Added RegionMaskFilter to filter a RegionFunction.

Dieser Commit ist enthalten in:
sk89q 2014-03-27 20:47:25 -07:00
Ursprung 8c3912b5e7
Commit 2311964b82

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@ -0,0 +1,57 @@
/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team and contributors
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.operation;
import com.sk89q.worldedit.EditSession;
import com.sk89q.worldedit.Vector;
import com.sk89q.worldedit.WorldEditException;
import com.sk89q.worldedit.masks.Mask;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Passes positions that match the given mask onto the provided function.
*/
public class RegionMaskFilter implements RegionFunction {
private final EditSession editSession;
private final Mask mask;
private final RegionFunction function;
public RegionMaskFilter(EditSession editSession, Mask mask, RegionFunction function) {
checkNotNull(function, "function must not be null");
checkNotNull(editSession, "editSession must not be null");
checkNotNull(mask, "mask must not be null");
this.editSession = editSession;
this.mask = mask;
this.function = function;
}
@Override
public boolean apply(Vector position) throws WorldEditException {
if (mask.matches(editSession, position)) {
return function.apply(position);
} else {
return false;
}
}
}