// Copyright (C) 1999-2000 Id Software, Inc. // #include "g_local.h" #define MISSILE_PRESTEP_TIME 50 extern void laserTrapStick( gentity_t *ent, vec3_t endpos, vec3_t normal ); /* ================ G_ReflectMissile Reflect the missile roughly back at it's owner ================ */ float RandFloat(float min, float max); void G_ReflectMissile( gentity_t *ent, gentity_t *missile, vec3_t forward ) { vec3_t bounce_dir; int i; float speed; gentity_t *owner = ent; int isowner = 0; if ( ent->r.ownerNum ) { owner = &g_entities[ent->r.ownerNum]; } if (missile->r.ownerNum == ent->s.number) { //the original owner is bouncing the missile, so don't try to bounce it back at him isowner = 1; } //save the original speed speed = VectorNormalize( missile->s.pos.trDelta ); //if ( ent && owner && owner->NPC && owner->enemy && Q_stricmp( "Tavion", owner->NPC_type ) == 0 && Q_irand( 0, 3 ) ) if ( &g_entities[missile->r.ownerNum] && missile->s.weapon != WP_SABER && missile->s.weapon != G2_MODEL_PART && !isowner ) {//bounce back at them if you can VectorSubtract( g_entities[missile->r.ownerNum].r.currentOrigin, missile->r.currentOrigin, bounce_dir ); VectorNormalize( bounce_dir ); } else if (isowner) { //in this case, actually push the missile away from me, and since we're giving boost to our own missile by pushing it, up the velocity vec3_t missile_dir; speed *= 1.5; VectorSubtract( missile->r.currentOrigin, ent->r.currentOrigin, missile_dir ); VectorCopy( missile->s.pos.trDelta, bounce_dir ); VectorScale( bounce_dir, DotProduct( forward, missile_dir ), bounce_dir ); VectorNormalize( bounce_dir ); } else { vec3_t missile_dir; VectorSubtract( ent->r.currentOrigin, missile->r.currentOrigin, missile_dir ); VectorCopy( missile->s.pos.trDelta, bounce_dir ); VectorScale( bounce_dir, DotProduct( forward, missile_dir ), bounce_dir ); VectorNormalize( bounce_dir ); } for ( i = 0; i < 3; i++ ) { bounce_dir[i] += RandFloat( -0.2f, 0.2f ); } VectorNormalize( bounce_dir ); VectorScale( bounce_dir, speed, missile->s.pos.trDelta ); missile->s.pos.trTime = level.time; // move a bit on the very first frame VectorCopy( missile->r.currentOrigin, missile->s.pos.trBase ); if ( missile->s.weapon != WP_SABER && missile->s.weapon != G2_MODEL_PART ) {//you are mine, now! missile->r.ownerNum = ent->s.number; } if ( missile->s.weapon == WP_ROCKET_LAUNCHER ) {//stop homing missile->think = 0; missile->nextthink = 0; } } void G_DeflectMissile( gentity_t *ent, gentity_t *missile, vec3_t forward ) { vec3_t bounce_dir; int i; float speed; int isowner = 0; vec3_t missile_dir; if (missile->r.ownerNum == ent->s.number) { //the original owner is bouncing the missile, so don't try to bounce it back at him isowner = 1; } //save the original speed speed = VectorNormalize( missile->s.pos.trDelta ); //VectorSubtract( ent->r.currentOrigin, missile->r.currentOrigin, missile_dir ); AngleVectors(ent->client->ps.viewangles, missile_dir, 0, 0); VectorCopy(missile_dir, bounce_dir); //VectorCopy( missile->s.pos.trDelta, bounce_dir ); VectorScale( bounce_dir, DotProduct( forward, missile_dir ), bounce_dir ); VectorNormalize( bounce_dir ); for ( i = 0; i < 3; i++ ) { bounce_dir[i] += RandFloat( -1.0f, 1.0f ); } VectorNormalize( bounce_dir ); VectorScale( bounce_dir, speed, missile->s.pos.trDelta ); missile->s.pos.trTime = level.time; // move a bit on the very first frame VectorCopy( missile->r.currentOrigin, missile->s.pos.trBase ); if ( missile->s.weapon != WP_SABER && missile->s.weapon != G2_MODEL_PART ) {//you are mine, now! missile->r.ownerNum = ent->s.number; } if ( missile->s.weapon == WP_ROCKET_LAUNCHER ) {//stop homing missile->think = 0; missile->nextthink = 0; } } /* ================ G_BounceMissile ================ */ void G_BounceMissile( gentity_t *ent, trace_t *trace ) { vec3_t velocity; float dot; int hitTime; // reflect the velocity on the trace plane hitTime = level.previousTime + ( level.time - level.previousTime ) * trace->fraction; BG_EvaluateTrajectoryDelta( &ent->s.pos, hitTime, velocity ); dot = DotProduct( velocity, trace->plane.normal ); VectorMA( velocity, -2*dot, trace->plane.normal, ent->s.pos.trDelta ); if ( ent->s.eFlags & EF_BOUNCE_SHRAPNEL ) { VectorScale( ent->s.pos.trDelta, 0.25f, ent->s.pos.trDelta ); ent->s.pos.trType = TR_GRAVITY; // check for stop if ( trace->plane.normal[2] > 0.7 && ent->s.pos.trDelta[2] < 40 ) //this can happen even on very slightly sloped walls, so changed it from > 0 to > 0.7 { G_SetOrigin( ent, trace->endpos ); ent->nextthink = level.time + 100; return; } } else if ( ent->s.eFlags & EF_BOUNCE_HALF ) { VectorScale( ent->s.pos.trDelta, 0.65, ent->s.pos.trDelta ); // check for stop if ( trace->plane.normal[2] > 0.2 && VectorLength( ent->s.pos.trDelta ) < 40 ) { G_SetOrigin( ent, trace->endpos ); return; } } if (ent->s.weapon == WP_THERMAL) { //slight hack for hit sound G_Sound(ent, CHAN_BODY, G_SoundIndex(va("sound/weapons/thermal/bounce%i.wav", Q_irand(1, 2)))); } else if (ent->s.weapon == WP_SABER) { G_Sound(ent, CHAN_BODY, G_SoundIndex(va("sound/weapons/saber/bounce%i.wav", Q_irand(1, 3)))); } else if (ent->s.weapon == G2_MODEL_PART) { //Limb bounce sound? } VectorAdd( ent->r.currentOrigin, trace->plane.normal, ent->r.currentOrigin); VectorCopy( ent->r.currentOrigin, ent->s.pos.trBase ); ent->s.pos.trTime = level.time; if (ent->bounceCount != -5) { ent->bounceCount--; } } /* ================ G_ExplodeMissile Explode a missile without an impact ================ */ void G_ExplodeMissile( gentity_t *ent ) { vec3_t dir; vec3_t origin; BG_EvaluateTrajectory( &ent->s.pos, level.time, origin ); SnapVector( origin ); G_SetOrigin( ent, origin ); // we don't have a valid direction, so just point straight up dir[0] = dir[1] = 0; dir[2] = 1; ent->s.eType = ET_GENERAL; G_AddEvent( ent, EV_MISSILE_MISS, DirToByte( dir ) ); ent->freeAfterEvent = qtrue; // splash damage if ( ent->splashDamage ) { if( G_RadiusDamage( ent->r.currentOrigin, ent->parent, ent->splashDamage, ent->splashRadius, ent, ent->splashMethodOfDeath ) ) { if (ent->parent) { g_entities[ent->parent->s.number].client->accuracy_hits++; } else if (ent->activator) { g_entities[ent->activator->s.number].client->accuracy_hits++; } } } trap_LinkEntity( ent ); } void G_RunStuckMissile( gentity_t *ent ) { if ( ent->takedamage ) { if ( ent->s.groundEntityNum >= 0 && ent->s.groundEntityNum < ENTITYNUM_WORLD ) { gentity_t *other = &g_entities[ent->s.groundEntityNum]; if ( (!VectorCompare( vec3_origin, other->s.pos.trDelta ) && other->s.pos.trType != TR_STATIONARY) || (!VectorCompare( vec3_origin, other->s.apos.trDelta ) && other->s.apos.trType != TR_STATIONARY) ) {//thing I stuck to is moving or rotating now, kill me G_Damage( ent, other, other, NULL, NULL, 99999, 0, MOD_CRUSH ); return; } } } // check think function G_RunThink( ent ); } /* ================ G_BounceProjectile ================ */ void G_BounceProjectile( vec3_t start, vec3_t impact, vec3_t dir, vec3_t endout ) { vec3_t v, newv; float dot; VectorSubtract( impact, start, v ); dot = DotProduct( v, dir ); VectorMA( v, -2*dot, dir, newv ); VectorNormalize(newv); VectorMA(impact, 8192, newv, endout); } //----------------------------------------------------------------------------- gentity_t *CreateMissile( vec3_t org, vec3_t dir, float vel, int life, gentity_t *owner, qboolean altFire) //----------------------------------------------------------------------------- { gentity_t *missile; missile = G_Spawn(); missile->nextthink = level.time + life; missile->think = G_FreeEntity; missile->s.eType = ET_MISSILE; missile->r.svFlags = SVF_USE_CURRENT_ORIGIN; missile->parent = owner; missile->r.ownerNum = owner->s.number; if (altFire) { missile->s.eFlags |= EF_ALT_FIRING; } missile->s.pos.trType = TR_LINEAR; missile->s.pos.trTime = level.time;// - MISSILE_PRESTEP_TIME; // NOTENOTE This is a Quake 3 addition over JK2 missile->target_ent = NULL; SnapVector(org); VectorCopy( org, missile->s.pos.trBase ); VectorScale( dir, vel, missile->s.pos.trDelta ); VectorCopy( org, missile->r.currentOrigin); SnapVector(missile->s.pos.trDelta); return missile; } /* ================ G_MissileImpact ================ */ void G_MissileImpact( gentity_t *ent, trace_t *trace ) { gentity_t *other; qboolean hitClient = qfalse; other = &g_entities[trace->entityNum]; // check for bounce if ( !other->takedamage && (ent->bounceCount > 0 || ent->bounceCount == -5) && ( ent->s.eFlags & ( EF_BOUNCE | EF_BOUNCE_HALF ) ) ) { G_BounceMissile( ent, trace ); G_AddEvent( ent, EV_GRENADE_BOUNCE, 0 ); return; } // I would glom onto the EF_BOUNCE code section above, but don't feel like risking breaking something else if ( (!other->takedamage && (ent->bounceCount > 0 || ent->bounceCount == -5) && ( ent->s.eFlags&(EF_BOUNCE_SHRAPNEL) ) ) || ((trace->surfaceFlags&SURF_FORCEFIELD)&&!ent->splashDamage&&!ent->splashRadius&&(ent->bounceCount > 0 || ent->bounceCount == -5)) ) { G_BounceMissile( ent, trace ); if ( ent->bounceCount < 1 ) { ent->s.eFlags &= ~EF_BOUNCE_SHRAPNEL; } return; } /* if ( !other->takedamage && ent->s.weapon == WP_THERMAL && !ent->alt_fire ) {//rolling thermal det - FIXME: make this an eFlag like bounce & stick!!! //G_BounceRollMissile( ent, trace ); if ( ent->owner && ent->owner->s.number == 0 ) { G_MissileAddAlerts( ent ); } //gi.linkentity( ent ); return; } */ if (other->r.contents & CONTENTS_LIGHTSABER) { //hit this person's saber, so.. gentity_t *otherOwner = &g_entities[other->r.ownerNum]; if (otherOwner->takedamage && otherOwner->client && otherOwner->client->ps.duelInProgress && otherOwner->client->ps.duelIndex != ent->r.ownerNum) { goto killProj; } } else { if (other->takedamage && other->client && other->client->ps.duelInProgress && other->client->ps.duelIndex != ent->r.ownerNum) { goto killProj; } } if (other->takedamage && other->client && ent->s.weapon != WP_ROCKET_LAUNCHER && ent->s.weapon != WP_THERMAL && ent->s.weapon != WP_TRIP_MINE && ent->s.weapon != WP_DET_PACK && ent->s.weapon != WP_DEMP2 && ent->methodOfDeath != MOD_REPEATER_ALT && ent->methodOfDeath != MOD_FLECHETTE_ALT_SPLASH && other->client->ps.saberBlockTime < level.time && WP_SaberCanBlock(other, ent->r.currentOrigin, 0, 0, qtrue, 0)) { //only block one projectile per 200ms (to prevent giant swarms of projectiles being blocked) vec3_t fwd; gentity_t *te; int otherDefLevel = other->client->ps.fd.forcePowerLevel[FP_SABERDEFEND]; te = G_TempEntity( ent->r.currentOrigin, EV_SABER_BLOCK ); VectorCopy(ent->r.currentOrigin, te->s.origin); VectorCopy(trace->plane.normal, te->s.angles); te->s.eventParm = 0; /*if (other->client->ps.velocity[2] > 0 || other->client->pers.cmd.forwardmove || other->client->pers.cmd.rightmove) */ if (other->client->ps.velocity[2] > 0 || other->client->pers.cmd.forwardmove < 0) //now we only do it if jumping or running backward. Should be able to full-on charge. { otherDefLevel -= 1; if (otherDefLevel < 0) { otherDefLevel = 0; } } AngleVectors(other->client->ps.viewangles, fwd, NULL, NULL); if (otherDefLevel == FORCE_LEVEL_1) { //if def is only level 1, instead of deflecting the shot it should just die here } else if (otherDefLevel == FORCE_LEVEL_2) { G_DeflectMissile(other, ent, fwd); } else { G_ReflectMissile(other, ent, fwd); } other->client->ps.saberBlockTime = level.time + (350 - (otherDefLevel*100)); //200; if (otherDefLevel == FORCE_LEVEL_3) { other->client->ps.saberBlockTime = 0; //^_^ } if (otherDefLevel == FORCE_LEVEL_1) { goto killProj; } return; } else if (other->r.contents & CONTENTS_LIGHTSABER) { //hit this person's saber, so.. gentity_t *otherOwner = &g_entities[other->r.ownerNum]; if (otherOwner->takedamage && otherOwner->client && ent->s.weapon != WP_ROCKET_LAUNCHER && ent->s.weapon != WP_THERMAL && ent->s.weapon != WP_TRIP_MINE && ent->s.weapon != WP_DET_PACK && ent->s.weapon != WP_DEMP2 && ent->methodOfDeath != MOD_REPEATER_ALT && ent->methodOfDeath != MOD_FLECHETTE_ALT_SPLASH /*&& otherOwner->client->ps.saberBlockTime < level.time*/) { //for now still deflect even if saberBlockTime >= level.time because it hit the actual saber vec3_t fwd; gentity_t *te; int otherDefLevel = otherOwner->client->ps.fd.forcePowerLevel[FP_SABERDEFEND]; //in this case, deflect it even if we can't actually block it because it hit our saber WP_SaberCanBlock(otherOwner, ent->r.currentOrigin, 0, 0, qtrue, 0); te = G_TempEntity( ent->r.currentOrigin, EV_SABER_BLOCK ); VectorCopy(ent->r.currentOrigin, te->s.origin); VectorCopy(trace->plane.normal, te->s.angles); te->s.eventParm = 0; /*if (otherOwner->client->ps.velocity[2] > 0 || otherOwner->client->pers.cmd.forwardmove || otherOwner->client->pers.cmd.rightmove)*/ if (otherOwner->client->ps.velocity[2] > 0 || otherOwner->client->pers.cmd.forwardmove < 0) //now we only do it if jumping or running backward. Should be able to full-on charge. { otherDefLevel -= 1; if (otherDefLevel < 0) { otherDefLevel = 0; } } AngleVectors(otherOwner->client->ps.viewangles, fwd, NULL, NULL); if (otherDefLevel == FORCE_LEVEL_1) { //if def is only level 1, instead of deflecting the shot it should just die here } else if (otherDefLevel == FORCE_LEVEL_2) { G_DeflectMissile(otherOwner, ent, fwd); } else { G_ReflectMissile(otherOwner, ent, fwd); } otherOwner->client->ps.saberBlockTime = level.time + (350 - (otherDefLevel*100));//200; if (otherDefLevel == FORCE_LEVEL_3) { otherOwner->client->ps.saberBlockTime = 0; //^_^ } if (otherDefLevel == FORCE_LEVEL_1) { goto killProj; } return; } } // check for sticking if ( !other->takedamage && ( ent->s.eFlags & EF_MISSILE_STICK ) ) { laserTrapStick( ent, trace->endpos, trace->plane.normal ); G_AddEvent( ent, EV_MISSILE_STICK, 0 ); return; } // impact damage if (other->takedamage) { // FIXME: wrong damage direction? if ( ent->damage ) { vec3_t velocity; if( LogAccuracyHit( other, &g_entities[ent->r.ownerNum] ) ) { g_entities[ent->r.ownerNum].client->accuracy_hits++; hitClient = qtrue; } BG_EvaluateTrajectoryDelta( &ent->s.pos, level.time, velocity ); if ( VectorLength( velocity ) == 0 ) { velocity[2] = 1; // stepped on a grenade } if (ent->s.weapon == WP_BOWCASTER || ent->s.weapon == WP_FLECHETTE || ent->s.weapon == WP_ROCKET_LAUNCHER) { if (ent->s.weapon == WP_FLECHETTE && (ent->s.eFlags & EF_ALT_FIRING)) { ent->think(ent); } else { G_Damage (other, ent, &g_entities[ent->r.ownerNum], velocity, /*ent->s.origin*/ent->r.currentOrigin, ent->damage, DAMAGE_HALF_ABSORB, ent->methodOfDeath); } } else { G_Damage (other, ent, &g_entities[ent->r.ownerNum], velocity, /*ent->s.origin*/ent->r.currentOrigin, ent->damage, 0, ent->methodOfDeath); } } } killProj: // is it cheaper in bandwidth to just remove this ent and create a new // one, rather than changing the missile into the explosion? if ( other->takedamage && other->client ) { G_AddEvent( ent, EV_MISSILE_HIT, DirToByte( trace->plane.normal ) ); ent->s.otherEntityNum = other->s.number; } else if( trace->surfaceFlags & SURF_METALSTEPS ) { G_AddEvent( ent, EV_MISSILE_MISS_METAL, DirToByte( trace->plane.normal ) ); } else if (ent->s.weapon != G2_MODEL_PART) { G_AddEvent( ent, EV_MISSILE_MISS, DirToByte( trace->plane.normal ) ); } ent->freeAfterEvent = qtrue; // change over to a normal entity right at the point of impact ent->s.eType = ET_GENERAL; SnapVectorTowards( trace->endpos, ent->s.pos.trBase ); // save net bandwidth G_SetOrigin( ent, trace->endpos ); // splash damage (doesn't apply to person directly hit) if ( ent->splashDamage ) { if( G_RadiusDamage( trace->endpos, ent->parent, ent->splashDamage, ent->splashRadius, other, ent->splashMethodOfDeath ) ) { if( !hitClient ) { g_entities[ent->r.ownerNum].client->accuracy_hits++; } } } if (ent->s.weapon == G2_MODEL_PART) { ent->freeAfterEvent = qfalse; //it will free itself } trap_LinkEntity( ent ); } /* ================ G_RunMissile ================ */ void G_RunMissile( gentity_t *ent ) { vec3_t origin, groundSpot; trace_t tr; int passent; // get current position BG_EvaluateTrajectory( &ent->s.pos, level.time, origin ); // if this missile bounced off an invulnerability sphere if ( ent->target_ent ) { passent = ent->target_ent->s.number; } else { // ignore interactions with the missile owner passent = ent->r.ownerNum; } // trace a line from the previous position to the current position trap_Trace( &tr, ent->r.currentOrigin, ent->r.mins, ent->r.maxs, origin, passent, ent->clipmask ); if ( tr.startsolid || tr.allsolid ) { // make sure the tr.entityNum is set to the entity we're stuck in trap_Trace( &tr, ent->r.currentOrigin, ent->r.mins, ent->r.maxs, ent->r.currentOrigin, passent, ent->clipmask ); tr.fraction = 0; } else { VectorCopy( tr.endpos, ent->r.currentOrigin ); } if (ent->passThroughNum && tr.entityNum == (ent->passThroughNum-1)) { VectorCopy( origin, ent->r.currentOrigin ); trap_LinkEntity( ent ); goto passthrough; } trap_LinkEntity( ent ); if (ent->s.weapon == G2_MODEL_PART && !ent->bounceCount) { vec3_t lowerOrg; trace_t trG; VectorCopy(ent->r.currentOrigin, lowerOrg); lowerOrg[2] -= 1; trap_Trace( &trG, ent->r.currentOrigin, ent->r.mins, ent->r.maxs, lowerOrg, passent, ent->clipmask ); VectorCopy(trG.endpos, groundSpot); if (!trG.startsolid && !trG.allsolid && trG.entityNum == ENTITYNUM_WORLD) { ent->s.groundEntityNum = trG.entityNum; } else { ent->s.groundEntityNum = ENTITYNUM_NONE; } } if ( tr.fraction != 1) { // never explode or bounce on sky if ( tr.surfaceFlags & SURF_NOIMPACT ) { // If grapple, reset owner if (ent->parent && ent->parent->client && ent->parent->client->hook == ent) { ent->parent->client->hook = NULL; } if (ent->s.weapon == WP_SABER && ent->isSaberEntity) { G_RunThink( ent ); return; } else if (ent->s.weapon != G2_MODEL_PART) { G_FreeEntity( ent ); return; } } G_MissileImpact( ent, &tr ); if ( ent->s.eType != ET_MISSILE && ent->s.weapon != G2_MODEL_PART ) { return; // exploded } } passthrough: if ( ent->s.pos.trType == TR_STATIONARY && (ent->s.eFlags&EF_MISSILE_STICK) ) {//stuck missiles should check some special stuff G_RunStuckMissile( ent ); return; } if (ent->s.weapon == G2_MODEL_PART) { if (ent->s.groundEntityNum == ENTITYNUM_WORLD) { ent->s.pos.trType = TR_LINEAR; VectorClear(ent->s.pos.trDelta); ent->s.pos.trTime = level.time; VectorCopy(groundSpot, ent->s.pos.trBase); VectorCopy(groundSpot, ent->r.currentOrigin); if (ent->s.apos.trType != TR_STATIONARY) { ent->s.apos.trType = TR_STATIONARY; ent->s.apos.trTime = level.time; ent->s.apos.trBase[ROLL] = 0; ent->s.apos.trBase[PITCH] = 0; } } } // check think function after bouncing G_RunThink( ent ); } //=============================================================================