extends CharacterBody2D

const GRAVITY : int = 1000
const MAX_VELOCITY : int = 600
const FLAP_SPEED : int = -500

# Called when the node enters the scene tree for the first time.
func _ready():
	pass # Replace with function body.

# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta):
	pass

func _input(event):
	if event.is_action_pressed("jump"):
		flap()

func _physics_process(delta):
	velocity.y += GRAVITY * delta
	if velocity.y > MAX_VELOCITY:
		velocity.y = MAX_VELOCITY
	move_and_collide(velocity * delta)

func flap():
	velocity.y = FLAP_SPEED