Plex-FAWE/src/main/java/com/sk89q/worldedit/function/GroundFunction.java

65 lines
2.3 KiB
Java
Raw Normal View History

/*
* 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.function;
import com.sk89q.worldedit.Vector;
import com.sk89q.worldedit.Vector2D;
import com.sk89q.worldedit.WorldEditException;
import com.sk89q.worldedit.regions.search.GroundSearch;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Accepts 2D coordinates to columns, finds the first ground block in each
* column, and applies the given {@link RegionFunction} onto the ground blocks.
*/
public class GroundFunction implements FlatRegionFunction {
private final RegionFunction function;
private GroundSearch groundSearch;
private int minY;
private int maxY;
/**
* Create a new instance.
*
* @param groundSearch the ground search implementation
* @param minY the minimum Y (inclusive)
* @param maxY the maximum Y (inclusive)
* @param function the function to apply on ground blocks
*/
public GroundFunction(GroundSearch groundSearch, int minY, int maxY, RegionFunction function) {
checkNotNull(function);
checkNotNull(groundSearch);
checkArgument(minY <= maxY, "minY <= maxY required");
this.function = function;
this.groundSearch = groundSearch;
this.minY = minY;
this.maxY = maxY;
}
@Override
public boolean apply(Vector2D pt) throws WorldEditException {
Vector ground = groundSearch.findGround(pt.toVector(maxY), minY);
return ground != null && function.apply(ground);
}
}