extends State
class_name PlayerState

@export var move_speed = 10.0
@export var move_transition_speed = 10.0
@export var health_lost_on_fall = 20.0

# respawn after falling
const FALL_TIME_TO_RESPAWN : float = 3.0
const TIME_TO_CACHE_POSITION : float = 2.0
var ground_pos_cached = []
var fall_timer = FALL_TIME_TO_RESPAWN
var ground_pos_timer = 0

@onready var character = get_parent().character

func Update(delta):
	pass

func respawn_on_fall(delta):
	if character.is_on_floor():
		if ground_pos_timer > 0:
			ground_pos_timer -= delta
		else:
			ground_pos_timer = TIME_TO_CACHE_POSITION
			ground_pos_cached.append(character.global_position)
			if ground_pos_cached.size() > 2:
				ground_pos_cached.pop_front()
	else:
		if fall_timer > 0:
			fall_timer -= delta
		else:
			fall_timer = FALL_TIME_TO_RESPAWN
			character.global_position = ground_pos_cached[0]
			character.health -= health_lost_on_fall

func apply_gravity(delta):
	if !character.is_on_floor():
		character.velocity.y -= 9.8 * delta

func body_look_at_mouse():
	var mouse_raycast = MousePos.get_mouse_world_position()
	if mouse_raycast != null:
		character.body.look_at(Vector3(mouse_raycast.x,character.body.global_position.y,mouse_raycast.y),Vector3.UP)

func standard_movement(delta):
	if character.is_on_floor():
		var input_dir = Input.get_vector("move_left", "move_right", "move_forward", "move_backward")
		
		if input_dir != null:
			character.velocity.x = lerp(character.velocity.x, input_dir.x * move_speed, delta * move_transition_speed)
			character.velocity.z = lerp(character.velocity.z, input_dir.y * move_speed,delta * move_transition_speed)
	else:
		if character.velocity:
			const MOMENTUM = 2.0
			character.velocity.x = lerp(character.velocity.x, 0.0,delta * MOMENTUM)
			character.velocity.z = lerp(character.velocity.z, 0.0,delta * MOMENTUM)