class_name Player extends CharacterBody2D
@onready var right_cast = $RightCast
@onready var left_cast = $LeftCast
@onready var right_spawn = $RightSpawn
@onready var left_spawn = $LeftSpawn
@onready var player_graphic = $PlayerGraphic

const SPEED = 300.0
const JUMP_VELOCITY = -400.0
var direction
enum FaceDirection{LEFT, RIGHT}
var facing:FaceDirection = FaceDirection.RIGHT
enum State{IDLE,RUNNING,JUMPING,FALLING}
var currentState:State = State.IDLE

var pushTarget:RigidBody2D
var pushEnabled:bool = false

var upJump:bool = false

func _physics_process(delta: float) -> void:
	handle_input()
	handle_movement(delta)
	handle_state()
	handle_animation()
	move_and_slide()
	handle_collisions()
			
func handle_input()->void:
	if Input.is_action_just_pressed("Chuck"):
		print("Chuck the chicken (inside joke)")
		%SceneManager.makeGrenade(right_spawn.global_transform, 1)
	if Input.is_action_just_pressed("Force Push") && pushEnabled:
		if not pushTarget is RigidBody2D:
			return
		#what direction to shove
		var shoveDirection:int
		match facing:
			FaceDirection.RIGHT:
				shoveDirection =1
			FaceDirection.LEFT:
				shoveDirection =-1
		pushTarget.apply_central_impulse(Vector2(shoveDirection,-1)* 1000)
		
	if Input.is_action_just_pressed("ui_accept") and is_on_floor():
		velocity.y = JUMP_VELOCITY
		upJump = true
		currentState = State.JUMPING

	# Get the input direction and handle the movement/deceleration.
	# As good practice, you should replace UI actions with custom gameplay actions.
	direction = Input.get_axis("ui_left", "ui_right")
	if direction<0:
		facing = FaceDirection.LEFT
		player_graphic.flip_h = true
	if direction>0:
		facing = FaceDirection.RIGHT
		player_graphic.flip_h = false
		
func handle_movement(delta)->void:
	# Add the gravity.
	if not is_on_floor():
		velocity += get_gravity() * delta
	
	if direction:
		velocity.x = direction * SPEED
	else:
		velocity.x = move_toward(velocity.x, 0, SPEED)
		
func handle_collisions()->void:
	if right_cast.is_colliding() and facing==FaceDirection.RIGHT:
		print("Right is working")
		pushEnabled = true
		var collider = right_cast.get_collider()
		if collider is RigidBody2D:
			pushTarget = collider
		
	if left_cast.is_colliding() and facing==FaceDirection.LEFT:
		print("Left is working")
		pushEnabled = true
		var collider = left_cast.get_collider()
		if collider is RigidBody2D:
			pushTarget = collider
	
	if not right_cast.is_colliding() && not left_cast.is_colliding():
		pushEnabled = false
	for i in get_slide_collision_count():
		var c = get_slide_collision(i)
		if c.get_collider() is RigidBody2D:
			#deliver the impact
			c.get_collider().apply_central_impulse(-c.get_normal() * 100)
			
			
			
func handle_state():
	match currentState:
		State.IDLE when velocity.x != 0:
			currentState = State.RUNNING
		State.RUNNING when velocity.x == 0:
			currentState = State.IDLE
		State.JUMPING when velocity.y > 0:
			currentState = State.FALLING
		State.FALLING when velocity.y == 0:
			currentState = State.IDLE
func handle_animation():
	match currentState:
		State.IDLE:
			player_graphic.play("idle")
		State.RUNNING:
			player_graphic.play("Run")
		State.JUMPING:
			if upJump:
				player_graphic.play("jump")
		State.FALLING:
			if not upJump:
				player_graphic.play("fall")
		


func _on_player_graphic_animation_finished():
	match currentState:
		State.JUMPING:
			upJump = false