Grimrock

Posted: **Tue Nov 04, 2014 10:34 pm**

Here is a helper script which loads script entities dynamically on run time. It also implements autoexec-function similar to Xanathar's GrimQ-library from LoG1. With autoexec you will get rid of any load-order issues, because everything is loaded before autoexec is called.

copy paste to your dungeon and name it as loader. (or load it from external file)
loader

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-- spawn floor trigger at the party starting location
spawn('floor_trigger',party.level,party.x,party.y,1,party.elevation,'loader_init')
loader_init.floortrigger:addConnector('onActivate',self.go.id,'init')
loader_init.floortrigger:setDisableSelf(true)


function allEntsByComponent(componentName,callback)
    for i=1, Dungeon.getMaxLevels() do
		mapEntsByComponent(i,componentName,callback)
    end
end

function mapEntsByComponent(mapIndex,componentName,callback)
    for ent in Dungeon.getMap(mapIndex):allEntities() do
        if ent[componentName] then
            callback(ent)
        end
    end
end

-- find all script entities and execute autoexec-method if it exists
function init()
    local callback = function(ent)
        if ent.script.autoexec and type(ent.script.autoexec) == 'function' then
            ent.script:autoexec()
        end
    end
    self.allEntsByComponent('script',callback)
end

function loadScript(entityName,scriptPath)
      if findEntity(entityName) then
         Console.warn('Entity named '..entityName..' already exists')
         return false
      end
      local scr = spawn('script_entity',party.level,1,1,1,1,entityName)
      scr.script:loadFile(scriptPath)  
end

Usage example:
some_script_entity

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local ld = loader.script

--will load mod_assets/scripts/my_settings.lua as a my_lib script entity
ld.loadScript('my_setting','mod_assets/scripts/my_settings.lua')
ld.loadScript('my_lib','mod_assets/scripts/my_lib.lua')
ld.loadScript('other_lib','mod_assets/scripts/some_other_lib.lua')
-- you can load all your external scripts here

some_other_script_entity

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-- autoexec is called automatically once all entities are loaded 
-- so no more load order issues. 
-- You can add autoexec function to any script and it will get called.
function autoexec()
	my_lib.callMe()
end

-- so this wont work
-- my_lib.callMe()
-- because my_lib enti

Feel free to use it.

And as a bonus this script has 2 useful methods:

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-- finds all entities which do have component "componentName" and executes the callback function 
-- for each of them, callback receives the found entity as an argument 
loader.script.allEntsByComponent(componentName,callback)
-- same for specific map entities
loader.script.mapEntsByComponent(componentName,callback)

Edit: fixed a "local bug"

Posted: **Wed Nov 05, 2014 7:20 pm**

Using! This is a highly valuable scripting technique to stay organized and optimized, so use looking at this thread to see it.

Posted: **Thu Feb 26, 2015 4:32 pm**

If i understood well this loader load every script and execute it every time u load a save position? Is it usefull to avoid load/save issue with objects with minimalsavestate, right?

Posted: **Thu Feb 26, 2015 11:53 pm**

No, it's for load order issues. Example:

add a script entity to your dungeon
script_entity_1

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script_entity_2.script.test()

and then add script_entity_2

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function test()
   print('works')
end

now try to run your dungeon, you will get an error, with script loader you can fix this by enclosing that mehod call inside autoexec function:
script_entity_1

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function autoexec()
script_entity_2.script.test()
end

now it works.

And of course loader part of this script allows you to load all external scripts within one script entity. Useful if you have many external scripts.

Posted: **Fri Feb 27, 2015 1:34 pm**

understood
ty

Grimrock

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[Script] Script loader

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