Why doesn't my collision detection between two Area2D objects in Godot 4 work?

Click For Summary
The discussion focuses on detecting collisions between a circle and a floor in a script where the circle is falling. The initial setup appears correct, but the collision detection is not functioning as expected. Key points include the importance of understanding the tutorial material rather than following it blindly and the suggestion to verify if the '_on_body_entered' event is triggering before implementing additional collision code. This indicates a need for troubleshooting to identify the underlying issue with the collision detection.
Darkmisc
Messages
222
Reaction score
31
TL;DR
I've followed steps from a tutorial on how to set up collision detection between two Area2D objects. It's not working and I can't figure out why.
Hi everyone

I'd like to detect collisions between a circle and a floor.

I have set them up as follows:

1684196663869.png

1684196709419.png
1684196621540.png


1684196743781.png
The script runs fine (it's just a circle falling towards the floor), but nothing happens when the two objects collide.

Does anyone know what I've done wrong?Thanks
 
Technology news on Phys.org
Darkmisc said:
Does anyone know what I've done wrong?
Yes, (1) following a tutorial blindly without thinking and (2) giving up before you have tried to find the problem.

Before you add the 'if body.is_in_group' code you should test to see if the '_on_body_entered' event is firing.
 

Thread 'Claude used to facilitate a cyberattack'

Anthropic announced that an inflection point has been reached where the LLM tools are good enough to help or hinder cybersecurity folks. In the most recent case in September 2025, state hackers used Claude in Agentic mode to break into 30+ high-profile companies, of which 17 or so were actually breached before Anthropic shut it down. They mentioned that Clause hallucinated and told the hackers it was more successful than it was...
View full post »

Similar threads

How do I connect a button pressed signal with code in Godot 4?
  • · Replies 1 ·
Replies
1
Views
5K
How do I stop my laser from destroying two items with one shot? (game design)
  • · Replies 10 ·
Replies
10
Views
2K
Why does my Godot object only spawn once?
  • · Replies 2 ·
Replies
2
Views
2K
Why do my sprites turn into black squares after I show an AdMob video?
  • · Replies 1 ·
Replies
1
Views
2K
Why isn't my joystick's 2nd circle visible when it's a child node?
  • · Replies 1 ·
Replies
1
Views
2K
Collisions Between Two Bodies Undergoing Multiple Transformations
  • · Replies 21 ·
Replies
21
Views
4K
Why does my if-statement not work when I have (x-100) instead of x?
  • · Replies 5 ·
Replies
5
Views
2K
Python Really simple Python program to simulate inelastic collision
  • · Replies 2 ·
Replies
2
Views
3K
I Work Done/Energy Transferred in One Dimensional Collision
  • · Replies 5 ·
Replies
5
Views
2K
Physics Simulation Question (Collision Detection no physics knowledge required)
  • · Replies 3 ·
Replies
3
Views
4K