Collide with center of 2 actors

monkeed

How do I detect a collision with the center of 2 actors instead of the outer edges?

heathcc

When I have this scenario, I create a smaller actor that I constrain to the X,Y of the larger actor and make it transparent. Then assign collision rules to the smaller actor.

Clouds

If actor A's X position = actor B's X position

. . . .and . . .

actor A's Y position = actor B's Y position . .

. . . then their centres have 'collided'.




It's very unlikely to happen though.

heathcc

You could extend on Tynan's answer and make ranges since as states, that one pixel hit is pretty unlikely.

I wonder which has more overhead? Using two actors with a Collision behavior or rules (4?) to check for the intersect of two ranges.

JohnPapiomitis

Use magnitude.

monkeed

Wow, interesting options on this.

John, how would I use magnitude for this?

calvin9403

magnitude(actora'sx-actorb'sx,actora'sx-actorb'sy)

use that for collide(ex if smaller then 10 then...)

monkeed

Thanks for your help. I ended up going with heathcc's idea. I created the smaller transparent actor.