I'm in need of a routine that returns a random integer between the minimum value passed in the 'a' register and the maximum value passed in the 'b' register. This routine needs to be in an app, so I would rather not use a library routine (of course I could always just use the routine itself in the app, but is there a simpler way?)
What do you have against the standard iRandom library? It returns a number between 0 and max, so all you need to do is set max=(b-a), and then add a to the result. In other words:
Your_random_val = a+iRandom(0,b-a)
Edit: And before you tell me I ignored your "no libraries" caveat, remember that the Ion source is freely available.
Your_random_val = a+iRandom(0,b-a)
Edit: And before you tell me I ignored your "no libraries" caveat, remember that the Ion source is freely available.
I know I CAN use it, I was just asking about alternatives. Although just using the routine's source may be easiest.
That would work. GlassOS uses a random number generator run by the interrupt. I would recommend just using the source and get coding 
ACagliano wrote:
I know I CAN use it, I was just asking about alternatives. Although just using the routine's source may be easiest.
You could implement yourself a nice simple LFSR-based random number generator, such as a Mersenne Twister. There is tons of example code online for that.
Ok. Will do!
One more thing: Where can I file a bug report for WabbitCode. It crashes all the time on OS X. Hangs, then crashes.
One more thing: Where can I file a bug report for WabbitCode. It crashes all the time on OS X. Hangs, then crashes.
bump....!!
Also, slightly off topic:
1. Should bullet code and enemy AI position updates (in a game) occur once per cycle of the main loop, or via a custom interrupt routine? What is the recommendation for this?
2. If the answer to #1 is interrupts, is there a distinct way to invoke a custom interrupt within an APP? Or would this being an APP cause you to recommend "cycle" for #1 ?
Also, slightly off topic:
1. Should bullet code and enemy AI position updates (in a game) occur once per cycle of the main loop, or via a custom interrupt routine? What is the recommendation for this?
2. If the answer to #1 is interrupts, is there a distinct way to invoke a custom interrupt within an APP? Or would this being an APP cause you to recommend "cycle" for #1
? 
ACagliano wrote:
bump....!!
Also, slightly off topic:
1. Should bullet code and enemy AI position updates (in a game) occur once per cycle of the main loop, or via a custom interrupt routine? What is the recommendation for this?
2. If the answer to #1 is interrupts, is there a distinct way to invoke a custom interrupt within an APP? Or would this being an APP cause you to recommend "cycle" for #1 ?
Also, slightly off topic:
1. Should bullet code and enemy AI position updates (in a game) occur once per cycle of the main loop, or via a custom interrupt routine? What is the recommendation for this?
2. If the answer to #1 is interrupts, is there a distinct way to invoke a custom interrupt within an APP? Or would this being an APP cause you to recommend "cycle" for #1
?You can totally do interrupts in an APP just like you can in a program, and you can do them the same way: just copy the interrupt stub to the appropriate location, set the vector, and start IM 2. However, I would not do the actual updates of bullets and enemies in an interrupt routine, simply because it takes too many processor cycles to run all that logic. Instead, I would update a timer variable and have your enemies move a certain amount each tick.
ACagliano wrote:
Ok. Will do!
One more thing: Where can I file a bug report for WabbitCode. It crashes all the time on OS X. Hangs, then crashes.
You can post bug reports in the WabbitStudio thread here on Cemetech. One more thing: Where can I file a bug report for WabbitCode. It crashes all the time on OS X. Hangs, then crashes.
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