GodotThreadSilly.gd

extends Node
class_name MainLoopThread
"""
	MainLoopThread Class Script
	Creates a continously running thread (until it causes a stack overflow)
	With a configurable timestep
	Thread can recieve inputs to work on each tick, and provide output
	TODO: Move thread internal functions, and thread_out signal, to seperate class
	DONT TRY THIS AT HOME THIS IS A MEME
"""
signal thread_in
signal thread_out

var _thrd: Thread = Thread.new()
var _thrd_timer: Timer = Timer.new()

	# Set this to give data to the thread.
var thread_input = null


func _ready() -> void:
	add_child(_thrd_timer)
	_thrd_timer.connect("timeout", self, "_on_timeout")
	_thrd_timer.wait_time = 1
	_thrd_timer.one_shot = false
	
	connect("thread_out", self, "_on_thread_out")
	
	# warning-ignore:return_value_discarded
	var err: int = _thrd.start(self, "t_loop", _thrd_timer)
	assert(err == OK)
	
	_thrd_timer.start()


func _on_thread_out(thread_time, thread_out) -> void:
	printt("Thread Output: ", thread_time, thread_out)


func _on_timeout() -> void:
	emit_signal("thread_in", thread_input)


func t_loop(thrd_timer) -> void:
	var time: int = 0
	while true:
		var in_val = yield(thrd_timer, "thread_in")
		time += 1
		# Emit [time, outval]
		emit_signal("thread_out", [time, in_val])