Fix multiplayer presentation and Fishnet synchronization

tests/network_player_animation_protocol_validation.gd

@@ -0,0 +1,49 @@
+extends SceneTree
+
+
+func _initialize() -> void:
+	var idle := NetworkPlayerAnimationProtocol.make_state(
+		NetworkPlayerAnimationProtocol.LOCOMOTION_IDLE,
+		true,
+	)
+	assert(NetworkPlayerAnimationProtocol.validate_state(idle))
+	var emote := NetworkPlayerAnimationProtocol.make_state(
+		NetworkPlayerAnimationProtocol.LOCOMOTION_RUNNING,
+		false,
+		&"wave_hello",
+		17,
+		1.25,
+	)
+	assert(NetworkPlayerAnimationProtocol.validate_state(emote))
+	var future_locomotion := NetworkPlayerAnimationProtocol.make_state(
+		&"swimming_fast",
+		false,
+	)
+	assert(NetworkPlayerAnimationProtocol.validate_state(future_locomotion))
+	var extra_future_field: Dictionary = emote.duplicate(true)
+	extra_future_field["future_layer"] = {"id": "umbrella"}
+	assert(NetworkPlayerAnimationProtocol.validate_state(extra_future_field))
+
+	var invalid_action: Dictionary = emote.duplicate(true)
+	invalid_action["action"] = {
+		"id": "../unsafe",
+		"sequence": 17,
+		"elapsed": 1.25,
+	}
+	assert(not NetworkPlayerAnimationProtocol.validate_state(invalid_action))
+	var invalid_sequence: Dictionary = emote.duplicate(true)
+	invalid_sequence["action"] = {
+		"id": "wave_hello",
+		"sequence": -1,
+		"elapsed": 1.25,
+	}
+	assert(not NetworkPlayerAnimationProtocol.validate_state(invalid_sequence))
+	var invalid_elapsed: Dictionary = emote.duplicate(true)
+	invalid_elapsed["action"] = {
+		"id": "wave_hello",
+		"sequence": 17,
+		"elapsed": INF,
+	}
+	assert(not NetworkPlayerAnimationProtocol.validate_state(invalid_elapsed))
+	print("Network player animation protocol validation: PASS")
+	quit()