nested loops

[westray]

Is it possible to do nested loops like you can in basic.

i.e in basic

for y=0 to 5
for x=0 to 5
"do something"
next x
next y

[DanielRehn]

yes.... it's called fast loops in mmf!

[DavidN]

It takes a bit of getting your head round procedural events in MMF, but fastloops certainly make the process a bit easier. The event list is always read top to bottom before each frame is drawn, with the exception of fastloops which are executed as many times as they need to be before each frame.

Have a look for them in the Clickwiki, linked on the right.

[westray]

I know how to use fastloop when you are just using one loop.I was wondering if you could run a loop within a loop.this could be used for filling an array for example.

e.g loopindex("x"),loopindex("y"),0 could access data at that array position.

loop "y" would be started first and onloop "y" loop "x" would be started.Would this work?

[raytrace]

aslong as you don't nest a loop in itself then yes you can do this.

Or you could convert your X,Y to an ID and just run one loop

[westray]

Could you explain what you mean by giving it an ID.

[Surmulot]

Hello, this is how you should do :

1-Start loop ("LoopX") number of X in your array

2-On loop ("LoopX") :
Start Loop ("LoopY") number of Y in you array

3-On loop ("LoopY") :
you put any value in the array at Loopindex("LoopX"),Loopindex("LoopY")

I didn't check and perhaps I miss something, but it's roughly how you should do.

[raytrace]

Could you explain what you mean by giving it an ID.

If you are using tile based games then this is very useful. An ID is a unique value of each X,Y

Here are the conversion equations:

ID = Y * WIDTH + X

X = ID mod WIDTH

Y = floor(ID/WIDTH)