Initial Release

src/net/mcbat/doorsopendoors/DoorsOpenDoors.java

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+package net.mcbat.doorsopendoors;
+
+import java.util.logging.Logger;
+
+import net.mcbat.doorsopendoors.listeners.DoorsOpenDoorsPlayerListener;
+
+import org.bukkit.plugin.java.JavaPlugin;
+
+public class DoorsOpenDoors extends JavaPlugin {
+	private final Logger _logger = Logger.getLogger("minecraft");
+	
+	@Override
+	public void onEnable() {
+		_logger.info("[Doors Open Doors] v"+this.getDescription().getVersion()+" (Helium) enabled.");
+		_logger.info("[Doors Open Doors] Developed by: [Mattera, Steven (IchigoKyger)].");
+		_logger.info("[Doors Open Doors] Based on: Kassoon's single player mod.");
+
+		(new DoorsOpenDoorsPlayerListener(this)).registerEvents();
+	}
+	
+	@Override
+	public void onDisable() {
+		_logger.info("[Doors Open Doors] v"+this.getDescription().getVersion()+" (Helium) disabled.");
+	}
+	
+	public Logger getMinecraftLogger() {
+		return _logger;
+	}
+}

src/net/mcbat/doorsopendoors/listeners/DoorsOpenDoorsPlayerListener.java

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+package net.mcbat.doorsopendoors.listeners;
+
+import net.mcbat.doorsopendoors.DoorsOpenDoors;
+
+import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.block.BlockFace;
+import org.bukkit.event.Event;
+import org.bukkit.event.Event.Priority;
+import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.event.player.PlayerListener;
+
+public class DoorsOpenDoorsPlayerListener extends PlayerListener {
+	private final DoorsOpenDoors _plugin;
+	
+	public DoorsOpenDoorsPlayerListener(DoorsOpenDoors plugin) {
+		_plugin = plugin;
+	}
+	
+	public void registerEvents() {
+		_plugin.getServer().getPluginManager().registerEvent(Event.Type.PLAYER_INTERACT, this, Priority.Highest, _plugin);
+	}
+	
+	public void onPlayerInteract(PlayerInteractEvent event) {
+		if (event.isCancelled())
+			return;
+		
+		if (event.getClickedBlock().getType() == Material.WOODEN_DOOR) {
+			Block doorBlock = event.getClickedBlock();
+			Block otherDoorTopBlock = null;
+			Block otherDoorBottomBlock = null;
+
+			if (this.doorIsTopHalf(doorBlock.getData()))
+				doorBlock = doorBlock.getRelative(BlockFace.DOWN);
+			
+			if (doorBlock.getRelative(BlockFace.NORTH).getType() == Material.WOODEN_DOOR && doorIsConnected(doorBlock.getData(), doorBlock.getRelative(BlockFace.NORTH).getData())) {
+				otherDoorBottomBlock = doorBlock.getRelative(BlockFace.NORTH);
+			}
+			else if (doorBlock.getRelative(BlockFace.SOUTH).getType() == Material.WOODEN_DOOR && doorIsConnected(doorBlock.getData(), doorBlock.getRelative(BlockFace.SOUTH).getData())) {
+				otherDoorBottomBlock = doorBlock.getRelative(BlockFace.SOUTH);
+			}
+			else if (doorBlock.getRelative(BlockFace.EAST).getType() == Material.WOODEN_DOOR && doorIsConnected(doorBlock.getData(), doorBlock.getRelative(BlockFace.EAST).getData())) {
+				otherDoorBottomBlock = doorBlock.getRelative(BlockFace.EAST);
+			}
+			else if (doorBlock.getRelative(BlockFace.WEST).getType() == Material.WOODEN_DOOR && doorIsConnected(doorBlock.getData(), doorBlock.getRelative(BlockFace.WEST).getData())) {
+				otherDoorBottomBlock = doorBlock.getRelative(BlockFace.WEST);
+			}
+
+			if (otherDoorBottomBlock != null) {
+				otherDoorTopBlock = otherDoorBottomBlock.getRelative(BlockFace.UP);
+				
+				if (this.doorIsOpen(doorBlock.getData()) != this.doorIsOpen(otherDoorTopBlock.getData())) {
+					otherDoorTopBlock.setData(flipDoor(otherDoorTopBlock.getData()));
+					otherDoorBottomBlock.setData(flipDoor(otherDoorBottomBlock.getData()));
+				}
+			}
+		}
+	}
+	
+	private boolean doorIsConnected(byte data, byte data2) {
+		int f1 = -1, f2 = -1, h1 = -1, h2 = -1;
+
+		f1 = (data & 0x3);
+		f2 = (data2 & 0x3);
+		
+		if ((data & 0x3) == 0x3)		h1 = 3;
+		else if ((data & 0x1) == 0x1)	h1 = 1;
+		else if ((data & 0x2) == 0x2)	h1 = 2;
+		else							h1 = 0;
+
+		if ((data2 & 0x3) == 0x3)		h2 = 3;
+		else if ((data2 & 0x1) == 0x1)	h2 = 1;
+		else if ((data2 & 0x2) == 0x2)	h2 = 2;
+		else							h2 = 0;
+		
+		
+		if (f1 == f2 && f2 == h1 && h1 == h2)
+			return false;
+		
+		if (f1 == h1 && f2 == h2)
+			return true;
+		
+		return false;
+	}
+	
+	private boolean doorIsTopHalf(byte data) {
+		return ((data & 0x8) == 0x8);
+	}
+	
+	private boolean doorIsOpen(byte data) {
+		return ((data & 0x4) == 0x4);
+	}
+	
+	private byte flipDoor(byte data) {
+		return (byte) (doorIsOpen(data) ? (data & ~0x4) : (data | 0x4));
+	}
+}

src/plugin.yml

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+name: Doors Open Doors
+main: net.mcbat.doorsopendoors.DoorsOpenDoors
+version: 1.0
+website: http://mc-bat.net
+author: Steven Mattera