From 031877a83abc6989e599d42950946a255281c715 Mon Sep 17 00:00:00 2001
From: Peter Schaefer <schaeferpm@gmail.com>
Date: Thu, 25 Jun 2015 21:21:47 +0200
Subject: [PATCH] added switch for Transparency -> F9

---
 Weave/Events.cpp          | 10 +++++++---
 Weave/Graphix/Graphix.cpp | 16 ++++++++++++++++
 Weave/Graphix/Graphix.h   |  3 +++
 3 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/Weave/Events.cpp b/Weave/Events.cpp
index e763a11..d156113 100644
--- a/Weave/Events.cpp
+++ b/Weave/Events.cpp
@@ -122,13 +122,17 @@ void Events::KeyDown(int _key)
 		break;
 	case SDLK_F9:
 		//TRANSPARENCY
+		if (!key_toggle[SDLK_F9])
+			Graphix::disableEffects(EF_TRANSPARENCY);
+		else
+			Graphix::enableEffects(EF_TRANSPARENCY);
 		break;
 	case SDLK_F10:
 		//??? FullScreen
-		if (key_toggle[SDLK_F10])
-			Graphix::FullScreen(false,true);
-		else
+		if (!key_toggle[SDLK_F10])
 			Graphix::FullScreen(true,true);
+		else
+			Graphix::FullScreen(false,true);
 		break;
 	case SDLK_SPACE:
 		jump++;
diff --git a/Weave/Graphix/Graphix.cpp b/Weave/Graphix/Graphix.cpp
index 5f91b01..5f5d40a 100644
--- a/Weave/Graphix/Graphix.cpp
+++ b/Weave/Graphix/Graphix.cpp
@@ -34,12 +34,16 @@ unsigned int Graphix::getWindowWidth()
 void Graphix::enableEffects(Effects _eff)
 {
 	effects |=  _eff;
+
+	updateEffects();
 }
 
 
 void Graphix::disableEffects(Effects _eff)
 {
 	effects &= ~_eff;
+
+	updateEffects();
 }
 
 bool Graphix::testEffect(Effects _eff)
@@ -47,6 +51,18 @@ bool Graphix::testEffect(Effects _eff)
 	return effects & _eff;
 }
 
+void Graphix::updateEffects()
+{
+	//Transparency
+	if (effects & EF_TRANSPARENCY)
+	{
+		glEnable(GL_BLEND);
+		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+	}
+	else
+		glDisable(GL_BLEND);
+}
+
 void Graphix::init()
 {
 
diff --git a/Weave/Graphix/Graphix.h b/Weave/Graphix/Graphix.h
index 3d4d3cb..bde1f6a 100644
--- a/Weave/Graphix/Graphix.h
+++ b/Weave/Graphix/Graphix.h
@@ -45,6 +45,9 @@ public:
 	static Shader* shader_BBox;
 
 private:
+
+	static void updateEffects();
+
 	static unsigned int xpos, ypos, width, height;
 	static unsigned int  width_bkp, height_bkp;
 
-- 
2.47.3