/*
* This file is part of Skript.
*
* Skript 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 3 of the License, or
* (at your option) any later version.
*
* Skript 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 Skript. If not, see <http://www.gnu.org/licenses/>.
*
*
* Copyright 2011, 2012 Peter Güttinger
*
*/
package ch.njol.skript.conditions;
import org.bukkit.event.Event;
import org.bukkit.event.entity.EntityDamageEvent.DamageCause;
import org.eclipse.jdt.annotation.Nullable;
import ch.njol.skript.Skript;
import ch.njol.skript.doc.Description;
import ch.njol.skript.doc.Examples;
import ch.njol.skript.doc.Name;
import ch.njol.skript.doc.Since;
import ch.njol.skript.expressions.base.EventValueExpression;
import ch.njol.skript.lang.Condition;
import ch.njol.skript.lang.Expression;
import ch.njol.skript.lang.SkriptParser.ParseResult;
import ch.njol.util.Checker;
import ch.njol.util.Kleenean;
/**
* @author Peter Güttinger
*/
@Name("Damage Cause")
@Description("Tests what kind of damage caused a <a href='../events/#damage'>damage event</a>. Refer to the <a href='../classes/#damagecause'>Damage Cause</a> type for a list of all possible causes.")
@Examples({"# make players use their potions of fire resistance whenever they take any kind of fire damage",
"on damage:",
" damage was caused by lava, fire or burning",
" victim is a player",
" victim has a potion of fire resistance",
" cancel event",
" apply fire resistance to the victim for 30 seconds",
" remove 1 potion of fire resistance from the victim",
"# prevent mobs from dropping items under certain circumstances",
"on death;",
" entity is not a player",
" damage wasn't caused by a block explosion, an attack, a projectile, a potion, fire, burning, thorns or poison",
" clear drops"})
@Since("2.0")
public class CondDamageCause extends Condition {
static {
Skript.registerCondition(CondDamageCause.class, "[the] damage (was|is|has)(0¦|1¦n('|o)t) [been] (caused|done|made) by %damagecause%");
}
@SuppressWarnings("null")
private Expression<DamageCause> cause, expected;
@SuppressWarnings({"unchecked", "null"})
@Override
public boolean init(final Expression<?>[] exprs, final int matchedPattern, final Kleenean isDelayed, final ParseResult parseResult) {
cause = new EventValueExpression<DamageCause>(DamageCause.class);
expected = (Expression<DamageCause>) exprs[0];
setNegated(parseResult.mark == 1);
return ((EventValueExpression<DamageCause>) cause).init();
}
@Override
public boolean check(final Event e) {
final DamageCause c = cause.getSingle(e);
if (c == null)
return false;
return expected.check(e, new Checker<DamageCause>() {
@Override
public boolean check(final DamageCause o) {
return c == o;
}
}, isNegated());
}
@Override
public String toString(final @Nullable Event e, final boolean debug) {
return "damage was" + (isNegated() ? " not" : "") + " caused by " + expected.toString(e, debug);
}
}