Checking for a block near a player

hi guys how would i check to see if a player is in a 3 x 3 x 3 block radius from obsidian? i have tryed 3 for loops for x y and z but it only ended up crashing the server xD.

Code:java

        for (int x1 = loc1x; x > loc2x; x++) {
            for (int y1 = loc1y; y > loc2y; y++) {
                for (int z1 = loc1z; z > loc2z; z++) {
                    Block block = world.getBlockAt(x, y, z);
                    if (block.getType() == Material.OBSIDIAN){
                      return true;
                    }
                }
            }
        }

am i going in the right direction?

thanks

 

I see, when are you checking this event?

 

when a command is executed it checks this..

 

teozfrank Your variables are x1, y1, and z1, but you are incrementing x, y, z.

 

yeah i noticed that.. tried to fix it but nothing it keeps crashing the server, is there a better way to go about this?

 

Does it just crash it and you don't get a stack trace? If there is one post it. Most probably you're running out of RAM because you're saving a block each time. Try just doing

Code:java

if(world.getBlockAt(x,y,z).getType().equals(Material.Obsidian){
  return true;
}

 

`getBlockAt(int, int, int)` gets the block using absolute points. You need to get the block relative to the player using `getRelative(int, int, int)`

Code:

int radius = 3;
for(int i = -radius; i <= radius; i++) {
    for(int j = -radius; j <= radius; j++) {
        for(int k = -radius; k <= radius; k++) {
            if(player.getBlock().getRelative(i, j, k).getType() == Material.OBSIDIAN)
                return true;
        }
    }
}