Solved Floor Selection Problem

Hello everyone,

I'm working on a mini game plugin called Red Alert just like Volcano in Hpixel Party Games 1, basically the floor turns from white to yellow and then yellow to orange, etc...
I tried creating a timer (scheduleSyncRepeatingTask) that will select a random block from a Map<Location, Material> but it doesn't seem to work.
Here is my code:

PHP:

    private int randomBlockTimer;
    private void randomBlockSelect() {
        this.randomBlockTimer = Bukkit.getScheduler().scheduleSyncRepeatingTask(RedAlert.instance, new Runnable() {
            public void run() {
                if (!locations.isEmpty()) {
                    Random random = new Random();
                    List<Location> keys = new ArrayList<Location>(locations.keySet());
                    Location loc = keys.get(random.nextInt(keys.size()));
                    blockChange(loc);
                }
            }
        }, 1, 0L);
    }

locations is Map<Location, Material>.

EDIT: Before I run that code, I first store every block in the selected floor region to that map list. Here is my code:

PHP:

    public void loadFloor(World world) {
        int minX = getMinimumLocation().getBlockX();
        int minY = getMinimumLocation().getBlockY();
        int minZ = getMinimumLocation().getBlockZ();
      
        int maxX = getMaximumLocation().getBlockX();
        int maxY = getMaximumLocation().getBlockY();
        int maxZ = getMaximumLocation().getBlockZ();
      
        for (int x = minX; x <= maxX; x++) {
            for (int y = minY; y <= maxY; y++) {
                for (int z = minZ; z <= maxZ; z++) {
                    Location loc = new Location(world, x, y, z);
                    this.locations.put(loc.getBlock().getLocation(), loc.getBlock().getType());
                }
            }
        }
    }

 

Have you attempted to debug the code? What part of it isn't working? Does it actually get the Location?Do you check if keys is empty? Is it the blockChange method causing the problem. Try adding some output statements every line and see how your code is flowing. See if its ever actually getting to blockChange(loc) and what the value of Loc is at that point.

 

I debug my code, found out the problem thanks man for the help.