1 files changed, 105 insertions, 0 deletions
diff --git a/src/Triangle.h b/src/Triangle.h
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+++ b/src/Triangle.h
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+/*
+ * Triangle.h
+ *
+ * Copyright (C) 2009 Matthias Schiffer <matthias@gamezock.de>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef ZOOM_TRIANGLE_H_
+#define ZOOM_TRIANGLE_H_
+
+#include <vmmlib/vector.hpp>
+#include <vmmlib/matrix.hpp>
+
+namespace Zoom {
+
+class Triangle {
+  public:
+    Triangle() : color(vmml::vec4f::ONE), texture(0) {
+      vertices[0] = vertices[1] = vertices[2] = vmml::vec3f::ZERO;
+      normals[0] = normals[1] = normals[2] = vmml::vec3f::ZERO;
+      texcoords[0] = texcoords[1] = texcoords[2] = vmml::vec2f::ZERO;
+    }
+
+    Triangle(const vmml::vec3f &v1, const vmml::vec3f &v2, const vmml::vec3f &v3, const vmml::vec4f &color0) : color(color0), texture(0) {
+      vertices[0] = v1;
+      vertices[1] = v2;
+      vertices[2] = v3;
+
+      normals[0] = normals[1] = normals[2] = vmml::vec3f::ZERO;
+      texcoords[0] = texcoords[1] = texcoords[2] = vmml::vec2f::ZERO;
+    }
+    
+    const vmml::vec3f& getVertex(int i) const {return vertices[i];}
+    vmml::vec3f& getVertex(int i) {return vertices[i];}
+    void setVertex(int i, vmml::vec3f v) {
+      vertices[i] = v;
+    }
+
+    const vmml::vec3f& getNormal(int i) const {return normals[i];}
+    vmml::vec3f& getNormal(int i) {return normals[i];}
+    void setNormal(int i, vmml::vec3f n) {
+      normals[i] = n;
+    }
+
+    const vmml::vec2f& getTexCoords(int i) const {return texcoords[i];}
+    vmml::vec2f& getTexCoords(int i) {return texcoords[i];}
+    void setTexCoords(int i, vmml::vec2f t) {
+      texcoords[i] = t;
+    }
+
+    unsigned getTexture() const {
+      return texture;
+    }
+    void setTexture(unsigned tex) {
+      texture = tex;
+    }
+
+    const vmml::vec4f& getColor() const {return color;}
+    vmml::vec4f& getColor() {return color;}
+    void setColor(vmml::vec4f c) {
+      color = c;
+    }
+    
+    vmml::vec3f computeNormal() const {
+      return vertices[0].compute_normal(vertices[1], vertices[2]);
+    }
+    
+    bool isDegenerate() const {
+      return (computeNormal().squared_length() == 0);
+    }
+
+    void transform(const vmml::mat4f &matrix) {
+      for(int i = 0; i < 3; ++i) {
+        vertices[i] = matrix*vertices[i];
+      }
+    }
+    
+    vmml::vec3f getCenter() const {
+      return (vertices[0]+vertices[1]+vertices[2])/3;
+    }
+
+  private:
+    vmml::vec3f vertices[3];
+    vmml::vec3f normals[3];
+    vmml::vec2f texcoords[3];
+    vmml::vec4f color;
+    unsigned texture;
+};
+
+}
+
+#endif /*ZOOM_TRIANGLE_H_*/
+