sin-2015/item.cpp

// Copyright (C) 1997 by Ritual Entertainment, Inc.
// All rights reserved.
//
// This source is may not be distributed and/or modified without
// expressly written permission by Ritual Entertainment, Inc.
//
// DESCRIPTION:
// Base class for respawnable, carryable objects.
// 

#include "g_local.h"
#include "entity.h"
#include "trigger.h"
#include "item.h"
#include "inventoryitem.h"
#include "scriptmaster.h"
#include "health.h"

Event EV_Item_Pickup( "item_pickup" );
Event EV_Item_DropToFloor( "droptofloor" );
Event EV_Item_Respawn( "respawn" );
Event EV_Item_SetAmount( "amount" );
Event EV_Item_SetMaxAmount( "maxamount" );
Event EV_Item_SetIconName( "iconname" );
Event EV_Item_SetItemName( "itemname" );
Event EV_Item_RespawnSound( "respawnsound" );
Event EV_Item_DialogNeeded( "dialogneeded" );

CLASS_DECLARATION( Trigger, Item, NULL );

ResponseDef Item::Responses[] =
	{
		{ &EV_Trigger_Effect,	   ( Response )Item::ItemTouch },
	   { &EV_Item_DropToFloor,	   ( Response )Item::DropToFloor },
	   { &EV_Item_Respawn,		   ( Response )Item::Respawn },
	   { &EV_Item_SetAmount,      ( Response )Item::SetAmount },
	   { &EV_Item_SetMaxAmount,   ( Response )Item::SetMaxAmount },
	   { &EV_Item_SetIconName,    ( Response )Item::SetIconName },
      { &EV_Item_SetItemName,    ( Response )Item::SetItemName },
	   { &EV_Item_Pickup,			( Response )Item::Pickup },
      { &EV_Use,		            ( Response )Item::TriggerStuff },
      { &EV_Item_RespawnSound,   ( Response )Item::RespawnSound },
      { &EV_Item_DialogNeeded,   ( Response )Item::DialogNeeded },
		{ NULL, NULL }
	};

Item::Item()
	{
   str fullname;
   Vector defangles;

	setRespawnTime( 20 );
	setRespawn( false );

	setSolidType( SOLID_NOT );

	// Set default respawn behavior
	// Derived classes should use setRespawn
	// if they want to override the default behavior
	if ( deathmatch->value )
		{
		setRespawn( true );
		}
	else
		{
		setRespawn( false );
		}

   edict->s.renderfx |= RF_GLOW;

   // angles
   defangles = Vector( 0, G_GetFloatArg( "angle", 0 ), 0 );
   if (defangles.y == -1)
      {
      defangles = Vector( -90, 0, 0 );
      }
   else if (defangles.y == -2)
      {
      defangles = Vector( 90, 0, 0 );
      }
   angles = G_GetVectorArg( "angles", defangles );
	setAngles( angles );

   //
   // we want the bounds of this model auto-rotated
   //
   flags |= FL_ROTATEDBOUNDS;

   //
   // rotate the mins and maxs for the model
   //
   if ( size.length() < 10 )
	   setSize( "-10 -10 0", "10 10 20" );

   //
   // reset the mins and maxs to pickup the FL_ROTATEDBOUNDS flag
   //
   setSize( mins, maxs );

   if ( !LoadingSavegame )
      {
	   // Items can't be immediately dropped to floor, because they might
	   // be on an entity that hasn't spawned yet.
	   PostEvent( EV_Item_DropToFloor, 0 );
      }

//### so players can pick up stuff while on a hoverbike
//	respondto = TRIGGER_PLAYERS;
	respondto = TRIGGER_PLAYERS | TRIGGER_HOVERBIKES;

   icon_name = str("");
   icon_index = 0;
   item_index = 0;
   maximum_amount = 1;
   playrespawn = false;

   amount_override = false;
   amount = 1;

   // FIXME
   // If the targetname is set by the spawn args, then this item
   // will have a targetname.  If we try to remove the owner of this
   // item, then we will remove the owner, then try to remove the item
   // which will already have been removed by the previous event.
   // This doesn't allow any items to have a targetname.
   SetTargetName( "" );

   // Using itemname as a temporary fix to this problem
   itemname = G_GetSpawnArg( "itemname", "");

   if ( G_GetSpawnArg( "amount" ) )
      {
      amount = G_GetIntArg( "amount" );
      if ( amount >= MaxAmount() )
         {
         SetMax( amount );
         }
      amount_override = true;
      }
	}

Item::~Item()
	{
	if ( owner )
		{
		owner->RemoveItem( this );
		owner = NULL;
		}
	}

void Item::CreateSpawnArgs
   (
   void
   )

   {
   G_SetIntArg( "amount", amount );
   G_SetSpawnArg( "model", model.c_str() );
   }

/*
============
PlaceItem

Puts an item back in the world
============
*/
void Item::PlaceItem
	(
	void
	)

	{
	setSolidType( SOLID_TRIGGER );
	setMoveType( MOVETYPE_TOSS );
	showModel();

   edict->s.renderfx |= RF_GLOW;
	groundentity = NULL;
	}

/*
============
DropToFloor

plants the object on the floor
============
*/
void Item::DropToFloor
	(
	Event *ev
	)

	{
   str fullname;
	Vector save;

	PlaceItem();

	setOrigin( origin + "0 0 1" );
	save = origin;
	if ( !droptofloor( 8192 ) )
		{
		gi.dprintf( "%s fell out of level at '%5.1f %5.1f %5.1f'\n", 
			getClassID(), origin.x, origin.y, origin.z );
		PostEvent( EV_Remove, 0 );
		return;
		}
   //
   // if the our global variable doesn't exist, lets zero it out
   //
   fullname = str( "playeritem_" ) + getClassname();
   if ( !gameVars.VariableExists( fullname.c_str() ) )
      {
      gameVars.SetVariable( fullname.c_str(), 0 );
      }

   if ( !levelVars.VariableExists( fullname.c_str() ) )
      {
      levelVars.SetVariable( fullname.c_str(), 0 );
      }

	setOrigin( save );
	groundentity = NULL;
	}

qboolean Item::Drop
	(
	void
	)

	{
	if ( !owner )
		{
		return false;
		}

	setOrigin( owner->worldorigin + "0 0 40" );

	// drop the item
	PlaceItem();
	velocity = owner->velocity * 0.5 + Vector( G_CRandom( 50 ), G_CRandom( 50 ), 100 );
	setAngles( owner->angles );
	avelocity = Vector( 0, G_CRandom( 360 ), 0 );

   trigger_time = level.time + 1;

	if ( owner->isClient() )
		{
		spawnflags |= DROPPED_PLAYER_ITEM;
		}
	else
		{
		spawnflags |= DROPPED_ITEM;
		}

   // Remove this from the owner's item list
   owner->RemoveItem( this );
	owner = NULL;

	return true;
	}


void Item::ItemTouch
	(
	Event *ev
	)

	{
	Entity	*other;
	Event		*e;

	if ( owner )
		{
		// Don't respond to trigger events after item is picked up.
		gi.dprintf( "%s with targetname of %s was triggered unexpectedly.\n", getClassID(), TargetName() );
		return;
		}

	other = ev->GetEntity( 1 );

	e = new Event( EV_Item_Pickup );
	e->AddEntity( other );
	ProcessEvent( e );
	}

void Item::SetOwner
	(
	Sentient *ent
	)

	{
	assert( ent );
	if ( !ent )
		{
		// return to avoid any buggy behaviour
		return;
		}

   owner = ent;
	setRespawn( false );

   edict->s.renderfx &= ~RF_GLOW;
	setSolidType( SOLID_NOT );
	hideModel();
	CancelEventsOfType( EV_Item_DropToFloor );
	CancelEventsOfType( EV_Remove );
//	ItemPickup( ent );
	}

Item * Item::ItemPickup
	(
	Entity *other
	)

	{
   Sentient * sent;
   Item * item;
	str realname;

   if ( !Pickupable( other ) )
		{
		return NULL;
		}

   sent = ( Sentient * )other;

   item = sent->giveItem( getClassname(), Amount(), icon_index );

   if ( !item )
      return NULL;

	realname = GetRandomAlias( "snd_pickup" );
   if ( realname.length() > 1 )
      sent->sound( realname, 1, CHAN_ITEM, ATTN_NORM );

	if ( !Removable() )
		{
		// leave the item for others to pickup
		return item;
		}

	CancelEventsOfType( EV_Item_DropToFloor );
	CancelEventsOfType( EV_Item_Respawn );
   CancelEventsOfType( EV_FadeOut );

	setSolidType( SOLID_NOT );
	hideModel();


	if ( Respawnable() )
		{
		PostEvent( EV_Item_Respawn, RespawnTime() );
		}
	else
		{
		PostEvent( EV_Remove, 0.1 );
		}

   if ( DM_FLAG( DF_INSTANT_ITEMS ) )
		{
      Event *ev;

      ev = new Event( EV_InventoryItem_Use );
      ev->AddEntity( other );

      item->ProcessEvent( ev );
		}

   return item;
	}

void Item::Respawn
	(
	Event *ev
	)

	{
	showModel();

	// allow it to be touched again
	setSolidType( SOLID_TRIGGER );

	// play respawn sound
   if ( playrespawn )
      {
   	RandomGlobalSound( "snd_itemspawn" );
      }

	setOrigin( origin );
	};

void Item::setRespawn
	( 
	qboolean flag 
	)

	{
	respawnable = flag;
	}

qboolean Item::Respawnable
	( 
	void 
	)

	{
	return respawnable;
	}

void Item::setRespawnTime
	( 
	float time 
	)

	{
	respawntime = time;
	}

float Item::RespawnTime
	( 
	void 
	)

	{
	return respawntime;
	}

int Item::Amount
   (
   void
   )

   {
   return amount;
   }

int Item::MaxAmount
   (
   void
   )

   {
   return maximum_amount;
   }

qboolean Item::Pickupable
   (
   Entity *other
   )

   {
	if ( !other->isSubclassOf( Sentient ) )
		{
		return false;
		}
   else
      {
      Sentient * sent;
      Item * item;

      sent = ( Sentient * )other;
      item = sent->FindItem( getClassname() );

      if ( item && ( item->Amount() >= item->MaxAmount() ) )
         {
         return false;
         }

      // Mutants can't pick up anything but health
      if ( other->flags & (FL_MUTANT|FL_SP_MUTANT) && !( this->isSubclassOf( Health ) ) )
         {
         return false;
         }

      // If deathmatch and already in a powerup, don't pickup anymore when DF_INSTANT_ITEMS is on
      if ( DM_FLAG( DF_INSTANT_ITEMS ) &&
           this->isSubclassOf( InventoryItem ) &&
           sent->PowerupActive()
         )
         {
         return false;
         }
      }
   return true;
   }

void Item::Pickup
	(
   Event * ev
	)

	{
	ItemPickup( ev->GetEntity( 1 ) );
   }

void Item::setIcon
   (
   const char *i
   )

   {
   icon_name = i;
   icon_index = gi.imageindex( i );
   }

void Item::setName
   (
   const char *i
   )

   {
   item_name = i;
   item_index = gi.itemindex( i );
   }

int Item::Icon
   (
   void
   )

   {
   if ( icon_name.length() )
      return icon_index;
   else
      return -1;
   }

void Item::Set
	(
	int startamount
	)

	{
   if ( !amount_override )
      {
      amount = startamount;
      if ( amount >= MaxAmount() )
         SetMax( amount );
      }
   }

void Item::SetMax
	(
	int maxamount
	)

	{
   maximum_amount = maxamount;
   }

void Item::SetAmount
	(
	Event *ev
	)

	{
	Set( ev->GetInteger( 1 ) );
   }

void Item::SetMaxAmount
	(
	Event *ev
	)

	{
	SetMax( ev->GetInteger( 1 ) );
   }

void Item::SetIconName
	(
	Event *ev
	)

	{
   setIcon( ev->GetString( 1 ) );
	}

void Item::SetItemName
	(
	Event *ev
	)

	{
   setName( ev->GetString( 1 ) );
	}

void Item::Add
	(
	int num
	)

	{
	amount += num;
   if ( amount >= MaxAmount() )
      amount = MaxAmount();
	}

void Item::Remove
   (
   int num
   )
   {
   amount -= num;
   if (amount < 0)
      amount = 0;
   }


qboolean Item::Use
	(
	int num
	)

	{
	if ( num > amount )
		{
		return false;
		}

	amount -= num;
	return true;
	}

qboolean Item::Removable
	( 
	void 
	)

	{
   return true;
	}

void Item::RespawnSound
	(
	Event *ev
	)

	{
   playrespawn = true;
   }

void Item::DialogNeeded
	(
	Event *ev
	)

	{
   //
   // if this item is needed for a trigger, play this dialog
   //
   dialog_needed = ev->GetString( 1 );
   }

str Item::GetDialogNeeded
	(
   void
	)

	{
   return dialog_needed;
   }