jedioutcast/code/game/bg_misc.cpp

// this include must remain at the top of every bg_xxxx CPP file
#include "common_headers.h"

// included in both game dll and client

//#include "q_shared.h"
#include "g_local.h"
#include "bg_public.h"
#include "g_items.h"


extern weaponData_t weaponData[WP_NUM_WEAPONS];
extern ammoData_t ammoData[AMMO_MAX];


#define PICKUPSOUND "sound/weapons/w_pkup.wav"

/*QUAKED weapon_***** ( 0 0 0 ) (-16 -16 -16) (16 16 16) suspended
DO NOT USE THIS CLASS, IT JUST HOLDS GENERAL INFORMATION for weapons, ammo, and item pickups.
The suspended flag will allow items to hang in the air, otherwise they are dropped to the next surface.
The STARFLEET flag allows only starfleets to pick it up.
The MONSTER flag allows only NON-starfleets to pick it up.

If an item is the target of another entity, it will spawn as normal, use INVISIBLE to hide it.

An item fires all of its targets when it is picked up.  If the toucher can't carry it, the targets won't be fired.

"wait"	override the default wait before respawning.  -1 = never respawn automatically, which can be used with targeted spawning.
"random" random number of plus or minus seconds varied from the respawn time
"count" override quantity or duration on most items.
*/

/*QUAKED weapon_stun_baton (.3 .3 1) (-16 -16 -2) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED weapon_saber (.3 .3 1) (-16 -16 -8) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED weapon_bryar_pistol (.3 .3 1) (-16 -16 -2) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED weapon_blaster (.3 .3 1) (-16 -16 -2) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED weapon_disruptor (.3 .3 1) (-16 -16 -2) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED weapon_bowcaster (.3 .3 1) (-16 -16 -2) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED weapon_repeater (.3 .3 1) (-16 -16 -2) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED weapon_demp2 (.3 .3 1) (-16 -16 -2) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED weapon_flechette (.3 .3 1) (-16 -16 -2) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED weapon_rocket_launcher (.3 .3 1) (-16 -16 -2) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED weapon_thermal (.3 .3 1) (-16 -16 -2) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED weapon_trip_mine (.3 .3 1) (-16 -16 -2) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED weapon_det_pack (.3 .3 1) (-16 -16 -2) (16 16 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/

/*QUAKED item_seeker (.3 .3 1) (-8 -8 -4) (8 8 16) suspended
30 seconds of seeker drone
*/
/*QUAKED item_shield (.3 .3 1) (-8 -8 0) (8 8 16) suspended
Personal shield
*/
/*QUAKED item_bacta (.3 .3 1) (-8 -8 0) (8 8 16) suspended
*/
/*QUAKED item_datapad (.3 .3 1) (-8 -8 0) (8 8 16) suspended
*/
/*QUAKED item_binoculars (.3 .3 1) (-8 -8 0) (8 8 16) suspended
*/
/*QUAKED item_sentry_gun (.3 .3 1) (-8 -8 0) (8 8 16) suspended
*/
/*QUAKED item_la_goggles (.3 .3 1) (-8 -8 0) (8 8 16) suspended
*/
/*QUAKED ammo_force (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
Ammo for the force.
*/
/*QUAKED ammo_blaster (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
Ammo for the Bryar and Blaster pistols.
*/
/*QUAKED ammo_powercell (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
Ammo for Tenloss Disruptor, Wookie Bowcaster, and the Destructive Electro Magnetic Pulse (demp2 ) guns
*/
/*QUAKED ammo_metallic_bolts (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
Ammo for Imperial Heavy Repeater and the Golan Arms Flechette
*/
/*QUAKED ammo_rockets (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
Ammo for Merr-Sonn portable missile launcher
*/
/*QUAKED ammo_thermal (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
Belt of thermal detonators
*/
/*QUAKED ammo_tripmine (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
3 pack of tripmines
*/
/*QUAKED ammo_detpack (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
3 pack of detpacks
*/

/*QUAKED item_medpak_instant (.3 .3 1) (-8 -8 -4) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/

/*QUAKED item_shield_sm_instant (.3 .3 1) (-8 -8 -4) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/

/*QUAKED item_shield_lrg_instant (.3 .3 1) (-8 -8 -4) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID VERTICAL INVISIBLE
*/
/*QUAKED item_goodie_key (.3 .3 1) (-8 -8 0) (8 8 16) suspended
*/
/*QUAKED item_security_key (.3 .3 1) (-8 -8 0) (8 8 16) suspended
message - used to differentiate one key from another.
*/
/*QUAKED item_battery (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
battery pickup item
*/

/*QUAKED holocron_force_heal (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
force heal pickup item

"count"     level of force power this holocron gives activator ( range: 0-3, default 1)
*/

/*QUAKED holocron_force_levitation (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
force levitation pickup item

"count"     level of force power this holocron gives activator ( range: 0-3, default 1)
*/

/*QUAKED holocron_force_speed (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
force speed pickup item

"count"     level of force power this holocron gives activator ( range: 0-3, default 1)
*/

/*QUAKED holocron_force_push (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
force push pickup item

"count"     level of force power this holocron gives activator ( range: 0-3, default 1)
*/

/*QUAKED holocron_force_pull (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
force pull pickup item

"count"     level of force power this holocron gives activator ( range: 0-3, default 1)
*/

/*QUAKED holocron_force_telepathy (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
force telepathy pickup item

"count"     level of force power this holocron gives activator ( range: 0-3, default 1)
*/

/*QUAKED holocron_force_grip (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
force grip pickup item

"count"     level of force power this holocron gives activator ( range: 0-3, default 1)
*/

/*QUAKED holocron_force_lightining (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
force lighting pickup item

"count"     level of force power this holocron gives activator ( range: 0-3, default 1)
*/

/*QUAKED holocron_force_saberthrow (.3 .5 1) (-8 -8 -0) (8 8 16) SUSPEND STARFLEET MONSTER NOTSOLID
force saberthrow pickup item

"count"     level of force power this holocron gives activator ( range: 0-3, default 1)
*/

gitem_t	bg_itemlist[ITM_NUM_ITEMS+1];//need a null on the end

//int		bg_numItems = sizeof(bg_itemlist) / sizeof(bg_itemlist[0]) ;
const int		bg_numItems = ITM_NUM_ITEMS;



/*
===============
FindItemForWeapon

===============
*/
gitem_t	*FindItemForWeapon( weapon_t weapon ) {
	int		i;

	for ( i = 1 ; i < bg_numItems ; i++ ) {
		if ( bg_itemlist[i].giType == IT_WEAPON && bg_itemlist[i].giTag == weapon ) {
			return &bg_itemlist[i];
		}
	}

	Com_Error( ERR_DROP, "Couldn't find item for weapon %i", weapon);
	return NULL;
}

//----------------------------------------------
gitem_t	*FindItemForInventory( int inv ) 
{
	int		i;
	gitem_t	*it;

	// this is particularly ugly because we do not have a 1 to 1 correlation between an inventory item and a real item.
	if ( inv >= INV_GOODIE_KEY1 && inv <= INV_GOODIE_KEY5 )
	{
		return &bg_itemlist[ITM_GOODIE_KEY_PICKUP];
	}
	else if ( inv >= INV_SECURITY_KEY1 && inv <= INV_SECURITY_KEY5 )
	{
		return &bg_itemlist[ITM_SECURITY_KEY_PICKUP];
	}

	// Now just check for any other kind of item.
	for ( i = 1 ; i < bg_numItems ; i++ ) 
	{
		it = &bg_itemlist[i];

		if ( it->giType == IT_HOLDABLE )
		{
			if ( it->giTag == inv ) 
			{
				return it;
			}
		}
	}

	Com_Error( ERR_DROP, "Couldn't find item for inventory %i", inv );
	return NULL;
}

/*
===============
FindItemForWeapon

===============
*/
gitem_t	*FindItemForAmmo( ammo_t ammo ) 
{
	int		i;

	for ( i = 1 ; i < bg_numItems ; i++ ) 
	{
		if ( bg_itemlist[i].giType == IT_AMMO && bg_itemlist[i].giTag == ammo ) 
		{
			return &bg_itemlist[i];
		}
	}

	Com_Error( ERR_DROP, "Couldn't find item for ammo %i", ammo );
	return NULL;
}

/*
===============
FindItem

===============
*/
gitem_t	*FindItem( const char *pickupName ) {
	int		i;

	for ( i = 1 ; i < bg_numItems ; i++ ) {
		if ( !Q_stricmp( bg_itemlist[i].pickup_name, pickupName ) )
			return &bg_itemlist[i];
	}

	return NULL;
}


/*
================
BG_CanItemBeGrabbed

Returns false if the item should not be picked up.
This needs to be the same for client side prediction and server use.
================
*/
qboolean	BG_CanItemBeGrabbed( const entityState_t *ent, const playerState_t *ps ) {
	gitem_t	*item;

	if ( ent->modelindex < 1 || ent->modelindex >= bg_numItems ) {
		Com_Error( ERR_DROP, "BG_CanItemBeGrabbed: index out of range" );
	}

	item = &bg_itemlist[ent->modelindex];

	switch( item->giType ) {

	case IT_WEAPON:
		// See if we already have this weapon.
		if ( !(ps->stats[ STAT_WEAPONS ] & ( 1 << item->giTag ))) 
		{			
			// Don't have this weapon yet, so pick it up.
			return qtrue;
		}

		// Make sure that we aren't already full on ammo for this weapon
		if ( ps->ammo[weaponData[item->giTag].ammoIndex] >= ammoData[weaponData[item->giTag].ammoIndex].max )
		{
			// full, so don't grab the item
			return qfalse; 
		}

		return qtrue; // could use more of this type of ammo, so grab the item

	case IT_AMMO:

		if (item->giTag != AMMO_FORCE)
		{
			if ( ps->ammo[ item->giTag ] >= ammoData[item->giTag].max )	// checkme			
			{
				return qfalse;		// can't hold any more
			}
		}
		else
		{
			if (ps->forcePower >= ammoData[item->giTag].max)
			{
				return qfalse;		// can't hold any more
			}

		}

		return qtrue;

	case IT_ARMOR:
		// we also clamp armor to the maxhealth for handicapping
		if ( ps->stats[STAT_ARMOR] >= ps->stats[STAT_MAX_HEALTH] ) {
			return qfalse;
		}
		return qtrue;

	case IT_HEALTH:
		// don't pick up if already at max
		if ( ps->stats[STAT_HEALTH] >= ps->stats[STAT_MAX_HEALTH] ) {
			return qfalse;
		}
		return qtrue;

	case IT_BATTERY:
		// don't pick up if already at max
		if ( ps->batteryCharge >= MAX_BATTERIES ) 
		{
			return qfalse;
		}
		return qtrue;

	case IT_HOLOCRON:
		// pretty lame but for now you can always pick these up
		return qtrue;
		

	case IT_HOLDABLE:
		if ( item->giTag >= INV_ELECTROBINOCULARS && item->giTag <= INV_SENTRY )
		{
			// hardcoded--can only pick up five of any holdable
			if ( ps->inventory[item->giTag] >= 5 )
			{
				return qfalse;
			}
		}
		return qtrue;
	}

	return qfalse;
}

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

/*
================
EvaluateTrajectory

================
*/
void EvaluateTrajectory( const trajectory_t *tr, int atTime, vec3_t result ) {
	float		deltaTime;
	float		phase;

	switch( tr->trType ) {
	case TR_STATIONARY:
	case TR_INTERPOLATE:
		VectorCopy( tr->trBase, result );
		break;
	case TR_LINEAR:
		deltaTime = ( atTime - tr->trTime ) * 0.001F;	// milliseconds to seconds
		VectorMA( tr->trBase, deltaTime, tr->trDelta, result );
		break;
	case TR_SINE:
		deltaTime = ( atTime - tr->trTime ) / (float) tr->trDuration;
		phase = (float)sin( deltaTime * M_PI * 2 );
		VectorMA( tr->trBase, phase, tr->trDelta, result );
		break;
	case TR_LINEAR_STOP:
		if ( atTime > tr->trTime + tr->trDuration ) 
		{
			atTime = tr->trTime + tr->trDuration;
		}
		//old totally linear
		deltaTime = ( atTime - tr->trTime ) * 0.001F;	// milliseconds to seconds
		if ( deltaTime < 0 ) 
		{//going past the total duration
			deltaTime = 0;
		}
		VectorMA( tr->trBase, deltaTime, tr->trDelta, result );
		break;
	case TR_NONLINEAR_STOP:
		if ( atTime > tr->trTime + tr->trDuration ) 
		{
			atTime = tr->trTime + tr->trDuration;
		}
		//new slow-down at end
		if ( atTime - tr->trTime > tr->trDuration || atTime - tr->trTime <= 0  )
		{
			deltaTime = 0;
		}
		else
		{//FIXME: maybe scale this somehow?  So that it starts out faster and stops faster?
			deltaTime = tr->trDuration*0.001f*((float)cos( DEG2RAD(90.0f - (90.0f*((float)atTime-tr->trTime)/(float)tr->trDuration)) ));
		}
		VectorMA( tr->trBase, deltaTime, tr->trDelta, result );
		break;
	case TR_GRAVITY:
		deltaTime = ( atTime - tr->trTime ) * 0.001F;	// milliseconds to seconds
		VectorMA( tr->trBase, deltaTime, tr->trDelta, result );
		result[2] -= 0.5F * g_gravity->value * deltaTime * deltaTime;//DEFAULT_GRAVITY
		break;
	default:
		Com_Error( ERR_DROP, "EvaluateTrajectory: unknown trType: %i", tr->trTime );
		break;
	}
}

/*
================
EvaluateTrajectoryDelta

Returns current speed at given time
================
*/
void EvaluateTrajectoryDelta( const trajectory_t *tr, int atTime, vec3_t result ) {
	float	deltaTime;
	float	phase;

	switch( tr->trType ) {
	case TR_STATIONARY:
	case TR_INTERPOLATE:
		VectorClear( result );
		break;
	case TR_LINEAR:
		VectorCopy( tr->trDelta, result );
		break;
	case TR_SINE:
		deltaTime = ( atTime - tr->trTime ) / (float) tr->trDuration;
		phase = (float)cos( deltaTime * M_PI * 2 );	// derivative of sin = cos
		phase *= 0.5;
		VectorScale( tr->trDelta, phase, result );
		break;
	case TR_LINEAR_STOP:
		if ( atTime > tr->trTime + tr->trDuration ) 
		{
			VectorClear( result );
			return;
		}
		VectorCopy( tr->trDelta, result );
		break;
	case TR_NONLINEAR_STOP:
		if ( atTime - tr->trTime > tr->trDuration || atTime - tr->trTime <= 0  )
		{
			VectorClear( result );
			return;
		}
		deltaTime = tr->trDuration*0.001f*((float)cos( DEG2RAD(90.0f - (90.0f*((float)atTime-tr->trTime)/(float)tr->trDuration)) ));
		VectorScale( tr->trDelta, deltaTime, result );
		break;
	case TR_GRAVITY:
		deltaTime = ( atTime - tr->trTime ) * 0.001F;	// milliseconds to seconds
		VectorCopy( tr->trDelta, result );
		result[2] -= g_gravity->value * deltaTime;		// DEFAULT_GRAVITY
		break;
	default:
		Com_Error( ERR_DROP, "EvaluateTrajectoryDelta: unknown trType: %i", tr->trTime );
		break;
	}
}

/*
===============
AddEventToPlayerstate

Handles the sequence numbers
===============
*/
void AddEventToPlayerstate( int newEvent, int eventParm, playerState_t *ps ) {
	ps->events[ps->eventSequence & (MAX_PS_EVENTS-1)] = newEvent;
	ps->eventParms[ps->eventSequence & (MAX_PS_EVENTS-1)] = eventParm;
	ps->eventSequence++;
}


/*
===============
CurrentPlayerstateEvent

===============
*/
int	CurrentPlayerstateEvent( playerState_t *ps ) {
	return ps->events[ (ps->eventSequence-1) & (MAX_PS_EVENTS-1) ];
}

/*
========================
PlayerStateToEntityState

This is done after each set of usercmd_t on the server,
and after local prediction on the client
========================
*/
void PlayerStateToEntityState( playerState_t *ps, entityState_t *s ) {
	int		i;

	if ( ps->pm_type == PM_INTERMISSION || ps->pm_type == PM_SPECTATOR ) 
	{
		s->eType = ET_INVISIBLE;
	} 
	/*else if ( ps->stats[STAT_HEALTH] <= GIB_HEALTH ) 
	{
		s->eType = ET_INVISIBLE;
	} */
	else
	{
		s->eType = ET_PLAYER;
	}

	s->number = ps->clientNum;

	s->pos.trType = TR_INTERPOLATE;
	VectorCopy( ps->origin, s->pos.trBase );
	SnapVector( s->pos.trBase );

	s->apos.trType = TR_INTERPOLATE;
	VectorCopy( ps->viewangles, s->apos.trBase );
	SnapVector( s->apos.trBase );

	s->angles2[YAW] = ps->movementDir;
	s->legsAnim = ps->legsAnim;
	s->torsoAnim = ps->torsoAnim;
	s->clientNum = ps->clientNum;		// ET_PLAYER looks here instead of at number
										// so corpses can also reference the proper config
	s->eFlags = ps->eFlags;
	if ( ps->stats[STAT_HEALTH] <= 0 ) {
		s->eFlags |= EF_DEAD;
	} else {
		s->eFlags &= ~EF_DEAD;
	}

	// new sabre stuff
	s->saberActive = ps->saberActive;
	s->saberInFlight = ps->saberInFlight;
	
	s->vehicleModel = ps->vehicleModel;

	s->weapon = ps->weapon;
	s->groundEntityNum = ps->groundEntityNum;

	s->powerups = 0;
	for ( i = 0 ; i < MAX_POWERUPS ; i++ ) {
		if ( ps->powerups[ i ] ) {
			s->powerups |= 1 << i;
		}
	}
#if 0
	if ( ps->externalEvent ) {
		s->event = ps->externalEvent;
		s->eventParm = ps->externalEventParm;
	} else {
		int		seq;

		seq = (ps->eventSequence-1) & (MAX_PS_EVENTS-1);
		s->event = ps->events[ seq ] | ( ( ps->eventSequence & 3 ) << 8 );
		s->eventParm = ps->eventParms[ seq ];
	}

	// show some roll in the body based on velocity and angle
	if ( ps->stats[STAT_HEALTH] > 0 ) {
		vec3_t		right;
		float		sign;
		float		side;
		float		value;

		AngleVectors( ps->viewangles, NULL, right, NULL );

		side = DotProduct (ps->velocity, right);
		sign = side < 0 ? -1 : 1;
		side = fabs(side);
		
		value = 2;	// g_rollangle->value;

		if (side < 200 /* g_rollspeed->value */ )
			side = side * value / 200; // g_rollspeed->value;
		else
			side = value;
		
		s->angles[ROLL] = (int)(side*sign * 4);
	}
#endif
}


/*
============
BG_PlayerTouchesItem

Items can be picked up without actually touching their physical bounds
============
*/
qboolean	BG_PlayerTouchesItem( playerState_t *ps, entityState_t *item, int atTime ) {
	vec3_t		origin;

	EvaluateTrajectory( &item->pos, atTime, origin );

	// we are ignoring ducked differences here
	if ( ps->origin[0] - origin[0] > 44
		|| ps->origin[0] - origin[0] < -50
		|| ps->origin[1] - origin[1] > 36
		|| ps->origin[1] - origin[1] < -36
		|| ps->origin[2] - origin[2] > 36
		|| ps->origin[2] - origin[2] < -36 ) {
		return qfalse;
	}

	return qtrue;
}