extends CharacterBody2D

const SPEED = 400.0
const ACCEL = 7.0
var direction = 0
var addedveloc = 0

const JUMP_VELOCITY = -450.0
const MAX_JUMPS = 2
var jumps = MAX_JUMPS

var wallKayote = 0

const FALL_SPEED = -JUMP_VELOCITY 
var falling = false

var floorTime = 0

var gravity = ProjectSettings.get_setting("physics/2d/default_gravity")

func isWallSliding():
	return is_on_wall_only() and direction

func getGravMulti():
	var axis = (gen.boolToNumb(Input.is_action_pressed("up"), 1))
	if velocity.y < 0:
		return axis
	return 1

func launch(veloc):
	addedveloc = veloc
	velocity.x = veloc

signal Jumped

func _physics_process(delta):
		
	direction = round(Input.get_axis("left", "right"))
	
	wallKayote -= delta
	
	if not is_on_floor():
		if velocity.y < 1500:
			var lowGrav = velocity.y < 0 and (Input.is_action_pressed("up") or Input.is_action_pressed("jump"))
			velocity.y += gravity * delta / getGravMulti()
		
		floorTime = 0
	else:
		floorTime += delta
		jumps = MAX_JUMPS
		falling = false
	
	if isWallSliding():
		wallKayote = 0.2
		falling = false
	
	if Input.is_action_just_pressed("respawn") or position.y > 5000:
		position = Vector2.ZERO
		velocity = Vector2.ZERO
	
	if Input.is_action_just_pressed("jump"):
		if wallKayote > 0 and not is_on_floor():
			wallKayote /= 2
			if Input.is_action_pressed("down"):
				launch(get_wall_normal().x * SPEED * 2)
				velocity.y = JUMP_VELOCITY / 1.8
			else:
				launch(get_wall_normal().x * SPEED * 1.5)
				velocity.y = clamp(velocity.y + JUMP_VELOCITY, -INF, JUMP_VELOCITY)
		elif jumps > 0:
			Jumped.emit()
			velocity.y = clamp(velocity.y + JUMP_VELOCITY, -INF, JUMP_VELOCITY)
			jumps -= 1
			falling = false
		
	if Input.is_action_just_pressed("down") and not falling and not isWallSliding():
		falling = true
		velocity.y = clamp(velocity.y + FALL_SPEED, FALL_SPEED, INF)
	
	if isWallSliding():
		var upDown = clamp(Input.get_axis("up", "down"), -0.5, 1)
		var holdMulti = (upDown * 2) + 1
		velocity.y = lerpf(velocity.y, clamp(velocity.y, JUMP_VELOCITY, 100 * holdMulti), delta * 10)
	
	var finalSpeed = clamp(abs(velocity.x), SPEED, INF) 
	if floorTime > 0.05:
		finalSpeed = clamp(lerp(finalSpeed, SPEED, delta * 20), SPEED, INF)
	
	velocity.x = lerp(velocity.x, direction * finalSpeed, delta * ACCEL)
	
	if abs(velocity.x) < abs(addedveloc):
		addedveloc = lerp(addedveloc, velocity.x, ACCEL * 2 * delta)
		velocity.x += addedveloc * delta * 15
		
	addedveloc = lerpf(addedveloc, 0, delta * 5)

	move_and_slide()