void numcb(int *N)
{
switch(*N) { /* Set the render mode */
case 1 : ss2srm(WIREFRAME); break;
case 2 : ss2srm(SHADE_FLAT); break;
case 3 : ss2srm(SHADE_DIFFUSE); break;
case 4 : ss2srm(SHADE_SPECULAR); break;
default : return;
}
cs2tcb(); /* Turn the callback back on */
}
void cb(double *t, int *kc)
{
float x, y, z; /* Position */
float r, g, b; /* Colour */
float radius = 0.3; /* Radius */
x = 0.0; y = 0.0; z = 0.0;
r = 1.0; g = 1.0; b = 1.0; /* Yellow */
ns2sphere(x,y,z, radius, r,g,b); /* Draw the sphere */
cs2tcb(); /* Temporarily turn-off callback */
}
void ncb(int *N)
/* Callback for pressing number keys */
{
if (*N > 5) return; /* Do nothing! */
switch (*N) {
case 1 : cs2dcb(); /* Turn off callback */
break;
case 2 : cs2ecb(); /* Turn on callback */
break;
case 3 : colour = 3; /* Change the colour that alternates */
break;
case 4 : colour = 5; /* Change the colour that alternates */
break;
case 5 : cs2tcb(); /* Toggle callback on/off */
break;
}
}