[Solved] I don't understand this error.

[TheCryptek]

I was following a tutorial on how to mod, starting something basic. Following the tutorial I decided to extend the code and make a custom item spawner for my solo play through, I finished the code up to what I thought was finished but I get an error I don't understand.

 

 

Error:

 

1481760717435 79

java.lang.RuntimeException:

    at se.krka.kahlua.integration.expose.MethodArguments.assertValid(MethodArguments.java:123)     at se.krka.kahlua.integration.expose.LuaJavaInvoker.call(LuaJavaInvoker.java:187)

    at se.krka.kahlua.vm.KahluaThread.callJava(KahluaThread.java:182)

    at se.krka.kahlua.vm.KahluaThread.luaMainloop(KahluaThread.java:983)

    at se.krka.kahlua.vm.KahluaThread.call(KahluaThread.java:163)

    at se.krka.kahlua.vm.KahluaThread.pcall(KahluaThread.java:1727)

    at se.krka.kahlua.vm.KahluaThread.pcallvoid(KahluaThread.java:1672)

    at se.krka.kahlua.integration.LuaCaller.pcallvoid(LuaCaller.java:53)

    at se.krka.kahlua.integration.LuaCaller.protectedCallVoid(LuaCaller.java:81)

    at zombie.Lua.Event.trigger(Event.java:37)

    at zombie.Lua.LuaEventManager.triggerEvent(LuaEventManager.java:83)

    at zombie.input.GameKeyboard.update(GameKeyboard.java:48)

    at zombie.GameWindow.logic(GameWindow.java:575)

    at zombie.GameWindow.run(GameWindow.java:1246)

    at zombie.GameWindow.maina(GameWindow.java:1022)

    at zombie.gameStates.MainScreenState.main(MainScreenState.java:179)

 

Code:

 

--[ We will store all global variables in this table
TCSpawner = {};

--[ We added the parameter to the function which
--[ will be passed to the function as soon as the
--[ event fires.

function TCSpawner.addItems(_keyPressed)
	print(_keyPressed); --[ print the pressed key to the console.
		
	--[ We Test if the correct key is pressed.
	if _keyPressed == 79 then
		local player = getSpecificPlayer(0); --[ Java: get player one
		local inv = player:getInventory(); --[ Java: access player's inventory
	
		--[ Java: add the actual items to the inventory
		inv:addItem("Base.HammerStone");
		inv:addItem("Base.AxeStone");
		inv:addItem("Base.Sledgehammer");
		inv:addItem("Base.Saw");
		inv:addItem("Base.NailsBox");
	end
	if _keyPressed == 80 then
		local player = getSpecificPlayer(0);
		local inv = player:getInventory();
		
		inv:addItem("Base.Needle");
		inv:addItem("Base.Thread");
	end
	if _keyPressed == 81 then
		local player = getSpecificPlayer(0);
		local inv = player:getInventory();
		
		inv:addItem("Base.Duffelbag");
	end
	if _keyPressed == 75 then
		local player = getSpecificPlayer(0);
		local inv = player:getInventory();
		
		inv:addItem("Base.Padlock");
		inv:addItem("Base.ElectronicsMag4");
	end
end

--[ Hooks
--[ This will be fired whenever a key is pressed.
Events.OnKeyPressed.Add(TCSpawner.addItems);	

 

Any help at all would be apreciated.

Edited December 15, 2016 by TheCryptek
Mark as solved

[EnigmaGrey]

That'd be akin to something like "invalid arguments."

 

There's two very similar functions: addItem, which takes an Inventoryitem, and AddItem which takes a string containing the module and item name (e..g "Base.Apple"). You want the second one.

 

So, inv:AddItem("Base.Apple")

[TheCryptek]

2 minutes ago, EnigmaGrey said:

That'd be akin to something like "invalid arguments."

 

There's two very similar functions: addItem, which takes an Inventoryitem, and AddItem which takes a string containing the module and item name (e..g "Base.Apple"). You want the second one.

 

So, inv:AddItem("Base.Apple")

So you are saying change addItem to AddItem? Just want to make sure I am understanding this correctly as I learn

[EnigmaGrey]

That's it, yep.

You can see it here in the JavaDoc: http://projectzomboid.com/modding/zombie/inventory/ItemContainer.html

 

 

I'd recommend grabbing something like Notepad++ and using its "find in files" function to find examples of what you're trying to do in the future, as well.

[TheCryptek]

9 minutes ago, EnigmaGrey said:

That's it, yep.

You can see it here in the JavaDoc: http://projectzomboid.com/modding/zombie/inventory/ItemContainer.html

 

 

I'd recommend grabbing something like Notepad++ and using its "find in files" function to find examples of what you're trying to do in the future, as well.

I already use Notepad++, it helps me a lot with python, especially with the 'find in files' function  Thank you for the help!