Score Flipping

[RetroFiends]

Hello everyone. I know this is easily testable, but for the sake of archival and not creating a new project to test, does batari Basic automatically flip the score back to zero upon going over 999999? If not, since you can't compare score values directly, how would you suggest to implement this?

[+Atarius Maximus]

It does flip the score back to zero, yes. This sample demonstrates it, hold the joystick button down to roll the score.

 score=999950
main
 scorecolor=$28
 if joy0fire then score=score+1
 drawscreen
 goto main

scoretest.txt.bin

[bogax]

I expect it just rolls over

 

Not sure what you want for a comparison

if it should have rolled but didn't how would you know?

if you want to find if it rolled over, presumably the

new score will be less than the old score

 

to compare

start with the most significant byte(s)

if it's greater than then return greater than

if it's less than then return less than

if it's equal do the next most significant byte(s)

if you run out of bytes it's equal

for i = 2 to 0 step -1
 if score1[i] > score2[i] then greater
 if score1[i] < score2[i] then less
next
equal

Edited February 4, 2014 by bogax

[+Gemintronic]

Are you pining for a 7th digit?

[RetroFiends]

 

It does flip the score back to zero, yes. This sample demonstrates it, hold the joystick button down to roll the score.

Thanks!

 

Are you pining for a 7th digit?

Not particularly, I just want to make sure when I release my game, that there's not any score bugs. Although I somehow doubt people will get to roll over the score, should they somehow be good enough to do so I don't want to slap them in the face for doing so

[+Gemintronic]

My advice is to stick with just adding to the score. Trying to do any logic based on the score or other math will only lead to disappointment and sadness.

 

UPDATE: I just remembered bogax made debugging by using the score a MUCH more useful thing:

http://www.randomterrain.com/atari-2600-memories-batari-basic-commands.html#testvariables

 

If you just try score = foo then it'll usually display gobbldeegook.

[iesposta]

 

UPDATE: I just remembered bogax made debugging by using the score a MUCH more useful thing:

http://www.randomterrain.com/atari-2600-memories-batari-basic-commands.html#testvariables

 

If you just try score = foo then it'll usually display gobbldeegook.

I love that routine.

Except if you're getting near filling the bank up or near going over-cycle. It takes up a lot of cycles.

Always wondered if it could be rewritten using the new "dec" command?