109 lines
3.5 KiB
C#
109 lines
3.5 KiB
C#
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using DarkRift;
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using DarkRift.Client;
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using DarkRift.Client.Unity;
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using UnityEngine;
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public class DragObject : MonoBehaviour
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{
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/// <summary>
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/// The tag indicating a movement of the object.
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/// </summary>
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const ushort MOVE_TAG = 0;
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[SerializeField]
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[Tooltip("The client to communicate with the server via.")]
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UnityClient client;
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[SerializeField]
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[Tooltip("The ID to identify this object across the network using")]
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byte dragID;
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[SerializeField]
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[Tooltip("The speed at which the object will drag at.")]
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float speed = 15;
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/// <summary>
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/// This will be an object used to smoothly move between positions.
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/// </summary>
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Vector3 targetPosition;
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void Awake ()
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{
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//Check we have a client to send/receive from
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if (client == null)
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{
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Debug.LogError("No client assigned to DragObject!");
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return;
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}
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//Subscribe to the event for when we receive messages
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client.MessageReceived += Client_MessageReceived;
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//Set our default target position to our current position
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targetPosition = transform.position;
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}
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void Update()
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{
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//Lerp between positions to create a smoother transition
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transform.position = Vector3.Lerp(transform.position, targetPosition, Time.deltaTime * speed);
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}
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void Client_MessageReceived(object sender, MessageReceivedEventArgs e)
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{
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using (Message message = e.GetMessage() as Message)
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{
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//Check the message has a zero tag
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if (message.Tag == MOVE_TAG)
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{
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//Get the reader from the message so we can read the data
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using (DarkRiftReader reader = message.GetReader())
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{
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//If it's for us...
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if (reader.ReadByte() == dragID)
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{
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//... then update our position!
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targetPosition = new Vector3(reader.ReadSingle(), reader.ReadSingle(), 0);
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}
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}
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}
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}
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}
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//Called when the object is dragged by the mouse
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void OnMouseDrag ()
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{
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//Check we have a client to send from
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if (client == null)
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{
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Debug.LogError("No client assigned to DragObject!");
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return;
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}
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//Firstly we need to work out where the object should be, we can ignore the z-coord returned
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Vector3 newPos = Camera.main.ScreenPointToRay(Input.mousePosition).GetPoint(10);
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//We want to send the new position of the object to the other clients so we write our ID and
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//our position (as x, y and z components) into a DarkRiftWriter
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using (DarkRiftWriter writer = DarkRiftWriter.Create())
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{
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writer.Write(dragID);
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writer.Write(newPos.x);
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writer.Write(newPos.y);
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//Then we'll create a new message and put the DarkRiftWriter into it.
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//The tag indicates what the message is about so we'll put a tag of '0' to indicate a
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//movement.
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using (Message message = Message.Create(MOVE_TAG, writer))
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{
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//We can then send the message
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client.SendMessage(message, SendMode.Unreliable);
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}
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}
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//Last but not least we'll actually move the object on our screen so set the target position to
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//the new position
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targetPosition = new Vector3(newPos.x, newPos.y, 0);
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}
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}
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