Menu?

[darken]

Hi,
I'v been trying to utilize menus in AGD 4.3, and it works.
But I have question:
I have a menu at start of game which consists of 2 items, START GAME and CREDITS
How can I display different messages with different options chosen?
I'v looked into readme, but there's just a brief description of MENU.

[Jonathan Cauldwell]

The selected option will be returned in the OPT variable. If the player chooses START, OPT will be 0; if he chooses CREDITS OPT will be 1.

You'll need something similar to this:

MENU
IF OPT = 1
CLS
MESSAGE 99
WAITKEY
ENDIF

[darken]

Thanks, it works!
Now I have another problem, shame on me for not thinking about earlier.
I want to make a text adventure game. you have a description of place\situation and a menu with possible actions you can take. I it possible to make a labels and jump actions in event code?
For example, when player enters CREDITS, program will wait with WAITKEY, but what happens when player press any key? How can I go back to the beggining of the code?(So main menu with GAME START and CREDITS will appear).

Also...I don't quite understand HOW you save game as separate file.
When I choose Save Game option and input name, borders flash for some time and all is done i can't find file I named in directory.
I'm using Spectaculator as my emulator, if it helps in any way.

[Jonathan Cauldwell]

AGD isn't designed for backwards jumps, so this is a little complicated. You'll have to do it in a large REPEAT loop, with a variable, say P for play. The loop goes around 255 times but the menu is only displayed if PLAY was not selected (P=0).

LET P = 0
REPEAT 255
IF P = 0
CLS
MENU 98
IF OPT = 1
CLS
MESSAGE 99
WAITKEY
ELSE
LET P = 1
ENDIF
ENDIF
ENDREPEAT

Your save query will be down to an option in the emulator; alas, it's a while since I used Spectaculator and I'm unfamiliar with its menus. Perhaps someone else can help? While you're developing I'd suggest you save regular snapshots instead.

[darken]

Repeat seems to have a bad effect on game's font-it changes spacebar appearance .

Here's my normal screen:


And here's after adding repeat:


BIGMessage have nothing to do with it.
My code is as follows:

let lives 3
colour 71
border 0
let p 0
cls

repeat 255
if p 0
cls
let line 0
let column 0
colour 7
bigmessage 1
beep 100
menu 2
if opt 1
cls
let line 0
let column 0
message 3
waitkey
else
let p 1
endif
endif
endrepeat

[Jonathan Cauldwell]

It looks as though some of the event code is overwriting the font, another issue to investigate. I can't think why that might be happening.

[darken]

Oh well, I try to make different game, then.
Thanks for help, anyway

[kas29]

Guys, what a variable OPT?
Something in the instructions not found..

[Jonathan Cauldwell]

OPT is a variable. It holds the last option selected when you use the MENU command, although you could use it for something else if you wanted.

[kas29]

Thanks, now I know...