# Automatically Generated From Builtin CharacterBody Template

extends CharacterBody3D
class_name Player

@export var SPEED = 5.0
@export var JUMP_VELOCITY = 4.5
var username: String = ""

var gravity = ProjectSettings.get_setting("physics/3d/default_gravity")

# Set by camera child, switch to signals if becomes too spaghetti
var movement_dir: Vector2 = Vector2.ZERO


# Signals fire continously every frame they're true
signal tag(player: Player)
signal ground(v: bool)

func _process(_delta):
	ground.emit(is_on_ground())
	var player := get_first_tagging()
	if player != null:
		print("tag")
		tag.emit(player)

# Signals being abused as weak hashsets
# Never emit
signal player_tagging_hashset
signal ground_touching_hashset

func _ready():
	if username == "":
		username = "Player " + name
	$Sphere.set_instance_shader_parameter("color", Color.DARK_ORANGE)

func is_on_ground() -> bool:
	return player_tagging_hashset.get_connections().size() > 0
	

func _physics_process(delta):
	if not is_on_floor():
		velocity.y -= gravity * delta

	if Input.is_action_just_pressed("ui_accept") and is_on_floor():
		velocity.y = JUMP_VELOCITY

	if movement_dir:
		velocity.x = movement_dir.x * SPEED
		velocity.z = movement_dir.y * SPEED
	else:
		velocity.x = move_toward(velocity.x, 0, SPEED)
		velocity.z = move_toward(velocity.z, 0, SPEED)

	move_and_slide()

func id():
	return self

func get_first_tagging() -> Player:
	var connections := player_tagging_hashset.get_connections()
	if connections.size() == 0:
		return null
	return connections[0]["callable"].call()

func _on_tag_detection_area_entered(area):
	if not (area.get_parent() is Player) or area.get_parent() == self:
		return
	var other_player: Player = area.get_parent()
	if player_tagging_hashset.is_connected(other_player.id):
		return
	player_tagging_hashset.connect(other_player.id)
	
func _on_tag_detection_area_exited(area):
	if not (area.get_parent() is Player) or area.get_parent() == self:
		return
	var other_player: Player = area.get_parent()
	if not player_tagging_hashset.is_connected(other_player.id):
		return
	player_tagging_hashset.disconnect(other_player.id)


func _on_ground_detection_node_entered(node: Node):
	if node.is_in_group("ground"):
		if not ground_touching_hashset.is_connected(node.get_tree):
			ground_touching_hashset.connect(node.get_tree)


func _on_ground_detection_node_exited(node: Node):
	if node.is_in_group("ground"):
		if ground_touching_hashset.is_connected(node.get_tree):
			ground_touching_hashset.disconnect(node.get_tree)