class_name ToolMount extends Node3D
## Access controller for the player's active & available tools

@export var initial_tool: Tool

var _active: Tool


func _ready() -> void:
	set_active(initial_tool)


## Returns the currently-active tool.
func get_active() -> Tool:
	return _active


## Sets the given tool as active.
##
## The tool should be a child of this mount.
## If the tool is not unlocked and `force` is false, this will have no effect.
func set_active(tool: Tool, force: bool = false) -> void:
	if not force and not tool.unlocked():
		return

	for c: Node3D in get_children():
		c.visible = false
		# TODO unequip animation?
	_active = tool
	_active.visible = true
	_active.on_equip()
	# TODO equip animation?


## Sets the active tool by index relative to the currently-active tool.
##
## Use this for "select next/prev tool" functions.
func set_active_relative(delta: int) -> void:
	var active_idx := _active.get_index()
	while true:
		var new_idx := wrapi(active_idx + delta, 0, get_child_count())
		var tool := get_child(new_idx) as Tool
		if tool.unlocked():
			set_active(tool)
			return
		# If the next tool is not unlocked, try the one after
		# NOTE: this will loop forever if the player has no tools unlocked!
		active_idx = new_idx