✨ Adds FMS script, implemented in a new player node

nodes/player/player.gd

@@ -0,0 +1,65 @@
+extends CharacterBody2D
+
+
+const SPEED = 300.0
+const JUMP_VELOCITY = -400.0
+
+const STATES= [
+	"spawn",
+	"idle",
+	"walk",
+	"jump",
+	"die"
+	]
+
+# Get the gravity from the project settings to be synced with RigidBody nodes.
+var gravity = ProjectSettings.get_setting("physics/2d/default_gravity")
+
+func _ready():
+	$fsm.set_states(STATES)
+
+func _enter_spawn():
+	$fsm.set_next_state("idle")
+
+func on_enter_idle_state():
+	velocity.x = 0.0
+
+func idle_state(_delta):
+	var direction = Input.get_axis("ui_left", "ui_right")
+
+	if direction:
+		$fsm.set_next_state("walk")
+	elif Input.is_action_just_pressed("ui_accept") and is_on_floor():
+		$fsm.set_next_state("jump")
+
+func walk_state(_delta):
+	var direction = Input.get_axis("ui_left", "ui_right")
+
+	if direction:
+		velocity.x = direction * SPEED
+	else:
+		$fsm.set_next_state("idle")
+
+	if Input.is_action_just_pressed("ui_accept") and is_on_floor():
+		$fsm.set_next_state("jump")
+
+func on_enter_jump_state():
+	velocity.y = JUMP_VELOCITY
+
+func jump_state(_delta):
+	var direction = Input.get_axis("ui_left", "ui_right")
+
+	velocity.x = move_toward(velocity.x, direction * SPEED, SPEED)
+
+	if is_on_floor():
+		if direction:
+			$fsm.set_next_state("walk")
+		else:
+			$fsm.set_next_state("idle")
+
+func after_state(delta):
+	if $fsm.current_state in ["idle", "walk"]:
+		move_and_slide()
+
+	if not is_on_floor():
+		velocity.y += gravity * delta

nodes/player/player.tscn

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+[gd_scene load_steps=5 format=3 uid="uid://c5rmt3jeffjx7"]
+
+[ext_resource type="Script" path="res://nodes/player/player.gd" id="1_exx2i"]
+[ext_resource type="Texture2D" uid="uid://cm4rn4vgyjd1b" path="res://nodes/player/temp.png" id="1_s33dc"]
+[ext_resource type="Script" path="res://scripts/ia/fsm.gd" id="2_ix1o4"]
+
+[sub_resource type="CapsuleShape2D" id="CapsuleShape2D_w17ly"]
+radius = 7.9984
+height = 31.9936
+
+[node name="player" type="CharacterBody2D"]
+script = ExtResource("1_exx2i")
+
+[node name="fsm" type="Node2D" parent="." node_paths=PackedStringArray("root")]
+script = ExtResource("2_ix1o4")
+root = NodePath("..")
+
+[node name="sprite" type="Sprite2D" parent="."]
+texture = ExtResource("1_s33dc")
+
+[node name="shape" type="CollisionShape2D" parent="."]
+rotation = 1.55081
+shape = SubResource("CapsuleShape2D_w17ly")
+metadata/_edit_group_ = true
+
+[node name="camera" type="Camera2D" parent="."]
+zoom = Vector2(2, 2)

nodes/player/temp.png.import

@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://cm4rn4vgyjd1b"
+path="res://.godot/imported/temp.png-1af0064fad142262002520a17592c851.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://nodes/player/temp.png"
+dest_files=["res://.godot/imported/temp.png-1af0064fad142262002520a17592c851.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1

scripts/ia/fsm.gd

@@ -0,0 +1,49 @@
+extends Node2D
+
+class_name FSM
+
+@export var root : Node
+
+var states = ['idle']
+var current_state = null
+var previous_state = null
+var next_state = null
+
+func set_states(new_states):
+	self.states = new_states
+
+func _ready():
+	if current_state == null:
+		next_state = states[0]
+
+	_transition()
+
+func _physics_process(delta):
+	if "before_state" in root:
+		root.call("before_state", delta)
+
+	var current_state_method = current_state + "_state"
+	if current_state_method in root:
+		root.call(current_state_method, delta)
+
+	if "after_state" in root:
+		root.call("after_state", delta)
+
+	_transition()
+
+func _transition():
+	if next_state != null:
+		previous_state = current_state
+		current_state = next_state
+		next_state = null
+
+		var on_exit_state_method =  "on_exit_" + current_state + "_state"
+		if on_exit_state_method in root:
+			root.call(on_exit_state_method)
+
+		var on_enter_state_method =  "on_enter_" + current_state + "_state"
+		if on_enter_state_method in root:
+			root.call(on_enter_state_method)
+
+func set_next_state(state):
+	next_state = state