global angle ?

newMorningKingdoM

i dont event know if there is something like this exist ? global angle, but i dont know how to describe this problem either.

and this is the output: https://streamable.com/594wgp

what i need is this:

example:

i need the point to point angle. in the video as you guys can see, degree goes to 180, but its wierd because i draw a straight line. and the angle of the all the points to each other in that line needs to be 0 or close to 0(cause mause shake a little :) )

My purpose is detect the corner points of the draw so that godot understand what drawn is, is it a rectangle, or is a circle.

if there is a huge gap beetween angle of the points that means there is a corner so it might not be a circle.

example:

a -- b -- c -- d -- e-- 1----5---8-----30--- boooom when it come to the d and e points circle is broken.

this is my code that find the angles between points but im predy sure something wrong with it.

func _process(delta):
		for point_angles in range(all_points.size() - 1):
			angle_result = (int(rad2deg(abs(point_draw.angle_to_point($draw_line.points[point_angles-1])))))
			print (angle_result)

TwistedTwigleg

Oh, I think I see the issue. Yeah, the issue is that you are using global rotation, so for straight lines going up, down, left, right, you are getting the global rotation rather than the rotation relative to the last point.

Here's what I might try doing to get something similar to what you are looking for:

func _process(delta):
	var last_angle = null
	var angle_difference = 0
	for point_angles in range(all_points.size() - 1):
		if (last_angle != null):
			angle_result = (int(rad2deg(abs(point_draw.angle_to_point($draw_line.points[point_angles-1])))))
			angle_difference = last_angle - angle_result
			print ("Angle result: ", angle_result, " | angle difference: ", angle_difference)
		else:
			angle_result = (int(rad2deg(abs(point_draw.angle_to_point($draw_line.points[point_angles-1])))))
		last_angle = angle_result

Then from point to point in a line, you should get 0 or close to. Then if you suddenly get a 90 (or close to) angle difference, that would indicate the line took a 90 degree turn. Now, I'm not sure how you would detect a square out of that though, as it would need to detect 4 turns at 90 degrees and know that the shape is enclosed...

TwistedTwigleg

Did some research and it turns out recognizing shapes based on a series of points is apparently quite difficult or at least not terribly documented. I found this post on StackExchange though that may be helpful.