From 2311964b820d0adcf5ed5e25c54bf98393c1e178 Mon Sep 17 00:00:00 2001 From: sk89q Date: Thu, 27 Mar 2014 20:47:25 -0700 Subject: [PATCH] Added RegionMaskFilter to filter a RegionFunction. --- .../worldedit/operation/RegionMaskFilter.java | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 src/main/java/com/sk89q/worldedit/operation/RegionMaskFilter.java diff --git a/src/main/java/com/sk89q/worldedit/operation/RegionMaskFilter.java b/src/main/java/com/sk89q/worldedit/operation/RegionMaskFilter.java new file mode 100644 index 000000000..6a8640401 --- /dev/null +++ b/src/main/java/com/sk89q/worldedit/operation/RegionMaskFilter.java @@ -0,0 +1,57 @@ +/* + * WorldEdit, a Minecraft world manipulation toolkit + * Copyright (C) sk89q + * 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 . + */ + +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; + } + } + +}