/**
* Go through the blocks, checking for valid ones The way this works is:
*
* <ul>
* <li>Adds the current location to the list of valid locations
* <li>Checks if the current block is within {@link LiftPlatesConfig#maxLiftSize}
* <li>Makes sure the current block is of the same type and data as the central block
* <li>If large lifts are not enabled in the configuration, also checks that the block above is
* a pressureplate (If any of the previous conditions are not met, the method does not
* continue)
* <li>Adds the current location to the list of valid locations
* <li>Runs the method on {@link LiftUtil#NSEW_FACES}, excluding locations that have already
* been visited, with the same sets of valid and visited locations
* </ul>
*
* @param start The origin block
* @param current The current block
* @param validLocations The list of already travelled and valid locations
* @param visited The list of already travelled (not necessarily valid) locations
*/
private void travelBlocks(
Vector3i start,
Vector3i current,
Set<Vector3i> validLocations,
Set<Vector3i> visited,
Set<Vector3i> edgeBlocks) {
visited.add(current);
LiftPlatesConfig config = manager.getPlugin().getConfiguration();
final int maxDist = config.maxLiftSize * config.maxLiftSize;
if (start.distanceSquared(current) > maxDist) { // Too far away
edgeBlocks.add(current);
return;
}
final World world = manager.getWorld();
if (!world.getBlock(start).equals(world.getBlock(current))) { // Different block type
edgeBlocks.add(current);
return;
}
if (!config.recursiveLifts
&& !LiftUtil.isPressurePlate(
world.getBlockType(current.add(0, 1, 0)))) { // Not a pressure plate
edgeBlocks.add(current);
return;
}
validLocations.add(current);
for (int i = 1; i < config.liftHeight; ++i) {
validLocations.add(current.add(0, i, 0));
}
for (Direction face : LiftUtil.NSEW_FACES) {
Vector3i newLoc = current.add(face.toVector3d().toInt());
if (visited.contains(newLoc)) {
continue;
}
travelBlocks(start, newLoc, validLocations, visited, edgeBlocks);
}
}
/**
* @param sign treated as sign post if it is such, or else assumed to be a wall sign (i.e., if you
* ask about a stone block, it's considered a wall sign).
* @return the blank side of the sign opposite the text. In the case of a wall sign, the block in
* this direction is the block to which the sign is attached. This is also the direction a
* player would be facing when reading the sign; see {@link #getFront(Location)}.
*/
public static Direction getBack(Location sign) {
Direction front = getFront(sign);
if (front == null) return Direction.NONE;
return front.getOpposite();
}
@Override
public boolean triggerMechanic(Location block, Sign sign, Human human, Boolean forceState) {
if (!SignUtil.getTextRaw(sign, 1).equals("[Door]")) {
Direction back =
SignUtil.getTextRaw(sign, 1).equals("[Door Up]") ? Direction.UP : Direction.DOWN;
Location baseBlock = block.getRelative(back);
Location otherSide = getOtherEnd(block, back, maximumLength);
if (otherSide == null) {
if (human instanceof CommandSource)
((CommandSource) human).sendMessage(Texts.builder("Missing other end!").build());
return true;
}
Location otherBase = otherSide.getRelative(back.getOpposite());
if (!baseBlock.getBlock().equals(otherBase.getBlock())) {
if (human instanceof CommandSource)
((CommandSource) human)
.sendMessage(Texts.builder("Both ends must be the same material!").build());
return true;
}
int leftBlocks = 0, rightBlocks = 0; // Default to 0. Single width bridge is the default.
Location left = baseBlock.getRelative(SignUtil.getLeft(block));
Location right = baseBlock.getRelative(SignUtil.getRight(block));
// Calculate left distance
Location otherLeft = otherBase.getRelative(SignUtil.getLeft(block));
while (true) {
if (leftBlocks >= maximumWidth) break;
if (left.getBlock().equals(baseBlock.getBlock())
&& otherLeft.getBlock().equals(baseBlock.getBlock())) {
leftBlocks++;
left = left.getRelative(SignUtil.getLeft(block));
otherLeft = otherLeft.getRelative(SignUtil.getLeft(block));
} else {
break;
}
}
// Calculate right distance
Location otherRight = otherBase.getRelative(SignUtil.getRight(block));
while (true) {
if (rightBlocks >= maximumWidth) break;
if (right.getBlock().equals(baseBlock.getBlock())
&& otherRight.getBlock().equals(baseBlock.getBlock())) {
rightBlocks++;
right = right.getRelative(SignUtil.getRight(block));
otherRight = otherRight.getRelative(SignUtil.getRight(block));
} else {
break;
}
}
baseBlock = baseBlock.getRelative(back);
BlockState type = block.getRelative(back).getBlock();
if (baseBlock.getBlock().equals(type) && (forceState == null || !forceState))
type = BlockTypes.AIR.getDefaultState();
while (baseBlock.getBlockY() != otherSide.getBlockY() + (back == Direction.UP ? -1 : 1)) {
baseBlock.setBlock(type);
left = baseBlock.getRelative(SignUtil.getLeft(block));
for (int i = 0; i < leftBlocks; i++) {
left.setBlock(type);
left = left.getRelative(SignUtil.getLeft(block));
}
right = baseBlock.getRelative(SignUtil.getRight(block));
for (int i = 0; i < rightBlocks; i++) {
right.setBlock(type);
right = right.getRelative(SignUtil.getRight(block));
}
baseBlock = baseBlock.getRelative(back);
}
} else {
if (human instanceof CommandSource)
((CommandSource) human)
.sendMessage(Texts.builder("Door not activatable from here!").build());
return false;
}
return true;
}