public boolean onSignChange(Player player, Sign sign) { int max_length = 10; String[] line0split = sign.getText(0).split(" "); if (line0split.length >= 1 && line0split.length <= 3 && line0split[0].equalsIgnoreCase("[SENSOR]")) { // interpret sign try { // read params int length = max_length; if (line0split.length >= 2) { int l = new Integer(line0split[1]); if (l < max_length && l > 0) { length = l; } } int duration = 0; if (line0split.length >= 3) { int d = new Integer(line0split[2]); if (d >= -2) duration = d; } SensorBlock.SignOrientation o = SensorBlock.SignOrientation.SOUTH; int data = sign.getBlock().getData(); if (data == 0x2) o = SensorBlock.SignOrientation.EAST; else if (data == 0x3) o = SensorBlock.SignOrientation.WEST; else if (data == 0x4) o = SensorBlock.SignOrientation.NORTH; else if (data == 0x5) o = SensorBlock.SignOrientation.SOUTH; else { Logger.getLogger("Minecraft").severe("Invalid sign data: " + data); throw new RuntimeException("Invalid sign data."); } String extra = sign.getText(1) + sign.getText(2) + sign.getText(3); SensorBlock s = new SensorBlock( new Location(sign.getX(), sign.getY(), sign.getZ()), o, length, duration, extra); mSensorList.add(s); player.sendMessage(mMessagePrefix + "You created a sensor."); if (etc.getServer().getBlockAt(sign.getX(), sign.getY() - 1, sign.getZ()).blockType != Block.Type.Lever) { player.sendMessage( mMessagePrefix + "Now place a §fLever " + mMessageColor + "underneath the sign post."); } sign.setText(0, "[SENSOR] " + length + " " + duration); if (s.IsTriggeringAny()) sign.setText(1, "*"); sign.update(); Save(); } catch (NumberFormatException e) { player.sendMessage( mMessagePrefix + "Invalid sign format. See §f/towndefense help sensor " + mMessageColor + " for help."); } } return false; }