static void FireLasgun( gentity_t *self )
{
// TODO: Merge this with other *Fire functions
trace_t tr;
vec3_t end;
gentity_t *target;
VectorMA( muzzle, 8192 * 16, forward, end );
G_UnlaggedOn( self, muzzle, 8192 * 16 );
trap_Trace( &tr, muzzle, NULL, NULL, end, self->s.number, MASK_SHOT );
G_UnlaggedOff();
if ( tr.surfaceFlags & SURF_NOIMPACT )
{
return;
}
target = &g_entities[ tr.entityNum ];
// snap the endpos to integers, but nudged towards the line
G_SnapVectorTowards( tr.endpos, muzzle );
SendRangedHitEvent( self, target, &tr );
if ( target->takedamage )
{
G_Damage( target, self, self, forward, tr.endpos, LASGUN_DAMAGE, 0, MOD_LASGUN );
}
}
static void SendRangedHitEvent( gentity_t *attacker, gentity_t *target, trace_t *tr )
{
gentity_t *event;
// snap the endpos to integers, but nudged towards the line
G_SnapVectorTowards( tr->endpos, muzzle );
if ( target->takedamage && ( target->s.eType == ET_BUILDABLE || target->s.eType == ET_PLAYER ) )
{
event = G_NewTempEntity( tr->endpos, EV_WEAPON_HIT_ENTITY );
}
else
{
event = G_NewTempEntity( tr->endpos, EV_WEAPON_HIT_ENVIRONMENT );
}
// normal
event->s.eventParm = DirToByte( tr->plane.normal );
// victim
event->s.otherEntityNum = target->s.number;
// attacker
event->s.otherEntityNum2 = attacker->s.number;
// weapon
event->s.weapon = attacker->s.weapon;
// weapon mode
event->s.generic1 = attacker->s.generic1;
}
static void FireMassdriver( gentity_t *self )
{
// TODO: Merge this with other *Fire functions
trace_t tr;
vec3_t end;
gentity_t *target;
VectorMA( muzzle, 8192.0f * 16.0f, forward, end );
G_UnlaggedOn( self, muzzle, 8192.0f * 16.0f );
trap_Trace( &tr, muzzle, nullptr, nullptr, end, self->s.number, MASK_SHOT, 0 );
G_UnlaggedOff();
if ( tr.surfaceFlags & SURF_NOIMPACT )
{
return;
}
target = &g_entities[ tr.entityNum ];
// snap the endpos to integers, but nudged towards the line
G_SnapVectorTowards( tr.endpos, muzzle );
SendRangedHitEvent( self, target, &tr );
if ( target->takedamage )
{
G_Damage( target, self, self, forward, tr.endpos, MDRIVER_DMG, DAMAGE_KNOCKBACK,
MOD_MDRIVER );
}
}
static void FireLasgun( gentity_t *self )
{
// TODO: Merge this with other *Fire functions
trace_t tr;
vec3_t end;
gentity_t *target;
VectorMA( muzzle, 8192 * 16, forward, end );
G_UnlaggedOn( self, muzzle, 8192 * 16 );
trap_Trace( &tr, muzzle, nullptr, nullptr, end, self->s.number, MASK_SHOT, 0 );
G_UnlaggedOff();
if ( tr.surfaceFlags & SURF_NOIMPACT )
{
return;
}
target = &g_entities[ tr.entityNum ];
// snap the endpos to integers, but nudged towards the line
G_SnapVectorTowards( tr.endpos, muzzle );
SendRangedHitEvent( self, target, &tr );
target->entity->Damage((float)LASGUN_DAMAGE, self, Vec3::Load(tr.endpos),
Vec3::Load(forward), 0, (meansOfDeath_t)MOD_LASGUN);
}
static void MissileImpact( gentity_t *ent, trace_t *trace )
{
int dirAsByte, impactFlags;
const missileAttributes_t *ma = BG_Missile( ent->s.modelindex );
gentity_t *hitEnt = &g_entities[ trace->entityNum ];
gentity_t *attacker = &g_entities[ ent->r.ownerNum ];
// Returns whether damage and hit effects should be done and played.
std::function<int(gentity_t*, trace_t*, gentity_t*)> impactFunc;
// Check for bounce.
if ( ent->s.eFlags & ( EF_BOUNCE | EF_BOUNCE_HALF ) &&
!HasComponents<HealthComponent>(*hitEnt->entity) )
{
BounceMissile( ent, trace );
if ( !( ent->s.eFlags & EF_NO_BOUNCE_SOUND ) )
{
G_AddEvent( ent, EV_GRENADE_BOUNCE, 0 );
}
return;
}
// Call missile specific impact functions.
switch( ent->s.modelindex )
{
case MIS_GRENADE: impactFunc = ImpactGrenade; break;
case MIS_FIREBOMB: impactFunc = ImpactGrenade; break;
case MIS_FLAMER: impactFunc = ImpactFlamer; break;
case MIS_FIREBOMB_SUB: impactFunc = ImpactFirebombSub; break;
case MIS_LOCKBLOB: impactFunc = ImpactLockblock; break;
case MIS_SLOWBLOB: impactFunc = ImpactSlowblob; break;
case MIS_HIVE: impactFunc = ImpactHive; break;
default: impactFunc = DefaultImpactFunc; break;
}
impactFlags = impactFunc( ent, trace, hitEnt );
// Deal impact damage.
if ( !( impactFlags & MIF_NO_DAMAGE ) )
{
if ( ent->damage && G_Alive( hitEnt ) )
{
vec3_t dir;
BG_EvaluateTrajectoryDelta( &ent->s.pos, level.time, dir );
if ( VectorNormalize( dir ) == 0 )
{
dir[ 2 ] = 1; // stepped on a grenade
}
int dflags = 0;
if ( !ma->doLocationalDamage ) dflags |= DAMAGE_NO_LOCDAMAGE;
if ( ma->doKnockback ) dflags |= DAMAGE_KNOCKBACK;
hitEnt->entity->Damage(ent->damage * MissileTimeDmgMod(ent), attacker,
Vec3::Load(trace->endpos), Vec3::Load(dir), dflags,
(meansOfDeath_t)ent->methodOfDeath);
}
// splash damage (doesn't apply to person directly hit)
if ( ent->splashDamage )
{
G_RadiusDamage( trace->endpos, ent->parent,
ent->splashDamage * MissileTimeSplashDmgMod( ent ),
ent->splashRadius, hitEnt, ( ma->doKnockback ? DAMAGE_KNOCKBACK : 0 ),
ent->splashMethodOfDeath );
}
}
// Play hit effects and remove the missile.
if ( !( impactFlags & MIF_NO_EFFECT ) )
{
// Use either the trajectory direction or the surface normal for the hit event.
if ( ma->impactFlightDirection )
{
vec3_t trajDir;
BG_EvaluateTrajectoryDelta( &ent->s.pos, level.time, trajDir );
VectorNormalize( trajDir );
dirAsByte = DirToByte( trajDir );
}
else
{
dirAsByte = DirToByte( trace->plane.normal );
}
// Add hit event.
if ( HasComponents<HealthComponent>(*hitEnt->entity) )
{
G_AddEvent( ent, EV_MISSILE_HIT_ENTITY, dirAsByte );
ent->s.otherEntityNum = hitEnt->s.number;
}
else if ( trace->surfaceFlags & SURF_METAL )
{
G_AddEvent( ent, EV_MISSILE_HIT_METAL, dirAsByte );
}
else
{
G_AddEvent( ent, EV_MISSILE_HIT_ENVIRONMENT, dirAsByte );
}
ent->freeAfterEvent = true;
// HACK: Change over to a general entity at the point of impact.
ent->s.eType = ET_GENERAL;
// Prevent map models from appearing at impact point.
ent->s.modelindex = 0;
// Save net bandwith.
G_SnapVectorTowards( trace->endpos, ent->s.pos.trBase );
G_SetOrigin( ent, trace->endpos );
trap_LinkEntity( ent );
}
// If no impact happened, check if we should continue or free ourselves.
else if ( !( impactFlags & MIF_NO_FREE ) )
{
G_FreeEntity( ent );
}
}