weapon system rework

scripts/weapon_system/gun/semi_auto_shoot_state.gd

@@ -0,0 +1,39 @@
+extends WeaponState
+
+@export var raycast: RayCast3D
+@export var emptyable: bool
+@export var damage: int
+
+@export var fire_timer: Timer
+
+func enter() -> void:
+	fire()
+	machine.animation_player.animation_finished.connect(on_animation_finished)
+
+func exit() -> void:
+	machine.animation_player.animation_finished.disconnect(on_animation_finished)
+
+func on_animation_finished(animation):
+	if animation == with_morphems("shoot"):
+		transition.emit("Idle")
+
+func use_begin() -> void:
+	if fire_timer.time_left > 0:
+		return
+	fire()
+
+func fire() -> void:
+	if machine.ammo == 0 or fire_timer.time_left > 0:
+		return
+	machine.ammo -= 1
+	
+	machine.animation_player.stop()
+	machine.animation_player.play(with_morphems("shoot"))
+	
+	if raycast.is_colliding():
+		raycast.get_collider().hp -= damage
+	
+	fire_timer.start()
+
+func with_morphems(animation):
+	return machine.animation_prefix + (animation+"_empty") if emptyable and machine.ammo == 0 else animation