additional cleanup and preperations

src/Engine/main.cpp

@@ -61,6 +61,10 @@ void ProcessInput(GLFWwindow* window)
 		cam.ProcessKeyboard(MovementDirection::LEFT, deltaTime);
 	if(glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS)
 		cam.ProcessKeyboard(MovementDirection::RIGHT, deltaTime);
+	if(glfwGetKey(window, GLFW_KEY_SPACE) == GLFW_PRESS)
+		cam.ProcessKeyboard(MovementDirection::UP, deltaTime);
+	if(glfwGetKey(window, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS || glfwGetKey(window, GLFW_KEY_RIGHT_SHIFT) == GLFW_PRESS)
+		cam.ProcessKeyboard(MovementDirection::DOWN, deltaTime);
 }
 
 void OnMouseMove(GLFWwindow* window, double xpos, double ypos)
@@ -142,28 +146,6 @@ int main()
 		vec3(-1.3f,  1.0f, -1.5f)
 	};
 
-	// VBO == all vertices; EBO == connection of vertices (faces) and is optional, although it is a bit more efficient than using VBOs, since it reuses vertices;
-	// VAO == collection of VBOs/EBOs used for rendering
-	GLuint vertexBufferObject, elementBufferObject, vertexArrayObject;
-	glGenVertexArrays(1, &vertexArrayObject);
-	glGenBuffers(1, &vertexBufferObject);
-	glGenBuffers(1, &elementBufferObject);
-
-	glBindVertexArray(vertexArrayObject);
-
-	glBindBuffer(GL_ARRAY_BUFFER, vertexBufferObject);
-	glBufferData(GL_ARRAY_BUFFER, sizeof(vertices_container), vertices_container, GL_STATIC_DRAW);
-
-	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, elementBufferObject);
-	glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(faces), faces, GL_STATIC_DRAW);
-
-	// position attribute
-	glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)0);
-	glEnableVertexAttribArray(0);
-	// uv-coordinates (or more general the second vertex attribute which can be anything not just uv-coordinates)
-	glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)(3 * sizeof(float)));
-	glEnableVertexAttribArray(1);
-	// I could unbind the VAO, but this is usually not needed because when creating a new VAO we need to bind that to change it anyway, so there shouldn't be a problem
 
 	std::string vertexPath = "shaders/default/default.vert";
 	std::string fragmentPath = "shaders/default/default.frag";
@@ -211,10 +193,6 @@ int main()
 		glfwPollEvents();
 	}
 
-	// optional, as we are at the end of the program.
-	glDeleteVertexArrays(1, &vertexArrayObject);
-	glDeleteBuffers(1, &elementBufferObject);
-
 	glfwTerminate();
 	return 0;
 }

src/Engine/object/game_object.h

@@ -51,6 +51,11 @@ namespace Nebulix
 		{
 			Init();
 		}
+		~GameObject()
+		{
+			glDeleteVertexArrays(1, &vertexArray);
+			glDeleteBuffers(1, &vertexBuffer);
+		}
 
 		// NOTE: This method will only call "Shader.Use()" but will not set any properties.
 		// This is because I do not know the names and values of the properties. Most likely this will be possible after learning about materials
@@ -75,6 +80,9 @@ namespace Nebulix
 	private:
 		std::vector<float> vertices;
 
+		// VBO == all vertices (Vertex Buffer Object)
+		// EBO == connection of vertices (faces) and is optional, although it is a bit more efficient than using VBOs, since it reuses vertices; (Element Buffer Object)
+		// VAO == collection of VBOs/EBOs used for rendering (Vertex Array Object)
 		GLuint vertexBuffer, vertexArray;
 		std::vector<VertexAttribute> vertexAttributes;
 

src/Engine/util/camera/camera.h

@@ -10,7 +10,9 @@ enum class MovementDirection
 	FORWARD,
 	BACKWARD,
 	LEFT,
-	RIGHT
+	RIGHT,
+	UP,
+	DOWN
 };
 
 // Default values
@@ -59,6 +61,10 @@ public:
 			Position -= Right * velocity;
 		if (direction == MovementDirection::RIGHT)
 			Position += Right * velocity;
+		if (direction == MovementDirection::UP)
+			Position += Up * velocity;
+		if (direction == MovementDirection::DOWN)
+			Position -= Up * velocity;
 	}
 
 	// processes input received from a mouse input system. Expects the offset value in both the x and y direction.