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LUA CPP "how to" 4/7


Charrua

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3) How to call an entity's script LUA function easely (without parameters)

 

That's really easy. Suppose you have an entity in your scene with a script attached in which a function "noParams" has been declared

 

function Script:noParams()
  System:Print("executing noParams")
end
 

 

using the loop exposed on tut 2/7 of this series, you can find that entity and then, to call one of their functions you only have to do:

 

entity->CallFunction("noParams"); // yes only the name
 

 

also you may check if the entity has a script at all:

 

this is a more generic function to call functions with no parameters:

void call_noParams(Entity* e, string funcName){
  if (e->script != NULL)
    e->CallFunction(funcName); // CallFunction only if entity has a script attached
}

 

 

that's it!

 

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