g_active.c

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/*
===========================================================================
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
===========================================================================
*/
//

#include "g_local.h"


/*
===============
G_DamageFeedback

Called just before a snapshot is sent to the given player.
Totals up all damage and generates both the player_state_t
damage values to that client for pain blends and kicks, and
global pain sound events for all clients.
===============
*/
void P_DamageFeedback( gentity_t *player ) {
	gclient_t	*client;
	float	count;
	vec3_t	angles;

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

	// total points of damage shot at the player this frame
	count = client->damage_blood + client->damage_armor;
	if ( count == 0 ) {
		return;		// didn't take any damage
	}

	if ( count > 255 ) {
		count = 255;
	}

	// send the information to the client

	// world damage (falling, slime, etc) uses a special code
	// to make the blend blob centered instead of positional
	if ( client->damage_fromWorld ) {
		client->ps.damagePitch = 255;
		client->ps.damageYaw = 255;

		client->damage_fromWorld = qfalse;
	} else {
		vectoangles( client->damage_from, angles );
		client->ps.damagePitch = angles[PITCH]/360.0 * 256;
		client->ps.damageYaw = angles[YAW]/360.0 * 256;
	}

	// play an apropriate pain sound
	if ( (level.time > player->pain_debounce_time) && !(player->flags & FL_GODMODE) ) {
		player->pain_debounce_time = level.time + 700;
		G_AddEvent( player, EV_PAIN, player->health );
		client->ps.damageEvent++;
	}


	client->ps.damageCount = count;

	//
	// clear totals
	//
	client->damage_blood = 0;
	client->damage_armor = 0;
	client->damage_knockback = 0;
}



/*
=============
P_WorldEffects

Check for lava / slime contents and drowning
=============
*/
void P_WorldEffects( gentity_t *ent ) {
	qboolean	envirosuit;
	int			waterlevel;

	if ( ent->client->noclip ) {
		ent->client->airOutTime = level.time + 12000;	// don't need air
		return;
	}

	waterlevel = ent->waterlevel;

	envirosuit = ent->client->ps.powerups[PW_BATTLESUIT] > level.time;

	//
	// check for drowning
	//
	if ( waterlevel == 3 ) {
		// envirosuit give air
		if ( envirosuit ) {
			ent->client->airOutTime = level.time + 10000;
		}

		// if out of air, start drowning
		if ( ent->client->airOutTime < level.time) {
			// drown!
			ent->client->airOutTime += 1000;
			if ( ent->health > 0 ) {
				// take more damage the longer underwater
				ent->damage += 2;
				if (ent->damage > 15)
					ent->damage = 15;

				// play a gurp sound instead of a normal pain sound
				if (ent->health <= ent->damage) {
					G_Sound(ent, CHAN_VOICE, G_SoundIndex("*drown.wav"));
				} else if (rand()&1) {
					G_Sound(ent, CHAN_VOICE, G_SoundIndex("sound/player/gurp1.wav"));
				} else {
					G_Sound(ent, CHAN_VOICE, G_SoundIndex("sound/player/gurp2.wav"));
				}

				// don't play a normal pain sound
				ent->pain_debounce_time = level.time + 200;

				G_Damage (ent, NULL, NULL, NULL, NULL, 
					ent->damage, DAMAGE_NO_ARMOR, MOD_WATER);
			}
		}
	} else {
		ent->client->airOutTime = level.time + 12000;
		ent->damage = 2;
	}

	//
	// check for sizzle damage (move to pmove?)
	//
	if (waterlevel && 
		(ent->watertype&(CONTENTS_LAVA|CONTENTS_SLIME)) ) {
		if (ent->health > 0
			&& ent->pain_debounce_time <= level.time	) {

			if ( envirosuit ) {
				G_AddEvent( ent, EV_POWERUP_BATTLESUIT, 0 );
			} else {
				if (ent->watertype & CONTENTS_LAVA) {
					G_Damage (ent, NULL, NULL, NULL, NULL, 
						30*waterlevel, 0, MOD_LAVA);
				}

				if (ent->watertype & CONTENTS_SLIME) {
					G_Damage (ent, NULL, NULL, NULL, NULL, 
						10*waterlevel, 0, MOD_SLIME);
				}
			}
		}
	}
}



/*
===============
G_SetClientSound
===============
*/
void G_SetClientSound( gentity_t *ent ) {
#ifdef MISSIONPACK
	if( ent->s.eFlags & EF_TICKING ) {
		ent->client->ps.loopSound = G_SoundIndex( "sound/weapons/proxmine/wstbtick.wav");
	}
	else
#endif
	if (ent->waterlevel && (ent->watertype&(CONTENTS_LAVA|CONTENTS_SLIME)) ) {
		ent->client->ps.loopSound = level.snd_fry;
	} else {
		ent->client->ps.loopSound = 0;
	}
}



//==============================================================

/*
==============
ClientImpacts
==============
*/
void ClientImpacts( gentity_t *ent, pmove_t *pm ) {
	int		i, j;
	trace_t	trace;
	gentity_t	*other;

	memset( &trace, 0, sizeof( trace ) );
	for (i=0 ; i<pm->numtouch ; i++) {
		for (j=0 ; j<i ; j++) {
			if (pm->touchents[j] == pm->touchents[i] ) {
				break;
			}
		}
		if (j != i) {
			continue;	// duplicated
		}
		other = &g_entities[ pm->touchents[i] ];

		if ( ( ent->r.svFlags & SVF_BOT ) && ( ent->touch ) ) {
			ent->touch( ent, other, &trace );
		}

		if ( !other->touch ) {
			continue;
		}

		other->touch( other, ent, &trace );
	}

}

/*
============
G_TouchTriggers

Find all trigger entities that ent's current position touches.
Spectators will only interact with teleporters.
============
*/
void	G_TouchTriggers( gentity_t *ent ) {
	int			i, num;
	int			touch[MAX_GENTITIES];
	gentity_t	*hit;
	trace_t		trace;
	vec3_t		mins, maxs;
	static vec3_t	range = { 40, 40, 52 };

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

	// dead clients don't activate triggers!
	if ( ent->client->ps.stats[STAT_HEALTH] <= 0 ) {
		return;
	}

	VectorSubtract( ent->client->ps.origin, range, mins );
	VectorAdd( ent->client->ps.origin, range, maxs );

	num = trap_EntitiesInBox( mins, maxs, touch, MAX_GENTITIES );

	// can't use ent->absmin, because that has a one unit pad
	VectorAdd( ent->client->ps.origin, ent->r.mins, mins );
	VectorAdd( ent->client->ps.origin, ent->r.maxs, maxs );

	for ( i=0 ; i<num ; i++ ) {
		hit = &g_entities[touch[i]];

		if ( !hit->touch && !ent->touch ) {
			continue;
		}
		if ( !( hit->r.contents & CONTENTS_TRIGGER ) ) {
			continue;
		}

		// ignore most entities if a spectator
		if ( ent->client->sess.sessionTeam == TEAM_SPECTATOR ) {
			if ( hit->s.eType != ET_TELEPORT_TRIGGER &&
				// this is ugly but adding a new ET_? type will
				// most likely cause network incompatibilities
				hit->touch != Touch_DoorTrigger) {
				continue;
			}
		}

		// use seperate code for determining if an item is picked up
		// so you don't have to actually contact its bounding box
		if ( hit->s.eType == ET_ITEM ) {
			if ( !BG_PlayerTouchesItem( &ent->client->ps, &hit->s, level.time ) ) {
				continue;
			}
		} else {
			if ( !trap_EntityContact( mins, maxs, hit ) ) {
				continue;
			}
		}

		memset( &trace, 0, sizeof(trace) );

		if ( hit->touch ) {
			hit->touch (hit, ent, &trace);
		}

		if ( ( ent->r.svFlags & SVF_BOT ) && ( ent->touch ) ) {
			ent->touch( ent, hit, &trace );
		}
	}

	// if we didn't touch a jump pad this pmove frame
	if ( ent->client->ps.jumppad_frame != ent->client->ps.pmove_framecount ) {
		ent->client->ps.jumppad_frame = 0;
		ent->client->ps.jumppad_ent = 0;
	}
}

/*
=================
SpectatorThink
=================
*/
void SpectatorThink( gentity_t *ent, usercmd_t *ucmd ) {
	pmove_t	pm;
	gclient_t	*client;

	client = ent->client;

	if ( client->sess.spectatorState != SPECTATOR_FOLLOW ) {
		client->ps.pm_type = PM_SPECTATOR;
		client->ps.speed = 400;	// faster than normal

		// set up for pmove
		memset (&pm, 0, sizeof(pm));
		pm.ps = &client->ps;
		pm.cmd = *ucmd;
		pm.tracemask = MASK_PLAYERSOLID & ~CONTENTS_BODY;	// spectators can fly through bodies
		pm.trace = trap_Trace;
		pm.pointcontents = trap_PointContents;

		// perform a pmove
		Pmove (&pm);
		// save results of pmove
		VectorCopy( client->ps.origin, ent->s.origin );

		G_TouchTriggers( ent );
		trap_UnlinkEntity( ent );
	}

	client->oldbuttons = client->buttons;
	client->buttons = ucmd->buttons;

	// attack button cycles through spectators
	if ( ( client->buttons & BUTTON_ATTACK ) && ! ( client->oldbuttons & BUTTON_ATTACK ) ) {
		Cmd_FollowCycle_f( ent, 1 );
	}
}



/*
=================
ClientInactivityTimer

Returns qfalse if the client is dropped
=================
*/
qboolean ClientInactivityTimer( gclient_t *client ) {
	if ( ! g_inactivity.integer ) {
		// give everyone some time, so if the operator sets g_inactivity during
		// gameplay, everyone isn't kicked
		client->inactivityTime = level.time + 60 * 1000;
		client->inactivityWarning = qfalse;
	} else if ( client->pers.cmd.forwardmove || 
		client->pers.cmd.rightmove || 
		client->pers.cmd.upmove ||
		(client->pers.cmd.buttons & BUTTON_ATTACK) ) {
		client->inactivityTime = level.time + g_inactivity.integer * 1000;
		client->inactivityWarning = qfalse;
	} else if ( !client->pers.localClient ) {
		if ( level.time > client->inactivityTime ) {
			trap_DropClient( client - level.clients, "Dropped due to inactivity" );
			return qfalse;
		}
		if ( level.time > client->inactivityTime - 10000 && !client->inactivityWarning ) {
			client->inactivityWarning = qtrue;
			trap_SendServerCommand( client - level.clients, "cp \"Ten seconds until inactivity drop!\n\"" );
		}
	}
	return qtrue;
}

/*
==================
ClientTimerActions