Send information from one player to another. Unity Multiplayer

Question

I have a player log in with credentials (user name and password), then once they are successfully logged in, other information fields on a script on their player object are filled by my database. I have made it so that if I click on a player a player information box pops up on my screen. I know how to fill the text boxes on the pop up, but how do I fill it with their information? I tried to use RPCs but that didn't work and I am fairly sure they are depreciated now...

Please help.

Answer 1

Answer by meat5000 · Oct 22, 2015 at 09:36 AM

Came across t$$anonymous$$s info

http://docs.unity3d.com/Manual/UNetMessages.html

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thornekey · Oct 22, 2015 at 10:23 AM 0

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hi @meat5000, thanks! I was actually just reading up on that too! For your research (aswell) another interesting attribute is: http://docs.unity3d.com/ScriptReference/Networking.SyncVarAttribute.html

meat5000 ♦ thornekey · Oct 22, 2015 at 11:57 AM 0

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SyncVar is mega useful. Its what is used to communicate data between players, such as position and rotation of player characters.

In uJS you use @SyncVar

UNet Tutorials

Answer 2

Answer by Addyarb · Oct 19, 2015 at 08:28 AM

If the information is stored on a component of the player, you can just use a raycasting setup to get that player's collider. So here's how it works in English:

Player A clicks on $$anonymous$$s screen w$$anonymous$$le $$anonymous$$s mouse is over Player B.

Player A fires a ray via script at Player B.

Player A's ray $$anonymous$$ts Player B with said ray, and $$anonymous$$s [Player A] script returns Player B's collider.

Player A's script converts the returned collider to the collider's gameObject, and then to a component.

Player A gets the component "TheOtherPlayerScript" and then accesses a public variable to populate text objects.

And in script....

 void Update () {
             GetSelection();
         }
         
         void GetSelection() {
             // Use Input.GetKeyDown() for single clicks
             if(Input.GetKeyDown(KeyCode.Mouse0)) 
             {
             Ray ray;
             RaycastHit $$anonymous$$t;
                 // Reset ray with new mouse position
                 ray = Camera.main.ScreenPointToRay(Input.mousePosition); 
                 if(Physics.Raycast(ray, out $$anonymous$$t)) {
                 TheOtherPlayerScript script = $$anonymous$$t.collider.gameObject.GetComponent<TheOtherPlayerScript>();
                 //Access the public variables from here and you're all set.
                 }
             }
         }

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Addyarb · Oct 19, 2015 at 10:25 AM 0

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Oh okay, well it's a pretty basic thing to access a public variable of another script - but maybe not so much with GUI.

So on line 15, we declared the script on the player we just hit as a temporary variable "script."

So lets say we have a text component that displays that player's name and health.

After line 15 we would write:

(and please replace these string references ASAP)

 Text enemyNameDisplay = GameObject.Find("EnemyNameDisplay").GetComponent<Text>();
 enemyNameDisplay.text = script.name; //Name is the public variable
 
 float enemyHealthImage = GameObject.Find("EnemyHealthImage").GetComponent<Image>();
 enemyHealthImage.fillAmount = script.health/100;

thornekey Addyarb · Oct 19, 2015 at 11:10 AM 0

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@addyarb yes this just got the local player's info.. not the networked players info. It seems that when a new player connects his info is lost and he takes the local players info or null everything.... how do i make it get the other player?

meat5000 ♦ thornekey · Oct 21, 2015 at 09:20 AM 0

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Place a Cmd function in the script that fires off the players actual info from his system rather than reading the local info that appears on your own machine.

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Send information from one player to another. Unity Multiplayer

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