class_name TableCamera
extends Camera3D

## TableCamera - Isometric camera for the game table

# Camera settings
@export var camera_distance: float = 17.0
@export var camera_angle: float = 55.0  # Degrees from horizontal (higher = more top-down)
@export var camera_height_offset: float = -4.0  # Offset to look slightly above center

# Smooth movement
@export var smooth_speed: float = 3.0
var target_position: Vector3 = Vector3.ZERO
var target_look_at: Vector3 = Vector3.ZERO
var is_animating: bool = false

# Current player side (0 = positive Z, 1 = negative Z)
var current_player: int = 0

func _ready() -> void:
	_setup_for_player(0, false)

func _setup_for_player(player_index: int, animate: bool = true) -> void:
	# Set perspective projection
	projection = PROJECTION_PERSPECTIVE
	fov = 50.0

	current_player = player_index

	var angle_rad = deg_to_rad(camera_angle)
	var height = camera_distance * sin(angle_rad)
	var z_offset = camera_distance * cos(angle_rad)

	# Flip Z direction based on player
	var side = 1 if player_index == 0 else -1
	var new_position = Vector3(0, height, z_offset * side)

	target_look_at = Vector3(0, camera_height_offset, 0)

	if animate:
		target_position = new_position
		is_animating = true
	else:
		position = new_position
		target_position = new_position
		look_at(target_look_at, Vector3.UP)
		is_animating = false

func _process(delta: float) -> void:
	if is_animating:
		position = position.lerp(target_position, smooth_speed * delta)
		look_at(target_look_at, Vector3.UP)

		if position.distance_to(target_position) < 0.05:
			position = target_position
			look_at(target_look_at, Vector3.UP)
			is_animating = false

## Switch camera to view from a player's perspective
func switch_to_player(player_index: int) -> void:
	if player_index != current_player:
		_setup_for_player(player_index, true)

## Set camera to look at a specific point
func focus_on(point: Vector3) -> void:
	var angle_rad = deg_to_rad(camera_angle)
	var side = 1 if current_player == 0 else -1
	target_position = point + Vector3(0, camera_distance * sin(angle_rad),
		camera_distance * cos(angle_rad) * side)
	is_animating = true

## Reset to default position
func reset_position() -> void:
	_setup_for_player(current_player, false)