extends Node2D

# ActionState should probably be expandable to
enum ActionState {None, Deploying, Firing, Charging}
enum MoveState {Still, Moving, Dashing, Loading}

@export var speed = 100 # How fast the player will move (pixels/sec).
@export var dash_speed = 200
@export var dash_end = 0.8
@export var dash_cooldown = 0.5

const drawpile = [];
const hand = [];
const discard_pile = [];

var screen_size # Size of the game window.
var action_state = ActionState.None
var move_state = MoveState.Still

var charge_level = 0;
var charge_rate = 1;
var charged = false;

var dash_timer = 0;
var dash_cooldown_timer = 0;
var dash_on_cooldown = false;
var dash_ease_factor_minimum = speed / float(dash_speed)

var move_direction = Vector2.ZERO;
var velocity = Vector2.ZERO # The player's movement vector.

func update_move_direction():
		if Input.is_action_pressed("move_right"):
			move_direction.x += 1
		if move_direction.is_action_pressed("move_left"):
			move_direction.x -= 1
		if Input.is_action_pressed("move_down"):
			move_direction.y += 1
		if Input.is_action_pressed("move_up"):
			move_direction.y -= 1

func charge():
		# Charge attack
	if not charged and action_state == ActionState.Charging:
		charge_level += charge_rate;
		if charge_level >= 100:
			charged = false;
			charge_level = 0;
	elif charge_level > 0:
		# Gradual charge dropoff
		charge_level = max(charge_level - charge_rate * 2, 0);

func dash(delta):
	dash_timer += delta;
	const easeFactor = 1;
	velocity = move_direction.normalize() * dash_speed * easeFactor;

	if (dash_timer >= dash_end):
		dash_on_cooldown = true;
		dash_timer = 0;

func _ready():
	screen_size = get_viewport_rect().size

func _process(delta):
	if (move_state != MoveState.Dashing):		
		update_move_direction();
	if (dash_on_cooldown):
		dash_cooldown_timer += delta;
		if (dash_cooldown_timer >= dash_cooldown):
			dash_on_cooldown = false;
			dash_cooldown_timer = 0;
	# handle move_state
	if move_state == MoveState.Loading:
		pass
		# Idk dude, thought it might be a fun effect when you take damage
	elif Input.is_action_pressed("dash") or action_state == MoveState.Dashing:
		move_state = MoveState.Dashing;
		dash(delta);
	else:
		velocity = move_direction.normalize() * speed;
		if velocity.x || velocity.y:
			move_state = MoveState.Moving;
		else:
			move_state = MoveState.Still;
	
	# Handle action_state
	if Input.is_action_pressed("deploy"):
		action_state = ActionState.Deploying;
		# Deploy
		
	elif Input.is_action_pressed("fire"):
		action_state = ActionState.Firing;
		# Fire
		
	elif Input.is_action_pressed("charge"):
		action_state = ActionState.Charging;
		charge();