added addRectangle2D method to Mesh

src/mesh.cpp

@@ -225,6 +225,30 @@ unsigned int Mesh::getFlags()
     return flags;
 }
 
+void Mesh::addRectangle2D(const glm::vec2 &pos, const glm::vec2 &dim, const glm::vec2 &texCoord, const glm::vec2 &texRange, bool indexed)
+{
+    if(indexed)
+    {
+        addVertex(pos,                     texCoord);
+        addVertex(pos+glm::vec2(dim.x, 0), texCoord+glm::vec2(texRange.x, 0));
+        addVertex(pos+dim,                 texCoord+texRange);
+        addVertex(pos+glm::vec2(0, dim.y), texCoord+glm::vec2(0, texRange.y));
+        
+        addTriangle(0, 1, 2);
+        addTriangle(2, 3, 0);
+    }
+    else
+    {
+        addVertex(pos,                     texCoord);
+        addVertex(pos+glm::vec2(dim.x, 0), texCoord+glm::vec2(texRange.x, 0));
+        addVertex(pos+dim,                 texCoord+texRange);
+        
+        addVertex(pos+dim,                 texCoord+texRange);
+        addVertex(pos+glm::vec2(0, dim.y), texCoord+glm::vec2(0, texRange.y));
+        addVertex(pos,                     texCoord);
+    }
+}
+
 struct VertexComparator
 {
     // c'est plutot crade mais j'ai pas trouve d'autre moyen pour le moment

src/mesh.h

@@ -126,7 +126,10 @@ public:
     void addVertex(const glm::vec2 &position, const glm::vec2 &texCoord) {addVertex(position); addTexCoord(texCoord);}
     void addVertex(const glm::vec3 &position, const glm::vec3 &normal) {addVertex(position); addNormal(normal);}
     void addVertex(const glm::vec3 &position, const glm::vec3 &normal, const glm::vec2 &texCoord) {addVertex(position, normal); addTexCoord(texCoord);}
-
+    void addRectangle2D(const glm::vec2 &pos, const glm::vec2 &dim, const glm::vec2 &texCoord, const glm::vec2 &texRange, bool indexed = false);
+    void addRectangle2D(const glm::vec2 &pos, const glm::vec2 &dim, bool indexed = false) {addRectangle2D(pos, dim, glm::vec2(0), glm::vec2(1), indexed);}
+    void addRectangle2D(float x, float y, float width, float height, bool indexed = false) {addRectangle2D(glm::vec2(x, y), glm::vec2(width, height), indexed);}
+    
     // add indices
     void addTriangle(int i1, int i2, int i3) {indices.push_back(i1), indices.push_back(i2), indices.push_back(i3);}
     void addLine(int i1, int i2) {indices.push_back(i1), indices.push_back(i2);}