extends AnimatedSprite3D
class_name View

@onready var status = (%Status as Status)

class Trans:
	var condition:StringName
	var compareType:String
	var conditionValue
	var to:StringName

class Trigger:
	var condition:StringName
	var to:StringName
	
var run_map = {}
var trans_map = {}
var trigger_map = {}
var move_sprite_frames:SpriteFrames

func _ready():
	# 地面行走
	trans("idle_loop","run1","speed_xz",">",1)
	run("run1","run2_loop")
	trans("run1","run3","speed_xz","<",1)
	trans("run2_loop","run3","speed_xz","<",1)
	run("run3","idle_loop")
	trans("run3","run1","speed_xz",">",1)
	
	# 跳跃
	trigger("any","jump1","trigger_jump")
	run("jump1","jump2_loop")
	trans("jump2_loop","jump3","speed_y","<",0)
	run("jump3","jump4_loop")
	trans("jump4_loop","jump5","is_on_floor","=",true)
	run("jump5","idle_loop")
	trans("jump5","run1","speed_xz",">",1)
	

func _process(delta):
	update_flip()
	if status.is_free_control:
		update_trigger()
		update_trans()

func init(default:SpriteFrames):
	sprite_frames = default
	move_sprite_frames = default
	play("idle_loop")

func reset():
	sprite_frames = move_sprite_frames
	play("idle_loop")

func run(from:StringName,to:StringName):
	run_map[from] = to
		
func trans(from:StringName,to:StringName,condition,compareType,conditionValue):
	var newTrans = Trans.new()
	newTrans.condition = condition
	newTrans.compareType = compareType
	newTrans.conditionValue = conditionValue
	newTrans.to = to
	trans_map[from] = newTrans

func trigger(from:StringName,to:StringName,condition):
	var newTrigger = Trans.new()
	newTrigger.condition = condition
	newTrigger.to = to
	trigger_map[from] = newTrigger

func update_trigger():
	for animation in trigger_map:
		var trigger = trigger_map[animation]
		var triggerValue = status.get(trigger.condition)
		if triggerValue:
			status.set(trigger.condition,false)
			play(trigger.to)
		
func update_trans():
	if animation in trans_map:
		var trans = trans_map[animation]
		var conditionValue = status.get(trans.condition)
		match trans.compareType:
			">":if conditionValue <= trans.conditionValue:return
			"<":if conditionValue >= trans.conditionValue:return
			"=":if conditionValue != trans.conditionValue:return
		play(trans.to)

func update_flip():
	scale.x = 1 if status.is_right else -1

func _on_animation_finished():
	if animation in run_map:
		var run = run_map[animation]
		play(run)