nerthul11

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I'm looking for a way to set a variable's value to the event's map ID through a script so I can call a function passing the event's ID as a parameter. I was thinking of something like $game_map.events[self].id, but when calling "self" from an event, I'm not getting what I'm looking for. I've found a few references of this problem for other engines (MV or Ace) but not for XP.
 

Dev_With_Coffee

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Try:
Ruby:
@event_id

Example using variable 19:
Ruby:
$game_variables[19]=@event_id

I hope that's it, good luck.
 

Shaz

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uh ... Control Variables > Other > Map ID

Do you want the map id or the event id? You said one, then you said the other.
 

Roninator2

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$game_map.events[self].id
Try:
Ruby:
@event_id
Tested and correct. same as with VX Ace.
Ruby:
$game_map.events[@event_id].id
BUT,
XP doesn't have a script function for the variables so you just need to do a full script command in the window to the variable you are using
Ruby:
$game_variables[5] =
$game_map.events[@event_id].id
 

Dev_With_Coffee

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@Roninator2
The command to call script from Rpgxp has line auto wrapping. That is why writing such a long command does not work.
As I understand it, this is totally redundant:
Ruby:
@event_id //return whole number
$game_map.events[@event_id].id //return whole number

I'm sorry if I got it wrong.
 
Last edited:

Dev_With_Coffee

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Really, I didn't know that the line break would be ignored if I did it that way.
 

Roninator2

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the line break would be ignored
It's one of the tings I learned with ruby. I think it was part of my class, but it was probable somebody on here. Code can be broken after operations. == && ||
 

Shaz

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A like break will work if you make it clear that there is more to come. You can end a line with any of these:
( [ { = + - / * %
and probably a few others, and it will look for the remainder of the command on the next line (and on the one after, if you end that line the same way)

So this will work:
Code:
$game_variables[5] =
$game_map.events[@event_id].id

but this will not:
Code:
$game_variables[5]
= $game_map.events[@event_id].id

Now, on the question at hand, why not just do this?
Code:
$game_variables[5] = @event_id

It kind of seems redundant to use the @event_id variable to look up the event from the map just to get its event id ... you already have the event id - that's what you're using to look up the event to get the id from ;)
 

Zeriab

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If you want to understand how line brakes are handled in a deeper sense I recommend inspecting the Ruby grammar.
Here are a couple of links to a BNF specification:

Look at then TERM is used and not used.
You can use this knowledge to parse when the newline will have an affect on what you are trying to do.
If learning how to interpret a BNF seems too daunting you can just try splitting the line at different places and see how they work.
 

nerthul11

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uh ... Control Variables > Other > Map ID

Do you want the map id or the event id? You said one, then you said the other.
I was asking for event id

All your answers proved useful, thanks a lot!
 

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