extends CharacterBody2D


const SPEED = 300.0
const JUMP_VELOCITY = -400.0
@onready var right_cast: RayCast2D = $RightCast
@onready var left_cast: RayCast2D = $"Left cast"
@onready var right_spawn: Node2D = $RightSpawn
@onready var left_spawn: Node2D = $LeftSpawn
@onready var player_graphic: AnimatedSprite2D = $PlayerGraphic



enum FaceDirection{LEFT, RIGHT}
var facing:FaceDirection = FaceDirection.RIGHT

enum State{IDLE, RUN, JUMP, FALLING}
var current_state:State = State.IDLE
var pushTarget
var pushEnable = false
var direction
var upJump = false
func _physics_process(delta: float) -> void:
	#game loop
	handle_input()
	#calculate movment
	handle_movement(delta)
	#change states
	update_states()
	#play animations
	update_animation()
	#object raycasts
	#handle_collisions()
	# Add the gravity.
	
		
	move_and_slide()
	handle_collisions()
func handle_input():
	if Input.is_action_just_pressed("shove") && pushEnable:
		print("shove pressed")
		if facing == FaceDirection.RIGHT:
			pushTarget.apply_central_impulse(Vector2(1,-0.2)*700)
			pushEnable = false
		if facing == FaceDirection.LEFT:
			pushTarget.apply_central_impulse(Vector2(-1,-0.2)*700)
			pushEnable = false
			
	if Input.is_action_just_pressed("shoot"):
		print("shoot a bullet")
		if facing == FaceDirection.RIGHT:
			%SceneManager.makeBullet(right_spawn.global_transform, 700)
		if facing == FaceDirection.LEFT: 
			%SceneManager.makeBullet(left_spawn.global_transform,-700)
 	


	# Handle jump.x
	if Input.is_action_just_pressed("ui_accept") and is_on_floor():
		velocity.y = JUMP_VELOCITY
		current_state = State.JUMP
		upJump = true
	# 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")
	
func handle_collisions():
	for i in get_slide_collision_count():
		var c = get_slide_collision(i)
		if c.get_collider() is RigidBody2D:
			c.get_collider().apply_central_impulse(-c.get_normal() * 100 )
	
	if right_cast.is_colliding() && facing == FaceDirection.RIGHT:
		print("right cast collision")
		# get the thing i am colliding with
		var collider = right_cast.get_collider()
		if collider is Node && collider is RigidBody2D:
			print("i can shove this right")
			pushTarget = collider
			pushEnable = true
	if left_cast.is_colliding() && facing == FaceDirection.LEFT:
		print("left cast collision")
		var collider = left_cast.get_collider()
		if collider is Node && collider is RigidBody2D:
			print("i can shove this left")
			pushTarget = collider
			pushEnable = true
	if not right_cast.is_colliding() && not left_cast.is_colliding():
		pushEnable = false
func handle_movement(delta):
	if not is_on_floor():
		velocity += get_gravity() * delta
	
	if direction:
		velocity.x = direction * SPEED
		if direction <0:
			facing = FaceDirection.LEFT
			player_graphic.flip_h = true
		if direction >0:
			facing = FaceDirection.RIGHT
			player_graphic.flip_h = false
	else:
		velocity.x = move_toward(velocity.x, 0, SPEED)
func update_animation():
	match current_state:
		State.IDLE:
			player_graphic.play("Idle")	
		State.RUN:
			print("play run animation")
			player_graphic.play("run")
		State.JUMP:
			if upJump:
				player_graphic.play("Jump")
		State.FALLING:
			player_graphic.play("Falling")
func update_states():
	match current_state:
		#idle when movment in x
		State.IDLE when velocity.x !=0:
			current_state = State.RUN
		State.RUN:
			if velocity.x ==0:
				current_state = State.IDLE
		#jumping when reaching apex
		State.JUMP when velocity.y > 0:
			current_state = State.FALLING
		State.FALLING when is_on_floor():
			if velocity.x ==0:
				current_state = State.IDLE
			else:
				current_state = State.RUN
 

func _on_animation_finished() -> void:
	match current_state:
		State.JUMP:
			upJump = false