coord_t Mobj_Friction(mobj_t const *mo)
{
if(Mobj_IsAirborne(mo))
{
// Airborne "friction".
return FRICTION_FLY;
}
#if __JHERETIC__
if(P_ToXSector(Mobj_Sector(mo))->special == 15) // Low friction.
{
return FRICTION_LOW;
}
#endif
#if __JHEXEN__
terraintype_t const *tt = P_MobjFloorTerrain(mo);
if(tt->flags & TTF_FRICTION_LOW)
{
return FRICTION_LOW;
}
#endif
#if LIBCOMMON_HAVE_XG
// Use the current sector's friction.
return XS_Friction(Mobj_Sector(mo));
#else
return FRICTION_NORMAL;
#endif
}
coord_t Mobj_ThrustMul(mobj_t const *mo)
{
coord_t mul = 1.0;
#if __JHEXEN__
if(P_MobjFloorTerrain(mo)->flags & TTF_FRICTION_LOW)
{
mul /= 2;
}
#else // !__JHEXEN__
Sector *sec = Mobj_Sector(mo);
#if __JHERETIC__
if(P_ToXSector(sec)->special == 15) // Friction_Low
{
mul /= 4;
return mul; // XG friction ignored.
}
#endif
// Use a thrust multiplier based on the sector's friction.
mul = Mobj_ThrustMulForFriction(XS_Friction(sec));
#endif
return mul;
}
int EV_Teleport(Line* line, int side, mobj_t* mo, dd_bool spawnFog)
{
mobj_t* dest;
// Clients cannot teleport on their own.
if(IS_CLIENT) return 0;
if(mo->flags2 & MF2_NOTELEPORT) return 0;
// Don't teleport if hit back of line, so you can get out of teleporter.
if(side == 1) return 0;
if((dest = getTeleportDestination(P_ToXLine(line)->tag)) != NULL)
{
// A suitable destination has been found.
coord_t oldPos[3], aboveFloor;
angle_t oldAngle;
mobj_t* fog;
uint an;
memcpy(oldPos, mo->origin, sizeof(mo->origin));
oldAngle = mo->angle;
aboveFloor = mo->origin[VZ] - mo->floorZ;
if(!P_TeleportMove(mo, dest->origin[VX], dest->origin[VY], false))
return 0;
mo->origin[VZ] = mo->floorZ;
if(spawnFog)
{
// Spawn teleport fog at source and destination.
if((fog = P_SpawnMobj(MT_TFOG, oldPos, oldAngle + ANG180, 0)))
S_StartSound(SFX_TELEPT, fog);
an = dest->angle >> ANGLETOFINESHIFT;
if((fog = P_SpawnMobjXYZ(MT_TFOG, dest->origin[VX] + 20 * FIX2FLT(finecosine[an]),
dest->origin[VY] + 20 * FIX2FLT(finesine[an]),
mo->origin[VZ], dest->angle + ANG180, 0)))
{
// Emit sound, where?
S_StartSound(SFX_TELEPT, fog);
}
}
mo->angle = dest->angle;
if(mo->flags2 & MF2_FLOORCLIP)
{
mo->floorClip = 0;
if(FEQUAL(mo->origin[VZ], P_GetDoublep(Mobj_Sector(mo), DMU_FLOOR_HEIGHT)))
{
terraintype_t const *tt = P_MobjFloorTerrain(mo);
if(tt->flags & TTF_FLOORCLIP)
{
mo->floorClip = 10;
}
}
}
mo->mom[MX] = mo->mom[MY] = mo->mom[MZ] = 0;
// $voodoodolls Must be the real player.
if(mo->player && mo->player->plr->mo == mo)
{
mo->reactionTime = 18; // Don't move for a bit.
if(mo->player->powers[PT_FLIGHT] && aboveFloor > 0)
{
mo->origin[VZ] = mo->floorZ + aboveFloor;
if(mo->origin[VZ] + mo->height > mo->ceilingZ)
{
mo->origin[VZ] = mo->ceilingZ - mo->height;
}
}
else
{
//mo->dPlayer->clLookDir = 0; /* $unifiedangles */
mo->dPlayer->lookDir = 0;
}
mo->player->viewHeight = (coord_t) cfg.common.plrViewHeight;
mo->player->viewHeightDelta = 0;
mo->player->viewZ = mo->origin[VZ] + mo->player->viewHeight;
mo->player->viewOffset[VX] = mo->player->viewOffset[VY] = mo->player->viewOffset[VZ] = 0;
mo->player->bob = 0;
//mo->dPlayer->clAngle = mo->angle; /* $unifiedangles */
mo->dPlayer->flags |= DDPF_FIXANGLES | DDPF_FIXORIGIN | DDPF_FIXMOM;
}
return 1;
}
