Class GameEventHandler

src/main/java/baritone/event/GameEventHandler.java:42–189

@author Brady @since 7/31/2018

 * @since 7/31/2018
 */
public final class GameEventHandler implements IEventBus, Helper {

    private final Baritone baritone;

    private final List<IGameEventListener> listeners = new CopyOnWriteArrayList<>();

    public GameEventHandler(Baritone baritone) {
        this.baritone = baritone;
    }

    @Override
    public final void onTick(TickEvent event) {
        if (event.getType() == TickEvent.Type.IN) {
            try {
                baritone.bsi = new BlockStateInterface(baritone.getPlayerContext(), true);
            } catch (Exception ex) {
                ex.printStackTrace();
                baritone.bsi = null;
            }
        } else {
            baritone.bsi = null;
        }
        listeners.forEach(l -> l.onTick(event));
    }

    @Override
    public void onPostTick(TickEvent event) {
        listeners.forEach(l -> l.onPostTick(event));
    }

    @Override
    public final void onPlayerUpdate(PlayerUpdateEvent event) {
        listeners.forEach(l -> l.onPlayerUpdate(event));
    }

    @Override
    public final void onSendChatMessage(ChatEvent event) {
        listeners.forEach(l -> l.onSendChatMessage(event));
    }

    @Override
    public void onPreTabComplete(TabCompleteEvent event) {
        listeners.forEach(l -> l.onPreTabComplete(event));
    }

    @Override
    public void onChunkEvent(ChunkEvent event) {
        EventState state = event.getState();
        ChunkEvent.Type type = event.getType();

        Level world = baritone.getPlayerContext().world();

        // Whenever the server sends us to another dimension, chunks are unloaded
        // technically after the new world has been loaded, so we perform a check
        // to make sure the chunk being unloaded is already loaded.
        boolean isPreUnload = state == EventState.PRE
                && type == ChunkEvent.Type.UNLOAD
                && world.getChunkSource().getChunk(event.getX(), event.getZ(), null, false) != null;