void glutMouse(int button,int state,int x,int y)
{
	if (state == GLUT_UP)
			g_mouseActive = false;
	

	if (state == GLUT_DOWN)
	{
		g_oldMouseX = g_currentMouseX = x;
		g_oldMouseY = g_currentMouseY = y;
    g_mouseActive = true;

	}
}

void glutMouseMotion(int x,int y)
{
  g_currentMouseX = x;
  g_currentMouseY = y;

  g_xRotation -= (g_currentMouseX - g_oldMouseX);
  g_yRotation -= (g_currentMouseY - g_oldMouseY);

  g_oldMouseX = g_currentMouseX;
  g_oldMouseY = g_currentMouseY;
}