TerraVol + Photon Networking

An article by mgear    8 Comments

Had to test it, how it would work if connect TerraVol with Photon.. Surprisingly it only took few clicks!

Webplayer demo:
coming later

Notes

–    Import/Open TerraVol project (needs to be purchased from assetstore)
–    Import Photon networking http://u3d.as/content/exit-games/photon-unity-networking-free/2ey
–    Setup photon (follow instructions, mainly just enter your appId and press save..)
–    Open scene “DemoWorker-Scene” (it has lobby system)
–    From build settings remove everything
–    Add that “DemoWorker-Scene” scene to build settings as scene 0
–    Open scene “random_generate_scene”
–    Save as new scene “scene_multiplayer” and add it to build settings as scene 1
–    In the scene “DemoWorker-Scene” select Scripts object from Hierarchy
–    Open Worker Menu script
–    Change line:

public static readonly string SceneNameGame = "DemoWorkerGame-Scene";

–    into:

public static readonly string SceneNameGame = "scene_multiplayer";

–    Quick test: Press Play (lobby should appear, press Create, Terravol scene should be loaded”
–    Open “DemoWorkerGame-Scene”
–    Copy “Main Camera”, “GuiText: Demo Worker”, “Scripts” from Hierarchy
–    Open “scene_multiplayer” and paste those objects there
–    Disable old “Main camera” (it has the character controller and stuff)
–    Select scripts object, rename it as “PhotonScripts”
–    Set “PhotonScripts “ Y position to 120 (player is instantiated at this position when connected)
–    In build settings, switch to Webplayer platform
–    Player settings, enable: [x] Run in background
–    Build & Run
–    Webplayer starts, Lobby: Create Room
–    Press play in editor, Lobby: Join room
–    Yay! 2 players in terravol scene..but the terrains are randomly generated..
–    Not sure if there is some fixed seed option in TerraVol yet.. so:
–    Open “TerraMap” script
–    Find:

tmg.randomize = true;

–    Replace with:

tmg.randomize = false;

–    Seems to work, same level on both.
–    From the old Main Camera, copy Builder script component to the new Main Camera
–    Can dig the terrain (although it happens under the player?) and its not synced..
–    Add PhotonView component to MainCamera (View id seems to be 2)
–    Open the “Builder” script

–    Find line:

DoAction( hit );

–    Replace with:

if (hit!=null)
{
PhotonView photonView = PhotonView.Get(this);
photonView.RPC("DoAction", PhotonTargets.All, hit.Value.x,hit.Value.y,hit.Value.z);
}

–    Find line:

public void DoAction (Vector3? point)

–    Replace with:

[RPC]
public void DoAction (float hx, float hy, float hz)
{
Vector3? point = new Vector3(hx,hy,hz);

– Had to do that with 3 floats, Vector3 or Vector3? was giving some errors when used as rpc parameter.
–    What is that “?” http://stackoverflow.com/questions/2326158/why-is-there-a-questionmark-on-the-private-variable-definition
–    Check also Photon RPC: http://doc.exitgames.com/en/photon-realtime/PhotonUnityNetworkingIntro#_rpcpun
–    Build, Run, Create..
–    Editor, Hit Play, Join, Modify terrain!
–    It works!!1

TODO:
–    Use original FPS/Character controller
–    Then that should fix the mousehit point also (currently digging happens around the player..)
–    What happens when another player is in a different chunk..
–    Explosions, Cannons, Meteorites..or not.

*******************************************************

Part2 (use terravol original character controller)

–          Rename the new Main Camera as “Main Camera Photon”
–          Then disable it
–          Rename the old Main Camera as “Main Camera TerraVol”
–          Then enable it
–          Drag & Drop Photon View component from the “Main Camera Photon” into “Main Camera TerraVol” (You could just remove it from the old and add to the new manually also)
–          Create new folder in Project window “Resources”
–          Create prefab from “Main Camera TerraVol” by dragging it from Hierarchy window into that “Resources” folder in Project window
–          In “PhotonScripts” gameobject, assign that  new prefab into Player Prefab field
–          In Map gameobject, assign that  new prefab into Player Camera  field (*this could be bad, since its referencing the prefab..not scene object?)
–          Build & Run, test in editor, Seems to work! Just sometimes its digging in wrong direction?