NCW Test

package ;
import ncw.Bitmap;
import ncw.Lib;
import ncw.Screen;

class Main {
    var scr:Screen;
    var img0:Bitmap;
    var img1:Bitmap;
    var pos:Float = 0;
    var spd:Float = 3;
    function onFrame() {
        // bouncing motion:
        pos += spd;
        if (pos > 200) { pos = 200; spd *= -1; }
        if (pos < -100) { pos = -100; spd *= -1; }
        // drawing:
        scr.bitmap.clear();
        // drawTo(image, x, y, rectX, rectY, rectWidth, rectHeight)
        scr.bitmap.drawTo(img0, 0 - pos, 0, 0, 0, 100, 480);
        scr.bitmap.drawTo(img1, 0 - pos, 0, 100, 0, 100, 480);
        scr.bitmap.drawTo(img0, 0 - pos, 0, 200, 0, 100, 480);
        scr.bitmap.drawTo(img1, 0 - pos, 0, 300, 0, 100, 480);
        // next frame:
        Lib.setTimeout(onFrame, 30);
    }
    function new() {
        scr = new Screen(new Bitmap(500, 438));
        scr.enable();
        var left = 2, onLoad = function(_) {
            if (--left == 0) onFrame();
        };
        img0 = Bitmap.load("img/0.png", onLoad);
        img1 = Bitmap.load("img/1.png", onLoad);
    }
    // entry point
    public static function main() { new Main(); }
}