void VVSHOW(R_3DPoint &p0, R_3DPoint &p1, R_3DPoint &p2,
R_3DPoint &p3, Port_3D &port, REAL_TYPE minz)
{
R_3DPoint ppoints[4];
R_3DPoint rclipped_points[16];
R_2DPoint screen_points[16];
R_2DPoint clipped_points[32];
int npoints;
int nxpoints;
int zclp = 0;
if (p0.z < minz)
zclp++;
if (p1.z < minz)
zclp++;
if (p2.z < minz)
zclp++;
if (p3.z < minz)
zclp++;
/* if at least one vertice in front */
if (zclp < 4)
{
/* need to zclip */
if (zclp > 0)
{
ppoints[0] = p0;
ppoints[1] = p1;
ppoints[2] = p2;
ppoints[3] = p3;
if (zpoly_clip(ppoints,4,rclipped_points,&npoints,minz))
{
MYCHECK(npoints < 16);
for (int i=0;i<npoints;i++)
port.port2screen(rclipped_points[i],&screen_points[i]);
if (r_poly_clip(screen_points,clipped_points,npoints,
&nxpoints,&port.screen))
{
nxpoints++;
clipped_points[nxpoints - 1] = clipped_points[0];
r_frame_convpoly(clipped_points,nxpoints);
}
}
}
else
{
port.port2screen(p0,&screen_points[0]);
port.port2screen(p1,&screen_points[1]);
port.port2screen(p2,&screen_points[2]);
port.port2screen(p3,&screen_points[3]);
if (r_poly_clip(screen_points,clipped_points,4,&npoints,
&port.screen))
{
npoints++;
clipped_points[npoints - 1] = clipped_points[0];
r_frame_convpoly(clipped_points,npoints);
}
}
}
}
int __cdecl Pilot::brdcst(int priority, int freq, char *mss, ...)
{
static char mssbuff[200];
va_list ap;
va_start(ap,mss);
vsprintf(mssbuff,mss,ap);
va_end(ap);
MYCHECK(strlen(mssbuff) <= 127);
return (broadcast(mssbuff,priority,freq));
}
int main(int argc, char **argv) {
// Warning here
while (0 && 4) {
}
// But no warning here, since 4 comes from a macro
while (MYCHECK(argc)) {
}
return 0;
}
/* Return true if face NOT visible */
inline int VVTEST(R_3DPoint &p0, R_3DPoint &p1, R_3DPoint &p2,
R_3DPoint &p3, Port_3D &port, REAL_TYPE minz)
{
R_3DPoint ppoints[4];
R_3DPoint rclipped_points[16];
R_2DPoint screen_points[16];
R_2DPoint clipped_points[32];
int npoints;
int nxpoints;
int result = 1;
int zclp = 0;
if (p0.z < minz)
zclp++;
if (p1.z < minz)
zclp++;
if (p2.z < minz)
zclp++;
if (p3.z < minz)
zclp++;
/* if at least one vertice in front */
if (zclp < 4)
{
/* need to zclip */
if (zclp > 0)
{
ppoints[0] = p0;
ppoints[1] = p1;
ppoints[2] = p2;
ppoints[3] = p3;
if (zpoly_clip(ppoints,4,rclipped_points,&npoints,minz))
{
MYCHECK(npoints < 16);
for (int i=0;i<npoints;i++)
port.port2screen(rclipped_points[i],&screen_points[i]);
if (r_poly_clip(screen_points,clipped_points,npoints,
&nxpoints,&port.screen))
result = 0;
}
}
else
{
port.port2screen(p0,&screen_points[0]);
port.port2screen(p1,&screen_points[1]);
port.port2screen(p2,&screen_points[2]);
port.port2screen(p3,&screen_points[3]);
if (r_poly_clip(screen_points,clipped_points,4,&npoints,
&port.screen))
result = 0;
}
}
return (result);
}
