added the game

Scripts/Classes/States/StateMachine.gd

@@ -0,0 +1,17 @@
+class_name StateMachine
+extends Node
+
+@export var state: State = null
+
+func transition_to(state_name := "", state_msg := {}) -> void:
+	state.exit()
+	state.state_exited.emit()
+	state = get_node(state_name)
+	state.enter(state_msg)
+	state.state_entered.emit()
+
+func _physics_process(delta: float) -> void:
+	state.physics_update(delta)
+
+func _process(delta: float) -> void:
+	state.update(delta)