Package ch.njol.skript.expressions

Source Code of ch.njol.skript.expressions.ExprTime

/*
*   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 2011-2014 Peter Güttinger
*
*/

package ch.njol.skript.expressions;

import org.bukkit.World;
import org.bukkit.event.Event;
import org.eclipse.jdt.annotation.Nullable;

import ch.njol.skript.Skript;
import ch.njol.skript.classes.Changer.ChangeMode;
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.PropertyExpression;
import ch.njol.skript.lang.Expression;
import ch.njol.skript.lang.ExpressionType;
import ch.njol.skript.lang.SkriptParser.ParseResult;
import ch.njol.skript.registrations.Classes;
import ch.njol.skript.util.Getter;
import ch.njol.skript.util.Time;
import ch.njol.skript.util.Timespan;
import ch.njol.util.Kleenean;
import ch.njol.util.coll.CollectionUtils;

/**
* @author Peter Güttinger
*/
@Name("Time")
@Description("The <a href='../classes/#time'>time</a> of a world.")
@Examples({"time in world is between 18:00 and 6:00:",
    "  broadcast \"It's night-time, watch out for monsters!\""})
@Since("1.0")
public class ExprTime extends PropertyExpression<World, Time> {
  static {
    Skript.registerExpression(ExprTime.class, Time.class, ExpressionType.PROPERTY, "[the] time [(in|of) %worlds%]", "%worlds%'[s] time");
  }
 
  @SuppressWarnings({"unchecked", "null"})
  @Override
  public boolean init(final Expression<?>[] exprs, final int matchedPattern, final Kleenean isDelayed, final ParseResult parser) {
    setExpr((Expression<World>) exprs[0]);
    return true;
  }
 
  @Override
  protected Time[] get(final Event e, final World[] source) {
    return get(source, new Getter<Time, World>() {
      @Override
      public Time get(final World w) {
        return new Time((int) w.getTime());
      }
    });
  }
 
  @SuppressWarnings("unchecked")
  @Override
  @Nullable
  public Class<?>[] acceptChange(final ChangeMode mode) {
    switch (mode) {
      case ADD:
      case REMOVE:
        return CollectionUtils.array(Timespan.class);
      case SET:
        return CollectionUtils.array(Time.class);
      case DELETE:
      case REMOVE_ALL:
      case RESET:
      default:
        return null;
    }
  }
 
  @Override
  public void change(final Event e, final @Nullable Object[] delta, final ChangeMode mode) {
    final World[] worlds = getExpr().getArray(e);
    int mod = 1;
    switch (mode) {
      case SET:
        assert delta != null;
        final Time time = (Time) delta[0];
        for (final World w : worlds) {
          w.setTime(time.getTicks());
        }
        break;
      case REMOVE:
        mod = -1;
        //$FALL-THROUGH$
      case ADD:
        assert delta != null;
        final Timespan ts = (Timespan) delta[0];
        for (final World w : worlds) {
          w.setTime(w.getTime() + mod * ts.getTicks());
        }
        break;
      case DELETE:
      case REMOVE_ALL:
      case RESET:
        assert false;
    }
  }
 
  @Override
  public Class<Time> getReturnType() {
    return Time.class;
  }
 
  @Override
  public String toString(final @Nullable Event e, final boolean debug) {
    if (e == null)
      return "the time in " + getExpr().toString(e, debug);
    return Classes.getDebugMessage(getAll(e));
  }
 
}
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