Draws a Histogram of your last 300 fps

fps_histogram.gd

extends Node2D

# Declare memr variables here. Examples:
# var a = 2
# var b = "text"

# Called when the node enters the scene tree for the first time.

var _fps_ticker_data = []
var fpskeydown = false
export var draw_graph = false
func _ready():
	pass # Replace with function body.
func _draw():
	if draw_graph:		
		_setup_chart()
	pass
# Called every frame. 'delta' is the elapsed time since the previous frame.
#func _process(delta):
#	pass
func _input(event):
	#print(!draw_graph)
	#if  (event.scancode == KEY_F10) == false:
	#	fpskeydown = false
	#	print("done")
	pass

func _process(delta):	
	if Input.is_key_pressed(KEY_F10) == true and fpskeydown == false:
		fpskeydown = true
		_fps_ticker_data = []
		draw_graph = !draw_graph
		print(!draw_graph)	
	if Input.is_key_pressed(KEY_F10) == false and fpskeydown == true:
		fpskeydown = false
		#draw_rect(Rect2(Vector2(0,0),Vector2(300,60)),Color(0,0,0))
		print("done")
		update()
	if draw_graph:
		update()
	pass	
	

func _setup_chart():	
	for i in range(6):
		draw_line(Vector2(60 * i,0),Vector2(60*i,60),Color.gray)
	pass
	draw_line(Vector2(0,30),Vector2(300,30),Color.yellow)
	draw_line(Vector2(0,60),Vector2(300,60),Color.red)
	
	_fps_ticker_data.append(Engine.get_frames_per_second())
	if _fps_ticker_data.size() > 300:
		_fps_ticker_data.pop_front()	
	
	for i  in range(1,_fps_ticker_data.size()):
		draw_line(Vector2(i-1, 60 - _fps_ticker_data[i-1]+1),Vector2(i,60-_fps_ticker_data[i]+1),Color.cyan)
		#draw_line(Vector2(i+1, 60 - _fps_ticker_data[i]+2),Vector2(i+1,60-_fps_ticker_data[i]+2),Color.white)