Pixel-Platformer/Player.gd

# Extends
extends KinematicBody2D

class_name Player



enum { MOVE, CLIMB, TRANSITION }



export(Resource) var moveData

var velocity = Vector2.ZERO
var state = MOVE

onready var animatedSprite = $AnimatedSprite
onready var ladderCheck = $LadderCheck
onready var ladderCheckTwo = $LadderCheck2

func _ready():
	animatedSprite.frames = load("res://PinkPlayerSkin.tres")




# Called every physics frame.
func _physics_process(delta):
	var input = Vector2.ZERO
	input.x = Input.get_axis("ui_left", "ui_right")
	input.y = Input.get_axis("ui_up", "ui_down")
	print(state)
	match state:
		MOVE: move_state(input)
		CLIMB: climb_state(input)
		TRANSITION: transition_state(input)
	

func is_on_ladder():
	if not ladderCheck.is_colliding(): return false
	var collider = ladderCheck.get_collider()
	if not collider is Ladder and not collider is LadderTop: return false
	return true

func is_ontop_ladder():
	if ladderCheck.is_colliding():
		if ladderCheck.get_collider() is LadderTop:
			if not ladderCheckTwo.is_colliding():
				return true
	return false
	

func apply_gravity():
	velocity.y += moveData.GRAVITY
	velocity.y = min(velocity.y, 200)

func apply_friction():
	velocity.x = move_toward(velocity.x, 0, moveData.FRICTION)

func apply_acceleration(amount):
	velocity.x = move_toward(velocity.x, moveData.MAXIMUM_SPEED * amount, moveData.ACCELERATION)
	pass

func move_state(input):
	if not is_on_ladder() and not is_ontop_ladder(): state = MOVE
	if is_on_ladder(): state = CLIMB
	if is_ontop_ladder(): state = TRANSITION

	apply_gravity()
	if input.x > 0:
		animatedSprite.flip_h = true
	if input.x < 0:
		animatedSprite.flip_h = false
	
	if input.x == 0:
		apply_friction()
		animatedSprite.animation = "Idle"
	else:
		apply_acceleration(input.x)
		animatedSprite.animation = "Run"
	
	if is_on_floor():
		if Input.is_action_just_pressed("ui_up"):
			velocity.y = moveData.MAXIMUM_JUMP
	else:
		animatedSprite.animation = "Jump"
		if Input.is_action_just_released("ui_up") and velocity.y < moveData.MINIMUM_JUMP:
			velocity.y = moveData.MINIMUM_JUMP
		if velocity.y > 0:
			velocity.y += moveData.ADDITIONAL_FALL_GRAVITY
	
	var was_in_air = not is_on_floor()
	velocity = move_and_slide(velocity, Vector2.UP)
	var just_landed = is_on_floor() and was_in_air
	if just_landed:
		animatedSprite.animation = "Run"
		animatedSprite.frame = 1


func climb_state(input):
	if not is_on_ladder() and not is_ontop_ladder(): state = MOVE
	if is_on_ladder(): state = CLIMB
	if is_ontop_ladder(): state = TRANSITION
	velocity = input * 50
	velocity = move_and_slide(velocity, Vector2.UP)

func transition_state(input):
	if not is_on_ladder() and not is_ontop_ladder(): state = MOVE
	if is_on_ladder(): state = CLIMB
	if is_ontop_ladder(): state = TRANSITION

	if not is_ontop_ladder():
		velocity.y += moveData.GRAVITY
		velocity.y = min(velocity.y, 200)
	
	if input.x > 0:
		animatedSprite.flip_h = true
	if input.x < 0:
		animatedSprite.flip_h = false
	
	if input.x == 0:
		apply_friction()
		animatedSprite.animation = "Idle"
	else:
		apply_acceleration(input.x)
		animatedSprite.animation = "Run"
	
	if is_ontop_ladder():
		if Input.is_action_just_pressed("ui_up"):
			velocity.y = moveData.MAXIMUM_JUMP
	else:
		animatedSprite.animation = "Jump"
		if Input.is_action_just_released("ui_up") and velocity.y < moveData.MINIMUM_JUMP:
			velocity.y = moveData.MINIMUM_JUMP
		if velocity.y > 0:
			velocity.y += moveData.ADDITIONAL_FALL_GRAVITY
	
	if Input.is_action_just_pressed("ui_down"):
		var tr = ladderCheck.get_collider().get_node("CollisionShape2D").get_transform()
		tr.origin = Vector2.ZERO
		tr = tr.rotated(float(180))
		ladderCheck.get_collider().get_node("CollisionShape2D").set_transform(tr)
		velocity.y = 10
	
	var was_in_air = not is_ontop_ladder()
	velocity = move_and_slide(velocity, Vector2.UP)
	var just_landed = is_ontop_ladder() and was_in_air
	if just_landed:
		animatedSprite.animation = "Run"
		animatedSprite.frame = 1