extends CharacterBody2D

const SPEED = 200.0
const STAMINA_DRAIN = 5.0
const STAMINA_REGEN = 3.0

var stats = {
	"health": 100,
	"stamina": 100,
	"hunger": 0,
	"thirst": 0,
	"mood": 100,
	"organs": {
		"heart": 100,
		"lungs": 100,
		"brain": 100,
		"cyber": 100
	}
}

var hud: CanvasLayer

func _ready() -> void:
	hud = get_tree().get_first_node_in_group("hud")
	if hud:
		hud.update_stats(stats)

func _physics_process(delta: float) -> void:
	var input_dir = Input.get_vector("move_left", "move_right", "move_up", "move_down")
	
	var moving = input_dir.length() > 0
	
	if moving and stats.stamina > 0:
		velocity = input_dir * SPEED
		stats.stamina = max(0, stats.stamina - STAMINA_DRAIN * delta)
	elif not moving:
		velocity.x = move_toward(velocity.x, 0, SPEED)
		velocity.y = move_toward(velocity.y, 0, SPEED)
		stats.stamina = min(100, stats.stamina + STAMINA_REGEN * delta)
	else:
		velocity.x = move_toward(velocity.x, 0, SPEED)
		velocity.y = move_toward(velocity.y, 0, SPEED)
	
	move_and_slide()
	
	if input_dir.length() > 0:
		rotation = input_dir.angle()
	
	if hud:
		hud.update_stats(stats)

func take_damage(amount: int) -> void:
	stats.health = max(0, stats.health - amount)

func heal(amount: int) -> void:
	stats.health = min(100, stats.health + amount)

func add_hunger(amount: int) -> void:
	stats.hunger = min(100, stats.hunger + amount)

func add_thirst(amount: int) -> void:
	stats.thirst = min(100, stats.thirst + amount)

func change_mood(amount: int) -> void:
	stats.mood = clamp(stats.mood + amount, 0, 100)