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Xash3DArchive/server/ents/g_reflect.c

494 lines
14 KiB
C

#include "g_local.h"
/* Func_reflect is adopted from psychospaz' original floor reflection code. See
psychospaz' stuff at http://modscape.telefragged.com
Chief differences:
1) The obvious - reflections work in 6 directions, not just the floor.
2) Uses a new entity rather than automatically doing reflections based on surface
or content properties of the floor.
3) Most TE_ effects are reflected, in addition to entities. This requires calls to
the appropriate ReflectXXXXX routine in several places scattered around the code.
4) Roll angle is correct.
You can have up to 16 func_reflects in one map. To increase that number change
MAX_MIRRORS below. The only reason to use a static limit is that the func_reflect
entity addresses get copied to g_mirror, which makes searching for func_reflects
much easier.
*/
#define MAX_MIRRORS 16
edict_t *g_mirror[MAX_MIRRORS];
#define SF_REFLECT_OFF 1
#define SF_REFLECT_TOGGLE 2
void ReflectExplosion (int type, vec3_t origin)
{
int m;
edict_t *mirror;
vec3_t org;
if(!level.num_reflectors)
return;
for(m=0; m<level.num_reflectors; m++)
{
mirror = g_mirror[m];
if(!mirror->inuse)
continue;
if(mirror->spawnflags & SF_REFLECT_OFF)
continue;
// Don't reflect explosions (other than BFG) from floor or ceiling,
// 'cuz there's no way to do it right
if((mirror->style <= 1) && (type != TE_BFG_EXPLOSION) && (type != TE_BFG_BIGEXPLOSION))
continue;
VectorCopy(origin,org);
switch(mirror->style)
{
case 0: org[2] = 2*mirror->absmax[2] - origin[2] + mirror->moveinfo.distance - 2; break;
case 1: org[2] = 2*mirror->absmin[2] - origin[2] - mirror->moveinfo.distance + 2; break;
case 2: org[0] = 2*mirror->absmin[0] - origin[0] + mirror->moveinfo.distance + 2; break;
case 3: org[0] = 2*mirror->absmax[0] - origin[0] - mirror->moveinfo.distance - 2; break;
case 4: org[1] = 2*mirror->absmin[1] - origin[1] + mirror->moveinfo.distance + 2; break;
case 5: org[1] = 2*mirror->absmax[1] - origin[1] - mirror->moveinfo.distance - 2; break;
}
if(org[0] < mirror->absmin[0]) continue;
if(org[0] > mirror->absmax[0]) continue;
if(org[1] < mirror->absmin[1]) continue;
if(org[1] > mirror->absmax[1]) continue;
if(org[2] < mirror->absmin[2]) continue;
if(org[2] > mirror->absmax[2]) continue;
MESSAGE_BEGIN (svc_temp_entity);
WRITE_BYTE (type);
WRITE_COORD (org);
MESSAGE_SEND (MSG_PHS, org, NULL);
}
}
void ReflectTrail (int type, vec3_t start, vec3_t end)
{
int m;
edict_t *mirror;
vec3_t p1, p2;
if(!level.num_reflectors)
return;
for(m=0; m<level.num_reflectors; m++)
{
mirror = g_mirror[m];
if(!mirror->inuse)
continue;
if(mirror->spawnflags & SF_REFLECT_OFF)
continue;
VectorCopy(start,p1);
VectorCopy(end, p2);
switch(mirror->style)
{
case 0:
p1[2] = 2*mirror->absmax[2] - start[2] + mirror->moveinfo.distance + 2;
p2[2] = 2*mirror->absmax[2] - end[2] + mirror->moveinfo.distance + 2;
break;
case 1:
p1[2] = 2*mirror->absmin[2] - start[2] - mirror->moveinfo.distance - 2;
p2[2] = 2*mirror->absmin[2] - end[2] - mirror->moveinfo.distance - 2;
break;
case 2:
p1[0] = 2*mirror->absmin[0] - start[0] + mirror->moveinfo.distance + 2;
p2[0] = 2*mirror->absmin[0] - end[0] + mirror->moveinfo.distance + 2;
break;
case 3:
p1[0] = 2*mirror->absmax[0] - start[0] - mirror->moveinfo.distance - 2;
p2[0] = 2*mirror->absmax[0] - end[0] - mirror->moveinfo.distance - 2;
break;
case 4:
p1[1] = 2*mirror->absmin[1] - start[1] + mirror->moveinfo.distance + 2;
p2[1] = 2*mirror->absmin[1] - end[1] + mirror->moveinfo.distance + 2;
break;
case 5:
p1[1] = 2*mirror->absmax[1] - start[1] - mirror->moveinfo.distance - 2;
p2[1] = 2*mirror->absmax[1] - end[1] - mirror->moveinfo.distance - 2;
break;
}
if(p1[0] < mirror->absmin[0]) continue;
if(p1[0] > mirror->absmax[0]) continue;
if(p1[1] < mirror->absmin[1]) continue;
if(p1[1] > mirror->absmax[1]) continue;
if(p1[2] < mirror->absmin[2]) continue;
if(p1[2] > mirror->absmax[2]) continue;
// If p1 is within func_reflect, we assume p2 is also. If map is constructed
// properly this should always be true.
MESSAGE_BEGIN (svc_temp_entity);
WRITE_BYTE (type);
WRITE_COORD (p1);
WRITE_COORD (p2);
MESSAGE_SEND (MSG_PHS, p1, NULL);
}
}
void ReflectSteam (vec3_t origin,vec3_t movedir,int count,int sounds,int speed, int wait, int nextid)
{
int m;
edict_t *mirror;
vec3_t org, dir;
if(!level.num_reflectors)
return;
for(m=0; m<level.num_reflectors; m++)
{
mirror = g_mirror[m];
if(!mirror->inuse)
continue;
if(mirror->spawnflags & SF_REFLECT_OFF)
continue;
VectorCopy(origin,org);
VectorCopy(movedir,dir);
switch(mirror->style)
{
case 0:
org[2] = 2*mirror->absmax[2] - origin[2] + mirror->moveinfo.distance + 2;
dir[2] = -dir[2];
break;
case 1:
org[2] = 2*mirror->absmin[2] - origin[2] - mirror->moveinfo.distance - 2;
dir[2] = -dir[2];
break;
case 2:
org[0] = 2*mirror->absmin[0] - origin[0] + mirror->moveinfo.distance + 2;
dir[0] = -dir[0];
break;
case 3:
org[0] = 2*mirror->absmax[0] - origin[0] - mirror->moveinfo.distance - 2;
dir[0] = -dir[0];
break;
case 4:
org[1] = 2*mirror->absmin[1] - origin[1] + mirror->moveinfo.distance + 2;
dir[1] = -dir[1];
break;
case 5:
org[1] = 2*mirror->absmax[1] - origin[1] - mirror->moveinfo.distance - 2;
dir[1] = -dir[1];
break;
}
if(org[0] < mirror->absmin[0]) continue;
if(org[0] > mirror->absmax[0]) continue;
if(org[1] < mirror->absmin[1]) continue;
if(org[1] > mirror->absmax[1]) continue;
if(org[2] < mirror->absmin[2]) continue;
if(org[2] > mirror->absmax[2]) continue;
MESSAGE_BEGIN (svc_temp_entity);
WRITE_BYTE (TE_STEAM);
WRITE_SHORT (nextid);
WRITE_BYTE (count);
WRITE_COORD (org);
WRITE_DIR (dir);
WRITE_BYTE (sounds&0xff);
WRITE_SHORT (speed);
WRITE_LONG (wait);
MESSAGE_SEND (MSG_PHS, org, NULL);
}
}
void ReflectSparks (int type,vec3_t origin,vec3_t movedir)
{
int m;
edict_t *mirror;
vec3_t org, dir;
if(!level.num_reflectors)
return;
for(m=0; m<level.num_reflectors; m++)
{
mirror = g_mirror[m];
if(!mirror->inuse)
continue;
if(mirror->spawnflags & SF_REFLECT_OFF)
continue;
// Don't reflect in floor or ceiling because sparks are affected by
// gravity
if(mirror->style <= 1)
continue;
VectorCopy(origin,org);
VectorCopy(movedir,dir);
switch(mirror->style)
{
case 0:
org[2] = 2*mirror->absmax[2] - origin[2] + mirror->moveinfo.distance + 2;
dir[2] = -dir[2];
break;
case 1:
org[2] = 2*mirror->absmin[2] - origin[2] - mirror->moveinfo.distance - 2;
dir[2] = -dir[2];
break;
case 2:
org[0] = 2*mirror->absmin[0] - origin[0] + mirror->moveinfo.distance + 2;
dir[0] = -dir[0];
break;
case 3:
org[0] = 2*mirror->absmax[0] - origin[0] - mirror->moveinfo.distance - 2;
dir[0] = -dir[0];
break;
case 4:
org[1] = 2*mirror->absmin[1] - origin[1] + mirror->moveinfo.distance + 2;
dir[1] = -dir[1];
break;
case 5:
org[1] = 2*mirror->absmax[1] - origin[1] - mirror->moveinfo.distance - 2;
dir[1] = -dir[1];
break;
}
if(org[0] < mirror->absmin[0]) continue;
if(org[0] > mirror->absmax[0]) continue;
if(org[1] < mirror->absmin[1]) continue;
if(org[1] > mirror->absmax[1]) continue;
if(org[2] < mirror->absmin[2]) continue;
if(org[2] > mirror->absmax[2]) continue;
MESSAGE_BEGIN(svc_temp_entity);
WRITE_BYTE(type);
WRITE_COORD(org);
if(type != TE_CHAINFIST_SMOKE)
{
WRITE_DIR(dir);
}
MESSAGE_SEND(MSG_PHS, org, NULL);
}
}
void DeleteReflection (edict_t *ent, int index)
{
edict_t *r;
if(index < 0)
{
int i;
for(i=0; i<6; i++)
{
r = ent->reflection[i];
if(r)
{
if(r->client)
free(r->client);
memset (r, 0, sizeof(*r));
r->classname = "freed";
r->freetime = level.time;
r->inuse = false;
}
ent->reflection[i] = NULL;
}
}
else
{
r = ent->reflection[index];
if(r)
{
if(r->client)
free(r->client);
memset (r, 0, sizeof(*r));
r->classname = "freed";
r->freetime = level.time;
r->inuse = false;
ent->reflection[index] = NULL;
}
}
}
void AddReflection (edict_t *ent)
{
gclient_t *cl;
edict_t *mirror;
float roll;
int i, m;
bool is_reflected;
vec3_t forward;
vec3_t org, oldorg;
for(i=0; i<6; i++)
{
is_reflected = false;
for(m=0; m<level.num_reflectors && !is_reflected; m++)
{
mirror = g_mirror[m];
if(!mirror->inuse)
continue;
if(mirror->spawnflags & SF_REFLECT_OFF)
continue;
if(mirror->style != i)
continue;
VectorCopy(ent->s.origin,org);
switch(i)
{
case 0: org[2] = 2*mirror->absmax[2] - ent->s.origin[2] - mirror->moveinfo.distance - 2; break;
case 1: org[2] = 2*mirror->absmin[2] - ent->s.origin[2] + mirror->moveinfo.distance + 2; break;
case 2: org[0] = 2*mirror->absmin[0] - ent->s.origin[0] + mirror->moveinfo.distance + 2; break;
case 3: org[0] = 2*mirror->absmax[0] - ent->s.origin[0] - mirror->moveinfo.distance - 2; break;
case 4: org[1] = 2*mirror->absmin[1] - ent->s.origin[1] + mirror->moveinfo.distance + 2; break;
case 5: org[1] = 2*mirror->absmax[1] - ent->s.origin[1] - mirror->moveinfo.distance - 2; break;
}
if(org[0] < mirror->absmin[0]) continue;
if(org[0] > mirror->absmax[0]) continue;
if(org[1] < mirror->absmin[1]) continue;
if(org[1] > mirror->absmax[1]) continue;
if(org[2] < mirror->absmin[2]) continue;
if(org[2] > mirror->absmax[2]) continue;
is_reflected = true;
}
if(is_reflected)
{
if (!ent->reflection[i])
{
ent->reflection[i] = G_Spawn();
ent->reflection[i]->owner = ent;
ent->reflection[i]->activator = mirror;
if(ent->s.effects & EF_ROTATE)
{
ent->s.effects &= ~EF_ROTATE;
gi.linkentity(ent);
}
ent->reflection[i]->movetype = MOVETYPE_NONE;
ent->reflection[i]->solid = SOLID_NOT;
ent->reflection[i]->classname = "reflection";
ent->reflection[i]->flags = FL_REFLECT;
ent->reflection[i]->takedamage = DAMAGE_NO;
}
if (ent->client && !ent->reflection[i]->client)
{
cl = (gclient_t *)malloc(sizeof(gclient_t));
ent->reflection[i]->client = cl;
}
if (ent->client && ent->reflection[i]->client)
{
// Lazarus: Hmm.. this crashes when loading saved game.
// Not sure what use pers is anyhow?
// ent->reflection[i]->client->pers = ent->client->pers;
ent->reflection[i]->s = ent->s;
}
ent->reflection[i]->s.number = ent->reflection[i] - g_edicts;
ent->reflection[i]->s.modelindex = ent->s.modelindex;
ent->reflection[i]->s.weaponmodel = ent->s.weaponmodel;
ent->reflection[i]->s.body = ent->s.body;
ent->reflection[i]->s.sequence = ent->s.sequence;
ent->reflection[i]->s.skin = ent->s.skin;
ent->reflection[i]->s.frame = ent->s.frame;
ent->reflection[i]->s.renderfx = ent->s.renderfx;
ent->reflection[i]->s.effects = ent->s.effects;
ent->reflection[i]->s.renderfx &= ~RF_IR_VISIBLE;
VectorCopy (ent->s.angles, ent->reflection[i]->s.angles);
switch(i)
{
case 0:
case 1:
ent->reflection[i]->s.angles[PITCH]+=180;
ent->reflection[i]->s.angles[YAW] +=180;
ent->reflection[i]->s.angles[ROLL] =360-ent->reflection[i]->s.angles[ROLL];
break;
case 2:
case 3:
AngleVectors(ent->reflection[i]->s.angles,forward,NULL,NULL);
roll = ent->reflection[i]->s.angles[ROLL];
forward[0] = -forward[0];
vectoangles(forward,ent->reflection[i]->s.angles);
if((ent->s.angles[PITCH] > 90) && (ent->s.angles[PITCH] < 270))
{
ent->reflection[i]->s.angles[YAW] += 180;
ent->reflection[i]->s.angles[PITCH] = 180-ent->reflection[i]->s.angles[PITCH];
}
ent->reflection[i]->s.angles[ROLL] = 360-roll;
break;
case 4:
case 5:
AngleVectors(ent->reflection[i]->s.angles,forward,NULL,NULL);
roll = ent->reflection[i]->s.angles[ROLL];
forward[1] = -forward[1];
vectoangles(forward,ent->reflection[i]->s.angles);
if((ent->s.angles[PITCH] > 90) && (ent->s.angles[PITCH] < 270))
{
ent->reflection[i]->s.angles[YAW] += 180;
ent->reflection[i]->s.angles[PITCH] = 180-ent->reflection[i]->s.angles[PITCH];
}
ent->reflection[i]->s.angles[ROLL] = 360-roll;
}
// Move player floor reflections down an additional bit so that their
// feet don't poke through the floor when looking down.
if(ent->client && i==0)
org[2] -= 4;
VectorCopy (ent->reflection[i]->s.origin,oldorg);
VectorCopy (org, ent->reflection[i]->s.origin);
if(ent->s.renderfx & RF_BEAM)
{
vec3_t delta;
VectorSubtract(ent->reflection[i]->s.origin,ent->s.origin,delta);
VectorAdd(ent->s.old_origin,delta,ent->reflection[i]->s.old_origin);
}
else
{
// VectorCopy(oldorg, ent->reflection[i]->s.old_origin);
VectorCopy(org,ent->reflection[i]->s.old_origin);
}
gi.linkentity (ent->reflection[i]);
}
else if (ent->reflection[i])
{
DeleteReflection(ent,i);
}
}
}
void use_func_reflect (edict_t *self, edict_t *other, edict_t *activator)
{
if (self->spawnflags & SF_REFLECT_OFF)
{
// was off, turn it on
self->spawnflags &= ~SF_REFLECT_OFF;
}
else
{
// was on, turn it off
self->spawnflags |= SF_REFLECT_OFF;
}
if (!(self->spawnflags & SF_REFLECT_TOGGLE))
self->use = NULL;
}
void SP_func_reflect (edict_t *self)
{
if(level.num_reflectors >= MAX_MIRRORS)
{
gi.dprintf("Max number of func_reflect's (%d) exceeded.\n",MAX_MIRRORS);
G_FreeEdict(self);
return;
}
self->class_id = ENTITY_FUNC_REFLECT;
gi.setmodel (self, self->model);
self->svflags = SVF_NOCLIENT;
g_mirror[level.num_reflectors] = self;
if(!st.lip)
st.lip = 2;
self->moveinfo.distance = st.lip;
self->use = use_func_reflect;
level.num_reflectors++;
}