Added messed up low performance camera rotation

OpenWindow/main.cpp

@@ -3,15 +3,18 @@
 #include "renderer.h"
 #include "ctime"
 
-const int width = 800;
-const int height = 800;
+const int screen_width = 1000;
+const int screen_height = 1000;
+
+int prev_mouse_x = 0;
+int prev_mouse_y = 0;
 
 int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
 {
    HWND                hwnd;
    MSG                 Msg;
 
-   hwnd = create_window(width, height, hInstance);
+   hwnd = create_window(hInstance);
    ShowWindow(hwnd, nCmdShow);
 
    char debug_str[100];
@@ -36,6 +39,30 @@ LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
 {
 	switch (message)
 	{
+	case WM_MOUSEMOVE:
+		int xPos, yPos;
+			xPos = LOWORD(lParam);
+			yPos = HIWORD(lParam);
+
+		if (xPos == prev_mouse_x)
+			break;
+		else if (xPos > prev_mouse_x)
+			move_camera_right();
+		else
+			move_camera_left();
+		prev_mouse_x = xPos;
+
+		if (yPos == prev_mouse_y)
+			break;
+		else if (yPos > prev_mouse_y)
+			move_camera_up();
+		else
+			move_camera_down();
+		prev_mouse_y = yPos;
+
+		render();
+		Update();
+		break;
 	case WM_RBUTTONDOWN:
 		break;
 	case WM_LBUTTONDOWN: