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OpenRCT2/src/openrct2/world/Map.cpp
duncanspumpkin 61cb84e0ca Add WaterSetHeightAction
2019-03-02 16:06:03 +00:00

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/*****************************************************************************
* Copyright (c) 2014-2018 OpenRCT2 developers
*
* For a complete list of all authors, please refer to contributors.md
* Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
*
* OpenRCT2 is licensed under the GNU General Public License version 3.
*****************************************************************************/
#include "Map.h"
#include "../Cheats.h"
#include "../Context.h"
#include "../Game.h"
#include "../Input.h"
#include "../OpenRCT2.h"
#include "../actions/FootpathRemoveAction.hpp"
#include "../actions/LandSetHeightAction.hpp"
#include "../actions/LargeSceneryRemoveAction.hpp"
#include "../actions/SmallSceneryRemoveAction.hpp"
#include "../actions/WallRemoveAction.hpp"
#include "../actions/WaterSetHeightAction.hpp"
#include "../audio/audio.h"
#include "../config/Config.h"
#include "../core/Guard.hpp"
#include "../interface/Cursors.h"
#include "../interface/Window.h"
#include "../localisation/Date.h"
#include "../localisation/Localisation.h"
#include "../management/Finance.h"
#include "../network/network.h"
#include "../object/ObjectManager.h"
#include "../object/TerrainSurfaceObject.h"
#include "../ride/RideData.h"
#include "../ride/Track.h"
#include "../ride/TrackData.h"
#include "../ride/TrackDesign.h"
#include "../scenario/Scenario.h"
#include "../util/Util.h"
#include "../windows/Intent.h"
#include "Banner.h"
#include "Climate.h"
#include "Footpath.h"
#include "LargeScenery.h"
#include "MapAnimation.h"
#include "Park.h"
#include "Scenery.h"
#include "SmallScenery.h"
#include "Surface.h"
#include "TileInspector.h"
#include "Wall.h"
#include <algorithm>
#include <iterator>
using namespace OpenRCT2;
/**
* Replaces 0x00993CCC, 0x00993CCE
*/
const CoordsXY CoordsDirectionDelta[] = { { -32, 0 }, { 0, +32 }, { +32, 0 }, { 0, -32 },
{ -32, +32 }, { +32, +32 }, { +32, -32 }, { -32, -32 } };
const TileCoordsXY TileDirectionDelta[] = { { -1, 0 }, { 0, +1 }, { +1, 0 }, { 0, -1 },
{ -1, +1 }, { +1, +1 }, { +1, -1 }, { -1, -1 } };
uint16_t gMapSelectFlags;
uint16_t gMapSelectType;
LocationXY16 gMapSelectPositionA;
LocationXY16 gMapSelectPositionB;
LocationXYZ16 gMapSelectArrowPosition;
uint8_t gMapSelectArrowDirection;
uint8_t gMapGroundFlags;
uint16_t gWidePathTileLoopX;
uint16_t gWidePathTileLoopY;
uint16_t gGrassSceneryTileLoopPosition;
int16_t gMapSizeUnits;
int16_t gMapSizeMinus2;
int16_t gMapSize;
int16_t gMapSizeMaxXY;
int16_t gMapBaseZ;
TileElement gTileElements[MAX_TILE_TILE_ELEMENT_POINTERS * 3];
TileElement* gTileElementTilePointers[MAX_TILE_TILE_ELEMENT_POINTERS];
LocationXY16 gMapSelectionTiles[300];
std::vector<PeepSpawn> gPeepSpawns;
TileElement* gNextFreeTileElement;
uint32_t gNextFreeTileElementPointerIndex;
bool gLandMountainMode;
bool gLandPaintMode;
bool gClearSmallScenery;
bool gClearLargeScenery;
bool gClearFootpath;
uint16_t gLandRemainingOwnershipSales;
uint16_t gLandRemainingConstructionSales;
LocationXYZ16 gCommandPosition;
bool gMapLandRightsUpdateSuccess;
static void clear_elements_at(int32_t x, int32_t y);
static void translate_3d_to_2d(int32_t rotation, int32_t* x, int32_t* y);
void rotate_map_coordinates(int16_t* x, int16_t* y, int32_t rotation)
{
int32_t temp;
switch (rotation)
{
case TILE_ELEMENT_DIRECTION_WEST:
break;
case TILE_ELEMENT_DIRECTION_NORTH:
temp = *x;
*x = *y;
*y = -temp;
break;
case TILE_ELEMENT_DIRECTION_EAST:
*x = -*x;
*y = -*y;
break;
case TILE_ELEMENT_DIRECTION_SOUTH:
temp = *y;
*y = *x;
*x = -temp;
break;
}
}
LocationXY16 coordinate_3d_to_2d(const LocationXYZ16* coordinate_3d, int32_t rotation)
{
LocationXY16 coordinate_2d;
switch (rotation)
{
default:
case 0:
coordinate_2d.x = coordinate_3d->y - coordinate_3d->x;
coordinate_2d.y = ((coordinate_3d->y + coordinate_3d->x) >> 1) - coordinate_3d->z;
break;
case 1:
coordinate_2d.x = -coordinate_3d->y - coordinate_3d->x;
coordinate_2d.y = ((coordinate_3d->y - coordinate_3d->x) >> 1) - coordinate_3d->z;
break;
case 2:
coordinate_2d.x = -coordinate_3d->y + coordinate_3d->x;
coordinate_2d.y = ((-coordinate_3d->y - coordinate_3d->x) >> 1) - coordinate_3d->z;
break;
case 3:
coordinate_2d.x = coordinate_3d->y + coordinate_3d->x;
coordinate_2d.y = ((-coordinate_3d->y + coordinate_3d->x) >> 1) - coordinate_3d->z;
break;
}
return coordinate_2d;
}
void tile_element_iterator_begin(tile_element_iterator* it)
{
it->x = 0;
it->y = 0;
it->element = map_get_first_element_at(0, 0);
}
int32_t tile_element_iterator_next(tile_element_iterator* it)
{
if (it->element == nullptr)
{
it->element = map_get_first_element_at(it->x, it->y);
return 1;
}
if (!it->element->IsLastForTile())
{
it->element++;
return 1;
}
if (it->x < (MAXIMUM_MAP_SIZE_TECHNICAL - 1))
{
it->x++;
it->element = map_get_first_element_at(it->x, it->y);
return 1;
}
if (it->y < (MAXIMUM_MAP_SIZE_TECHNICAL - 1))
{
it->x = 0;
it->y++;
it->element = map_get_first_element_at(it->x, it->y);
return 1;
}
return 0;
}
void tile_element_iterator_restart_for_tile(tile_element_iterator* it)
{
it->element = nullptr;
}
TileElement* map_get_first_element_at(int32_t x, int32_t y)
{
if (x < 0 || y < 0 || x > (MAXIMUM_MAP_SIZE_TECHNICAL - 1) || y > (MAXIMUM_MAP_SIZE_TECHNICAL - 1))
{
log_error("Trying to access element outside of range");
return nullptr;
}
return gTileElementTilePointers[x + y * MAXIMUM_MAP_SIZE_TECHNICAL];
}
TileElement* map_get_nth_element_at(int32_t x, int32_t y, int32_t n)
{
TileElement* tileElement = map_get_first_element_at(x, y);
if (tileElement == nullptr)
{
return nullptr;
}
// Iterate through elements on this tile. This has to be walked, rather than
// jumped directly to, because n may exceed element count for given tile,
// and the order of tiles (unlike elements) is not synced over multiplayer.
while (n >= 0)
{
if (n == 0)
{
return tileElement;
}
if (tileElement->IsLastForTile())
{
break;
}
tileElement++;
n--;
}
// The element sought for is not within given tile.
return nullptr;
}
void map_set_tile_elements(int32_t x, int32_t y, TileElement* elements)
{
if (x < 0 || y < 0 || x > (MAXIMUM_MAP_SIZE_TECHNICAL - 1) || y > (MAXIMUM_MAP_SIZE_TECHNICAL - 1))
{
log_error("Trying to access element outside of range");
return;
}
gTileElementTilePointers[x + y * MAXIMUM_MAP_SIZE_TECHNICAL] = elements;
}
TileElement* map_get_surface_element_at(int32_t x, int32_t y)
{
TileElement* tileElement = map_get_first_element_at(x, y);
if (tileElement == nullptr)
return nullptr;
// Find the first surface element
while (tileElement->GetType() != TILE_ELEMENT_TYPE_SURFACE)
{
if (tileElement->IsLastForTile())
return nullptr;
tileElement++;
}
return tileElement;
}
TileElement* map_get_surface_element_at(const CoordsXY coords)
{
return map_get_surface_element_at(coords.x / 32, coords.y / 32);
}
TileElement* map_get_path_element_at(int32_t x, int32_t y, int32_t z)
{
TileElement* tileElement = map_get_first_element_at(x, y);
if (tileElement == nullptr)
return nullptr;
// Find the path element at known z
do
{
if (tileElement->IsGhost())
continue;
if (tileElement->GetType() != TILE_ELEMENT_TYPE_PATH)
continue;
if (tileElement->base_height != z)
continue;
return tileElement;
} while (!(tileElement++)->IsLastForTile());
return nullptr;
}
BannerElement* map_get_banner_element_at(int32_t x, int32_t y, int32_t z, uint8_t position)
{
TileElement* tileElement = map_get_first_element_at(x, y);
if (tileElement == nullptr)
return nullptr;
// Find the banner element at known z and position
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_BANNER)
continue;
if (tileElement->base_height != z)
continue;
if (tileElement->AsBanner()->GetPosition() != position)
continue;
return tileElement->AsBanner();
} while (!(tileElement++)->IsLastForTile());
return nullptr;
}
/**
*
* rct2: 0x0068AB4C
*/
void map_init(int32_t size)
{
gNumMapAnimations = 0;
gNextFreeTileElementPointerIndex = 0;
for (int32_t i = 0; i < MAX_TILE_TILE_ELEMENT_POINTERS; i++)
{
TileElement* tile_element = &gTileElements[i];
tile_element->ClearAs(TILE_ELEMENT_TYPE_SURFACE);
tile_element->flags = TILE_ELEMENT_FLAG_LAST_TILE;
tile_element->base_height = 14;
tile_element->clearance_height = 14;
tile_element->AsSurface()->SetWaterHeight(0);
tile_element->AsSurface()->SetSlope(TILE_ELEMENT_SLOPE_FLAT);
tile_element->AsSurface()->SetGrassLength(GRASS_LENGTH_CLEAR_0);
tile_element->AsSurface()->SetOwnership(OWNERSHIP_UNOWNED);
tile_element->AsSurface()->SetParkFences(0);
tile_element->AsSurface()->SetSurfaceStyle(TERRAIN_GRASS);
tile_element->AsSurface()->SetEdgeStyle(TERRAIN_EDGE_ROCK);
}
gGrassSceneryTileLoopPosition = 0;
gWidePathTileLoopX = 0;
gWidePathTileLoopY = 0;
gMapSizeUnits = size * 32 - 32;
gMapSizeMinus2 = size * 32 - 2;
gMapSize = size;
gMapSizeMaxXY = size * 32 - 33;
gMapBaseZ = 7;
map_update_tile_pointers();
map_remove_out_of_range_elements();
auto intent = Intent(INTENT_ACTION_MAP);
context_broadcast_intent(&intent);
}
/**
* Counts the number of surface tiles that offer land ownership rights for sale,
* but haven't been bought yet. It updates gLandRemainingOwnershipSales and
* gLandRemainingConstructionSales.
*/
void map_count_remaining_land_rights()
{
gLandRemainingOwnershipSales = 0;
gLandRemainingConstructionSales = 0;
for (int32_t x = 0; x < MAXIMUM_MAP_SIZE_TECHNICAL; x++)
{
for (int32_t y = 0; y < MAXIMUM_MAP_SIZE_TECHNICAL; y++)
{
TileElement* element = map_get_surface_element_at(x, y);
// Surface elements are sometimes hacked out to save some space for other map elements
if (element == nullptr)
{
continue;
}
uint8_t flags = element->AsSurface()->GetOwnership();
// Do not combine this condition with (flags & OWNERSHIP_AVAILABLE)
// As some RCT1 parks have owned tiles with the 'construction rights available' flag also set
if (!(flags & OWNERSHIP_OWNED))
{
if (flags & OWNERSHIP_AVAILABLE)
{
gLandRemainingOwnershipSales++;
}
else if (
(flags & OWNERSHIP_CONSTRUCTION_RIGHTS_AVAILABLE) && (flags & OWNERSHIP_CONSTRUCTION_RIGHTS_OWNED) == 0)
{
gLandRemainingConstructionSales++;
}
}
}
}
}
/**
* This is meant to strip TILE_ELEMENT_FLAG_GHOST flag from all elements when
* importing a park.
*
* This can only exist in hacked parks, as we remove ghost elements while saving.
*
* This is less invasive than removing ghost elements themselves, as they can
* contain valid data.
*/
void map_strip_ghost_flag_from_elements()
{
for (auto& element : gTileElements)
{
element.SetGhost(false);
}
}
/**
*
* rct2: 0x0068AFFD
*/
void map_update_tile_pointers()
{
int32_t i, x, y;
for (i = 0; i < MAX_TILE_TILE_ELEMENT_POINTERS; i++)
{
gTileElementTilePointers[i] = TILE_UNDEFINED_TILE_ELEMENT;
}
TileElement* tileElement = gTileElements;
TileElement** tile = gTileElementTilePointers;
for (y = 0; y < MAXIMUM_MAP_SIZE_TECHNICAL; y++)
{
for (x = 0; x < MAXIMUM_MAP_SIZE_TECHNICAL; x++)
{
*tile++ = tileElement;
while (!(tileElement++)->IsLastForTile())
;
}
}
gNextFreeTileElement = tileElement;
}
/**
* Return the absolute height of an element, given its (x,y) coordinates
*
* ax: x
* cx: y
* dx: return remember to & with 0xFFFF if you don't want water affecting results
* rct2: 0x00662783
*/
int32_t tile_element_height(int32_t x, int32_t y)
{
TileElement* tileElement;
// Off the map
if ((unsigned)x >= 8192 || (unsigned)y >= 8192)
return 16;
// Truncate subtile coordinates
int32_t x_tile = x & 0xFFFFFFE0;
int32_t y_tile = y & 0xFFFFFFE0;
// Get the surface element for the tile
tileElement = map_get_surface_element_at({ x_tile, y_tile });
if (tileElement == nullptr)
{
return 16;
}
uint32_t height = (tileElement->AsSurface()->GetWaterHeight() << 20) | (tileElement->base_height << 3);
uint32_t slope = tileElement->AsSurface()->GetSlope();
uint8_t extra_height = (slope & TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT) >> 4; // 0x10 is the 5th bit - sets slope to double height
// Remove the extra height bit
slope &= TILE_ELEMENT_SLOPE_ALL_CORNERS_UP;
int8_t quad = 0, quad_extra = 0; // which quadrant the element is in?
// quad_extra is for extra height tiles
uint8_t xl, yl; // coordinates across this tile
uint8_t TILE_SIZE = 31;
xl = x & 0x1f;
yl = y & 0x1f;
// Slope logic:
// Each of the four bits in slope represents that corner being raised
// slope == 15 (all four bits) is not used and slope == 0 is flat
// If the extra_height bit is set, then the slope goes up two z-levels
// We arbitrarily take the SW corner to be closest to the viewer
// One corner up
if (slope == TILE_ELEMENT_SLOPE_N_CORNER_UP || slope == TILE_ELEMENT_SLOPE_E_CORNER_UP
|| slope == TILE_ELEMENT_SLOPE_S_CORNER_UP || slope == TILE_ELEMENT_SLOPE_W_CORNER_UP)
{
switch (slope)
{
case TILE_ELEMENT_SLOPE_N_CORNER_UP:
quad = xl + yl - TILE_SIZE;
break;
case TILE_ELEMENT_SLOPE_E_CORNER_UP:
quad = xl - yl;
break;
case TILE_ELEMENT_SLOPE_S_CORNER_UP:
quad = TILE_SIZE - yl - xl;
break;
case TILE_ELEMENT_SLOPE_W_CORNER_UP:
quad = yl - xl;
break;
}
// If the element is in the quadrant with the slope, raise its height
if (quad > 0)
{
height += quad / 2;
}
}
// One side up
switch (slope)
{
case TILE_ELEMENT_SLOPE_NE_SIDE_UP:
height += xl / 2 + 1;
break;
case TILE_ELEMENT_SLOPE_SE_SIDE_UP:
height += (TILE_SIZE - yl) / 2;
break;
case TILE_ELEMENT_SLOPE_NW_SIDE_UP:
height += yl / 2;
height++;
break;
case TILE_ELEMENT_SLOPE_SW_SIDE_UP:
height += (TILE_SIZE - xl) / 2;
break;
}
// One corner down
if ((slope == TILE_ELEMENT_SLOPE_W_CORNER_DN) || (slope == TILE_ELEMENT_SLOPE_S_CORNER_DN)
|| (slope == TILE_ELEMENT_SLOPE_E_CORNER_DN) || (slope == TILE_ELEMENT_SLOPE_N_CORNER_DN))
{
switch (slope)
{
case TILE_ELEMENT_SLOPE_W_CORNER_DN:
quad_extra = xl + TILE_SIZE - yl;
quad = xl - yl;
break;
case TILE_ELEMENT_SLOPE_S_CORNER_DN:
quad_extra = xl + yl;
quad = xl + yl - TILE_SIZE - 1;
break;
case TILE_ELEMENT_SLOPE_E_CORNER_DN:
quad_extra = TILE_SIZE - xl + yl;
quad = yl - xl;
break;
case TILE_ELEMENT_SLOPE_N_CORNER_DN:
quad_extra = (TILE_SIZE - xl) + (TILE_SIZE - yl);
quad = TILE_SIZE - yl - xl - 1;
break;
}
if (extra_height)
{
height += quad_extra / 2;
height++;
return height;
}
// This tile is essentially at the next height level
height += 0x10;
// so we move *down* the slope
if (quad < 0)
{
height += quad / 2;
}
}
// Valleys
if ((slope == TILE_ELEMENT_SLOPE_W_E_VALLEY) || (slope == TILE_ELEMENT_SLOPE_N_S_VALLEY))
{
switch (slope)
{
case TILE_ELEMENT_SLOPE_W_E_VALLEY:
if (xl + yl <= TILE_SIZE + 1)
{
return height;
}
quad = TILE_SIZE - xl - yl;
break;
case TILE_ELEMENT_SLOPE_N_S_VALLEY:
quad = xl - yl;
break;
}
if (quad > 0)
{
height += quad / 2;
}
}
return height;
}
/**
* Checks if the tile at coordinate at height counts as connected.
* @return 1 if connected, 0 otherwise
*/
bool map_coord_is_connected(int32_t x, int32_t y, int32_t z, uint8_t faceDirection)
{
TileElement* tileElement = map_get_first_element_at(x, y);
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_PATH)
continue;
uint8_t slopeDirection = tileElement->AsPath()->GetSlopeDirection();
if (tileElement->AsPath()->IsSloped())
{
if (slopeDirection == faceDirection)
{
if (z == tileElement->base_height + 2)
return true;
}
else if (direction_reverse(slopeDirection) == faceDirection && z == tileElement->base_height)
{
return true;
}
}
else
{
if (z == tileElement->base_height)
return true;
}
} while (!(tileElement++)->IsLastForTile());
return false;
}
/**
*
* rct2: 0x006A876D
*/
void map_update_path_wide_flags()
{
if (gScreenFlags & (SCREEN_FLAGS_TRACK_DESIGNER | SCREEN_FLAGS_TRACK_MANAGER))
{
return;
}
// Presumably update_path_wide_flags is too computationally expensive to call for every
// tile every update, so gWidePathTileLoopX and gWidePathTileLoopY store the x and y
// progress. A maximum of 128 calls is done per update.
uint16_t x = gWidePathTileLoopX;
uint16_t y = gWidePathTileLoopY;
for (int32_t i = 0; i < 128; i++)
{
footpath_update_path_wide_flags(x, y);
// Next x, y tile
x += 32;
if (x >= 8192)
{
x = 0;
y += 32;
if (y >= 8192)
{
y = 0;
}
}
}
gWidePathTileLoopX = x;
gWidePathTileLoopY = y;
}
/**
*
* rct2: 0x006A7B84
*/
int32_t map_height_from_slope(const CoordsXY coords, int32_t slope, bool isSloped)
{
if (!isSloped)
return 0;
switch (slope & FOOTPATH_PROPERTIES_SLOPE_DIRECTION_MASK)
{
case TILE_ELEMENT_DIRECTION_WEST:
return (31 - (coords.x & 31)) / 2;
case TILE_ELEMENT_DIRECTION_NORTH:
return (coords.y & 31) / 2;
case TILE_ELEMENT_DIRECTION_EAST:
return (coords.x & 31) / 2;
case TILE_ELEMENT_DIRECTION_SOUTH:
return (31 - (coords.y & 31)) / 2;
}
return 0;
}
bool map_is_location_valid(const CoordsXY coords)
{
if (coords.x < (MAXIMUM_MAP_SIZE_TECHNICAL * 32) && coords.x >= 0 && coords.y < (MAXIMUM_MAP_SIZE_TECHNICAL * 32)
&& coords.y >= 0)
{
return true;
}
return false;
}
bool map_is_edge(const CoordsXY coords)
{
return (coords.x < 32 || coords.y < 32 || coords.x >= gMapSizeUnits || coords.y >= gMapSizeUnits);
}
bool map_can_build_at(int32_t x, int32_t y, int32_t z)
{
if (gScreenFlags & SCREEN_FLAGS_SCENARIO_EDITOR)
return true;
if (gCheatsSandboxMode)
return true;
if (map_is_location_owned(x, y, z))
return true;
return false;
}
/**
*
* rct2: 0x00664F72
*/
bool map_is_location_owned(int32_t x, int32_t y, int32_t z)
{
// This check is to avoid throwing lots of messages in logs.
if (map_is_location_valid({ x, y }))
{
TileElement* tileElement = map_get_surface_element_at({ x, y });
if (tileElement != nullptr)
{
if (tileElement->AsSurface()->GetOwnership() & OWNERSHIP_OWNED)
return true;
if (tileElement->AsSurface()->GetOwnership() & OWNERSHIP_CONSTRUCTION_RIGHTS_OWNED)
{
z /= 8;
if (z < tileElement->base_height || z - 2 > tileElement->base_height)
return true;
}
}
}
gGameCommandErrorText = STR_LAND_NOT_OWNED_BY_PARK;
return false;
}
/**
*
* rct2: 0x00664F2C
*/
bool map_is_location_in_park(const CoordsXY coords)
{
if (map_is_location_valid(coords))
{
TileElement* tileElement = map_get_surface_element_at(coords);
if (tileElement == nullptr)
return false;
if (tileElement->AsSurface()->GetOwnership() & OWNERSHIP_OWNED)
return true;
}
gGameCommandErrorText = STR_LAND_NOT_OWNED_BY_PARK;
return false;
}
bool map_is_location_owned_or_has_rights(int32_t x, int32_t y)
{
if (map_is_location_valid({ x, y }))
{
TileElement* tileElement = map_get_surface_element_at({ x, y });
if (tileElement == nullptr)
{
return false;
}
if (tileElement->AsSurface()->GetOwnership() & OWNERSHIP_OWNED)
return true;
if (tileElement->AsSurface()->GetOwnership() & OWNERSHIP_CONSTRUCTION_RIGHTS_OWNED)
return true;
}
return false;
}
/**
*
* rct2: 0x006B909A
*/
void game_command_set_large_scenery_colour(
int32_t* eax, int32_t* ebx, int32_t* ecx, int32_t* edx, [[maybe_unused]] int32_t* esi, [[maybe_unused]] int32_t* edi,
int32_t* ebp)
{
gCommandExpenditureType = RCT_EXPENDITURE_TYPE_LANDSCAPING;
int32_t x = *eax;
int32_t y = *ecx;
uint8_t tile_element_direction = *ebx >> 8;
uint8_t flags = *ebx & 0xFF;
uint8_t base_height = *edx;
uint8_t tileIndex = *edx >> 8;
uint8_t colour1 = *ebp;
uint8_t colour2 = *ebp >> 8;
int32_t z = tile_element_height(x, y);
gCommandPosition.x = x + 16;
gCommandPosition.y = y + 16;
gCommandPosition.z = z;
TileElement* tile_element = map_get_large_scenery_segment(x, y, base_height, tile_element_direction, tileIndex);
if (tile_element == nullptr)
{
*ebx = 0;
return;
}
if ((flags & GAME_COMMAND_FLAG_GHOST) && !(tile_element->IsGhost()))
{
*ebx = 0;
return;
}
rct_scenery_entry* scenery_entry = tile_element->AsLargeScenery()->GetEntry();
// Work out the base tile coordinates (Tile with index 0)
LocationXYZ16 baseTile = {
scenery_entry->large_scenery.tiles[tileIndex].x_offset, scenery_entry->large_scenery.tiles[tileIndex].y_offset,
static_cast<int16_t>((base_height * 8) - scenery_entry->large_scenery.tiles[tileIndex].z_offset)
};
rotate_map_coordinates(&baseTile.x, &baseTile.y, tile_element_direction);
baseTile.x = x - baseTile.x;
baseTile.y = y - baseTile.y;
for (int32_t i = 0; scenery_entry->large_scenery.tiles[i].x_offset != -1; ++i)
{
assert(i < MAXIMUM_MAP_SIZE_TECHNICAL);
// Work out the current tile coordinates
LocationXYZ16 currentTile = { scenery_entry->large_scenery.tiles[i].x_offset,
scenery_entry->large_scenery.tiles[i].y_offset,
scenery_entry->large_scenery.tiles[i].z_offset };
rotate_map_coordinates(&currentTile.x, &currentTile.y, tile_element_direction);
currentTile.x += baseTile.x;
currentTile.y += baseTile.y;
currentTile.z += baseTile.z;
if (!(gScreenFlags & SCREEN_FLAGS_SCENARIO_EDITOR) && !gCheatsSandboxMode)
{
if (!map_is_location_owned(currentTile.x, currentTile.y, currentTile.z))
{
*ebx = MONEY32_UNDEFINED;
return;
}
}
if (flags & GAME_COMMAND_FLAG_APPLY)
{
TileElement* tileElement = map_get_large_scenery_segment(
currentTile.x, currentTile.y, base_height, tile_element_direction, i);
tileElement->AsLargeScenery()->SetPrimaryColour(colour1);
tileElement->AsLargeScenery()->SetSecondaryColour(colour2);
map_invalidate_tile_full(currentTile.x, currentTile.y);
}
}
*ebx = 0;
}
/**
*
* rct2: 0x00663CCD
*/
static money32 map_change_surface_style(
int32_t x0, int32_t y0, int32_t x1, int32_t y1, uint8_t surfaceStyle, uint8_t edgeStyle, uint8_t flags)
{
gCommandExpenditureType = RCT_EXPENDITURE_TYPE_LANDSCAPING;
x0 = std::max(x0, 32);
y0 = std::max(y0, 32);
x1 = std::min(x1, (int32_t)gMapSizeMaxXY);
y1 = std::min(y1, (int32_t)gMapSizeMaxXY);
int32_t xMid, yMid;
xMid = (x0 + x1) / 2 + 16;
yMid = (y0 + y1) / 2 + 16;
int32_t heightMid = tile_element_height(xMid, yMid);
gCommandPosition.x = xMid;
gCommandPosition.y = yMid;
gCommandPosition.z = heightMid;
// Do nothing during pause
if (game_is_paused() && !gCheatsBuildInPauseMode)
{
return 0;
}
// Do nothing if not in editor, sandbox mode or landscaping is forbidden
if (!(gScreenFlags & SCREEN_FLAGS_SCENARIO_EDITOR) && !gCheatsSandboxMode
&& (gParkFlags & PARK_FLAGS_FORBID_LANDSCAPE_CHANGES))
{
return 0;
}
money32 surfaceCost = 0;
money32 edgeCost = 0;
for (int32_t x = x0; x <= x1; x += 32)
{
for (int32_t y = y0; y <= y1; y += 32)
{
if (x > 0x1FFF)
continue;
if (y > 0x1FFF)
continue;
if (!(gScreenFlags & SCREEN_FLAGS_SCENARIO_EDITOR) && !gCheatsSandboxMode)
{
if (!map_is_location_in_park({ x, y }))
continue;
}
auto surfaceElement = map_get_surface_element_at({ x, y })->AsSurface();
if (surfaceElement == nullptr)
{
continue;
}
if (surfaceStyle != 0xFF)
{
uint8_t cur_terrain = surfaceElement->GetSurfaceStyle();
if (surfaceStyle != cur_terrain)
{
// Prevent network-originated value of surfaceStyle from causing
// invalid access.
uint8_t style = surfaceStyle & 0x1F;
auto& objManager = GetContext()->GetObjectManager();
const auto surfaceObj = static_cast<TerrainSurfaceObject*>(
objManager.GetLoadedObject(OBJECT_TYPE_TERRAIN_SURFACE, style));
if (surfaceObj != nullptr)
{
surfaceCost += surfaceObj->Price;
}
if (flags & GAME_COMMAND_FLAG_APPLY)
{
surfaceElement->SetSurfaceStyle(surfaceStyle);
map_invalidate_tile_full(x, y);
footpath_remove_litter(x, y, tile_element_height(x, y));
}
}
}
if (edgeStyle != 0xFF)
{
uint8_t currentEdge = surfaceElement->GetEdgeStyle();
if (edgeStyle != currentEdge)
{
edgeCost += 100;
if (flags & GAME_COMMAND_FLAG_APPLY)
{
surfaceElement->SetEdgeStyle(edgeStyle);
map_invalidate_tile_full(x, y);
}
}
}
if (flags & GAME_COMMAND_FLAG_APPLY)
{
if (surfaceElement->CanGrassGrow() && (surfaceElement->GetGrassLength() & 7) != GRASS_LENGTH_CLEAR_0)
{
surfaceElement->SetGrassLength(GRASS_LENGTH_CLEAR_0);
map_invalidate_tile_full(x, y);
}
}
}
}
if (flags & GAME_COMMAND_FLAG_APPLY && gGameCommandNestLevel == 1)
{
LocationXYZ16 coord;
coord.x = ((x0 + x1) / 2) + 16;
coord.y = ((y0 + y1) / 2) + 16;
coord.z = tile_element_height(coord.x, coord.y);
network_set_player_last_action_coord(network_get_player_index(game_command_playerid), coord);
}
return (gParkFlags & PARK_FLAGS_NO_MONEY) ? 0 : surfaceCost + edgeCost;
}
/**
*
* rct2: 0x00663CCD
*/
void game_command_change_surface_style(
int32_t* eax, int32_t* ebx, int32_t* ecx, int32_t* edx, [[maybe_unused]] int32_t* esi, int32_t* edi, int32_t* ebp)
{
*ebx = map_change_surface_style(
(int16_t)(*eax & 0xFFFF), (int16_t)(*ecx & 0xFFFF), (int16_t)(*edi & 0xFFFF), (int16_t)(*ebp & 0xFFFF), *edx & 0xFF,
(*edx & 0xFF00) >> 8, *ebx & 0xFF);
}
// 0x00981A1E
#define SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT 0x20
// Table of pre-calculated surface slopes (32) when raising the land tile for a given selection (5)
// 0x1F = new slope
// 0x20 = base height increases
static constexpr const uint8_t tile_element_raise_styles[9][32] = {
{ 0x01, 0x1B, 0x03, 0x1B, 0x05, 0x21, 0x07, 0x21, 0x09, 0x1B, 0x0B, 0x1B, 0x0D, 0x21, 0x20, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x23, 0x18, 0x19, 0x1A, 0x3B, 0x1C, 0x29, 0x24, 0x1F }, // MAP_SELECT_TYPE_CORNER_0
// (absolute rotation)
{ 0x02, 0x03, 0x17, 0x17, 0x06, 0x07, 0x17, 0x17, 0x0A, 0x0B, 0x22, 0x22, 0x0E, 0x20, 0x22, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x37, 0x18, 0x19, 0x1A, 0x23, 0x1C, 0x28, 0x26, 0x1F }, // MAP_SELECT_TYPE_CORNER_1
{ 0x04, 0x05, 0x06, 0x07, 0x1E, 0x24, 0x1E, 0x24, 0x0C, 0x0D, 0x0E, 0x20, 0x1E, 0x24, 0x1E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x26, 0x18, 0x19, 0x1A, 0x21, 0x1C, 0x2C, 0x3E, 0x1F }, // MAP_SELECT_TYPE_CORNER_2
{ 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x20, 0x1D, 0x1D, 0x28, 0x28, 0x1D, 0x1D, 0x28, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x22, 0x18, 0x19, 0x1A, 0x29, 0x1C, 0x3D, 0x2C, 0x1F }, // MAP_SELECT_TYPE_CORNER_3
{ 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x22, 0x20, 0x20, 0x20, 0x21, 0x20, 0x28, 0x24, 0x20 }, // MAP_SELECT_TYPE_FULL
{ 0x0C, 0x0D, 0x0E, 0x20, 0x0C, 0x0D, 0x0E, 0x20, 0x0C, 0x0D, 0x0E, 0x20, 0x2C, 0x2C, 0x2C, 0x2C,
0x0C, 0x0D, 0x0E, 0x20, 0x0C, 0x0C, 0x0E, 0x22, 0x0C, 0x0D, 0x0E, 0x21, 0x2C, 0x2C, 0x2C, 0x2C }, // MAP_SELECT_TYPE_EDGE_0
{ 0x09, 0x09, 0x0B, 0x0B, 0x0D, 0x0D, 0x20, 0x20, 0x09, 0x29, 0x0B, 0x29, 0x0D, 0x29, 0x20, 0x29,
0x09, 0x09, 0x0B, 0x0B, 0x0D, 0x0D, 0x24, 0x22, 0x09, 0x29, 0x0B, 0x29, 0x0D, 0x29, 0x24, 0x29 }, // MAP_SELECT_TYPE_EDGE_1
{ 0x03, 0x03, 0x03, 0x23, 0x07, 0x07, 0x07, 0x23, 0x0B, 0x0B, 0x0B, 0x23, 0x20, 0x20, 0x20, 0x23,
0x03, 0x03, 0x03, 0x23, 0x07, 0x07, 0x07, 0x23, 0x0B, 0x0B, 0x0B, 0x23, 0x20, 0x28, 0x24, 0x23 }, // MAP_SELECT_TYPE_EDGE_2
{ 0x06, 0x07, 0x06, 0x07, 0x06, 0x07, 0x26, 0x26, 0x0E, 0x20, 0x0E, 0x20, 0x0E, 0x20, 0x26, 0x26,
0x06, 0x07, 0x06, 0x07, 0x06, 0x07, 0x26, 0x26, 0x0E, 0x20, 0x0E, 0x21, 0x0E, 0x28, 0x26, 0x26 }, // MAP_SELECT_TYPE_EDGE_3
};
// 0x00981ABE
// Basically the inverse of the table above.
// 0x1F = new slope
// 0x20 = base height increases
static constexpr const uint8_t tile_element_lower_styles[9][32] = {
{ 0x2E, 0x00, 0x2E, 0x02, 0x3E, 0x04, 0x3E, 0x06, 0x2E, 0x08, 0x2E, 0x0A, 0x3E, 0x0C, 0x3E, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x06, 0x18, 0x19, 0x1A, 0x0B, 0x1C, 0x0C, 0x3E, 0x1F }, // MAP_SELECT_TYPE_CORNER_0
{ 0x2D, 0x2D, 0x00, 0x01, 0x2D, 0x2D, 0x04, 0x05, 0x3D, 0x3D, 0x08, 0x09, 0x3D, 0x3D, 0x0C, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x07, 0x18, 0x19, 0x1A, 0x09, 0x1C, 0x3D, 0x0C, 0x1F }, // MAP_SELECT_TYPE_CORNER_1
{ 0x2B, 0x3B, 0x2B, 0x3B, 0x00, 0x01, 0x02, 0x03, 0x2B, 0x3B, 0x2B, 0x3B, 0x08, 0x09, 0x0A, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x03, 0x18, 0x19, 0x1A, 0x3B, 0x1C, 0x09, 0x0E, 0x1F }, // MAP_SELECT_TYPE_CORNER_2
{ 0x27, 0x27, 0x37, 0x37, 0x27, 0x27, 0x37, 0x37, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x0F,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x37, 0x18, 0x19, 0x1A, 0x03, 0x1C, 0x0D, 0x06, 0x1F }, // MAP_SELECT_TYPE_CORNER_3
{ 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x0B, 0x00, 0x0D, 0x0E, 0x00 }, // MAP_SELECT_TYPE_FULL
{ 0x23, 0x23, 0x23, 0x23, 0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x02, 0x03,
0x23, 0x23, 0x23, 0x23, 0x00, 0x01, 0x02, 0x03, 0x00, 0x01, 0x02, 0x03, 0x00, 0x0D, 0x0E, 0x03 }, // MAP_SELECT_TYPE_EDGE_0
{ 0x26, 0x00, 0x26, 0x02, 0x26, 0x04, 0x26, 0x06, 0x00, 0x00, 0x02, 0x02, 0x04, 0x04, 0x06, 0x06,
0x26, 0x00, 0x26, 0x02, 0x26, 0x04, 0x26, 0x06, 0x00, 0x00, 0x02, 0x0B, 0x04, 0x0D, 0x06, 0x06 }, // MAP_SELECT_TYPE_EDGE_1
{ 0x2C, 0x00, 0x00, 0x00, 0x2C, 0x04, 0x04, 0x04, 0x2C, 0x08, 0x08, 0x08, 0x2C, 0x0C, 0x0C, 0x0C,
0x2C, 0x00, 0x00, 0x00, 0x2C, 0x04, 0x04, 0x07, 0x2C, 0x08, 0x08, 0x0B, 0x2C, 0x0C, 0x0C, 0x0C }, // MAP_SELECT_TYPE_EDGE_2
{ 0x29, 0x29, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01, 0x29, 0x29, 0x08, 0x09, 0x08, 0x09, 0x08, 0x09,
0x29, 0x29, 0x00, 0x01, 0x00, 0x01, 0x00, 0x07, 0x29, 0x29, 0x08, 0x09, 0x08, 0x09, 0x0E, 0x09 }, // MAP_SELECT_TYPE_EDGE_3
};
int32_t map_get_corner_height(int32_t z, int32_t slope, int32_t direction)
{
switch (direction)
{
case 0:
if (slope & TILE_ELEMENT_SLOPE_N_CORNER_UP)
{
z += 2;
if (slope == (TILE_ELEMENT_SLOPE_S_CORNER_DN | TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT))
{
z += 2;
}
}
break;
case 1:
if (slope & TILE_ELEMENT_SLOPE_E_CORNER_UP)
{
z += 2;
if (slope == (TILE_ELEMENT_SLOPE_W_CORNER_DN | TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT))
{
z += 2;
}
}
break;
case 2:
if (slope & TILE_ELEMENT_SLOPE_S_CORNER_UP)
{
z += 2;
if (slope == (TILE_ELEMENT_SLOPE_N_CORNER_DN | TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT))
{
z += 2;
}
}
break;
case 3:
if (slope & TILE_ELEMENT_SLOPE_W_CORNER_UP)
{
z += 2;
if (slope == (TILE_ELEMENT_SLOPE_E_CORNER_DN | TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT))
{
z += 2;
}
}
break;
}
return z;
}
int32_t tile_element_get_corner_height(const TileElement* tileElement, int32_t direction)
{
int32_t z = tileElement->base_height;
int32_t slope = tileElement->AsSurface()->GetSlope();
return map_get_corner_height(z, slope, direction);
}
static money32 map_set_land_ownership(uint8_t flags, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint8_t newOwnership)
{
gCommandExpenditureType = RCT_EXPENDITURE_TYPE_LAND_PURCHASE;
if (!(flags & GAME_COMMAND_FLAG_APPLY))
return 0;
// Clamp to maximum addressable element to prevent long loop spamming the log
x1 = std::clamp<int16_t>(x1, 32, gMapSizeUnits - 32);
y1 = std::clamp<int16_t>(y1, 32, gMapSizeUnits - 32);
x2 = std::clamp<int16_t>(x2, 32, gMapSizeUnits - 32);
y2 = std::clamp<int16_t>(y2, 32, gMapSizeUnits - 32);
gMapLandRightsUpdateSuccess = false;
map_buy_land_rights(x1, y1, x2, y2, BUY_LAND_RIGHTS_FLAG_SET_OWNERSHIP_WITH_CHECKS, flags | (newOwnership << 8));
if (!gMapLandRightsUpdateSuccess)
return 0;
int16_t x = std::clamp<int16_t>(x1, 32, gMapSizeUnits - 32);
int16_t y = std::clamp<int16_t>(y1, 32, gMapSizeUnits - 32);
x += 16;
y += 16;
int16_t z = tile_element_height(x, y) & 0xFFFF;
audio_play_sound_at_location(SOUND_PLACE_ITEM, x, y, z);
return 0;
}
/**
*
* rct2: 0x006648E3
*/
void game_command_set_land_ownership(
int32_t* eax, int32_t* ebx, int32_t* ecx, int32_t* edx, [[maybe_unused]] int32_t* esi, int32_t* edi, int32_t* ebp)
{
int32_t flags = *ebx & 0xFF;
*ebx = map_set_land_ownership(flags, *eax & 0xFFFF, *ecx & 0xFFFF, *edi & 0xFFFF, *ebp & 0xFFFF, *edx & 0xFF);
if (flags & GAME_COMMAND_FLAG_APPLY)
{
map_count_remaining_land_rights();
}
}
static uint8_t map_get_lowest_land_height(int32_t xMin, int32_t xMax, int32_t yMin, int32_t yMax)
{
xMin = std::max(xMin, 32);
yMin = std::max(yMin, 32);
xMax = std::min(xMax, (int32_t)gMapSizeMaxXY);
yMax = std::min(yMax, (int32_t)gMapSizeMaxXY);
uint8_t min_height = 0xFF;
for (int32_t yi = yMin; yi <= yMax; yi += 32)
{
for (int32_t xi = xMin; xi <= xMax; xi += 32)
{
TileElement* tile_element = map_get_surface_element_at({ xi, yi });
if (tile_element != nullptr && min_height > tile_element->base_height)
{
min_height = tile_element->base_height;
}
}
}
return min_height;
}
static uint8_t map_get_highest_land_height(int32_t xMin, int32_t xMax, int32_t yMin, int32_t yMax)
{
xMin = std::max(xMin, 32);
yMin = std::max(yMin, 32);
xMax = std::min(xMax, (int32_t)gMapSizeMaxXY);
yMax = std::min(yMax, (int32_t)gMapSizeMaxXY);
uint8_t max_height = 0;
for (int32_t yi = yMin; yi <= yMax; yi += 32)
{
for (int32_t xi = xMin; xi <= xMax; xi += 32)
{
TileElement* tile_element = map_get_surface_element_at({ xi, yi });
if (tile_element != nullptr)
{
uint8_t base_height = tile_element->base_height;
if (tile_element->AsSurface()->GetSlope() & TILE_ELEMENT_SLOPE_ALL_CORNERS_UP)
base_height += 2;
if (tile_element->AsSurface()->GetSlope() & TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT)
base_height += 2;
if (max_height < base_height)
max_height = base_height;
}
}
}
return max_height;
}
static money32 raise_land(
int32_t flags, int32_t x, int32_t y, int32_t z, int32_t point_a_x, int32_t point_a_y, int32_t point_b_x, int32_t point_b_y,
int32_t selectionType)
{
money32 cost = 0;
size_t tableRow = selectionType;
// The selections between MAP_SELECT_TYPE_FULL and MAP_SELECT_TYPE_EDGE_0 are not included in the tables
if (selectionType >= MAP_SELECT_TYPE_EDGE_0 && selectionType <= MAP_SELECT_TYPE_EDGE_3)
tableRow -= MAP_SELECT_TYPE_EDGE_0 - MAP_SELECT_TYPE_FULL - 1;
if ((flags & GAME_COMMAND_FLAG_APPLY) && gGameCommandNestLevel == 1)
{
audio_play_sound_at_location(SOUND_PLACE_ITEM, x, y, z);
}
// Keep big coordinates within map boundaries
point_a_x = std::max<decltype(point_a_x)>(32, point_a_x);
point_b_x = std::min<decltype(point_b_x)>(gMapSizeMaxXY, point_b_x);
point_a_y = std::max<decltype(point_a_y)>(32, point_a_y);
point_b_y = std::min<decltype(point_b_y)>(gMapSizeMaxXY, point_b_y);
uint8_t min_height = map_get_lowest_land_height(point_a_x, point_b_x, point_a_y, point_b_y);
for (int32_t y_coord = point_a_y; y_coord <= point_b_y; y_coord += 32)
{
for (int32_t x_coord = point_a_x; x_coord <= point_b_x; x_coord += 32)
{
TileElement* tile_element = map_get_surface_element_at(x_coord / 32, y_coord / 32);
if (tile_element != nullptr)
{
uint8_t height = tile_element->base_height;
if (height <= min_height)
{
uint8_t raisedCorners = tile_element->AsSurface()->GetSlope();
uint8_t slope = tile_element_raise_styles[tableRow][raisedCorners];
if (slope & SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT)
height += 2;
slope &= TILE_ELEMENT_SURFACE_SLOPE_MASK;
auto landSetHeightAction = LandSetHeightAction({ x_coord, y_coord }, height, slope);
auto res = (flags & GAME_COMMAND_FLAG_APPLY) ? landSetHeightAction.Execute() : landSetHeightAction.Query();
if (res->Error != GA_ERROR::OK)
{
return MONEY32_UNDEFINED;
}
cost += res->Cost;
}
}
}
}
// Force ride construction to recheck area
_currentTrackSelectionFlags |= TRACK_SELECTION_FLAG_RECHECK;
gCommandExpenditureType = RCT_EXPENDITURE_TYPE_LANDSCAPING;
gCommandPosition.x = x;
gCommandPosition.y = y;
gCommandPosition.z = z;
return cost;
}
static money32 lower_land(
int32_t flags, int32_t x, int32_t y, int32_t z, int32_t point_a_x, int32_t point_a_y, int32_t point_b_x, int32_t point_b_y,
int32_t selectionType)
{
money32 cost = 0;
size_t tableRow = selectionType;
// The selections between MAP_SELECT_TYPE_FULL and MAP_SELECT_TYPE_EDGE_0 are not included in the tables
if (selectionType >= MAP_SELECT_TYPE_EDGE_0 && selectionType <= MAP_SELECT_TYPE_EDGE_3)
tableRow -= MAP_SELECT_TYPE_EDGE_0 - MAP_SELECT_TYPE_FULL - 1;
// Keep big coordinates within map boundaries
point_a_x = std::max<decltype(point_a_x)>(32, point_a_x);
point_b_x = std::min<decltype(point_b_x)>(gMapSizeMaxXY, point_b_x);
point_a_y = std::max<decltype(point_a_y)>(32, point_a_y);
point_b_y = std::min<decltype(point_b_y)>(gMapSizeMaxXY, point_b_y);
if ((flags & GAME_COMMAND_FLAG_APPLY) && gGameCommandNestLevel == 1)
{
audio_play_sound_at_location(SOUND_PLACE_ITEM, x, y, z);
}
uint8_t max_height = map_get_highest_land_height(point_a_x, point_b_x, point_a_y, point_b_y);
for (int32_t y_coord = point_a_y; y_coord <= point_b_y; y_coord += 32)
{
for (int32_t x_coord = point_a_x; x_coord <= point_b_x; x_coord += 32)
{
TileElement* tile_element = map_get_surface_element_at(x_coord / 32, y_coord / 32);
if (tile_element != nullptr)
{
uint8_t height = tile_element->base_height;
if (tile_element->AsSurface()->GetSlope() & TILE_ELEMENT_SURFACE_RAISED_CORNERS_MASK)
height += 2;
if (tile_element->AsSurface()->GetSlope() & TILE_ELEMENT_SURFACE_DIAGONAL_FLAG)
height += 2;
if (height >= max_height)
{
height = tile_element->base_height;
uint8_t currentSlope = tile_element->AsSurface()->GetSlope();
uint8_t newSlope = tile_element_lower_styles[tableRow][currentSlope];
if (newSlope & SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT)
height -= 2;
newSlope &= TILE_ELEMENT_SURFACE_SLOPE_MASK;
auto landSetHeightAction = LandSetHeightAction({ x_coord, y_coord }, height, newSlope);
landSetHeightAction.SetFlags(flags);
auto res = (flags & GAME_COMMAND_FLAG_APPLY) ? GameActions::ExecuteNested(&landSetHeightAction)
: GameActions::QueryNested(&landSetHeightAction);
if (res->Error != GA_ERROR::OK)
{
return MONEY32_UNDEFINED;
}
cost += res->Cost;
}
}
}
}
// Force ride construction to recheck area
_currentTrackSelectionFlags |= TRACK_SELECTION_FLAG_RECHECK;
gCommandExpenditureType = RCT_EXPENDITURE_TYPE_LANDSCAPING;
gCommandPosition.x = x;
gCommandPosition.y = y;
gCommandPosition.z = z;
return cost;
}
money32 raise_water(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint8_t flags)
{
money32 cost = 0;
bool waterHeightChanged = false;
uint8_t max_height = 0xFF;
x0 = std::max(x0, (int16_t)32);
y0 = std::max(y0, (int16_t)32);
x1 = std::min(x1, gMapSizeMaxXY);
y1 = std::min(y1, gMapSizeMaxXY);
for (int32_t yi = y0; yi <= y1; yi += 32)
{
for (int32_t xi = x0; xi <= x1; xi += 32)
{
TileElement* tile_element = map_get_surface_element_at({ xi, yi });
if (tile_element != nullptr)
{
uint8_t height = tile_element->base_height;
if (tile_element->AsSurface()->GetWaterHeight() > 0)
height = tile_element->AsSurface()->GetWaterHeight() * 2;
if (max_height > height)
max_height = height;
}
}
}
for (int32_t yi = y0; yi <= y1; yi += 32)
{
for (int32_t xi = x0; xi <= x1; xi += 32)
{
TileElement* tile_element = map_get_surface_element_at({ xi, yi });
if (tile_element != nullptr)
{
if (tile_element->base_height <= max_height)
{
uint8_t height = tile_element->AsSurface()->GetWaterHeight();
if (height != 0)
{
height *= 2;
if (height > max_height)
continue;
height += 2;
}
else
{
height = tile_element->base_height + 2;
}
auto waterSetHeightAction = WaterSetHeightAction({ xi, yi }, height);
waterSetHeightAction.SetFlags(flags);
auto res = flags & GAME_COMMAND_FLAG_APPLY ? GameActions::ExecuteNested(&waterSetHeightAction)
: GameActions::QueryNested(&waterSetHeightAction);
if (res->Error != GA_ERROR::OK)
{
gGameCommandErrorText = res->ErrorMessage;
// set gCommonFormatArguments to res->ErrorArgs
return MONEY32_UNDEFINED;
}
cost += res->Cost;
waterHeightChanged = true;
}
}
}
}
if (flags & GAME_COMMAND_FLAG_APPLY)
{
int32_t x = ((x0 + x1) / 2) + 16;
int32_t y = ((y0 + y1) / 2) + 16;
int32_t z = tile_element_height(x, y);
int16_t water_height_z = z >> 16;
int16_t base_height_z = z;
z = water_height_z;
if (z != 0)
z = base_height_z;
LocationXYZ16 coord;
coord.x = x;
coord.y = y;
coord.z = z;
network_set_player_last_action_coord(network_get_player_index(game_command_playerid), coord);
gCommandPosition.x = x;
gCommandPosition.y = y;
gCommandPosition.z = z;
if (waterHeightChanged)
{
audio_play_sound_at_location(SOUND_LAYING_OUT_WATER, x, y, z);
}
}
// Force ride construction to recheck area
_currentTrackSelectionFlags |= TRACK_SELECTION_FLAG_RECHECK;
return cost;
}
money32 lower_water(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint8_t flags)
{
money32 cost = 0;
bool waterHeightChanged = false;
uint8_t min_height = 0;
x0 = std::max(x0, (int16_t)32);
y0 = std::max(y0, (int16_t)32);
x1 = std::min(x1, gMapSizeMaxXY);
y1 = std::min(y1, gMapSizeMaxXY);
for (int32_t yi = y0; yi <= y1; yi += 32)
{
for (int32_t xi = x0; xi <= x1; xi += 32)
{
TileElement* tile_element = map_get_surface_element_at({ xi, yi });
if (tile_element != nullptr)
{
uint8_t height = tile_element->AsSurface()->GetWaterHeight();
if (height != 0)
{
height *= 2;
if (height > min_height)
min_height = height;
}
}
}
}
for (int32_t yi = y0; yi <= y1; yi += 32)
{
for (int32_t xi = x0; xi <= x1; xi += 32)
{
TileElement* tile_element = map_get_surface_element_at({ xi, yi });
if (tile_element != nullptr)
{
uint8_t height = tile_element->AsSurface()->GetWaterHeight();
if (height != 0)
{
height *= 2;
if (height < min_height)
continue;
height -= 2;
auto waterSetHeightAction = WaterSetHeightAction({ xi, yi }, height);
waterSetHeightAction.SetFlags(flags);
auto res = flags & GAME_COMMAND_FLAG_APPLY ? GameActions::ExecuteNested(&waterSetHeightAction)
: GameActions::QueryNested(&waterSetHeightAction);
if (res->Error != GA_ERROR::OK)
{
gGameCommandErrorText = res->ErrorMessage;
// set gCommonFormatArguments to res->ErrorArgs
return MONEY32_UNDEFINED;
}
cost += res->Cost;
waterHeightChanged = true;
}
}
}
}
if (flags & GAME_COMMAND_FLAG_APPLY)
{
int32_t x = ((x0 + x1) / 2) + 16;
int32_t y = ((y0 + y1) / 2) + 16;
int32_t z = tile_element_height(x, y);
int16_t water_height_z = z >> 16;
int16_t base_height_z = z;
z = water_height_z;
if (z == 0)
z = base_height_z;
LocationXYZ16 coord;
coord.x = x;
coord.y = y;
coord.z = z;
network_set_player_last_action_coord(network_get_player_index(game_command_playerid), coord);
gCommandPosition.x = x;
gCommandPosition.y = y;
gCommandPosition.z = z;
if (waterHeightChanged)
{
audio_play_sound_at_location(SOUND_LAYING_OUT_WATER, x, y, z);
}
}
// Force ride construction to recheck area
_currentTrackSelectionFlags |= TRACK_SELECTION_FLAG_RECHECK;
return cost;
}
/**
*
* rct2: 0x0068C542
*/
void game_command_raise_land(
int32_t* eax, int32_t* ebx, int32_t* ecx, int32_t* edx, [[maybe_unused]] int32_t* esi, int32_t* edi, int32_t* ebp)
{
*ebx = raise_land(
*ebx, *eax, *ecx, tile_element_height(*eax, *ecx), (int16_t)(*edx & 0xFFFF), (int16_t)(*ebp & 0xFFFF), *edx >> 16,
*ebp >> 16, *edi & 0xFFFF);
}
/**
*
* rct2: 0x0068C6D1
*/
void game_command_lower_land(
int32_t* eax, int32_t* ebx, int32_t* ecx, int32_t* edx, [[maybe_unused]] int32_t* esi, int32_t* edi, int32_t* ebp)
{
*ebx = lower_land(
*ebx, *eax, *ecx, tile_element_height(*eax, *ecx), (int16_t)(*edx & 0xFFFF), (int16_t)(*ebp & 0xFFFF), *edx >> 16,
*ebp >> 16, *edi & 0xFFFF);
}
static money32 smooth_land_tile(
int32_t direction, uint8_t flags, int32_t x, int32_t y, TileElement* tileElement, bool raiseLand)
{
int32_t targetBaseZ = tileElement->base_height;
int32_t slope = tileElement->AsSurface()->GetSlope();
if (raiseLand)
{
slope = tile_element_raise_styles[direction][slope];
if (slope & SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT)
{
targetBaseZ += 2;
slope &= ~SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT;
}
}
else
{
slope = tile_element_lower_styles[direction][slope];
if (slope & SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT)
{
targetBaseZ -= 2;
slope &= ~SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT;
}
}
auto landSetHeightAction = LandSetHeightAction({ x, y }, targetBaseZ, slope);
landSetHeightAction.SetFlags(flags);
auto res = (flags & GAME_COMMAND_FLAG_APPLY) ? GameActions::ExecuteNested(&landSetHeightAction)
: GameActions::QueryNested(&landSetHeightAction);
if (res->Error == GA_ERROR::OK)
{
return res->Cost;
}
else
{
return MONEY32_UNDEFINED;
}
}
static money32 smooth_land_row_by_edge(
int32_t flags, int32_t x, int32_t y, int32_t expectedLandHeight1, int32_t expectedLandHeight2, int32_t stepX, int32_t stepY,
int32_t direction1, int32_t direction2, int32_t checkDirection1, int32_t checkDirection2, bool raiseLand)
{
uint8_t shouldContinue = 0xF;
int32_t landChangePerTile = raiseLand ? -2 : 2;
TileElement *tileElement, *nextTileElement;
money32 totalCost = 0;
// check if we need to start at all
if (!map_is_location_valid({ x, y }) || !map_is_location_valid({ x + stepX, y + stepY }))
{
return 0;
}
tileElement = map_get_surface_element_at({ x, y });
nextTileElement = map_get_surface_element_at({ x + stepX, y + stepY });
if (tileElement == nullptr || nextTileElement == nullptr)
{
return 0;
}
if (tile_element_get_corner_height(tileElement, checkDirection1) != expectedLandHeight1 + (raiseLand ? -2 : 2))
{
shouldContinue &= ~0x1;
}
if (tile_element_get_corner_height(tileElement, checkDirection2) != expectedLandHeight2 + (raiseLand ? -2 : 2))
{
shouldContinue &= ~0x2;
}
if (tile_element_get_corner_height(tileElement, checkDirection1)
!= tile_element_get_corner_height(nextTileElement, direction1))
{
shouldContinue &= ~0x1;
}
if (tile_element_get_corner_height(tileElement, checkDirection2)
!= tile_element_get_corner_height(nextTileElement, direction2))
{
shouldContinue &= ~0x2;
}
while ((shouldContinue & 0x3) != 0)
{
shouldContinue = ((shouldContinue << 2) | 0x3) & shouldContinue;
x += stepX;
y += stepY;
// check if we need to continue after raising the current tile
// this needs to be checked before the tile is changed
if (!map_is_location_valid({ x + stepX, y + stepY }))
{
shouldContinue &= ~0x3;
}
else
{
tileElement = nextTileElement;
nextTileElement = map_get_surface_element_at({ x + stepX, y + stepY });
if (nextTileElement == nullptr)
{
shouldContinue &= ~0x3;
}
if (tile_element_get_corner_height(tileElement, direction1) + landChangePerTile
!= tile_element_get_corner_height(tileElement, checkDirection1))
{
shouldContinue &= ~0x1;
}
if (tile_element_get_corner_height(tileElement, direction2) + landChangePerTile
!= tile_element_get_corner_height(tileElement, checkDirection2))
{
shouldContinue &= ~0x2;
}
if ((shouldContinue & 0x1)
&& tile_element_get_corner_height(tileElement, checkDirection1)
!= tile_element_get_corner_height(nextTileElement, direction1))
{
shouldContinue &= ~0x1;
}
if ((shouldContinue & 0x2)
&& tile_element_get_corner_height(tileElement, checkDirection2)
!= tile_element_get_corner_height(nextTileElement, direction2))
{
shouldContinue &= ~0x2;
}
}
expectedLandHeight1 += landChangePerTile;
// change land of current tile
int32_t targetBaseZ = tileElement->base_height;
int32_t slope = tileElement->AsSurface()->GetSlope();
int32_t oldSlope = slope;
if (raiseLand)
{
if (shouldContinue & 0x4)
{
slope = tile_element_raise_styles[direction1][slope];
if (slope & SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT)
{
targetBaseZ += 2;
slope &= ~SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT;
}
}
if ((shouldContinue & 0x8)
&& map_get_corner_height(tileElement->base_height, oldSlope, direction2)
== map_get_corner_height(targetBaseZ, slope, direction2))
{
slope = tile_element_raise_styles[direction2][slope];
if (slope & SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT)
{
targetBaseZ += 2;
slope &= ~SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT;
}
}
}
else
{
if (shouldContinue & 0x4)
{
slope = tile_element_lower_styles[direction1][slope];
if (slope & SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT)
{
targetBaseZ -= 2;
slope &= ~SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT;
}
}
if ((shouldContinue & 0x8)
&& map_get_corner_height(tileElement->base_height, oldSlope, direction2)
== map_get_corner_height(targetBaseZ, slope, direction2))
{
slope = tile_element_lower_styles[direction2][slope];
if (slope & SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT)
{
targetBaseZ -= 2;
slope &= ~SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT;
}
}
}
auto landSetHeightAction = LandSetHeightAction({ x, y }, targetBaseZ, slope);
landSetHeightAction.SetFlags(flags);
auto res = (flags & GAME_COMMAND_FLAG_APPLY) ? GameActions::ExecuteNested(&landSetHeightAction)
: GameActions::QueryNested(&landSetHeightAction);
if (res->Error == GA_ERROR::OK)
{
totalCost += res->Cost;
}
}
return totalCost;
}
static money32 smooth_land_row_by_corner(
int32_t flags, int32_t x, int32_t y, int32_t expectedLandHeight, int32_t stepX, int32_t stepY, int32_t direction,
int32_t checkDirection, bool raiseLand)
{
bool shouldContinue = true;
TileElement *tileElement, *nextTileElement;
money32 totalCost = 0;
money32 result;
int32_t landChangePerTile;
if (stepX == 0 || stepY == 0)
{
landChangePerTile = raiseLand ? -2 : 2;
}
else
{
landChangePerTile = raiseLand ? -4 : 4;
}
// check if we need to start at all
if (!map_is_location_valid({ x, y }) || !map_is_location_valid({ x + stepX, y + stepY }))
{
return 0;
}
tileElement = map_get_surface_element_at({ x, y });
nextTileElement = map_get_surface_element_at((x + stepX) >> 5, (y + stepY) >> 5);
if (tileElement == nullptr || nextTileElement == nullptr)
{
return 0;
}
if (tile_element_get_corner_height(tileElement, checkDirection) != expectedLandHeight + (raiseLand ? -2 : 2))
{
return 0;
}
if (tile_element_get_corner_height(tileElement, checkDirection)
!= tile_element_get_corner_height(nextTileElement, direction))
{
return 0;
}
while (shouldContinue)
{
x += stepX;
y += stepY;
// check if we need to continue after raising the current tile
// this needs to be checked before the tile is changed
if (!map_is_location_valid({ x + stepX, y + stepY }))
{
shouldContinue = false;
}
else
{
tileElement = nextTileElement;
nextTileElement = map_get_surface_element_at((x + stepX) >> 5, (y + stepY) >> 5);
if (nextTileElement == nullptr)
{
shouldContinue = false;
}
if (tile_element_get_corner_height(tileElement, direction) + landChangePerTile
!= tile_element_get_corner_height(tileElement, checkDirection))
{
shouldContinue = false;
}
if (shouldContinue
&& tile_element_get_corner_height(tileElement, checkDirection)
!= tile_element_get_corner_height(nextTileElement, direction))
{
shouldContinue = false;
}
}
if (stepX * stepY != 0)
{
totalCost += smooth_land_row_by_corner(
flags, x, y, expectedLandHeight + (landChangePerTile / 2), 0, stepY, direction, checkDirection ^ 3, raiseLand);
totalCost += smooth_land_row_by_corner(
flags, x, y, expectedLandHeight + (landChangePerTile / 2), stepX, 0, direction, checkDirection ^ 1, raiseLand);
}
expectedLandHeight += landChangePerTile;
// change land of current tile
result = smooth_land_tile(direction, flags, x, y, tileElement, raiseLand);
if (result != MONEY32_UNDEFINED)
{
totalCost += result;
}
}
return totalCost;
}
static money32 smooth_land(
int32_t flags, int32_t centreX, int32_t centreY, int32_t mapLeft, int32_t mapTop, int32_t mapRight, int32_t mapBottom,
int32_t command)
{
// break up information in command
const bool raiseLand = command < 0x7FFF;
const int32_t selectionType = command & 0x7FFF;
const int32_t heightOffset = raiseLand ? 2 : -2;
// Cap bounds to map
mapLeft = std::max(mapLeft, 32);
mapTop = std::max(mapTop, 32);
mapRight = std::clamp(mapRight, 0, (MAXIMUM_MAP_SIZE_TECHNICAL - 1) * 32);
mapBottom = std::clamp(mapBottom, 0, (MAXIMUM_MAP_SIZE_TECHNICAL - 1) * 32);
// Play sound (only once)
int32_t centreZ = tile_element_height(centreX, centreY);
if ((flags & GAME_COMMAND_FLAG_APPLY) && gGameCommandNestLevel == 1)
{
audio_play_sound_at_location(SOUND_PLACE_ITEM, centreX, centreY, centreZ);
}
if (flags & GAME_COMMAND_FLAG_APPLY)
{
LocationXYZ16 coord;
coord.x = centreX + 16;
coord.y = centreY + 16;
coord.z = tile_element_height(coord.x, coord.y);
network_set_player_last_action_coord(network_get_player_index(game_command_playerid), coord);
}
// Do the smoothing
money32 totalCost = 0;
switch (selectionType)
{
case MAP_SELECT_TYPE_FULL:
{
uint8_t minHeight = heightOffset + map_get_lowest_land_height(mapLeft, mapRight, mapTop, mapBottom);
uint8_t maxHeight = heightOffset + map_get_highest_land_height(mapLeft, mapRight, mapTop, mapBottom);
// Smooth the 4 corners
{ // top-left
TileElement* tileElement = map_get_surface_element_at({ mapLeft, mapTop });
int32_t z = std::clamp((uint8_t)tile_element_get_corner_height(tileElement, 2), minHeight, maxHeight);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, -32, -32, 0, 2, raiseLand);
}
{ // bottom-left
TileElement* tileElement = map_get_surface_element_at(mapLeft >> 5, mapBottom >> 5);
int32_t z = std::clamp((uint8_t)tile_element_get_corner_height(tileElement, 3), minHeight, maxHeight);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapBottom, z, -32, 32, 1, 3, raiseLand);
}
{ // bottom-right
TileElement* tileElement = map_get_surface_element_at(mapRight >> 5, mapBottom >> 5);
int32_t z = std::clamp((uint8_t)tile_element_get_corner_height(tileElement, 0), minHeight, maxHeight);
totalCost += smooth_land_row_by_corner(flags, mapRight, mapBottom, z, 32, 32, 2, 0, raiseLand);
}
{ // top-right
TileElement* tileElement = map_get_surface_element_at(mapRight >> 5, mapTop >> 5);
int32_t z = std::clamp((uint8_t)tile_element_get_corner_height(tileElement, 1), minHeight, maxHeight);
totalCost += smooth_land_row_by_corner(flags, mapRight, mapTop, z, 32, -32, 3, 1, raiseLand);
}
// Smooth the edges
TileElement* tileElement = nullptr;
int32_t z1, z2;
for (int32_t y = mapTop; y <= mapBottom; y += 32)
{
tileElement = map_get_surface_element_at({ mapLeft, y });
z1 = std::clamp((uint8_t)tile_element_get_corner_height(tileElement, 3), minHeight, maxHeight);
z2 = std::clamp((uint8_t)tile_element_get_corner_height(tileElement, 2), minHeight, maxHeight);
totalCost += smooth_land_row_by_edge(flags, mapLeft, y, z1, z2, -32, 0, 0, 1, 3, 2, raiseLand);
tileElement = map_get_surface_element_at({ mapRight, y });
z1 = std::clamp((uint8_t)tile_element_get_corner_height(tileElement, 1), minHeight, maxHeight);
z2 = std::clamp((uint8_t)tile_element_get_corner_height(tileElement, 0), minHeight, maxHeight);
totalCost += smooth_land_row_by_edge(flags, mapRight, y, z1, z2, 32, 0, 2, 3, 1, 0, raiseLand);
}
for (int32_t x = mapLeft; x <= mapRight; x += 32)
{
tileElement = map_get_surface_element_at({ x, mapTop });
z1 = std::clamp((uint8_t)tile_element_get_corner_height(tileElement, 1), minHeight, maxHeight);
z2 = std::clamp((uint8_t)tile_element_get_corner_height(tileElement, 2), minHeight, maxHeight);
totalCost += smooth_land_row_by_edge(flags, x, mapTop, z1, z2, 0, -32, 0, 3, 1, 2, raiseLand);
tileElement = map_get_surface_element_at({ x, mapBottom });
z1 = std::clamp((uint8_t)tile_element_get_corner_height(tileElement, 0), minHeight, maxHeight);
z2 = std::clamp((uint8_t)tile_element_get_corner_height(tileElement, 3), minHeight, maxHeight);
totalCost += smooth_land_row_by_edge(flags, x, mapBottom, z1, z2, 0, 32, 1, 2, 0, 3, raiseLand);
}
break;
}
case MAP_SELECT_TYPE_CORNER_0:
case MAP_SELECT_TYPE_CORNER_1:
case MAP_SELECT_TYPE_CORNER_2:
case MAP_SELECT_TYPE_CORNER_3:
{
TileElement* tileElement = map_get_surface_element_at({ mapLeft, mapTop });
uint8_t newBaseZ = tileElement->base_height;
uint8_t newSlope = tileElement->AsSurface()->GetSlope();
if (raiseLand)
{
newSlope = tile_element_raise_styles[selectionType][newSlope];
}
else
{
newSlope = tile_element_lower_styles[selectionType][newSlope];
}
if (newSlope & SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT)
{
newBaseZ += heightOffset;
newSlope &= ~SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT;
}
// Smooth the corners
int32_t z = map_get_corner_height(newBaseZ, newSlope, 2);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, -32, -32, 0, 2, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 0);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 32, 32, 2, 0, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 3);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, -32, 32, 1, 3, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 1);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 32, -32, 3, 1, raiseLand);
// Smooth the edges
switch (selectionType)
{
case MAP_SELECT_TYPE_CORNER_0:
z = map_get_corner_height(newBaseZ, newSlope, 0);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 32, 0, 3, 0, raiseLand);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 0, 32, 1, 0, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 3);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, -32, 0, 0, 3, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 1);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 0, -32, 0, 1, raiseLand);
break;
case MAP_SELECT_TYPE_CORNER_1:
z = map_get_corner_height(newBaseZ, newSlope, 1);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 32, 0, 2, 1, raiseLand);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 0, -32, 0, 1, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 2);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, -32, 0, 1, 2, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 0);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 0, 32, 1, 0, raiseLand);
break;
case MAP_SELECT_TYPE_CORNER_2:
z = map_get_corner_height(newBaseZ, newSlope, 2);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, -32, 0, 1, 2, raiseLand);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 0, -32, 3, 2, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 1);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 32, 0, 2, 1, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 3);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 0, 32, 2, 3, raiseLand);
break;
case MAP_SELECT_TYPE_CORNER_3:
z = map_get_corner_height(newBaseZ, newSlope, 3);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, -32, 0, 0, 3, raiseLand);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 0, 32, 2, 3, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 0);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 32, 0, 3, 0, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 2);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 0, -32, 3, 2, raiseLand);
break;
}
break;
}
case MAP_SELECT_TYPE_EDGE_0:
case MAP_SELECT_TYPE_EDGE_1:
case MAP_SELECT_TYPE_EDGE_2:
case MAP_SELECT_TYPE_EDGE_3:
{
// TODO: Handle smoothing by edge
// Get the two corners to raise
TileElement* surfaceElement = map_get_surface_element_at({ mapLeft, mapTop });
uint8_t newBaseZ = surfaceElement->base_height;
uint8_t oldSlope = surfaceElement->AsSurface()->GetSlope();
uint8_t newSlope = oldSlope;
int32_t rowIndex = selectionType - (MAP_SELECT_TYPE_EDGE_0 - MAP_SELECT_TYPE_FULL - 1);
if (raiseLand)
{
newSlope = tile_element_raise_styles[rowIndex][oldSlope];
}
else
{
newSlope = tile_element_lower_styles[rowIndex][oldSlope];
}
const bool changeBaseHeight = newSlope & SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT;
if (changeBaseHeight)
{
newBaseZ += heightOffset;
newSlope &= ~SURFACE_STYLE_FLAG_RAISE_OR_LOWER_BASE_HEIGHT;
}
const uint8_t edge = selectionType - MAP_SELECT_TYPE_EDGE_0;
// Table with corners for each edge selection. The first two are the selected corners, the latter two are the
// opposites
static constexpr uint8_t cornerIndices[][4] = {
{ 2, 3, 1, 0 }, // MAP_SELECT_TYPE_EDGE_0
{ 3, 0, 2, 1 }, // MAP_SELECT_TYPE_EDGE_1
{ 0, 1, 3, 2 }, // MAP_SELECT_TYPE_EDGE_2
{ 1, 2, 0, 3 }, // MAP_SELECT_TYPE_EDGE_3
};
// Big coordinate offsets for the neigbouring tile for the given edge selection
static constexpr sLocationXY8 stepOffsets[] = {
{ -32, 0 },
{ 0, 32 },
{ 32, 0 },
{ 0, -32 },
};
// Smooth higher and lower edges
uint8_t c1 = cornerIndices[edge][0];
uint8_t c2 = cornerIndices[edge][1];
uint8_t c3 = cornerIndices[edge][2];
uint8_t c4 = cornerIndices[edge][3];
uint8_t z1 = map_get_corner_height(newBaseZ, newSlope, c1);
uint8_t z2 = map_get_corner_height(newBaseZ, newSlope, c2);
uint8_t z3 = map_get_corner_height(newBaseZ, newSlope, c3);
uint8_t z4 = map_get_corner_height(newBaseZ, newSlope, c4);
// Smooth the edge at the top of the new slope
totalCost += smooth_land_row_by_edge(
flags, mapLeft, mapTop, z1, z2, stepOffsets[edge].x, stepOffsets[edge].y, c3, c4, c1, c2, raiseLand);
// Smooth the edge at the bottom of the new slope
totalCost += smooth_land_row_by_edge(
flags, mapLeft, mapTop, z3, z4, -stepOffsets[edge].x, -stepOffsets[edge].y, c1, c2, c3, c4, raiseLand);
// Smooth corners
totalCost += smooth_land_row_by_corner(
flags, mapLeft, mapTop, z1, -stepOffsets[edge].y, stepOffsets[edge].x, c2, c1, raiseLand);
totalCost += smooth_land_row_by_corner(
flags, mapLeft, mapTop, z2, stepOffsets[edge].y, -stepOffsets[edge].x, c1, c2, raiseLand);
int32_t z = map_get_corner_height(newBaseZ, newSlope, 2);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, -32, -32, 0, 2, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 0);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 32, 32, 2, 0, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 3);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, -32, 32, 1, 3, raiseLand);
z = map_get_corner_height(newBaseZ, newSlope, 1);
totalCost += smooth_land_row_by_corner(flags, mapLeft, mapTop, z, 32, -32, 3, 1, raiseLand);
break;
}
} // switch selectionType
// Raise / lower the land tool selection area
int32_t commandType = raiseLand ? GAME_COMMAND_RAISE_LAND : GAME_COMMAND_LOWER_LAND;
int32_t mapLeftRight = mapLeft | (mapRight << 16);
int32_t mapTopBottom = mapTop | (mapBottom << 16);
money32 cost = game_do_command(centreX, flags, centreY, mapLeftRight, commandType, command & 0x7FFF, mapTopBottom);
if (cost == MONEY32_UNDEFINED)
{
return MONEY32_UNDEFINED;
}
totalCost += cost;
gCommandExpenditureType = RCT_EXPENDITURE_TYPE_LANDSCAPING;
gCommandPosition.x = centreX;
gCommandPosition.y = centreY;
gCommandPosition.z = centreZ;
return totalCost;
}
/**
*
* rct2: 0x0068BC01
*/
void game_command_smooth_land(
int32_t* eax, int32_t* ebx, int32_t* ecx, int32_t* edx, [[maybe_unused]] int32_t* esi, int32_t* edi, int32_t* ebp)
{
int32_t flags = *ebx & 0xFF;
int32_t centreX = *eax & 0xFFFF;
int32_t centreY = *ecx & 0xFFFF;
int32_t mapLeft = (int16_t)(*edx & 0xFFFF);
int32_t mapTop = (int16_t)(*ebp & 0xFFFF);
int32_t mapRight = (int16_t)(*edx >> 16);
int32_t mapBottom = (int16_t)(*ebp >> 16);
int32_t command = *edi;
*ebx = smooth_land(flags, centreX, centreY, mapLeft, mapTop, mapRight, mapBottom, command);
}
/**
*
* rct2: 0x006E66A0
*/
void game_command_raise_water(
int32_t* eax, int32_t* ebx, int32_t* ecx, [[maybe_unused]] int32_t* edx, [[maybe_unused]] int32_t* esi, int32_t* edi,
int32_t* ebp)
{
*ebx = raise_water(
(int16_t)(*eax & 0xFFFF), (int16_t)(*ecx & 0xFFFF), (int16_t)(*edi & 0xFFFF), (int16_t)(*ebp & 0xFFFF), (uint8_t)*ebx);
}
/**
*
* rct2: 0x006E6878
*/
void game_command_lower_water(
int32_t* eax, int32_t* ebx, int32_t* ecx, [[maybe_unused]] int32_t* edx, [[maybe_unused]] int32_t* esi, int32_t* edi,
int32_t* ebp)
{
*ebx = lower_water(
(int16_t)(*eax & 0xFFFF), (int16_t)(*ecx & 0xFFFF), (int16_t)(*edi & 0xFFFF), (int16_t)(*ebp & 0xFFFF), (uint8_t)*ebx);
}
/**
*
* rct2: 0x006E650F
*/
void game_command_set_water_height(
int32_t* eax, int32_t* ebx, int32_t* ecx, int32_t* edx, [[maybe_unused]] int32_t* esi, [[maybe_unused]] int32_t* edi,
[[maybe_unused]] int32_t* ebp)
{
int32_t x = *eax;
int32_t y = *ecx;
uint8_t base_height = *edx;
gCommandExpenditureType = RCT_EXPENDITURE_TYPE_LANDSCAPING;
gCommandPosition.x = x + 16;
gCommandPosition.y = y + 16;
gCommandPosition.z = base_height * 8;
if (game_is_paused() && !gCheatsBuildInPauseMode)
{
gGameCommandErrorText = STR_CONSTRUCTION_NOT_POSSIBLE_WHILE_GAME_IS_PAUSED;
*ebx = MONEY32_UNDEFINED;
return;
}
if (!(gScreenFlags & SCREEN_FLAGS_SCENARIO_EDITOR) && !gCheatsSandboxMode
&& gParkFlags & PARK_FLAGS_FORBID_LANDSCAPE_CHANGES)
{
gGameCommandErrorText = STR_FORBIDDEN_BY_THE_LOCAL_AUTHORITY;
*ebx = MONEY32_UNDEFINED;
return;
}
if (base_height < 2)
{
gGameCommandErrorText = STR_TOO_LOW;
*ebx = MONEY32_UNDEFINED;
return;
}
if (base_height >= 58)
{
gGameCommandErrorText = STR_TOO_HIGH;
*ebx = MONEY32_UNDEFINED;
return;
}
if (x >= gMapSizeUnits || y >= gMapSizeUnits)
{
gGameCommandErrorText = STR_OFF_EDGE_OF_MAP;
*ebx = MONEY32_UNDEFINED;
return;
}
if (!(gScreenFlags & SCREEN_FLAGS_SCENARIO_EDITOR) && !gCheatsSandboxMode && !map_is_location_in_park({ x, y }))
{
*ebx = MONEY32_UNDEFINED;
return;
}
if (*ebx & GAME_COMMAND_FLAG_APPLY)
{
int32_t element_height = tile_element_height(x, y);
footpath_remove_litter(x, y, element_height);
if (!gCheatsDisableClearanceChecks)
wall_remove_at_z(x, y, element_height);
}
TileElement* tile_element = map_get_surface_element_at({ x, y });
int32_t zHigh = tile_element->base_height;
int32_t zLow = base_height;
if (tile_element->AsSurface()->GetWaterHeight() > 0)
{
zHigh = tile_element->AsSurface()->GetWaterHeight() * 2;
}
if (zLow > zHigh)
{
int32_t temp = zHigh;
zHigh = zLow;
zLow = temp;
}
if (map_can_construct_at(x, y, zLow, zHigh, { 0b1111, 0b1111 }))
{
if (tile_element->AsSurface()->HasTrackThatNeedsWater())
{
gGameCommandErrorText = 0;
*ebx = MONEY32_UNDEFINED;
return;
}
if (*ebx & GAME_COMMAND_FLAG_APPLY)
{
if (base_height > tile_element->base_height)
{
tile_element->AsSurface()->SetWaterHeight(base_height / 2);
}
else
{
tile_element->AsSurface()->SetWaterHeight(0);
}
map_invalidate_tile_full(x, y);
}
*ebx = 250;
if (gParkFlags & PARK_FLAGS_NO_MONEY)
{
*ebx = 0;
}
}
else
{
*ebx = MONEY32_UNDEFINED;
}
}
bool map_is_location_at_edge(int32_t x, int32_t y)
{
return x < 32 || y < 32 || x >= ((MAXIMUM_MAP_SIZE_TECHNICAL - 1) * 32) || y >= ((MAXIMUM_MAP_SIZE_TECHNICAL - 1) * 32);
}
/**
*
* rct2: 0x006B893C
*/
void game_command_place_large_scenery(
int32_t* eax, int32_t* ebx, int32_t* ecx, int32_t* edx, [[maybe_unused]] int32_t* esi, int32_t* edi, int32_t* ebp)
{
gCommandExpenditureType = RCT_EXPENDITURE_TYPE_LANDSCAPING;
int32_t x = (int16_t)*eax;
int32_t y = (int16_t)*ecx;
int32_t z = (int16_t)*ebp;
colour_t colour1 = *edx & TILE_ELEMENT_COLOUR_MASK;
colour_t colour2 = (*edx >> 8) & TILE_ELEMENT_COLOUR_MASK;
uint8_t flags = *ebx;
uint8_t rotation = *ebx >> 8;
uint8_t entry_index = *edi;
int32_t base_height = tile_element_height(x, y);
gCommandPosition.x = x + 16;
gCommandPosition.y = y + 16;
gCommandPosition.z = base_height;
gSceneryGroundFlags = 0;
BannerIndex banner_id = BANNER_INDEX_NULL;
money32 supportsCost = 0;
if (game_is_paused() && !gCheatsBuildInPauseMode)
{
gGameCommandErrorText = STR_CONSTRUCTION_NOT_POSSIBLE_WHILE_GAME_IS_PAUSED;
*ebx = MONEY32_UNDEFINED;
return;
}
if (entry_index >= 128)
{
log_warning("Invalid game command for scenery placement, entry_index = %u", entry_index);
*ebx = MONEY32_UNDEFINED;
return;
}
rct_scenery_entry* scenery_entry = get_large_scenery_entry(entry_index);
if (scenery_entry == nullptr)
{
log_warning("Invalid game command for scenery placement, entry_index = %u", entry_index);
*ebx = MONEY32_UNDEFINED;
return;
}
if (scenery_entry->large_scenery.scrolling_mode != SCROLLING_MODE_NONE)
{
banner_id = create_new_banner(flags);
if (banner_id == BANNER_INDEX_NULL)
{
*ebx = MONEY32_UNDEFINED;
return;
}
if (flags & GAME_COMMAND_FLAG_APPLY)
{
rct_banner* banner = &gBanners[banner_id];
banner->flags |= BANNER_FLAG_IS_LARGE_SCENERY;
banner->type = 0;
banner->x = x / 32;
banner->y = y / 32;
ride_id_t rideIndex = banner_get_closest_ride_index(x, y, z);
if (rideIndex != RIDE_ID_NULL)
{
banner->ride_index = rideIndex;
banner->flags |= BANNER_FLAG_LINKED_TO_RIDE;
}
}
}
uint32_t num_elements = 0;
int16_t maxHeight = -1;
for (rct_large_scenery_tile* tile = scenery_entry->large_scenery.tiles; tile->x_offset != -1; tile++)
{
num_elements++;
LocationXY16 curTile = { tile->x_offset, tile->y_offset };
rotate_map_coordinates(&curTile.x, &curTile.y, rotation);
curTile.x += x;
curTile.y += y;
if (curTile.x >= 0x1FFF || curTile.y >= 0x1FFF || curTile.x < 0 || curTile.y < 0)
{
continue;
}
TileElement* tile_element = map_get_surface_element_at({ curTile.x, curTile.y });
if (tile_element != nullptr)
{
int32_t height = tile_element->base_height * 8;
int32_t slope = tile_element->AsSurface()->GetSlope();
if (slope & 0xF)
{
height += 16;
if (slope & 0x10)
{
height += 16;
}
}
if (height > maxHeight)
{
maxHeight = height;
}
}
}
if (z != 0)
{
maxHeight = z;
}
if (!map_check_free_elements_and_reorganise(num_elements))
{
*ebx = MONEY32_UNDEFINED;
return;
}
gCommandPosition.z = maxHeight;
uint8_t tile_num = 0;
for (rct_large_scenery_tile* tile = scenery_entry->large_scenery.tiles; tile->x_offset != -1; tile++, tile_num++)
{
LocationXY16 curTile = { tile->x_offset, tile->y_offset };
rotate_map_coordinates(&curTile.x, &curTile.y, rotation);
curTile.x += x;
curTile.y += y;
int32_t zLow = (tile->z_offset + maxHeight) / 8;
int32_t zHigh = (tile->z_clearance / 8) + zLow;
QuarterTile quarterTile = QuarterTile{ static_cast<uint8_t>(tile->flags >> 12), 0 }.Rotate(rotation);
if (!map_can_construct_with_clear_at(
curTile.x, curTile.y, zLow, zHigh, &map_place_scenery_clear_func, quarterTile, flags, &supportsCost,
CREATE_CROSSING_MODE_NONE))
{
*ebx = MONEY32_UNDEFINED;
return;
}
if ((gMapGroundFlags & ELEMENT_IS_UNDERWATER) || (gMapGroundFlags & ELEMENT_IS_UNDERGROUND))
{
*ebx = MONEY32_UNDEFINED;
return;
}
int32_t b = gMapGroundFlags & (ELEMENT_IS_ABOVE_GROUND | ELEMENT_IS_UNDERGROUND);
if (!gCheatsDisableClearanceChecks)
{
if (gSceneryGroundFlags && !(gSceneryGroundFlags & b))
{
gGameCommandErrorText = STR_CANT_BUILD_PARTLY_ABOVE_AND_PARTLY_BELOW_GROUND;
*ebx = MONEY32_UNDEFINED;
return;
}
}
gSceneryGroundFlags = b;
if (curTile.x >= gMapSizeUnits || curTile.y >= gMapSizeUnits)
{
gGameCommandErrorText = STR_OFF_EDGE_OF_MAP;
*ebx = MONEY32_UNDEFINED;
return;
}
if (!(gScreenFlags & SCREEN_FLAGS_SCENARIO_EDITOR) && !map_is_location_owned(curTile.x, curTile.y, zLow * 8)
&& !gCheatsSandboxMode)
{
*ebx = MONEY32_UNDEFINED;
return;
}
if (flags & GAME_COMMAND_FLAG_APPLY)
{
if (!(flags & GAME_COMMAND_FLAG_GHOST))
{
footpath_remove_litter(curTile.x, curTile.y, zLow * 8);
if (!gCheatsDisableClearanceChecks)
{
wall_remove_at(curTile.x, curTile.y, zLow * 8, zHigh * 8);
}
}
if (gGameCommandNestLevel == 1 && !(*ebx & GAME_COMMAND_FLAG_GHOST))
{
LocationXYZ16 coord;
coord.x = x + 16;
coord.y = y + 16;
coord.z = tile_element_height(coord.x, coord.y);
network_set_player_last_action_coord(network_get_player_index(game_command_playerid), coord);
}
TileElement* new_tile_element = tile_element_insert(
curTile.x / 32, curTile.y / 32, zLow, quarterTile.GetBaseQuarterOccupied());
assert(new_tile_element != nullptr);
map_animation_create(MAP_ANIMATION_TYPE_LARGE_SCENERY, curTile.x, curTile.y, zLow);
new_tile_element->clearance_height = zHigh;
new_tile_element->SetType(TILE_ELEMENT_TYPE_LARGE_SCENERY);
new_tile_element->SetDirection(rotation);
auto newSceneryElement = new_tile_element->AsLargeScenery();
newSceneryElement->SetEntryIndex(entry_index);
newSceneryElement->SetSequenceIndex(tile_num);
newSceneryElement->SetPrimaryColour(colour1);
newSceneryElement->SetSecondaryColour(colour2);
if (banner_id != BANNER_INDEX_NULL)
{
newSceneryElement->SetBannerIndex(banner_id);
}
if (flags & GAME_COMMAND_FLAG_GHOST)
{
new_tile_element->SetGhost(true);
}
if (tile_num == 0)
{
gSceneryTileElement = new_tile_element;
}
map_invalidate_tile_full(curTile.x, curTile.y);
}
}
// Force ride construction to recheck area
_currentTrackSelectionFlags |= TRACK_SELECTION_FLAG_RECHECK;
*ebx = (scenery_entry->large_scenery.price * 10) + supportsCost;
if (gParkFlags & PARK_FLAGS_NO_MONEY)
{
*ebx = 0;
}
}
/**
*
* rct2: 0x0068B280
*/
void tile_element_remove(TileElement* tileElement)
{
// Replace Nth element by (N+1)th element.
// This loop will make tileElement point to the old last element position,
// after copy it to it's new position
if (!tileElement->IsLastForTile())
{
do
{
*tileElement = *(tileElement + 1);
} while (!(++tileElement)->IsLastForTile());
}
// Mark the latest element with the last element flag.
(tileElement - 1)->flags |= TILE_ELEMENT_FLAG_LAST_TILE;
tileElement->base_height = 0xFF;
if ((tileElement + 1) == gNextFreeTileElement)
{
gNextFreeTileElement--;
}
}
/**
*
* rct2: 0x00675A8E
*/
void map_remove_all_rides()
{
tile_element_iterator it;
tile_element_iterator_begin(&it);
do
{
switch (it.element->GetType())
{
case TILE_ELEMENT_TYPE_PATH:
if (it.element->AsPath()->IsQueue())
{
it.element->AsPath()->SetHasQueueBanner(false);
it.element->AsPath()->SetRideIndex(RIDE_ID_NULL);
}
break;
case TILE_ELEMENT_TYPE_ENTRANCE:
if (it.element->AsEntrance()->GetEntranceType() == ENTRANCE_TYPE_PARK_ENTRANCE)
break;
[[fallthrough]];
case TILE_ELEMENT_TYPE_TRACK:
footpath_queue_chain_reset();
footpath_remove_edges_at(it.x * 32, it.y * 32, it.element);
tile_element_remove(it.element);
tile_element_iterator_restart_for_tile(&it);
break;
}
} while (tile_element_iterator_next(&it));
}
/**
*
* rct2: 0x0068AB1B
*/
void map_invalidate_map_selection_tiles()
{
LocationXY16* position;
if (!(gMapSelectFlags & MAP_SELECT_FLAG_ENABLE_CONSTRUCT))
return;
for (position = gMapSelectionTiles; position->x != -1; position++)
map_invalidate_tile_full(position->x, position->y);
}
void map_get_bounding_box(
int32_t ax, int32_t ay, int32_t bx, int32_t by, int32_t* left, int32_t* top, int32_t* right, int32_t* bottom)
{
int32_t x, y;
x = ax;
y = ay;
uint32_t rotation = get_current_rotation();
translate_3d_to_2d(rotation, &x, &y);
*left = x;
*right = x;
*top = y;
*bottom = y;
x = bx;
y = ay;
translate_3d_to_2d(rotation, &x, &y);
if (x < *left)
*left = x;
if (x > *right)
*right = x;
if (y > *bottom)
*bottom = y;
if (y < *top)
*top = y;
x = bx;
y = by;
translate_3d_to_2d(rotation, &x, &y);
if (x < *left)
*left = x;
if (x > *right)
*right = x;
if (y > *bottom)
*bottom = y;
if (y < *top)
*top = y;
x = ax;
y = by;
translate_3d_to_2d(rotation, &x, &y);
if (x < *left)
*left = x;
if (x > *right)
*right = x;
if (y > *bottom)
*bottom = y;
if (y < *top)
*top = y;
}
/**
*
* rct2: 0x0068AAE1
*/
void map_invalidate_selection_rect()
{
int32_t x0, y0, x1, y1, left, right, top, bottom;
if (!(gMapSelectFlags & MAP_SELECT_FLAG_ENABLE))
return;
x0 = gMapSelectPositionA.x + 16;
y0 = gMapSelectPositionA.y + 16;
x1 = gMapSelectPositionB.x + 16;
y1 = gMapSelectPositionB.y + 16;
map_get_bounding_box(x0, y0, x1, y1, &left, &top, &right, &bottom);
left -= 32;
right += 32;
bottom += 32;
top -= 32 + 2080;
for (int32_t i = 0; i < MAX_VIEWPORT_COUNT; i++)
{
rct_viewport* viewport = &g_viewport_list[i];
if (viewport->width != 0)
{
viewport_invalidate(viewport, left, top, right, bottom);
}
}
}
/**
*
* rct2: 0x0068B111
*/
void map_reorganise_elements()
{
context_setcurrentcursor(CURSOR_ZZZ);
TileElement* new_tile_elements = (TileElement*)malloc(
3 * (MAXIMUM_MAP_SIZE_TECHNICAL * MAXIMUM_MAP_SIZE_TECHNICAL) * sizeof(TileElement));
TileElement* new_elements_pointer = new_tile_elements;
if (new_tile_elements == nullptr)
{
log_fatal("Unable to allocate memory for map elements.");
return;
}
uint32_t num_elements;
for (int32_t y = 0; y < MAXIMUM_MAP_SIZE_TECHNICAL; y++)
{
for (int32_t x = 0; x < MAXIMUM_MAP_SIZE_TECHNICAL; x++)
{
TileElement* startElement = map_get_first_element_at(x, y);
TileElement* endElement = startElement;
while (!(endElement++)->IsLastForTile())
;
num_elements = (uint32_t)(endElement - startElement);
std::memcpy(new_elements_pointer, startElement, num_elements * sizeof(TileElement));
new_elements_pointer += num_elements;
}
}
num_elements = (uint32_t)(new_elements_pointer - new_tile_elements);
std::memcpy(gTileElements, new_tile_elements, num_elements * sizeof(TileElement));
std::memset(
gTileElements + num_elements, 0,
(3 * (MAXIMUM_MAP_SIZE_TECHNICAL * MAXIMUM_MAP_SIZE_TECHNICAL) - num_elements) * sizeof(TileElement));
free(new_tile_elements);
map_update_tile_pointers();
}
/**
*
* rct2: 0x0068B044
* Returns true on space available for more elements
* Reorganises the map elements to check for space
*/
bool map_check_free_elements_and_reorganise(int32_t numElements)
{
if (numElements != 0)
{
auto tileElementEnd = &gTileElements[MAX_TILE_ELEMENTS];
// Check if is there is room for the required number of elements
auto newTileElementEnd = gNextFreeTileElement + numElements;
if (newTileElementEnd > tileElementEnd)
{
// Defragment the map element list
map_reorganise_elements();
// Check if there is any room again
newTileElementEnd = gNextFreeTileElement + numElements;
if (newTileElementEnd > tileElementEnd)
{
// Not enough spare elements left :'(
gGameCommandErrorText = STR_ERR_LANDSCAPE_DATA_AREA_FULL;
return false;
}
}
}
return true;
}
/**
*
* rct2: 0x0068B1F6
*/
TileElement* tile_element_insert(int32_t x, int32_t y, int32_t z, int32_t flags)
{
TileElement *originalTileElement, *newTileElement, *insertedElement;
if (!map_check_free_elements_and_reorganise(1))
{
log_error("Cannot insert new element");
return nullptr;
}
newTileElement = gNextFreeTileElement;
originalTileElement = gTileElementTilePointers[y * MAXIMUM_MAP_SIZE_TECHNICAL + x];
// Set tile index pointer to point to new element block
gTileElementTilePointers[y * MAXIMUM_MAP_SIZE_TECHNICAL + x] = newTileElement;
// Copy all elements that are below the insert height
while (z >= originalTileElement->base_height)
{
// Copy over map element
*newTileElement = *originalTileElement;
originalTileElement->base_height = 255;
originalTileElement++;
newTileElement++;
if ((newTileElement - 1)->flags & TILE_ELEMENT_FLAG_LAST_TILE)
{
// No more elements above the insert element
(newTileElement - 1)->flags &= ~TILE_ELEMENT_FLAG_LAST_TILE;
flags |= TILE_ELEMENT_FLAG_LAST_TILE;
break;
}
}
// Insert new map element
insertedElement = newTileElement;
newTileElement->type = 0;
newTileElement->base_height = z;
newTileElement->flags = flags;
newTileElement->clearance_height = z;
std::memset(&newTileElement->pad_04, 0, sizeof(newTileElement->pad_04));
newTileElement++;
// Insert rest of map elements above insert height
if (!(flags & TILE_ELEMENT_FLAG_LAST_TILE))
{
do
{
// Copy over map element
*newTileElement = *originalTileElement;
originalTileElement->base_height = 255;
originalTileElement++;
newTileElement++;
} while (!((newTileElement - 1)->IsLastForTile()));
}
gNextFreeTileElement = newTileElement;
return insertedElement;
}
/**
*
* rct2: 0x0068BB18
*/
void map_obstruction_set_error_text(TileElement* tileElement)
{
rct_string_id errorStringId;
Ride* ride;
rct_scenery_entry* sceneryEntry;
errorStringId = STR_OBJECT_IN_THE_WAY;
switch (tileElement->GetType())
{
case TILE_ELEMENT_TYPE_SURFACE:
errorStringId = STR_RAISE_OR_LOWER_LAND_FIRST;
break;
case TILE_ELEMENT_TYPE_PATH:
errorStringId = STR_FOOTPATH_IN_THE_WAY;
break;
case TILE_ELEMENT_TYPE_TRACK:
ride = get_ride(tileElement->AsTrack()->GetRideIndex());
errorStringId = STR_X_IN_THE_WAY;
set_format_arg(0, rct_string_id, ride->name);
set_format_arg(2, uint32_t, ride->name_arguments);
break;
case TILE_ELEMENT_TYPE_SMALL_SCENERY:
sceneryEntry = tileElement->AsSmallScenery()->GetEntry();
errorStringId = STR_X_IN_THE_WAY;
set_format_arg(0, rct_string_id, sceneryEntry->name);
break;
case TILE_ELEMENT_TYPE_ENTRANCE:
switch (tileElement->AsEntrance()->GetEntranceType())
{
case ENTRANCE_TYPE_RIDE_ENTRANCE:
errorStringId = STR_RIDE_ENTRANCE_IN_THE_WAY;
break;
case ENTRANCE_TYPE_RIDE_EXIT:
errorStringId = STR_RIDE_EXIT_IN_THE_WAY;
break;
case ENTRANCE_TYPE_PARK_ENTRANCE:
errorStringId = STR_PARK_ENTRANCE_IN_THE_WAY;
break;
}
break;
case TILE_ELEMENT_TYPE_WALL:
sceneryEntry = tileElement->AsWall()->GetEntry();
errorStringId = STR_X_IN_THE_WAY;
set_format_arg(0, rct_string_id, sceneryEntry->name);
break;
case TILE_ELEMENT_TYPE_LARGE_SCENERY:
sceneryEntry = tileElement->AsLargeScenery()->GetEntry();
errorStringId = STR_X_IN_THE_WAY;
set_format_arg(0, rct_string_id, sceneryEntry->name);
break;
}
gGameCommandErrorText = errorStringId;
}
/**
*
* rct2: 0x0068B932
* ax = x
* cx = y
* dl = zLow
* dh = zHigh
* ebp = clearFunc
* bl = bl
*/
bool map_can_construct_with_clear_at(
int32_t x, int32_t y, int32_t zLow, int32_t zHigh, CLEAR_FUNC clearFunc, QuarterTile bl, uint8_t flags, money32* price,
uint8_t crossingMode)
{
int32_t al, ah, bh, cl, ch, water_height;
al = ah = bh = cl = ch = water_height = 0;
uint8_t slope = 0;
gMapGroundFlags = ELEMENT_IS_ABOVE_GROUND;
bool canBuildCrossing = false;
if (x >= gMapSizeUnits || y >= gMapSizeUnits || x < 32 || y < 32)
{
gGameCommandErrorText = STR_OFF_EDGE_OF_MAP;
return false;
}
if (gCheatsDisableClearanceChecks)
{
return true;
}
TileElement* tileElement = map_get_first_element_at(x / 32, y / 32);
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_SURFACE)
{
if (zLow < tileElement->clearance_height && zHigh > tileElement->base_height && !(tileElement->IsGhost()))
{
if (tileElement->flags & (bl.GetBaseQuarterOccupied()))
{
goto loc_68BABC;
}
}
continue;
}
water_height = tileElement->AsSurface()->GetWaterHeight() * 2;
if (water_height && water_height > zLow && tileElement->base_height < zHigh)
{
gMapGroundFlags |= ELEMENT_IS_UNDERWATER;
if (water_height < zHigh)
{
goto loc_68BAE6;
}
}
loc_68B9B7:
if (gParkFlags & PARK_FLAGS_FORBID_HIGH_CONSTRUCTION)
{
al = zHigh - tileElement->base_height;
if (al >= 0)
{
if (al > 18)
{
gGameCommandErrorText = STR_LOCAL_AUTHORITY_WONT_ALLOW_CONSTRUCTION_ABOVE_TREE_HEIGHT;
return false;
}
}
}
// Only allow building crossings directly on a flat surface tile.
if (tileElement->GetType() == TILE_ELEMENT_TYPE_SURFACE
&& (tileElement->AsSurface()->GetSlope()) == TILE_ELEMENT_SLOPE_FLAT && tileElement->base_height == zLow)
{
canBuildCrossing = true;
}
if (bl.GetZQuarterOccupied() != 0b1111)
{
if (tileElement->base_height >= zHigh)
{
// loc_68BA81
gMapGroundFlags |= ELEMENT_IS_UNDERGROUND;
gMapGroundFlags &= ~ELEMENT_IS_ABOVE_GROUND;
}
else
{
al = tileElement->base_height;
ah = al;
cl = al;
ch = al;
slope = tileElement->AsSurface()->GetSlope();
if (slope & TILE_ELEMENT_SLOPE_N_CORNER_UP)
{
al += 2;
if (slope == (TILE_ELEMENT_SLOPE_S_CORNER_DN | TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT))
al += 2;
}
if (slope & TILE_ELEMENT_SLOPE_E_CORNER_UP)
{
ah += 2;
if (slope == (TILE_ELEMENT_SLOPE_W_CORNER_DN | TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT))
ah += 2;
}
if (slope & TILE_ELEMENT_SLOPE_S_CORNER_UP)
{
cl += 2;
if (slope == (TILE_ELEMENT_SLOPE_N_CORNER_DN | TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT))
cl += 2;
}
if (slope & TILE_ELEMENT_SLOPE_W_CORNER_UP)
{
ch += 2;
if (slope == (TILE_ELEMENT_SLOPE_E_CORNER_DN | TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT))
ch += 2;
}
bh = zLow + 4;
{
auto baseQuarter = bl.GetBaseQuarterOccupied();
auto zQuarter = bl.GetZQuarterOccupied();
if ((!(baseQuarter & 0b0001) || ((zQuarter & 0b0001 || zLow >= al) && bh >= al))
&& (!(baseQuarter & 0b0010) || ((zQuarter & 0b0010 || zLow >= ah) && bh >= ah))
&& (!(baseQuarter & 0b0100) || ((zQuarter & 0b0100 || zLow >= cl) && bh >= cl))
&& (!(baseQuarter & 0b1000) || ((zQuarter & 0b1000 || zLow >= ch) && bh >= ch)))
{
continue;
}
}
loc_68BABC:
if (clearFunc != nullptr)
{
if (!clearFunc(&tileElement, x, y, flags, price))
{
continue;
}
}
// Crossing mode 1: building track over path
if (crossingMode == 1 && canBuildCrossing && tileElement->GetType() == TILE_ELEMENT_TYPE_PATH
&& tileElement->base_height == zLow && !tileElement->AsPath()->IsQueue()
&& !tileElement->AsPath()->IsSloped())
{
continue;
}
// Crossing mode 2: building path over track
else if (
crossingMode == 2 && canBuildCrossing && tileElement->GetType() == TILE_ELEMENT_TYPE_TRACK
&& tileElement->base_height == zLow && tileElement->AsTrack()->GetTrackType() == TRACK_ELEM_FLAT)
{
Ride* ride = get_ride(tileElement->AsTrack()->GetRideIndex());
if (ride->type == RIDE_TYPE_MINIATURE_RAILWAY)
{
continue;
}
}
if (tileElement != nullptr)
{
map_obstruction_set_error_text(tileElement);
}
return false;
loc_68BAE6:
if (clearFunc != nullptr)
{
if (!clearFunc(&tileElement, x, y, flags, price))
{
goto loc_68B9B7;
}
}
if (tileElement != nullptr)
{
gGameCommandErrorText = STR_CANNOT_BUILD_PARTLY_ABOVE_AND_PARTLY_BELOW_WATER;
}
return false;
}
}
} while (!(tileElement++)->IsLastForTile());
return true;
}
/**
*
* rct2: 0x0068B93A
*/
int32_t map_can_construct_at(int32_t x, int32_t y, int32_t zLow, int32_t zHigh, QuarterTile bl)
{
return map_can_construct_with_clear_at(x, y, zLow, zHigh, nullptr, bl, 0, nullptr, CREATE_CROSSING_MODE_NONE);
}
/**
* Updates grass length, scenery age and jumping fountains.
*
* rct2: 0x006646E1
*/
void map_update_tiles()
{
int32_t ignoreScreenFlags = SCREEN_FLAGS_SCENARIO_EDITOR | SCREEN_FLAGS_TRACK_DESIGNER | SCREEN_FLAGS_TRACK_MANAGER;
if (gScreenFlags & ignoreScreenFlags)
return;
// Update 43 more tiles
for (int32_t j = 0; j < 43; j++)
{
int32_t x = 0;
int32_t y = 0;
uint16_t interleaved_xy = gGrassSceneryTileLoopPosition;
for (int32_t i = 0; i < 8; i++)
{
x = (x << 1) | (interleaved_xy & 1);
interleaved_xy >>= 1;
y = (y << 1) | (interleaved_xy & 1);
interleaved_xy >>= 1;
}
TileElement* tileElement = map_get_surface_element_at(x, y);
if (tileElement != nullptr)
{
tileElement->AsSurface()->UpdateGrassLength({ x * 32, y * 32 });
scenery_update_tile(x * 32, y * 32);
}
gGrassSceneryTileLoopPosition++;
gGrassSceneryTileLoopPosition &= 0xFFFF;
}
}
void map_remove_provisional_elements()
{
if (gFootpathProvisionalFlags & PROVISIONAL_PATH_FLAG_1)
{
footpath_provisional_remove();
gFootpathProvisionalFlags |= PROVISIONAL_PATH_FLAG_1;
}
if (window_find_by_class(WC_RIDE_CONSTRUCTION) != nullptr)
{
ride_remove_provisional_track_piece();
ride_entrance_exit_remove_ghost();
}
}
void map_restore_provisional_elements()
{
if (gFootpathProvisionalFlags & PROVISIONAL_PATH_FLAG_1)
{
gFootpathProvisionalFlags &= ~PROVISIONAL_PATH_FLAG_1;
footpath_provisional_set(
gFootpathProvisionalType, gFootpathProvisionalPosition.x, gFootpathProvisionalPosition.y,
gFootpathProvisionalPosition.z, gFootpathProvisionalSlope);
}
if (window_find_by_class(WC_RIDE_CONSTRUCTION) != nullptr)
{
ride_restore_provisional_track_piece();
ride_entrance_exit_place_provisional_ghost();
}
}
/**
* Removes elements that are out of the map size range and crops the park perimeter.
* rct2: 0x0068ADBC
*/
void map_remove_out_of_range_elements()
{
int32_t mapMaxXY = gMapSizeMaxXY;
for (int32_t y = 0; y < (MAXIMUM_MAP_SIZE_TECHNICAL * 32); y += 32)
{
for (int32_t x = 0; x < (MAXIMUM_MAP_SIZE_TECHNICAL * 32); x += 32)
{
if (x == 0 || y == 0 || x >= mapMaxXY || y >= mapMaxXY)
{
map_buy_land_rights(x, y, x, y, BUY_LAND_RIGHTS_FLAG_UNOWN_TILE, GAME_COMMAND_FLAG_APPLY);
clear_elements_at(x, y);
}
}
}
}
/**
* Copies the terrain and slope from the edge of the map to the new tiles. Used when increasing the size of the map.
* rct2: 0x0068AC15
*/
void map_extend_boundary_surface()
{
SurfaceElement *existingTileElement, *newTileElement;
int32_t x, y, z, slope;
y = gMapSize - 2;
for (x = 0; x < MAXIMUM_MAP_SIZE_TECHNICAL; x++)
{
existingTileElement = map_get_surface_element_at(x, y - 1)->AsSurface();
newTileElement = map_get_surface_element_at(x, y)->AsSurface();
newTileElement->SetSurfaceStyle(existingTileElement->GetSurfaceStyle());
newTileElement->SetEdgeStyle(existingTileElement->GetEdgeStyle());
newTileElement->SetGrassLength(existingTileElement->GetGrassLength());
newTileElement->SetOwnership(OWNERSHIP_UNOWNED);
newTileElement->SetWaterHeight(existingTileElement->GetWaterHeight());
z = existingTileElement->base_height;
slope = existingTileElement->GetSlope() & TILE_ELEMENT_SLOPE_NW_SIDE_UP;
if (slope == TILE_ELEMENT_SLOPE_NW_SIDE_UP)
{
z += 2;
slope = TILE_ELEMENT_SLOPE_FLAT;
if (existingTileElement->GetSlope() & TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT)
{
slope = TILE_ELEMENT_SLOPE_N_CORNER_UP;
if (existingTileElement->GetSlope() & TILE_ELEMENT_SLOPE_S_CORNER_UP)
{
slope = TILE_ELEMENT_SLOPE_W_CORNER_UP;
if (existingTileElement->GetSlope() & TILE_ELEMENT_SLOPE_E_CORNER_UP)
{
slope = TILE_ELEMENT_SLOPE_FLAT;
}
}
}
}
if (slope & TILE_ELEMENT_SLOPE_N_CORNER_UP)
slope |= TILE_ELEMENT_SLOPE_E_CORNER_UP;
if (slope & TILE_ELEMENT_SLOPE_W_CORNER_UP)
slope |= TILE_ELEMENT_SLOPE_S_CORNER_UP;
newTileElement->SetSlope(slope);
newTileElement->base_height = z;
newTileElement->clearance_height = z;
update_park_fences({ x << 5, y << 5 });
}
x = gMapSize - 2;
for (y = 0; y < MAXIMUM_MAP_SIZE_TECHNICAL; y++)
{
existingTileElement = map_get_surface_element_at(x - 1, y)->AsSurface();
newTileElement = map_get_surface_element_at(x, y)->AsSurface();
newTileElement->SetSurfaceStyle(existingTileElement->GetSurfaceStyle());
newTileElement->SetEdgeStyle(existingTileElement->GetEdgeStyle());
newTileElement->SetGrassLength(existingTileElement->GetGrassLength());
newTileElement->SetOwnership(OWNERSHIP_UNOWNED);
newTileElement->SetWaterHeight(existingTileElement->GetWaterHeight());
z = existingTileElement->base_height;
slope = existingTileElement->GetSlope() & TILE_ELEMENT_SLOPE_NE_SIDE_UP;
if (slope == TILE_ELEMENT_SLOPE_NE_SIDE_UP)
{
z += 2;
slope = TILE_ELEMENT_SLOPE_FLAT;
if (existingTileElement->GetSlope() & TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT)
{
slope = TILE_ELEMENT_SLOPE_N_CORNER_UP;
if (existingTileElement->GetSlope() & TILE_ELEMENT_SLOPE_S_CORNER_UP)
{
slope = TILE_ELEMENT_SLOPE_E_CORNER_UP;
if (existingTileElement->GetSlope() & TILE_ELEMENT_SLOPE_W_CORNER_UP)
{
slope = TILE_ELEMENT_SLOPE_FLAT;
}
}
}
}
if (slope & TILE_ELEMENT_SLOPE_N_CORNER_UP)
slope |= TILE_ELEMENT_SLOPE_W_CORNER_UP;
if (slope & TILE_ELEMENT_SLOPE_E_CORNER_UP)
slope |= TILE_ELEMENT_SLOPE_S_CORNER_UP;
newTileElement->SetSlope(slope);
newTileElement->base_height = z;
newTileElement->clearance_height = z;
update_park_fences({ x << 5, y << 5 });
}
}
/**
* Clears the provided element properly from a certain tile, and updates
* the pointer (when needed) passed to this function to point to the next element.
*/
static void clear_element_at(int32_t x, int32_t y, TileElement** elementPtr)
{
TileElement* element = *elementPtr;
switch (element->GetType())
{
case TILE_ELEMENT_TYPE_SURFACE:
element->base_height = 2;
element->clearance_height = 2;
element->AsSurface()->SetSlope(TILE_ELEMENT_SLOPE_FLAT);
element->AsSurface()->SetSurfaceStyle(TERRAIN_GRASS);
element->AsSurface()->SetEdgeStyle(TERRAIN_EDGE_ROCK);
element->AsSurface()->SetGrassLength(GRASS_LENGTH_CLEAR_0);
element->AsSurface()->SetOwnership(OWNERSHIP_UNOWNED);
element->AsSurface()->SetParkFences(0);
element->AsSurface()->SetWaterHeight(0);
// Because this element is not completely removed, the pointer must be updated manually
// The rest of the elements are removed from the array, so the pointer doesn't need to be updated.
(*elementPtr)++;
break;
case TILE_ELEMENT_TYPE_ENTRANCE:
{
int32_t rotation = element->GetDirectionWithOffset(1);
switch (element->AsEntrance()->GetSequenceIndex())
{
case 1:
x += CoordsDirectionDelta[rotation].x;
y += CoordsDirectionDelta[rotation].y;
break;
case 2:
x -= CoordsDirectionDelta[rotation].x;
y -= CoordsDirectionDelta[rotation].y;
break;
}
gGameCommandErrorTitle = STR_CANT_REMOVE_THIS;
game_do_command(x, GAME_COMMAND_FLAG_APPLY, y, element->base_height / 2, GAME_COMMAND_REMOVE_PARK_ENTRANCE, 0, 0);
break;
}
case TILE_ELEMENT_TYPE_WALL:
{
TileCoordsXYZD wallLocation = { x >> 5, y >> 5, element->base_height, element->GetDirection() };
auto wallRemoveAction = WallRemoveAction(wallLocation);
GameActions::Execute(&wallRemoveAction);
}
break;
case TILE_ELEMENT_TYPE_LARGE_SCENERY:
{
auto removeSceneryAction = LargeSceneryRemoveAction(
x, y, element->base_height, element->GetDirection(), element->AsLargeScenery()->GetSequenceIndex());
GameActions::Execute(&removeSceneryAction);
}
break;
case TILE_ELEMENT_TYPE_BANNER:
gGameCommandErrorTitle = STR_CANT_REMOVE_THIS;
game_do_command(
x, GAME_COMMAND_FLAG_APPLY, y, (element->base_height) | ((element->AsBanner()->GetPosition() & 3) << 8),
GAME_COMMAND_REMOVE_BANNER, 0, 0);
break;
default:
tile_element_remove(element);
break;
}
}
/**
* Clears all elements properly from a certain tile.
* rct2: 0x0068AE2A
*/
static void clear_elements_at(int32_t x, int32_t y)
{
// Remove the spawn point (if there is one in the current tile)
gPeepSpawns.erase(
std::remove_if(
gPeepSpawns.begin(), gPeepSpawns.end(),
[x, y](const auto& spawn) { return floor2(spawn.x, 32) == x && floor2(spawn.y, 32) == y; }),
gPeepSpawns.end());
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
// Remove all elements except the last one
while (!tileElement->IsLastForTile())
clear_element_at(x, y, &tileElement);
// Remove the last element
clear_element_at(x, y, &tileElement);
}
int32_t map_get_highest_z(int32_t tileX, int32_t tileY)
{
TileElement* tileElement;
uint32_t z;
tileElement = map_get_surface_element_at(tileX, tileY);
if (tileElement == nullptr)
return -1;
z = tileElement->base_height * 8;
// Raise z so that is above highest point of land and water on tile
if ((tileElement->AsSurface()->GetSlope() & TILE_ELEMENT_SLOPE_ALL_CORNERS_UP) != TILE_ELEMENT_SLOPE_FLAT)
z += 16;
if ((tileElement->AsSurface()->GetSlope() & TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT) != 0)
z += 16;
z = std::max(z, tileElement->AsSurface()->GetWaterHeight() * 16);
return z;
}
TileElement* map_get_large_scenery_segment(int32_t x, int32_t y, int32_t z, int32_t direction, int32_t sequence)
{
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
if (tileElement == nullptr)
{
return nullptr;
}
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_LARGE_SCENERY)
continue;
if (tileElement->base_height != z)
continue;
if (tileElement->AsLargeScenery()->GetSequenceIndex() != sequence)
continue;
if ((tileElement->GetDirection()) != direction)
continue;
return tileElement;
} while (!(tileElement++)->IsLastForTile());
return nullptr;
}
EntranceElement* map_get_park_entrance_element_at(int32_t x, int32_t y, int32_t z, bool ghost)
{
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
if (tileElement != nullptr)
{
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_ENTRANCE)
continue;
if (tileElement->base_height != z)
continue;
if (tileElement->AsEntrance()->GetEntranceType() != ENTRANCE_TYPE_PARK_ENTRANCE)
continue;
if ((ghost == false) && (tileElement->IsGhost()))
continue;
return tileElement->AsEntrance();
} while (!(tileElement++)->IsLastForTile());
}
return nullptr;
}
EntranceElement* map_get_ride_entrance_element_at(int32_t x, int32_t y, int32_t z, bool ghost)
{
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
if (tileElement != nullptr)
{
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_ENTRANCE)
continue;
if (tileElement->base_height != z)
continue;
if (tileElement->AsEntrance()->GetEntranceType() != ENTRANCE_TYPE_RIDE_ENTRANCE)
continue;
if ((ghost == false) && (tileElement->IsGhost()))
continue;
return tileElement->AsEntrance();
} while (!(tileElement++)->IsLastForTile());
}
return nullptr;
}
EntranceElement* map_get_ride_exit_element_at(int32_t x, int32_t y, int32_t z, bool ghost)
{
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
if (tileElement != nullptr)
{
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_ENTRANCE)
continue;
if (tileElement->base_height != z)
continue;
if (tileElement->AsEntrance()->GetEntranceType() != ENTRANCE_TYPE_RIDE_EXIT)
continue;
if ((ghost == false) && (tileElement->IsGhost()))
continue;
return tileElement->AsEntrance();
} while (!(tileElement++)->IsLastForTile());
}
return nullptr;
}
TileElement* map_get_small_scenery_element_at(int32_t x, int32_t y, int32_t z, int32_t type, uint8_t quadrant)
{
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
if (tileElement != nullptr)
{
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_SMALL_SCENERY)
continue;
if (tileElement->AsSmallScenery()->GetSceneryQuadrant() != quadrant)
continue;
if (tileElement->base_height != z)
continue;
if (tileElement->AsSmallScenery()->GetEntryIndex() != type)
continue;
return tileElement;
} while (!(tileElement++)->IsLastForTile());
}
return nullptr;
}
bool map_large_scenery_get_origin(
int32_t x, int32_t y, int32_t z, int32_t direction, int32_t sequence, int32_t* outX, int32_t* outY, int32_t* outZ,
TileElement** outElement)
{
TileElement* tileElement;
rct_scenery_entry* sceneryEntry;
rct_large_scenery_tile* tile;
int16_t offsetX, offsetY;
tileElement = map_get_large_scenery_segment(x, y, z, direction, sequence);
if (tileElement == nullptr)
return false;
sceneryEntry = tileElement->AsLargeScenery()->GetEntry();
tile = &sceneryEntry->large_scenery.tiles[sequence];
offsetX = tile->x_offset;
offsetY = tile->y_offset;
rotate_map_coordinates(&offsetX, &offsetY, direction);
*outX = x - offsetX;
*outY = y - offsetY;
*outZ = (z * 8) - tile->z_offset;
if (outElement != nullptr)
*outElement = tileElement;
return true;
}
/**
*
* rct2: 0x006B9B05
*/
bool sign_set_colour(
int32_t x, int32_t y, int32_t z, int32_t direction, int32_t sequence, uint8_t mainColour, uint8_t textColour)
{
TileElement* tileElement;
rct_scenery_entry* sceneryEntry;
rct_large_scenery_tile *sceneryTiles, *tile;
int16_t offsetX, offsetY;
int32_t x0, y0, z0;
if (!map_large_scenery_get_origin(x, y, z, direction, sequence, &x0, &y0, &z0, &tileElement))
{
return false;
}
sceneryEntry = tileElement->AsLargeScenery()->GetEntry();
sceneryTiles = sceneryEntry->large_scenery.tiles;
// Iterate through each tile of the large scenery element
sequence = 0;
for (tile = sceneryTiles; tile->x_offset != -1; tile++, sequence++)
{
offsetX = tile->x_offset;
offsetY = tile->y_offset;
rotate_map_coordinates(&offsetX, &offsetY, direction);
x = x0 + offsetX;
y = y0 + offsetY;
z = (z0 + tile->z_offset) / 8;
tileElement = map_get_large_scenery_segment(x, y, z, direction, sequence);
if (tileElement != nullptr)
{
tileElement->AsLargeScenery()->SetPrimaryColour(mainColour);
tileElement->AsLargeScenery()->SetSecondaryColour(textColour);
map_invalidate_tile(x, y, tileElement->base_height * 8, tileElement->clearance_height * 8);
}
}
return true;
}
static void translate_3d_to_2d(int32_t rotation, int32_t* x, int32_t* y)
{
int32_t rx, ry;
switch (rotation & 3)
{
default:
case 0:
rx = (*y) - (*x);
ry = (*x) + (*y);
break;
case 1:
rx = -(*x) - (*y);
ry = (*y) - (*x);
break;
case 2:
rx = (*x) - (*y);
ry = -(*x) - (*y);
break;
case 3:
rx = (*x) + (*y);
ry = (*x) - (*y);
break;
}
ry /= 2;
*x = rx;
*y = ry;
}
CoordsXY translate_3d_to_2d_with_z(int32_t rotation, CoordsXYZ pos)
{
CoordsXY result = {};
switch (rotation & 3)
{
default:
case 0:
result.x = pos.y - pos.x;
result.y = (pos.x + pos.y) / 2 - pos.z;
break;
case 1:
result.x = -pos.x - pos.y;
result.y = (pos.y - pos.x) / 2 - pos.z;
break;
case 2:
result.x = pos.x - pos.y;
result.y = (-pos.x - pos.y) / 2 - pos.z;
break;
case 3:
result.x = pos.x + pos.y;
result.y = (pos.x - pos.y) / 2 - pos.z;
break;
}
return result;
}
static void map_invalidate_tile_under_zoom(int32_t x, int32_t y, int32_t z0, int32_t z1, int32_t maxZoom)
{
if (gOpenRCT2Headless)
return;
int32_t x1, y1, x2, y2;
x += 16;
y += 16;
translate_3d_to_2d(get_current_rotation(), &x, &y);
x1 = x - 32;
y1 = y - 32 - z1;
x2 = x + 32;
y2 = y + 32 - z0;
for (int32_t i = 0; i < MAX_VIEWPORT_COUNT; i++)
{
rct_viewport* viewport = &g_viewport_list[i];
if (viewport->width != 0 && (maxZoom == -1 || viewport->zoom <= maxZoom))
{
viewport_invalidate(viewport, x1, y1, x2, y2);
}
}
}
/**
*
* rct2: 0x006EC847
*/
void map_invalidate_tile(int32_t x, int32_t y, int32_t z0, int32_t z1)
{
map_invalidate_tile_under_zoom(x, y, z0, z1, -1);
}
/**
*
* rct2: 0x006ECB60
*/
void map_invalidate_tile_zoom1(int32_t x, int32_t y, int32_t z0, int32_t z1)
{
map_invalidate_tile_under_zoom(x, y, z0, z1, 1);
}
/**
*
* rct2: 0x006EC9CE
*/
void map_invalidate_tile_zoom0(int32_t x, int32_t y, int32_t z0, int32_t z1)
{
map_invalidate_tile_under_zoom(x, y, z0, z1, 0);
}
/**
*
* rct2: 0x006EC6D7
*/
void map_invalidate_tile_full(int32_t x, int32_t y)
{
map_invalidate_tile(x, y, 0, 2080);
}
void map_invalidate_element(int32_t x, int32_t y, TileElement* tileElement)
{
map_invalidate_tile(x, y, tileElement->base_height * 8, tileElement->clearance_height * 8);
}
void map_invalidate_region(const LocationXY16& mins, const LocationXY16& maxs)
{
int32_t x0, y0, x1, y1, left, right, top, bottom;
x0 = mins.x + 16;
y0 = mins.y + 16;
x1 = maxs.x + 16;
y1 = maxs.y + 16;
map_get_bounding_box(x0, y0, x1, y1, &left, &top, &right, &bottom);
left -= 32;
right += 32;
bottom += 32;
top -= 32 + 2080;
for (int32_t i = 0; i < MAX_VIEWPORT_COUNT; i++)
{
rct_viewport* viewport = &g_viewport_list[i];
if (viewport->width != 0)
{
viewport_invalidate(viewport, left, top, right, bottom);
}
}
}
int32_t map_get_tile_side(int32_t mapX, int32_t mapY)
{
int32_t subMapX = mapX & (32 - 1);
int32_t subMapY = mapY & (32 - 1);
return (subMapX < subMapY) ? ((subMapX + subMapY) < 32 ? 0 : 1) : ((subMapX + subMapY) < 32 ? 3 : 2);
}
int32_t map_get_tile_quadrant(int32_t mapX, int32_t mapY)
{
int32_t subMapX = mapX & (32 - 1);
int32_t subMapY = mapY & (32 - 1);
return (subMapX > 16) ? (subMapY < 16 ? 1 : 0) : (subMapY < 16 ? 2 : 3);
}
/**
*
* rct2: 0x00693BFF
*/
bool map_surface_is_blocked(int16_t x, int16_t y)
{
TileElement* tileElement;
if (x >= 8192 || y >= 8192)
return true;
tileElement = map_get_surface_element_at({ x, y });
if (tileElement == nullptr)
{
return true;
}
int16_t water_height = tileElement->AsSurface()->GetWaterHeight();
water_height *= 2;
if (water_height > tileElement->base_height)
return true;
int16_t base_z = tileElement->base_height;
int16_t clear_z = tileElement->base_height + 2;
if (tileElement->AsSurface()->GetSlope() & TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT)
clear_z += 2;
while (!(tileElement++)->IsLastForTile())
{
if (clear_z >= tileElement->clearance_height)
continue;
if (base_z < tileElement->base_height)
continue;
if (tileElement->GetType() == TILE_ELEMENT_TYPE_PATH || tileElement->GetType() == TILE_ELEMENT_TYPE_WALL)
continue;
if (tileElement->GetType() != TILE_ELEMENT_TYPE_SMALL_SCENERY)
return true;
rct_scenery_entry* scenery = tileElement->AsSmallScenery()->GetEntry();
if (scenery == nullptr)
{
return false;
}
if (scenery_small_entry_has_flag(scenery, SMALL_SCENERY_FLAG_FULL_TILE))
return true;
}
return false;
}
/* Clears all map elements, to be used before generating a new map */
void map_clear_all_elements()
{
for (int32_t y = 0; y < (MAXIMUM_MAP_SIZE_TECHNICAL * 32); y += 32)
{
for (int32_t x = 0; x < (MAXIMUM_MAP_SIZE_TECHNICAL * 32); x += 32)
{
clear_elements_at(x, y);
}
}
}
void game_command_modify_tile(
int32_t* eax, int32_t* ebx, int32_t* ecx, int32_t* edx, [[maybe_unused]] int32_t* esi, int32_t* edi, int32_t* ebp)
{
const int32_t flags = *ebx;
const int32_t x = *ecx & 0xFF;
const int32_t y = (*ecx >> 8) & 0xFF;
const TILE_INSPECTOR_INSTRUCTION_TYPE instruction = static_cast<TILE_INSPECTOR_INSTRUCTION_TYPE>(*eax);
switch (instruction)
{
case TILE_INSPECTOR_ANY_REMOVE:
{
const int16_t elementIndex = *edx;
*ebx = tile_inspector_remove_element_at(x, y, elementIndex, flags);
break;
}
case TILE_INSPECTOR_ANY_SWAP:
{
const int32_t firstIndex = *edx;
const int32_t secondIndex = *edi;
*ebx = tile_inspector_swap_elements_at(x, y, firstIndex, secondIndex, flags);
break;
}
case TILE_INSPECTOR_ANY_INSERT_CORRUPT:
{
const int16_t elementIndex = *edx;
*ebx = tile_inspector_insert_corrupt_at(x, y, elementIndex, flags);
break;
}
case TILE_INSPECTOR_ANY_ROTATE:
{
const int16_t elementIndex = *edx;
*ebx = tile_inspector_rotate_element_at(x, y, elementIndex, flags);
break;
}
case TILE_INSPECTOR_ANY_PASTE:
{
TileElement elementToPaste;
const int32_t data[] = { *edx, *edi };
assert_struct_size(data, sizeof(elementToPaste));
std::memcpy(&elementToPaste, data, 8);
*ebx = tile_inspector_paste_element_at(x, y, elementToPaste, flags);
break;
}
case TILE_INSPECTOR_ANY_SORT:
{
*ebx = tile_inspector_sort_elements_at(x, y, flags);
break;
}
case TILE_INSPECTOR_ANY_BASE_HEIGHT_OFFSET:
{
const int16_t elementIndex = *edx;
const int8_t heightOffset = *edi;
*ebx = tile_inspector_any_base_height_offset(x, y, elementIndex, heightOffset, flags);
break;
}
case TILE_INSPECTOR_SURFACE_SHOW_PARK_FENCES:
{
const bool showFences = *edx;
*ebx = tile_inspector_surface_show_park_fences(x, y, showFences, flags);
break;
}
case TILE_INSPECTOR_SURFACE_TOGGLE_CORNER:
{
const int32_t cornerIndex = *edx;
*ebx = tile_inspector_surface_toggle_corner(x, y, cornerIndex, flags);
break;
}
case TILE_INSPECTOR_SURFACE_TOGGLE_DIAGONAL:
{
*ebx = tile_inspector_surface_toggle_diagonal(x, y, flags);
break;
}
case TILE_INSPECTOR_PATH_SET_SLOPE:
{
const int32_t elementIndex = *edx;
const bool sloped = *edi;
*ebx = tile_inspector_path_set_sloped(x, y, elementIndex, sloped, flags);
break;
}
case TILE_INSPECTOR_PATH_TOGGLE_EDGE:
{
const int32_t elementIndex = *edx;
const int32_t edgeIndex = *edi;
*ebx = tile_inspector_path_toggle_edge(x, y, elementIndex, edgeIndex, flags);
break;
}
case TILE_INSPECTOR_ENTRANCE_MAKE_USABLE:
{
const int32_t elementIndex = *edx;
*ebx = tile_inspector_entrance_make_usable(x, y, elementIndex, flags);
break;
}
case TILE_INSPECTOR_WALL_SET_SLOPE:
{
const int32_t elementIndex = *edx;
const int32_t slopeValue = *edi;
*ebx = tile_inspector_wall_set_slope(x, y, elementIndex, slopeValue, flags);
break;
}
case TILE_INSPECTOR_TRACK_BASE_HEIGHT_OFFSET:
{
const int32_t elementIndex = *edx;
const int8_t heightOffset = *edi;
*ebx = tile_inspector_track_base_height_offset(x, y, elementIndex, heightOffset, flags);
break;
}
case TILE_INSPECTOR_TRACK_SET_CHAIN:
{
const int32_t elementIndex = *edx;
const bool entireTrackBlock = *edi;
const bool setChain = *ebp;
*ebx = tile_inspector_track_set_chain(x, y, elementIndex, entireTrackBlock, setChain, flags);
break;
}
case TILE_INSPECTOR_SCENERY_SET_QUARTER_LOCATION:
{
const int32_t elementIndex = *edx;
const int32_t quarterIndex = *edi;
*ebx = tile_inspector_scenery_set_quarter_location(x, y, elementIndex, quarterIndex, flags);
break;
}
case TILE_INSPECTOR_SCENERY_SET_QUARTER_COLLISION:
{
const int32_t elementIndex = *edx;
const int32_t quarterIndex = *edi;
*ebx = tile_inspector_scenery_set_quarter_collision(x, y, elementIndex, quarterIndex, flags);
break;
}
case TILE_INSPECTOR_BANNER_TOGGLE_BLOCKING_EDGE:
{
const int32_t elementIndex = *edx;
const int32_t edgeIndex = *edi;
*ebx = tile_inspector_banner_toggle_blocking_edge(x, y, elementIndex, edgeIndex, flags);
break;
}
case TILE_INSPECTOR_CORRUPT_CLAMP:
{
const int32_t elementIndex = *edx;
*ebx = tile_inspector_corrupt_clamp(x, y, elementIndex, flags);
break;
}
default:
log_error("invalid instruction");
*ebx = MONEY32_UNDEFINED;
break;
}
if (flags & GAME_COMMAND_FLAG_APPLY && gGameCommandNestLevel == 1 && !(flags & GAME_COMMAND_FLAG_GHOST)
&& *ebx != MONEY32_UNDEFINED)
{
LocationXYZ16 coord;
coord.x = (x << 5) + 16;
coord.y = (y << 5) + 16;
coord.z = tile_element_height(coord.x, coord.y);
network_set_player_last_action_coord(network_get_player_index(game_command_playerid), coord);
}
}
/**
* Gets the track element at x, y, z.
* @param x x units, not tiles.
* @param y y units, not tiles.
* @param z Base height.
*/
TileElement* map_get_track_element_at(int32_t x, int32_t y, int32_t z)
{
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_TRACK)
continue;
if (tileElement->base_height != z)
continue;
return tileElement;
} while (!(tileElement++)->IsLastForTile());
return nullptr;
}
/**
* Gets the track element at x, y, z that is the given track type.
* @param x x units, not tiles.
* @param y y units, not tiles.
* @param z Base height.
*/
TileElement* map_get_track_element_at_of_type(int32_t x, int32_t y, int32_t z, int32_t trackType)
{
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_TRACK)
continue;
if (tileElement->base_height != z)
continue;
if (tileElement->AsTrack()->GetTrackType() != trackType)
continue;
return tileElement;
} while (!(tileElement++)->IsLastForTile());
return nullptr;
}
/**
* Gets the track element at x, y, z that is the given track type and sequence.
* @param x x units, not tiles.
* @param y y units, not tiles.
* @param z Base height.
*/
TileElement* map_get_track_element_at_of_type_seq(int32_t x, int32_t y, int32_t z, int32_t trackType, int32_t sequence)
{
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
do
{
if (tileElement == nullptr)
break;
if (tileElement->GetType() != TILE_ELEMENT_TYPE_TRACK)
continue;
if (tileElement->base_height != z)
continue;
if (tileElement->AsTrack()->GetTrackType() != trackType)
continue;
if (tileElement->AsTrack()->GetSequenceIndex() != sequence)
continue;
return tileElement;
} while (!(tileElement++)->IsLastForTile());
return nullptr;
}
/**
* Gets the track element at x, y, z that is the given track type and sequence.
* @param x x units, not tiles.
* @param y y units, not tiles.
* @param z Base height.
*/
TileElement* map_get_track_element_at_of_type_from_ride(int32_t x, int32_t y, int32_t z, int32_t trackType, ride_id_t rideIndex)
{
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_TRACK)
continue;
if (tileElement->base_height != z)
continue;
if (tileElement->AsTrack()->GetRideIndex() != rideIndex)
continue;
if (tileElement->AsTrack()->GetTrackType() != trackType)
continue;
return tileElement;
} while (!(tileElement++)->IsLastForTile());
return nullptr;
};
/**
* Gets the track element at x, y, z that is the given track type and sequence.
* @param x x units, not tiles.
* @param y y units, not tiles.
* @param z Base height.
*/
TileElement* map_get_track_element_at_from_ride(int32_t x, int32_t y, int32_t z, ride_id_t rideIndex)
{
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_TRACK)
continue;
if (tileElement->base_height != z)
continue;
if (tileElement->AsTrack()->GetRideIndex() != rideIndex)
continue;
return tileElement;
} while (!(tileElement++)->IsLastForTile());
return nullptr;
};
/**
* Gets the track element at x, y, z that is the given track type and sequence.
* @param x x units, not tiles.
* @param y y units, not tiles.
* @param z Base height.
* @param direction The direction (0 - 3).
*/
TileElement* map_get_track_element_at_with_direction_from_ride(
int32_t x, int32_t y, int32_t z, int32_t direction, ride_id_t rideIndex)
{
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_TRACK)
continue;
if (tileElement->base_height != z)
continue;
if (tileElement->AsTrack()->GetRideIndex() != rideIndex)
continue;
if (tileElement->GetDirection() != direction)
continue;
return tileElement;
} while (!(tileElement++)->IsLastForTile());
return nullptr;
};
void map_offset_with_rotation(int16_t* x, int16_t* y, int16_t offsetX, int16_t offsetY, uint8_t rotation)
{
switch (rotation & 3)
{
case TILE_ELEMENT_DIRECTION_WEST:
*x += offsetX;
*y += offsetY;
break;
case TILE_ELEMENT_DIRECTION_NORTH:
*x += offsetY;
*y -= offsetX;
break;
case TILE_ELEMENT_DIRECTION_EAST:
*x -= offsetX;
*y -= offsetY;
break;
case TILE_ELEMENT_DIRECTION_SOUTH:
*x -= offsetY;
*y += offsetX;
break;
}
}
TileElement* map_get_wall_element_at(int32_t x, int32_t y, int32_t z, int32_t direction)
{
TileElement* tileElement = map_get_first_element_at(x >> 5, y >> 5);
do
{
if (tileElement->GetType() != TILE_ELEMENT_TYPE_WALL)
continue;
if (tileElement->base_height != z)
continue;
if (tileElement->GetDirection() != direction)
continue;
return tileElement;
} while (!(tileElement++)->IsLastForTile());
return nullptr;
}
uint16_t check_max_allowable_land_rights_for_tile(uint8_t x, uint8_t y, uint8_t base_z)
{
TileElement* tileElement = map_get_first_element_at(x, y);
uint16_t destOwnership = OWNERSHIP_OWNED;
// Sometimes done deliberately.
if (tileElement == nullptr)
{
return OWNERSHIP_OWNED;
}
do
{
int32_t type = tileElement->GetType();
if (type == TILE_ELEMENT_TYPE_PATH
|| (type == TILE_ELEMENT_TYPE_ENTRANCE
&& tileElement->AsEntrance()->GetEntranceType() == ENTRANCE_TYPE_PARK_ENTRANCE))
{
destOwnership = OWNERSHIP_CONSTRUCTION_RIGHTS_OWNED;
// Do not own construction rights if too high/below surface
if (tileElement->base_height - 3 > base_z || tileElement->base_height < base_z)
{
destOwnership = OWNERSHIP_UNOWNED;
break;
}
}
} while (!(tileElement++)->IsLastForTile());
return destOwnership;
}
void FixLandOwnershipTiles(std::initializer_list<TileCoordsXY> tiles)
{
FixLandOwnershipTilesWithOwnership(tiles, OWNERSHIP_AVAILABLE);
}
void FixLandOwnershipTilesWithOwnership(std::initializer_list<TileCoordsXY> tiles, uint8_t ownership)
{
TileElement* currentElement;
for (const TileCoordsXY* tile = tiles.begin(); tile != tiles.end(); ++tile)
{
currentElement = map_get_surface_element_at((*tile).x, (*tile).y);
currentElement->AsSurface()->SetOwnership(ownership);
update_park_fences_around_tile({ (*tile).x * 32, (*tile).y * 32 });
}
}
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