Can add models with multiple textures

core/Shaders/FlatShader.cpp

@@ -3,7 +3,3 @@
 #include "flat.frag.h"
 
 FlatShader::FlatShader() : Shader(flat_vert, flat_frag) {}
-
-void FlatShader::UpdateColor(Vector3 color) {
-  glUniform3f(glGetUniformLocation(id, "color"), color.r, color.g, color.b);
-}

core/Shaders/FlatShader.h

@@ -1,7 +1,12 @@
+#ifndef FLATSHADER_H
+#define FLATSHADER_H
+
 #include "Shader.h"
 
 class FlatShader : public Shader {
 public:
   FlatShader();
-  void UpdateColor(Vector3 color);
 };
+
+#endif /* FLATSHADER_H */
+