Solved Randomizing

Discussion in 'Plugin Development' started by Coopah, Apr 17, 2014.

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    Ok, how would I go about this. I want to have a list of a bunch of items e.g gold, diamond, iron etc. Then I want to pick a random one of those.
    So I would have a list of items then when I typed a certain command it would pick a random one out of them then I could give it to a player.
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    2. Random rand = new Random();
    3. int index = rand.nextInt(list.size());
    4. ItemStack itemStack = list.get(index);
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    Okay, first you need to make your command. After this, you need to create a ItemStack[] ( In the example below I have called mine itemStacks) and set it to the ItemStacks you want the player to receive (This could be a diamond with a custom name or multiple diamonds!). Then, use Java's Util.Random() to randomly select one of the ItemStacks from itemStacks by using itemStacks.lengh; Then, use player.getInventory().addItem(itemStacks[r]).

    1. public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args){
    2. if (!(sender instanceof Player)) {
    3. sender.sendMessage("You are not permitted to use this command in console!");
    4. return true;
    5. }
    7. Player player = (Player)sender;
    8. ItemStack[] itemStacks = new ItemStack[]{new ItemStack(Material.DIAMOND,5),new ItemStack(Material.GOLD_INGOT,7)};
    9. if(cmd.getName().equalsIgnoreCase("random")){
    10. int r = new Random().nextInt(itemStacks.length);
    11. player.getInventory().addItem(itemStacks[r]);
    12. player.sendMessage(ChatColor.GREEN + "Random item added, you recived some " + ChatColor.BLUE + itemStacks[r].getType().toString().toLowerCase().replaceAll("_", " "));
    13. return true;
    14. }
    15. return false;
    16. }
    Coopah likes this.
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    Thanks man! Now how would I get the amount and put it in the message like "blablabla player has won 32 gold ingots"?
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    Coopah No problem, Glad I could help!

    If you want it to be a random amount, just use:
    1. int random = new Random().nextInt(64) // We use 64 as its the max stack size, in most cases.

    Then apply that where its needed when crafting a ItemStack.

    If you want to get the amount that was added to the players Inventory, its simple!
    1. player.sendMessage(ChatColor.GREEN + "Random item added, you recived " + itemStacks[r].getAmount() + ChatColor.BLUE + itemStacks[r].getType().toString().toLowerCase().replaceAll("_", " "));
    2. // We use this: itemStacks[r].getAmount() to return the amount of item's in the random ItemStack, Simple!

    If you have any more problems, feel free to PM me.
    Coopah likes this.
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    Thanks man, really appreciate the help!
    CaLxCyMru likes this.
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    Coopah No problem. Shoot me a PM if you need any other problems sorted. I'll write you up a little explanation on why it works, and how to do it.

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