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OpenRCT2/src/openrct2-ui/windows/TrackDesignPlace.cpp

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/*****************************************************************************
* Copyright (c) 2014-2020 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 <algorithm>
#include <openrct2-ui/interface/Viewport.h>
#include <openrct2-ui/interface/Widget.h>
#include <openrct2-ui/windows/Window.h>
#include <openrct2/Cheats.h>
#include <openrct2/Context.h>
#include <openrct2/Game.h>
#include <openrct2/Input.h>
#include <openrct2/actions/TrackDesignAction.h>
#include <openrct2/audio/audio.h>
#include <openrct2/localisation/Localisation.h>
#include <openrct2/ride/RideData.h>
#include <openrct2/ride/Track.h>
#include <openrct2/ride/TrackData.h>
#include <openrct2/ride/TrackDesign.h>
#include <openrct2/ride/TrackDesignRepository.h>
#include <openrct2/sprites.h>
#include <openrct2/ui/UiContext.h>
#include <openrct2/ui/WindowManager.h>
#include <openrct2/windows/Intent.h>
#include <openrct2/world/Park.h>
#include <openrct2/world/Surface.h>
#include <vector>
using namespace OpenRCT2;
static constexpr const rct_string_id WINDOW_TITLE = STR_STRING;
static constexpr const int32_t WH = 124;
static constexpr const int32_t WW = 200;
constexpr int16_t TRACK_MINI_PREVIEW_WIDTH = 168;
constexpr int16_t TRACK_MINI_PREVIEW_HEIGHT = 78;
constexpr uint16_t TRACK_MINI_PREVIEW_SIZE = TRACK_MINI_PREVIEW_WIDTH * TRACK_MINI_PREVIEW_HEIGHT;
struct rct_track_td6;
static constexpr uint8_t _PaletteIndexColourEntrance = PALETTE_INDEX_20; // White
static constexpr uint8_t _PaletteIndexColourExit = PALETTE_INDEX_10; // Black
static constexpr uint8_t _PaletteIndexColourTrack = PALETTE_INDEX_248; // Grey (dark)
static constexpr uint8_t _PaletteIndexColourStation = PALETTE_INDEX_252; // Grey (light)
// clang-format off
enum {
WIDX_BACKGROUND,
WIDX_TITLE,
WIDX_CLOSE,
WIDX_ROTATE,
WIDX_MIRROR,
WIDX_SELECT_DIFFERENT_DESIGN,
WIDX_PRICE
};
validate_global_widx(WC_TRACK_DESIGN_PLACE, WIDX_ROTATE);
static rct_widget window_track_place_widgets[] = {
WINDOW_SHIM(WINDOW_TITLE, WW, WH),
MakeWidget({173, 83}, { 24, 24}, WindowWidgetType::FlatBtn, WindowColour::Primary, SPR_ROTATE_ARROW, STR_ROTATE_90_TIP ),
MakeWidget({173, 59}, { 24, 24}, WindowWidgetType::FlatBtn, WindowColour::Primary, SPR_MIRROR_ARROW, STR_MIRROR_IMAGE_TIP ),
MakeWidget({ 4, 109}, {192, 12}, WindowWidgetType::Button, WindowColour::Primary, STR_SELECT_A_DIFFERENT_DESIGN, STR_GO_BACK_TO_DESIGN_SELECTION_WINDOW_TIP),
MakeWidget({ 0, 0}, { 1, 1}, WindowWidgetType::Empty, WindowColour::Primary),
{ WIDGETS_END },
};
static void window_track_place_close(rct_window *w);
static void window_track_place_mouseup(rct_window *w, rct_widgetindex widgetIndex);
static void window_track_place_update(rct_window *w);
static void window_track_place_toolupdate(rct_window* w, rct_widgetindex widgetIndex, const ScreenCoordsXY& screenCoords);
static void window_track_place_tooldown(rct_window* w, rct_widgetindex widgetIndex, const ScreenCoordsXY& screenCoords);
static void window_track_place_toolabort(rct_window *w, rct_widgetindex widgetIndex);
static void window_track_place_unknown14(rct_window *w);
static void window_track_place_invalidate(rct_window *w);
static void window_track_place_paint(rct_window *w, rct_drawpixelinfo *dpi);
static rct_window_event_list window_track_place_events([](auto& events)
{
events.close = &window_track_place_close;
events.mouse_up = &window_track_place_mouseup;
events.update = &window_track_place_update;
events.tool_update = &window_track_place_toolupdate;
events.tool_down = &window_track_place_tooldown;
events.tool_abort = &window_track_place_toolabort;
events.viewport_rotate = &window_track_place_unknown14;
events.invalidate = &window_track_place_invalidate;
events.paint = &window_track_place_paint;
});
// clang-format on
static std::vector<uint8_t> _window_track_place_mini_preview;
static CoordsXY _windowTrackPlaceLast;
static ride_id_t _window_track_place_ride_index;
static bool _window_track_place_last_was_valid;
static CoordsXYZ _windowTrackPlaceLastValid;
static money32 _window_track_place_last_cost;
static std::unique_ptr<TrackDesign> _trackDesign;
static void window_track_place_clear_provisional();
static int32_t window_track_place_get_base_z(const CoordsXY& loc);
static void window_track_place_clear_mini_preview();
static void window_track_place_draw_mini_preview(TrackDesign* td6);
static void window_track_place_draw_mini_preview_track(
TrackDesign* td6, int32_t pass, const CoordsXY& origin, CoordsXY min, CoordsXY max);
static void window_track_place_draw_mini_preview_maze(
TrackDesign* td6, int32_t pass, const CoordsXY& origin, CoordsXY min, CoordsXY max);
static ScreenCoordsXY draw_mini_preview_get_pixel_position(const CoordsXY& location);
static bool draw_mini_preview_is_pixel_in_bounds(const ScreenCoordsXY& pixel);
static uint8_t* draw_mini_preview_get_pixel_ptr(const ScreenCoordsXY& pixel);
/**
*
* rct2: 0x006D182E
*/
static void window_track_place_clear_mini_preview()
{
// Fill with transparent colour.
std::fill(_window_track_place_mini_preview.begin(), _window_track_place_mini_preview.end(), PALETTE_INDEX_0);
}
/**
*
* rct2: 0x006CFCA0
*/
rct_window* window_track_place_open(const track_design_file_ref* tdFileRef)
{
_trackDesign = track_design_open(tdFileRef->path);
if (_trackDesign == nullptr)
{
return nullptr;
}
window_close_construction_windows();
_window_track_place_mini_preview.resize(TRACK_MINI_PREVIEW_SIZE);
rct_window* w = WindowCreate(ScreenCoordsXY(0, 29), 200, 124, &window_track_place_events, WC_TRACK_DESIGN_PLACE, 0);
w->widgets = window_track_place_widgets;
w->enabled_widgets = 1 << WIDX_CLOSE | 1 << WIDX_ROTATE | 1 << WIDX_MIRROR | 1 << WIDX_SELECT_DIFFERENT_DESIGN;
WindowInitScrollWidgets(w);
tool_set(w, WIDX_PRICE, Tool::Crosshair);
input_set_flag(INPUT_FLAG_6, true);
window_push_others_right(w);
show_gridlines();
_window_track_place_last_cost = MONEY32_UNDEFINED;
_windowTrackPlaceLast.setNull();
_currentTrackPieceDirection = (2 - get_current_rotation()) & 3;
window_track_place_clear_mini_preview();
window_track_place_draw_mini_preview(_trackDesign.get());
return w;
}
/**
*
* rct2: 0x006D0119
*/
static void window_track_place_close(rct_window* w)
{
window_track_place_clear_provisional();
viewport_set_visibility(0);
map_invalidate_map_selection_tiles();
gMapSelectFlags &= ~MAP_SELECT_FLAG_ENABLE_CONSTRUCT;
gMapSelectFlags &= ~MAP_SELECT_FLAG_ENABLE_ARROW;
hide_gridlines();
_window_track_place_mini_preview.clear();
_window_track_place_mini_preview.shrink_to_fit();
_trackDesign = nullptr;
}
/**
*
* rct2: 0x006CFEAC
*/
static void window_track_place_mouseup(rct_window* w, rct_widgetindex widgetIndex)
{
switch (widgetIndex)
{
case WIDX_CLOSE:
window_close(w);
break;
case WIDX_ROTATE:
window_track_place_clear_provisional();
_currentTrackPieceDirection = (_currentTrackPieceDirection + 1) & 3;
w->Invalidate();
_windowTrackPlaceLast.setNull();
window_track_place_draw_mini_preview(_trackDesign.get());
break;
case WIDX_MIRROR:
track_design_mirror(_trackDesign.get());
_currentTrackPieceDirection = (0 - _currentTrackPieceDirection) & 3;
w->Invalidate();
_windowTrackPlaceLast.setNull();
window_track_place_draw_mini_preview(_trackDesign.get());
break;
case WIDX_SELECT_DIFFERENT_DESIGN:
window_close(w);
auto intent = Intent(WC_TRACK_DESIGN_LIST);
intent.putExtra(INTENT_EXTRA_RIDE_TYPE, _window_track_list_item.Type);
intent.putExtra(INTENT_EXTRA_RIDE_ENTRY_INDEX, _window_track_list_item.EntryIndex);
context_open_intent(&intent);
break;
}
}
/**
*
* rct2: 0x006CFCA0
*/
static void window_track_place_update(rct_window* w)
{
if (!(input_test_flag(INPUT_FLAG_TOOL_ACTIVE)))
if (gCurrentToolWidget.window_classification != WC_TRACK_DESIGN_PLACE)
window_close(w);
}
static GameActions::Result::Ptr FindValidTrackDesignPlaceHeight(CoordsXYZ& loc, uint32_t flags)
{
GameActions::Result::Ptr res;
for (int32_t i = 0; i < 7; i++, loc.z += 8)
{
auto tdAction = TrackDesignAction(CoordsXYZD{ loc.x, loc.y, loc.z, _currentTrackPieceDirection }, *_trackDesign);
tdAction.SetFlags(flags);
res = GameActions::Query(&tdAction);
// If successful don't keep trying.
// If failure due to no money then increasing height only makes problem worse
if (res->Error == GameActions::Status::Ok || res->Error == GameActions::Status::InsufficientFunds)
{
return res;
}
}
return res;
}
/**
*
* rct2: 0x006CFF2D
*/
static void window_track_place_toolupdate(rct_window* w, rct_widgetindex widgetIndex, const ScreenCoordsXY& screenCoords)
{
int16_t mapZ;
map_invalidate_map_selection_tiles();
gMapSelectFlags &= ~MAP_SELECT_FLAG_ENABLE;
gMapSelectFlags &= ~MAP_SELECT_FLAG_ENABLE_CONSTRUCT;
gMapSelectFlags &= ~MAP_SELECT_FLAG_ENABLE_ARROW;
// Get the tool map position
CoordsXY mapCoords = ViewportInteractionGetTileStartAtCursor(screenCoords);
if (mapCoords.isNull())
{
window_track_place_clear_provisional();
return;
}
// Check if tool map position has changed since last update
if (mapCoords == _windowTrackPlaceLast)
{
place_virtual_track(_trackDesign.get(), PTD_OPERATION_DRAW_OUTLINES, true, GetOrAllocateRide(0), { mapCoords, 0 });
return;
}
money32 cost = MONEY32_UNDEFINED;
// Get base Z position
mapZ = window_track_place_get_base_z(mapCoords);
CoordsXYZ trackLoc = { mapCoords, mapZ };
if (game_is_not_paused() || gCheatsBuildInPauseMode)
{
window_track_place_clear_provisional();
auto res = FindValidTrackDesignPlaceHeight(trackLoc, GAME_COMMAND_FLAG_NO_SPEND | GAME_COMMAND_FLAG_GHOST);
if (res->Error == GameActions::Status::Ok)
{
// Valid location found. Place the ghost at the location.
auto tdAction = TrackDesignAction({ trackLoc, _currentTrackPieceDirection }, *_trackDesign);
tdAction.SetFlags(GAME_COMMAND_FLAG_NO_SPEND | GAME_COMMAND_FLAG_GHOST);
tdAction.SetCallback([trackLoc](const GameAction*, const TrackDesignActionResult* result) {
if (result->Error == GameActions::Status::Ok)
{
_window_track_place_ride_index = result->rideIndex;
_windowTrackPlaceLastValid = trackLoc;
_window_track_place_last_was_valid = true;
}
});
res = GameActions::Execute(&tdAction);
cost = res->Error == GameActions::Status::Ok ? res->Cost : MONEY32_UNDEFINED;
}
}
_windowTrackPlaceLast = trackLoc;
if (cost != _window_track_place_last_cost)
{
_window_track_place_last_cost = cost;
widget_invalidate(w, WIDX_PRICE);
}
place_virtual_track(_trackDesign.get(), PTD_OPERATION_DRAW_OUTLINES, true, GetOrAllocateRide(0), trackLoc);
}
/**
*
* rct2: 0x006CFF34
*/
static void window_track_place_tooldown(rct_window* w, rct_widgetindex widgetIndex, const ScreenCoordsXY& screenCoords)
{
window_track_place_clear_provisional();
map_invalidate_map_selection_tiles();
gMapSelectFlags &= ~MAP_SELECT_FLAG_ENABLE;
gMapSelectFlags &= ~MAP_SELECT_FLAG_ENABLE_CONSTRUCT;
gMapSelectFlags &= ~MAP_SELECT_FLAG_ENABLE_ARROW;
const CoordsXY mapCoords = ViewportInteractionGetTileStartAtCursor(screenCoords);
if (mapCoords.isNull())
return;
// Try increasing Z until a feasible placement is found
int16_t mapZ = window_track_place_get_base_z(mapCoords);
CoordsXYZ trackLoc = { mapCoords, mapZ };
auto res = FindValidTrackDesignPlaceHeight(trackLoc, 0);
if (res->Error == GameActions::Status::Ok)
{
auto tdAction = TrackDesignAction({ trackLoc, _currentTrackPieceDirection }, *_trackDesign);
tdAction.SetCallback([trackLoc](const GameAction*, const TrackDesignActionResult* result) {
if (result->Error == GameActions::Status::Ok)
{
auto ride = get_ride(result->rideIndex);
if (ride != nullptr)
{
window_close_by_class(WC_ERROR);
OpenRCT2::Audio::Play3D(OpenRCT2::Audio::SoundId::PlaceItem, trackLoc);
_currentRideIndex = result->rideIndex;
if (track_design_are_entrance_and_exit_placed())
{
auto intent = Intent(WC_RIDE);
intent.putExtra(INTENT_EXTRA_RIDE_ID, result->rideIndex);
context_open_intent(&intent);
auto wnd = window_find_by_class(WC_TRACK_DESIGN_PLACE);
window_close(wnd);
}
else
{
ride_initialise_construction_window(ride);
auto wnd = window_find_by_class(WC_RIDE_CONSTRUCTION);
window_event_mouse_up_call(wnd, WC_RIDE_CONSTRUCTION__WIDX_ENTRANCE);
}
}
}
else
{
OpenRCT2::Audio::Play3D(OpenRCT2::Audio::SoundId::Error, result->Position);
}
});
GameActions::Execute(&tdAction);
return;
}
// Unable to build track
OpenRCT2::Audio::Play3D(OpenRCT2::Audio::SoundId::Error, trackLoc);
auto windowManager = GetContext()->GetUiContext()->GetWindowManager();
windowManager->ShowError(res->GetErrorTitle(), res->GetErrorMessage());
}
/**
*
* rct2: 0x006D015C
*/
static void window_track_place_toolabort(rct_window* w, rct_widgetindex widgetIndex)
{
window_track_place_clear_provisional();
}
/**
*
* rct2: 0x006CFF01
*/
static void window_track_place_unknown14(rct_window* w)
{
window_track_place_draw_mini_preview(_trackDesign.get());
}
static void window_track_place_invalidate(rct_window* w)
{
window_track_place_draw_mini_preview(_trackDesign.get());
}
/**
*
* rct2: 0x006D017F
*/
static void window_track_place_clear_provisional()
{
if (_window_track_place_last_was_valid)
{
auto ride = get_ride(_window_track_place_ride_index);
if (ride != nullptr)
{
place_virtual_track(_trackDesign.get(), PTD_OPERATION_REMOVE_GHOST, true, ride, _windowTrackPlaceLastValid);
_window_track_place_last_was_valid = false;
}
}
}
void TrackPlaceClearProvisionalTemporarily()
{
if (_window_track_place_last_was_valid)
{
auto ride = get_ride(_window_track_place_ride_index);
if (ride != nullptr)
{
place_virtual_track(_trackDesign.get(), PTD_OPERATION_REMOVE_GHOST, true, ride, _windowTrackPlaceLastValid);
}
}
}
void TrackPlaceRestoreProvisional()
{
if (_window_track_place_last_was_valid)
{
auto tdAction = TrackDesignAction({ _windowTrackPlaceLastValid, _currentTrackPieceDirection }, *_trackDesign);
tdAction.SetFlags(GAME_COMMAND_FLAG_NO_SPEND | GAME_COMMAND_FLAG_GHOST);
auto res = GameActions::Execute(&tdAction);
if (res->Error != GameActions::Status::Ok)
{
_window_track_place_last_was_valid = false;
}
}
}
/**
*
* rct2: 0x006D17C6
*/
static int32_t window_track_place_get_base_z(const CoordsXY& loc)
{
auto surfaceElement = map_get_surface_element_at(loc);
if (surfaceElement == nullptr)
return 0;
auto z = surfaceElement->GetBaseZ();
// Increase Z above slope
if (surfaceElement->GetSlope() & TILE_ELEMENT_SLOPE_ALL_CORNERS_UP)
{
z += 16;
// Increase Z above double slope
if (surfaceElement->GetSlope() & TILE_ELEMENT_SLOPE_DOUBLE_HEIGHT)
z += 16;
}
// Increase Z above water
if (surfaceElement->GetWaterHeight() > 0)
z = std::max(z, surfaceElement->GetWaterHeight());
return z + place_virtual_track(_trackDesign.get(), PTD_OPERATION_GET_PLACE_Z, true, GetOrAllocateRide(0), { loc, z });
}
/**
*
* rct2: 0x006CFD9D
*/
static void window_track_place_paint(rct_window* w, rct_drawpixelinfo* dpi)
{
auto ft = Formatter::Common();
ft.Add<char*>(_trackDesign->name.c_str());
WindowDrawWidgets(w, dpi);
// Draw mini tile preview
rct_drawpixelinfo clippedDpi;
if (clip_drawpixelinfo(&clippedDpi, dpi, w->windowPos + ScreenCoordsXY{ 4, 18 }, 168, 78))
{
rct_g1_element g1temp = {};
g1temp.offset = _window_track_place_mini_preview.data();
g1temp.width = TRACK_MINI_PREVIEW_WIDTH;
g1temp.height = TRACK_MINI_PREVIEW_HEIGHT;
gfx_set_g1_element(SPR_TEMP, &g1temp);
drawing_engine_invalidate_image(SPR_TEMP);
gfx_draw_sprite(&clippedDpi, ImageId(SPR_TEMP, NOT_TRANSLUCENT(w->colours[0])), { 0, 0 });
}
// Price
if (_window_track_place_last_cost != MONEY32_UNDEFINED && !(gParkFlags & PARK_FLAGS_NO_MONEY))
{
DrawTextBasic(
dpi, w->windowPos + ScreenCoordsXY{ 88, 94 }, STR_COST_LABEL, &_window_track_place_last_cost,
{ TextAlignment::CENTRE });
}
}
/**
*
* rct2: 0x006D1845
*/
static void window_track_place_draw_mini_preview(TrackDesign* td6)
{
window_track_place_clear_mini_preview();
// First pass is used to determine the width and height of the image so it can centre it
CoordsXY min = { 0, 0 };
CoordsXY max = { 0, 0 };
for (int32_t pass = 0; pass < 2; pass++)
{
CoordsXY origin = { 0, 0 };
if (pass == 1)
{
origin.x -= ((max.x + min.x) >> 6) * COORDS_XY_STEP;
origin.y -= ((max.y + min.y) >> 6) * COORDS_XY_STEP;
}
if (td6->type == RIDE_TYPE_MAZE)
{
window_track_place_draw_mini_preview_maze(td6, pass, origin, min, max);
}
else
{
window_track_place_draw_mini_preview_track(td6, pass, origin, min, max);
}
}
}
static void window_track_place_draw_mini_preview_track(
TrackDesign* td6, int32_t pass, const CoordsXY& origin, CoordsXY min, CoordsXY max)
{
const uint8_t rotation = (_currentTrackPieceDirection + get_current_rotation()) & 3;
CoordsXY curTrackStart = origin;
uint8_t curTrackRotation = rotation;
for (const auto& trackElement : td6->track_elements)
{
int32_t trackType = trackElement.type;
if (trackType == TrackElemType::InvertedUp90ToFlatQuarterLoopAlias)
{
trackType = TrackElemType::MultiDimInvertedUp90ToFlatQuarterLoop;
}
// Follow a single track piece shape
const rct_preview_track* trackBlock = TrackBlocks[trackType];
while (trackBlock->index != 255)
{
auto rotatedAndOffsetTrackBlock = curTrackStart + CoordsXY{ trackBlock->x, trackBlock->y }.Rotate(curTrackRotation);
if (pass == 0)
{
min.x = std::min(min.x, rotatedAndOffsetTrackBlock.x);
max.x = std::max(max.x, rotatedAndOffsetTrackBlock.x);
min.y = std::min(min.y, rotatedAndOffsetTrackBlock.y);
max.y = std::max(max.y, rotatedAndOffsetTrackBlock.y);
}
else
{
auto pixelPosition = draw_mini_preview_get_pixel_position(rotatedAndOffsetTrackBlock);
if (draw_mini_preview_is_pixel_in_bounds(pixelPosition))
{
uint8_t* pixel = draw_mini_preview_get_pixel_ptr(pixelPosition);
auto bits = trackBlock->var_08.Rotate(curTrackRotation & 3).GetBaseQuarterOccupied();
// Station track is a lighter colour
uint8_t colour = (TrackSequenceProperties[trackType][0] & TRACK_SEQUENCE_FLAG_ORIGIN)
? _PaletteIndexColourStation
: _PaletteIndexColourTrack;
for (int32_t i = 0; i < 4; i++)
{
if (bits & 1)
pixel[338 + i] = colour; // x + 2, y + 2
if (bits & 2)
pixel[168 + i] = colour; // y + 1
if (bits & 4)
pixel[2 + i] = colour; // x + 2
if (bits & 8)
pixel[172 + i] = colour; // x + 4, y + 1
}
}
}
trackBlock++;
}
// Change rotation and next position based on track curvature
curTrackRotation &= 3;
const rct_track_coordinates* track_coordinate = &TrackCoordinates[trackType];
curTrackStart += CoordsXY{ track_coordinate->x, track_coordinate->y }.Rotate(curTrackRotation);
curTrackRotation += track_coordinate->rotation_end - track_coordinate->rotation_begin;
curTrackRotation &= 3;
if (track_coordinate->rotation_end & 4)
{
curTrackRotation |= 4;
}
if (!(curTrackRotation & 4))
{
curTrackStart += CoordsDirectionDelta[curTrackRotation];
}
}
// Draw entrance and exit preview.
for (const auto& entrance : td6->entrance_elements)
{
auto rotatedAndOffsetEntrance = origin + CoordsXY{ entrance.x, entrance.y }.Rotate(rotation);
if (pass == 0)
{
min.x = std::min(min.x, rotatedAndOffsetEntrance.x);
max.x = std::max(max.x, rotatedAndOffsetEntrance.x);
min.y = std::min(min.y, rotatedAndOffsetEntrance.y);
max.y = std::max(max.y, rotatedAndOffsetEntrance.y);
}
else
{
auto pixelPosition = draw_mini_preview_get_pixel_position(rotatedAndOffsetEntrance);
if (draw_mini_preview_is_pixel_in_bounds(pixelPosition))
{
uint8_t* pixel = draw_mini_preview_get_pixel_ptr(pixelPosition);
uint8_t colour = entrance.isExit ? _PaletteIndexColourExit : _PaletteIndexColourEntrance;
for (int32_t i = 0; i < 4; i++)
{
pixel[338 + i] = colour; // x + 2, y + 2
pixel[168 + i] = colour; // y + 1
pixel[2 + i] = colour; // x + 2
pixel[172 + i] = colour; // x + 4, y + 1
}
}
}
}
}
static void window_track_place_draw_mini_preview_maze(
TrackDesign* td6, int32_t pass, const CoordsXY& origin, CoordsXY min, CoordsXY max)
{
uint8_t rotation = (_currentTrackPieceDirection + get_current_rotation()) & 3;
for (const auto& mazeElement : td6->maze_elements)
{
auto rotatedMazeCoords = origin + TileCoordsXY{ mazeElement.x, mazeElement.y }.ToCoordsXY().Rotate(rotation);
if (pass == 0)
{
min.x = std::min(min.x, rotatedMazeCoords.x);
max.x = std::max(max.x, rotatedMazeCoords.x);
min.y = std::min(min.y, rotatedMazeCoords.y);
max.y = std::max(max.y, rotatedMazeCoords.y);
}
else
{
auto pixelPosition = draw_mini_preview_get_pixel_position(rotatedMazeCoords);
if (draw_mini_preview_is_pixel_in_bounds(pixelPosition))
{
uint8_t* pixel = draw_mini_preview_get_pixel_ptr(pixelPosition);
uint8_t colour = _PaletteIndexColourTrack;
// Draw entrance and exit with different colours.
if (mazeElement.type == MAZE_ELEMENT_TYPE_ENTRANCE)
colour = _PaletteIndexColourEntrance;
else if (mazeElement.type == MAZE_ELEMENT_TYPE_EXIT)
colour = _PaletteIndexColourExit;
for (int32_t i = 0; i < 4; i++)
{
pixel[338 + i] = colour; // x + 2, y + 2
pixel[168 + i] = colour; // y + 1
pixel[2 + i] = colour; // x + 2
pixel[172 + i] = colour; // x + 4, y + 1
}
}
}
}
}
static ScreenCoordsXY draw_mini_preview_get_pixel_position(const CoordsXY& location)
{
auto tilePos = TileCoordsXY(location);
return { (80 + (tilePos.y - tilePos.x) * 4), (38 + (tilePos.y + tilePos.x) * 2) };
}
static bool draw_mini_preview_is_pixel_in_bounds(const ScreenCoordsXY& pixel)
{
return pixel.x >= 0 && pixel.y >= 0 && pixel.x <= 160 && pixel.y <= 75;
}
static uint8_t* draw_mini_preview_get_pixel_ptr(const ScreenCoordsXY& pixel)
{
return &_window_track_place_mini_preview[pixel.y * TRACK_MINI_PREVIEW_WIDTH + pixel.x];
}
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