add class for camera (just stub for now)

src/Camera.cpp

@@ -0,0 +1,20 @@
+#include "Camera.h"
+#include <GL/glew.h>
+
+Camera::Camera() {
+    glm::vec3 eye(0.0f, 0.0f, 4.0f), at(0.0f, 0.0f, 0.0f), up(0.0f, 1.0f, 0.0f);
+    _view = glm::lookAt(eye, at, up);
+    _projection = glm::perspective(45.0f, 1.0f, 2.0f, -2.0f);
+}
+
+Camera *Camera::instance() {
+    static Camera camera;
+    return &camera;
+}
+
+void Camera::storeUniformVars() {
+//    GLint view = glGetUniformLocation(program, "mView");
+//    glUniformMatrix4fv(view, 1, GL_FALSE, glm::value_ptr(mView));
+//    GLint projection = glGetUniformLocation(program, "mProjection");
+//    glUniformMatrix4fv(projection, 1, GL_FALSE, glm::value_ptr(mProjection));
+}

src/Camera.h

@@ -0,0 +1,23 @@
+#ifndef GLTEST_CAMERA_H
+#define GLTEST_CAMERA_H
+
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+
+class Camera {
+private:
+    glm::mat4 _view;
+    glm::mat4 _projection;
+
+private:
+    Camera();
+    Camera(Camera&) = delete;
+    void operator=(Camera&) = delete;
+    void storeUniformVars();
+
+public:
+    static Camera* instance();
+};
+
+
+#endif //GLTEST_CAMERA_H