From 3a8ed89583e34d0ad656039ffe186cfc9acb1246 Mon Sep 17 00:00:00 2001
From: Garry Newman <garrynewman@gmail.com>
Date: Mon, 8 May 2017 20:34:13 +0100
Subject: [PATCH] Achievement basics

---
 Facepunch.Steamworks/Client.cs              |  17 ++-
 Facepunch.Steamworks/Client/Achievements.cs | 123 ++++++++++++++++++++
 Facepunch.Steamworks/Client/Stats.cs        |  24 ++--
 3 files changed, 146 insertions(+), 18 deletions(-)
 create mode 100644 Facepunch.Steamworks/Client/Achievements.cs

diff --git a/Facepunch.Steamworks/Client.cs b/Facepunch.Steamworks/Client.cs
index e21ea95..954a538 100644
--- a/Facepunch.Steamworks/Client.cs
+++ b/Facepunch.Steamworks/Client.cs
@@ -51,6 +51,8 @@ namespace Facepunch.Steamworks
         public Voice Voice { get; private set; }
         public ServerList ServerList { get; private set; }
         public App App { get; private set; }
+        public Achievements Achievements { get; private set; }
+        public Stats Stats { get; private set; }
 
         public Client( uint appId )
         {
@@ -77,10 +79,11 @@ namespace Facepunch.Steamworks
             Voice = new Voice( this );
             ServerList = new ServerList( this );
             App = new App( this );
+            Stats = new Stats( this );
+            Achievements = new Achievements( this );
 
             Workshop.friends = Friends;
 
-
             //
             // Cache common, unchanging info
             //
@@ -145,6 +148,18 @@ namespace Facepunch.Steamworks
                 App = null;
             }
 
+            if ( Stats  != null )
+            {
+                Stats.Dispose();
+                Stats = null;
+            }
+
+            if ( Achievements != null )
+            {
+                Achievements.Dispose();
+                Achievements = null;
+            }
+
             base.Dispose();
         }
 
diff --git a/Facepunch.Steamworks/Client/Achievements.cs b/Facepunch.Steamworks/Client/Achievements.cs
new file mode 100644
index 0000000..ae43092
--- /dev/null
+++ b/Facepunch.Steamworks/Client/Achievements.cs
@@ -0,0 +1,123 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Facepunch.Steamworks
+{
+    public class Achievements : IDisposable
+    {
+        internal Client client;
+
+        public Achievement[] All { get; private set; }
+
+        internal Achievements( Client c )
+        {
+            client = c;
+            Refresh();
+        }
+
+        public void Refresh()
+        {
+            All = Enumerable.Range( 0, (int)client.native.userstats.GetNumAchievements() )
+                .Select( x => new Achievement( client, x ) )
+                .ToArray();
+        }
+
+        public void Dispose()
+        {
+            client = null;
+        }
+
+    }
+
+    public class Achievement
+    {
+        private Client client;
+
+        public string Id { get; private set; }
+        public string Name { get; private set; }
+        public string Description { get; private set; }
+
+        /// <summary>
+        /// True if unlocked
+        /// </summary>
+        public bool State { get; private set; }
+
+        /// <summary>
+        /// Should hold the unlock time if State is true
+        /// </summary>
+        public DateTime UnlockTime { get; private set; }
+
+        /// <summary>
+        /// If this achievement is linked to a stat this will return the progress.
+        /// </summary>
+        public float Percentage
+        {
+            get
+            {
+                if ( State )
+                    return 1;
+
+                float pct = 0;
+
+                if ( !client.native.userstats.GetAchievementAchievedPercent( Id, out pct ) )
+                    return -1.0f;
+
+                return pct;
+            }
+        }
+
+        public Achievement( Client client, int index )
+        {
+            this.client = client;
+
+            Id = client.native.userstats.GetAchievementName( (uint) index );
+            Name = client.native.userstats.GetAchievementDisplayAttribute( Id, "name" );
+            Description = client.native.userstats.GetAchievementDisplayAttribute( Id, "desc" );
+
+            Refresh();
+        }
+
+        /// <summary>
+        /// Make this achievement earned
+        /// </summary>
+        public bool Trigger()
+        {
+            State = true;
+            UnlockTime = DateTime.Now;
+
+            return client.native.userstats.SetAchievement( Id );
+        }
+
+        /// <summary>
+        /// Reset this achievement to not achieved
+        /// </summary>
+        public bool Reset()
+        {
+            State = false;
+            UnlockTime = DateTime.Now;
+
+            return client.native.userstats.ClearAchievement( Id );
+        }
+
+        /// <summary>
+        /// Refresh the unlock state. You shouldn't need to call this manually
+        /// but it's here if you have to for some reason.
+        /// </summary>
+        public void Refresh()
+        {
+            bool state = false;
+            uint unlockTime;
+
+            State = false;
+
+            if ( client.native.userstats.GetAchievementAndUnlockTime( Id, ref state, out unlockTime ) )
+            {
+                State = state;
+                UnlockTime = Utility.Epoch.ToDateTime( unlockTime );
+            }
+        }
+    }
+
+}
diff --git a/Facepunch.Steamworks/Client/Stats.cs b/Facepunch.Steamworks/Client/Stats.cs
index 8167fbc..2a3bfc6 100644
--- a/Facepunch.Steamworks/Client/Stats.cs
+++ b/Facepunch.Steamworks/Client/Stats.cs
@@ -5,29 +5,15 @@ using System.Text;
 
 namespace Facepunch.Steamworks
 {
-    public partial class Client : IDisposable
-    {
-        Stats _stats;
-
-        public Stats Stats
-        {
-            get
-            {
-                if ( _stats == null )
-                    _stats = new Stats( this );
-
-                return _stats;
-            }
-        }
-    }
-
-    public class Stats
+    public class Stats : IDisposable
     {
         internal Client client;
 
         internal Stats( Client c )
         {
             client = c;
+
+            UpdateStats();
         }
 
         public void UpdateStats()
@@ -70,5 +56,9 @@ namespace Facepunch.Steamworks
             return data;
         }
 
+        public void Dispose()
+        {
+            client = null;
+        }
     }
 }