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11 - Collider Isolation

From edition=11 onwards, if you create a collider with an <Id>, for example PolygonCollider<myShield>, the collision events will be sent to both BeforeCollide/AfterCollide as well as BeforeCollide<myShield>/AfterCollide<myShield>. Previously they would only be sent to the latter. This would cause people to spend a lot of time debugging why they were not getting any collision events on BeforeCollide and AfterCollide. This breaking change helps Easel match people's expectations better.

Upgrade instructions​

First, set edition=11 (or higher) in your easel.toml file:

[engine]
edition = 11

In your Editor, search all files for the string PolygonCollider< (the angle bracket has been left open intentionally). If you find any matches, you may need to upgrade your code to the new behavior.

Let's say you have a collider like this (parameters omitted for brevity):

PolygonCollider<myShield>(...)

This will now be sending its collision events to BeforeCollide/AfterCollide as well as BeforeCollide<myShield>/AfterCollide<myShield>.

  • If you don't have any code that listens to BeforeCollide/AfterCollide, you do not need to do anything.
  • If you do have code that listens to BeforeCollide/AfterCollide and you don't want to receive the events twice, you should add the isolate=true parameter to your PolygonCollider call. This will make sure that the collider only sends events to BeforeCollide<myShield>/AfterCollide<myShield>, like before.

Opt-out​

If you would like to temporarily opt-out your entire project from this change, you can set isolateCollidersByDefault=true in legacy.toml. This will preserve the old behavior until you have the time to upgrade your code. Create a legacy.toml in the root of your project that looks like this:

[legacy]
isolateCollidersByDefault = true