Opposite of collides

[pika11]

Is there a similar event like collides but for when a collision ends? Maybe the collide callback could return a function for when the collision ends?

I’m guessing the way to do this would be on action and check if there are any collisions? or am I missing something?

thanks in advance! kaboom is really cool! 🚀

[slmjkdbtl]

You mean an event when an object stops colliding with another?

Yeah the way to do it now would be in an action (which is deprecated in favor of onUpdate now) and check for isColliding()\

But I think it's possible to support that built-in, since kaboom are also already doing some internal bookkeeping about if 2 collided objects are still colliding.

[pika11]

yeah exactly. Thanks!

would be cool to have it just to avoid the extra “manual” checks.

[slmjkdbtl]

Yeah I'd like that too. Do you happen to have name suggestions? I'm thinking something like onCollideExit or onCollideEnd but not sure yet

[pika11]

tough call! naming things is hard 😄. I would lean towards onCollideEnd.

great job once again on kaboom, docs are 💯

[oaklandgit]

@pika11 -- In case it's helpful, I had to solve this problem today so I tried @slmjkdbtl's suggestion. This works:

(I want to show elements when the "player" is standing in front of a "computer", but remove them after he's moved away.)

export const computer = () => [
    k.sprite("computer"),
    k.area(),
    {
        add() {
            this.onCollide("player", (p) => {
                console.log("player hovering")
                this.objColliding = p
            })

            this.onUpdate(() => {
                if (!this.objColliding) return
                if(!this.isColliding(this.objColliding)) {
                    console.log("player leaving")
                    this.objColliding = null
                }
            })
        }
    }