g_combat.c

quakeIII源码这个不用我多说吧

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

	// if the player was carrying cubes
	if ( self->client->ps.generic1 ) {
		if ( self->client->sess.sessionTeam == TEAM_BLUE ) {
			classname = "team_redobelisk";
		}
		else {
			classname = "team_blueobelisk";
		}
		ent = G_Find(NULL, FOFS(classname), classname);
		// if we found the destination obelisk
		if ( ent ) {
			// 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;
				}
			}
		}
	}
}

/*
==================
player_die
==================
*/
void player_die( gentity_t *self, gentity_t *inflictor, gentity_t *attacker, int damage, int meansOfDeath ) {
	gentity_t	*ent;
	int			anim;
	int			contents;
	int			killer;
	int			i;
	char		*killerName, *obit;

	if ( self->client->ps.pm_type == PM_DEAD ) {
		return;
	}

	if ( level.intermissiontime ) {
		return;
	}

	// check for an almost capture
	CheckAlmostCapture( self, attacker );
	// check for a player that almost brought in cubes
	CheckAlmostScored( self, attacker );

	if (self->client && self->client->hook) {
		Weapon_HookFree(self->client->hook);
	}
#ifdef MISSIONPACK
	if ((self->client->ps.eFlags & EF_TICKING) && self->activator) {
		self->client->ps.eFlags &= ~EF_TICKING;
		self->activator->think = G_FreeEntity;
		self->activator->nextthink = level.time;
	}
#endif
	self->client->ps.pm_type = PM_DEAD;

	if ( attacker ) {
		killer = attacker->s.number;
		if ( attacker->client ) {
			killerName = attacker->client->pers.netname;
		} else {
			killerName = "<non-client>";
		}
	} else {
		killer = ENTITYNUM_WORLD;
		killerName = "<world>";
	}

	if ( killer < 0 || killer >= MAX_CLIENTS ) {
		killer = ENTITYNUM_WORLD;
		killerName = "<world>";
	}

	if ( meansOfDeath < 0 || meansOfDeath >= sizeof( modNames ) / sizeof( modNames[0] ) ) {
		obit = "<bad obituary>";
	} else {
		obit = modNames[ meansOfDeath ];
	}

	G_LogPrintf("Kill: %i %i %i: %s killed %s by %s\n", 
		killer, self->s.number, meansOfDeath, killerName, 
		self->client->pers.netname, obit );

	// broadcast the death event to everyone
	ent = G_TempEntity( self->r.currentOrigin, EV_OBITUARY );
	ent->s.eventParm = meansOfDeath;
	ent->s.otherEntityNum = self->s.number;
	ent->s.otherEntityNum2 = killer;
	ent->r.svFlags = SVF_BROADCAST;	// send to everyone

	self->enemy = attacker;

	self->client->ps.persistant[PERS_KILLED]++;

	if (attacker && attacker->client) {
		attacker->client->lastkilled_client = self->s.number;

		if ( attacker == self || OnSameTeam (self, attacker ) ) {
			AddScore( attacker, self->r.currentOrigin, -1 );
		} else {
			AddScore( attacker, self->r.currentOrigin, 1 );

			if( meansOfDeath == MOD_GAUNTLET ) {
				
				// play humiliation on player
				attacker->client->ps.persistant[PERS_GAUNTLET_FRAG_COUNT]++;

				// add the sprite over the player's head
				attacker->client->ps.eFlags &= ~(EF_AWARD_IMPRESSIVE | EF_AWARD_EXCELLENT | EF_AWARD_GAUNTLET | EF_AWARD_ASSIST | EF_AWARD_DEFEND | EF_AWARD_CAP );
				attacker->client->ps.eFlags |= EF_AWARD_GAUNTLET;
				attacker->client->rewardTime = level.time + REWARD_SPRITE_TIME;

				// also play humiliation on target
				self->client->ps.persistant[PERS_PLAYEREVENTS] ^= PLAYEREVENT_GAUNTLETREWARD;
			}

			// check for two kills in a short amount of time
			// if this is close enough to the last kill, give a reward sound
			if ( level.time - attacker->client->lastKillTime < CARNAGE_REWARD_TIME ) {
				// play excellent on player
				attacker->client->ps.persistant[PERS_EXCELLENT_COUNT]++;

				// add the sprite over the player's head
				attacker->client->ps.eFlags &= ~(EF_AWARD_IMPRESSIVE | EF_AWARD_EXCELLENT | EF_AWARD_GAUNTLET | EF_AWARD_ASSIST | EF_AWARD_DEFEND | EF_AWARD_CAP );
				attacker->client->ps.eFlags |= EF_AWARD_EXCELLENT;
				attacker->client->rewardTime = level.time + REWARD_SPRITE_TIME;
			}
			attacker->client->lastKillTime = level.time;

		}
	} else {
		AddScore( self, self->r.currentOrigin, -1 );
	}

	// Add team bonuses
	Team_FragBonuses(self, inflictor, attacker);

	// if I committed suicide, the flag does not fall, it returns.
	if (meansOfDeath == MOD_SUICIDE) {
		if ( self->client->ps.powerups[PW_NEUTRALFLAG] ) {		// only happens in One Flag CTF
			Team_ReturnFlag( TEAM_FREE );
			self->client->ps.powerups[PW_NEUTRALFLAG] = 0;
		}
		else if ( self->client->ps.powerups[PW_REDFLAG] ) {		// only happens in standard CTF
			Team_ReturnFlag( TEAM_RED );
			self->client->ps.powerups[PW_REDFLAG] = 0;
		}
		else if ( self->client->ps.powerups[PW_BLUEFLAG] ) {	// only happens in standard CTF
			Team_ReturnFlag( TEAM_BLUE );
			self->client->ps.powerups[PW_BLUEFLAG] = 0;
		}
	}

	// if client is in a nodrop area, don't drop anything (but return CTF flags!)
	contents = trap_PointContents( self->r.currentOrigin, -1 );
	if ( !( contents & CONTENTS_NODROP )) {
		TossClientItems( self );
	}
	else {
		if ( self->client->ps.powerups[PW_NEUTRALFLAG] ) {		// only happens in One Flag CTF
			Team_ReturnFlag( TEAM_FREE );
		}
		else if ( self->client->ps.powerups[PW_REDFLAG] ) {		// only happens in standard CTF
			Team_ReturnFlag( TEAM_RED );
		}
		else if ( self->client->ps.powerups[PW_BLUEFLAG] ) {	// only happens in standard CTF
			Team_ReturnFlag( TEAM_BLUE );
		}
	}
#ifdef MISSIONPACK
	TossClientPersistantPowerups( self );
	if( g_gametype.integer == GT_HARVESTER ) {
		TossClientCubes( self );
	}
#endif

	Cmd_Score_f( self );		// show scores
	// send updated scores to any clients that are following this one,
	// or they would get stale scoreboards
	for ( i = 0 ; i < level.maxclients ; i++ ) {
		gclient_t	*client;

		client = &level.clients[i];
		if ( client->pers.connected != CON_CONNECTED ) {
			continue;
		}
		if ( client->sess.sessionTeam != TEAM_SPECTATOR ) {
			continue;
		}
		if ( client->sess.spectatorClient == self->s.number ) {
			Cmd_Score_f( g_entities + i );
		}
	}

	self->takedamage = qtrue;	// can still be gibbed

	self->s.weapon = WP_NONE;
	self->s.powerups = 0;
	self->r.contents = CONTENTS_CORPSE;

	self->s.angles[0] = 0;
	self->s.angles[2] = 0;
	LookAtKiller (self, inflictor, attacker);

	VectorCopy( self->s.angles, self->client->ps.viewangles );

	self->s.loopSound = 0;

	self->r.maxs[2] = -8;

	// don't allow respawn until the death anim is done
	// g_forcerespawn may force spawning at some later time
	self->client->respawnTime = level.time + 1700;

	// remove powerups
	memset( self->client->ps.powerups, 0, sizeof(self->client->ps.powerups) );

	// never gib in a nodrop
	if ( (self->health <= GIB_HEALTH && !(contents & CONTENTS_NODROP) && g_blood.integer) || meansOfDeath == MOD_SUICIDE) {
		// gib death
		GibEntity( self, killer );
	} else {
		// normal death
		static int i;

		switch ( i ) {
		case 0:
			anim = BOTH_DEATH1;
			break;
		case 1:
			anim = BOTH_DEATH2;
			break;
		case 2:
		default:
			anim = BOTH_DEATH3;
			break;
		}

		// for the no-blood option, we need to prevent the health
		// from going to gib level
		if ( self->health <= GIB_HEALTH ) {
			self->health = GIB_HEALTH+1;
		}

		self->client->ps.legsAnim = 
			( ( self->client->ps.legsAnim & ANIM_TOGGLEBIT ) ^ ANIM_TOGGLEBIT ) | anim;
		self->client->ps.torsoAnim = 
			( ( self->client->ps.torsoAnim & ANIM_TOGGLEBIT ) ^ ANIM_TOGGLEBIT ) | anim;

		G_AddEvent( self, EV_DEATH1 + i, killer );

		// the body can still be gibbed
		self->die = body_die;

		// globally cycle through the different death animations
		i = ( i + 1 ) % 3;

#ifdef MISSIONPACK
		if (self->s.eFlags & EF_KAMIKAZE) {
			Kamikaze_DeathTimer( self );
		}
#endif
	}

	trap_LinkEntity (self);

}


/*
================
CheckArmor
================
*/
int CheckArmor (gentity_t *ent, int damage, int dflags)
{
	gclient_t	*client;
	int			save;
	int			count;

	if (!damage)
		return 0;

	client = ent->client;

	if (!client)
		return 0;

	if (dflags & DAMAGE_NO_ARMOR)
		return 0;

	// armor
	count = client->ps.stats[STAT_ARMOR];
	save = ceil( damage * ARMOR_PROTECTION );
	if (save >= count)
		save = count;

	if (!save)
		return 0;

	client->ps.stats[STAT_ARMOR] -= save;

	return save;
}

/*
================
RaySphereIntersections
================
*/
int RaySphereIntersections( vec3_t origin, float radius, vec3_t point, vec3_t dir, vec3_t intersections[2] ) {
	float b, c, d, t;

	//	| origin - (point + t * dir) | = radius
	//	a = dir[0]^2 + dir[1]^2 + dir[2]^2;
	//	b = 2 * (dir[0] * (point[0] - origin[0]) + dir[1] * (point[1] - origin[1]) + dir[2] * (point[2] - origin[2]));
	//	c = (point[0] - origin[0])^2 + (point[1] - origin[1])^2 + (point[2] - origin[2])^2 - radius^2;

	// normalize dir so a = 1
	VectorNormalize(dir);
	b = 2 * (dir[0] * (point[0] - origin[0]) + dir[1] * (point[1] - origin[1]) + dir[2] * (point[2] - origin[2]));
	c = (point[0] - origin[0]) * (point[0] - origin[0]) +
		(point[1] - origin[1]) * (point[1] - origin[1]) +
		(point[2] - origin[2]) * (point[2] - origin[2]) -
		radius * radius;

	d = b * b - 4 * c;
	if (d > 0) {
		t = (- b + sqrt(d)) / 2;
		VectorMA(point, t, dir, intersections[0]);
		t = (- b - sqrt(d)) / 2;
		VectorMA(point, t, dir, intersections[1]);
		return 2;
	}
	else if (d == 0) {
		t = (- b ) / 2;
		VectorMA(point, t, dir, intersections[0]);
		return 1;
	}
	return 0;
}

#ifdef MISSIONPACK
/*
================
G_InvulnerabilityEffect
================
*/
int G_InvulnerabilityEffect( gentity_t *targ, vec3_t dir, vec3_t point, vec3_t impactpoint, vec3_t bouncedir ) {
	gentity_t	*impact;
	vec3_t		intersections[2], vec;
	int			n;

	if ( !targ->client ) {
		return qfalse;
	}
	VectorCopy(dir, vec);
	VectorInverse(vec);
	// sphere model radius = 42 units
	n = RaySphereIntersections( targ->client->ps.origin, 42, point, vec, intersections);
	if (n > 0) {
		impact = G_TempEntity( targ->client->ps.origin, EV_INVUL_IMPACT );
		VectorSubtract(intersections[0], targ->client->ps.origin, vec);
		vectoangles(vec, impact->s.angles);
		impact->s.angles[0] += 90;
		if (impact->s.angles[0] > 360)
			impact->s.angles[0] -= 360;
		if ( impactpoint ) {
			VectorCopy( intersections[0], impactpoint );
		}
		if ( bouncedir ) {
			VectorCopy( vec, bouncedir );
			VectorNormalize( bouncedir );
		}
		return qtrue;
	}
	else {
		return qfalse;
	}
}
#endif
/*
============