HaxePunk/HaxePunk

package haxepunk.screen;

/**
 * The default ScaleMode stretches the game area to fill the screen. This can
 * result in non-uniform scaling.
 * @since    2.6.0
 */
class ScaleMode
{
    public var integer:Bool = false;

    var baseWidth:Int = 0;
    var baseHeight:Int = 0;

    /**
     * @param    integer        Whether scale should be rounded to an integer.
     */
    public function new(integer:Bool = false)
    {
        this.integer = integer;
        setBaseSize(HXP.width, HXP.height);
    }

    public function setBaseSize(width:Int = -1, height:Int = -1)
    {
        if (width == -1) width = HXP.width;
        if (height == -1) height = HXP.height;
        baseWidth = width;
        baseHeight = height;
    }

    public function resize(stageWidth:Int, stageHeight:Int)
    {
        HXP.screen.x = HXP.screen.y = 0;
        HXP.screen.scaleX = stageWidth / baseWidth;
        HXP.screen.scaleY = stageHeight / baseHeight;
        HXP.screen.width = stageWidth;
        HXP.screen.height = stageHeight;

        if (integer)
        {
            HXP.screen.scaleX = Std.int(Math.max(1, HXP.screen.scaleX));
            HXP.screen.scaleY = Std.int(Math.max(1, HXP.screen.scaleY));
        }
    }
}