Function InitBlocksizeForVehicles

src/depot_gui.cpp:171–213

}

static void InitBlocksizeForVehicles(VehicleType type, EngineImageType image_type)
{
	int max_extend_left  = 0;
	int max_extend_right = 0;
	uint max_height = 0;

	for (const Engine *e : Engine::IterateType(type)) {
		if (!e->IsEnabled()) continue;

		EngineID eid = e->index;
		uint x, y;
		int x_offs, y_offs;

		switch (type) {
			default: NOT_REACHED();
			case VEH_TRAIN:    GetTrainSpriteSize(   eid, x, y, x_offs, y_offs, image_type); break;
			case VEH_ROAD:     GetRoadVehSpriteSize( eid, x, y, x_offs, y_offs, image_type); break;
			case VEH_SHIP:     GetShipSpriteSize(    eid, x, y, x_offs, y_offs, image_type); break;
			case VEH_AIRCRAFT: GetAircraftSpriteSize(eid, x, y, x_offs, y_offs, image_type); break;
		}
		if (y > max_height) max_height = y;
		if (-x_offs > max_extend_left) max_extend_left = -x_offs;
		if ((int)x + x_offs > max_extend_right) max_extend_right = x + x_offs;
	}

	int min_extend = ScaleSpriteTrad(16);
	int max_extend = ScaleSpriteTrad(98);

	switch (image_type) {
		case EIT_IN_DEPOT:
			_base_block_sizes_depot[type].height       = std::max<uint>(ScaleSpriteTrad(GetVehicleHeight(type)), max_height);
			_base_block_sizes_depot[type].extend_left  = Clamp(max_extend_left, min_extend, max_extend);
			_base_block_sizes_depot[type].extend_right = Clamp(max_extend_right, min_extend, max_extend);
			break;
		case EIT_PURCHASE:
			_base_block_sizes_purchase[type].height       = std::max<uint>(ScaleSpriteTrad(GetVehicleHeight(type)), max_height);
			_base_block_sizes_purchase[type].extend_left  = Clamp(max_extend_left, min_extend, max_extend);
			_base_block_sizes_purchase[type].extend_right = Clamp(max_extend_right, min_extend, max_extend);
			break;

		default: NOT_REACHED();
	}
}

/**
 * Set the size of the blocks in the window so we can be sure that they are big enough for the vehicle sprites in the current game.