From 832fb1872e6e5e664e2e5130122fd2f74729ed42 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 17 Oct 2007 13:53:28 +0000
Subject: [PATCH] Add Lights

---
 source/light.cpp | 63 ++++++++++++++++++++++++++++++++++++++++++++++++
 source/light.h   | 45 ++++++++++++++++++++++++++++++++++
 2 files changed, 108 insertions(+)
 create mode 100644 source/light.cpp
 create mode 100644 source/light.h

diff --git a/source/light.cpp b/source/light.cpp
new file mode 100644
index 00000000..1570c5cd
--- /dev/null
+++ b/source/light.cpp
@@ -0,0 +1,63 @@
+/* $Id$
+
+This file is part of libmspgl
+Copyright © 2007  Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
+#include "light.h"
+
+namespace Msp {
+namespace GL {
+
+Light::Light():
+	ambient(0),
+	diffuse(1),
+	specular(1),
+	x(0), y(0), z(1), w(0),
+	sdx(0), sdy(0), sdz(-1),
+	spot_exp(0),
+	spot_cutoff(180)
+{ }
+
+void Light::set_ambient(const Color &c)
+{
+	ambient=c;
+}
+
+void Light::set_diffuse(const Color &c)
+{
+	diffuse=c;
+}
+
+void Light::set_specular(const Color &c)
+{
+	specular=c;
+}
+
+void Light::set_position(float x_, float y_, float z_, float w_)
+{
+	x=x_;
+	y=y_;
+	z=z_;
+	w=w_;
+}
+
+void Light::apply()
+{
+	apply_to(current);
+}
+
+void Light::apply_to(unsigned l)
+{
+	l+=GL_LIGHT0;
+	glLightfv(l, GL_AMBIENT, &ambient.r);
+	glLightfv(l, GL_DIFFUSE, &diffuse.r);
+	glLightfv(l, GL_SPECULAR, &specular.r);
+	glLightfv(l, GL_POSITION, &x);
+}
+
+unsigned Light::current=0;
+
+} // namespace GL
+} // namespace Msp
diff --git a/source/light.h b/source/light.h
new file mode 100644
index 00000000..cbf95add
--- /dev/null
+++ b/source/light.h
@@ -0,0 +1,45 @@
+/* $Id$
+
+This file is part of libmspgl
+Copyright © 2007  Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
+#ifndef MSP_GL_LIGHT_H_
+#define MSP_GL_LIGHT_H_
+
+#include "color.h"
+
+namespace Msp {
+namespace GL {
+
+class Light
+{
+private:
+	Color ambient;
+	Color diffuse;
+	Color specular;
+	float x, y, z, w;
+	float sdx, sdy, sdz;
+	float spot_exp;
+	float spot_cutoff;
+	float attenuation[3];
+
+	static unsigned current;
+
+public:
+	Light();
+	void set_ambient(const Color &c);
+	void set_diffuse(const Color &c);
+	void set_specular(const Color &c);
+	void set_position(float, float, float, float);
+	void apply();
+	void apply_to(unsigned);
+
+	static void activate(unsigned);
+};
+
+} // namespace GL
+} // namespace Msp
+
+#endif
-- 
2.45.2