Is there any way to make callback on every time RigidBody2D makes full circle (360° rotation)

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:information_source: Attention Topic was automatically imported from the old Question2Answer platform.
:bust_in_silhouette: Asked By salomander86
:warning: Old Version Published before Godot 3 was released.

So, I have an object, it rotates by impulse and I need to know when it done full circle. Is there any easy way to do it?

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:bust_in_silhouette: Reply From: avencherus

I wouldn’t say this would be the best way, but one idea is just to accumulate the angular differences and check them. There is certainly a more direct way of calculating it if you extract all the variables, but my physics knowledge is rudimentary.

extends RigidBody2D

func _ready():
	prev_degrees = get_rotd()
	set_fixed_process(true)

var rotated_degrees = 0.0
var prev_degrees

func _fixed_process(delta):
	
	var curr_degrees = get_rotd()
	
	rotated_degrees += abs(abs(prev_degrees) - abs(curr_degrees))

	
	if(rotated_degrees >= 360.0):
		print("360 rotation")
		rotated_degrees -= 360.0
	
	prev_degrees = curr_degrees

I’ve done something very similar to your idea, but they both looks like ugly bicycle ); Although, it works, so, thanks for suggestion!

salomander86 | 2017-07-16 16:40