package com.planet_ink.coffee_mud.Abilities.Traps;
import com.planet_ink.coffee_mud.core.interfaces.*;
import com.planet_ink.coffee_mud.core.*;
import com.planet_ink.coffee_mud.Abilities.interfaces.*;
import com.planet_ink.coffee_mud.Areas.interfaces.*;
import com.planet_ink.coffee_mud.Behaviors.interfaces.*;
import com.planet_ink.coffee_mud.CharClasses.interfaces.*;
import com.planet_ink.coffee_mud.Commands.interfaces.*;
import com.planet_ink.coffee_mud.Common.interfaces.*;
import com.planet_ink.coffee_mud.Exits.interfaces.*;
import com.planet_ink.coffee_mud.Items.interfaces.*;
import com.planet_ink.coffee_mud.Locales.interfaces.*;
import com.planet_ink.coffee_mud.MOBS.interfaces.*;
import com.planet_ink.coffee_mud.Races.interfaces.*;

import java.util.*;

/* 
   Copyright 2000-2006 Bo Zimmerman

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/
public class Trap_PoisonGas extends StdTrap
{
	public String ID() { return "Trap_PoisonGas"; }
	public String name(){ return "poison gas";}
	protected int canAffectCode(){return Ability.CAN_EXITS|Ability.CAN_ITEMS;}
	protected int canTargetCode(){return 0;}
	protected int trapLevel(){return 17;}
	public String requiresToSet(){return "some poison";}

	public Vector returnOffensiveAffects(Environmental fromMe)
	{
		Vector offenders=new Vector();

		for(int a=0;a<fromMe.numEffects();a++)
		{
			Ability A=fromMe.fetchEffect(a);
			if((A!=null)&&((A.classificationCode()&Ability.ALL_ACODES)==Ability.ACODE_POISON))
				offenders.addElement(A);
		}
		return offenders;
	}

	protected Item getPoison(MOB mob)
	{
		if(mob==null) return null;
		if(mob.location()==null) return null;
		for(int i=0;i<mob.location().numItems();i++)
		{
			Item I=mob.location().fetchItem(i);
			if((I!=null)
			&&(I instanceof Drink))
			{
				Vector V=returnOffensiveAffects(I);
				if(V.size()>0)
					return I;
			}
		}
		return null;
	}

	public Trap setTrap(MOB mob, Environmental E, int trapBonus, int qualifyingClassLevel)
	{
		if(E==null) return null;
		Item I=getPoison(mob);
		if(I!=null){
			Vector V=returnOffensiveAffects(I);
			if(V.size()>0)
				setMiscText(((Ability)V.firstElement()).ID());
			I.destroy();
		}
		return super.setTrap(mob,E,trapBonus,qualifyingClassLevel);
	}

	public boolean canSetTrapOn(MOB mob, Environmental E)
	{
		if(!super.canSetTrapOn(mob,E)) return false;
		Item I=getPoison(mob);
		if((I==null)
		&&(mob!=null))
		{
			mob.tell("You'll need to set down some poison first.");
			return false;
		}
		return true;
	}
	public void spring(MOB target)
	{
		if((target!=invoker())&&(target.location()!=null))
		{
			if(CMLib.dice().rollPercentage()<=target.charStats().getSave(CharStats.STAT_SAVE_TRAPS))
				target.location().show(target,null,null,CMMsg.MASK_ALWAYS|CMMsg.MSG_NOISE,"<S-NAME> avoid(s) setting off a gas trap!");
			else
			if(target.location().show(target,target,this,CMMsg.MASK_ALWAYS|CMMsg.MSG_NOISE,"<S-NAME> set(s) off a trap! The room fills with gas!"))
			{
				super.spring(target);
				Ability A=CMClass.getAbility(text());
				if(A==null) A=CMClass.getAbility("Poison");
				for(int i=0;i<target.location().numInhabitants();i++)
				{
					MOB M=target.location().fetchInhabitant(i);
					if((M!=null)&&(M!=invoker())&&(A!=null))
						if(invoker().mayIFight(M))
							A.invoke(invoker(),M,true,0);
				}
				if((canBeUninvoked())&&(affected instanceof Item))
					disable();
			}
		}
	}
}
