Need help with lua? - LunaLua General Help

[DigitalDetective47]

Actually, I've decided to cancel this project for now, as the bug is planned to eventually be fixed, and I have a specialized solution for what I'm doing right now. Thanks for the help though!
(BTW I couldn't get it to work)

[Hoeloe]

(BTW I couldn't get it to work)

Because you gave up immediately, despite me telling you what the problem was in this case: Your function needed to be "function libraryName.functionName", not just "function functionName".

[DigitalDetective47]

(BTW I couldn't get it to work)

Because you gave up immediately, despite me telling you what the problem was in this case: Your function needed to be "function libraryName.functionName", not just "function functionName".

Actually, turns out I was being a big dummy and for some reason thought that you were referring to the table on line 1. I have no idea what I was thinking. But, as I would soon learn, there were a few other issues. Those have been dealt though. One thing that I'm unclear on is how to add customization options to libraries.

Added in 40 minutes 37 seconds:
Just figured it out by analyzing others' code. No need to respond.

[chasey1237]

>:(

Code: Select all

function onTick()
	for k,v in ipairs(NPC.get(210)) do
		v.hp = v:mem(0x148, FIELD_FLOAT)
		Text.print(v.hp, 100, 100)
		if v.hp == 6 then
			triggerEvent(Halfway)
		end
	end
end

Not sure what I'm missing here. Probably something dumb.

Not sure what you're trying to do. Rinkas don't have HP and triggering an event that isn't even a string every frame sounds like a silly thing to do.

is it possible to lock a character to have a powerup in a level so they start with it and not lose it? if so, tell me how!

Just use the Beta 4 powerup filter blocks in the Misc. tab by sprinkling them throughout your level where players can get hit.

Hello! I want to create a stage effect in one of the sections of my stage where the lighting of the level goes down and then goes up again in a repeating manner. Perhaps this could be for both the backgrounds, blocks, and NPCs (If Possible), to make it a bit of a challenge. The Speed of the Light fading away and fading back should be quick, but not too quick. How could I possibly do this? (Also, this is just for one entire section of the level. Not the whole thing or a part of a section.)

Are you looking for something like the editor darkness setting (with light sources) or a semitransparent black overlay over everything?

Added in 3 minutes 14 seconds:
is there a way to lock a powerup with actuly using lunalua and not making the level to easy by spaming powerup filters! (ur useless enjl! ur method is useless and makes the level to easy! so dont reply if ur enjl unless u have a method that actuly uses lunalua)

[Emral]

Added in 3 minutes 14 seconds:
is there a way to lock a powerup with actuly using lunalua and not making the level to easy by spaming powerup filters! (ur useless enjl! ur method is useless and makes the level to easy! so dont reply if ur enjl unless u have a method that actuly uses lunalua)

Aside from the fact that your concept of difficulty in levels is woefully wrong and saddening...

Of course there is. Program your own HP system.
You can find the relevant player offsets here:
https://wohlsoft.ru/pgewiki/SMBX_Player_Offsets
Have fun!

[ElectriKong]

(ur useless enjl! ur method is useless and makes the level to easy! so dont reply if ur enjl unless u have a method that actuly uses lunalua)

Please be more respectful to others.

[chasey1237]

(ur useless enjl! ur method is useless and makes the level to easy! so dont reply if ur enjl unless u have a method that actuly uses lunalua)

Please be more respectful to others.

jeez i only asked for lunalua help!

[MarioLover64]

How do I send data (like health) to a transformed npc?

[Emral]

How do I send data (like health) to a transformed npc?

Please elaborate. Not sure what your situation is exactly.

[MarioLover64]

nvmd figured it out

Added in 6 minutes 41 seconds:
how much damage does the harmtypes do to larry?

[cato]

How would you use Section:drawScreenEffect(id, camera)?

I get you are supposed to substitute screen effect constant into the "id", but what do I substitute into "camera", and at a certain time disable the screen effect?

[Emral]

How would you use Section:drawScreenEffect(id, camera)?

I get you are supposed to substitute screen effect constant into the "id", but what do I substitute into "camera", and at a certain time disable the screen effect?

Camera would be a camera object (for example, the variable 'camera'. The camera of player 1.
To disable it, just stop drawing it. It works like Graphics.drawImage which you also invoke every frame.

[TheTrueMarioMaster]

Anyone know how to disable shell grabbing since I hear it hardcoded so just disabling grabbing in general won't work.

[Emral]

Anyone know how to disable shell grabbing since I hear it hardcoded so just disabling grabbing in general won't work.

https://wohlsoft.ru/pgewiki/SMBX_Fields

Defines.player_grabShellEnabled = false

[Graham]

So, uh... I'm going to ask something a little bit wacky. Is there any known way to keep an NPC in an active, functioning state if the player is not present in the same section?

[Emral]

So, uh... I'm going to ask something a little bit wacky. Is there any known way to keep an NPC in an active, functioning state if the player is not present in the same section?

It's tricky, given that the game unloads a section once you leave it. What are you trying to do, exactly?

[Lithobraker]

So I'm trying to do a check if the player is mounted or not in an OnEvent function. If the player has a mount, trigger "Event A", and if they are not, trigger "Event B". But all the information I could find on how to detect mounts seems to be outdated (I think I've gotten event triggering via lunalua right). Char.itemSlot seems not to apply anymore, so I've been trying to detect all the NPCs in the section so I can play it if there's any mount NPC present, but I'm not quite sure how to do that either.

I've already tried to look this up- examples of npc.get in use, mount detection, etc- but I can't search "npc.get" since "npc" and "get" are too common, and trying to find anything related to mounts just brought me back to Char.itemSlot.
I thought maybe the player class would have something relating to mounts, but it seems it doesn't, unless the wiki is incomplete.

Edit: Nevermind, I found it. "player.mount" is a variable, it's just not documented... <.>
For those like me who want to make a 'dismount Yoshi' cutscene, here's what I put in my luna.lua:

Spoiler: show

Code: Select all

function onStart()
    if player.section == 0 then
		triggerEvent("Castle Cutscene 1")
	end
end

function onEvent(eventname, x)
	if (eventname == "Castle Cutscene Yoshicheck") then 
				if player.mount ~= 0 then
					triggerEvent("Castle Cutscene 4 Yoshi")
				else
					triggerEvent("Castle Cutscene 4 Noyoshi")
		end
	end
end

Added in 4 hours 46 minutes 31 seconds:
Now I have a new problem: Triggering an event on load does not appear to work correctly for input locking- if a button is held during loading, the player can move before the event triggers and locks input.
This is different from autostart event, which will successfully lock input.
The reason why I only want it to trigger on section 0 is because that's the entry cutscene- but it shouldn't happen when respawning at a checkpoint, for example.

onStart is supposed to run on the very first frame the level is loaded, but you get several frames of input here before it seems to kick in. Why is this?

Edit: Figured it out again. I'm not sure why this is happening, but you need to manually lock input until an event involving movement first occurs.
FOR SOME REASON, setting lockInput to true with onStart here does work to prevent input, but the event itself is delayed when triggered the same way.

So I manually restrict inputs until Castle Cutscene 2 begins, which is when it starts holding right.
This is still very odd, though. Why does Castle Cutscene 1 laze around for a few frames before starting? Freeloader.

Spoiler: show

Code: Select all

local lockInput = false

function onStart()
    if player.section == 0 then
		triggerEvent("Castle Cutscene 1")
		lockInput = true
	end
end

function onInputUpdate()
	if lockInput == true then
		player.upKeyPressing = false;
		player.leftKeyPressing = false;
		player.rightKeyPressing = false;
		player.downKeyPressing = false;
		player.jumpKeyPressing = false;
		player.altJumpKeyPressing = false;
		player.runKeyPressing = false;
		player.altRunKeyPressing = false;
		player.dropItemKeyPressing = false;
		player.pauseKeyPressing = false;
	end
end

function onEvent(eventname, x)
	if (eventname == "Castle Cutscene 2") then 
		lockInput = false
	end
	if (eventname == "Castle Cutscene Yoshicheck") then 
				if player.mount ~= 0 then
					triggerEvent("Castle Cutscene 3 Yoshi")
				else
					triggerEvent("Castle Cutscene 3 Noyoshi")
		end
	end
	if (eventname == "bossroomenter Check") then 
				if player.character == 1 then
					triggerEvent("bossmsg Mario")
				else
					triggerEvent("bossmsg Luigi")
		end
	end
end

[Emral]

Char.itemSlot

Was this ever a thing? That sounds like 38A code. 38A code is unrelated to SMBX2.

npc.get

NPC.get. Capitalisation! Clever idea that wouldn't have worked though because yoshi ridden by the player is not actually an npc.

player.mount" is a variable, it's just not documented

We're working on it.
https://docs.codehaus.moe/#/reference/player

Triggering an event on load does not appear to work correctly for input locking-

The event trigger may not be registered until the next frame. You could work around it by foregoing events entirely:

Code: Select all

local inputLocked = false
function onStart()
	if player.section == 0 then
		inputLocked = true
		-- Trigger your event here or start a routine that handles the cutscene in lua.
	end
end

function onTick()
	if inputLocked then
		for k,v in pairs(player.keys) do
			player.keys[k] = false
		end
	end
end

Oh i read onwards and you figured that out too. Take a peek at my code though for a potentially more compact solution.

[Lithobraker]

-snip-

Char.ItemSlot was part of Teascript, which does appear to be a 38A thing.
And yeah, I knew NPC.get was supposed to be capitalized- I just didn't write it that way here.
I'll give your method a shot. Thanks!

[Goldenemerl64]

Having problems Understanding what to do,

I Didn't change anything in that code, And it's Kinda strange when I play a level not saved, It Works Fine, But when it's saved, It Shows This Message,
I tried To figure out what's wrong but i can't figure it up, I need help please