// Calculates the tile's dimensions from the texture and texture coordinates.
void DecoratorTiled::Tile::CalculateDimensions(Element* element, const Texture& texture)
{
RenderInterface* render_interface = element->GetRenderInterface();
TileDataMap::iterator data_iterator = data.find(render_interface);
if (data_iterator == data.end())
{
TileData new_data;
Vector2i texture_dimensions = texture.GetDimensions(render_interface);
for (int i = 0; i < 2; i++)
{
new_data.texcoords[i] = texcoords[i];
if (texcoords_absolute[i][0] &&
texture_dimensions.x > 0)
new_data.texcoords[i].x /= texture_dimensions.x;
if (texcoords_absolute[i][1] &&
texture_dimensions.y > 0)
new_data.texcoords[i].y /= texture_dimensions.y;
}
new_data.dimensions.x = Math::AbsoluteValue((new_data.texcoords[1].x * texture_dimensions.x) - (new_data.texcoords[0].x * texture_dimensions.x));
new_data.dimensions.y = Math::AbsoluteValue((new_data.texcoords[1].y * texture_dimensions.y) - (new_data.texcoords[0].y * texture_dimensions.y));
data[render_interface] = new_data;
}
}
