Removed unused shaders and made small code change

Author: stringfromjava

assets/shaders/vcrborder.frag

@@ -110,13 +110,6 @@ class InitState extends FlxState
     });
     #end
 
-    // Assign the shaders AFTER all assets have been loaded!
-    #if ADVANCED_SHADERS_ALLOWED
-    CacheUtil.vcrBorderShader = new VCRBorderShader();
-    CacheUtil.vcrMario85Shader = new VCRMario85Shader();
-    #end
-    CacheUtil.grainShader = new GrainShader();
-
     // Configure the event listener for detecting caps lock if the target is set to HTML5.
     #if web
     untyped __js__('
@@ -130,18 +123,7 @@ class InitState extends FlxState
     #end
   }
 
-  function addBackgroundProcesses():Void
-  {
-    LoggerUtil.log('Adding background processes');
-    // Update the shaders that need to constantly be reset.
-    FlxG.signals.postUpdate.add(() ->
-    {
-      #if ADVANCED_SHADERS_ALLOWED
-      CacheUtil.vcrMario85Shader.update(FlxG.elapsed);
-      #end
-      CacheUtil.grainShader.update(FlxG.elapsed);
-    });
-  }
+  function addBackgroundProcesses():Void {}
 
   function addEventListeners():Void
   {

assets/shaders/vcrmario85.frag

@@ -1,7 +1,6 @@
 package starcore.backend.util;
 
 import starcore.entity.Entity;
-import starcore.shaders.*;
 
 /**
  * Class that holds general, temporary data for pretty much anything.
@@ -40,20 +39,5 @@ final class CacheUtil
    */
   public static var registeredEntities:Array<Entity> = [];
 
-  /**
-   * VCR border shader for Starcore.
-   */
-  public static var vcrBorderShader:VCRBorderShader;
-
-  /**
-   * VCR Mario 85 shader for Starcore.
-   */
-  public static var vcrMario85Shader:VCRMario85Shader;
-
-  /**
-   * Grain shader for Starcore.
-   */
-  public static var grainShader:GrainShader;
-
   function new() {}
 }

source/InitState.hx

@@ -180,7 +180,7 @@ final class FlixelUtil
       case FAST:
         currentShadersApplied = [new GrainShader(), new Hq2xShader(), new TiltshiftShader(), new ScanlineShader()];
       case MINIMAL:
-        FlxG.game.setFilters([new ShaderFilter(CacheUtil.grainShader), new ShaderFilter(new Hq2xShader())]);
+        currentShadersApplied = [new GrainShader(), new Hq2xShader()];
       case NONE:
         currentShadersApplied = [];
       default:

source/starcore/backend/util/CacheUtil.hx

@@ -5,6 +5,9 @@ import openfl.Assets;
 import starcore.backend.util.PathUtil;
 import starcore.shaders.bases.UpdatedShader;
 
+/**
+ * Adds a bending scanline effect to the screen, simulating old VCR playback.
+ */
 class VCRLinesShader extends UpdatedShader
 {
   public function new()