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OpenRCT2/src/openrct2/ride/TrackDesign.cpp
2018-06-11 09:52:54 +02:00

2419 lines
82 KiB
C++

#pragma region Copyright (c) 2014-2018 OpenRCT2 Developers
/*****************************************************************************
* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
*
* OpenRCT2 is the work of many authors, a full list can be found in contributors.md
* For more information, visit https://github.com/OpenRCT2/OpenRCT2
*
* OpenRCT2 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* A full copy of the GNU General Public License can be found in licence.txt
*****************************************************************************/
#pragma endregion
#include "../audio/audio.h"
#include "../Cheats.h"
#include "../core/File.h"
#include "../core/Math.hpp"
#include "../core/String.hpp"
#include "../core/Util.hpp"
#include "../Game.h"
#include "../localisation/Localisation.h"
#include "../localisation/StringIds.h"
#include "../management/Finance.h"
#include "../network/network.h"
#include "../object/ObjectList.h"
#include "../object/ObjectManager.h"
#include "../object/ObjectRepository.h"
#include "../OpenRCT2.h"
#include "../rct1/RCT1.h"
#include "../rct1/Tables.h"
#include "RideData.h"
#include "Ride.h"
#include "TrackData.h"
#include "TrackDesign.h"
#include "TrackDesignRepository.h"
#include "Track.h"
#include "../util/SawyerCoding.h"
#include "../util/Util.h"
#include "../world/Footpath.h"
#include "../world/Park.h"
#include "../world/Scenery.h"
#include "../world/SmallScenery.h"
#include "../world/Surface.h"
#include "../world/Wall.h"
#include "../actions/WallRemoveAction.hpp"
struct map_backup
{
rct_tile_element tile_elements[MAX_TILE_ELEMENTS];
rct_tile_element * tile_pointers[MAX_TILE_TILE_ELEMENT_POINTERS];
rct_tile_element * next_free_tile_element;
uint16 map_size_units;
uint16 map_size_units_minus_2;
uint16 map_size;
uint8 current_rotation;
};
rct_track_td6 * gActiveTrackDesign;
bool gTrackDesignSceneryToggle;
LocationXYZ16 gTrackPreviewMin;
LocationXYZ16 gTrackPreviewMax;
LocationXYZ16 gTrackPreviewOrigin;
bool byte_9D8150;
static uint8 _trackDesignPlaceOperation;
static bool _trackDesignDontPlaceScenery;
static money32 _trackDesignPlaceCost;
static sint16 _trackDesignPlaceZ;
static sint16 _trackDesignPlaceSceneryZ;
// Previously all flags in byte_F4414E
static bool _trackDesignPlaceStateEntranceExitPlaced = false;
static bool _trackDesignPlaceStateSceneryUnavailable = false;
static bool _trackDesignPlaceStateHasScenery = false;
static bool _trackDesignPlaceStatePlaceScenery = true;
static rct_track_td6 * track_design_open_from_buffer(uint8 * src, size_t srcLength);
static map_backup * track_design_preview_backup_map();
static void track_design_preview_restore_map(map_backup * backup);
static void track_design_preview_clear_map();
static void td6_reset_trailing_elements(rct_track_td6 * td6);
static void td6_set_element_helper_pointers(rct_track_td6 * td6, bool clearScenery);
rct_track_td6 * track_design_open(const utf8 * path)
{
log_verbose("track_design_open(\"%s\")", path);
try
{
auto buffer = File::ReadAllBytes(path);
if (!sawyercoding_validate_track_checksum(buffer.data(), buffer.size()))
{
log_error("Track checksum failed. %s", path);
return nullptr;
}
// Decode the track data
uint8 * decoded = (uint8 *) malloc(0x10000);
size_t decodedLength = sawyercoding_decode_td6(buffer.data(), decoded, buffer.size());
decoded = (uint8 *) realloc(decoded, decodedLength);
if (decoded == nullptr)
{
log_error("failed to realloc");
}
else
{
rct_track_td6 * td6 = track_design_open_from_buffer(decoded, decodedLength);
free(decoded);
if (td6 != nullptr)
{
td6->name = String::Duplicate(GetNameFromTrackPath(path).c_str());
return td6;
}
}
}
catch (const std::exception& e)
{
log_error("Unable to load track design: %s", e.what());
}
return nullptr;
}
static rct_track_td6 * track_design_open_from_td4(uint8 * src, size_t srcLength)
{
rct_track_td4 * td4 = (rct_track_td4 *) calloc(1, sizeof(rct_track_td4));
if (td4 == nullptr)
{
log_error("Unable to allocate memory for TD4 data.");
SafeFree(td4);
return nullptr;
}
uint8 version = (src[7] >> 2) & 3;
if (version == 0)
{
memcpy(td4, src, 0x38);
td4->elementsSize = srcLength - 0x38;
td4->elements = malloc(td4->elementsSize);
if (td4->elements == nullptr)
{
log_error("Unable to allocate memory for TD4 element data.");
SafeFree(td4);
return nullptr;
}
memcpy(td4->elements, src + 0x38, td4->elementsSize);
}
else if (version == 1)
{
memcpy(td4, src, 0xC4);
td4->elementsSize = srcLength - 0xC4;
td4->elements = malloc(td4->elementsSize);
if (td4->elements == nullptr)
{
log_error("Unable to allocate memory for TD4 element data.");
SafeFree(td4);
return nullptr;
}
memcpy(td4->elements, src + 0xC4, td4->elementsSize);
}
else
{
log_error("Unsupported track design.");
SafeFree(td4);
return nullptr;
}
rct_track_td6 * td6 = (rct_track_td6 *) calloc(1, sizeof(rct_track_td6));
if (td6 == nullptr)
{
log_error("Unable to allocate memory for TD6 data.");
SafeFree(td4);
return nullptr;
}
td6->type = RCT1::GetRideType(td4->type);
// All TD4s that use powered launch use the type that doesn't pass the station.
td6->ride_mode = td4->mode;
if (td4->mode == RCT1_RIDE_MODE_POWERED_LAUNCH)
{
td6->ride_mode = RIDE_MODE_POWERED_LAUNCH;
}
// Convert RCT1 vehicle type to RCT2 vehicle type. Intialise with an string consisting of 8 spaces.
rct_object_entry vehicleObject = {0x80, " "};
if (td4->type == RIDE_TYPE_MAZE)
{
const char * name = RCT1::GetRideTypeObject(td4->type);
assert(name != nullptr);
memcpy(vehicleObject.name, name, Math::Min(String::SizeOf(name), (size_t)8));
}
else
{
const char * name = RCT1::GetVehicleObject(td4->vehicle_type);
assert(name != nullptr);
memcpy(vehicleObject.name, name, Math::Min(String::SizeOf(name), (size_t)8));
}
memcpy(&td6->vehicle_object, &vehicleObject, sizeof(rct_object_entry));
td6->vehicle_type = td4->vehicle_type;
td6->flags = td4->flags;
td6->version_and_colour_scheme = td4->version_and_colour_scheme;
// Vehicle colours
for (sint32 i = 0; i < RCT1_MAX_TRAINS_PER_RIDE; i++)
{
// RCT1 had no third colour
RCT1::RCT1VehicleColourSchemeCopyDescriptor colourSchemeCopyDescriptor = RCT1::GetColourSchemeCopyDescriptor(
td4->vehicle_type);
if (colourSchemeCopyDescriptor.colour1 == COPY_COLOUR_1)
{
td6->vehicle_colours[i].body_colour = RCT1::GetColour(td4->vehicle_colours[i].body_colour);
}
else if (colourSchemeCopyDescriptor.colour1 == COPY_COLOUR_2)
{
td6->vehicle_colours[i].body_colour = RCT1::GetColour(td4->vehicle_colours[i].trim_colour);
}
else
{
td6->vehicle_colours[i].body_colour = colourSchemeCopyDescriptor.colour1;
}
if (colourSchemeCopyDescriptor.colour2 == COPY_COLOUR_1)
{
td6->vehicle_colours[i].trim_colour = RCT1::GetColour(td4->vehicle_colours[i].body_colour);
}
else if (colourSchemeCopyDescriptor.colour2 == COPY_COLOUR_2)
{
td6->vehicle_colours[i].trim_colour = RCT1::GetColour(td4->vehicle_colours[i].trim_colour);
}
else
{
td6->vehicle_colours[i].trim_colour = colourSchemeCopyDescriptor.colour2;
}
if (colourSchemeCopyDescriptor.colour3 == COPY_COLOUR_1)
{
td6->vehicle_additional_colour[i] = RCT1::GetColour(td4->vehicle_colours[i].body_colour);
}
else if (colourSchemeCopyDescriptor.colour3 == COPY_COLOUR_2)
{
td6->vehicle_additional_colour[i] = RCT1::GetColour(td4->vehicle_colours[i].trim_colour);
}
else
{
td6->vehicle_additional_colour[i] = colourSchemeCopyDescriptor.colour3;
}
}
// Set remaining vehicles to same colour as first vehicle
for (sint32 i = RCT1_MAX_TRAINS_PER_RIDE; i < MAX_VEHICLES_PER_RIDE; i++)
{
td6->vehicle_colours[i] = td6->vehicle_colours[0];
td6->vehicle_additional_colour[i] = td6->vehicle_additional_colour[0];
}
// Track colours
if (version == 0)
{
for (sint32 i = 0; i < NUM_COLOUR_SCHEMES; i++)
{
td6->track_spine_colour[i] = RCT1::GetColour(td4->track_spine_colour_v0);
td6->track_rail_colour[i] = RCT1::GetColour(td4->track_rail_colour_v0);
td6->track_support_colour[i] = RCT1::GetColour(td4->track_support_colour_v0);
// Mazes were only hedges
switch (td4->type)
{
case RCT1_RIDE_TYPE_HEDGE_MAZE:
td6->track_support_colour[i] = MAZE_WALL_TYPE_HEDGE;
break;
case RCT1_RIDE_TYPE_RIVER_RAPIDS:
td6->track_spine_colour[i] = COLOUR_WHITE;
td6->track_rail_colour[i] = COLOUR_WHITE;
break;
}
}
}
else
{
for (sint32 i = 0; i < RCT12_NUM_COLOUR_SCHEMES; i++)
{
td6->track_spine_colour[i] = RCT1::GetColour(td4->track_spine_colour[i]);
td6->track_rail_colour[i] = RCT1::GetColour(td4->track_rail_colour[i]);
td6->track_support_colour[i] = RCT1::GetColour(td4->track_support_colour[i]);
}
}
td6->depart_flags = td4->depart_flags;
td6->number_of_trains = td4->number_of_trains;
td6->number_of_cars_per_train = td4->number_of_cars_per_train;
td6->min_waiting_time = td4->min_waiting_time;
td6->max_waiting_time = td4->max_waiting_time;
td6->operation_setting = Math::Min(td4->operation_setting, RideProperties[td6->type].max_value);
td6->max_speed = td4->max_speed;
td6->average_speed = td4->average_speed;
td6->ride_length = td4->ride_length;
td6->max_positive_vertical_g = td4->max_positive_vertical_g;
td6->max_negative_vertical_g = td4->max_negative_vertical_g;
td6->max_lateral_g = td4->max_lateral_g;
td6->inversions = td4->num_inversions;
td6->drops = td4->num_drops;
td6->highest_drop_height = td4->highest_drop_height / 2;
td6->excitement = td4->excitement;
td6->intensity = td4->intensity;
td6->nausea = td4->nausea;
td6->upkeep_cost = td4->upkeep_cost;
if (version == 1)
{
td6->flags2 = td4->flags2;
}
td6->space_required_x = 255;
td6->space_required_y = 255;
td6->lift_hill_speed_num_circuits = 5;
// Move elements across
td6->elements = td4->elements;
td6->elementsSize = td4->elementsSize;
td6_reset_trailing_elements(td6);
td6_set_element_helper_pointers(td6, true);
SafeFree(td4);
return td6;
}
static rct_track_td6 * track_design_open_from_buffer(uint8 * src, size_t srcLength)
{
uint8 version = (src[7] >> 2) & 3;
if (version == 0 || version == 1)
{
return track_design_open_from_td4(src, srcLength);
}
else if (version != 2)
{
log_error("Unsupported track design.");
return nullptr;
}
rct_track_td6 * td6 = (rct_track_td6 *) calloc(1, sizeof(rct_track_td6));
if (td6 == nullptr)
{
log_error("Unable to allocate memory for TD6 data.");
return nullptr;
}
memcpy(td6, src, 0xA3);
td6->elementsSize = srcLength - 0xA3;
td6->elements = malloc(td6->elementsSize);
if (td6->elements == nullptr)
{
free(td6);
log_error("Unable to allocate memory for TD6 element data.");
return nullptr;
}
memcpy(td6->elements, src + 0xA3, td6->elementsSize);
// Cap operation setting
td6->operation_setting = Math::Min(td6->operation_setting, RideProperties[td6->type].max_value);
td6_set_element_helper_pointers(td6, false);
return td6;
}
static void td6_reset_trailing_elements(rct_track_td6 * td6)
{
void * lastElement;
if (td6->type == RIDE_TYPE_MAZE)
{
rct_td6_maze_element * mazeElement = (rct_td6_maze_element *) td6->elements;
while (mazeElement->all != 0)
{
mazeElement++;
}
lastElement = (void *) ((uintptr_t) mazeElement + 1);
size_t trailingSize = td6->elementsSize - (size_t)((uintptr_t) lastElement - (uintptr_t) td6->elements);
memset(lastElement, 0, trailingSize);
}
else
{
rct_td6_track_element * trackElement = (rct_td6_track_element *) td6->elements;
while (trackElement->type != 0xFF)
{
trackElement++;
}
lastElement = (void *) ((uintptr_t) trackElement + 1);
size_t trailingSize = td6->elementsSize - (size_t)((uintptr_t) lastElement - (uintptr_t) td6->elements);
memset(lastElement, 0xFF, trailingSize);
}
}
/**
*
* @param clearScenery Set when importing TD4 designs, to avoid corrupted data being interpreted as scenery.
*/
static void td6_set_element_helper_pointers(rct_track_td6 * td6, bool clearScenery)
{
uintptr_t sceneryElementsStart;
if (td6->type == RIDE_TYPE_MAZE)
{
td6->track_elements = nullptr;
td6->maze_elements = (rct_td6_maze_element *) td6->elements;
rct_td6_maze_element * maze = td6->maze_elements;
for (; maze->all != 0; maze++)
{
}
sceneryElementsStart = (uintptr_t)(++maze);
}
else
{
td6->maze_elements = nullptr;
td6->track_elements = (rct_td6_track_element *) td6->elements;
rct_td6_track_element * track = td6->track_elements;
for (; track->type != 0xFF; track++)
{
}
uintptr_t entranceElementsStart = (uintptr_t) track + 1;
rct_td6_entrance_element * entranceElement = (rct_td6_entrance_element *) entranceElementsStart;
td6->entrance_elements = entranceElement;
for (; entranceElement->z != -1; entranceElement++)
{
}
sceneryElementsStart = (uintptr_t) entranceElement + 1;
}
if (clearScenery)
{
td6->scenery_elements = nullptr;
}
else
{
rct_td6_scenery_element * sceneryElement = (rct_td6_scenery_element *) sceneryElementsStart;
td6->scenery_elements = sceneryElement;
}
}
void track_design_dispose(rct_track_td6 * td6)
{
if (td6 != nullptr)
{
free(td6->elements);
free(td6->name);
free(td6);
}
}
/**
*
* rct2: 0x006ABDB0
*/
static void track_design_load_scenery_objects(rct_track_td6 * td6)
{
object_manager_unload_all_objects();
// Load ride object
rct_object_entry * rideEntry = &td6->vehicle_object;
object_manager_load_object(rideEntry);
// Load scenery objects
rct_td6_scenery_element * scenery = td6->scenery_elements;
for (; scenery != nullptr && scenery->scenery_object.end_flag != 0xFF; scenery++)
{
rct_object_entry * sceneryEntry = &scenery->scenery_object;
object_manager_load_object(sceneryEntry);
}
}
/**
*
* rct2: 0x006D247A
*/
static void track_design_mirror_scenery(rct_track_td6 * td6)
{
rct_td6_scenery_element * scenery = td6->scenery_elements;
for (; scenery != nullptr && scenery->scenery_object.end_flag != 0xFF; scenery++)
{
uint8 entry_type, entry_index;
if (!find_object_in_entry_group(&scenery->scenery_object, &entry_type, &entry_index))
{
entry_type = object_entry_get_type(&scenery->scenery_object);
if (entry_type != OBJECT_TYPE_PATHS)
{
continue;
}
}
rct_scenery_entry * scenery_entry = (rct_scenery_entry *)object_entry_get_chunk(entry_type, entry_index);
switch (entry_type)
{
case OBJECT_TYPE_LARGE_SCENERY:
{
sint16 x1 = 0, x2 = 0, y1 = 0, y2 = 0;
for (rct_large_scenery_tile * tile = scenery_entry->large_scenery.tiles; tile->x_offset != -1; tile++)
{
if (x1 > tile->x_offset)
{
x1 = tile->x_offset;
}
if (x2 < tile->x_offset)
{
x2 = tile->x_offset;
}
if (y1 > tile->y_offset)
{
y1 = tile->y_offset;
}
if (y2 > tile->y_offset)
{
y2 = tile->y_offset;
}
}
switch (scenery->flags & 3)
{
case 0:
scenery->y = (-(scenery->y * 32 + y1) - y2) / 32;
break;
case 1:
scenery->x = (scenery->x * 32 + y2 + y1) / 32;
scenery->y = (-(scenery->y * 32)) / 32;
scenery->flags ^= (1 << 1);
break;
case 2:
scenery->y = (-(scenery->y * 32 - y2) + y1) / 32;
break;
case 3:
scenery->x = (scenery->x * 32 - y2 - y1) / 32;
scenery->y = (-(scenery->y * 32)) / 32;
scenery->flags ^= (1 << 1);
break;
}
break;
}
case OBJECT_TYPE_SMALL_SCENERY:
scenery->y = -scenery->y;
if (scenery_small_entry_has_flag(scenery_entry, SMALL_SCENERY_FLAG_DIAGONAL))
{
scenery->flags ^= (1 << 0);
if (!scenery_small_entry_has_flag(scenery_entry, SMALL_SCENERY_FLAG_FULL_TILE))
{
scenery->flags ^= (1 << 2);
}
break;
}
if (scenery->flags & (1 << 0))
{
scenery->flags ^= (1 << 1);
}
scenery->flags ^= (1 << 2);
break;
case OBJECT_TYPE_WALLS:
scenery->y = -scenery->y;
if (scenery->flags & (1 << 0))
{
scenery->flags ^= (1 << 1);
}
break;
case OBJECT_TYPE_PATHS:
scenery->y = -scenery->y;
if (scenery->flags & (1 << 5))
{
scenery->flags ^= (1 << 6);
}
uint8 flags = scenery->flags;
flags = ((flags & (1 << 3)) >> 2) | ((flags & (1 << 1)) << 2);
scenery->flags &= 0xF5;
scenery->flags |= flags;
}
}
}
/**
*
* rct2: 0x006D2443
*/
static void track_design_mirror_ride(rct_track_td6 * td6)
{
rct_td6_track_element * track = td6->track_elements;
for (; track->type != 0xFF; track++)
{
track->type = TrackElementMirrorMap[track->type];
}
rct_td6_entrance_element * entrance = td6->entrance_elements;
for (; entrance->z != -1; entrance++)
{
entrance->y = -entrance->y;
if (entrance->direction & 1)
{
entrance->direction ^= (1 << 1);
}
}
}
/** rct2: 0x00993EDC */
static constexpr const uint8 maze_segment_mirror_map[] = {
5, 4, 2, 7, 1, 0, 14, 3, 13, 12, 10, 15, 9, 8, 6, 11
};
/**
*
* rct2: 0x006D25FA
*/
static void track_design_mirror_maze(rct_track_td6 * td6)
{
rct_td6_maze_element * maze = td6->maze_elements;
for (; maze->all != 0; maze++)
{
maze->y = -maze->y;
if (maze->type == 0x8 || maze->type == 0x80)
{
if (maze->direction & 1)
{
maze->direction ^= (1 << 1);
}
continue;
}
uint16 maze_entry = maze->maze_entry;
uint16 new_entry = 0;
for (uint8 position = bitscanforward(maze_entry); position != 0xFF; position = bitscanforward(maze_entry))
{
maze_entry &= ~(1 << position);
new_entry |= (1 << maze_segment_mirror_map[position]);
}
maze->maze_entry = new_entry;
}
}
/**
*
* rct2: 0x006D2436
*/
void track_design_mirror(rct_track_td6 * td6)
{
if (td6->type == RIDE_TYPE_MAZE)
{
track_design_mirror_maze(td6);
}
else
{
track_design_mirror_ride(td6);
}
track_design_mirror_scenery(td6);
}
static void track_design_add_selection_tile(sint16 x, sint16 y)
{
LocationXY16 * selectionTile = gMapSelectionTiles;
// Subtract 2 because the tile gets incremented later on
for (; (selectionTile < gMapSelectionTiles + Util::CountOf(gMapSelectionTiles) - 2) && (selectionTile->x != -1);
selectionTile++)
{
if (selectionTile->x == x && selectionTile->y == y)
{
return;
}
if (selectionTile + 1 >= &gMapSelectionTiles[300])
{
return;
}
}
selectionTile->x = x;
selectionTile->y = y;
selectionTile++;
selectionTile->x = -1;
}
static void track_design_update_max_min_coordinates(sint16 x, sint16 y, sint16 z)
{
gTrackPreviewMin.x = Math::Min(gTrackPreviewMin.x, x);
gTrackPreviewMax.x = Math::Max(gTrackPreviewMax.x, x);
gTrackPreviewMin.y = Math::Min(gTrackPreviewMin.y, y);
gTrackPreviewMax.y = Math::Max(gTrackPreviewMax.y, y);
gTrackPreviewMin.z = Math::Min(gTrackPreviewMin.z, z);
gTrackPreviewMax.z = Math::Max(gTrackPreviewMax.z, z);
}
/**
*
* rct2: 0x006D0964
*/
static sint32
track_design_place_scenery(rct_td6_scenery_element * scenery_start, sint32 originX, sint32 originY, sint32 originZ)
{
for (uint8 mode = 0; mode <= 1; mode++)
{
if (scenery_start->scenery_object.end_flag != 0xFF)
{
_trackDesignPlaceStateHasScenery = true;
}
if (!_trackDesignPlaceStatePlaceScenery)
{
continue;
}
for (rct_td6_scenery_element * scenery = scenery_start; scenery->scenery_object.end_flag != 0xFF; scenery++)
{
uint8 rotation = _currentTrackPieceDirection;
LocationXY8 tile = {(uint8) (originX / 32), (uint8) (originY / 32)};
switch (rotation & 3)
{
case TILE_ELEMENT_DIRECTION_WEST:
tile.x += scenery->x;
tile.y += scenery->y;
break;
case TILE_ELEMENT_DIRECTION_NORTH:
tile.x += scenery->y;
tile.y -= scenery->x;
break;
case TILE_ELEMENT_DIRECTION_EAST:
tile.x -= scenery->x;
tile.y -= scenery->y;
break;
case TILE_ELEMENT_DIRECTION_SOUTH:
tile.x -= scenery->y;
tile.y += scenery->x;
break;
}
LocationXY16 mapCoord = {(sint16) (tile.x * 32), (sint16) (tile.y * 32)};
track_design_update_max_min_coordinates(mapCoord.x, mapCoord.y, originZ);
if (_trackDesignPlaceOperation == PTD_OPERATION_DRAW_OUTLINES && mode == 0)
{
uint8 new_tile = 1;
LocationXY16 * selectionTile = gMapSelectionTiles;
for (; selectionTile->x != -1; selectionTile++)
{
if (selectionTile->x == tile.x && selectionTile->y == tile.y)
{
new_tile = 0;
break;
}
// Need to subtract one because selectionTile in following block is incremented
if (selectionTile + 1 >= &gMapSelectionTiles[Util::CountOf(gMapSelectionTiles) - 1])
{
new_tile = 0;
break;
}
}
if (new_tile)
{
selectionTile->x = tile.x;
selectionTile->y = tile.y;
selectionTile++;
selectionTile->x = -1;
}
}
if (_trackDesignPlaceOperation == PTD_OPERATION_CLEAR_OUTLINES && mode == 0)
{
uint8 entry_type, entry_index;
if (!find_object_in_entry_group(&scenery->scenery_object, &entry_type, &entry_index))
{
entry_type = object_entry_get_type(&scenery->scenery_object);
if (entry_type != OBJECT_TYPE_PATHS)
{
entry_type = 0xFF;
}
if (gScreenFlags & SCREEN_FLAGS_TRACK_DESIGNER)
{
entry_type = 0xFF;
}
entry_index = 0;
for (rct_footpath_entry * path = get_footpath_entry(0);
entry_index < object_entry_group_counts[OBJECT_TYPE_PATHS];
path = get_footpath_entry(entry_index), entry_index++
)
{
if (path == nullptr)
{
continue;
}
if (path->flags & FOOTPATH_ENTRY_FLAG_SHOW_ONLY_IN_SCENARIO_EDITOR)
{
continue;
}
}
if (entry_index == object_entry_group_counts[OBJECT_TYPE_PATHS])
{
entry_type = 0xFF;
}
}
sint32 z;
const uint32 flags = GAME_COMMAND_FLAG_APPLY |
GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED |
GAME_COMMAND_FLAG_5 |
GAME_COMMAND_FLAG_GHOST;
switch (entry_type)
{
case OBJECT_TYPE_SMALL_SCENERY:
{
//bl
rotation += scenery->flags;
rotation &= 3;
//bh
uint8 quadrant = (scenery->flags >> 2) + _currentTrackPieceDirection;
quadrant &= 3;
uint8 bh = rotation | (quadrant << 6) | TILE_ELEMENT_TYPE_SMALL_SCENERY;
rct_scenery_entry * small_scenery = get_small_scenery_entry(entry_index);
if (!(!scenery_small_entry_has_flag(small_scenery, SMALL_SCENERY_FLAG_FULL_TILE) &&
scenery_small_entry_has_flag(small_scenery, SMALL_SCENERY_FLAG_DIAGONAL)) &&
scenery_small_entry_has_flag(small_scenery,
SMALL_SCENERY_FLAG_DIAGONAL | SMALL_SCENERY_FLAG_HALF_SPACE |
SMALL_SCENERY_FLAG_THREE_QUARTERS))
{
bh &= 0x3F;
}
z = (scenery->z * 8 + originZ) / 8;
game_do_command(
mapCoord.x,
flags | bh << 8,
mapCoord.y,
(entry_index << 8) | z,
GAME_COMMAND_REMOVE_SCENERY,
0,
0);
break;
}
case OBJECT_TYPE_LARGE_SCENERY:
z = (scenery->z * 8 + originZ) / 8;
game_do_command(
mapCoord.x,
flags | (((rotation + scenery->flags) & 0x3) << 8),
mapCoord.y,
z,
GAME_COMMAND_REMOVE_LARGE_SCENERY,
0,
0);
break;
case OBJECT_TYPE_WALLS:
{
z = (scenery->z * 8 + originZ) / 8;
uint8_t direction = (rotation + scenery->flags) & TILE_ELEMENT_DIRECTION_MASK;
TileCoordsXYZD wallLocation = { tile.x, tile.y, z, direction };
auto wallRemoveAction = WallRemoveAction(wallLocation);
wallRemoveAction.SetFlags(flags);
GameActions::Execute(&wallRemoveAction);
}
break;
case OBJECT_TYPE_PATHS:
z = (scenery->z * 8 + originZ) / 8;
footpath_remove(
mapCoord.x,
mapCoord.y,
z,
flags);
break;
}
}
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_PLACE_Z)
{
sint32 z = scenery->z * 8 + _trackDesignPlaceZ;
if (z < _trackDesignPlaceSceneryZ)
{
_trackDesignPlaceSceneryZ = z;
}
}
if (_trackDesignPlaceOperation == PTD_OPERATION_1 ||
_trackDesignPlaceOperation == PTD_OPERATION_2 ||
_trackDesignPlaceOperation == PTD_OPERATION_GET_PLACE_Z ||
_trackDesignPlaceOperation == PTD_OPERATION_4 ||
_trackDesignPlaceOperation == PTD_OPERATION_GET_COST
)
{
uint8 entry_type, entry_index;
if (!find_object_in_entry_group(&scenery->scenery_object, &entry_type, &entry_index))
{
entry_type = object_entry_get_type(&scenery->scenery_object);
if (entry_type != OBJECT_TYPE_PATHS)
{
_trackDesignPlaceStateSceneryUnavailable = true;
continue;
}
if (gScreenFlags & SCREEN_FLAGS_TRACK_DESIGNER)
{
_trackDesignPlaceStateSceneryUnavailable = true;
continue;
}
entry_index = 0;
for (rct_footpath_entry * path = get_footpath_entry(0);
entry_index < object_entry_group_counts[OBJECT_TYPE_PATHS];
path = get_footpath_entry(entry_index), entry_index++)
{
if (path == nullptr)
{
continue;
}
if (path->flags & FOOTPATH_ENTRY_FLAG_SHOW_ONLY_IN_SCENARIO_EDITOR)
{
continue;
}
}
if (entry_index == object_entry_group_counts[OBJECT_TYPE_PATHS])
{
_trackDesignPlaceStateSceneryUnavailable = true;
continue;
}
}
money32 cost;
sint16 z;
uint8 bl;
uint8 quadrant;
switch (entry_type)
{
case OBJECT_TYPE_SMALL_SCENERY:
if (mode != 0)
{
continue;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_PLACE_Z)
{
continue;
}
rotation += scenery->flags;
rotation &= 3;
z = scenery->z * 8 + originZ;
quadrant = ((scenery->flags >> 2) + _currentTrackPieceDirection) & 3;
bl = 0x81;
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_COST)
{
bl = 0xA9;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_4)
{
bl = 0xE9;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_1)
{
bl = 0x80;
}
gGameCommandErrorTitle = STR_CANT_POSITION_THIS_HERE;
cost = game_do_command(
mapCoord.x,
bl | (entry_index << 8),
mapCoord.y,
quadrant | (scenery->primary_colour << 8),
GAME_COMMAND_PLACE_SCENERY,
rotation | (scenery->secondary_colour << 16),
z
);
if (cost == MONEY32_UNDEFINED)
{
cost = 0;
}
break;
case OBJECT_TYPE_LARGE_SCENERY:
if (mode != 0)
{
continue;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_PLACE_Z)
{
continue;
}
rotation += scenery->flags;
rotation &= 3;
z = scenery->z * 8 + originZ;
bl = 0x81;
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_COST)
{
bl = 0xA9;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_4)
{
bl = 0xE9;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_1)
{
bl = 0x80;
}
cost = game_do_command(
mapCoord.x,
bl | (rotation << 8),
mapCoord.y,
scenery->primary_colour | (scenery->secondary_colour << 8),
GAME_COMMAND_PLACE_LARGE_SCENERY,
entry_index,
z
);
if (cost == MONEY32_UNDEFINED)
{
cost = 0;
}
break;
case OBJECT_TYPE_WALLS:
if (mode != 0)
{
continue;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_PLACE_Z)
{
continue;
}
z = scenery->z * 8 + originZ;
rotation += scenery->flags;
rotation &= 3;
bl = 1;
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_COST)
{
bl = 0xA9;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_4)
{
bl = 105;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_1)
{
bl = 0;
}
gGameCommandErrorTitle = STR_CANT_BUILD_PARK_ENTRANCE_HERE;
cost = game_do_command(
mapCoord.x,
bl | (entry_index << 8),
mapCoord.y,
rotation | (scenery->primary_colour << 8),
GAME_COMMAND_PLACE_WALL,
z,
scenery->secondary_colour | ((scenery->flags & 0xFC) << 6)
);
if (cost == MONEY32_UNDEFINED)
{
cost = 0;
}
break;
case OBJECT_TYPE_PATHS:
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_PLACE_Z)
{
continue;
}
z = (scenery->z * 8 + originZ) / 8;
if (mode == 0)
{
if (scenery->flags & (1 << 7))
{
//dh
entry_index |= (1 << 7);
}
uint8 bh = ((scenery->flags & 0xF) << rotation);
bl = bh >> 4;
bh = (bh | bl) & 0xF;
bl = (((scenery->flags >> 5) + rotation) & 3) << 5;
bh |= bl;
bh |= scenery->flags & 0x90;
bl = 1;
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_COST)
{
bl = 41;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_4)
{
bl = 105;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_1)
{
bl = 0;
}
gGameCommandErrorTitle = STR_RIDE_CONSTRUCTION_CANT_CONSTRUCT_THIS_HERE;
cost = game_do_command(mapCoord.x, bl | (bh << 8), mapCoord.y,
z | (entry_index << 8),
GAME_COMMAND_PLACE_PATH_FROM_TRACK, 0, 0);
}
else
{
if (_trackDesignPlaceOperation == PTD_OPERATION_1)
{
continue;
}
rct_tile_element * tile_element = map_get_path_element_at(mapCoord.x / 32, mapCoord.y / 32, z);
if (tile_element == nullptr)
{
continue;
}
footpath_queue_chain_reset();
footpath_remove_edges_at(mapCoord.x, mapCoord.y, tile_element);
bl = 1;
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_COST)
{
bl = 41;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_4)
{
bl = 105;
}
footpath_connect_edges(mapCoord.x, mapCoord.y, tile_element, bl);
footpath_update_queue_chains();
continue;
}
break;
default:
_trackDesignPlaceStateSceneryUnavailable = true;
continue;
}
_trackDesignPlaceCost = add_clamp_money32(_trackDesignPlaceCost, cost);
if (_trackDesignPlaceOperation != PTD_OPERATION_2)
{
if (cost == MONEY32_UNDEFINED)
{
_trackDesignPlaceCost = MONEY32_UNDEFINED;
}
}
if (_trackDesignPlaceCost != MONEY32_UNDEFINED)
{
continue;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_2)
{
continue;
}
return 0;
}
}
}
return 1;
}
static sint32 track_design_place_maze(rct_track_td6 * td6, sint16 x, sint16 y, sint16 z, uint8 rideIndex)
{
if (_trackDesignPlaceOperation == PTD_OPERATION_DRAW_OUTLINES)
{
gMapSelectionTiles->x = -1;
gMapSelectArrowPosition.x = x;
gMapSelectArrowPosition.y = y;
gMapSelectArrowPosition.z = tile_element_height(x, y) & 0xFFFF;
gMapSelectArrowDirection = _currentTrackPieceDirection;
}
_trackDesignPlaceZ = 0;
_trackDesignPlaceCost = 0;
rct_td6_maze_element * maze_element = td6->maze_elements;
for (; maze_element->all != 0; maze_element++)
{
uint8 rotation = _currentTrackPieceDirection & 3;
sint16 tmpX = maze_element->x * 32;
sint16 tmpY = maze_element->y * 32;
rotate_map_coordinates(&tmpX, &tmpY, rotation);
CoordsXY mapCoord = { tmpX, tmpY };
mapCoord.x += x;
mapCoord.y += y;
track_design_update_max_min_coordinates(mapCoord.x, mapCoord.y, z);
if (_trackDesignPlaceOperation == PTD_OPERATION_DRAW_OUTLINES)
{
track_design_add_selection_tile(mapCoord.x, mapCoord.y);
}
if (_trackDesignPlaceOperation == PTD_OPERATION_1 ||
_trackDesignPlaceOperation == PTD_OPERATION_2 ||
_trackDesignPlaceOperation == PTD_OPERATION_4 ||
_trackDesignPlaceOperation == PTD_OPERATION_GET_COST
)
{
uint8 flags;
money32 cost = 0;
uint16 maze_entry;
switch (maze_element->type)
{
case MAZE_ELEMENT_TYPE_ENTRANCE:
// entrance
rotation += maze_element->direction;
rotation &= 3;
flags = GAME_COMMAND_FLAG_APPLY;
gGameCommandErrorTitle = STR_RIDE_CONSTRUCTION_CANT_CONSTRUCT_THIS_HERE;
if (_trackDesignPlaceOperation == PTD_OPERATION_1)
{
cost = game_do_command(mapCoord.x, 0 | rotation << 8, mapCoord.y, (z / 16) & 0xFF,
GAME_COMMAND_PLACE_RIDE_ENTRANCE_OR_EXIT, -1, 0);
}
else
{
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_COST)
{
flags = GAME_COMMAND_FLAG_APPLY | GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED | GAME_COMMAND_FLAG_5;
}
else if (_trackDesignPlaceOperation == PTD_OPERATION_4)
{
flags = GAME_COMMAND_FLAG_APPLY | GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED | GAME_COMMAND_FLAG_5 |
GAME_COMMAND_FLAG_GHOST;
}
cost = game_do_command(mapCoord.x, flags | rotation << 8, mapCoord.y, rideIndex,
GAME_COMMAND_PLACE_RIDE_ENTRANCE_OR_EXIT, 0, 0);
}
if (cost != MONEY32_UNDEFINED)
{
_trackDesignPlaceStateEntranceExitPlaced = true;
}
break;
case MAZE_ELEMENT_TYPE_EXIT:
// exit
rotation += maze_element->direction;
rotation &= 3;
flags = GAME_COMMAND_FLAG_APPLY;
gGameCommandErrorTitle = STR_RIDE_CONSTRUCTION_CANT_CONSTRUCT_THIS_HERE;
if (_trackDesignPlaceOperation == PTD_OPERATION_1)
{
cost = game_do_command(mapCoord.x, 0 | rotation << 8, mapCoord.y, ((z / 16) & 0xFF) | (1 << 8),
GAME_COMMAND_PLACE_RIDE_ENTRANCE_OR_EXIT, -1, 0);
}
else
{
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_COST)
{
flags = GAME_COMMAND_FLAG_APPLY | GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED | GAME_COMMAND_FLAG_5;
}
else if (_trackDesignPlaceOperation == PTD_OPERATION_4)
{
flags = GAME_COMMAND_FLAG_APPLY | GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED | GAME_COMMAND_FLAG_5 |
GAME_COMMAND_FLAG_GHOST;
}
cost = game_do_command(mapCoord.x, flags | rotation << 8, mapCoord.y, rideIndex | (1 << 8),
GAME_COMMAND_PLACE_RIDE_ENTRANCE_OR_EXIT, 0, 0);
}
if (cost != MONEY32_UNDEFINED)
{
_trackDesignPlaceStateEntranceExitPlaced = true;
}
break;
default:
maze_entry = rol16(maze_element->maze_entry, rotation * 4);
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_COST)
{
flags = GAME_COMMAND_FLAG_APPLY | GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED | GAME_COMMAND_FLAG_5;
}
else if (_trackDesignPlaceOperation == PTD_OPERATION_4)
{
flags = GAME_COMMAND_FLAG_APPLY | GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED | GAME_COMMAND_FLAG_5 |
GAME_COMMAND_FLAG_GHOST;
}
else if (_trackDesignPlaceOperation == PTD_OPERATION_1)
{
flags = 0;
}
else
{
flags = GAME_COMMAND_FLAG_APPLY;
}
gGameCommandErrorTitle = STR_RIDE_CONSTRUCTION_CANT_CONSTRUCT_THIS_HERE;
cost = game_do_command(mapCoord.x, flags | (maze_entry & 0xFF) << 8, mapCoord.y,
rideIndex | (maze_entry & 0xFF00), GAME_COMMAND_PLACE_MAZE_DESIGN, z, 0);
break;
}
_trackDesignPlaceCost += cost;
if (cost == MONEY32_UNDEFINED)
{
_trackDesignPlaceCost = cost;
return 0;
}
}
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_PLACE_Z)
{
if (mapCoord.x < 0)
{
continue;
}
if (mapCoord.y < 0)
{
continue;
}
if (mapCoord.x >= 256 * 32)
{
continue;
}
if (mapCoord.y >= 256 * 32)
{
continue;
}
rct_tile_element * tile_element = map_get_surface_element_at(mapCoord);
sint16 map_height = tile_element->base_height * 8;
if (tile_element->properties.surface.slope & TILE_ELEMENT_SLOPE_ALL_CORNERS_UP)
{
map_height += 16;
if (tile_element->properties.surface.slope & TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT)
{
map_height += 16;
}
}
if (surface_get_water_height(tile_element) > 0)
{
sint16 water_height = surface_get_water_height(tile_element);
water_height *= 16;
if (water_height > map_height)
{
map_height = water_height;
}
}
sint16 temp_z = z + _trackDesignPlaceZ - map_height;
if (temp_z < 0)
{
_trackDesignPlaceZ -= temp_z;
}
}
}
if (_trackDesignPlaceOperation == PTD_OPERATION_CLEAR_OUTLINES)
{
ride_action_modify(rideIndex, RIDE_MODIFY_DEMOLISH, GAME_COMMAND_FLAG_APPLY | GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED | GAME_COMMAND_FLAG_5 | GAME_COMMAND_FLAG_GHOST);
}
gTrackPreviewOrigin.x = x;
gTrackPreviewOrigin.y = y;
gTrackPreviewOrigin.z = z;
return 1;
}
static bool track_design_place_ride(rct_track_td6 * td6, sint16 x, sint16 y, sint16 z, uint8 rideIndex)
{
const rct_preview_track * * trackBlockArray = (ride_type_has_flag(td6->type, RIDE_TYPE_FLAG_HAS_TRACK)) ? TrackBlocks : FlatRideTrackBlocks;
gTrackPreviewOrigin.x = x;
gTrackPreviewOrigin.y = y;
gTrackPreviewOrigin.z = z;
if (_trackDesignPlaceOperation == PTD_OPERATION_DRAW_OUTLINES)
{
gMapSelectionTiles->x = -1;
gMapSelectArrowPosition.x = x;
gMapSelectArrowPosition.y = y;
gMapSelectArrowPosition.z = tile_element_height(x, y) & 0xFFFF;
gMapSelectArrowDirection = _currentTrackPieceDirection;
}
_trackDesignPlaceZ = 0;
_trackDesignPlaceCost = 0;
uint8 rotation = _currentTrackPieceDirection;
// Track elements
rct_td6_track_element * track = td6->track_elements;
for (; track->type != 0xFF; track++)
{
uint8 trackType = track->type;
if (trackType == TRACK_ELEM_INVERTED_90_DEG_UP_TO_FLAT_QUARTER_LOOP)
{
trackType = 0xFF;
}
track_design_update_max_min_coordinates(x, y, z);
switch (_trackDesignPlaceOperation)
{
case PTD_OPERATION_DRAW_OUTLINES:
for (const rct_preview_track * trackBlock = trackBlockArray[trackType]; trackBlock->index != 0xFF; trackBlock++)
{
LocationXY16 tile = {x, y};
map_offset_with_rotation(&tile.x, &tile.y, trackBlock->x, trackBlock->y, rotation);
track_design_update_max_min_coordinates(tile.x, tile.y, z);
track_design_add_selection_tile(tile.x, tile.y);
}
break;
case PTD_OPERATION_CLEAR_OUTLINES:
{
const rct_track_coordinates * trackCoordinates = &TrackCoordinates[trackType];
const rct_preview_track * trackBlock = trackBlockArray[trackType];
sint32 tempZ = z - trackCoordinates->z_begin + trackBlock->z;
uint8 flags =
GAME_COMMAND_FLAG_APPLY |
GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED |
GAME_COMMAND_FLAG_5 |
GAME_COMMAND_FLAG_GHOST;
ride_remove_track_piece(x, y, tempZ, rotation & 3, trackType, flags);
break;
}
case PTD_OPERATION_1:
case PTD_OPERATION_2:
case PTD_OPERATION_4:
case PTD_OPERATION_GET_COST:
{
const rct_track_coordinates * trackCoordinates = &TrackCoordinates[trackType];
//di
sint16 tempZ = z - trackCoordinates->z_begin;
uint32 trackColour = (track->flags >> 4) & 0x3;
uint32 brakeSpeed = (track->flags & 0x0F) * 2;
uint32 seatRotation = track->flags & 0x0F;
uint32 edi =
(brakeSpeed << 16) |
(seatRotation << 28) |
(trackColour << 24) |
(tempZ & 0xFFFF);
sint32 edx = _currentRideIndex | (trackType << 8);
if (track->flags & TRACK_ELEMENT_TYPE_FLAG_CHAIN_LIFT)
{
edx |= 0x10000;
}
if (track->flags & TRACK_ELEMENT_FLAG_INVERTED)
{
edx |= 0x20000;
}
uint8 flags = GAME_COMMAND_FLAG_APPLY;
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_COST)
{
flags |= GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED;
flags |= GAME_COMMAND_FLAG_5;
}
else if (_trackDesignPlaceOperation == PTD_OPERATION_4)
{
flags |= GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED;
flags |= GAME_COMMAND_FLAG_5;
flags |= GAME_COMMAND_FLAG_GHOST;
}
else if (_trackDesignPlaceOperation == PTD_OPERATION_1)
{
flags = 0;
}
gGameCommandErrorTitle = STR_RIDE_CONSTRUCTION_CANT_CONSTRUCT_THIS_HERE;
money32 cost = game_do_command(x, flags | (rotation << 8), y, edx, GAME_COMMAND_PLACE_TRACK, edi, 0);
_trackDesignPlaceCost += cost;
if (cost == MONEY32_UNDEFINED)
{
_trackDesignPlaceCost = cost;
return false;
}
break;
}
case PTD_OPERATION_GET_PLACE_Z:
{
sint32 tempZ = z - TrackCoordinates[trackType].z_begin;
for (const rct_preview_track * trackBlock = trackBlockArray[trackType]; trackBlock->index != 0xFF; trackBlock++)
{
sint16 tmpX = x;
sint16 tmpY = y;
map_offset_with_rotation(&tmpX, &tmpY, trackBlock->x, trackBlock->y, rotation);
CoordsXY tile = { tmpX, tmpY };
if (tile.x < 0 || tile.y < 0 || tile.x >= (256 * 32) || tile.y >= (256 * 32))
{
continue;
}
rct_tile_element * tileElement = map_get_surface_element_at(tile);
if (tileElement == nullptr)
{
return false;
}
sint32 height = tileElement->base_height * 8;
if (tileElement->properties.surface.slope & TILE_ELEMENT_SLOPE_ALL_CORNERS_UP)
{
height += 16;
if (tileElement->properties.surface.slope & TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT)
{
height += 16;
}
}
uint8 water_height = surface_get_water_height(tileElement) * 16;
if (water_height > 0 && water_height > height)
{
height = water_height;
}
sint32 heightDifference = tempZ + _trackDesignPlaceZ + trackBlock->z - height;
if (heightDifference < 0)
{
_trackDesignPlaceZ -= heightDifference;
}
}
break;
}
}
const rct_track_coordinates * track_coordinates = &TrackCoordinates[trackType];
map_offset_with_rotation(&x, &y, track_coordinates->x, track_coordinates->y, rotation);
z -= track_coordinates->z_begin;
z += track_coordinates->z_end;
rotation = (rotation + track_coordinates->rotation_end - track_coordinates->rotation_begin) & 3;
if (track_coordinates->rotation_end & (1 << 2))
{
rotation |= (1 << 2);
}
else
{
x += CoordsDirectionDelta[rotation].x;
y += CoordsDirectionDelta[rotation].y;
}
}
// Entrance elements
rct_td6_entrance_element * entrance = td6->entrance_elements;
for (; entrance->z != -1; entrance++)
{
rotation = _currentTrackPieceDirection & 3;
x = entrance->x;
y = entrance->y;
rotate_map_coordinates(&x, &y, rotation);
x += gTrackPreviewOrigin.x;
y += gTrackPreviewOrigin.y;
track_design_update_max_min_coordinates(x, y, z);
switch (_trackDesignPlaceOperation)
{
case PTD_OPERATION_DRAW_OUTLINES:
track_design_add_selection_tile(x, y);
break;
case PTD_OPERATION_1:
case PTD_OPERATION_2:
case PTD_OPERATION_4:
case PTD_OPERATION_GET_COST:
{
rotation = (rotation + entrance->direction) & 3;
uint8 isExit = 0;
if (entrance->direction & (1 << 7))
{
isExit = 1;
}
if (_trackDesignPlaceOperation != PTD_OPERATION_1)
{
LocationXY16 tile = {
(sint16) (x + CoordsDirectionDelta[rotation].x),
(sint16) (y + CoordsDirectionDelta[rotation].y)
};
rct_tile_element * tile_element = map_get_first_element_at(tile.x >> 5, tile.y >> 5);
z = gTrackPreviewOrigin.z / 8;
z += (entrance->z == (sint8) (uint8) 0x80) ? -1 : entrance->z;
do
{
if (tile_element->GetType() != TILE_ELEMENT_TYPE_TRACK)
{
continue;
}
if (tile_element->base_height != z)
{
continue;
}
sint32 stationIndex = tile_element_get_station(tile_element);
uint8 bl = 1;
if (_trackDesignPlaceOperation == PTD_OPERATION_GET_COST)
{
bl = 41;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_4)
{
bl = 105;
}
if (_trackDesignPlaceOperation == PTD_OPERATION_1)
{
bl = 0;
}
gGameCommandErrorTitle = STR_RIDE_CONSTRUCTION_CANT_CONSTRUCT_THIS_HERE;
money32 cost = game_do_command(x, bl | (rotation << 8), y,
rideIndex | (isExit << 8),
GAME_COMMAND_PLACE_RIDE_ENTRANCE_OR_EXIT,
stationIndex, 0);
_trackDesignPlaceCost += cost;
if (cost == MONEY32_UNDEFINED)
{
_trackDesignPlaceCost = cost;
return false;
}
_trackDesignPlaceStateEntranceExitPlaced = true;
break;
}
while (!(tile_element++)->IsLastForTile());
}
else
{
z = (entrance->z == (sint8) (uint8) 0x80) ? -1 : entrance->z;
z *= 8;
z += gTrackPreviewOrigin.z;
z >>= 4;
gGameCommandErrorTitle = STR_RIDE_CONSTRUCTION_CANT_CONSTRUCT_THIS_HERE;
money32 cost = game_do_command(x, 0 | (rotation << 8), y, z | (isExit << 8),
GAME_COMMAND_PLACE_RIDE_ENTRANCE_OR_EXIT, -1, 0);
if (cost == MONEY32_UNDEFINED)
{
_trackDesignPlaceCost = cost;
return false;
}
else
{
_trackDesignPlaceCost += cost;
_trackDesignPlaceStateEntranceExitPlaced = true;
}
}
break;
}
}
}
if (_trackDesignPlaceOperation == PTD_OPERATION_CLEAR_OUTLINES)
{
sub_6CB945(_currentRideIndex);
ride_delete(_currentRideIndex);
}
return true;
}
/**
* Places a virtual track. This can involve highlighting the surface tiles and showing the track layout. It is also used by
* the track preview window to place the whole track.
* Depending on the value of bl it modifies the function.
* bl == 0, Draw outlines on the ground
* bl == 1,
* bl == 2,
* bl == 3, Returns the z value of a successful placement. Only lower 16 bits are the value, the rest may be garbage?
* bl == 4,
* bl == 5, Returns cost to create the track. All 32 bits are used. Places the track. (used by the preview)
* bl == 6, Clear white outlined track.
* rct2: 0x006D01B3
*/
sint32 place_virtual_track(rct_track_td6 * td6, uint8 ptdOperation, bool placeScenery, uint8 rideIndex, sint16 x, sint16 y, sint16 z)
{
// Previously byte_F4414E was cleared here
_trackDesignPlaceStatePlaceScenery = placeScenery;
_trackDesignPlaceStateEntranceExitPlaced = false;
_trackDesignPlaceStateSceneryUnavailable = false;
_trackDesignPlaceStateHasScenery = false;
_trackDesignPlaceOperation = ptdOperation;
if (gTrackDesignSceneryToggle)
{
_trackDesignPlaceStatePlaceScenery = false;
}
_currentRideIndex = rideIndex;
gTrackPreviewMin.x = x;
gTrackPreviewMin.y = y;
gTrackPreviewMin.z = z;
gTrackPreviewMax.x = x;
gTrackPreviewMax.y = y;
gTrackPreviewMax.z = z;
_trackDesignPlaceSceneryZ = 0;
uint8 track_place_success = 0;
if (td6->type == RIDE_TYPE_MAZE)
{
track_place_success = track_design_place_maze(td6, x, y, z, rideIndex);
}
else
{
track_place_success = track_design_place_ride(td6, x, y, z, rideIndex);
}
// Scenery elements
rct_td6_scenery_element * scenery = td6->scenery_elements;
if (track_place_success && scenery != nullptr)
{
if (!track_design_place_scenery(
scenery,
gTrackPreviewOrigin.x,
gTrackPreviewOrigin.y,
gTrackPreviewOrigin.z
))
{
return _trackDesignPlaceCost;
}
}
// 0x6D0FE6
if (_trackDesignPlaceOperation == PTD_OPERATION_DRAW_OUTLINES)
{
gMapSelectFlags |= MAP_SELECT_FLAG_ENABLE_CONSTRUCT;
gMapSelectFlags |= MAP_SELECT_FLAG_ENABLE_ARROW;
gMapSelectFlags &= ~MAP_SELECT_FLAG_GREEN;
map_invalidate_map_selection_tiles();
}
if (ptdOperation == PTD_OPERATION_GET_PLACE_Z)
{
// Change from vanilla: originally, _trackDesignPlaceSceneryZ was not subtracted
// from _trackDesignPlaceZ, causing bug #259.
return _trackDesignPlaceZ - _trackDesignPlaceSceneryZ;
}
return _trackDesignPlaceCost;
}
/**
*
* rct2: 0x006D2189
* ebx = ride_id
* cost = edi
*/
static bool track_design_place_preview(rct_track_td6 * td6, money32 * cost, uint8 * rideId, uint8 * flags)
{
*flags = 0;
uint8 entry_type, entry_index;
if (!find_object_in_entry_group(&td6->vehicle_object, &entry_type, &entry_index))
{
entry_index = RIDE_ENTRY_INDEX_NULL;
}
uint8 rideIndex;
uint8 colour;
uint8 rideCreateFlags = GAME_COMMAND_FLAG_APPLY | GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED | GAME_COMMAND_FLAG_5;
if (ride_create_command(td6->type, entry_index, rideCreateFlags, &rideIndex, &colour) == MONEY32_UNDEFINED)
{
return false;
}
Ride * ride = get_ride(rideIndex);
rct_string_id new_ride_name = user_string_allocate(USER_STRING_HIGH_ID_NUMBER | USER_STRING_DUPLICATION_PERMITTED,
"");
if (new_ride_name != 0)
{
rct_string_id old_name = ride->name;
ride->name = new_ride_name;
user_string_free(old_name);
}
ride->entrance_style = td6->entrance_style;
for (sint32 i = 0; i < RCT12_NUM_COLOUR_SCHEMES; i++)
{
ride->track_colour_main[i] = td6->track_spine_colour[i];
ride->track_colour_additional[i] = td6->track_rail_colour[i];
ride->track_colour_supports[i] = td6->track_support_colour[i];
}
// Flat rides need their vehicle colours loaded for display
// in the preview window
if (!ride_type_has_flag(td6->type, RIDE_TYPE_FLAG_HAS_TRACK))
{
for (sint32 i = 0; i < RCT12_MAX_VEHICLE_COLOURS; i++)
{
ride->vehicle_colours[i] = td6->vehicle_colours[i];
ride->vehicle_colours_extended[i] = td6->vehicle_additional_colour[i];
}
}
byte_9D8150 = true;
uint8 backup_rotation = _currentTrackPieceDirection;
uint32 backup_park_flags = gParkFlags;
gParkFlags &= ~PARK_FLAGS_FORBID_HIGH_CONSTRUCTION;
sint32 mapSize = gMapSize << 4;
_currentTrackPieceDirection = 0;
sint32 z = place_virtual_track(td6, PTD_OPERATION_GET_PLACE_Z, true, 0, mapSize, mapSize, 16);
if (_trackDesignPlaceStateHasScenery)
{
*flags |= TRACK_DESIGN_FLAG_HAS_SCENERY;
}
z += 16 - _trackDesignPlaceSceneryZ;
bool placeScenery = true;
if (_trackDesignPlaceStateSceneryUnavailable)
{
placeScenery = false;
*flags |= TRACK_DESIGN_FLAG_SCENERY_UNAVAILABLE;
}
money32 resultCost = place_virtual_track(td6, PTD_OPERATION_GET_COST, placeScenery, rideIndex, mapSize, mapSize, z);
gParkFlags = backup_park_flags;
if (resultCost != MONEY32_UNDEFINED)
{
if (!find_object_in_entry_group(&td6->vehicle_object, &entry_type, &entry_index))
{
*flags |= TRACK_DESIGN_FLAG_VEHICLE_UNAVAILABLE;
}
else if (!ride_entry_is_invented(entry_index) && !gCheatsIgnoreResearchStatus)
{
*flags |= TRACK_DESIGN_FLAG_VEHICLE_UNAVAILABLE;
}
_currentTrackPieceDirection = backup_rotation;
byte_9D8150 = false;
*cost = resultCost;
*rideId = rideIndex;
return true;
}
else
{
_currentTrackPieceDirection = backup_rotation;
user_string_free(ride->name);
ride->type = RIDE_TYPE_NULL;
byte_9D8150 = false;
return false;
}
}
static money32 place_track_design(sint16 x, sint16 y, sint16 z, uint8 flags, uint8 * outRideIndex)
{
*outRideIndex = 255;
gCommandPosition.x = x + 16;
gCommandPosition.y = y + 16;
gCommandPosition.z = z;
if (!(flags & GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED))
{
if (game_is_paused() && !gCheatsBuildInPauseMode)
{
gGameCommandErrorText = STR_CONSTRUCTION_NOT_POSSIBLE_WHILE_GAME_IS_PAUSED;
return MONEY32_UNDEFINED;
}
}
rct_track_td6 * td6 = gActiveTrackDesign;
if (td6 == nullptr)
{
return MONEY32_UNDEFINED;
}
rct_object_entry * rideEntryObject = &td6->vehicle_object;
uint8 entryType, entryIndex;
if (!find_object_in_entry_group(rideEntryObject, &entryType, &entryIndex))
{
entryIndex = 0xFF;
}
// Force a fallback if the entry is not invented yet a td6 of it is selected, which can happen in select-by-track-type mode.
else if (!ride_entry_is_invented(entryIndex) && !gCheatsIgnoreResearchStatus)
{
entryIndex = 0xFF;
}
// The rest of the cases are handled by the code in ride_create()
if (RideGroupManager::RideTypeHasRideGroups(td6->type) && entryIndex == 0xFF)
{
const ObjectRepositoryItem * ori = object_repository_find_object_by_name(rideEntryObject->name);
if (ori != nullptr)
{
uint8 rideGroupIndex = ori->RideInfo.RideGroupIndex;
const RideGroup * td6RideGroup = RideGroupManager::RideGroupFind(td6->type, rideGroupIndex);
uint8 * availableRideEntries = get_ride_entry_indices_for_ride_type(td6->type);
for (uint8 * rei = availableRideEntries; *rei != RIDE_ENTRY_INDEX_NULL; rei++)
{
rct_ride_entry * ire = get_ride_entry(*rei);
if (!ride_entry_is_invented(*rei) && !gCheatsIgnoreResearchStatus)
{
continue;
}
const RideGroup * irg = RideGroupManager::GetRideGroup(td6->type, ire);
if (td6RideGroup->Equals(irg))
{
entryIndex = *rei;
break;
}
}
}
}
uint8 rideIndex;
uint8 rideColour;
money32 createRideResult = ride_create_command(td6->type, entryIndex, GAME_COMMAND_FLAG_APPLY, &rideIndex,
&rideColour);
if (createRideResult == MONEY32_UNDEFINED)
{
gGameCommandErrorTitle = STR_CANT_CREATE_NEW_RIDE_ATTRACTION;
gCommandExpenditureType = RCT_EXPENDITURE_TYPE_RIDE_CONSTRUCTION;
return MONEY32_UNDEFINED;
}
Ride * ride = get_ride(rideIndex);
if (ride->type == RIDE_TYPE_NULL)
{
log_warning("Invalid game command for track placement, ride id = %d", rideIndex);
return MONEY32_UNDEFINED;
}
money32 cost = 0;
if (!(flags & GAME_COMMAND_FLAG_APPLY))
{
_trackDesignDontPlaceScenery = false;
cost = place_virtual_track(td6, PTD_OPERATION_1, true, rideIndex, x, y, z);
if (_trackDesignPlaceStateSceneryUnavailable)
{
_trackDesignDontPlaceScenery = true;
cost = place_virtual_track(td6, PTD_OPERATION_1, false, rideIndex, x, y, z);
}
}
else
{
uint8 operation;
if (flags & GAME_COMMAND_FLAG_GHOST)
{
operation = PTD_OPERATION_4;
}
else
{
operation = PTD_OPERATION_2;
}
cost = place_virtual_track(td6, operation, !_trackDesignDontPlaceScenery, rideIndex, x, y, z);
}
if (cost == MONEY32_UNDEFINED || !(flags & GAME_COMMAND_FLAG_APPLY))
{
rct_string_id error_reason = gGameCommandErrorText;
ride_action_modify(rideIndex, RIDE_MODIFY_DEMOLISH, GAME_COMMAND_FLAG_APPLY);
gGameCommandErrorText = error_reason;
gCommandExpenditureType = RCT_EXPENDITURE_TYPE_RIDE_CONSTRUCTION;
*outRideIndex = rideIndex;
return cost;
}
if (entryIndex != 0xFF)
{
game_do_command(0, GAME_COMMAND_FLAG_APPLY | (2 << 8), 0, rideIndex | (entryIndex << 8),
GAME_COMMAND_SET_RIDE_VEHICLES, 0, 0);
}
game_do_command(0, GAME_COMMAND_FLAG_APPLY | (td6->ride_mode << 8), 0, rideIndex | (0 << 8),
GAME_COMMAND_SET_RIDE_SETTING, 0, 0);
game_do_command(0, GAME_COMMAND_FLAG_APPLY | (0 << 8), 0, rideIndex | (td6->number_of_trains << 8),
GAME_COMMAND_SET_RIDE_VEHICLES, 0, 0);
game_do_command(0, GAME_COMMAND_FLAG_APPLY | (1 << 8), 0, rideIndex | (td6->number_of_cars_per_train << 8),
GAME_COMMAND_SET_RIDE_VEHICLES, 0, 0);
game_do_command(0, GAME_COMMAND_FLAG_APPLY | (td6->depart_flags << 8), 0, rideIndex | (1 << 8),
GAME_COMMAND_SET_RIDE_SETTING, 0, 0);
game_do_command(0, GAME_COMMAND_FLAG_APPLY | (td6->min_waiting_time << 8), 0, rideIndex | (2 << 8),
GAME_COMMAND_SET_RIDE_SETTING, 0, 0);
game_do_command(0, GAME_COMMAND_FLAG_APPLY | (td6->max_waiting_time << 8), 0, rideIndex | (3 << 8),
GAME_COMMAND_SET_RIDE_SETTING, 0, 0);
game_do_command(0, GAME_COMMAND_FLAG_APPLY | (td6->operation_setting << 8), 0, rideIndex | (4 << 8),
GAME_COMMAND_SET_RIDE_SETTING, 0, 0);
game_do_command(0, GAME_COMMAND_FLAG_APPLY | ((td6->lift_hill_speed_num_circuits & 0x1F) << 8), 0,
rideIndex | (8 << 8), GAME_COMMAND_SET_RIDE_SETTING, 0, 0);
uint8 num_circuits = td6->lift_hill_speed_num_circuits >> 5;
if (num_circuits == 0)
{
num_circuits = 1;
}
game_do_command(0, GAME_COMMAND_FLAG_APPLY | (num_circuits << 8), 0, rideIndex | (9 << 8),
GAME_COMMAND_SET_RIDE_SETTING, 0, 0);
ride_set_to_default_inspection_interval(rideIndex);
ride->lifecycle_flags |= RIDE_LIFECYCLE_NOT_CUSTOM_DESIGN;
ride->colour_scheme_type = td6->version_and_colour_scheme & 3;
ride->entrance_style = td6->entrance_style;
for (sint32 i = 0; i < RCT12_NUM_COLOUR_SCHEMES; i++)
{
ride->track_colour_main[i] = td6->track_spine_colour[i];
ride->track_colour_additional[i] = td6->track_rail_colour[i];
ride->track_colour_supports[i] = td6->track_support_colour[i];
}
for (sint32 i = 0; i < MAX_VEHICLES_PER_RIDE; i++)
{
ride->vehicle_colours[i].body_colour = td6->vehicle_colours[i].body_colour;
ride->vehicle_colours[i].trim_colour = td6->vehicle_colours[i].trim_colour;
ride->vehicle_colours_extended[i] = td6->vehicle_additional_colour[i];
}
ride_set_name(rideIndex, td6->name);
gCommandExpenditureType = RCT_EXPENDITURE_TYPE_RIDE_CONSTRUCTION;
*outRideIndex = rideIndex;
return cost;
}
static money32 place_maze_design(uint8 flags, uint8 rideIndex, uint16 mazeEntry, sint16 x, sint16 y, sint16 z)
{
gCommandExpenditureType = RCT_EXPENDITURE_TYPE_RIDE_CONSTRUCTION;
gCommandPosition.x = x + 8;
gCommandPosition.y = y + 8;
gCommandPosition.z = z;
if (!map_check_free_elements_and_reorganise(1))
{
return MONEY32_UNDEFINED;
}
if ((z & 15) != 0)
{
return MONEY32_UNDEFINED;
}
if (!(flags & GAME_COMMAND_FLAG_ALLOW_DURING_PAUSED))
{
if (game_is_paused() && !gCheatsBuildInPauseMode)
{
gGameCommandErrorText = STR_CONSTRUCTION_NOT_POSSIBLE_WHILE_GAME_IS_PAUSED;
return MONEY32_UNDEFINED;
}
}
if (flags & GAME_COMMAND_FLAG_APPLY)
{
if (!(flags & GAME_COMMAND_FLAG_GHOST))
{
footpath_remove_litter(x, y, z);
wall_remove_at(floor2(x, 32), floor2(y, 32), z, z + 32);
}
}
if (!gCheatsSandboxMode)
{
if (!map_is_location_owned(floor2(x, 32), floor2(y, 32), z))
{
return MONEY32_UNDEFINED;
}
}
// Check support height
if (!gCheatsDisableSupportLimits)
{
rct_tile_element * tileElement = map_get_surface_element_at({x, y});
uint8 supportZ = (z + 32) >> 3;
if (supportZ > tileElement->base_height)
{
uint8 supportHeight = (supportZ - tileElement->base_height) / 2;
uint8 maxSupportHeight = RideData5[RIDE_TYPE_MAZE].max_height;
if (supportHeight > maxSupportHeight)
{
gGameCommandErrorText = STR_TOO_HIGH_FOR_SUPPORTS;
return MONEY32_UNDEFINED;
}
}
}
money32 cost = 0;
// Clearance checks
if (!gCheatsDisableClearanceChecks)
{
sint32 fx = floor2(x, 32);
sint32 fy = floor2(y, 32);
sint32 fz0 = z >> 3;
sint32 fz1 = fz0 + 4;
if (!map_can_construct_with_clear_at(fx, fy, fz0, fz1, &map_place_non_scenery_clear_func, 15, flags, &cost, CREATE_CROSSING_MODE_NONE))
{
return MONEY32_UNDEFINED;
}
uint8 elctgaw = gMapGroundFlags;
if (elctgaw & ELEMENT_IS_UNDERWATER)
{
gGameCommandErrorText = STR_RIDE_CANT_BUILD_THIS_UNDERWATER;
return MONEY32_UNDEFINED;
}
if (elctgaw & ELEMENT_IS_UNDERGROUND)
{
gGameCommandErrorText = STR_CAN_ONLY_BUILD_THIS_ABOVE_GROUND;
return MONEY32_UNDEFINED;
}
}
Ride * ride = get_ride(rideIndex);
// Calculate price
money32 price = 0;
if (!(gParkFlags & PARK_FLAGS_NO_MONEY))
{
price = RideTrackCosts[ride->type].track_price * TrackPricing[TRACK_ELEM_MAZE];
price = (price >> 17) * 10;
}
cost += price;
if (flags & GAME_COMMAND_FLAG_APPLY)
{
if (gGameCommandNestLevel == 1 && !(flags & GAME_COMMAND_FLAG_GHOST))
{
LocationXYZ16 coord;
coord.x = x + 8;
coord.y = y + 8;
coord.z = z;
network_set_player_last_action_coord(network_get_player_index(game_command_playerid), coord);
}
// Place track element
sint32 fx = floor2(x, 32);
sint32 fy = floor2(y, 32);
sint32 fz = z >> 3;
rct_tile_element * tileElement = tile_element_insert(fx >> 5, fy >> 5, fz, 15);
tileElement->clearance_height = fz + 4;
tileElement->type = TILE_ELEMENT_TYPE_TRACK;
track_element_set_type(tileElement, TRACK_ELEM_MAZE);
track_element_set_ride_index(tileElement, rideIndex);
tileElement->properties.track.maze_entry = mazeEntry;
if (flags & GAME_COMMAND_FLAG_GHOST)
{
tileElement->flags |= TILE_ELEMENT_FLAG_GHOST;
}
map_invalidate_element(fx, fy, tileElement);
ride->maze_tiles++;
ride->station_heights[0] = tileElement->base_height;
ride->station_starts[0].xy = 0;
if (ride->maze_tiles == 1)
{
ride->overall_view.x = fx / 32;
ride->overall_view.y = fy / 32;
}
}
return cost;
}
/**
*
* rct2: 0x006D13FE
*/
void game_command_place_track_design(
sint32 * eax,
sint32 * ebx,
sint32 * ecx,
[[maybe_unused]] sint32 * edx,
[[maybe_unused]] sint32 * esi,
sint32 * edi,
[[maybe_unused]] sint32 * ebp)
{
sint16 x = *eax & 0xFFFF;
sint16 y = *ecx & 0xFFFF;
sint16 z = *edi & 0xFFFF;
uint8 flags = *ebx;
uint8 rideIndex;
*ebx = place_track_design(x, y, z, flags, &rideIndex);
*edi = rideIndex;
}
/**
*
* rct2: 0x006CDEE4
*/
void game_command_place_maze_design(
sint32 * eax, sint32 * ebx, sint32 * ecx, sint32 * edx, [[maybe_unused]] sint32 * esi, sint32 * edi, [[maybe_unused]] sint32 * ebp)
{
*ebx = place_maze_design(
*ebx & 0xFF,
*edx & 0xFF,
((*ebx >> 8) & 0xFF) | (((*edx >> 8) & 0xFF) << 8),
*eax & 0xFFFF,
*ecx & 0xFFFF,
*edi & 0xFFFF
);
}
#pragma region Track Design Preview
/**
*
* rct2: 0x006D1EF0
*/
void track_design_draw_preview(rct_track_td6 * td6, uint8 * pixels)
{
// Make a copy of the map
map_backup * mapBackup = track_design_preview_backup_map();
if (mapBackup == nullptr)
{
return;
}
track_design_preview_clear_map();
if (gScreenFlags & SCREEN_FLAGS_TRACK_MANAGER)
{
track_design_load_scenery_objects(td6);
}
money32 cost;
uint8 rideIndex;
uint8 flags;
if (!track_design_place_preview(td6, &cost, &rideIndex, &flags))
{
memset(pixels, 0, TRACK_PREVIEW_IMAGE_SIZE * 4);
track_design_preview_restore_map(mapBackup);
return;
}
td6->cost = cost;
td6->track_flags = flags & 7;
CoordsXYZ centre;
centre.x = (gTrackPreviewMin.x + gTrackPreviewMax.x) / 2 + 16;
centre.y = (gTrackPreviewMin.y + gTrackPreviewMax.y) / 2 + 16;
centre.z = (gTrackPreviewMin.z + gTrackPreviewMax.z) / 2;
sint32 size_x = gTrackPreviewMax.x - gTrackPreviewMin.x;
sint32 size_y = gTrackPreviewMax.y - gTrackPreviewMin.y;
sint32 size_z = gTrackPreviewMax.z - gTrackPreviewMin.z;
// Special case for flat rides - Z-axis info is irrelevant
// and must be zeroed out lest the preview be off-centre
if (!ride_type_has_flag(td6->type, RIDE_TYPE_FLAG_HAS_TRACK))
{
centre.z = 0;
size_z = 0;
}
sint32 zoom_level = 1;
if (size_x < size_y)
{
size_x = size_y;
}
if (size_x > 1000 || size_z > 280)
{
zoom_level = 2;
}
if (size_x > 1600 || size_z > 1000)
{
zoom_level = 3;
}
size_x = 370 << zoom_level;
size_y = 217 << zoom_level;
rct_viewport view;
view.width = 370;
view.height = 217;
view.view_width = size_x;
view.view_height = size_y;
view.x = 0;
view.y = 0;
view.zoom = zoom_level;
view.flags = VIEWPORT_FLAG_HIDE_BASE | VIEWPORT_FLAG_INVISIBLE_SPRITES;
rct_drawpixelinfo dpi;
dpi.zoom_level = zoom_level;
dpi.x = 0;
dpi.y = 0;
dpi.width = 370;
dpi.height = 217;
dpi.pitch = 0;
dpi.bits = pixels;
CoordsXY offset = {size_x / 2, size_y / 2};
for (uint8 i = 0; i < 4; i++)
{
gCurrentRotation = i;
CoordsXY pos2d = translate_3d_to_2d_with_z(i, centre);
pos2d.x -= offset.x;
pos2d.y -= offset.y;
sint32 left = pos2d.x;
sint32 top = pos2d.y;
sint32 right = left + size_x;
sint32 bottom = top + size_y;
view.view_x = left;
view.view_y = top;
viewport_paint(&view, &dpi, left, top, right, bottom);
dpi.bits += TRACK_PREVIEW_IMAGE_SIZE;
}
ride_delete(rideIndex);
track_design_preview_restore_map(mapBackup);
}
/**
* Create a backup of the map as it will be cleared for drawing the track
* design preview.
* rct2: 0x006D1C68
*/
static map_backup * track_design_preview_backup_map()
{
map_backup * backup = (map_backup *) malloc(sizeof(map_backup));
if (backup != nullptr)
{
memcpy(
backup->tile_elements,
gTileElements,
sizeof(backup->tile_elements)
);
memcpy(
backup->tile_pointers,
gTileElementTilePointers,
sizeof(backup->tile_pointers)
);
backup->next_free_tile_element = gNextFreeTileElement;
backup->map_size_units = gMapSizeUnits;
backup->map_size_units_minus_2 = gMapSizeMinus2;
backup->map_size = gMapSize;
backup->current_rotation = get_current_rotation();
}
return backup;
}
/**
* Restores the map from a backup.
* rct2: 0x006D2378
*/
static void track_design_preview_restore_map(map_backup * backup)
{
memcpy(
gTileElements,
backup->tile_elements,
sizeof(backup->tile_elements)
);
memcpy(
gTileElementTilePointers,
backup->tile_pointers,
sizeof(backup->tile_pointers)
);
gNextFreeTileElement = backup->next_free_tile_element;
gMapSizeUnits = backup->map_size_units;
gMapSizeMinus2 = backup->map_size_units_minus_2;
gMapSize = backup->map_size;
gCurrentRotation = backup->current_rotation;
free(backup);
}
/**
* Resets all the map elements to surface tiles for track preview.
* rct2: 0x006D1D9A
*/
static void track_design_preview_clear_map()
{
// These values were previously allocated in backup map but
// it seems more fitting to place in this function
gMapSizeUnits = 255 * 32;
gMapSizeMinus2 = (264 * 32) - 2;
gMapSize = 256;
for (sint32 i = 0; i < MAX_TILE_TILE_ELEMENT_POINTERS; i++)
{
rct_tile_element * tile_element = &gTileElements[i];
tile_element->type = TILE_ELEMENT_TYPE_SURFACE;
tile_element->flags = TILE_ELEMENT_FLAG_LAST_TILE;
tile_element->base_height = 2;
tile_element->clearance_height = 0;
tile_element->properties.surface.slope = 0;
tile_element->properties.surface.terrain = 0;
tile_element->properties.surface.grass_length = GRASS_LENGTH_CLEAR_0;
tile_element->properties.surface.ownership = OWNERSHIP_OWNED;
}
map_update_tile_pointers();
}
bool track_design_are_entrance_and_exit_placed()
{
return _trackDesignPlaceStateEntranceExitPlaced;
}
#pragma endregion