Add some memory cleanup code.

src/engine/controller/controller.hh

@@ -17,6 +17,7 @@ class Controller {
 	virtual bool IsButtonPressed(Button button) { return 0; };
 	virtual float GetLeftJoystickXAxis() { return 0.0; };
 	virtual float GetLeftJoystickYAxis() { return 0.0; };
+	virtual ~Controller() {};
 
    protected:
 	virtual int GetButtonMask(Button button) { return 0; }

src/engine/engine.cc

@@ -34,6 +34,10 @@ bool Engine::ShouldWindowClose() {
 	return engine->ShouldWindowClose();
 }
 
+Engine::~Engine() {
+	delete engine;
+}
+
 void Engine::initScreen() {
 	glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
 	glViewport(0, 0, 640, 480);

src/engine/engine.hh

@@ -39,6 +39,8 @@ class Engine {
 	void initializeController();
 	void initializeEngine();
 	void initializeGameLoop();
+	void cleanupEngine();
+	virtual ~Engine();
 	struct Vector3 {
 		static Vector3 zero();
 		float x;

src/engine/linuxEngine.cc

@@ -1,3 +1,4 @@
+#include <GLFW/glfw3.h>
 #ifdef __linux__
 
 #include "linuxEngine.hh"
@@ -45,4 +46,11 @@ void LinuxEngine::SwapBuffers() {
 bool LinuxEngine::ShouldWindowClose() {
 	return glfwWindowShouldClose(this->window);
 }
+
+LinuxEngine::~LinuxEngine() {
+	delete controller;
+	glfwDestroyWindow(window);
+	glfwTerminate();
+	window = nullptr;
+}
 #endif

src/engine/linuxEngine.hh

@@ -1,7 +1,6 @@
 #ifndef LINUX_ENGINE_HH
 #define LINUX_ENGINE_HH
 #include "nativeEngine.hh"
-#include <epoxy/gl.h>
 #include <GLFW/glfw3.h>
 
 class LinuxEngine : public NativeEngine {
@@ -9,6 +8,7 @@ class LinuxEngine : public NativeEngine {
 	void initializeEngine() override;
 	void SwapBuffers() override;
 	bool ShouldWindowClose() override;
+	~LinuxEngine() override;
 	GLFWwindow* window = nullptr;
 };
 #endif

src/engine/nativeEngine.hh

@@ -7,6 +7,7 @@ class NativeEngine {
 	virtual void initializeEngine(){};
 	virtual void SwapBuffers(){};
 	virtual bool ShouldWindowClose(){return false;};
+	virtual ~NativeEngine() {};
 	Controller* controller = nullptr;
 };
 #endif

src/hello.cc

@@ -34,4 +34,5 @@ int main(int argc, char *argv[]) {
 	Hello* engine = new Hello;
 	engine->initializeEngine();
 	engine->initializeGameLoop();
+	delete engine;
 }