Function DrawNewHouseTileInGUI

src/newgrf_house.cpp:524–554

* Draw representation of a house tile for GUI purposes. * @param x Position x of image. * @param y Position y of image. * @param spec House spec to draw. * @param house_id House ID to draw. * @param view The house's 'view'. */

 * @param view The house's 'view'.
 */
void DrawNewHouseTileInGUI(int x, int y, const HouseSpec *spec, HouseID house_id, int view)
{
	HouseResolverObject object(house_id, INVALID_TILE, nullptr, CBID_NO_CALLBACK, 0, 0, true, view);
	const auto *group = object.Resolve<TileLayoutSpriteGroup>();
	if (group == nullptr) return;

	uint8_t stage = TOWN_HOUSE_COMPLETED;
	auto processor = group->ProcessRegisters(object, &stage);
	auto dts = processor.GetLayout();

	PaletteID palette = GetColourPalette(spec->random_colour[0]);
	if (spec->callback_mask.Test(HouseCallbackMask::Colour)) {
		uint16_t callback = GetHouseCallback(CBID_HOUSE_COLOUR, 0, 0, house_id, nullptr, INVALID_TILE, {}, true, view);
		if (callback != CALLBACK_FAILED) {
			/* If bit 14 is set, we should use a 2cc colour map, else use the callback value. */
			palette = HasBit(callback, 14) ? GB(callback, 0, 8) + SPR_2CCMAP_BASE : callback;
		}
	}

	SpriteID image = dts.ground.sprite;
	PaletteID pal = dts.ground.pal;

	if (HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE)) image += stage;
	if (HasBit(pal, SPRITE_MODIFIER_CUSTOM_SPRITE)) pal += stage;

	if (GB(image, 0, SPRITE_WIDTH) != 0) {
		DrawSprite(image, GroundSpritePaletteTransform(image, pal, palette), x, y);
	}

	DrawNewGRFTileSeqInGUI(x, y, &dts, stage, palette);
}

/* Simple wrapper for GetHouseCallback to keep the animation unified. */
static uint16_t GetSimpleHouseCallback(CallbackID callback, uint32_t param1, uint32_t param2, const HouseSpec *spec, Town *town, TileIndex tile, CargoTypes extra_data)