add client prediction

scripts/states/fall.gd

@@ -1,7 +1,7 @@
 extends State
 
 func process_physics(delta: float) -> State:
-	if not multiplayer.is_server():
+	if not multiplayer.is_server() and (multiplayer.get_unique_id() != subject.player_id or not subject.client_prediction):
 		return
 
 	var target_velocity = Vector3(0, subject.velocity.y, 0)

scripts/states/idle.gd

@@ -1,7 +1,7 @@
 extends State
 
 func process_physics(delta: float) -> State:
-	if not multiplayer.is_server():
+	if not multiplayer.is_server() and (multiplayer.get_unique_id() != subject.player_id or not subject.client_prediction):
 		return
 
 	var target_velocity = Vector3(0, subject.velocity.y, 0)

scripts/states/run.gd

@@ -1,7 +1,7 @@
 extends State
 
 func process_physics(delta: float) -> State:
-	if not multiplayer.is_server():
+	if not multiplayer.is_server() and (multiplayer.get_unique_id() != subject.player_id or not subject.client_prediction):
 		return
 
 	var input_direction = %Input.direction

scripts/states/state_machine.gd

@@ -14,7 +14,7 @@ func _change_state(new_state: State) -> void:
 		current_state.exit()
 
 	current_state = new_state
-	print("Entering: %s" % current_state.name)
+	#print("Entering: %s" % current_state.name)
 	current_state.enter()
 
 func process_physics(delta: float) -> void:

scripts/states/walk.gd

@@ -1,7 +1,7 @@
 extends State
 
 func process_physics(delta: float) -> State:
-	if not multiplayer.is_server():
+	if not multiplayer.is_server() and (multiplayer.get_unique_id() != subject.player_id or not subject.client_prediction):
 		return
 
 	var input_direction = %Input.direction