[Spike]

Could somebody give me a detailed explanation on how the spr_clist counter works? I've been messing with it, and can't quite seem to figure it all out... Thanks!

[Exophase]

spr_clistN is the collision list entry number N, starting at 0. Don't read past the total number of collisions reported (spr_collisions) because it'll be junk. For instance, if you do..

if c?? sprite_colliding p00 1 1

And sprite 0 here happens to be colliding with sprite 1 and that's it, and position 1 1, spr_collisions will be 1, and spr_clist0 will be 1, showing that it's colliding with sprite 1. If it collides with the background spr_clist0 will always be -1.

You might be referring to sprN_clist instead. That just invokes a collision test, for sprite N at its current position.

- Exo

[Spike]

can I just read sprN_clist normally? I.E, <if "spr5_clist" = -1 "Hitbackground">

[Exophase]

.... you don't understand. Everything has a collision LIST because it can hit multiple things. sprN_clist will invoke collision, it's write only. It doesn't have an actual value; if you treat it like it does it won't result in anything good.

set "spr5_clist" 1

That will invoke a collision test for sprite 5. Then..

if "spr_clist0" = -1 "bg collision"

- Exo

[Spike]

Ohhhh, I think I get it now! I'm off to keep messing with it then. Thanks again!

[T-Bone]

I've always had to work around that counter. Never could get it working the way i wanted. I must be extremely slow. I think this calls for a Sprites for Dumbies publish.


EDIT:

In the latest version of Super Mario for MegaZeux, I've used a series of If sprite (sprite) commands. I know this is the wrong approach but its the only way that works best for me. I don't know why collisions are so difficult. We must be doing something wrong. In fact I know we are. But whenever I'm in IRC i never get the correct help that I'm asking for

This post has been edited by T-bone6: 05 December 2006 - 04:58 AM

[T-Bone]

Cool thanks EXO i figured out how to make the sprite collisions work. Hopefully when I implement this into my games there wont be any complications with tons of sprites running around bumping into things using the same counters "spr_clist0".

I just used this simple bit of code for my Sprite 5 checks:

set "spr5_clist" 1
if c?? sprite_colliding p00 1 1 "check&spr_clist0&"
end

:check-1
*"Sprite 5 collided with Customblock"
end

:check0
* "Sprite 5 collided with Sprite 0"
end

:check1
* "Sprite 5 collided with Sprite 1"
end

etc

EDIT:
However, I'm still worried if this will work for my games with at the least 12 on board active sprites.

This post has been edited by T-bone6: 25 December 2006 - 01:07 AM

[Val]

oh dear god