adding CollisionPolygon2D at runtime

Kayl

I’m trying to realize a portal system, and im stuck with the following issue: i generate two additional CollisionPolygon2D through the portal code for the overlap between a portal polygon and the entity polygon and add them to my player/bullet. this does seem to work, the debug collision shapes are correct and the collision area2d detects them, but if i check with get overlapping areas only those that overlap the core polygon that i added in editor work. I update them every frame, but that isnt the issue - after adding a test variable that freezes their updates they still dont detect anything. this isnt a layer or mask issue, as the in editor polygon works fine

DaveTheCoder

I've added CollisionShape2D's at runtime without any problems. I don't think CollisionPolygon2D's would behave any differently.

There's probably some setting that you're missing.

Kayl but if i check with get overlapping areas only those that overlap the core polygon that i added in editor work.

I don't understand that part of your post.

Kayl

DaveTheCoder I use another polygon as a source for the overlaps, its a child of the same area2d, if i dont disable it like im intending to, it does properly detect collisions, so the issue isnt in the area2d.

var colsame=CollisionPolygon2D.new()
		var colopp=CollisionPolygon2D.new()
		colsame.polygon=texcoll.polygon
		colopp.polygon=texcoll.polygon
		colsame.set_deferred("disabled",false)
		colopp.set_deferred("disabled",false)
		i.get_child(1).add_child(colsame)
		i.get_child(1).add_child(colopp)
		colsame.top_level=true
		colopp.top_level=true
		colsame.global_position=Vector2(0,0)
		colopp.global_position=Vector2(0,0)
		collist.append([collink,colsame,colopp])

this is when i add them, afterwards i update them frame by frame with an algorithm that calculates an intersection of the source polygon with the portal colliders every frame, but even if i stop updating they still do not detect collisions

Kayl

Kayl
the intersections are calculated as intended, and are visible properly in the debug shapes, but they do not detect the area 2d thats blue in the image, if i move the object so far it actually teleports and the source polygon moves, only then are collisions found, not when the split collider added in code is there

xyz

Kayl Make a MRP