@tool
extends Node

## ANGLES

# Check if a colliding body is aligned within a given angle of the object
	# max_angle_diff --- note: set to 1 if angle won't be counted
	 # currently only works when objects are scaled (1,1,1)
func angle_velocity_aligned(source:Node, source_angle:Vector3, body:Node, max_angle_diff:Vector3): 
		var obj_direction = source.basis * source_angle
		var player_direction = body.velocity.normalized()
		var diff = abs(abs(obj_direction) - abs(player_direction))
		if diff.x <= max_angle_diff.x and diff.y <= max_angle_diff.y and diff.z <= max_angle_diff.z:
			return true
		else:
			return false

#pass in a dictornary of weighted random choices, returns id of selection
func weighted_random(choices):
	var sum_of_choices = 0.0
	
	#Get sum of all choices
	for i in choices:
		sum_of_choices += choices[i]
	
	var random_number = randf_range(0,sum_of_choices)
	print("----------------------------------------------------------------")
	print("CHOICES: ",choices)
	print("SUM OF CHOICES: ",sum_of_choices)
	print("RANDOM NUMBER: ",random_number)
	
	for i in choices:
		if random_number < choices[i]:
			print("SELECTION: ", i)
			print("----------------------------------------------------------------")
			return i
		random_number -= choices[i]

func only_valid_chars(input_string: String) -> String:
	var valid_chars = ""
	
	for char in input_string:
		if char.is_valid_identifier():
			valid_chars += char
	
	return valid_chars