Accessing Level Filename (not Level Title) on World Map

[Sambo]

I need to be able to access the level's filename, but there's not a world.levelFilename value, and I can't locate the memory address for it.

I need to do something like this:

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function onLoop()
   level_code == string.match(world.levelFileName, "%D+%d+")
end

[Kevsoft]

Well there is the "Level"-Class (only for the overworld), which hasn't been documented yet but is already free to use:
https://github.com/Wohlhabend-Networks/LunaDLL/blob/master/LunaDll/LuaMain/LunaLuaMain.cpp#L667
So you could do:

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function onLoop()
  local firstLevel = Level.getByFilename("myFirstLevel.lvl")
  -- ...
  local currentFilename = ""
  local theLevelToCompare = Level.getByFilename(theFileNameVariable)
  if(theLevelToCompare)then
    if(theLevelToCompare == firstLevel)then -- This luna-object comparing has been implemented in the latest luna version.
      currentFilename = "myFirstLevel.lvl"
    end
  end
end


I know this is currently more a hack than a good way. I will implement more for the level object, if I find more time in the next couple weeks. (School has started again :/)

[Sambo]

So, using this method I will have to do this:

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if(theLevelToCompare == firstLevel)then
  --do stuff
end

for each level?

This doesn't really save time for me. The idea is to use as little code as possible, so I can just grab the information from the level filename. Also, this seems complicated when I could just go through the level name:

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if(world.levelTitle) then
  if world.levelTitle == "Mushroom Road" then
    level_code = mi2
  elseif world.levelTitle == "South Castle Road" then
    --(repeat for every level)
  end
end

What I'm trying to do is run this, when the level name format is something like "mi2-Mushroom Road.lvl":

Code: Select all

function onLoop()
   level_code == string.match(world.levelFileName, "%D+%d+")
end

This would set level_code to mi2. Then I would get the data I needed using the level_code variable:

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if saveData:get(level_code .. "-dc-1") == 1 then
  --(load an indicator image showing that the Dragon Coin is collected)
end

But there's no rush for me to get this done. I'll just wait until you've implemented something like that.

[Kevsoft]

So with the new version you should now have access to the level filename.

But I did change some fields in the Level class:
"Level.levelTitle" --> "Level.title" and it is now of type string instead of a VBStr object.

[Sambo]

Does that mean that this will work now:

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function onLoop()
   level_code = string.match(world.levelFileName, "%D+%d+")
end

Or do I need to do something else?

[Kevsoft]

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local levelTitle = world.levelTitle
if(levelTitle)then
  local levelObj = Level.getByName(levelTitle)
  if(levelObj)then
    local filename = levelObj.filename
  end
end


(would recommend to write an own function for this.

[Sambo]

The code won't work. I probably just screwed it up when I made some changes:

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function getLevelCode()
   levelTitle = world.levelTitle
   if(levelTitle)then
      local levelObj = Level.getByName(levelTitle)
      if(levelObj)then
         local filename = levelObj.filename
      end
      level_code = string.match(filename, "%D+%d+")
   end
end

It returns this error:

I removed the "local" from "levelTitle" because it is used to check if the function needs to be run in onLoop. This keeps it from running on every loop.

[Kevsoft]

Nope, it was my fault:

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levelTitle = world.levelTitle


to

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levelTitle = world.levelTitle.str