From 4099e2908fee42d9bf734fdb30e43672aabd5f41 Mon Sep 17 00:00:00 2001
From: Antoine H <antoine.harle@etu.upmc.fr>
Date: Mon, 14 Dec 2020 16:23:54 +0100
Subject: [PATCH] =?UTF-8?q?GameSystem=20en=20Singleton=20+=20d=C3=A9but=20?=
 =?UTF-8?q?timer=20service=20+=20Slow-mode?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Assets/Scripts/GameSystem.cs              | 107 ++++++++++++++++++++++
 Assets/Scripts/GameSystem.cs.meta         |  11 +++
 Assets/Scripts/Tavernkeeper_controller.cs |   3 +-
 3 files changed, 120 insertions(+), 1 deletion(-)
 create mode 100644 Assets/Scripts/GameSystem.cs
 create mode 100644 Assets/Scripts/GameSystem.cs.meta

diff --git a/Assets/Scripts/GameSystem.cs b/Assets/Scripts/GameSystem.cs
new file mode 100644
index 0000000..a3fe004
--- /dev/null
+++ b/Assets/Scripts/GameSystem.cs
@@ -0,0 +1,107 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using System; //Exceptions
+
+//Define the global game system of the service. (Singleton)
+//TODO : Split gamesystem into subsystem ?
+public sealed class GameSystem : MonoBehaviour
+{
+    //Time
+    bool serviceOpen = false;
+    float serviceTime = 10.0f;
+    float serviceTimer = 0.0f;
+    float slowScale = 0.5f; //Default scale for slow mode
+    private float fixedDeltaTime;
+
+    //Clients
+    // int nbMaxClients = 2;
+    // float freqNewClients = 3.0f;
+
+    public void startService()
+    {
+        serviceTimer=serviceTime;
+        serviceOpen=true;
+    }
+
+    //Change time scale
+    //Return wether game time follow real-time (not scaled)
+    public bool toggleSlowMode(float? newTimeScale=null)
+    {
+        if(newTimeScale is null) //Toggle between default values
+        {
+            if(Mathf.Approximately(Time.timeScale, 1.0f))
+                Time.timeScale = slowScale;
+            else
+                Time.timeScale = 1.0f;
+        }
+        else //Set to specific scale
+        {
+            if(newTimeScale<0.0f)
+                throw new Exception("Trying to set time scale to negative value (rewinding time...) :"+newTimeScale);
+            
+            Time.timeScale = (float)newTimeScale;
+        }
+
+        // Adjust fixed delta time according to timescale
+        // The fixed delta time will now be 0.02 frames per real-time second
+        Time.fixedDeltaTime = this.fixedDeltaTime * Time.timeScale;
+
+        //Return wether game time follow real-time (not scaled)
+        if(Mathf.Approximately(Time.timeScale, 1.0f))
+            return true;
+        else
+            return false;
+    }
+    
+    //Awake is called when the script instance is being loaded.
+    void Awake()
+    {
+        // Make a copy of the fixedDeltaTime, it defaults to 0.02f, but it can be changed in the editor
+        this.fixedDeltaTime = Time.fixedDeltaTime;
+    }
+
+    // Start is called before the first frame update
+    void Start()
+    {
+        startService();
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        if(serviceOpen)
+        {
+            serviceTimer-= Time.deltaTime;
+            if (serviceTimer < 0)
+                serviceOpen = false;
+        }
+
+        //Temporary manual slowmode toggle
+        if (Input.GetButtonDown("Fire2"))
+        {
+            toggleSlowMode();
+            Debug.Log("Time scale: "+Time.timeScale);
+        }
+        // Debug.Log("Service timer : "+(int)serviceTimer);
+    }
+
+    //// Singleton Implementation (https://jlambert.developpez.com/tutoriels/dotnet/implementation-pattern-singleton-csharp/#LIII) ////
+    private GameSystem()
+    {
+    }
+
+    public static GameSystem Instance { get { return Nested.instance; } }
+        
+    private class Nested
+    {
+        // Explicit static constructor to tell C# compiler
+        // not to mark type as beforefieldinit
+        static Nested()
+        {
+        }
+
+        internal static readonly GameSystem instance = new GameObject("GameSystem").AddComponent<GameSystem>();
+    }
+    ////
+}
\ No newline at end of file
diff --git a/Assets/Scripts/GameSystem.cs.meta b/Assets/Scripts/GameSystem.cs.meta
new file mode 100644
index 0000000..12bfedc
--- /dev/null
+++ b/Assets/Scripts/GameSystem.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 5f18e7df2f912f644a6a6949b25117b6
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/Scripts/Tavernkeeper_controller.cs b/Assets/Scripts/Tavernkeeper_controller.cs
index d0f9f22..94a5363 100644
--- a/Assets/Scripts/Tavernkeeper_controller.cs
+++ b/Assets/Scripts/Tavernkeeper_controller.cs
@@ -66,6 +66,8 @@ public class Tavernkeeper_controller : MonoBehaviour
             {"left", null},
             {"right", null}
         };
+
+        // GameSystem.Instance.startService();
     }
 
     // Update is called once per frame
@@ -89,7 +91,6 @@ public class Tavernkeeper_controller : MonoBehaviour
         animator.SetFloat("Speed", move.magnitude);
 
         //Actions delay
-        actionTimer -= Time.deltaTime;
         if(isInteracting)
         {
             actionTimer -= Time.deltaTime;