feat(game-over): add arena mode

Assets/Interface Assets/GameOver.uxml

@@ -0,0 +1,3 @@
+<ui:UXML xmlns:ui="UnityEngine.UIElements" xmlns:uie="UnityEditor.UIElements" xsi="http://www.w3.org/2001/XMLSchema-instance" engine="UnityEngine.UIElements" editor="UnityEditor.UIElements" noNamespaceSchemaLocation="../../UIElementsSchema/UIElements.xsd" editor-extension-mode="False">
+    <ui:Label text="GAME OVER" display-tooltip-when-elided="true" style="font-size: 64px; white-space: normal; height: 402px;" />
+</ui:UXML>

Assets/Scenes/Game.unity

@@ -38,7 +38,7 @@ RenderSettings:
   m_ReflectionIntensity: 1
   m_CustomReflection: {fileID: 0}
   m_Sun: {fileID: 705507994}
-  m_IndirectSpecularColor: {r: 0.18028326, g: 0.22571333, b: 0.30692202, a: 1}
+  m_IndirectSpecularColor: {r: 0.18028301, g: 0.22571309, b: 0.30692127, a: 1}
   m_UseRadianceAmbientProbe: 0
 --- !u!157 &3
 LightmapSettings:
@@ -207,6 +207,54 @@ Transform:
   m_Father: {fileID: 1637532756}
   m_RootOrder: 3
   m_LocalEulerAnglesHint: {x: 0, y: -135, z: 0}
+--- !u!1 &575161927
+GameObject:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  serializedVersion: 6
+  m_Component:
+  - component: {fileID: 575161928}
+  - component: {fileID: 575161929}
+  m_Layer: 5
+  m_Name: YouAreDead
+  m_TagString: Untagged
+  m_Icon: {fileID: 0}
+  m_NavMeshLayer: 0
+  m_StaticEditorFlags: 0
+  m_IsActive: 1
+--- !u!4 &575161928
+Transform:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 575161927}
+  m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
+  m_LocalPosition: {x: 0, y: 0, z: 0}
+  m_LocalScale: {x: 1, y: 1, z: 1}
+  m_ConstrainProportionsScale: 0
+  m_Children: []
+  m_Father: {fileID: 1395018204}
+  m_RootOrder: 3
+  m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!114 &575161929
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 575161927}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 19102, guid: 0000000000000000e000000000000000, type: 0}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  m_PanelSettings: {fileID: 11400000, guid: 5de7ff8d9b1f3415195a2e4429eb502c, type: 2}
+  m_ParentUI: {fileID: 0}
+  sourceAsset: {fileID: 9197481963319205126, guid: 027f1a2de6bbc4ecbafa99b6b0e54ead, type: 3}
+  m_SortingOrder: 0
 --- !u!1 &592038060
 GameObject:
   m_ObjectHideFlags: 0
@@ -785,6 +833,7 @@ Transform:
   - {fileID: 1522746831}
   - {fileID: 1895071184}
   - {fileID: 874665408}
+  - {fileID: 575161928}
   m_Father: {fileID: 0}
   m_RootOrder: 6
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}

Assets/Src/LobbyManager.cs

@@ -156,6 +156,24 @@ private void Update()
         {
             RefreshLobbyData();
         }
+
+        if (State == LobbyState.ClientInGame) {
+            // Load all players and figure our how many of them are alive
+            var players = gameObject.GetComponents<PlayerController>();
+            var aliveCount = 0;
+            foreach (var player in players)
+            {
+                if (!player.GetHealthSystem().IsDead()) {
+                    aliveCount++;
+                }
+            }
+
+            if (aliveCount <= 1) {
+                // Game over
+                Debug.Log("Game over");
+                CloseGame();
+            }
+        }
     }
 
     private void OnDestroy()

Assets/Src/PlayerController.cs

@@ -38,7 +38,6 @@ private void OnHealthChangeClient(float previousValue, float newValue)
 
     private void OnHealthChangeServer(object sender, EventArgs e)
     {
-
         if (IsServer)
         {
             health.Value = hs.GetHealth();
@@ -142,9 +141,8 @@ public void OnHitServer(float damage, ulong sourcePlayer)
             hs.Damage(damage);
             if (hs.IsDead())
             {
-                Debug.Log($"Thats it, Im dead :( killed by #{sourcePlayer}. I have died #{deaths} times.");
-                deaths++;
-                hs.SetHealth(maxHealth);
+                Debug.Log($"Thats it, Im dead :( killed by #{sourcePlayer}.");
+                networkObject.Despawn(true);
             }
         }
     }

Assets/Src/UI/LobbyUIController.cs

@@ -51,6 +51,7 @@ public class LobbyUIController : MonoBehaviour
     // in game view buttons
     private Button closeGameButton;
     private Button leaveGameButton;
+    private GameObject gameOverUI;
 
     // unity events
     private async void Awake()
@@ -123,6 +124,7 @@ private void SetupInGameViewReferences()
         // in game view buttons
         closeGameButton = inGameDocument.rootVisualElement.Q("close-game") as Button;
         leaveGameButton = inGameDocument.rootVisualElement.Q("leave-game") as Button;
+        gameOverUI = GameObject.Find("GameOver");
     }
 
     public string GetPlayerName()