From f6729592bf3fc8c530153dfbea1b9d33a7d82a27 Mon Sep 17 00:00:00 2001
From: Cameron Taylor <cameron.taylor.ninja@gmail.com>
Date: Fri, 27 Aug 2021 02:42:23 -0400
Subject: [PATCH] multiply shader in progres

---
 source/TitleState.hx                  |  7 +++-
 source/shaderslmfao/MultiplyShader.hx | 31 ++++++++++++++
 source/shaderslmfao/OverlayBlend.hx   | 60 +++++++++++++++++++++++++++
 3 files changed, 97 insertions(+), 1 deletion(-)
 create mode 100644 source/shaderslmfao/MultiplyShader.hx
 create mode 100644 source/shaderslmfao/OverlayBlend.hx

diff --git a/source/TitleState.hx b/source/TitleState.hx
index 49b8578dd..606ed3304 100644
--- a/source/TitleState.hx
+++ b/source/TitleState.hx
@@ -283,7 +283,6 @@ class TitleState extends MusicBeatState
 		outlineShaderShit = new TitleOutline();
 		// logoBl.shader = swagShader.shader;
 		// logoBl.shader = outlineShaderShit;
-		// logoBl.shader = alphaShader.shader;
 
 		// trace();
 		// logoBl.screenCenter();
@@ -296,6 +295,12 @@ class TitleState extends MusicBeatState
 		gfDance.antialiasing = true;
 		add(gfDance);
 
+		// alphaShader.shader.funnyShit.input = gfDance.pixels; // old shit
+
+		logoBl.shader = alphaShader.shader;
+
+		// trace(alphaShader.shader.glFragmentSource)
+
 		// gfDance.shader = swagShader.shader;
 
 		// gfDance.shader = new TitleOutline();
diff --git a/source/shaderslmfao/MultiplyShader.hx b/source/shaderslmfao/MultiplyShader.hx
new file mode 100644
index 000000000..e86820ba1
--- /dev/null
+++ b/source/shaderslmfao/MultiplyShader.hx
@@ -0,0 +1,31 @@
+package;
+
+import flixel.system.FlxAssets.FlxShader;
+
+class MultiplyShader extends FlxShader
+{
+	@:glFragmentSource('
+		#pragma header
+        uniform sampler2D funnyImage;
+		uniform vec4 uBlendColor;
+
+		vec4 blendMultiply(vec4 base, vec4 blend)
+		{
+			return base * blend;
+		}
+
+		vec4 blendMultiply(vec4 base, vec4 blend, float opacity)
+		{
+			return (blendMultiply(base, blend) * opacity + base * (1.0 - opacity));
+		}
+
+		void main()
+		{
+			vec4 base = texture2D(bitmap, openfl_TextureCoordv);
+			gl_FragColor = blendMultiply(base, uBlendColor, uBlendColor.a);
+		}')
+	public function new()
+	{
+		super();
+	}
+}
\ No newline at end of file
diff --git a/source/shaderslmfao/OverlayBlend.hx b/source/shaderslmfao/OverlayBlend.hx
new file mode 100644
index 000000000..1cf74a02e
--- /dev/null
+++ b/source/shaderslmfao/OverlayBlend.hx
@@ -0,0 +1,60 @@
+package shaderslmfao;
+
+import flixel.math.FlxPoint;
+import flixel.system.FlxAssets.FlxShader;
+
+class TitleOutline extends FlxShader
+{
+	// these r copypaste
+	public var funnyX(default, set):Float = 0;
+	public var funnyY(default, set):Float = 0;
+
+	function set_funnyX(x:Float):Float
+	{
+		xPos.value[0] = x;
+
+		return x;
+	}
+
+	function set_funnyY(y:Float):Float
+	{
+		yPos.value[0] = y;
+
+		return y;
+	}
+
+	@:glFragmentSource('
+        #pragma header
+
+        uniform float alphaShit;
+
+		uniform sampler2D funnyShit;
+
+
+		vec3 blendOverlay(vec3 base, vec3 blend)
+		{
+			return mix(1.0 - 2.0 * (1.0 - base) * (1.0 - blend), 2.0 * base * blend, step(base, vec3(0.5)));
+		}
+
+        void main()
+        {
+			vec2 funnyUv = openfl_TextureCoordv;
+            vec4 color = flixel_texture2D(bitmap, funnyUv);
+            
+			vec4 gf = flixel_texture2D(funnyShit, openfl_TextureCoordv);
+
+
+			vec3 mixedCol = blendOverlay(color.rgb, gf.rgb);
+
+            gl_FragColor = vec4(mixedCol, color.a);
+        }
+
+    ')
+	public function new()
+	{
+		super();
+
+		xPos.value = [0];
+		yPos.value = [0];
+	}
+}