Particle2D

package scripts;

/**
 * ...
 * @author SadiQ
 */

import com.stencyl.Engine;
import com.stencyl.graphics.BitmapWrapper;
import com.stencyl.utils.Utils;
import openfl.display.Bitmap;
import openfl.display.BitmapData;
import openfl.display.Shape;
import openfl.filters.BitmapFilter;
import openfl.filters.BlurFilter;
import openfl.geom.Matrix;
import openfl.geom.Point;
import scripts.Particle2D;
import com.stencyl.graphics.G;
import com.stencyl.behavior.Script;
import com.stencyl.behavior.Script.*;

class Particle2D
{
    public var x:Float;
    public var y:Float;
    public var vx:Float;
    public var vy:Float;
    public var color:Int;
    public var radius:Int;
    public var alpha:Float;

    var bd:BitmapData;
    var shape:Shape;
    var bw:BitmapWrapper;
    var splashGravity:Float;

    public function new(x:Float = 0, y:Float = 0, vx:Float = 0, vy:Float = 0, color:Int = 0, radius:Int = 5, alpha:Float = 0.5, splashGravity:Float = 0.6)
    {
        this.splashGravity = splashGravity;
        this.x = x;
        this.y = y;
        this.vx = vx;
        this.vy = vy;
        this.color = color;
        this.radius = radius;
        this.alpha = alpha;

        var width = this.radius*2;
        bd = new BitmapData(width, width,true, 0);
        var matrix:Matrix = new Matrix();

        shape = new Shape();
        shape.graphics.beginFill(this.color, this.alpha);
            shape.graphics.drawCircle(this.radius, this.radius, this.radius / 2);
            shape.graphics.endFill();
        bd.draw(shape);
        bw = new BitmapWrapper(new Bitmap(this.bd));
        attachImageToHUD(bw, Std.int(this.x), Std.int(this.y));
        trace (alpha);
    }

    public function update()
    {
        vy += splashGravity;
        vx *= 0.99;
        vy *= 0.99;
        x += vx;
        y += vy;
        bw.x = x;
        bw.y = y;
    }

    public function dispose()
    {
        removeImage(bw);
        bd = null;
        shape = null;
        bw = null;
    }
}