extends AnimatedSprite3D
class_name View

@onready var status = (%Status as Status)

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

class Trigger:
	var condition:StringName
	var from:StringName
	var to:StringName
	
var run_map = {}
var trans_list = []
var trigger_list = []
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)
	
	#受击
	trigger("any","hit1","trigger_hit")
	run("hit1","hit2_loop")
	trans("hit2_loop","hit3","is_stagger","=",false)
	run("hit3","idle_loop")

func _process(delta):
	if status.is_pause:return
	update_flip()
	update_trigger()
	update_view()
	if status.is_free_control:
		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.from = from
	newTrans.to = to
	trans_list.append(newTrans) 

func trigger(from:StringName,to:StringName,condition):
	var newTrigger = Trans.new()
	newTrigger.condition = condition
	newTrigger.from = from
	newTrigger.to = to
	trigger_list.append(newTrigger)

func update_trigger():
	for trigger in trigger_list:
		if trigger.from == "any" or trigger.from == animation:
			if status.get(trigger.condition):
				status.set(trigger.condition,false)
				play(trigger.to)
				
func update_view():
	#view位置
	position = status.basic_offset + status.shake_offset
	
func update_trans():
	for trans in trans_list:
		if trans.from == "any" or trans.from == 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)