Layer.getalpha

Layer.getalpha(layername:String):Float;

Get the alpha of a layer. Default is 1.0.

• layername: The name of the layer to check.

Example:

import haxegon.*;

class Main{
  function init(){
    Layer.create("foreground");
    Layer.attach("foreground");

    //Set the alpha of the "foreground" layer to 0.5.
    Layer.alpha("foreground", 0.5);
    	
    Layer.drawto("foreground");
    for (i in 0 ... 200){
      //Draw 200 random circles on the "foreground" layer
      Gfx.fillcircle(Random.int(0, Gfx.screenwidth), Random.int(0, Gfx.screenheight), Random.int(50, 80), Col.hsl(Random.int(0, 360), 0.5, 0.5));
    }
    Gfx.drawtoscreen();
  }

  function update(){
    //Press LEFT and RIGHT to change the alpha of the "foreground" layer
    var currentalpha:Float = Layer.getalpha("foreground");
    	
    if (Input.pressed(Key.LEFT)){
      Layer.alpha("foreground", Geom.clamp(currentalpha - 0.05, 0, 1));
    }else if (Input.pressed(Key.RIGHT)){
      Layer.alpha("foreground", Geom.clamp(currentalpha + 0.05, 0, 1));
    }
  }
}