/*
* 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.expressions;
import java.lang.reflect.Array;
import org.bukkit.event.Event;
import org.eclipse.jdt.annotation.Nullable;
import ch.njol.skript.lang.Expression;
import ch.njol.skript.lang.Literal;
import ch.njol.skript.lang.SkriptParser.ParseResult;
import ch.njol.skript.lang.Unit;
import ch.njol.skript.lang.util.SimpleExpression;
import ch.njol.util.Kleenean;
/**
* @author Peter Güttinger
*/
public class ExprValue extends SimpleExpression<Unit> {
// static { // REMIND add this (>2.0)
// Skript.registerExpression(ExprValue.class, Unit.class, ExpressionType.PATTERN_MATCHES_EVERYTHING, "%~number% %*unit%");
// }
@SuppressWarnings("null")
private Expression<Number> amount;
@SuppressWarnings("null")
private Unit unit;
@SuppressWarnings({"unchecked", "null"})
@Override
public boolean init(final Expression<?>[] exprs, final int matchedPattern, final Kleenean isDelayed, final ParseResult parseResult) {
amount = (Expression<Number>) exprs[0];
unit = ((Literal<Unit>) exprs[1]).getSingle();
return true;
}
@Override
@Nullable
protected Unit[] get(final Event e) {
final Number a = amount.getSingle(e);
if (a == null)
return null;
final Unit u = unit.clone();
u.setAmount(a.doubleValue());
final Unit[] one = (Unit[]) Array.newInstance(unit.getClass(), 1);
one[0] = u;
return one;
}
@Override
public boolean isSingle() {
return true;
}
@SuppressWarnings("null")
@Override
public Class<? extends Unit> getReturnType() {
return unit.getClass();
}
@Override
public String toString(final @Nullable Event e, final boolean debug) {
return amount.toString(e, debug) + " " + unit.toString();
}
}