/**

 * Clone the building sprites of a spritelayout.

 * @param source The building sprites to copy.

 */

void NewGRFSpriteLayout::Clone(const DrawTileSeqStruct *source)

{

	assert(this->seq == NULL);

	assert(source != NULL);

	size_t count = 1; // 1 for the terminator

	const DrawTileSeqStruct *element;

	foreach_draw_tile_seq(element, source) count++;

	DrawTileSeqStruct *sprites = MallocT<DrawTileSeqStruct>(count);

	MemCpyT(sprites, source, count);

	this->seq = sprites;

}

/**

 * Allocate a spritelayout for \a num_sprites building sprites.

 * @param num_sprites Number of building sprites to allocate memory for. (not counting the terminator)

 */

void NewGRFSpriteLayout::Allocate(uint num_sprites)

{

	assert(this->seq == NULL);

	DrawTileSeqStruct *sprites = CallocT<DrawTileSeqStruct>(num_sprites + 1);

	sprites[num_sprites].MakeTerminator();

	this->seq = sprites;

}