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OpenRCT2/src/openrct2/drawing/LightFX.cpp
Marijn van der Werf 430bf482f2 Add viewport getter
2018-01-18 22:57:55 +01:00

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#pragma region Copyright (c) 2014-2017 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
#ifdef __ENABLE_LIGHTFX__
#include <algorithm>
#include <cmath>
#include "../common.h"
#include "../config/Config.h"
#include "../Game.h"
#include "../interface/Viewport.h"
#include "../interface/Window.h"
#include "../paint/tile_element/TileElement.h"
#include "../util/Util.h"
#include "../world/Climate.h"
#include "Drawing.h"
#include "LightFX.h"
extern "C"
{
static uint8 _bakedLightTexture_lantern_0[32*32];
static uint8 _bakedLightTexture_lantern_1[64*64];
static uint8 _bakedLightTexture_lantern_2[128*128];
static uint8 _bakedLightTexture_lantern_3[256*256];
static uint8 _bakedLightTexture_spot_0[32 * 32];
static uint8 _bakedLightTexture_spot_1[64 * 64];
static uint8 _bakedLightTexture_spot_2[128 * 128];
static uint8 _bakedLightTexture_spot_3[256 * 256];
static rct_drawpixelinfo _pixelInfo;
static bool _lightfxAvailable = false;
static void* _light_rendered_buffer_back = nullptr;
static void* _light_rendered_buffer_front = nullptr;
static uint32 _lightPolution_back = 0;
static uint32 _lightPolution_front = 0;
typedef struct lightlist_entry {
sint16 x, y, z;
uint8 lightType;
uint8 lightIntensity;
uint32 lightID;
uint16 lightIDqualifier;
uint8 lightLinger;
uint8 pad[1];
} lightlist_entry;
static lightlist_entry _LightListA[16000];
static lightlist_entry _LightListB[16000];
static lightlist_entry *_LightListBack;
static lightlist_entry *_LightListFront;
static uint32 LightListCurrentCountBack;
static uint32 LightListCurrentCountFront;
static sint16 _current_view_x_front = 0;
static sint16 _current_view_y_front = 0;
static uint8 _current_view_rotation_front = 0;
static uint8 _current_view_zoom_front = 0;
static sint16 _current_view_x_back = 0;
static sint16 _current_view_y_back = 0;
static uint8 _current_view_rotation_back = 0;
static uint8 _current_view_zoom_back = 0;
static uint8 _current_view_zoom_back_delay = 0;
static rct_palette gPalette_light;
static uint8 calc_light_intensity_lantern(sint32 x, sint32 y) {
double distance = (double)(x * x + y * y);
double light = 0.03 + std::pow(10.0 / (1.0 + distance / 100.0), 0.55);
light *= std::min(1.0, std::max(0.0, 2.0 - std::sqrt(distance) / 64));
light *= 0.1f;
return (uint8)(std::min(255.0, light * 255.0));
}
static uint8 calc_light_intensity_spot(sint32 x, sint32 y) {
double distance = (double)(x * x + y * y);
double light = 0.3 + std::pow(10.0 / (1.0 + distance / 100.0), 0.75);
light *= std::min(1.0, std::max(0.0, 2.0 - std::sqrt(distance) / 64));
light *= 0.5f;
return (uint8)(std::min(255.0, light * 255.0)) >> 4;
}
static void calc_rescale_light_half( uint8 *target, uint8 *source,uint32 targetWidth, uint32 targetHeight) {
uint8 *parcerRead = source;
uint8 *parcerWrite = target;
for (uint32 y = 0; y < targetHeight; y++) {
for (uint32 x = 0; x < targetWidth; x++) {
*parcerWrite = (*parcerRead);
parcerWrite++;
parcerRead += 2;
}
parcerRead += targetWidth * 2;
}
}
void lightfx_set_available(bool available)
{
_lightfxAvailable = available;
}
bool lightfx_is_available()
{
return _lightfxAvailable && gConfigGeneral.enable_light_fx != 0;
}
void lightfx_init()
{
_LightListBack = _LightListA;
_LightListFront = _LightListB;
memset(_bakedLightTexture_lantern_0, 0xFF, 32 * 32);
memset(_bakedLightTexture_lantern_1, 0xFF, 64 * 64);
memset(_bakedLightTexture_lantern_2, 0xFF, 128 * 128);
memset(_bakedLightTexture_lantern_3, 0xFF, 256 * 256);
uint8 *parcer = _bakedLightTexture_lantern_3;
for (sint32 y = 0; y < 256; y++) {
for (sint32 x = 0; x < 256; x++) {
*parcer = calc_light_intensity_lantern(x - 128, y - 128);
parcer++;
}
}
parcer = _bakedLightTexture_spot_3;
for (sint32 y = 0; y < 256; y++) {
for (sint32 x = 0; x < 256; x++) {
*parcer = calc_light_intensity_spot(x - 128, y - 128);
parcer++;
}
}
calc_rescale_light_half(_bakedLightTexture_lantern_2, _bakedLightTexture_lantern_3, 128, 128);
calc_rescale_light_half(_bakedLightTexture_lantern_1, _bakedLightTexture_lantern_2, 64, 64);
calc_rescale_light_half(_bakedLightTexture_lantern_0, _bakedLightTexture_lantern_1, 32, 32);
calc_rescale_light_half(_bakedLightTexture_spot_2, _bakedLightTexture_spot_3, 128, 128);
calc_rescale_light_half(_bakedLightTexture_spot_1, _bakedLightTexture_spot_2, 64, 64);
calc_rescale_light_half(_bakedLightTexture_spot_0, _bakedLightTexture_spot_1, 32, 32);
}
void lightfx_update_buffers(rct_drawpixelinfo *info)
{
_light_rendered_buffer_front = realloc(_light_rendered_buffer_front, info->width * info->height);
_light_rendered_buffer_back = realloc(_light_rendered_buffer_back, info->width * info->height);
memcpy(&_pixelInfo, info, sizeof(rct_drawpixelinfo));
}
extern void viewport_paint_setup();
void lightfx_prepare_light_list()
{
for (uint32 light = 0; light < LightListCurrentCountFront; light++) {
lightlist_entry *entry = &_LightListFront[light];
if (entry->z == 0x7FFF) {
entry->lightIntensity = 0xFF;
continue;
}
LocationXYZ16 coord_3d = {
/* .x = */ entry->x,
/* .y = */ entry->y,
/* .z = */ entry->z
};
LocationXY16 coord_2d = coordinate_3d_to_2d(&coord_3d, _current_view_rotation_front);
entry->x = coord_2d.x;// - (_current_view_x_front);
entry->y = coord_2d.y;// - (_current_view_y_front);
sint32 posOnScreenX = entry->x - _current_view_x_front;
sint32 posOnScreenY = entry->y - _current_view_y_front;
posOnScreenX >>= _current_view_zoom_front;
posOnScreenY >>= _current_view_zoom_front;
if ((posOnScreenX < -128) ||
(posOnScreenY < -128) ||
(posOnScreenX > _pixelInfo.width + 128) ||
(posOnScreenY > _pixelInfo.height + 128)) {
entry->lightType = LIGHTFX_LIGHT_TYPE_NONE;
continue;
}
// entry->x >>= _current_view_zoom_front;
// entry->y >>= _current_view_zoom_front;
uint32 lightIntensityOccluded = 0x0;
sint32 dirVecX = 707;
sint32 dirVecY = 707;
switch (_current_view_rotation_front) {
case 0:
dirVecX = 707;
dirVecY = 707;
break;
case 1:
dirVecX = -707;
dirVecY = 707;
break;
case 2:
dirVecX = -707;
dirVecY = -707;
break;
case 3:
dirVecX = 707;
dirVecY = -707;
break;
default:
dirVecX = 0;
dirVecY = 0;
break;
}
#ifdef LIGHTFX_UNKNOWN_PART_1
sint32 tileOffsetX = 0;
sint32 tileOffsetY = 0;
switch (_current_view_rotation_front) {
case 0:
tileOffsetX = 0;
tileOffsetY = 0;
break;
case 1:
tileOffsetX = 16;
tileOffsetY = 0;
break;
case 2:
tileOffsetX = 32;
tileOffsetY = 32;
break;
case 3:
tileOffsetX = 0;
tileOffsetY = 16;
break;
}
sint32 mapFrontDiv = 1 << _current_view_zoom_front;
static sint16 offsetPattern[26] = { 0, 0, -4, 0, 0, -3, 4, 0, 0, 3,
-2, -1, -1, -1, 2, 1, 1, 1,
-3, -2, -3, 2, 3, -2, 3, 2 };
#endif //LIGHTFX_UNKNOWN_PART_1
if (true) {
sint32 totalSamplePoints = 5;
sint32 startSamplePoint = 1;
// sint32 lastSampleCount = 0;
if ((entry->lightIDqualifier & 0xF) == LIGHTFX_LIGHT_QUALIFIER_MAP) {
startSamplePoint = 0;
totalSamplePoints = 1;
}
for (sint32 pat = startSamplePoint; pat < totalSamplePoints; pat++) {
LocationXY16 mapCoord = { 0 };
rct_tile_element *tileElement = nullptr;
sint32 interactionType = 0;
rct_window *w = window_get_main();
if (w != nullptr) {
// get_map_coordinates_from_pos(entry->x + offsetPattern[pat*2] / mapFrontDiv, entry->y + offsetPattern[pat*2+1] / mapFrontDiv, VIEWPORT_INTERACTION_MASK_NONE, &mapCoord.x, &mapCoord.y, &interactionType, &tileElement, NULL);
#ifdef LIGHTFX_UNKNOWN_PART_1
_unk9AC154 = ~VIEWPORT_INTERACTION_MASK_SPRITE & 0xFFFF;
_viewportDpi1.zoom = _current_view_zoom_front;
_viewportDpi1.x = entry->x + offsetPattern[0 + pat * 2] / mapFrontDiv;
_viewportDpi1.y = entry->y + offsetPattern[1 + pat * 2] / mapFrontDiv;
rct_drawpixelinfo* dpi = &_viewportDpi2;
dpi->x = _viewportDpi1.x;
dpi->y = _viewportDpi1.y;
dpi->zoom_level = _viewportDpi1.zoom;
dpi->height = 1;
dpi->width = 1;
gPaintSession.EndOfPaintStructArray = 0xF1A4CC;
gPaintSession.Unk140E9A8 = dpi;
painter_setup();
viewport_paint_setup();
paint_session_arrange(gPaintSession);
sub_68862C();
// log_warning("[%i, %i]", dpi->x, dpi->y);
mapCoord.x = _interactionMapX + tileOffsetX;
mapCoord.y = _interactionMapY + tileOffsetY;
interactionType = _interactionSpriteType;
tileElement = RCT2_GLOBAL(0x9AC150, rct_tile_element*);
#endif //LIGHTFX_UNKNOWN_PART_1
//RCT2_GLOBAL(0x9AC154, uint16_t) = VIEWPORT_INTERACTION_MASK_NONE;
//RCT2_GLOBAL(0x9AC148, uint8_t) = 0;
//RCT2_GLOBAL(0x9AC138 + 4, int16_t) = screenX;
//RCT2_GLOBAL(0x9AC138 + 6, int16_t) = screenY;
//if (screenX >= 0 && screenX < (sint32)myviewport->width && screenY >= 0 && screenY < (sint32)myviewport->height)
//{
// screenX <<= myviewport->zoom;
// screenY <<= myviewport->zoom;
// screenX += (sint32)myviewport->view_x;
// screenY += (sint32)myviewport->view_y;
// RCT2_GLOBAL(RCT2_ADDRESS_VIEWPORT_ZOOM, uint16_t) = myviewport->zoom;
// screenX &= (0xFFFF << myviewport->zoom) & 0xFFFF;
// screenY &= (0xFFFF << myviewport->zoom) & 0xFFFF;
// RCT2_GLOBAL(RCT2_ADDRESS_VIEWPORT_PAINT_X, int16_t) = screenX;
// RCT2_GLOBAL(RCT2_ADDRESS_VIEWPORT_PAINT_Y, int16_t) = screenY;
// rct_drawpixelinfo* dpi = RCT2_ADDRESS(RCT2_ADDRESS_VIEWPORT_DPI, rct_drawpixelinfo);
// dpi->y = RCT2_GLOBAL(RCT2_ADDRESS_VIEWPORT_PAINT_Y, int16_t);
// dpi->height = 1;
// dpi->zoom_level = RCT2_GLOBAL(RCT2_ADDRESS_VIEWPORT_ZOOM, uint16_t);
// dpi->x = RCT2_GLOBAL(RCT2_ADDRESS_VIEWPORT_PAINT_X, int16_t);
// dpi->width = 1;
// RCT2_GLOBAL(0xEE7880, uint32_t) = 0xF1A4CC;
// RCT2_GLOBAL(0x140E9A8, rct_drawpixelinfo*) = dpi;
// painter_setup();
// viewport_paint_setup();
// paint_session_arrange(gPaintSession);
// sub_68862C();
//}
}
sint32 minDist = 0;
sint32 baseHeight = -999;
if (interactionType != VIEWPORT_INTERACTION_ITEM_SPRITE && tileElement) {
baseHeight = tileElement->base_height;
}
minDist = ((baseHeight * 8) - coord_3d.z) / 2;
sint32 deltaX = mapCoord.x - coord_3d.x;
sint32 deltaY = mapCoord.y - coord_3d.y;
sint32 projDot = (dirVecX * deltaX + dirVecY * deltaY) / 1000;
projDot = std::max(minDist, projDot);
if (projDot < 5) {
lightIntensityOccluded += 100;
}
else {
lightIntensityOccluded += std::max(0, 200 - (projDot * 20));
}
// log_warning("light %i [%i, %i, %i], [%i, %i] minDist to %i: %i; projdot: %i", light, coord_3d.x, coord_3d.y, coord_3d.z, mapCoord.x, mapCoord.y, baseHeight, minDist, projDot);
if (pat == 0) {
if (lightIntensityOccluded == 100)
break;
if (_current_view_zoom_front > 2)
break;
totalSamplePoints += 4;
}
else if (pat == 4) {
if (_current_view_zoom_front > 1)
break;
if (lightIntensityOccluded == 0 || lightIntensityOccluded == 500)
break;
// lastSampleCount = lightIntensityOccluded / 500;
// break;
totalSamplePoints += 4;
}
else if (pat == 8) {
break;
// if (_current_view_zoom_front > 0)
// break;
// sint32 newSampleCount = lightIntensityOccluded / 900;
// if (abs(newSampleCount - lastSampleCount) < 10)
// break;
// totalSamplePoints += 4;
}
}
totalSamplePoints -= startSamplePoint;
// lightIntensityOccluded = totalSamplePoints * 100;
// log_warning("sample-count: %i, occlusion: %i", totalSamplePoints, lightIntensityOccluded);
if (lightIntensityOccluded == 0) {
entry->lightType = LIGHTFX_LIGHT_TYPE_NONE;
continue;
}
// log_warning("sample-count: %i, occlusion: %i", totalSamplePoints, lightIntensityOccluded / totalSamplePoints);
entry->lightIntensity = std::min<uint32>(0xFF, (entry->lightIntensity * lightIntensityOccluded) / (totalSamplePoints * 100));
entry->lightIntensity = std::max<uint32>(0x00, entry->lightIntensity - _current_view_zoom_front * 5);
}
if (_current_view_zoom_front > 0) {
if ((entry->lightType & 0x3) < _current_view_zoom_front) {
entry->lightType = LIGHTFX_LIGHT_TYPE_NONE;
continue;
}
entry->lightType -= _current_view_zoom_front;
}
}
}
void lightfx_swap_buffers()
{
void *tmp = _light_rendered_buffer_back;
_light_rendered_buffer_back = _light_rendered_buffer_front;
_light_rendered_buffer_front = tmp;
tmp = _light_rendered_buffer_back;
_light_rendered_buffer_back = _light_rendered_buffer_front;
_light_rendered_buffer_front = tmp;
tmp = _LightListBack;
_LightListBack = _LightListFront;
_LightListFront = (lightlist_entry *)tmp;
LightListCurrentCountFront = LightListCurrentCountBack;
LightListCurrentCountBack = 0x0;
uint32 uTmp = _lightPolution_back;
_lightPolution_back = _lightPolution_front;
_lightPolution_front = uTmp;
_current_view_x_front = _current_view_x_back;
_current_view_y_front = _current_view_y_back;
_current_view_rotation_front = _current_view_rotation_back;
_current_view_zoom_front = _current_view_zoom_back_delay;
_current_view_zoom_back_delay = _current_view_zoom_back;
}
void lightfx_update_viewport_settings()
{
rct_window *mainWindow = window_get_main();
if (mainWindow) {
rct_viewport * viewport = window_get_viewport(mainWindow);
_current_view_x_back = viewport->view_x;
_current_view_y_back = viewport->view_y;
_current_view_rotation_back = get_current_rotation();
_current_view_zoom_back = viewport->zoom;
}
}
void lightfx_render_lights_to_frontbuffer()
{
if (_light_rendered_buffer_front == nullptr) {
return;
}
memset(_light_rendered_buffer_front, 0, _pixelInfo.width * _pixelInfo.height);
_lightPolution_back = 0;
// log_warning("%i lights", LightListCurrentCountFront);
for (uint32 light = 0; light < LightListCurrentCountFront; light++) {
const uint8 *bufReadBase = nullptr;
uint8 *bufWriteBase = (uint8 *)_light_rendered_buffer_front;
uint32 bufReadWidth, bufReadHeight;
sint32 bufWriteX, bufWriteY;
sint32 bufWriteWidth, bufWriteHeight;
uint32 bufReadSkip, bufWriteSkip;
lightlist_entry * entry = &_LightListFront[light];
sint32 inRectCentreX = entry->x;
sint32 inRectCentreY = entry->y;
if (entry->z != 0x7FFF) {
inRectCentreX -= _current_view_x_front;
inRectCentreY -= _current_view_y_front;
inRectCentreX >>= _current_view_zoom_front;
inRectCentreY >>= _current_view_zoom_front;
}
switch (entry->lightType) {
case LIGHTFX_LIGHT_TYPE_LANTERN_0:
bufReadWidth = 32;
bufReadHeight = 32;
bufReadBase = _bakedLightTexture_lantern_0;
break;
case LIGHTFX_LIGHT_TYPE_LANTERN_1:
bufReadWidth = 64;
bufReadHeight = 64;
bufReadBase = _bakedLightTexture_lantern_1;
break;
case LIGHTFX_LIGHT_TYPE_LANTERN_2:
bufReadWidth = 128;
bufReadHeight = 128;
bufReadBase = _bakedLightTexture_lantern_2;
break;
case LIGHTFX_LIGHT_TYPE_LANTERN_3:
bufReadWidth = 256;
bufReadHeight = 256;
bufReadBase = _bakedLightTexture_lantern_3;
break;
case LIGHTFX_LIGHT_TYPE_SPOT_0:
bufReadWidth = 32;
bufReadHeight = 32;
bufReadBase = _bakedLightTexture_spot_0;
break;
case LIGHTFX_LIGHT_TYPE_SPOT_1:
bufReadWidth = 64;
bufReadHeight = 64;
bufReadBase = _bakedLightTexture_spot_1;
break;
case LIGHTFX_LIGHT_TYPE_SPOT_2:
bufReadWidth = 128;
bufReadHeight = 128;
bufReadBase = _bakedLightTexture_spot_2;
break;
case LIGHTFX_LIGHT_TYPE_SPOT_3:
bufReadWidth = 256;
bufReadHeight = 256;
bufReadBase = _bakedLightTexture_spot_3;
break;
default:
continue;
}
bufWriteX = inRectCentreX - bufReadWidth / 2;
bufWriteY = inRectCentreY - bufReadHeight / 2;
bufWriteWidth = bufReadWidth;
bufWriteHeight = bufReadHeight;
if (bufWriteX < 0) {
bufReadBase += -bufWriteX;
bufWriteWidth += bufWriteX;
}
else {
bufWriteBase += bufWriteX;
}
if (bufWriteWidth <= 0)
continue;
if (bufWriteY < 0) {
bufReadBase += -bufWriteY * bufReadWidth;
bufWriteHeight += bufWriteY;
}
else {
bufWriteBase += bufWriteY * _pixelInfo.width;
}
if (bufWriteHeight <= 0)
continue;
sint32 rightEdge = bufWriteX + bufWriteWidth;
sint32 bottomEdge = bufWriteY + bufWriteHeight;
if (rightEdge > _pixelInfo.width) {
bufWriteWidth -= rightEdge - _pixelInfo.width;
}
if (bottomEdge > _pixelInfo.height) {
bufWriteHeight -= bottomEdge - _pixelInfo.height;
}
if (bufWriteWidth <= 0)
continue;
if (bufWriteHeight <= 0)
continue;
_lightPolution_back += (bufWriteWidth * bufWriteHeight) / 256;
bufReadSkip = bufReadWidth - bufWriteWidth;
bufWriteSkip = _pixelInfo.width - bufWriteWidth;
if (entry->lightIntensity == 0xFF) {
for (sint32 y = 0; y < bufWriteHeight; y++) {
for (sint32 x = 0; x < bufWriteWidth; x++) {
*bufWriteBase = std::min(0xFF, *bufWriteBase + *bufReadBase);
bufWriteBase++;
bufReadBase++;
}
bufWriteBase += bufWriteSkip;
bufReadBase += bufReadSkip;
}
}
else {
for (sint32 y = 0; y < bufWriteHeight; y++) {
for (sint32 x = 0; x < bufWriteWidth; x++) {
*bufWriteBase = std::min(0xFF, *bufWriteBase + (((*bufReadBase) * (1 + entry->lightIntensity)) >> 8));
bufWriteBase++;
bufReadBase++;
}
bufWriteBase += bufWriteSkip;
bufReadBase += bufReadSkip;
}
}
}
}
void* lightfx_get_front_buffer()
{
return _light_rendered_buffer_front;
}
const rct_palette * lightfx_get_palette()
{
return &gPalette_light;
}
void lightfx_add_3d_light(uint32 lightID, uint16 lightIDqualifier, sint16 x, sint16 y, uint16 z, uint8 lightType)
{
if (LightListCurrentCountBack == 15999) {
return;
}
// log_warning("%i lights in back", LightListCurrentCountBack);
for (uint32 i = 0; i < LightListCurrentCountBack; i++) {
lightlist_entry *entry = &_LightListBack[i];
if (entry->lightID != lightID)
continue;
if (entry->lightIDqualifier != lightIDqualifier)
continue;
entry->x = x;
entry->y = y;
entry->z = z;
entry->lightType = lightType;
entry->lightIntensity = 0xFF;
entry->lightID = lightID;
entry->lightIDqualifier = lightIDqualifier;
entry->lightLinger = 1;
return;
}
lightlist_entry *entry = &_LightListBack[LightListCurrentCountBack++];
entry->x = x;
entry->y = y;
entry->z = z;
entry->lightType = lightType;
entry->lightIntensity = 0xFF;
entry->lightID = lightID;
entry->lightIDqualifier = lightIDqualifier;
entry->lightLinger = 1;
// log_warning("new 3d light");
}
void lightfx_add_3d_light_magic_from_drawing_tile(LocationXY16 mapPosition, sint16 offsetX, sint16 offsetY, sint16 offsetZ, uint8 lightType)
{
sint16 x = mapPosition.x + offsetX;
sint16 y = mapPosition.y + offsetY;
switch (get_current_rotation()) {
case 0:
x += 16;
y += 16;
break;
case 1:
x += 16;
y += 16;
break;
case 2:
x += 16;
y -= 16;
break;
case 3:
x += 16;
y -= 16;
break;
default:
return;
}
lightfx_add_3d_light((x << 16) | y, (offsetZ << 8) | LIGHTFX_LIGHT_QUALIFIER_MAP, x, y, offsetZ, lightType);
}
uint32 lightfx_get_light_polution()
{
return _lightPolution_front;
}
void lightfx_add_lights_magic_vehicles()
{
uint16 spriteIndex = gSpriteListHead[SPRITE_LIST_TRAIN];
while (spriteIndex != SPRITE_INDEX_NULL) {
rct_vehicle * vehicle = &(get_sprite(spriteIndex)->vehicle);
uint16 vehicleID = spriteIndex;
spriteIndex = vehicle->next;
rct_vehicle *mother_vehicle = vehicle;
if (mother_vehicle->ride_subtype == RIDE_ENTRY_INDEX_NULL) {
continue;
}
for (uint16 q = vehicleID; q != SPRITE_INDEX_NULL; ) {
vehicle = GET_VEHICLE(q);
vehicleID = q;
if (vehicle->next_vehicle_on_train == q)
break;
q = vehicle->next_vehicle_on_train;
sint16 place_x, place_y, place_z;
place_x = vehicle->x;
place_y = vehicle->y;
place_z = vehicle->z;
static constexpr const sint16 offsetLookup[32] = { 10, 10, 9, 8, 7, 6, 4, 2, 0, -2, -4, -6, -7, -8, -9, -10, -10, -10, -9, -8, -7, -6, -4, -2, 0, 2, 4, 6, 7, 8, 9, 10 };
Ride *ride = get_ride(vehicle->ride);
switch (ride->type) {
case RIDE_TYPE_OBSERVATION_TOWER:
lightfx_add_3d_light(vehicleID, 0x0000 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, vehicle->x, vehicle->y + 16, vehicle->z, LIGHTFX_LIGHT_TYPE_SPOT_3);
lightfx_add_3d_light(vehicleID, 0x0100 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, vehicle->x + 16, vehicle->y, vehicle->z, LIGHTFX_LIGHT_TYPE_SPOT_3);
lightfx_add_3d_light(vehicleID, 0x0200 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, vehicle->x - 16, vehicle->y, vehicle->z, LIGHTFX_LIGHT_TYPE_SPOT_3);
lightfx_add_3d_light(vehicleID, 0x0300 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, vehicle->x, vehicle->y - 16, vehicle->z, LIGHTFX_LIGHT_TYPE_SPOT_3);
break;
case RIDE_TYPE_MINE_TRAIN_COASTER:
case RIDE_TYPE_GHOST_TRAIN:
if (vehicle == vehicle_get_head(vehicle)) {
place_x -= offsetLookup[(vehicle->sprite_direction + 0) % 32] * 2;
place_y -= offsetLookup[(vehicle->sprite_direction + 8) % 32] * 2;
lightfx_add_3d_light(vehicleID, 0x0000 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, place_x, place_y, place_z, LIGHTFX_LIGHT_TYPE_SPOT_3);
}
break;
case RIDE_TYPE_CHAIRLIFT:
lightfx_add_3d_light(vehicleID, 0x0000 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, place_x, place_y, place_z - 16, LIGHTFX_LIGHT_TYPE_LANTERN_2);
break;
case RIDE_TYPE_BOAT_HIRE:
case RIDE_TYPE_CAR_RIDE:
case RIDE_TYPE_GO_KARTS:
case RIDE_TYPE_DODGEMS:
case RIDE_TYPE_MINI_HELICOPTERS:
case RIDE_TYPE_MONORAIL_CYCLES:
case RIDE_TYPE_SUBMARINE_RIDE:
case RIDE_TYPE_SPLASH_BOATS:
case RIDE_TYPE_WATER_COASTER: {
rct_vehicle *vehicle_draw = vehicle_get_head(vehicle);
if (vehicle_draw->next_vehicle_on_train != SPRITE_INDEX_NULL) {
vehicle_draw = GET_VEHICLE(vehicle_draw->next_vehicle_on_train);
}
place_x = vehicle_draw->x;
place_y = vehicle_draw->y;
place_z = vehicle_draw->z;
place_x -= offsetLookup[(vehicle_draw->sprite_direction + 0) % 32];
place_y -= offsetLookup[(vehicle_draw->sprite_direction + 8) % 32];
lightfx_add_3d_light(vehicleID, 0x0000 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, place_x, place_y, place_z, LIGHTFX_LIGHT_TYPE_SPOT_2);
place_x -= offsetLookup[(vehicle_draw->sprite_direction + 0) % 32];
place_y -= offsetLookup[(vehicle_draw->sprite_direction + 8) % 32];
lightfx_add_3d_light(vehicleID, 0x0100 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, place_x, place_y, place_z, LIGHTFX_LIGHT_TYPE_SPOT_2);
break;
}
case RIDE_TYPE_MONORAIL:
lightfx_add_3d_light(vehicleID, 0x0000 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, vehicle->x, vehicle->y, vehicle->z + 12, LIGHTFX_LIGHT_TYPE_SPOT_2);
if (vehicle == vehicle_get_head(vehicle)) {
place_x -= offsetLookup[(vehicle->sprite_direction + 0) % 32] * 2;
place_y -= offsetLookup[(vehicle->sprite_direction + 8) % 32] * 2;
lightfx_add_3d_light(vehicleID, 0x0100 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, place_x, place_y, place_z + 10, LIGHTFX_LIGHT_TYPE_LANTERN_3);
place_x -= offsetLookup[(vehicle->sprite_direction + 0) % 32] * 3;
place_y -= offsetLookup[(vehicle->sprite_direction + 8) % 32] * 3;
lightfx_add_3d_light(vehicleID, 0x0200 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, place_x, place_y, place_z + 2, LIGHTFX_LIGHT_TYPE_LANTERN_3);
}
if (vehicle == vehicle_get_tail(vehicle)) {
place_x += offsetLookup[(vehicle->sprite_direction + 0) % 32] * 2;
place_y += offsetLookup[(vehicle->sprite_direction + 8) % 32] * 2;
lightfx_add_3d_light(vehicleID, 0x0300 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, place_x, place_y, place_z + 10, LIGHTFX_LIGHT_TYPE_LANTERN_3);
place_x += offsetLookup[(vehicle->sprite_direction + 0) % 32] * 2;
place_y += offsetLookup[(vehicle->sprite_direction + 8) % 32] * 2;
lightfx_add_3d_light(vehicleID, 0x0400 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, place_x, place_y, place_z + 2, LIGHTFX_LIGHT_TYPE_LANTERN_3);
}
break;
case RIDE_TYPE_MINIATURE_RAILWAY:
if (vehicle == vehicle_get_head(vehicle)) {
place_x -= offsetLookup[(vehicle->sprite_direction + 0) % 32] * 2;
place_y -= offsetLookup[(vehicle->sprite_direction + 8) % 32] * 2;
lightfx_add_3d_light(vehicleID, 0x0100 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, place_x, place_y, place_z + 10, LIGHTFX_LIGHT_TYPE_LANTERN_3);
place_x -= offsetLookup[(vehicle->sprite_direction + 0) % 32] * 2;
place_y -= offsetLookup[(vehicle->sprite_direction + 8) % 32] * 2;
lightfx_add_3d_light(vehicleID, 0x0200 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, place_x, place_y, place_z + 2, LIGHTFX_LIGHT_TYPE_LANTERN_3);
}
else {
lightfx_add_3d_light(vehicleID, 0x0000 | LIGHTFX_LIGHT_QUALIFIER_SPRITE, place_x, place_y, place_z + 10, LIGHTFX_LIGHT_TYPE_LANTERN_3);
}
break;
default:
break;
};
}
}
}
void lightfx_apply_palette_filter(uint8 i, uint8 *r, uint8 *g, uint8 *b)
{
float night = (float)(pow(gDayNightCycle, 1.5));
float natLightR = 1.0f;
float natLightG = 1.0f;
float natLightB = 1.0f;
float elecMultR = 1.0f;
float elecMultG = 0.95f;
float elecMultB = 0.45f;
static float wetness = 0.0f;
static float fogginess = 0.0f;
static float lightPolution = 0.0f;
float sunLight = std::max(0.0f, std::min(1.0f, 2.0f - night * 3.0f));
// Night version
natLightR = flerp(natLightR * 4.0f, 0.635f, (float)(std::pow(night, 0.035f + sunLight * 10.50f)));
natLightG = flerp(natLightG * 4.0f, 0.650f, (float)(std::pow(night, 0.100f + sunLight * 5.50f)));
natLightB = flerp(natLightB * 4.0f, 0.850f, (float)(std::pow(night, 0.200f + sunLight * 1.5f)));
float overExpose = 0.0f;
float lightAvg = (natLightR + natLightG + natLightB) / 3.0f;
#ifdef LIGHTFX_UNKNOWN_PART_2
float lightMax = (natLightR + natLightG + natLightB) / 3.0f;
#endif // LIGHTFX_UNKNOWN_PART_2
// overExpose += ((lightMax - lightAvg) / lightMax) * 0.01f;
if (gClimateCurrent.Temperature > 20) {
float offset = ((float)(gClimateCurrent.Temperature - 20)) * 0.04f;
offset *= 1.0f - night;
lightAvg /= 1.0f + offset;
// overExpose += offset * 0.1f;
}
#ifdef LIGHTFX_UNKNOWN_PART_2
lightAvg += (lightMax - lightAvg) * 0.6f;
#endif // LIGHTFX_UNKNOWN_PART_2
if (lightAvg > 1.0f) {
natLightR /= lightAvg;
natLightG /= lightAvg;
natLightB /= lightAvg;
}
natLightR *= 1.0f + overExpose;
natLightG *= 1.0f + overExpose;
natLightB *= 1.0f + overExpose;
overExpose *= 255.0f;
float targetFogginess = (float)(gClimateCurrent.RainLevel) / 8.0f;
targetFogginess += (night * night) * 0.15f;
if (gClimateCurrent.Temperature < 10) {
targetFogginess += ((float)(10 - gClimateCurrent.Temperature)) * 0.01f;
}
fogginess -= (fogginess - targetFogginess) * 0.00001f;
wetness *= 0.999995f;
wetness += fogginess * 0.001f;
wetness = std::min(wetness, 1.0f);
float boost = 1.0f;
float envFog = fogginess;
float lightFog = envFog;
float addLightNatR = 0.0f;
float addLightNatG = 0.0f;
float addLightNatB = 0.0f;
float reduceColourNat = 1.0f;
float reduceColourLit = 1.0f;
reduceColourLit *= night / (float)std::pow(std::max(1.01f, 0.4f + lightAvg), 2.0);
float targetLightPollution = reduceColourLit * std::max(0.0f, 0.0f + 0.000001f * (float)lightfx_get_light_polution());
lightPolution -= (lightPolution - targetLightPollution) * 0.001f;
// lightPollution /= 1.0f + fogginess * 1.0f;
natLightR /= 1.0f + lightPolution * 20.0f;
natLightG /= 1.0f + lightPolution * 20.0f;
natLightB /= 1.0f + lightPolution * 20.0f;
natLightR += elecMultR * 0.6f * lightPolution;
natLightG += elecMultG * 0.6f * lightPolution;
natLightB += elecMultB * 0.6f * lightPolution;
natLightR /= 1.0f + lightPolution;
natLightG /= 1.0f + lightPolution;
natLightB /= 1.0f + lightPolution;
reduceColourLit += (float)(gClimateCurrent.RainLevel) / 2.0f;
reduceColourNat /= 1.0f + fogginess;
reduceColourLit /= 1.0f + fogginess;
lightFog *= reduceColourLit;
reduceColourNat *= 1.0f - envFog;
reduceColourLit *= 1.0f - lightFog;
float fogR = 35.5f * natLightR * 1.3f;
float fogG = 45.0f * natLightG * 1.3f;
float fogB = 50.0f * natLightB * 1.3f;
lightFog *= 10.0f;
float wetnessBoost = 1.0f;//1.0f + wetness * wetness * 0.1f;
if (night >= 0 && gClimateLightningFlash != 1) {
*r = lerp(*r, soft_light(*r, 8), night);
*g = lerp(*g, soft_light(*g, 8), night);
*b = lerp(*b, soft_light(*b, 128), night);
// if (i == 32)
// boost = 300000.0f;
if ((i % 32) == 0)
boost = 1.01f * wetnessBoost;
else if ((i % 16) < 7)
boost = 1.001f * wetnessBoost;
if (i > 230 && i < 232)
boost = ((float)(*b)) / 64.0f;
if (false) {
// This experiment shifts the colour of pixels as-if they are wet, but it is not a pretty solution at all
if ((i % 16)) {
float iVal = ((float)((i + 12) % 16)) / 16.0f;
float eff = (wetness * ((float)std::pow(iVal, 1.5) * 0.85f));
reduceColourNat *= 1.0f - eff;
addLightNatR += fogR * eff * 3.95f;
addLightNatG += fogR * eff * 3.95f;
addLightNatB += fogR * eff * 3.95f;
}
}
addLightNatR *= 1.0f - envFog;
addLightNatG *= 1.0f - envFog;
addLightNatB *= 1.0f - envFog;
*r = (uint8)(std::min(255.0f, std::max(0.0f, (-overExpose + (float)(*r) * reduceColourNat * natLightR + envFog * fogR + addLightNatR))));
*g = (uint8)(std::min(255.0f, std::max(0.0f, (-overExpose + (float)(*g) * reduceColourNat * natLightG + envFog * fogG + addLightNatG))));
*b = (uint8)(std::min(255.0f, std::max(0.0f, (-overExpose + (float)(*b) * reduceColourNat * natLightB + envFog * fogB + addLightNatB))));
rct_palette_entry * dstEntry = &gPalette_light.entries[i];
dstEntry->red = (uint8)(std::min<float>(0xFF, ((float)(*r) * reduceColourLit * boost + lightFog) * elecMultR));
dstEntry->green = (uint8)(std::min<float>(0xFF, ((float)(*g) * reduceColourLit * boost + lightFog) * elecMultG));
dstEntry->blue = (uint8)(std::min<float>(0xFF, ((float)(*b) * reduceColourLit * boost + lightFog) * elecMultB));
}
}
static uint8 mix_light(uint32 a, uint32 b, uint32 intensity)
{
intensity = intensity * 6;
uint32 bMul = (b * intensity) >> 8;
uint32 ab = a + bMul;
uint8 result = std::min<uint32>(255, ab);
return result;
}
void lightfx_render_to_texture(
void * dstPixels,
uint32 dstPitch,
uint8 * bits,
uint32 width,
uint32 height,
const uint32 * palette,
const uint32 * lightPalette)
{
lightfx_update_viewport_settings();
lightfx_swap_buffers();
lightfx_prepare_light_list();
lightfx_render_lights_to_frontbuffer();
uint8 * lightBits = (uint8 *)lightfx_get_front_buffer();
if (lightBits == nullptr) {
return;
}
for (uint32 y = 0; y < height; y++) {
uintptr_t dstOffset = (uintptr_t)(y * dstPitch);
uint32 * dst = (uint32 *)((uintptr_t)dstPixels + dstOffset);
for (uint32 x = 0; x < width; x++) {
uint8 * src = &bits[y * width + x];
uint32 darkColour = palette[*src];
uint32 lightColour = lightPalette[*src];
uint8 lightIntensity = lightBits[y * width + x];
uint32 colour = 0;
if (lightIntensity == 0) {
colour = darkColour;
} else {
colour |= mix_light((darkColour >> 0) & 0xFF, (lightColour >> 0) & 0xFF, lightIntensity);
colour |= mix_light((darkColour >> 8) & 0xFF, (lightColour >> 8) & 0xFF, lightIntensity) << 8;
colour |= mix_light((darkColour >> 16) & 0xFF, (lightColour >> 16) & 0xFF, lightIntensity) << 16;
colour |= mix_light((darkColour >> 24) & 0xFF, (lightColour >> 24) & 0xFF, lightIntensity) << 24;
}
*dst++ = colour;
}
}
}
}
#endif // __ENABLE_LIGHTFX__
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