g_combat.c

quakeIII源码这个不用我多说吧

/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.

This file is part of Quake III Arena source code.

Quake III Arena source code 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.

Quake III Arena source code 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 Foobar; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/
//
// g_combat.c

#include "g_local.h"


/*
============
ScorePlum
============
*/
void ScorePlum( gentity_t *ent, vec3_t origin, int score ) {
	gentity_t *plum;

	plum = G_TempEntity( origin, EV_SCOREPLUM );
	// only send this temp entity to a single client
	plum->r.svFlags |= SVF_SINGLECLIENT;
	plum->r.singleClient = ent->s.number;
	//
	plum->s.otherEntityNum = ent->s.number;
	plum->s.time = score;
}

/*
============
AddScore

Adds score to both the client and his team
============
*/
void AddScore( gentity_t *ent, vec3_t origin, int score ) {
	if ( !ent->client ) {
		return;
	}
	// no scoring during pre-match warmup
	if ( level.warmupTime ) {
		return;
	}
	// show score plum
	ScorePlum(ent, origin, score);
	//
	ent->client->ps.persistant[PERS_SCORE] += score;
	if ( g_gametype.integer == GT_TEAM )
		level.teamScores[ ent->client->ps.persistant[PERS_TEAM] ] += score;
	CalculateRanks();
}

/*
=================
TossClientItems

Toss the weapon and powerups for the killed player
=================
*/
void TossClientItems( gentity_t *self ) {
	gitem_t		*item;
	int			weapon;
	float		angle;
	int			i;
	gentity_t	*drop;

	// drop the weapon if not a gauntlet or machinegun
	weapon = self->s.weapon;

	// make a special check to see if they are changing to a new
	// weapon that isn't the mg or gauntlet.  Without this, a client
	// can pick up a weapon, be killed, and not drop the weapon because
	// their weapon change hasn't completed yet and they are still holding the MG.
	if ( weapon == WP_MACHINEGUN || weapon == WP_GRAPPLING_HOOK ) {
		if ( self->client->ps.weaponstate == WEAPON_DROPPING ) {
			weapon = self->client->pers.cmd.weapon;
		}
		if ( !( self->client->ps.stats[STAT_WEAPONS] & ( 1 << weapon ) ) ) {
			weapon = WP_NONE;
		}
	}

	if ( weapon > WP_MACHINEGUN && weapon != WP_GRAPPLING_HOOK && 
		self->client->ps.ammo[ weapon ] ) {
		// find the item type for this weapon
		item = BG_FindItemForWeapon( weapon );

		// spawn the item
		Drop_Item( self, item, 0 );
	}

	// drop all the powerups if not in teamplay
	if ( g_gametype.integer != GT_TEAM ) {
		angle = 45;
		for ( i = 1 ; i < PW_NUM_POWERUPS ; i++ ) {
			if ( self->client->ps.powerups[ i ] > level.time ) {
				item = BG_FindItemForPowerup( i );
				if ( !item ) {
					continue;
				}
				drop = Drop_Item( self, item, angle );
				// decide how many seconds it has left
				drop->count = ( self->client->ps.powerups[ i ] - level.time ) / 1000;
				if ( drop->count < 1 ) {
					drop->count = 1;
				}
				angle += 45;
			}
		}
	}
}

#ifdef MISSIONPACK

/*
=================
TossClientCubes
=================
*/
extern gentity_t	*neutralObelisk;

void TossClientCubes( gentity_t *self ) {
	gitem_t		*item;
	gentity_t	*drop;
	vec3_t		velocity;
	vec3_t		angles;
	vec3_t		origin;

	self->client->ps.generic1 = 0;

	// this should never happen but we should never
	// get the server to crash due to skull being spawned in
	if (!G_EntitiesFree()) {
		return;
	}

	if( self->client->sess.sessionTeam == TEAM_RED ) {
		item = BG_FindItem( "Red Cube" );
	}
	else {
		item = BG_FindItem( "Blue Cube" );
	}

	angles[YAW] = (float)(level.time % 360);
	angles[PITCH] = 0;	// always forward
	angles[ROLL] = 0;

	AngleVectors( angles, velocity, NULL, NULL );
	VectorScale( velocity, 150, velocity );
	velocity[2] += 200 + crandom() * 50;

	if( neutralObelisk ) {
		VectorCopy( neutralObelisk->s.pos.trBase, origin );
		origin[2] += 44;
	} else {
		VectorClear( origin ) ;
	}

	drop = LaunchItem( item, origin, velocity );

	drop->nextthink = level.time + g_cubeTimeout.integer * 1000;
	drop->think = G_FreeEntity;
	drop->spawnflags = self->client->sess.sessionTeam;
}


/*
=================
TossClientPersistantPowerups
=================
*/
void TossClientPersistantPowerups( gentity_t *ent ) {
	gentity_t	*powerup;

	if( !ent->client ) {
		return;
	}

	if( !ent->client->persistantPowerup ) {
		return;
	}

	powerup = ent->client->persistantPowerup;

	powerup->r.svFlags &= ~SVF_NOCLIENT;
	powerup->s.eFlags &= ~EF_NODRAW;
	powerup->r.contents = CONTENTS_TRIGGER;
	trap_LinkEntity( powerup );

	ent->client->ps.stats[STAT_PERSISTANT_POWERUP] = 0;
	ent->client->persistantPowerup = NULL;
}
#endif


/*
==================
LookAtKiller
==================
*/
void LookAtKiller( gentity_t *self, gentity_t *inflictor, gentity_t *attacker ) {
	vec3_t		dir;
	vec3_t		angles;

	if ( attacker && attacker != self ) {
		VectorSubtract (attacker->s.pos.trBase, self->s.pos.trBase, dir);
	} else if ( inflictor && inflictor != self ) {
		VectorSubtract (inflictor->s.pos.trBase, self->s.pos.trBase, dir);
	} else {
		self->client->ps.stats[STAT_DEAD_YAW] = self->s.angles[YAW];
		return;
	}

	self->client->ps.stats[STAT_DEAD_YAW] = vectoyaw ( dir );

	angles[YAW] = vectoyaw ( dir );
	angles[PITCH] = 0; 
	angles[ROLL] = 0;
}

/*
==================
GibEntity
==================
*/
void GibEntity( gentity_t *self, int killer ) {
	gentity_t *ent;
	int i;

	//if this entity still has kamikaze
	if (self->s.eFlags & EF_KAMIKAZE) {
		// check if there is a kamikaze timer around for this owner
		for (i = 0; i < MAX_GENTITIES; i++) {
			ent = &g_entities[i];
			if (!ent->inuse)
				continue;
			if (ent->activator != self)
				continue;
			if (strcmp(ent->classname, "kamikaze timer"))
				continue;
			G_FreeEntity(ent);
			break;
		}
	}
	G_AddEvent( self, EV_GIB_PLAYER, killer );
	self->takedamage = qfalse;
	self->s.eType = ET_INVISIBLE;
	self->r.contents = 0;
}

/*
==================
body_die
==================
*/
void body_die( gentity_t *self, gentity_t *inflictor, gentity_t *attacker, int damage, int meansOfDeath ) {
	if ( self->health > GIB_HEALTH ) {
		return;
	}
	if ( !g_blood.integer ) {
		self->health = GIB_HEALTH+1;
		return;
	}

	GibEntity( self, 0 );
}


// these are just for logging, the client prints its own messages
char	*modNames[] = {
	"MOD_UNKNOWN",
	"MOD_SHOTGUN",
	"MOD_GAUNTLET",
	"MOD_MACHINEGUN",
	"MOD_GRENADE",
	"MOD_GRENADE_SPLASH",
	"MOD_ROCKET",
	"MOD_ROCKET_SPLASH",
	"MOD_PLASMA",
	"MOD_PLASMA_SPLASH",
	"MOD_RAILGUN",
	"MOD_LIGHTNING",
	"MOD_BFG",
	"MOD_BFG_SPLASH",
	"MOD_WATER",
	"MOD_SLIME",
	"MOD_LAVA",
	"MOD_CRUSH",
	"MOD_TELEFRAG",
	"MOD_FALLING",
	"MOD_SUICIDE",
	"MOD_TARGET_LASER",
	"MOD_TRIGGER_HURT",
#ifdef MISSIONPACK
	"MOD_NAIL",
	"MOD_CHAINGUN",
	"MOD_PROXIMITY_MINE",
	"MOD_KAMIKAZE",
	"MOD_JUICED",
#endif
	"MOD_GRAPPLE"
};

#ifdef MISSIONPACK
/*
==================
Kamikaze_DeathActivate
==================
*/
void Kamikaze_DeathActivate( gentity_t *ent ) {
	G_StartKamikaze(ent);
	G_FreeEntity(ent);
}

/*
==================
Kamikaze_DeathTimer
==================
*/
void Kamikaze_DeathTimer( gentity_t *self ) {
	gentity_t *ent;

	ent = G_Spawn();
	ent->classname = "kamikaze timer";
	VectorCopy(self->s.pos.trBase, ent->s.pos.trBase);
	ent->r.svFlags |= SVF_NOCLIENT;
	ent->think = Kamikaze_DeathActivate;
	ent->nextthink = level.time + 5 * 1000;

	ent->activator = self;
}

#endif

/*
==================
CheckAlmostCapture
==================
*/
void CheckAlmostCapture( gentity_t *self, gentity_t *attacker ) {
	gentity_t	*ent;
	vec3_t		dir;
	char		*classname;

	// if this player was carrying a flag
	if ( self->client->ps.powerups[PW_REDFLAG] ||
		self->client->ps.powerups[PW_BLUEFLAG] ||
		self->client->ps.powerups[PW_NEUTRALFLAG] ) {
		// get the goal flag this player should have been going for
		if ( g_gametype.integer == GT_CTF ) {
			if ( self->client->sess.sessionTeam == TEAM_BLUE ) {
				classname = "team_CTF_blueflag";
			}
			else {
				classname = "team_CTF_redflag";
			}
		}
		else {
			if ( self->client->sess.sessionTeam == TEAM_BLUE ) {
				classname = "team_CTF_redflag";
			}
			else {
				classname = "team_CTF_blueflag";
			}
		}
		ent = NULL;
		do
		{
			ent = G_Find(ent, FOFS(classname), classname);
		} while (ent && (ent->flags & FL_DROPPED_ITEM));
		// if we found the destination flag and it's not picked up
		if (ent && !(ent->r.svFlags & SVF_NOCLIENT) ) {
			// if the player was *very* close
			VectorSubtract( self->client->ps.origin, ent->s.origin, dir );
			if ( VectorLength(dir) < 200 ) {
				self->client->ps.persistant[PERS_PLAYEREVENTS] ^= PLAYEREVENT_HOLYSHIT;
				if ( attacker->client ) {
					attacker->client->ps.persistant[PERS_PLAYEREVENTS] ^= PLAYEREVENT_HOLYSHIT;
				}
			}
		}
	}
}