package;

import luxe.Draw;
import luxe.Input;
import luxe.Sprite;
import luxe.Color;
import luxe.Vector;
import phoenix.Shader;
import phoenix.Texture;
import snow.utils.UInt8Array;

class Main extends luxe.Game
{
    var block:Sprite;

    var threshholds:Array<Float> = [0, 255 * 0.2, 255 * 0.3, 255 * 0.5, 255 * 0.8, 255 * 0.9, 255];

    override function ready() {

        genTex();

        block = new Sprite( {
            name: 'a sprite',
            pos: Luxe.screen.mid,
            texture: Luxe.resources.find_texture("perlin")
        });
    }

    function genTex()
    {
        trace("genTex");
        var _2darray:Array<Array<Int>> = PerlinNoise.makePerlinNoise(256, 128, 0, 0, 0, Std.int(Math.random() * 2000000));

        for (i in 0...128)
        {
            var newA = new Array<Int>();
            for (ii in 0...256)
            {
                newA[ii] = _2darray[i][ii];
            }
            _2darray[i] = newA;
            for (x in 0...newA.length)
            {
                var cur = newA[x];
                var col = -(new Color().rgb(cur).r) * 255;

                for (t in 0...threshholds.length-1)
                {
                    if (col < threshholds[t+1])
                    {
                        newA[x] = Std.int(threshholds[t]);
                        break;
                    }
                }
            }
        }
        var pixels = Util.array2dToUInt8Array(_2darray);

        Texture.load_from_pixels("perlin", 256, 128, pixels);
    }

    override function onkeyup(e:KeyEvent) {
        if(e.keycode == Key.escape)
            Luxe.shutdown();

        if (e.keycode == Key.key_r)
        {
            genTex();
            block.texture = Luxe.resources.find_texture("perlin");
        }
    }
}