Olof Larsson
80 lines
1.9 KiB
Java
80 lines
1.9 KiB
Java
package org.mcteam.ancientgates.util;
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import java.util.HashSet;
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import java.util.Set;
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import org.bukkit.Material;
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import org.bukkit.block.Block;
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import org.bukkit.block.BlockFace;
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import org.mcteam.ancientgates.Conf;
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public class FloodUtil {
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private static final Set<BlockFace> exp1 = new HashSet<BlockFace>();
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private static final Set<BlockFace> exp2 = new HashSet<BlockFace>();
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static {
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exp1.add(BlockFace.UP);
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exp1.add(BlockFace.DOWN);
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exp1.add(BlockFace.EAST);
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exp1.add(BlockFace.WEST);
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exp2.add(BlockFace.UP);
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exp2.add(BlockFace.DOWN);
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exp2.add(BlockFace.NORTH);
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exp2.add(BlockFace.SOUTH);
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}
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// For the same frame and location this set of blocks is deterministic
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public static Set<Block> getGateFrameBlocks(Block block) {
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Set<Block> blocks1 = getAirFloodBlocks(block, new HashSet<Block>(), exp1, Conf.getGateMaxArea());
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Set<Block> blocks2 = getAirFloodBlocks(block, new HashSet<Block>(), exp2, Conf.getGateMaxArea());
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if (blocks1 == null && blocks2 == null) {
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return null;
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}
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if (blocks1 == null) {
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return blocks2;
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}
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if (blocks2 == null) {
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return blocks1;
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}
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if (blocks1.size() > blocks2.size()) {
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return blocks2;
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}
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return blocks1;
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}
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public static Set<Block> getAirFloodBlocks(Block startBlock, Set<Block> foundBlocks, Set<BlockFace> expandFaces, int limit) {
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if (foundBlocks == null) {
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return null;
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}
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if (foundBlocks.size() > limit) {
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return null;
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}
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if (foundBlocks.contains(startBlock)) {
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return foundBlocks;
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}
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if (startBlock.getType() == Material.AIR || startBlock.getType() == Material.PORTAL) {
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// ... We found a block :D ...
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foundBlocks.add(startBlock);
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// ... And flood away !
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for (BlockFace face : expandFaces) {
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Block potentialBlock = startBlock.getFace(face);
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foundBlocks = getAirFloodBlocks(potentialBlock, foundBlocks, expandFaces, limit);
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}
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}
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return foundBlocks;
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}
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}
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