Error: godot collision not working

Solution

Detailed Solution for "Godot Collision Not Working" Error

1. Verify Collision Layers and Masks

• Open the project settings and go to "Layer Names > 2D Physics" or "Layer Names > 3D Physics".
• Define meaningful names for your layers (e.g., "player", "enemies", "walls").
• In your nodes' properties, set appropriate layers and masks.
• Ensure that the layers and masks are correctly configured for each node.

2. Check Collision Shapes

• Ensure each physics body has a CollisionShape or CollisionPolygon child.
• Verify that the shape closely matches the visible sprite or model.
• For 2D, use CollisionShape2D and Shape2D types.
• For 3D, use CollisionShape and Shape types.

3. Review Physics Process

• Make sure physics calculations happen in _physics_process(delta), not _process(delta).
• Verify that the physics code is correctly implemented and executed.

4. Inspect KinematicBody Movement

• Use move_and_slide() or move_and_collide() for proper collision detection.
• Ensure that the movement code is correctly implemented and executed.

5. Check RigidBody Interactions

• Ensure "Contact Monitor" is enabled for collision detection.
• Set "Contacts Reported" to a value greater than 0.
• Connect signals like body_entered for collision responses.

6. Review Area Nodes

• For trigger zones, use Area (3D) or Area2D nodes.
• Connect body_entered and body_exited signals for detection.

7. Debug Collisions

• Enable "Visible Collision Shapes" in the debug menu.
• Use print() statements in _physics_process() to verify code execution.
• Check the Output panel for warnings or errors.

8. Common Pitfalls

• Ensure nodes are not in different viewport containers.
• Check that the physics engine is not disabled in project settings.
• Verify that parent nodes don't have collision_layer or collision_mask set to 0.

By following these troubleshooting steps, you should be able to identify and resolve the "Godot collision not working" error. Remember to always backup your project before making major changes.