From 070051b8759806873267cff46ceb2be7d6a3262f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Constantin=20Ri=C3=9F?= <constantin.riss@dre.de>
Date: Mon, 1 Mar 2010 23:30:40 +0100
Subject: initial commit

---
 Triangle.h | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 Triangle.h

(limited to 'Triangle.h')

diff --git a/Triangle.h b/Triangle.h
new file mode 100644
index 0000000..5e8a12c
--- /dev/null
+++ b/Triangle.h
@@ -0,0 +1,59 @@
+#ifndef _TRIANGLE_H_
+#define _TRIANGLE_H_
+
+#include "gl.h"
+#include <vmmlib/vector.hpp>
+#include <vmmlib/matrix.hpp>
+
+class Triangle
+{
+  public:
+    Triangle() : c(vmml::vec4f::ONE) {
+      v[0] = v[1] = v[2] = vmml::vec3f::ZERO;
+    }
+
+    Triangle(const vmml::vec3f &v1, const vmml::vec3f &v2, const vmml::vec3f &v3, const vmml::vec4f &c0) : c(c0)
+    {
+      v[0] = v1;
+      v[1] = v2;
+      v[2] = v3;
+    }
+    
+    const vmml::vec3f& getVertex(int i) const {return v[i];}
+    const vmml::vec4f& getColor() const {return c;}
+    
+    vmml::vec3f getNormal() const {
+      return v[0].compute_normal(v[1], v[2]);
+    }
+
+    void render() const {
+      glColor4fv(c.array);
+      glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, c.array);
+      glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, (c/2).array);
+      
+      glNormal3fv(getNormal().array);
+
+      for(int i = 0; i < 3; ++i)
+      {
+        glVertex3fv(v[i].array);
+      }
+    }
+    
+    void transform(const vmml::mat4f &m) {
+      for(int i = 0; i < 3; ++i)
+      {
+        v[i] = m*v[i];
+      }
+    }
+    
+    vmml::vec3f getCenter() const {
+      return (v[0]+v[1]+v[2])/3;
+    }
+
+  private:
+    vmml::vec3f v[3];
+    vmml::vec4f c;
+};
+
+#endif /*_TRIANGLE_H_*/
+
-- 
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