implement idle and running states for players

scenes/player/player.gd

@@ -4,6 +4,7 @@ class_name Player extends CharacterBody2D
 @export var max_speed: float = 90
 
 @onready var sprite: AnimatedSprite2D = $AnimatedSprite2D
+@onready var state_machine: StateMachine = $StateMachine
 
 var is_hitting: bool = false
 var was_moving: bool = false
@@ -14,38 +15,6 @@ func _ready() -> void:
 	assert(id == 1 or id == 2, "id ("+str(id)+") is invalid")
 	anim_dir = 'up' if id == 1 else 'down'
 	def_dir = 'up' if id == 1 else 'down'
-	sprite.play(def_dir)
-	sprite.frame = 1
-	sprite.pause()
-
-func _physics_process(_delta: float) -> void:
-	var movement_vector: Vector2 = get_movement_vector()
-	var direction: Vector2 = movement_vector.normalized() if not is_hitting else Vector2.ZERO
-	velocity = direction * max_speed
-	
-	move_and_slide()
-	
-	var is_moving: bool = velocity.length() > 10
-	
-	if Input.is_action_pressed("hit_left") and not is_hitting:
-		hit("left")
-	elif Input.is_action_pressed("hit_right") and not is_hitting:
-		hit("right")
-	
-	if is_moving and not is_hitting:
-		if abs(velocity.x) > abs(velocity.y):
-			anim_dir = 'right' if velocity.x > 0 else 'left'
-		else:
-			anim_dir = 'down' if velocity.y > 0 else 'up'
-		
-		sprite.play(anim_dir)
-	else:
-		if was_moving and not is_hitting:
-			sprite.play(def_dir)
-			sprite.frame = 1
-			sprite.pause()
-	
-	was_moving = is_moving
 
 func get_movement_vector() -> Vector2:
 	var x_mov: float = Input.get_action_strength('move_right') - Input.get_action_strength('move_left')

scenes/player/player.tscn

@@ -1,7 +1,11 @@
-[gd_scene load_steps=17 format=3 uid="uid://642nm6c4mpxx"]
+[gd_scene load_steps=21 format=3 uid="uid://642nm6c4mpxx"]
 
 [ext_resource type="Script" uid="uid://rdqmsvofiots" path="res://scenes/player/player.gd" id="1_v6fml"]
 [ext_resource type="Texture2D" uid="uid://b8ptokcqwpdud" path="res://scenes/player/saffron.png" id="2_3li8b"]
+[ext_resource type="Script" uid="uid://dqjaxgmyxq3rx" path="res://scenes/classes/state_machine.gd" id="3_lvxji"]
+[ext_resource type="Script" uid="uid://delyni51vg6us" path="res://scenes/player/states/idle.gd" id="4_75vfm"]
+[ext_resource type="Script" uid="uid://b2sr7p80gdjii" path="res://scenes/classes/player_state.gd" id="4_p47bc"]
+[ext_resource type="Script" uid="uid://dxfs1b8fuk7kv" path="res://scenes/player/states/running.gd" id="5_75vfm"]
 
 [sub_resource type="AtlasTexture" id="AtlasTexture_g2els"]
 atlas = ExtResource("2_3li8b")
@@ -141,3 +145,20 @@ offset = Vector2(0, -16)
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
 position = Vector2(0, -8)
 shape = SubResource("CapsuleShape2D_oprun")
+
+[node name="StateMachine" type="Node" parent="." node_paths=PackedStringArray("initial_state")]
+script = ExtResource("3_lvxji")
+initial_state = NodePath("Idle")
+metadata/_custom_type_script = "uid://dqjaxgmyxq3rx"
+
+[node name="Idle" type="Node" parent="StateMachine"]
+script = ExtResource("4_75vfm")
+metadata/_custom_type_script = "uid://b2sr7p80gdjii"
+
+[node name="Running" type="Node" parent="StateMachine"]
+script = ExtResource("5_75vfm")
+metadata/_custom_type_script = "uid://b2sr7p80gdjii"
+
+[node name="Hitting" type="Node" parent="StateMachine"]
+script = ExtResource("4_p47bc")
+metadata/_custom_type_script = "uid://b2sr7p80gdjii"

scenes/player/states/idle.gd

@@ -0,0 +1,27 @@
+extends PlayerState
+
+
+func _enter(_previous_state_path: String, _data: Dictionary = {}) -> void:
+	print("entering idle")
+	player.velocity = Vector2.ZERO
+	player.move_and_slide()
+	
+	player.sprite.play(player.def_dir)
+	player.sprite.frame = 1
+	player.sprite.pause()
+	
+	print("entered")
+
+
+func _state_physics_update(_delta: float) -> void:
+	var movement_vector: Vector2 = player.get_movement_vector()
+	
+	if movement_vector.length() >= 1:
+		finished.emit(RUNNING)
+		return
+	elif Input.is_action_pressed("hit_left"):
+		finished.emit(HITTING, {hit_dir = "left"})
+		return
+	elif Input.is_action_pressed("hit_right"):
+		finished.emit(HITTING, {hit_dir = "right"})
+		return

scenes/player/states/idle.gd.uid

@@ -0,0 +1 @@
+uid://delyni51vg6us

scenes/player/states/running.gd

@@ -0,0 +1,37 @@
+extends PlayerState
+
+
+func _enter(_previous_state_path: String, _data: Dictionary = {}) -> void:
+	print("entering running")
+	player.move_and_slide()
+
+
+func _state_physics_update(_delta: float) -> void:
+	var movement_vector: Vector2 = player.get_movement_vector()
+	var direction: Vector2 = movement_vector.normalized()
+	player.velocity = direction * player.max_speed
+	
+	player.move_and_slide()
+	
+	if movement_vector.length() == 0:
+		finished.emit(IDLE)
+		return
+	elif Input.is_action_just_pressed("hit_left"):
+		finished.emit(HITTING, {hit_dir = "left"})
+		return
+	elif Input.is_action_just_pressed("hit_right"):
+		finished.emit(HITTING, {hit_dir = "right"})
+		return
+	
+	if abs(player.velocity.x) > abs(player.velocity.y):
+		player.anim_dir = 'right' if player.velocity.x > 0 else 'left'
+	else:
+		player.anim_dir = 'down' if player.velocity.y > 0 else 'up'
+	
+	player.sprite.play(player.anim_dir)
+	
+	print("physupdate")
+
+func _exit() -> void:
+	player.sprite.stop()
+	print("exit")

scenes/player/states/running.gd.uid

@@ -0,0 +1 @@
+uid://dxfs1b8fuk7kv