Ventana software support forum

Hi,

I am building a game using Venapp but I have some problem hope u can help:

1- LISTVAR,"FINAL TIME",88,24,7,4,L|System|10|B|255-0-0,[0|60]10|20|30|40|50|60,,

I still got error that the listvar is empty so what is the problem?


2-MODVAR,"Number of new students",17,12,6,5,L,[0|5000|2000],"

still give me error

but the Idea for both error that when I test screen it works perfectly but when I run Venapp it give me error??

so I need some help....

I've tried it and it works for me.

Do you have a model loaded before you try these commands?

Yes I have and as i said when I test screen its work so what do u think the problem?

Final time, by default, is a constant. I suspect that Number of students may also be a constant. Once you execute MENU>GAME you can only change Game variables. So you will need to split the setup part of the Venapp from the ongoing gaming changes. A standard approach is

game input = GAME(constant input)

change constant input before entering game mode, then change game input.

Is that what u mean ?



:SCREEN NAMERUN
SCREENFONT,Times New Roman|10||0-0-0|-1--1--1
COMMAND,"",0,0,0,0,,,SIMULATE>RUNNAME|?Name for new game output
COMMAND,"",0,0,0,0,,,GAME>GAMEINTERVAL|0.25
COMMAND,"",0,0,0,0,,,MENU>GAME|O
CLOSESCREEN,"",0,0,0,0,,,,GAMEINI
!
:SCREEN GAMEINI
SCREENFONT,Times New Roman|10||0-0-0|-1--1--1
TEXTONLY," G A M E C O N T R O L S",61,2,33,8,C|Times New Roman|16||125-50-75,,,
BUTTON,"Start",62,12,7,5,L,Ss,,MAINGAME
RECTANGLE,"",71,12,7,5,L|Times New Roman|10||75-125-55,,,
TEXTONLY," End ",72,13,5,0,C|System|10|B|75-125-55,,,
BUTTON," Exit ",85,12,9,6,L,Xx,,ASKEXIT1
TEXTONLY,"Set Final Time",79,25,8,0,L|Times New Roman|10|B|255-0-0,,,
LISTVAR,"FINAL TIME",88,24,7,4,L|System|10|B|255-0-0,[0|60]10|20|30|40|50|60,,
TEXTONLY,"Current Time",63,24,8,0,L|Times New Roman|10|B|0-0-0,,,
SHOWVAR,"TIME",72,24,4,0,L|System|10|B|255-0-0,,,

Once you execute MENU>GAME you can only change Gaming Variables, not Constants.

... but you can always change the type of your constants to GAME variables in the equation editor, as needed.

Thanks Tom , but from where can I change it , I checked in the equation editor but I could not find where?

You can just type in GAME.

Eg if you had a constant before called "INITIAL STAFF" = 0 change it to "INITIAL STAFF" = GAME(0).

... or in the equation editor, set the variable type to "auxiliary" and the subtype to "gaming".

Thanks I mange to change it, but the error is still here so what ales might be wrong ?

Do you want to email it to me direct (tony@vensim.com) and I'll take a look?

Many thanks Tony, I solve it, but I might send it to you to have a quick look and give me your opinion

on the other hand I still have a problem with the listvar it keeps give me that the listvar is empty so what is going on ?

do I need to change anything in my model to make it work ?