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Hello, I get this weird exception when using following code. I've spent a lot of time trying to figure out what's wrong and I have no clue. Am I doing something wrong or did I discover some sort of LuaLink - or more likely LuaJ / LuaKT - bug? local Material = import "org.bukkit.Material"
local ItemStack = import "org.bukkit.inventory.ItemStack"
script.onLoad(function()
-- Listening to PlayerJoinEvent in attempt to give player items when they join for the first time.
script.hook("org.bukkit.event.player.PlayerJoinEvent", function(event)
-- NOTE: Priting player name for debug purposes, as to make sure that event:getPlayer() works as expected.
print(event:getPlayer():getName())
-- NOTE: Condition is currently inverted as I don't feel like deleting player data each time I want to test the code.
if (event:getPlayer():hasPlayedBefore() == true) then
-- Getting player's inventory.
local inventory = event:getPlayer():getInventory()
-- Adding starting items to player's inventory.
-- NOTE: There's also Inventory#addItem(ItemStack...) but I couldn't get this to work.
-- Code below works as expected, assuming the condition above is not throwing.
inventory:setItem(inventory:firstEmpty(), ItemStack:of(Material.WOODEN_SWORD))
inventory:setItem(inventory:firstEmpty(), ItemStack:of(Material.WOODEN_AXE))
inventory:setItem(inventory:firstEmpty(), ItemStack:of(Material.WOODEN_PICKAXE))
inventory:setItem(inventory:firstEmpty(), ItemStack:of(Material.WOODEN_SHOVEL))
inventory:setItem(inventory:firstEmpty(), ItemStack:of(Material.BREAD))
end
end)
end) |
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Answered by
Saturn745
Jul 6, 2024
Replies: 2 comments 4 replies
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I've ran into this very same issue before (for the same event in fact) and if I remember correctly its due to there being a (private?) property in the Player class also named I'm unavailable to test myself but try to simply access it like a property like this: Also your comment about not being able to get |
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0 replies
Answer selected by
Saturn745
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Yep, it works. Thank you very much! :)
Yes I did, throws NPE: inventory:addItem({ItemStack:of(Material.WOODEN_SWORD), ItemStack:of(Material.WOODEN_AXE)}) |
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4 replies
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Interesting, I thought that's how you had to do it. I've noticed a lot of weird quirks and bugs with LuaJ such as this one and the original issue which I hope to be fixed when I move to LuaJava. |
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Another unrelated thing you may not be aware of: Ever since we made scripts load after the |
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I hope so! That sounds like an upgrade and I'm looking forward to see what it brings. My case is not that much of an issue because I can use
True, thanks for pointing that out. |
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Yeah definitely. The main advantage is gonna be the ability to use different Lua versions such as LuaJIT
Yeah so far I haven't ran into any cases like that but I am sure they exist. |
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I've ran into this very same issue before (for the same event in fact) and if I remember correctly its due to there being a (private?) property in the Player class also named
hasPlayedBeforeand for some reason it's coercing that and due to how Lua works you can't have two named the same thing.I'm unavailable to test myself but try to simply access it like a property like this:
event:getPlayer().hasPlayedBeforeAlso your comment about not being able to get
Inventory#addItem(ItemStack...)to work. Have you tried passing the items stacks as a table?