static float cam_theta, cam_phi;
static float cam_height = 1.65;
static float cam_theta, cam_phi;
static float cam_height = 1.65;
static bool bnstate[16];
static int prev_x, prev_y;
bool app_init(int argc, char **argv)
{
static bool bnstate[16];
static int prev_x, prev_y;
bool app_init(int argc, char **argv)
{