heretic2-sdk/Toolkit/Programming/GameCode/game/g_items.c

//
// g_items.c
//
// Heretic II
// Copyright 1998 Raven Software
//

#include "g_local.h"
#include "p_item.h"
#include "g_items.h"
//#include "p_types.h"
#include "player.h"
#include "p_weapon.h"
#include "g_weapon.h"
#include "p_anims.h"
#include "p_anim_data.h"
#include "fx.h"
#include "random.h"
#include "vector.h"
#include "g_itemstats.h"

#define HEALTH_IGNORE_MAX	1
#define HEALTH_TIMED		2

#define ITEM_COOP_ONLY		1
#define ITEM_NO_DROP		2

extern player_export_t	playerExport;	// interface to player DLL.

// ************************************************************************************************
// RespawnedThink
// --------------
// ************************************************************************************************

void RespawnedThink(edict_t *ent)
{
	ent->think = NULL;
//	ent->svflags |= SVF_NOCLIENT;
}

// ************************************************************************************************
// DoRespawn
// ---------
// ************************************************************************************************

void DoRespawn(edict_t *ent)
{
	if(ent->team)
	{
		edict_t	*Master;
		int		Count;
		int		Choice;

		Master=ent->teammaster;

		for(Count=0,ent=Master;ent;ent=ent->chain,Count++)
			;

		Choice=irand(0, Count - 1);

		for(Count=0,ent=Master;Count<Choice;ent=ent->chain,Count++)
			;
	}

	ent->solid=SOLID_TRIGGER;

	gi.linkentity(ent);

	// Create a respawn client-effect (this isn't currenlty doing anything on the client).

	//gi.CreateEffect(&ent->s,FX_ITEM_RESPAWN,CEF_OWNERS_ORIGIN,ent->s.origin,NULL);

	// So it'll get sent to the client again.

//	ent->svflags &= ~SVF_NOCLIENT;

	// Re-enable the persistent effect.

	ent->s.effects &= ~EF_DISABLE_ALL_CFX;

	// So it'll get displayed again.

	ent->s.effects |= EF_ALWAYS_ADD_EFFECTS;

	// And the rest.

	ent->think = RespawnedThink;
	ent->nextthink = level.time + FRAMETIME;
}

// ************************************************************************************************
// PreRespawnThink
// ---------------
// ************************************************************************************************

void PreRespawnThink(edict_t *ent)
{
	int delay;
	float clients;

	// The equation for respawn:  
	//		--The respawn times should be normal for 8 players.
	//		--For 32 players the respawn should be halved
	//		--For 2 players the respawn should be doubled.
	if (deathmatch->value)
	{
/*		// You know what?  I thought I was being clever here, but I just screwed up the eq and made the game not respawn enough.
		delay = ent->delay * sqrt((float)game.num_clients/8.0);		// This makes it a nice curve.  Clever, no?
		// Lemme see here:  sqrt(2/8) = sqrt(1/4) = 1/2
		//					sqrt(8/8) = sqrt(1) = 1
		//					sqrt(32/8) = sqrt(4) = 2
*/
		clients=(float)game.num_clients;
		if (clients<2.0)
			clients=2.0;
		delay = ent->delay * sqrt(2.0/clients);		// Spawn more frequently when more players.
		// Lemme see here:  sqrt(2/2) = sqrt(1) = 1
		//					sqrt(2/8) = sqrt(1/4) = 1/2
		//					sqrt(2/32) = sqrt(1/16) = 1/4
	}
	else
	{
		delay = ent->delay;
	}
	ent->nextthink = level.time + delay - FRAMETIME;
	ent->think = DoRespawn;
//	ent->svflags |= SVF_NOCLIENT;
}

// ************************************************************************************************
// SetRespawn
// ----------
// ************************************************************************************************

void SetRespawn(edict_t *ent)
{
	// So it'll get sent to the client again.

//	ent->svflags &= ~SVF_NOCLIENT;

	// Disables all the effects on the entity.

	ent->s.effects |= EF_DISABLE_ALL_CFX;

	// Take off the EF_ALWAYS_ADD_EFFECTS or EF_DISABLE_ALL_CFX wont have an effect.

	ent->s.effects &= ~EF_ALWAYS_ADD_EFFECTS;

	// And the rest.

	ent->solid = SOLID_NOT;

	if(deathmatch->value && game.num_clients > 8)
	{
		// No less than 1/4th the delay.

		ent->nextthink = level.time + (ent->delay) / 4;
	}
	if(deathmatch->value && game.num_clients > 2)
	{
		// So things respawn faster with a lot of players.

		ent->nextthink = level.time + (ent->delay) / (game.num_clients/2);
	}
	else
	{
		ent->nextthink = level.time + ent->delay;
	}

	ent->think = PreRespawnThink;
}

// ************************************************************************************************
// Pickup_Puzzle
// -------------
// ************************************************************************************************

qboolean Pickup_Puzzle(edict_t *ent, edict_t *other)
{
	gitem_t	*item;

	if (other->flags & FL_CHICKEN)
	{
		return(false);
	}

	item = P_FindItemByClassname(ent->classname);

	if (!other->client->playerinfo.pers.inventory.Items[ITEM_INDEX(ent->item)])
	{
		other->client->playerinfo.pers.inventory.Items[ITEM_INDEX(ent->item)] = 1;

		gi.gamemsg_centerprintf(other, ent->item->msg_pickup);

		return(true);
	}
	else
	{
		return(false);
	}
}

// ************************************************************************************************
// AddWeaponToInventory
// --------------------
// ************************************************************************************************

qboolean AddWeaponToInventory(gitem_t *item,edict_t *player)
{
	gitem_t	*newitem;
	int		count;

	// Do we already have this weapon?

	if(!player->client->playerinfo.pers.inventory.Items[ITEM_INDEX(item)])
	{
		// We don't already have it, so get the weapon and some ammo.

		if (item->tag == ITEM_WEAPON_SWORDSTAFF)
			count= 0;
		else if (item->tag == ITEM_WEAPON_HELLSTAFF)
			count = AMMO_COUNT_HELLSTAFF;
		else if (item->tag == ITEM_WEAPON_REDRAINBOW)
		{
			// give us the bowtype
			player->client->playerinfo.pers.bowtype = BOW_TYPE_REDRAIN;
			count = AMMO_COUNT_REDRAINBOW;
		}
		else if (item->tag == ITEM_WEAPON_PHOENIXBOW)
		{
			// give us the bowtype
			player->client->playerinfo.pers.bowtype = BOW_TYPE_PHOENIX;
			count = AMMO_COUNT_PHOENIXBOW;
		}
		else
			count = AMMO_COUNT_MOST;

		player->client->playerinfo.pers.inventory.Items[ITEM_INDEX(item)] = 1;
		
		if(count)
		{
			newitem = P_FindItem(item->ammo);
			Add_Ammo(player, newitem,count);
		}

		// Now decide if we want to swap weapons or not.

		if (player->client->playerinfo.pers.autoweapon)
		{
			// If this new weapon is a higher value than the one we currently have, swap the current
			// weapon for the new one.

			if (ITEM_INDEX(item) > ITEM_INDEX(player->client->playerinfo.pers.weapon))
			{
				item->use(&player->client->playerinfo,item);
			}
		}

		return(true);
	}
	else 
	{
		// We already have it...

		if(!((deathmatch->value&&((int)dmflags->value&DF_WEAPONS_STAY))||coop->value))
		{
			// ...and DF_WEPONS_STAY is off and we're not in coop, so just try to up the ammo counts.

			if (item->tag == ITEM_WEAPON_HELLSTAFF)
			{
				newitem = P_FindItemByClassname("item_ammo_hellstaff");
				count = AMMO_COUNT_HELLSTAFF;
			}
			else if (item->tag == ITEM_WEAPON_REDRAINBOW)
			{
				newitem = P_FindItemByClassname("item_ammo_redrain");
				count = AMMO_COUNT_REDRAINBOW;
			}
			else if (item->tag == ITEM_WEAPON_PHOENIXBOW)
			{
				newitem = P_FindItemByClassname("item_ammo_phoenix");
				count = AMMO_COUNT_PHOENIXBOW;
			}
			else 
			{
				newitem = P_FindItemByClassname("item_mana_offensive_half");
				count = AMMO_COUNT_MOST;
			}

			if(Add_Ammo(player, newitem,count))
			{
				// Have space in our inventory, so add ammo.

				return(true);
			}
			else
			{
				// No space in inventory to add the ammo.

				return(false);
			}
		}
		else	
		{
			// ...but we're not able to pick it up.

			return(false);
		}
	}
}

// ************************************************************************************************
// Pickup_Weapon
// -------------
// ************************************************************************************************

qboolean Pickup_Weapon(edict_t *ent,edict_t *other)
{
	if (other->flags & FL_CHICKEN)
	{
		return(false);
	}

	if(AddWeaponToInventory(ent->item,other))
	{
		gi.gamemsg_centerprintf(other, ent->item->msg_pickup);
		
		return(true);
	}
	else
	{
		// We already have it.

		return(false);
	}
}

// ************************************************************************************************
// AddDefenseToInventory
// ---------------------
// ************************************************************************************************

qboolean AddDefenseToInventory(gitem_t *item,edict_t *player)
{
	if(!player->client->playerinfo.pers.inventory.Items[ITEM_INDEX(item)])
	{
		player->client->playerinfo.pers.inventory.Items[ITEM_INDEX(item)]=1;

		// Now decide if we want to swap defenses or not.

//		if(player->client->playerinfo.pers.autoweapon || !player->client->playerinfo.pers.defence)
		if(player->client->playerinfo.pers.autoweapon )
		{
			item->use(&player->client->playerinfo,item);
		}

		return(true);
	}
	else 
	{
		// We already have it...

		return(false);
	}
}

// ************************************************************************************************
// Pickup_Defense
// --------------
// ************************************************************************************************

qboolean Pickup_Defense (edict_t *ent, edict_t *other)
{
	if (other->flags & FL_CHICKEN)
	{
		return(false);
	}

	if(AddDefenseToInventory(ent->item,other))
	{
		gi.gamemsg_centerprintf(other, ent->item->msg_pickup);

		return(true);
	}
	else
	{
		return(false);
	}
}

// ************************************************************************************************
// Add_AmmoToInventory
// -------------------
// ************************************************************************************************

qboolean Add_AmmoToInventory (edict_t *ent, gitem_t *item, int count,int max)
{
	int			index;

	index = ITEM_INDEX(item);

	if (ent->client->playerinfo.pers.inventory.Items[index] == max)
		return(false);

	ent->client->playerinfo.pers.inventory.Items[index] += count;

	if (ent->client->playerinfo.pers.inventory.Items[index] > max)
		ent->client->playerinfo.pers.inventory.Items[index] = max;

	return(true);
}

/*
===============
Add_Ammo
===============
*/

qboolean Add_Ammo (edict_t *ent, gitem_t *item, int count)
{
	int bo;
	int	max;

	if (!ent->client)
		return(false);

	if ((item->tag == ITEM_AMMO_MANA_OFFENSIVE_HALF) || (item->tag == ITEM_AMMO_MANA_OFFENSIVE_FULL))
	{
		item = P_FindItemByClassname("item_mana_offensive_half");
		max = ent->client->playerinfo.pers.max_offmana;
		return(Add_AmmoToInventory (ent,item,count,max));
	}
	else if ((item->tag == ITEM_AMMO_MANA_DEFENSIVE_HALF) || (item->tag == ITEM_AMMO_MANA_DEFENSIVE_FULL))
	{
		item = P_FindItemByClassname("item_mana_defensive_half");
		max = ent->client->playerinfo.pers.max_defmana;
		return(Add_AmmoToInventory (ent,item,count,max));
	}
	else if ((item->tag == ITEM_AMMO_MANA_COMBO_QUARTER) || (item->tag == ITEM_AMMO_MANA_COMBO_HALF))
	{
		item = P_FindItemByClassname("item_mana_offensive_half");
		max = ent->client->playerinfo.pers.max_offmana;
		
		bo = Add_AmmoToInventory (ent,item,count,max);

		item = P_FindItemByClassname("item_mana_defensive_half");
		max = ent->client->playerinfo.pers.max_defmana;
		bo |= Add_AmmoToInventory (ent,item,count,max);

		return(bo);
	}
	else if (item->tag == ITEM_AMMO_REDRAIN)
	{
		max = ent->client->playerinfo.pers.max_redarrow;
		return(Add_AmmoToInventory (ent,item,count,max));
	}
	else if (item->tag == ITEM_AMMO_PHOENIX)
	{
		max = ent->client->playerinfo.pers.max_phoenarr;
		return(Add_AmmoToInventory (ent,item,count,max));
	}
	else if (item->tag == ITEM_AMMO_HELLSTAFF)
	{
		max = ent->client->playerinfo.pers.max_hellstaff;
		return(Add_AmmoToInventory (ent,item,count,max));
	}
	else
		return(false);
}

/*
===============
Pickup_Ammo
===============
*/

qboolean Pickup_Ammo (edict_t *ent, edict_t *other)
{
	int		count;

	if (other->flags & FL_CHICKEN)
	{
		return(false);
	}

	if (ent->count)
		count = ent->count;
	else
		count = ent->item->quantity;

	if (!Add_Ammo (other, ent->item, count))
		return(false);

	gi.gamemsg_centerprintf(other, ent->item->msg_pickup);

	return(true);
}

/*
===============
Pickup_Manna

Separate routine so we can distinguish between ammo and mana.
===============
*/

qboolean Pickup_Mana (edict_t *ent, edict_t *other)
{
	return(Pickup_Ammo(ent, other));
}

/*
===============
Drop_Ammo
===============
*/

void Drop_Ammo (edict_t *ent, gitem_t *item)
{
	edict_t	*dropped;
	int		index;

	index = ITEM_INDEX(item);
	dropped = Drop_Item (ent, item);

	if (ent->client->playerinfo.pers.inventory.Items[index] >= item->quantity)
		dropped->count = item->quantity;
	else
		dropped->count = ent->client->playerinfo.pers.inventory.Items[index];
	ent->client->playerinfo.pers.inventory.Items[index] -= dropped->count;

	ValidateSelectedItem (ent);
}

/*
===============
Pickup_Health
===============
*/

qboolean Pickup_Health (edict_t *ent, edict_t *other)
{
	if (other->flags & FL_CHICKEN)
	{
		return(false);
	}

	if (!(ent->style & HEALTH_IGNORE_MAX))
	{
		if (other->health >= other->max_health)
		{
			return(false);
		}
	}

	other->health += ent->item->quantity;

	if(other->fire_damage_time>level.time)
	{
		other->fire_damage_time -= ent->item->quantity/10;
		if(other->fire_damage_time<=0)
		{
			other->fire_damage_time = 0;
//			gi.RemoveEffects(&other->s, FX_FIRE_ON_ENTITY);//turn off CFX too
			other->s.effects |= EF_MARCUS_FLAG1;		// Notify the effect to turn itself off.
		}
	}

	if (!(ent->style & HEALTH_IGNORE_MAX))
	{
		if (other->health > other->max_health)
		{
			other->health = other->max_health;
		}
	}

	if(other->client)
		player_repair_skin(other);

	gi.gamemsg_centerprintf(other, ent->item->msg_pickup);
	
	return(true);
}

/*
===============
Touch_Item
===============
*/

void Touch_Item (edict_t *ent, edict_t *other, cplane_t *plane, csurface_t *surf)
{
	if(strcmp(other->classname,"player"))
	{
		// Only players can touch items.

		return;
	}

	if(other->health <= 0)
	{
		// Dead players can't pickup.

		return;
	}


	if(!ent->item->pickup)
	{
		// Not a grabbable item.

		return;
	}

	assert(ent->item->pickup);

	if((other->client->playerinfo.edictflags & FL_CHICKEN) && (ent->item->pickup == Pickup_Health))
	{
		// chickens can't pickup health

		return;
	}

		if(!ent->item->pickup(ent, other))
	{
		// Player can't hold it.

		return;
	}
	
	gi.sound(other, CHAN_ITEM, gi.soundindex(ent->item->pickup_sound), 1, ATTN_NORM, 0);

	gi.CreateEffect(NULL, FX_PICKUP, 0, ent->s.origin, "");

	G_UseTargets (ent, other);

	// Handle respawn / removal of the item.

	if(((ent->item->pickup==Pickup_Weapon)||(ent->item->pickup==Pickup_Defense)||(ent->item->pickup==Pickup_Puzzle))&& 
	   ((deathmatch->value&&((int)dmflags->value&DF_WEAPONS_STAY))||coop->value))
	{
		// The item is a weapon or a defence or a puzzle piece AND (deathmatch rule DF_WEAPONS_STAY 
		// is on OR we are playing coop), so just return right now, as we don't care about respawn
		// or removal.

		return;
	}
	
	if(ent->flags&FL_RESPAWN)
	{
		// The item should respawn.

		SetRespawn(ent);
	}
	else
	{
		// Going away for good, so make it noclipping.

		ent->solid = SOLID_NOT;

		// Once picked up, the item is gone forever, so remove it's client effect(s).

		gi.RemoveEffects(&ent->s,0);

		// The persistent part is removed from the server here.

		G_SetToFree(ent);
	}
}

/*
================
drop_temp_touch
================
*/

static void drop_temp_touch (edict_t *ent, edict_t *other, cplane_t *plane, csurface_t *surf)
{
	if (other == ent->owner)
		return;

	Touch_Item (ent, other, plane, surf);
}

/*
================
drop_make_touchable
================
*/

static void drop_make_touchable (edict_t *ent)
{
	ent->touch = Touch_Item;

	if (deathmatch->value)
	{
		ent->nextthink = level.time + 29;
		ent->think = G_FreeEdict;
	}
}

/*
================
Drop_Item
================
*/

edict_t *Drop_Item (edict_t *ent, gitem_t *item)
{
	edict_t	*dropped;
	vec3_t	forward, right;
	vec3_t	offset;

	dropped = G_Spawn();

	dropped->classname = item->classname;
	dropped->item = item;
	dropped->spawnflags = DROPPED_ITEM;
	dropped->s.effects = item->world_model_flags;
	dropped->s.renderfx = RF_GLOW;
	VectorSet (dropped->mins, -15, -15, -15);
	VectorSet (dropped->maxs, 15, 15, 15);
	gi.setmodel (dropped, dropped->item->world_model);
	dropped->solid = SOLID_TRIGGER;
	dropped->movetype = PHYSICSTYPE_NONE;  
	dropped->touch = drop_temp_touch;
	dropped->owner = ent;

	if (ent->client)
	{
		trace_t	trace;

		AngleVectors (ent->client->v_angle, forward, right, NULL);
		VectorSet(offset, 24, 0, -16);
		G_ProjectSource (ent->s.origin, offset, forward, right, dropped->s.origin);
		gi.trace (ent->s.origin, dropped->mins, dropped->maxs,
			dropped->s.origin, ent, CONTENTS_SOLID,&trace);
		VectorCopy (trace.endpos, dropped->s.origin);
	}
	else
	{
		AngleVectors (ent->s.angles, forward, right, NULL);
		VectorCopy (ent->s.origin, dropped->s.origin);
	}

	VectorScale (forward, 100, dropped->velocity);
	dropped->velocity[2] = 300;

	dropped->think = drop_make_touchable;
	dropped->nextthink = level.time + 1;

	gi.linkentity (dropped);

	return dropped;
}

/*
================
Use_Item
================
*/
/*
void Use_Item (edict_t *ent, edict_t *other, edict_t *activator)
{
//	ent->svflags &= ~SVF_NOCLIENT;
	ent->use = NULL;

	if (ent->spawnflags & 2)	// NO_TOUCH
	{
		ent->solid = SOLID_BBOX;
		ent->touch = NULL;
	}
	else
	{
		ent->solid = SOLID_TRIGGER;
		ent->touch = Touch_Item;
	}

	gi.linkentity (ent);
}
*/

// ************************************************************************************************
// ValidItem
// ---------
// ************************************************************************************************

qboolean ValidItem(gitem_t *item)
{
	// Some items will be prevented in deathmatch.

	if(deathmatch->value)
	{
		if ( (int)dmflags->value & DF_NO_DEFENSIVE_SPELL )
		{
			if (item->flags & IT_DEFENSE)
			{
				return false;
			}
		}
		if ( (int)dmflags->value & DF_NO_OFFENSIVE_SPELL )
		{
			if (item->flags & IT_OFFENSE)
			{
				return false;
			}
		}
		if ( (int)dmflags->value & DF_NO_HEALTH )
		{
			if (item->flags & IT_HEALTH)
			{
				return false;
			}
		}

		if ((item->tag == ITEM_DEFENSE_TORNADO) && (no_tornado->value))
			return false;
		else if ((item->tag == ITEM_DEFENSE_POLYMORPH) && (no_morph->value))
			return false;
		else if ((item->tag == ITEM_DEFENSE_SHIELD) && (no_shield->value))
			return false;
		else if ((item->tag == ITEM_DEFENSE_TELEPORT) && (no_teleport->value))
			return false;
		else if ((item->tag == ITEM_WEAPON_PHOENIXBOW) && (no_phoenix->value))
			return false;
		else if ((item->tag == ITEM_WEAPON_MACEBALLS) && (no_irondoom->value))
			return false;
	}

#if DEMO_CODE
	// don't spawn this item in Demo game
	if ((int)item->info)
		return false;
#endif

	return true;
}

// ************************************************************************************************
// SpawnItemEffect
// ---------------
// ************************************************************************************************

void SpawnItemEffect(edict_t *ent, gitem_t *item)
{

	if(!ValidItem(item))
	{
		G_FreeEdict (ent);
		return;
	}

	assert(!ent->PersistantCFX);

	if ((ent->spawnflags & ITEM_COOP_ONLY) && (!coop->value))
		return;

	if(ent->item->flags & IT_PUZZLE)
	{
		ent->PersistantCFX = gi.CreatePersistantEffect(&ent->s, FX_PICKUP_PUZZLE, CEF_BROADCAST, ent->s.origin, "bv", ent->item->tag,ent->s.angles);
	}
	else if(ent->item->flags & IT_WEAPON)
	{
		ent->PersistantCFX = gi.CreatePersistantEffect(&ent->s, FX_PICKUP_WEAPON, CEF_BROADCAST, ent->s.origin, "b", ent->item->tag);
	}
	else if(ent->item->flags & IT_AMMO)
	{
		ent->PersistantCFX = gi.CreatePersistantEffect(&ent->s, FX_PICKUP_AMMO, CEF_BROADCAST, ent->s.origin, "b", ent->item->tag);
	}
	else if(ent->item->flags & IT_DEFENSE)
	{
		ent->PersistantCFX = gi.CreatePersistantEffect(&ent->s, FX_PICKUP_DEFENSE, CEF_BROADCAST, ent->s.origin, "b", ent->item->tag);
	}
	else 
	{
		if (ent->item->tag)
			ent->PersistantCFX = gi.CreatePersistantEffect(&ent->s, FX_PICKUP_HEALTH, CEF_FLAG6|CEF_BROADCAST, ent->s.origin, "");
		else
			ent->PersistantCFX = gi.CreatePersistantEffect(&ent->s, FX_PICKUP_HEALTH, CEF_BROADCAST, ent->s.origin, "");
	}
}


/*
================
droptofloor
================
*/

void itemsdroptofloor (edict_t *ent)
{
	trace_t		tr;
	vec3_t		dest;

	ent->movetype = PHYSICSTYPE_STATIC;  
	ent->solid = SOLID_TRIGGER;
	ent->touch = Touch_Item;
	ent->think = NULL;

	if (!(ent->spawnflags & ITEM_NO_DROP))
	{
		VectorSet(dest, 0.0, 0.0, -128.0);
		Vec3AddAssign (ent->s.origin, dest);

		gi.linkentity (ent);

		gi.trace (ent->s.origin, ent->mins, ent->maxs, dest, ent, MASK_SOLID, &tr);
		if (tr.startsolid)
		{
			gi.dprintf ("droptofloor: %s startsolid at %s (inhibited)\n", ent->classname, vtos(ent->s.origin));
			G_FreeEdict (ent);
			return;
		}

		tr.endpos[2] += 24;
		VectorCopy(tr.endpos,ent->s.origin);
	}


	gi.linkentity (ent);

	// if we loading a saved game - the objects will already be out there
	if (!ent->PersistantCFX)
		SpawnItemEffect(ent, ent->item);
}


/*
===============
PrecacheItem

Precaches all data needed for a given item. This will be called for each item
spawned in a level, and for each item in each client's inventory.
===============
*/

void PrecacheItem (gitem_t *it)
{
	gitem_t	*ammo;

	if (!it)
		return;

	if (it->pickup_sound)
		gi.soundindex (it->pickup_sound);
	if (it->world_model)
		gi.modelindex (it->world_model);
	if (it->icon)
		gi.imageindex (it->icon);

	// parse everything for its ammo
	if (it->ammo && it->ammo[0])
	{
		ammo = P_FindItem (it->ammo);
		if (ammo != it)
			PrecacheItem (ammo);
	}
}
// ************************************************************************************************
// SpawnItem
// ---------
// Sets the clipping size and plants the object on the floor. Items can't be immediately dropped to
// the floor because they might be on an entity that hasn't spawned yet.
// ************************************************************************************************

void SpawnItem (edict_t *ent, gitem_t *item)
{
	if ((ent->spawnflags & ITEM_COOP_ONLY) && (!coop->value))
		return;

	PrecacheItem(item);

	if(!ValidItem(item))
	{
		G_FreeEdict (ent);
		return;
	}

	ent->item = item;
	ent->nextthink = level.time + (2 * FRAMETIME);    // items start after other solids
	ent->think = itemsdroptofloor;

	ent->s.effects = item->world_model_flags;
	ent->s.renderfx = RF_GLOW;
//	ent->svflags |= SVF_ALWAYS_SEND;				// make sure SVF_NOCLIENT gets set in think
	ent->s.effects |= EF_ALWAYS_ADD_EFFECTS;

	if (item->flags & IT_WEAPON)
	{
		if (item->tag == ITEM_WEAPON_MACEBALLS)
			ent->delay = RESPAWN_TIME_MACEBALL;		// Maceballs shouldn't come back as fast...
		else
			ent->delay = RESPAWN_TIME_WEAPON;
	}
	else if (item->flags & IT_DEFENSE)
	{
		if (item->tag == ITEM_DEFENSE_REPULSION)
			ent->delay = RESPAWN_TIME_RING;
		else if (item->tag == ITEM_DEFENSE_TELEPORT)
			ent->delay = RESPAWN_TIME_TELEPORT;
		else if (item->tag == ITEM_DEFENSE_POLYMORPH)
			ent->delay = RESPAWN_TIME_MORPH;
		else
			ent->delay = RESPAWN_TIME_DEFENSE;
	}
	else if (item->flags & IT_AMMO)
	{
		if (item->tag == ITEM_AMMO_REDRAIN || item->tag == ITEM_AMMO_PHOENIX)
			ent->delay = RESPAWN_TIME_ARROWS;
		else
			ent->delay = RESPAWN_TIME_AMMO;
	}
	else // Health and anything else
	{
		ent->delay = RESPAWN_TIME_MISC;
	}

	ent->flags = item->flags;
	ent->clipmask = MASK_MONSTERSOLID;

	if (item->flags == IT_PUZZLE)
	{
		VectorCopy(ent->item->mins, ent->mins);
		VectorCopy(ent->item->maxs, ent->maxs);
	}

	// FIXME: Until all objects have bounding boxes, default to these vals.
	if (Vec3IsZero(ent->mins))
	{
		VectorSet (ent->mins, -10.0, -10.0, -10.0);
		VectorSet (ent->maxs, 10.0, 10.0, 10.0);
	}

	ent->classname = item->classname;
	if(deathmatch->value)
	{
		ent->flags |= FL_RESPAWN;
	}
}
// ************************************************************************************************
// IsItem
// ------
// ************************************************************************************************

gitem_t	*IsItem(edict_t *ent)
{
	gitem_t	*item;
	int i;

	if(!ent->classname)
	{
		return NULL;
	}

	for(i = 0, item = playerExport.p_itemlist; i < game.num_items; ++i, ++item)
	{
		if(!item->classname)
		{
			continue;
		}

		if(!strcmp(item->classname, ent->classname))
		{	
			// Found it.

			return item;
		}
	}

	return NULL;
}

// ************************************************************************************************
// G_InitItems
// -----------
// ************************************************************************************************

void G_InitItems(void)
{
	// ********************************************************************************************
	// Setup item function pointers which yield pick-up, use, drop and weaponthink functionality.
	// ********************************************************************************************

	// Leave index 0 empty.

	// weapon_swordstaff
	// This can't be placed in the editor

	playerExport.p_itemlist[1].pickup=Pickup_Weapon;
	playerExport.p_itemlist[1].use=P_Weapon_EquipSwordStaff;
	playerExport.p_itemlist[1].weaponthink=WeaponThink_SwordStaff;

	// weapon_flyingfist
	// This can't be placed in the editor

	playerExport.p_itemlist[2].pickup=Pickup_Weapon;
	playerExport.p_itemlist[2].use=P_Weapon_EquipSpell;
	playerExport.p_itemlist[2].weaponthink=WeaponThink_FlyingFist;

	// item_weapon_hellstaff
/*QUAKED item_weapon_hellstaff (.3 .3 1) (-16 -16 -16) (16 16 16) COOP_ONLY
Pickup for the hellstaff weapon.
*/

	playerExport.p_itemlist[3].pickup=Pickup_Weapon;
	playerExport.p_itemlist[3].use=P_Weapon_EquipHellStaff;
	playerExport.p_itemlist[3].weaponthink=WeaponThink_HellStaff;

	// item_weapon_magicmissile
/*QUAKED item_weapon_magicmissile (.3 .3 1) (-16 -16 -16) (16 16 16) COOP_ONLY
Pickup for the Magic Missile weapon.
*/

	playerExport.p_itemlist[4].pickup=Pickup_Weapon;
	playerExport.p_itemlist[4].use=P_Weapon_EquipSpell;
	playerExport.p_itemlist[4].weaponthink=WeaponThink_MagicMissileSpread;

	// item_weapon_redrain_bow
/*QUAKED item_weapon_redrain_bow (.3 .3 1) (-16 -16 -16) (16 16 16)  COOP_ONLY
Pickup for the Red Rain Bow weapon.
*/

	playerExport.p_itemlist[5].pickup=Pickup_Weapon;
	playerExport.p_itemlist[5].use=P_Weapon_EquipBow;
	playerExport.p_itemlist[5].weaponthink=WeaponThink_RedRainBow;

	// item_weapon_firewall
/*QUAKED item_weapon_firewall (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for the Fire Wall weapon.
*/

	playerExport.p_itemlist[6].pickup=Pickup_Weapon;
	playerExport.p_itemlist[6].use=P_Weapon_EquipSpell;
	playerExport.p_itemlist[6].weaponthink=WeaponThink_Firewall;

	// item_weapon_phoenixbow
/*QUAKED item_weapon_phoenixbow (.3 .3 1) (-16 -16 -16) (16 16 16)  COOP_ONLY
Pickup for the Phoenix Bow weapon.
*/

	playerExport.p_itemlist[7].pickup=Pickup_Weapon;
	playerExport.p_itemlist[7].use=P_Weapon_EquipBow;
	playerExport.p_itemlist[7].weaponthink=WeaponThink_PhoenixBow;

	// item_weapon_sphereofannihilation
/*QUAKED item_weapon_sphereofannihilation (.3 .3 1) (-16 -16 -16) (16 16 16)  COOP_ONLY
Pickup for the Sphere Annihilation weapon.
*/

	playerExport.p_itemlist[8].pickup=Pickup_Weapon;
	playerExport.p_itemlist[8].use=P_Weapon_EquipSpell;
	playerExport.p_itemlist[8].weaponthink=WeaponThink_SphereOfAnnihilation;

	// item_weapon_maceballs
/*QUAKED item_weapon_maceballs (.3 .3 1) (-16 -16 -16) (16 16 16)  COOP_ONLY
Pickup for the Mace Balls weapon.
*/

	playerExport.p_itemlist[9].pickup=Pickup_Weapon;
	playerExport.p_itemlist[9].use=P_Weapon_EquipSpell;
	playerExport.p_itemlist[9].weaponthink=WeaponThink_Maceballs;
	
	// item_defense_powerup
	// This can't be placed in the editor

	playerExport.p_itemlist[10].pickup=Pickup_Defense;
	playerExport.p_itemlist[10].use=Use_Defence;
	playerExport.p_itemlist[10].weaponthink=DefenceThink_Powerup;

	// item_defense_ringofrepulsion
/*QUAKED item_defense_ringofrepulsion (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for the Ring of Repulsion defensive spell.
*/

	playerExport.p_itemlist[11].pickup=Pickup_Defense;
	playerExport.p_itemlist[11].use=Use_Defence;
	playerExport.p_itemlist[11].weaponthink=DefenceThink_RingOfRepulsion;
	
	// item_defense_shield
/*QUAKED item_defense_shield (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for the Shield defensive spell.
*/

	playerExport.p_itemlist[12].pickup=Pickup_Defense;
	playerExport.p_itemlist[12].use=Use_Defence;
	playerExport.p_itemlist[12].weaponthink=DefenceThink_Shield;

	// item_defense_teleport
/*QUAKED item_defense_teleport (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for the Teleport defensive spell.
*/

	playerExport.p_itemlist[13].pickup=Pickup_Defense;
	playerExport.p_itemlist[13].use=Use_Defence;
	playerExport.p_itemlist[13].weaponthink=DefenceThink_Teleport;

	// item_defense_polymorph
/*QUAKED item_defense_polymorph (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for the Polymorph Barrier defensive spell.
*/

	playerExport.p_itemlist[14].pickup=Pickup_Defense;
	playerExport.p_itemlist[14].use=Use_Defence;
	playerExport.p_itemlist[14].weaponthink=DefenceThink_Morph;

	// item_defense_meteorbarrier
/*QUAKED item_defense_meteorbarrier (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for the Meteor Barrier defensive spell.
*/

	playerExport.p_itemlist[15].pickup=Pickup_Defense;
	playerExport.p_itemlist[15].use=Use_Defence;
	playerExport.p_itemlist[15].weaponthink=DefenceThink_MeteorBarrier;

	// item_mana_offensive_half
/*QUAKED item_mana_offensive_half (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for the offensive mana (50 points).
*/
	playerExport.p_itemlist[16].pickup=Pickup_Mana;
	
	// item_mana_offensive_full
/*QUAKED item_mana_offensive_full (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for the offensive mana (100 points).
*/

	playerExport.p_itemlist[17].pickup=Pickup_Mana;

	// item_mana_defensive_half
/*QUAKED item_mana_defensive_half (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for the defensive mana (50 points).
*/

	playerExport.p_itemlist[18].pickup=Pickup_Mana;

	// item_mana_defensive_full
/*QUAKED item_mana_defensive_full (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for the defensive mana (100 points).
*/

	playerExport.p_itemlist[19].pickup=Pickup_Mana;

	// item_mana_combo_quarter
/*QUAK-ED item_mana_combo_quarter (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for both defensive & offensive mana (25 points).
*/

	playerExport.p_itemlist[20].pickup=Pickup_Mana;

	// item_mana_combo_half
/*QUAKED item_mana_combo_half (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for both defensive & offensive mana (50 points).
*/

	playerExport.p_itemlist[21].pickup=Pickup_Mana;

	// item_ammo_redrain
/*QUAKED item_ammo_redrain (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup ammo for the Red Rain Bow
*/

	playerExport.p_itemlist[22].pickup=Pickup_Ammo;

	// item_ammo_phoenix
/*QUAKED item_ammo_phoenix (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup ammo for the Phoenix Bow
*/

	playerExport.p_itemlist[23].pickup=Pickup_Ammo;

	// item_ammo_hellstaff
/*QUAKED item_ammo_hellstaff (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup ammo for the Hellstaff
*/

	playerExport.p_itemlist[24].pickup=Pickup_Ammo;

	// item_health_half
/*QUAKED item_health_half (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup health (10 points)
*/

	playerExport.p_itemlist[25].pickup=Pickup_Health;

	// item_health_full
/*QUAKED item_health_full (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup health (30 points)
*/

	playerExport.p_itemlist[26].pickup=Pickup_Health;

/*QUAKED item_puzzle_townkey (.3 .3 1) (-8 -8 -4) (8 8 4)  x NO_DROP
Key puzzle piece
Town Level
NO_DROP - won't drop to ground

*/
	playerExport.p_itemlist[27].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_cog (.3 .3 1) (-10 -10 -24) (10 10 20)  x  NO_DROP
Cog puzzle piece
Palace level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[28].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_shield (.3 .3 1) (-2 -6 -12) (2 6 12)  x  NO_DROP
Sithra Shield puzzle item
Healer Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[29].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_potion (.3 .3 1) (-3 -3 -10) (3 3 10)  x  NO_DROP
Potion puzzle item
Healer Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[30].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_plazacontainer (.3 .3 1) (-6 -6 -8) (6 6 6)  x  NO_DROP
Container puzzle item
Plaza Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[31].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_slumcontainer (.3 .3 1) (-6 -6 -8) (6 6 6)  x  NO_DROP
Full Container puzzle item
Slum Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[32].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_crystal (.3 .3 1) (-16 -16 -16) (16 16 16)  x  NO_DROP
Crystal puzzle item
Academic Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[33].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_canyonkey (.3 .3 1) (-16 -16 -16) (16 16 16)  x  NO_DROP
Key puzzle item
Canyon Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[34].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_hive2amulet (.3 .3 1) (-16 -16 -16) (16 16 16)  x  NO_DROP
Amulet puzzle item
Hive 2 Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[35].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_hive2spear (.3 .3 1) (-16 -16 -16) (16 16 16)  x  NO_DROP
Spear puzzle item
Hive 2 Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[36].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_hive2gem (.3 .3 1) (-16 -16 -16) (16 16 16)  x  NO_DROP
Gem puzzle item
Hive 2 Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[37].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_minecartwheel (.3 .3 1) (-1 -6 -6) (1 6 6)  x  NO_DROP
Mine Cart Wheel puzzle item
Mine 1 Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[38].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_ore (.3 .3 1) (-10 -10 -8) (10 10 8)  x  NO_DROP
Unrefined Ore puzzle item
Mine 2 Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[39].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_refinedore (.3 .3 1) (-3 -12 -2) (3 12 2) x   NO_DROP
Refined Ore puzzle item
Mine 2 Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[40].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_dungeonkey (.3 .3 1) (-1 -18 -9) (1 18 9)  x  NO_DROP
Amulet puzzle item
Dungeon Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[41].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_cloudkey (.3 .3 1) (-8 -8 -3) (8 8 6)  x  NO_DROP
Key puzzle item
Cloud Quarters 2 Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[42].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_highpriestesskey (.3 .3 1) (-12 -12 -6) (12 12 6) x   NO_DROP
Key puzzle item
High Priestess Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[43].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_highpriestesssymbol (.3 .3 1) (-12 -12 -4) (12 12 4) x   NO_DROP
Key puzzle item
High Priestess Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[44].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_tome (.3 .3 1) (-12 -12 -4) (12 12 4)  x  NO_DROP
Tome puzzle piece
2 Cloud Levels
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[45].pickup = Pickup_Puzzle;

/*QUAKED item_puzzle_tavernkey (.3 .3 1) (-8 -8 -4) (8 8 4)    x   NO_DROP
Key puzzle piece
Ssdocks Level
NO_DROP - won't drop to ground
*/
	playerExport.p_itemlist[46].pickup = Pickup_Puzzle;

	// item_defense_tornado
/*QUAKED item_defense_tornado (.3 .3 1) (-16 -16 -16) (16 16 16)   COOP_ONLY
Pickup for the Tornado defensive spell.
*/
	playerExport.p_itemlist[47].pickup=Pickup_Defense;
	playerExport.p_itemlist[47].use=Use_Defence;
	playerExport.p_itemlist[47].weaponthink=DefenceThink_Tornado;

	// ********************************************************************************************
	// Initialise game variables.
	// ********************************************************************************************

	game.num_items=playerExport.p_num_items;
}

/*
===============
SetItemNames - called by worldspawn.
===============
*/

void SetItemNames(void)
{
	int		i;
	gitem_t	*it;

	for (i=0 ; i<game.num_items ; i++)
	{
		it = &playerExport.p_itemlist[i];
		gi.configstring (CS_ITEMS+i, it->pickup_name);
	}
}