input states godot

input_states.gd

### class for input handling. Returns 4 button states
var input_name
var prev_state
var current_state
var input


var output_state
var state_old
var semaphore = false

### Get the input name and store it
func _init(var input_name):
	self.input_name = input_name
	
### check the input and compare it with previous states
func check():
	input = Input.is_action_pressed(self.input_name)
	prev_state = current_state
	current_state = input
	
	state_old = output_state
	
	if not prev_state and not current_state:
		output_state = 0 ### Released
	if current_state and not semaphore:
		semaphore = true
		output_state = 1 ### Just Pressed
	if prev_state and current_state:
		output_state = 2 ### Pressed
	if prev_state and not current_state:
		output_state = 3 ### Just Released
	
	if not input and semaphore:
		semaphore = false
	
#	print("input; ", input_name , "\nstate: " , output_state)
	return output_state