Allow triangle class to draw multiple gl triangles

examples/dev_testing/src/main.cpp

@@ -46,24 +46,20 @@ int main(int argc, char *argv[]) {
         glm::vec3(0.5f, -0.5f, 0.f),
         glm::vec3(0.f, 0.5f, 0.f),
     }; */
-    /* std::vector<glm::vec3> vertices = {
+    std::vector<glm::vec3> vertices = {
         glm::vec3(0.5f,  0.5f, 0.0f),
         glm::vec3(0.5f, -0.5f, 0.0f),
         glm::vec3(-0.5f,  0.5f, 0.0f),
+
+        glm::vec3(0.5f, -0.5f, 0.0f),
+        glm::vec3(-0.5f, -0.5f, 0.0f),
+        glm::vec3(-0.5f,  0.5f, 0.0f),
     };
 
     std::shared_ptr<simpleengine::Event> tri(new simpleengine::shapes_2d::Triangle(base_shader_program, vertices));
-    game.add_event(tri); */
+    game.add_event(tri);
 
-    /* 0.5f,  0.5f, 0.0f,  // top right
-     0.5f, -0.5f, 0.0f,  // bottom right
-    -0.5f,  0.5f, 0.0f,  // top left 
-    // second triangle
-     0.5f, -0.5f, 0.0f,  // bottom right
-    -0.5f, -0.5f, 0.0f,  // bottom left
-    -0.5f,  0.5f, 0.0f */
-
-    std::vector<glm::vec3> vertices = {
+    /* std::vector<glm::vec3> vertices = {
         glm::vec3(0.5f, 0.5f, 0.f), // top right
         glm::vec3(0.5f, -0.5f, 0.f), // bottom right
         glm::vec3(-0.5f, -0.5f, 0.f), // bottom left
@@ -76,7 +72,7 @@ int main(int argc, char *argv[]) {
     };
 
     std::shared_ptr<simpleengine::Event> square(new simpleengine::shapes_2d::Square(base_shader_program, vertices, indicies));
-    game.add_event(square);
+    game.add_event(square); */
 
     return game.run();
 }

include/simpleengine/shapes/2d/triangle.h

@@ -39,7 +39,7 @@ namespace simpleengine::shapes_2d {
 
             vao.bind();
             vbo.buffer(vertices.data(), 0, vertices.size() * sizeof(float) * 3); // 3 floats are in each "row" of the vector.
-            vao.enable_attrib(vbo, 0, vertices.size(), GL_FLOAT, 3 * sizeof(float), 0);
+            vao.enable_attrib(vbo, 0, 3, GL_FLOAT, 3 * sizeof(float), 0);
         }
 
         virtual ~Triangle() = default;
@@ -52,7 +52,7 @@ namespace simpleengine::shapes_2d {
             glUseProgram(*shader_program);
 
             vao.bind();
-            glDrawArrays(GL_TRIANGLES, 0, 3);
+            glDrawArrays(GL_TRIANGLES, 0, vertices.size());
         }
     };
 }