/* =========================================================================== Copyright (C) 1999-2005 Id Software, Inc. Copyright (C) 2000-2006 Tim Angus 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 ) { int i; playerState_t *ps = &ent->client->ps; if( !ent ) return; // 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; } ps->pm_flags |= PMF_WEAPON_SWITCH; if( weapon == WP_NONE || !BG_InventoryContainsWeapon( weapon, ps->stats ) ) { // switch to the first non blaster weapon for( i = WP_NONE + 1; i < WP_NUM_WEAPONS; i++ ) { if( i == WP_BLASTER ) continue; if( BG_InventoryContainsWeapon( i, ps->stats ) ) { ps->persistant[ PERS_NEWWEAPON ] = i; break; } } // only got the blaster to switch to if( i == WP_NUM_WEAPONS ) ps->persistant[ PERS_NEWWEAPON ] = WP_BLASTER; } else ps->persistant[ PERS_NEWWEAPON ] = weapon; // force this here to prevent flamer effect from continuing ps->generic1 = WPM_NOTFIRING; ps->weapon = ent->client->ps.persistant[ PERS_NEWWEAPON ]; } /* ================= G_GiveClientMaxAmmo ================= */ void G_GiveClientMaxAmmo( gentity_t *ent, qboolean buyingEnergyAmmo ) { int i; int maxAmmo, maxClips; qboolean weaponType, restoredAmmo = qfalse; for( i = WP_NONE + 1; i < WP_NUM_WEAPONS; i++ ) { if( buyingEnergyAmmo ) weaponType = BG_FindUsesEnergyForWeapon( i ); else weaponType = !BG_FindUsesEnergyForWeapon( i ); if( BG_InventoryContainsWeapon( i, ent->client->ps.stats ) && weaponType && !BG_FindInfinteAmmoForWeapon( i ) && !BG_WeaponIsFull( i, ent->client->ps.stats, ent->client->ps.ammo, ent->client->ps.clips ) ) { BG_FindAmmoForWeapon( i, &maxAmmo, &maxClips ); if( buyingEnergyAmmo ) { G_AddEvent( ent, EV_RPTUSE_SOUND, 0 ); if( BG_InventoryContainsUpgrade( UP_BATTPACK, ent->client->ps.stats ) ) maxAmmo = (int)( (float)maxAmmo * BATTPACK_MODIFIER ); } ent->client->ps.ammo = maxAmmo; ent->client->ps.clips = maxClips; restoredAmmo = qtrue; } } if( restoredAmmo ) G_ForceWeaponChange( ent, ent->client->ps.weapon ); } /* ================ 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, -width ); VectorSet( maxs, width, width, width ); mins[ 2 ] -= height - width; *target = NULL; if( !ent->client ) return; // Set aiming directions VectorMA( muzzle, range, forward, end ); G_UnlaggedOn( muzzle, range ); // Trace against entities trap_Trace( tr, muzzle, mins, maxs, end, ent->s.number, CONTENTS_BODY ); // If we started in a solid that means someone is within our muzzle box, // the trace didn't give us the entity number though so do a trace // from the entity origin to the muzzle if( tr->startsolid ) { trap_Trace( tr, ent->client->ps.origin, mins, maxs, muzzle, ent->s.number, CONTENTS_BODY ); if( tr->entityNum != ENTITYNUM_NONE ) *target = &g_entities[ tr->entityNum ]; } else 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, 0, CONTENTS_SOLID ); if( tr->fraction < 1.0f ) *target = NULL; } 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 || !victim->client ) 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 || !victim->client ) return; if( tr ) VectorSubtract( tr->endpos, victim->client->ps.origin, normal ); else VectorSubtract( attacker->client->ps.origin, victim->client->ps.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->client->ps.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( 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->client ) { 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() & 255; // seed for spread pattern tent->s.otherEntityNum = ent->s.number; G_UnlaggedOn( 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 hitPoints[ MDRIVER_MAX_HITS ], hitNormals[ MDRIVER_MAX_HITS ], origin, originToEnd, muzzleToEnd, muzzleToOrigin, end; gentity_t *traceEnts[ MDRIVER_MAX_HITS ], *traceEnt, *tent; float length_offset; int i, hits = 0, skipent; // loop through all entities hit by a line trace G_UnlaggedOn( muzzle, 8192 * 16 ); VectorMA( muzzle, 8192 * 16, forward, end ); VectorCopy( muzzle, tr.endpos ); skipent = ent->s.number; for( i = 0; i < MDRIVER_MAX_HITS && skipent != ENTITYNUM_NONE; i++ ) { trap_Trace( &tr, tr.endpos, NULL, NULL, end, skipent, MASK_SHOT ); if( tr.surfaceFlags & SURF_NOIMPACT ) break; traceEnt = &g_entities[ tr.entityNum ]; skipent = tr.entityNum; if( traceEnt->s.eType == ET_PLAYER ) { // don't travel through teammates with FF off if( OnSameTeam( ent, traceEnt ) && ( !g_friendlyFire.integer || !g_friendlyFireHumans.integer ) ) skipent = ENTITYNUM_NONE; } else if( traceEnt->s.eType == ET_BUILDABLE ) { // don't travel through team buildables with FF off if( traceEnt->biteam == ent->client->pers.teamSelection && !g_friendlyBuildableFire.integer ) skipent = ENTITYNUM_NONE; } else skipent = ENTITYNUM_NONE; // save the hit entity, position, and normal VectorCopy( tr.endpos, hitPoints[ hits ] ); VectorCopy( tr.plane.normal, hitNormals[ hits ] ); SnapVectorNormal( hitPoints[ hits ], tr.plane.normal ); traceEnts[ hits++ ] = traceEnt; } // originate trail line from the gun tip, not the head! VectorCopy( muzzle, origin ); VectorMA( origin, -6, up, origin ); VectorMA( origin, 4, right, origin ); VectorMA( origin, 24, forward, origin ); // save the final position VectorCopy( tr.endpos, end ); VectorSubtract( end, origin, originToEnd ); VectorNormalize( originToEnd ); // origin is further in front than muzzle, need to adjust length VectorSubtract( origin, muzzle, muzzleToOrigin ); VectorSubtract( end, muzzle, muzzleToEnd ); VectorNormalize( muzzleToEnd ); length_offset = DotProduct( muzzleToEnd, muzzleToOrigin ); // now that the trace is finished, we know where we stopped and can generate // visually correct impact locations for( i = 0; i < hits; i++ ) { vec3_t muzzleToPos; float length; // restore saved values VectorCopy( hitPoints[ i ], tr.endpos ); VectorCopy( hitNormals[ i ], tr.plane.normal ); traceEnt = traceEnts[ i ]; // compute the visually correct impact point VectorSubtract( tr.endpos, muzzle, muzzleToPos ); length = VectorLength( muzzleToPos ) - length_offset; VectorMA( origin, length, originToEnd, tr.endpos ); // send impact if( traceEnt->takedamage && traceEnt->client ) BloodSpurt( ent, traceEnt, &tr ); else if( i < hits - 1 ) { 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 ); } // create an event entity for the trail, doubles as an impact event SnapVectorNormal( end, tr.plane.normal ); tent = G_TempEntity( end, EV_MASS_DRIVER ); tent->s.eventParm = DirToByte( tr.plane.normal ); tent->s.weapon = ent->s.weapon; tent->s.generic1 = ent->s.generic1; // weaponMode VectorCopy( origin, tent->s.origin2 ); G_UnlaggedOff( ); } /* ====================================================================== LOCKBLOB ====================================================================== */ void lockBlobLauncherFire( gentity_t *ent ) { gentity_t *m; m = fire_lockblob( ent, muzzle, forward ); // VectorAdd( m->s.pos.trDelta, ent->client->ps.velocity, m->s.pos.trDelta ); // "real" physics } /* ====================================================================== HIVE ====================================================================== */ void hiveFire( gentity_t *ent ) { gentity_t *m; m = fire_hive( ent, muzzle, forward ); // VectorAdd( m->s.pos.trDelta, ent->client->ps.velocity, m->s.pos.trDelta ); // "real" physics } /* ====================================================================== BLASTER PISTOL ====================================================================== */ void blasterFire( gentity_t *ent ) { gentity_t *m; m = fire_blaster( ent, muzzle, forward ); // VectorAdd( m->s.pos.trDelta, ent->client->ps.velocity, m->s.pos.trDelta ); // "real" physics } /* ====================================================================== PULSE RIFLE ====================================================================== */ void pulseRifleFire( gentity_t *ent ) { gentity_t *m; m = fire_pulseRifle( ent, muzzle, forward ); // VectorAdd( m->s.pos.trDelta, ent->client->ps.velocity, m->s.pos.trDelta ); // "real" physics } /* ====================================================================== FLAME THROWER ====================================================================== */ void flamerFire( gentity_t *ent ) { gentity_t *m; m = fire_flamer( ent, muzzle, forward ); } /* ====================================================================== GRENADE ====================================================================== */ void throwGrenade( gentity_t *ent ) { gentity_t *m; m = 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( 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->client ) { 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->client ) { 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 ) { gentity_t *m; if( secondary && ent->client->ps.stats[ STAT_MISC ] <= 0 ) { m = fire_luciferCannon( ent, muzzle, forward, LCANNON_SECONDARY_DAMAGE, LCANNON_SECONDARY_RADIUS, LCANNON_SECONDARY_SPEED ); ent->client->ps.stats[ STAT_MISC2 ] = LCANNON_REPEAT; } else { m = fire_luciferCannon( ent, muzzle, forward, ent->client->ps.stats[ STAT_MISC ], LCANNON_RADIUS, LCANNON_SPEED ); ent->client->ps.stats[ STAT_MISC2 ] = LCANNON_CHARGEREPEAT - ( level.time - ent->client->lcannonStartTime ); } ent->client->ps.stats[ STAT_MISC ] = 0; } /* ====================================================================== TESLA GENERATOR ====================================================================== */ void teslaFire( gentity_t *ent ) { trace_t tr; vec3_t end; gentity_t *traceEnt, *tent; VectorMA( muzzle, TESLAGEN_RANGE, forward, end ); trap_Trace( &tr, muzzle, NULL, NULL, end, ent->s.number, MASK_SHOT ); if( tr.entityNum == ENTITYNUM_NONE ) return; traceEnt = &g_entities[ tr.entityNum ]; if( !traceEnt->client ) return; if( traceEnt->client && traceEnt->client->ps.stats[ STAT_PTEAM ] != PTE_ALIENS ) return; //so the client side knows ent->s.eFlags |= EF_FIRING; if( traceEnt->takedamage ) { G_Damage( traceEnt, ent, ent, forward, tr.endpos, TESLAGEN_DMG, 0, MOD_TESLAGEN ); } // snap the endpos to integers to save net bandwidth, but nudged towards the line SnapVectorTowards( tr.endpos, muzzle ); // send railgun beam effect tent = G_TempEntity( tr.endpos, EV_TESLATRAIL ); VectorCopy( muzzle, tent->s.origin2 ); tent->s.generic1 = ent->s.number; //src tent->s.clientNum = traceEnt->s.number; //dest // move origin a bit to come closer to the drawn gun muzzle VectorMA( tent->s.origin2, 28, up, tent->s.origin2 ); } /* ====================================================================== BUILD GUN ====================================================================== */ /* =============== cancelBuildFire =============== */ void cancelBuildFire( gentity_t *ent ) { vec3_t forward, end; trace_t tr; gentity_t *traceEnt; int bHealth; if( ent->client->ps.stats[ STAT_BUILDABLE ] != BA_NONE ) { ent->client->ps.stats[ STAT_BUILDABLE ] = BA_NONE; return; } //repair buildable if( ent->client->ps.stats[ STAT_PTEAM ] == PTE_HUMANS ) { AngleVectors( ent->client->ps.viewangles, forward, NULL, NULL ); VectorMA( ent->client->ps.origin, 100, forward, end ); trap_Trace( &tr, ent->client->ps.origin, NULL, NULL, end, ent->s.number, MASK_PLAYERSOLID ); traceEnt = &g_entities[ tr.entityNum ]; if( tr.fraction < 1.0 && ( traceEnt->s.eType == ET_BUILDABLE ) && ( traceEnt->biteam == ent->client->ps.stats[ STAT_PTEAM ] ) && ( ( ent->client->ps.weapon >= WP_HBUILD2 ) && ( ent->client->ps.weapon <= WP_HBUILD ) ) && traceEnt->spawned && traceEnt->health > 0 ) { if( ent->client->ps.stats[ STAT_MISC ] > 0 ) { G_AddEvent( ent, EV_BUILD_DELAY, ent->client->ps.clientNum ); return; } bHealth = BG_FindHealthForBuildable( traceEnt->s.modelindex ); traceEnt->health += HBUILD_HEALRATE; if( traceEnt->health > bHealth ) traceEnt->health = bHealth; if( traceEnt->health == bHealth ) G_AddEvent( ent, EV_BUILD_REPAIRED, 0 ); else G_AddEvent( ent, EV_BUILD_REPAIR, 0 ); } } else 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->ps.stats[ STAT_MISC ] > 0 ) { G_AddEvent( ent, EV_BUILD_DELAY, ent->client->ps.clientNum ); return; } if( G_BuildIfValid( ent, buildable ) ) { if( g_cheats.integer ) { ent->client->ps.stats[ STAT_MISC ] = 0; } else { ent->client->ps.stats[ STAT_MISC ] += BG_FindBuildTimeForBuildable( buildable ); } ent->client->ps.stats[ STAT_BUILDABLE ] = BA_NONE; // don't want it bigger than 32k if( ent->client->ps.stats[ STAT_MISC ] > 30000 ) ent->client->ps.stats[ STAT_MISC ] = 30000; } return; } G_TriggerMenu( ent->client->ps.clientNum, menu ); } void slowBlobFire( gentity_t *ent ) { gentity_t *m; m = fire_slowBlob( ent, muzzle, forward ); // VectorAdd( m->s.pos.trDelta, ent->client->ps.velocity, m->s.pos.trDelta ); // "real" physics } /* ====================================================================== 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->client && !traceEnt->s.eType == ET_BUILDABLE ) 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->biteam == BIT_ALIENS ) return qfalse; } if( traceEnt->client ) { if( traceEnt->client->ps.stats[ STAT_PTEAM ] == PTE_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 ); VectorMA( muzzle, LEVEL1_GRAB_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_PTEAM ] == PTE_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; } else if( traceEnt->s.eType == ET_BUILDABLE && traceEnt->s.modelindex == BA_H_MGTURRET ) { if( !traceEnt->lev1Grabbed ) G_AddPredictableEvent( ent, EV_LEV1_GRAB, 0 ); traceEnt->lev1Grabbed = qtrue; traceEnt->lev1GrabTime = level.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->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->ps.stats[ STAT_PTEAM ] == PTE_HUMANS ) { trap_Trace( &tr, muzzle, NULL, NULL, humanPlayer->s.origin, humanPlayer->s.number, MASK_SHOT ); //can't see target from here if( tr.entityNum == ENTITYNUM_WORLD ) continue; if( !( humanPlayer->client->ps.stats[ STAT_STATE ] & SS_POISONCLOUDED ) ) { humanPlayer->client->ps.stats[ STAT_STATE ] |= SS_POISONCLOUDED; humanPlayer->client->lastPoisonCloudedTime = level.time; humanPlayer->client->lastPoisonCloudedClient = ent; trap_SendServerCommand( humanPlayer->client->ps.clientNum, "poisoncloud" ); } } } G_UnlaggedOff( ); } /* ====================================================================== LEVEL2 ====================================================================== */ static vec3_t sortReference; static int QDECL G_SortDistance( const void *a, const void *b ) { gentity_t *aent, *bent; float adist, bdist; aent = &g_entities[ *(int *)a ]; bent = &g_entities[ *(int *)b ]; adist = Distance( sortReference, aent->s.origin ); bdist = Distance( sortReference, bent->s.origin ); if( adist > bdist ) return -1; else if( adist < bdist ) return 1; else return 0; } /* =============== G_UpdateZaps =============== */ void G_UpdateZaps( gentity_t *ent ) { int entityList[ MAX_GENTITIES ]; int hitList[ MAX_GENTITIES ]; vec3_t range = { LEVEL2_AREAZAP_CUTOFF, LEVEL2_AREAZAP_CUTOFF, LEVEL2_AREAZAP_CUTOFF }; vec3_t mins, maxs; int i, j; int hit = 0; int num; gentity_t *enemy; gentity_t *effect; trace_t tr; qboolean alreadyTargeted = qfalse; int damage; if( !ent->zapping || ent->health <= 0 ) return; VectorScale( range, 1.0f / M_ROOT3, range ); 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 ] ]; if( ( ( enemy->client && enemy->client->ps.stats[ STAT_PTEAM ] == PTE_HUMANS ) || ( enemy->s.eType == ET_BUILDABLE && BG_FindTeamForBuildable( enemy->s.modelindex ) == BIT_HUMANS ) ) && enemy->health > 0 ) { alreadyTargeted = qfalse; for( j = 0; j < LEVEL2_AREAZAP_MAX_TARGETS; j++ ) { if( ent->zapTargets[ j ] == entityList[ i ] ) { alreadyTargeted = qtrue; break; } } if( !alreadyTargeted && Distance( ent->s.origin, enemy->s.origin ) > LEVEL2_AREAZAP_RANGE ) { continue; } trap_Trace( &tr, ent->s.origin, NULL, NULL, enemy->s.origin, ent-g_entities, MASK_SHOT ); if( tr.entityNum == enemy-g_entities ) hitList[ hit++ ] = tr.entityNum; } } for( i = 0; i < LEVEL2_AREAZAP_MAX_TARGETS; i++ ) ent->zapTargets[ i ] = -1; if( !hit ) return; ent->zapDmg += ( (float)( level.time - level.previousTime ) / 1000.0f ) * LEVEL2_AREAZAP_DMG; damage = (int)ent->zapDmg; // wait until we've accumulated enough damage for bsuit to take at // least 1 HP if( damage < 5 ) damage = 0; else ent->zapDmg -= (int)damage; VectorCopy( ent->s.origin, sortReference ); qsort( hitList, hit, sizeof( int ), G_SortDistance ); effect = G_TempEntity( ent->s.origin, EV_LEV2_ZAP ); effect->s.misc = ent-g_entities; effect->s.time = effect->s.time2 = effect->s.constantLight = -1; for( i = 0; i < hit; i++ ) { if( i >= LEVEL2_AREAZAP_MAX_TARGETS ) break; ent->zapTargets[ i ] = hitList[ i ]; enemy = &g_entities[ hitList[ i ] ]; if( damage > 0 ) { G_Damage( enemy, ent, ent, NULL, enemy->s.origin, damage, DAMAGE_NO_KNOCKBACK | DAMAGE_NO_LOCDAMAGE, MOD_LEVEL2_ZAP ); } switch( i ) { case 0: effect->s.time = hitList[ i ]; break; case 1: effect->s.time2 = hitList[ i ]; break; case 2: effect->s.constantLight = hitList[ i ]; break; default: break; } } } /* ====================================================================== LEVEL3 ====================================================================== */ /* =============== CheckPounceAttack =============== */ qboolean CheckPounceAttack( gentity_t *ent ) { trace_t tr; gentity_t *traceEnt; int damage, timeMax, 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; if( ent->client->ps.weaponTime > 0 ) return qfalse; // 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 G_WideTrace( &tr, ent, LEVEL3_POUNCE_RANGE, 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 ); ent->client->ps.weaponTime += LEVEL3_POUNCE_REPEAT; return qtrue; } void bounceBallFire( gentity_t *ent ) { gentity_t *m; m = fire_bounceBall( ent, muzzle, forward ); // VectorAdd( m->s.pos.trDelta, ent->client->ps.velocity, m->s.pos.trDelta ); // "real" physics } /* ====================================================================== LEVEL4 ====================================================================== */ /* =============== G_ChargeAttack =============== */ void G_ChargeAttack( gentity_t *ent, gentity_t *victim ) { int damage; vec3_t forward, normal; if( ent->client->ps.stats[ STAT_MISC ] <= 0 || !ent->client->charging ) return; VectorSubtract( victim->s.origin, ent->s.origin, forward ); VectorNormalize( forward ); VectorNegate( forward, normal ); if( !victim->takedamage ) return; WideBloodSpurt( ent, victim, NULL ); damage = (int)( ( (float)ent->client->ps.stats[ STAT_MISC ] / (float)LEVEL4_TRAMPLE_CHARGE_MAX ) * LEVEL4_TRAMPLE_DMG ); G_Damage( victim, ent, ent, forward, victim->s.origin, damage, 0, MOD_LEVEL4_TRAMPLE ); if( !victim->client ) ent->client->ps.stats[ STAT_MISC ] = 0; } /* =============== 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, float sec ) { 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_FindJumpMagnitudeForClass( ent->client->ps.stats[ STAT_PCLASS ] ); 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 ); } //====================================================================== /* =============== 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_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_ABUILD: case WP_ABUILD2: case WP_HBUILD: case WP_HBUILD2: 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: case WP_ALEVEL1_UPG: meleeAttack( ent, LEVEL1_CLAW_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_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: case WP_HBUILD2: buildFire( ent, MN_H_BUILD ); break; default: break; } }