Area2Ds are slow-ish at detecting bodies

NormanTS1 commented 3 months ago

Tested versions

Reproducible in Godot v4.3.beta1

System information

Windows 11 - Godot v4.3.beta1 - OpenGL (Compatibility)

Issue description

I have a player for my Mario fan game, and i use staticbodies as blocks. To detect if the player is on the bottom side of a block, i use an area2d. The player can sprint; and when he hits the area2d's block on the edge in a specific pixel (probably) while sprinting, it doesn't bump.

If I don't sprint however, everything works just fine. So my theory is that the player hits and leaves the area so fast that the area2d below the block doesn't detect it immediately.

Steps to reproduce

Make simple player for platfomer games (that can walk, jump, and run at least), and assign it to a group
Make the question block using a staticbody2d and add an area2d under the block so that the player can interact with it from the bottom side.

connect the area2d's _body_entered(body:Node2D) signal to the block script, and then write this:

for player in get_tree().get_nodes_in_group("player_group_name"):
  if body == player:
    print("bump);

Play the game and test it, by jumping to the edge of the block a few times until it doesn't print anything.

Here's a project i made rapidly that showcases the issue, i also added a footage inside the file so you can see how to achieve the problem.

area2d-issue.zip

AThousandShips commented 3 months ago

Please upload an MRP to make this easier to test:

A small Godot project which reproduces the issue, with no unnecessary files included. Be sure to not include the .godot folder in the archive (but keep project.godot).
Having an MRP is very important for contributors to be able to reproduce the bug in the same way that you are experiencing it. When testing a potential fix for the issue, contributors will use the MRP to validate that the fix is working as intended.
Drag and drop a ZIP archive to upload it (max 10 MB). Do not select another field until the project is done uploading.
Note for C# users: If your issue is not C#-specific, please upload a minimal reproduction project written in GDScript. This will make it easier for contributors to reproduce the issue locally as not everyone has a .NET setup available.

NormanTS1 commented 3 months ago

working on it rn

NormanTS1 commented 3 months ago

is it okay if i show it with a footage?

AThousandShips commented 3 months ago

An MRP would be best but footage would help with the details

NormanTS1 commented 3 months ago

i'll send both

NormanTS1 commented 3 months ago

area2d-issue.zip

NormanTS1 commented 3 months ago

Here's the MRP, you can also find the footage inside the file

Calinou commented 3 months ago

@NormanTS1 In the future, please use the Edit button (located behind the … icon in the top-right corner of your comments) instead of multi-posting.

NormanTS1 commented 3 months ago

Sure (if you mean for the mrp too, it's also in the main comment too

NormanTS1 commented 3 months ago

is there something i need to know? like, did you people experienced the bug?

NormanTS1 commented 3 months ago

i also tried changing the entire bump block system, but same results btw

godotengine / godot