103 lines
2.8 KiB
C++
103 lines
2.8 KiB
C++
/***
|
|
*
|
|
* Copyright (c) 2016-2019 Marco 'eukara' Hladik. All rights reserved.
|
|
*
|
|
* See the file LICENSE attached with the sources for usage details.
|
|
*
|
|
****/
|
|
|
|
/* We need to save trace infos temporarily in order to figure out what to
|
|
* project the decal against. Half-Life's infodecal entity only stores origin,
|
|
* but not angles. So we have to figure them out ourselves. */
|
|
typedef struct {
|
|
float fraction;
|
|
vector normal;
|
|
vector endpos;
|
|
} traced_t;
|
|
|
|
float infodecal_send(entity pvsent, float cflags)
|
|
{
|
|
WriteByte(MSG_ENTITY, ENT_DECAL);
|
|
WriteCoord(MSG_ENTITY, self.origin[0]);
|
|
WriteCoord(MSG_ENTITY, self.origin[1]);
|
|
WriteCoord(MSG_ENTITY, self.origin[2]);
|
|
WriteCoord(MSG_ENTITY, self.angles[0]);
|
|
WriteCoord(MSG_ENTITY, self.angles[1]);
|
|
WriteCoord(MSG_ENTITY, self.angles[2]);
|
|
/* Figure this thing out */
|
|
WriteByte(MSG_ENTITY, 255);
|
|
WriteByte(MSG_ENTITY, 0);
|
|
WriteByte(MSG_ENTITY, 0);
|
|
WriteString(MSG_ENTITY, self.texture );
|
|
return TRUE;
|
|
}
|
|
|
|
void infodecal(void)
|
|
{
|
|
traced_t tmp[6];
|
|
int i = 0;
|
|
int b = 0;
|
|
float frac = 1.0f;
|
|
vector vpos = self.origin;
|
|
|
|
if (serverkeyfloat("*bspversion") != 30) {
|
|
self.texture = sprintf( "materials/%s", self.texture );
|
|
}
|
|
|
|
if (!self.texture) {
|
|
remove(self);
|
|
return;
|
|
}
|
|
|
|
/* Unrolled because I'm lazy */
|
|
makevectors([0, 0, 0]);
|
|
traceline(vpos + (v_forward * -1), vpos + (v_forward * 128), 1, self);
|
|
tmp[0].fraction = trace_fraction;
|
|
tmp[0].normal = trace_plane_normal;
|
|
tmp[0].endpos = trace_endpos;
|
|
traceline(vpos + (v_forward * 1), vpos + (v_forward * -128), 1, self);
|
|
tmp[1].fraction = trace_fraction;
|
|
tmp[1].normal = trace_plane_normal;
|
|
tmp[1].endpos = trace_endpos;
|
|
traceline(vpos + (v_right * -1), vpos + (v_right * 128), 1, self);
|
|
tmp[2].fraction = trace_fraction;
|
|
tmp[2].normal = trace_plane_normal;
|
|
tmp[2].endpos = trace_endpos;
|
|
traceline(vpos + (v_right * 1), vpos + (v_right * -128), 1, self);
|
|
tmp[3].fraction = trace_fraction;
|
|
tmp[3].normal = trace_plane_normal;
|
|
tmp[3].endpos = trace_endpos;
|
|
traceline(vpos + (v_up * -1), vpos + (v_up * 128), 1, self);
|
|
tmp[4].fraction = trace_fraction;
|
|
tmp[4].normal = trace_plane_normal;
|
|
tmp[4].endpos = trace_endpos;
|
|
traceline(vpos + (v_up * 1), vpos + (v_up * -128), 1, self);
|
|
tmp[5].fraction = trace_fraction;
|
|
tmp[5].normal = trace_plane_normal;
|
|
tmp[5].endpos = trace_endpos;
|
|
|
|
for (i = 0; i < 6; i++) {
|
|
if ( tmp[i].fraction < frac ) {
|
|
frac = tmp[i].fraction;
|
|
b = i;
|
|
}
|
|
}
|
|
|
|
if (frac == 1.0f) {
|
|
objerror(sprintf("infodecal tracing failed at %v\n", self.origin));
|
|
return;
|
|
}
|
|
|
|
makevectors(vectoangles(tmp[b].endpos - self.origin ));
|
|
vector cpl = v_forward - (v_forward * tmp[b].normal) * tmp[b].normal;
|
|
|
|
if (tmp[b].normal[2] == 0) {
|
|
cpl = [0, 0, 1];
|
|
}
|
|
|
|
self.angles = vectoangles(cpl, tmp[b].normal);
|
|
self.solid = SOLID_NOT;
|
|
self.pvsflags = PVSF_NOREMOVE | PVSF_IGNOREPVS;
|
|
self.SendEntity = infodecal_send;
|
|
self.SendFlags = 1;
|
|
}
|