package;

import openfl.display.Sprite;
import openfl.Lib;

class Main extends Sprite {

    public function new() {
        super();

        function loadBitmapData( name:String, ut:Bool, tc:UInt ) {
            var bd = openfl.Assets.getBitmapData( name );
            var target = new openfl.display.BitmapData( bd.width, bd.height );
            if ( ut ) {
                for ( y in 0 ... bd.height ) {
                    for ( x in 0 ... bd.width ) {
                        var pix:UInt = bd.getPixel32( x, y );
                        if ( pix == tc ) {
                            target.setPixel32( x, y, 0 );
                        } else {
                            target.setPixel32( x, y, pix );
                        }
                    }
                }
                return target;
            } else {
                return bd;
            }
        }

        var bm = loadBitmapData( 'img/bigfont.png', true, 0xffff0080 )
        var ts = new openfl.display.Tilesheet( bm );
        var w = 18; var h = 21;
        for ( y in 0 ... Std.int( bm.height / h ) ) {
            for ( x in 0 ... Std.int( bm.width / w ) ) {
                ts.addTileRect( new openfl.geom.Rectangle( x * w, y * h, w, h ) );
            }
        }

        inline function mergeBData( first:openfl.display.BitmapData, second:openfl.display.BitmapData ) {
            first.copyPixels( second, new openfl.geom.Rectangle( 0, 0, second.width, second.height ), new openfl.geom.Point( 0, 0 ), second );
        }

        var back = loadBitmapData( 'img/back.png', false, 0 );

        mergeBData( back, loadBitmapData( 'img/dt.png', true, 0xffff0080 ) );

        function drawText( g, text ) {
            var x = 10, y = 10;
            var r:Array<Float> = [];
            for ( i in 0 ... text.length ) {
                x += w;
                r.push( x );
                r.push( y );
                r.push( text.charCodeAt( i ) );
            }

            ts.drawTiles( g, r );
        }

        stage.addEventListener( openfl.events.Event.ENTER_FRAME, function ( e:openfl.events.Event ) {
            graphics.beginFill( 0xff44aaff );
            graphics.drawRect( 0, 0, stage.stageWidth, stage.stageHeight );
            graphics.endFill();

            graphics.beginBitmapFill( back );
            graphics.drawRect( 0, 0, stage.stageWidth, stage.stageHeight );
            graphics.endFill();
            drawText( graphics, "Hello world! 123455677890 !@#$%^&*()" );
        } );
    }

}