/* =========================================================================== Copyright (C) 1999-2005 Id Software, Inc. Copyright (C) 2000-2009 Darklegion Development This file is part of Tremulous. Tremulous is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. Tremulous is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Tremulous; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA =========================================================================== */ // g_weapon.c // perform the server side effects of a weapon firing #include "g_local.h" static vec3_t forward, right, up; static vec3_t muzzle; /* ================ G_ForceWeaponChange ================ */ void G_ForceWeaponChange( gentity_t *ent, weapon_t weapon ) { playerState_t *ps = &ent->client->ps; // stop a reload in progress if( ps->weaponstate == WEAPON_RELOADING ) { ps->torsoAnim = ( ( ps->torsoAnim & ANIM_TOGGLEBIT ) ^ ANIM_TOGGLEBIT ) | TORSO_RAISE; ps->weaponTime = 250; ps->weaponstate = WEAPON_READY; } if( weapon == WP_NONE || !BG_InventoryContainsWeapon( weapon, ps->stats ) ) { // switch to the first non blaster weapon ps->persistant[ PERS_NEWWEAPON ] = BG_PrimaryWeapon( ent->client->ps.stats ); } else ps->persistant[ PERS_NEWWEAPON ] = weapon; // force this here to prevent flamer effect from continuing ps->generic1 = WPM_NOTFIRING; // The PMove will do an animated drop, raise, and set the new weapon ps->pm_flags |= PMF_WEAPON_SWITCH; } /* ================= G_GiveClientMaxAmmo ================= */ void G_GiveClientMaxAmmo( gentity_t *ent, qboolean buyingEnergyAmmo ) { int i, maxAmmo, maxClips; qboolean restoredAmmo = qfalse, restoredEnergy = qfalse; for( i = WP_NONE + 1; i < WP_NUM_WEAPONS; i++ ) { qboolean energyWeapon; energyWeapon = BG_Weapon( i )->usesEnergy; if( !BG_InventoryContainsWeapon( i, ent->client->ps.stats ) || BG_Weapon( i )->infiniteAmmo || BG_WeaponIsFull( i, ent->client->ps.stats, ent->client->ps.ammo, ent->client->ps.clips ) || ( buyingEnergyAmmo && !energyWeapon ) ) continue; maxAmmo = BG_Weapon( i )->maxAmmo; maxClips = BG_Weapon( i )->maxClips; // Apply battery pack modifier if( energyWeapon && BG_InventoryContainsUpgrade( UP_BATTPACK, ent->client->ps.stats ) ) { maxAmmo *= BATTPACK_MODIFIER; restoredEnergy = qtrue; } ent->client->ps.ammo = maxAmmo; ent->client->ps.clips = maxClips; restoredAmmo = qtrue; } if( restoredAmmo ) G_ForceWeaponChange( ent, ent->client->ps.weapon ); if( restoredEnergy ) G_AddEvent( ent, EV_RPTUSE_SOUND, 0 ); } /* ================ 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); } /* ================ G_WideTrace Trace a bounding box against entities, but not the world Also check there is a line of sight between the start and end point ================ */ static void G_WideTrace( trace_t *tr, gentity_t *ent, float range, float width, float height, gentity_t **target ) { vec3_t mins, maxs; vec3_t end; VectorSet( mins, -width, -width, -height ); VectorSet( maxs, width, width, height ); *target = NULL; if( !ent->client ) return; G_UnlaggedOn( ent, muzzle, range + width ); VectorMA( muzzle, range, forward, end ); // Trace against entities trap_Trace( tr, muzzle, mins, maxs, end, ent->s.number, CONTENTS_BODY ); if( tr->entityNum != ENTITYNUM_NONE ) *target = &g_entities[ tr->entityNum ]; // Set range to the trace length plus the width, so that the end of the // LOS trace is close to the exterior of the target's bounding box range = Distance( muzzle, tr->endpos ) + width; VectorMA( muzzle, range, forward, end ); // Trace for line of sight against the world trap_Trace( tr, muzzle, NULL, NULL, end, ent->s.number, CONTENTS_SOLID ); if( tr->entityNum != ENTITYNUM_NONE ) *target = &g_entities[ tr->entityNum ]; G_UnlaggedOff( ); } /* ====================== SnapVectorTowards SnapVectorNormal Round a vector to integers for more efficient network transmission, but make sure that it rounds towards a given point rather than blindly truncating. This prevents it from truncating into a wall. ====================== */ void SnapVectorTowards( vec3_t v, vec3_t to ) { int i; for( i = 0 ; i < 3 ; i++ ) { if( v[ i ] >= 0 ) v[ i ] = (int)( v[ i ] + ( to[ i ] <= v[ i ] ? 0 : 1 ) ); else v[ i ] = (int)( v[ i ] + ( to[ i ] <= v[ i ] ? -1 : 0 ) ); } } void SnapVectorNormal( vec3_t v, vec3_t normal ) { int i; for( i = 0 ; i < 3 ; i++ ) { if( v[ i ] >= 0 ) v[ i ] = (int)( v[ i ] + ( normal[ i ] <= 0 ? 0 : 1 ) ); else v[ i ] = (int)( v[ i ] + ( normal[ i ] <= 0 ? -1 : 0 ) ); } } /* =============== BloodSpurt Generates a blood spurt event for traces with accurate end points =============== */ static void BloodSpurt( gentity_t *attacker, gentity_t *victim, trace_t *tr ) { gentity_t *tent; if( !attacker->client ) return; if( victim->health <= 0 ) return; tent = G_TempEntity( tr->endpos, EV_MISSILE_HIT ); tent->s.otherEntityNum = victim->s.number; tent->s.eventParm = DirToByte( tr->plane.normal ); tent->s.weapon = attacker->s.weapon; tent->s.generic1 = attacker->s.generic1; // weaponMode } /* =============== WideBloodSpurt Calculates the position of a blood spurt for wide traces and generates an event =============== */ static void WideBloodSpurt( gentity_t *attacker, gentity_t *victim, trace_t *tr ) { gentity_t *tent; vec3_t normal, origin; float mag, radius; if( !attacker->client ) return; if( victim->health <= 0 ) return; if( tr ) VectorSubtract( tr->endpos, victim->s.origin, normal ); else VectorSubtract( attacker->client->ps.origin, victim->s.origin, normal ); // Normalize the horizontal components of the vector difference to the // "radius" of the bounding box mag = sqrt( normal[ 0 ] * normal[ 0 ] + normal[ 1 ] * normal[ 1 ] ); radius = victim->r.maxs[ 0 ] * 1.21f; if( mag > radius ) { normal[ 0 ] = normal[ 0 ] / mag * radius; normal[ 1 ] = normal[ 1 ] / mag * radius; } // Clamp origin to be within bounding box vertically if( normal[ 2 ] > victim->r.maxs[ 2 ] ) normal[ 2 ] = victim->r.maxs[ 2 ]; if( normal[ 2 ] < victim->r.mins[ 2 ] ) normal[ 2 ] = victim->r.mins[ 2 ]; VectorAdd( victim->s.origin, normal, origin ); VectorNegate( normal, normal ); VectorNormalize( normal ); // Create the blood spurt effect entity tent = G_TempEntity( origin, EV_MISSILE_HIT ); tent->s.eventParm = DirToByte( normal ); tent->s.otherEntityNum = victim->s.number; tent->s.weapon = attacker->s.weapon; tent->s.generic1 = attacker->s.generic1; // weaponMode } /* =============== meleeAttack =============== */ void meleeAttack( gentity_t *ent, float range, float width, float height, int damage, meansOfDeath_t mod ) { trace_t tr; gentity_t *traceEnt; G_WideTrace( &tr, ent, range, width, height, &traceEnt ); if( traceEnt == NULL || !traceEnt->takedamage ) return; WideBloodSpurt( ent, traceEnt, &tr ); G_Damage( traceEnt, ent, ent, forward, tr.endpos, damage, DAMAGE_NO_KNOCKBACK, mod ); } /* ====================================================================== MACHINEGUN ====================================================================== */ void bulletFire( gentity_t *ent, float spread, int damage, int mod ) { trace_t tr; vec3_t end; float r; float u; gentity_t *tent; gentity_t *traceEnt; r = random( ) * M_PI * 2.0f; u = sin( r ) * crandom( ) * spread * 16; r = cos( r ) * crandom( ) * spread * 16; VectorMA( muzzle, 8192 * 16, forward, end ); VectorMA( end, r, right, end ); VectorMA( end, u, up, end ); // don't use unlagged if this is not a client (e.g. turret) if( ent->client ) { G_UnlaggedOn( ent, muzzle, 8192 * 16 ); trap_Trace( &tr, muzzle, NULL, NULL, end, ent->s.number, MASK_SHOT ); G_UnlaggedOff( ); } else trap_Trace( &tr, muzzle, NULL, NULL, end, ent->s.number, MASK_SHOT ); if( tr.surfaceFlags & SURF_NOIMPACT ) return; traceEnt = &g_entities[ tr.entityNum ]; // snap the endpos to integers, but nudged towards the line SnapVectorTowards( tr.endpos, muzzle ); // send bullet impact if( traceEnt->takedamage && (traceEnt->s.eType == ET_PLAYER || traceEnt->s.eType == ET_BUILDABLE ) ) { tent = G_TempEntity( tr.endpos, EV_BULLET_HIT_FLESH ); tent->s.eventParm = traceEnt->s.number; } else { tent = G_TempEntity( tr.endpos, EV_BULLET_HIT_WALL ); tent->s.eventParm = DirToByte( tr.plane.normal ); } tent->s.otherEntityNum = ent->s.number; if( traceEnt->takedamage ) { G_Damage( traceEnt, ent, ent, forward, tr.endpos, damage, 0, mod ); } } /* ====================================================================== SHOTGUN ====================================================================== */ // this should match CG_ShotgunPattern void ShotgunPattern( vec3_t origin, vec3_t origin2, int seed, gentity_t *ent ) { int i; float r, u; vec3_t end; vec3_t forward, right, up; trace_t tr; gentity_t *traceEnt; // derive the right and up vectors from the forward vector, because // the client won't have any other information VectorNormalize2( origin2, forward ); PerpendicularVector( right, forward ); CrossProduct( forward, right, up ); // generate the "random" spread pattern for( i = 0; i < SHOTGUN_PELLETS; i++ ) { r = Q_crandom( &seed ) * SHOTGUN_SPREAD * 16; u = Q_crandom( &seed ) * SHOTGUN_SPREAD * 16; VectorMA( origin, SHOTGUN_RANGE, forward, end ); VectorMA( end, r, right, end ); VectorMA( end, u, up, end ); trap_Trace( &tr, origin, NULL, NULL, end, ent->s.number, MASK_SHOT ); traceEnt = &g_entities[ tr.entityNum ]; // send bullet impact if( !( tr.surfaceFlags & SURF_NOIMPACT ) ) { if( traceEnt->takedamage ) G_Damage( traceEnt, ent, ent, forward, tr.endpos, SHOTGUN_DMG, 0, MOD_SHOTGUN ); } } } void shotgunFire( gentity_t *ent ) { gentity_t *tent; // send shotgun blast tent = G_TempEntity( muzzle, EV_SHOTGUN ); VectorScale( forward, 4096, tent->s.origin2 ); SnapVector( tent->s.origin2 ); tent->s.eventParm = rand() / ( RAND_MAX / 0x100 + 1 ); // seed for spread pattern tent->s.otherEntityNum = ent->s.number; G_UnlaggedOn( ent, muzzle, SHOTGUN_RANGE ); ShotgunPattern( tent->s.pos.trBase, tent->s.origin2, tent->s.eventParm, ent ); G_UnlaggedOff(); } /* ====================================================================== MASS DRIVER ====================================================================== */ void massDriverFire( gentity_t *ent ) { trace_t tr; vec3_t end; gentity_t *tent; gentity_t *traceEnt; VectorMA( muzzle, 8192.0f * 16.0f, forward, end ); G_UnlaggedOn( ent, muzzle, 8192.0f * 16.0f ); trap_Trace( &tr, muzzle, NULL, NULL, end, ent->s.number, MASK_SHOT ); G_UnlaggedOff( ); if( tr.surfaceFlags & SURF_NOIMPACT ) return; traceEnt = &g_entities[ tr.entityNum ]; // snap the endpos to integers, but nudged towards the line SnapVectorTowards( tr.endpos, muzzle ); // send impact if( traceEnt->takedamage && (traceEnt->s.eType == ET_BUILDABLE || traceEnt->s.eType == ET_PLAYER ) ) { BloodSpurt( ent, traceEnt, &tr ); } else { tent = G_TempEntity( tr.endpos, EV_MISSILE_MISS ); tent->s.eventParm = DirToByte( tr.plane.normal ); tent->s.weapon = ent->s.weapon; tent->s.generic1 = ent->s.generic1; //weaponMode } if( traceEnt->takedamage ) { G_Damage( traceEnt, ent, ent, forward, tr.endpos, MDRIVER_DMG, 0, MOD_MDRIVER ); } } /* ====================================================================== LOCKBLOB ====================================================================== */ void lockBlobLauncherFire( gentity_t *ent ) { fire_lockblob( ent, muzzle, forward ); } /* ====================================================================== HIVE ====================================================================== */ void hiveFire( gentity_t *ent ) { vec3_t origin; // Fire from the hive tip, not the center VectorMA( muzzle, ent->r.maxs[ 2 ], ent->s.origin2, origin ); fire_hive( ent, origin, forward ); } /* ====================================================================== BLASTER PISTOL ====================================================================== */ void blasterFire( gentity_t *ent ) { fire_blaster( ent, muzzle, forward ); } /* ====================================================================== PULSE RIFLE ====================================================================== */ void pulseRifleFire( gentity_t *ent ) { fire_pulseRifle( ent, muzzle, forward ); } /* ====================================================================== FLAME THROWER ====================================================================== */ void flamerFire( gentity_t *ent ) { vec3_t origin; // Correct muzzle so that the missile does not start in the ceiling VectorMA( muzzle, -7.0f, up, origin ); // Correct muzzle so that the missile fires from the player's hand VectorMA( origin, 4.5f, right, origin ); fire_flamer( ent, origin, forward ); } /* ====================================================================== GRENADE ====================================================================== */ void throwGrenade( gentity_t *ent ) { launch_grenade( ent, muzzle, forward ); } /* ====================================================================== LAS GUN ====================================================================== */ /* =============== lasGunFire =============== */ void lasGunFire( gentity_t *ent ) { trace_t tr; vec3_t end; gentity_t *tent; gentity_t *traceEnt; VectorMA( muzzle, 8192 * 16, forward, end ); G_UnlaggedOn( ent, muzzle, 8192 * 16 ); trap_Trace( &tr, muzzle, NULL, NULL, end, ent->s.number, MASK_SHOT ); G_UnlaggedOff( ); if( tr.surfaceFlags & SURF_NOIMPACT ) return; traceEnt = &g_entities[ tr.entityNum ]; // snap the endpos to integers, but nudged towards the line SnapVectorTowards( tr.endpos, muzzle ); // send impact if( traceEnt->takedamage && (traceEnt->s.eType == ET_BUILDABLE || traceEnt->s.eType == ET_PLAYER ) ) { BloodSpurt( ent, traceEnt, &tr ); } else { tent = G_TempEntity( tr.endpos, EV_MISSILE_MISS ); tent->s.eventParm = DirToByte( tr.plane.normal ); tent->s.weapon = ent->s.weapon; tent->s.generic1 = ent->s.generic1; //weaponMode } if( traceEnt->takedamage ) G_Damage( traceEnt, ent, ent, forward, tr.endpos, LASGUN_DAMAGE, 0, MOD_LASGUN ); } /* ====================================================================== PAIN SAW ====================================================================== */ void painSawFire( gentity_t *ent ) { trace_t tr; vec3_t temp; gentity_t *tent, *traceEnt; G_WideTrace( &tr, ent, PAINSAW_RANGE, PAINSAW_WIDTH, PAINSAW_HEIGHT, &traceEnt ); if( !traceEnt || !traceEnt->takedamage ) return; // hack to line up particle system with weapon model tr.endpos[ 2 ] -= 5.0f; // send blood impact if( traceEnt->s.eType == ET_PLAYER || traceEnt->s.eType == ET_BUILDABLE ) { BloodSpurt( ent, traceEnt, &tr ); } else { VectorCopy( tr.endpos, temp ); tent = G_TempEntity( temp, EV_MISSILE_MISS ); tent->s.eventParm = DirToByte( tr.plane.normal ); tent->s.weapon = ent->s.weapon; tent->s.generic1 = ent->s.generic1; //weaponMode } G_Damage( traceEnt, ent, ent, forward, tr.endpos, PAINSAW_DAMAGE, DAMAGE_NO_KNOCKBACK, MOD_PAINSAW ); } /* ====================================================================== LUCIFER CANNON ====================================================================== */ /* =============== LCChargeFire =============== */ void LCChargeFire( gentity_t *ent, qboolean secondary ) { if( secondary && ent->client->ps.stats[ STAT_MISC ] <= 0 ) fire_luciferCannon( ent, muzzle, forward, LCANNON_SECONDARY_DAMAGE, LCANNON_SECONDARY_RADIUS, LCANNON_SECONDARY_SPEED ); else fire_luciferCannon( ent, muzzle, forward, ent->client->ps.stats[ STAT_MISC ] * LCANNON_DAMAGE / LCANNON_CHARGE_TIME_MAX, LCANNON_RADIUS, LCANNON_SPEED ); ent->client->ps.stats[ STAT_MISC ] = 0; } /* ====================================================================== TESLA GENERATOR ====================================================================== */ void teslaFire( gentity_t *self ) { trace_t tr; vec3_t origin, target; gentity_t *tent; if( !self->enemy ) return; // Move the muzzle from the entity origin up a bit to fire over turrets VectorMA( muzzle, self->r.maxs[ 2 ], self->s.origin2, origin ); // Don't aim for the center, aim at the top of the bounding box VectorCopy( self->enemy->s.origin, target ); target[ 2 ] += self->enemy->r.maxs[ 2 ]; // Trace to the target entity trap_Trace( &tr, origin, NULL, NULL, target, self->s.number, MASK_SHOT ); if( tr.entityNum != self->enemy->s.number ) return; // Client side firing effect self->s.eFlags |= EF_FIRING; // Deal damage if( self->enemy->takedamage ) { vec3_t dir; VectorSubtract( target, origin, dir ); G_Damage( self->enemy, self, self, dir, tr.endpos, TESLAGEN_DMG, 0, MOD_TESLAGEN ); } // Send tesla zap trail tent = G_TempEntity( tr.endpos, EV_TESLATRAIL ); tent->s.generic1 = self->s.number; // src tent->s.clientNum = self->enemy->s.number; // dest } /* ====================================================================== BUILD GUN ====================================================================== */ void CheckCkitRepair( gentity_t *ent ) { vec3_t viewOrigin, forward, end; trace_t tr; gentity_t *traceEnt; int bHealth; if( ent->client->ps.weaponTime > 0 || ent->client->buildTimer > 0 ) return; BG_GetClientViewOrigin( &ent->client->ps, viewOrigin ); AngleVectors( ent->client->ps.viewangles, forward, NULL, NULL ); VectorMA( viewOrigin, 100, forward, end ); trap_Trace( &tr, viewOrigin, NULL, NULL, end, ent->s.number, MASK_PLAYERSOLID ); traceEnt = &g_entities[ tr.entityNum ]; if( tr.fraction < 1.0f && traceEnt->spawned && traceEnt->health > 0 && traceEnt->s.eType == ET_BUILDABLE && traceEnt->buildableTeam == TEAM_HUMANS ) { if(BG_Buildable(traceEnt->s.modelindex,NULL)->cuboid) if(!BG_CuboidAttributes(traceEnt->s.modelindex)->repairable) return; bHealth = BG_Buildable( traceEnt->s.modelindex, traceEnt->cuboidSize )->health; if( traceEnt->health < bHealth ) { traceEnt->health += HBUILD_HEALRATE; if( traceEnt->health >= bHealth ) { traceEnt->health = bHealth; G_AddEvent( ent, EV_BUILD_REPAIRED, 0 ); } else G_AddEvent( ent, EV_BUILD_REPAIR, 0 ); ent->client->ps.weaponTime += BG_Weapon( ent->client->ps.weapon )->repeatRate1; } } } /* =============== cancelBuildFire =============== */ void cancelBuildFire( gentity_t *ent ) { // Cancel ghost buildable if( ent->client->ps.stats[ STAT_BUILDABLE ] != BA_NONE ) { ent->client->ps.stats[ STAT_BUILDABLE ] = BA_NONE; return; } if( ent->client->ps.weapon == WP_ABUILD || ent->client->ps.weapon == WP_ABUILD2 ) meleeAttack( ent, ABUILDER_CLAW_RANGE, ABUILDER_CLAW_WIDTH, ABUILDER_CLAW_WIDTH, ABUILDER_CLAW_DMG, MOD_ABUILDER_CLAW ); } /* =============== buildFire =============== */ void buildFire( gentity_t *ent, dynMenu_t menu ) { buildable_t buildable = ( ent->client->ps.stats[ STAT_BUILDABLE ] & ~SB_VALID_TOGGLEBIT ); if( buildable > BA_NONE ) { if( ent->client->buildTimer > 0 ) { G_AddEvent( ent, EV_BUILD_DELAY, ent->client->ps.clientNum ); return; } if( G_BuildIfValid( ent, buildable, ent->client->cuboidSelection ) ) { if( !g_cheats.integer && !g_instantBuild.integer ) { ent->client->buildTimer += BG_Buildable( buildable, ent->client->cuboidSelection )->buildTime; G_RecalcBuildTimer(ent->client); } ent->client->ps.stats[ STAT_BUILDABLE ] = BA_NONE; } return; } G_TriggerMenu( ent->client->ps.clientNum, menu ); } void slowBlobFire( gentity_t *ent ) { fire_slowBlob( ent, muzzle, forward ); } /* ====================================================================== LEVEL0 ====================================================================== */ /* =============== CheckVenomAttack =============== */ qboolean CheckVenomAttack( gentity_t *ent ) { trace_t tr; gentity_t *traceEnt; int damage = LEVEL0_BITE_DMG; if( ent->client->ps.weaponTime ) return qfalse; // Calculate muzzle point AngleVectors( ent->client->ps.viewangles, forward, right, up ); CalcMuzzlePoint( ent, forward, right, up, muzzle ); G_WideTrace( &tr, ent, LEVEL0_BITE_RANGE, LEVEL0_BITE_WIDTH, LEVEL0_BITE_WIDTH, &traceEnt ); if( traceEnt == NULL ) return qfalse; if( !traceEnt->takedamage ) return qfalse; if( traceEnt->health <= 0 ) return qfalse; // only allow bites to work against buildings as they are constructing if( traceEnt->s.eType == ET_BUILDABLE ) { if( traceEnt->spawned ) return qfalse; if( traceEnt->buildableTeam == TEAM_ALIENS ) return qfalse; } if( traceEnt->client ) { if( traceEnt->client->ps.stats[ STAT_TEAM ] == TEAM_ALIENS ) return qfalse; if( traceEnt->client->ps.stats[ STAT_HEALTH ] <= 0 ) return qfalse; } // send blood impact WideBloodSpurt( ent, traceEnt, &tr ); G_Damage( traceEnt, ent, ent, forward, tr.endpos, damage, DAMAGE_NO_KNOCKBACK, MOD_LEVEL0_BITE ); ent->client->ps.weaponTime += LEVEL0_BITE_REPEAT; return qtrue; } /* ====================================================================== LEVEL1 ====================================================================== */ /* =============== CheckGrabAttack =============== */ void CheckGrabAttack( gentity_t *ent ) { trace_t tr; vec3_t end, dir; gentity_t *traceEnt; // set aiming directions AngleVectors( ent->client->ps.viewangles, forward, right, up ); CalcMuzzlePoint( ent, forward, right, up, muzzle ); if( ent->client->ps.weapon == WP_ALEVEL1 ) VectorMA( muzzle, LEVEL1_GRAB_RANGE, forward, end ); else if( ent->client->ps.weapon == WP_ALEVEL1_UPG ) VectorMA( muzzle, LEVEL1_GRAB_U_RANGE, forward, end ); trap_Trace( &tr, muzzle, NULL, NULL, end, ent->s.number, MASK_SHOT ); if( tr.surfaceFlags & SURF_NOIMPACT ) return; traceEnt = &g_entities[ tr.entityNum ]; if( !traceEnt->takedamage ) return; if( traceEnt->client ) { if( traceEnt->client->ps.stats[ STAT_TEAM ] == TEAM_ALIENS ) return; if( traceEnt->client->ps.stats[ STAT_HEALTH ] <= 0 ) return; if( !( traceEnt->client->ps.stats[ STAT_STATE ] & SS_GRABBED ) ) { AngleVectors( traceEnt->client->ps.viewangles, dir, NULL, NULL ); traceEnt->client->ps.stats[ STAT_VIEWLOCK ] = DirToByte( dir ); //event for client side grab effect G_AddPredictableEvent( ent, EV_LEV1_GRAB, 0 ); } traceEnt->client->ps.stats[ STAT_STATE ] |= SS_GRABBED; if( ent->client->ps.weapon == WP_ALEVEL1 ) traceEnt->client->grabExpiryTime = level.time + LEVEL1_GRAB_TIME; else if( ent->client->ps.weapon == WP_ALEVEL1_UPG ) traceEnt->client->grabExpiryTime = level.time + LEVEL1_GRAB_U_TIME; } } /* =============== poisonCloud =============== */ void poisonCloud( gentity_t *ent ) { int entityList[ MAX_GENTITIES ]; vec3_t range = { LEVEL1_PCLOUD_RANGE, LEVEL1_PCLOUD_RANGE, LEVEL1_PCLOUD_RANGE }; vec3_t mins, maxs; int i, num; gentity_t *humanPlayer; trace_t tr; VectorAdd( ent->client->ps.origin, range, maxs ); VectorSubtract( ent->client->ps.origin, range, mins ); G_UnlaggedOn( ent, ent->client->ps.origin, LEVEL1_PCLOUD_RANGE ); num = trap_EntitiesInBox( mins, maxs, entityList, MAX_GENTITIES ); for( i = 0; i < num; i++ ) { humanPlayer = &g_entities[ entityList[ i ] ]; if( humanPlayer->client && humanPlayer->client->pers.teamSelection == TEAM_HUMANS ) { trap_Trace( &tr, muzzle, NULL, NULL, humanPlayer->s.origin, humanPlayer->s.number, CONTENTS_SOLID ); //can't see target from here if( tr.entityNum == ENTITYNUM_WORLD ) continue; humanPlayer->client->ps.eFlags |= EF_POISONCLOUDED; humanPlayer->client->lastPoisonCloudedTime = level.time; trap_SendServerCommand( humanPlayer->client->ps.clientNum, "poisoncloud" ); } } G_UnlaggedOff( ); } /* ====================================================================== LEVEL2 ====================================================================== */ #define MAX_ZAPS MAX_CLIENTS static zap_t zaps[ MAX_ZAPS ]; /* =============== G_FindZapChainTargets =============== */ static void G_FindZapChainTargets( zap_t *zap ) { gentity_t *ent = zap->targets[ 0 ]; // the source int entityList[ MAX_GENTITIES ]; vec3_t range = { LEVEL2_AREAZAP_CHAIN_RANGE, LEVEL2_AREAZAP_CHAIN_RANGE, LEVEL2_AREAZAP_CHAIN_RANGE }; vec3_t mins, maxs; int i, num; gentity_t *enemy; trace_t tr; float distance; VectorAdd( ent->s.origin, range, maxs ); VectorSubtract( ent->s.origin, range, mins ); num = trap_EntitiesInBox( mins, maxs, entityList, MAX_GENTITIES ); for( i = 0; i < num; i++ ) { enemy = &g_entities[ entityList[ i ] ]; // don't chain to self; noclippers can be listed, don't chain to them either if( enemy == ent || ( enemy->client && enemy->client->noclip ) ) continue; distance = Distance( ent->s.origin, enemy->s.origin ); if ( ( enemy->client && enemy->client->ps.stats[ STAT_TEAM ] == TEAM_HUMANS) || ( enemy->s.eType == ET_BUILDABLE && BG_Buildable( enemy->s.modelindex, NULL )->team == TEAM_HUMANS && ( !BG_Buildable(enemy->s.modelindex,NULL)->cuboid||BG_CuboidAttributes( enemy->s.modelindex )->zappable ) ) && enemy->health > 0 && distance <= LEVEL2_AREAZAP_CHAIN_RANGE ) { // world-LOS check: trace against the world, ignoring other BODY entities trap_Trace( &tr, ent->s.origin, NULL, NULL, enemy->s.origin, ent->s.number, CONTENTS_SOLID ); if( tr.entityNum == ENTITYNUM_NONE ) { zap->targets[ zap->numTargets ] = enemy; zap->distances[ zap->numTargets ] = distance; if( ++zap->numTargets >= LEVEL2_AREAZAP_MAX_TARGETS ) return; } } } } /* =============== G_UpdateZapEffect =============== */ static void G_UpdateZapEffect( zap_t *zap ) { int i; int entityNums[ LEVEL2_AREAZAP_MAX_TARGETS + 1 ]; entityNums[ 0 ] = zap->creator->s.number; for( i = 0; i < zap->numTargets; i++ ) entityNums[ i + 1 ] = zap->targets[ i ]->s.number; BG_PackEntityNumbers( &zap->effectChannel->s, entityNums, zap->numTargets + 1 ); VectorCopy( zap->creator->s.origin, zap->effectChannel->r.currentOrigin ); trap_LinkEntity( zap->effectChannel ); } /* =============== G_CreateNewZap =============== */ static void G_CreateNewZap( gentity_t *creator, gentity_t *target ) { int i; zap_t *zap; for( i = 0; i < MAX_ZAPS; i++ ) { zap = &zaps[ i ]; if( zap->used ) continue; zap->used = qtrue; zap->timeToLive = LEVEL2_AREAZAP_TIME; zap->creator = creator; zap->targets[ 0 ] = target; zap->numTargets = 1; // the zap chains only through living entities if( target->health > 0 ) { G_Damage( target, creator, creator, forward, target->s.origin, LEVEL2_AREAZAP_DMG, DAMAGE_NO_KNOCKBACK | DAMAGE_NO_LOCDAMAGE, MOD_LEVEL2_ZAP ); G_FindZapChainTargets( zap ); for( i = 1; i < zap->numTargets; i++ ) { G_Damage( zap->targets[ i ], target, zap->creator, forward, target->s.origin, LEVEL2_AREAZAP_DMG * ( 1 - pow( (zap->distances[ i ] / LEVEL2_AREAZAP_CHAIN_RANGE ), LEVEL2_AREAZAP_CHAIN_FALLOFF ) ) + 1, DAMAGE_NO_KNOCKBACK | DAMAGE_NO_LOCDAMAGE, MOD_LEVEL2_ZAP ); } } zap->effectChannel = G_Spawn( ); zap->effectChannel->s.eType = ET_LEV2_ZAP_CHAIN; zap->effectChannel->classname = "lev2zapchain"; G_UpdateZapEffect( zap ); return; } } /* =============== G_UpdateZaps =============== */ void G_UpdateZaps( int msec ) { int i, j; zap_t *zap; for( i = 0; i < MAX_ZAPS; i++ ) { zap = &zaps[ i ]; if( !zap->used ) continue; zap->timeToLive -= msec; // first, the disappearance of players is handled immediately in G_ClearPlayerZapEffects() // the deconstruction or gibbing of a directly targeted buildable destroys the whole zap effect if( zap->timeToLive <= 0 || !zap->targets[ 0 ]->inuse ) { G_FreeEntity( zap->effectChannel ); zap->used = qfalse; continue; } // the deconstruction or gibbing of chained buildables destroy the appropriate beams for( j = 1; j < zap->numTargets; j++ ) { if( !zap->targets[ j ]->inuse ) zap->targets[ j-- ] = zap->targets[ --zap->numTargets ]; } G_UpdateZapEffect( zap ); } } /* =============== G_ClearPlayerZapEffects called from G_LeaveTeam() and TeleportPlayer() =============== */ void G_ClearPlayerZapEffects( gentity_t *player ) { int i, j; zap_t *zap; for( i = 0; i < MAX_ZAPS; i++ ) { zap = &zaps[ i ]; if( !zap->used ) continue; // the disappearance of the creator or the first target destroys the whole zap effect if( zap->creator == player || zap->targets[ 0 ] == player ) { G_FreeEntity( zap->effectChannel ); zap->used = qfalse; continue; } // the disappearance of chained players destroy the appropriate beams for( j = 1; j < zap->numTargets; j++ ) { if( zap->targets[ j ] == player ) zap->targets[ j-- ] = zap->targets[ --zap->numTargets ]; } } } /* =============== areaZapFire =============== */ void areaZapFire( gentity_t *ent ) { trace_t tr; gentity_t *traceEnt; G_WideTrace( &tr, ent, LEVEL2_AREAZAP_RANGE, LEVEL2_AREAZAP_WIDTH, LEVEL2_AREAZAP_WIDTH, &traceEnt ); if( traceEnt == NULL ) return; if( ( ( traceEnt->client && traceEnt->client->ps.stats[ STAT_TEAM ] == TEAM_HUMANS ) || ( traceEnt->s.eType == ET_BUILDABLE && BG_Buildable( traceEnt->s.modelindex, NULL )->team == TEAM_HUMANS ) ) && ( !BG_Buildable( traceEnt->s.modelindex, NULL )->cuboid || BG_CuboidAttributes( traceEnt->s.modelindex )->zappable ) ) { G_CreateNewZap( ent, traceEnt ); } } /* ====================================================================== LEVEL3 ====================================================================== */ /* =============== CheckPounceAttack =============== */ qboolean CheckPounceAttack( gentity_t *ent ) { trace_t tr; gentity_t *traceEnt; int damage, timeMax, pounceRange, payload; if( ent->client->pmext.pouncePayload <= 0 ) return qfalse; // In case the goon lands on his target, he get's one shot after landing payload = ent->client->pmext.pouncePayload; if( !( ent->client->ps.pm_flags & PMF_CHARGE ) ) ent->client->pmext.pouncePayload = 0; // Calculate muzzle point AngleVectors( ent->client->ps.viewangles, forward, right, up ); CalcMuzzlePoint( ent, forward, right, up, muzzle ); // Trace from muzzle to see what we hit pounceRange = ent->client->ps.weapon == WP_ALEVEL3 ? LEVEL3_POUNCE_RANGE : LEVEL3_POUNCE_UPG_RANGE; G_WideTrace( &tr, ent, pounceRange, LEVEL3_POUNCE_WIDTH, LEVEL3_POUNCE_WIDTH, &traceEnt ); if( traceEnt == NULL ) return qfalse; // Send blood impact if( traceEnt->takedamage ) WideBloodSpurt( ent, traceEnt, &tr ); if( !traceEnt->takedamage ) return qfalse; // Deal damage timeMax = ent->client->ps.weapon == WP_ALEVEL3 ? LEVEL3_POUNCE_TIME : LEVEL3_POUNCE_TIME_UPG; damage = payload * LEVEL3_POUNCE_DMG / timeMax; ent->client->pmext.pouncePayload = 0; G_Damage( traceEnt, ent, ent, forward, tr.endpos, damage, DAMAGE_NO_LOCDAMAGE, MOD_LEVEL3_POUNCE ); return qtrue; } void bounceBallFire( gentity_t *ent ) { fire_bounceBall( ent, muzzle, forward ); } /* ====================================================================== LEVEL4 ====================================================================== */ /* =============== G_ChargeAttack =============== */ void G_ChargeAttack( gentity_t *ent, gentity_t *victim ) { int damage; int i; vec3_t forward; if( ent->client->ps.stats[ STAT_MISC ] <= 0 || !( ent->client->ps.stats[ STAT_STATE ] & SS_CHARGING ) || ent->client->ps.weaponTime ) return; VectorSubtract( victim->s.origin, ent->s.origin, forward ); VectorNormalize( forward ); if( !victim->takedamage ) return; // For buildables, track the last MAX_TRAMPLE_BUILDABLES_TRACKED buildables // hit, and do not do damage if the current buildable is in that list // in order to prevent dancing over stuff to kill it very quickly if( !victim->client ) { for( i = 0; i < MAX_TRAMPLE_BUILDABLES_TRACKED; i++ ) { if( ent->client->trampleBuildablesHit[ i ] == victim - g_entities ) return; } ent->client->trampleBuildablesHit[ ent->client->trampleBuildablesHitPos++ % MAX_TRAMPLE_BUILDABLES_TRACKED ] = victim - g_entities; } WideBloodSpurt( ent, victim, NULL ); damage = LEVEL4_TRAMPLE_DMG * ent->client->ps.stats[ STAT_MISC ] / LEVEL4_TRAMPLE_DURATION; G_Damage( victim, ent, ent, forward, victim->s.origin, damage, DAMAGE_NO_LOCDAMAGE, MOD_LEVEL4_TRAMPLE ); ent->client->ps.weaponTime += LEVEL4_TRAMPLE_REPEAT; } /* =============== G_CrushAttack Should only be called if there was an impact between a tyrant and another player =============== */ void G_CrushAttack( gentity_t *ent, gentity_t *victim ) { vec3_t dir; float jump; int damage; if( !victim->takedamage || ent->client->ps.origin[ 2 ] + ent->r.mins[ 2 ] < victim->s.origin[ 2 ] + victim->r.maxs[ 2 ] || ( victim->client && victim->client->ps.groundEntityNum == ENTITYNUM_NONE ) ) return; // Deal velocity based damage to target jump = BG_Class( ent->client->ps.stats[ STAT_CLASS ] )->jumpMagnitude; damage = ( ent->client->pmext.fallVelocity + jump ) * -LEVEL4_CRUSH_DAMAGE_PER_V; if( damage < 0 ) damage = 0; // Players also get damaged periodically if( victim->client && ent->client->lastCrushTime + LEVEL4_CRUSH_REPEAT < level.time ) { ent->client->lastCrushTime = level.time; damage += LEVEL4_CRUSH_DAMAGE; } if( damage < 1 ) return; // Crush the victim over a period of time VectorSubtract( victim->s.origin, ent->client->ps.origin, dir ); G_Damage( victim, ent, ent, dir, victim->s.origin, damage, DAMAGE_NO_LOCDAMAGE, MOD_LEVEL4_CRUSH ); } void rantBombFire( gentity_t *ent ) { fire_rantBomb( ent, muzzle, forward ); } //====================================================================== /* =============== CalcMuzzlePoint set muzzle location relative to pivoting eye =============== */ void CalcMuzzlePoint( gentity_t *ent, vec3_t forward, vec3_t right, vec3_t up, vec3_t muzzlePoint ) { vec3_t normal; VectorCopy( ent->client->ps.origin, muzzlePoint ); BG_GetClientNormal( &ent->client->ps, normal ); VectorMA( muzzlePoint, ent->client->ps.viewheight, normal, muzzlePoint ); VectorMA( muzzlePoint, 1, forward, muzzlePoint ); // snap to integer coordinates for more efficient network bandwidth usage SnapVector( muzzlePoint ); } /* =============== FireWeapon3 =============== */ void FireWeapon3( gentity_t *ent ) { if( ent->client ) { // set aiming directions AngleVectors( ent->client->ps.viewangles, forward, right, up ); CalcMuzzlePoint( ent, forward, right, up, muzzle ); } else { AngleVectors( ent->s.angles2, forward, right, up ); VectorCopy( ent->s.pos.trBase, muzzle ); } // fire the specific weapon switch( ent->s.weapon ) { case WP_ALEVEL3_UPG: bounceBallFire( ent ); break; case WP_ALEVEL4: rantBombFire( ent ); break; case WP_ABUILD2: slowBlobFire( ent ); break; default: break; } } /* =============== FireWeapon2 =============== */ void FireWeapon2( gentity_t *ent ) { if( ent->client ) { // set aiming directions AngleVectors( ent->client->ps.viewangles, forward, right, up ); CalcMuzzlePoint( ent, forward, right, up, muzzle ); } else { AngleVectors( ent->s.angles2, forward, right, up ); VectorCopy( ent->s.pos.trBase, muzzle ); } // fire the specific weapon switch( ent->s.weapon ) { case WP_ALEVEL1_UPG: poisonCloud( ent ); break; case WP_LUCIFER_CANNON: LCChargeFire( ent, qtrue ); break; case WP_ALEVEL2_UPG: areaZapFire( ent ); break; case WP_ABUILD: case WP_ABUILD2: case WP_HBUILD: cancelBuildFire( ent ); break; default: break; } } /* =============== FireWeapon =============== */ void FireWeapon( gentity_t *ent ) { if( ent->client ) { // set aiming directions AngleVectors( ent->client->ps.viewangles, forward, right, up ); CalcMuzzlePoint( ent, forward, right, up, muzzle ); } else { AngleVectors( ent->turretAim, forward, right, up ); VectorCopy( ent->s.pos.trBase, muzzle ); } // fire the specific weapon switch( ent->s.weapon ) { case WP_ALEVEL1: meleeAttack( ent, LEVEL1_CLAW_RANGE, LEVEL1_CLAW_WIDTH, LEVEL1_CLAW_WIDTH, LEVEL1_CLAW_DMG, MOD_LEVEL1_CLAW ); break; case WP_ALEVEL1_UPG: meleeAttack( ent, LEVEL1_CLAW_U_RANGE, LEVEL1_CLAW_WIDTH, LEVEL1_CLAW_WIDTH, LEVEL1_CLAW_DMG, MOD_LEVEL1_CLAW ); break; case WP_ALEVEL3: meleeAttack( ent, LEVEL3_CLAW_RANGE, LEVEL3_CLAW_WIDTH, LEVEL3_CLAW_WIDTH, LEVEL3_CLAW_DMG, MOD_LEVEL3_CLAW ); break; case WP_ALEVEL3_UPG: meleeAttack( ent, LEVEL3_CLAW_UPG_RANGE, LEVEL3_CLAW_WIDTH, LEVEL3_CLAW_WIDTH, LEVEL3_CLAW_DMG, MOD_LEVEL3_CLAW ); break; case WP_ALEVEL2: meleeAttack( ent, LEVEL2_CLAW_RANGE, LEVEL2_CLAW_WIDTH, LEVEL2_CLAW_WIDTH, LEVEL2_CLAW_DMG, MOD_LEVEL2_CLAW ); break; case WP_ALEVEL2_UPG: meleeAttack( ent, LEVEL2_CLAW_U_RANGE, LEVEL2_CLAW_WIDTH, LEVEL2_CLAW_WIDTH, LEVEL2_CLAW_DMG, MOD_LEVEL2_CLAW ); break; case WP_ALEVEL4: meleeAttack( ent, LEVEL4_CLAW_RANGE, LEVEL4_CLAW_WIDTH, LEVEL4_CLAW_HEIGHT, LEVEL4_CLAW_DMG, MOD_LEVEL4_CLAW ); break; case WP_BLASTER: blasterFire( ent ); break; case WP_MACHINEGUN: bulletFire( ent, RIFLE_SPREAD, RIFLE_DMG, MOD_MACHINEGUN ); break; case WP_SHOTGUN: shotgunFire( ent ); break; case WP_CHAINGUN: bulletFire( ent, CHAINGUN_SPREAD, CHAINGUN_DMG, MOD_CHAINGUN ); break; case WP_FLAMER: flamerFire( ent ); break; case WP_PULSE_RIFLE: pulseRifleFire( ent ); break; case WP_MASS_DRIVER: massDriverFire( ent ); break; case WP_LUCIFER_CANNON: LCChargeFire( ent, qfalse ); break; case WP_LAS_GUN: lasGunFire( ent ); break; case WP_PAIN_SAW: painSawFire( ent ); break; case WP_GRENADE: throwGrenade( ent ); break; case WP_LOCKBLOB_LAUNCHER: lockBlobLauncherFire( ent ); break; case WP_HIVE: hiveFire( ent ); break; case WP_TESLAGEN: teslaFire( ent ); break; case WP_MGTURRET: bulletFire( ent, MGTURRET_SPREAD, MGTURRET_DMG, MOD_MGTURRET ); break; case WP_ABUILD: case WP_ABUILD2: buildFire( ent, MN_A_BUILD ); break; case WP_HBUILD: buildFire( ent, MN_H_BUILD ); break; default: break; } }