From bda9adc35344ee85dd96e6b054e6d7a72134abd4 Mon Sep 17 00:00:00 2001
From: Zoryn Aaron <zoryn4163@gmail.com>
Date: Mon, 21 Mar 2016 01:57:42 -0400
Subject: [PATCH] adds first update tick

---
 StardewModdingAPI/Constants.cs         |  2 +-
 StardewModdingAPI/Events/Game.cs       |  6 +++++
 StardewModdingAPI/Extensions.cs        | 36 ++++++++++++++++++++++++--
 StardewModdingAPI/Inheritance/SGame.cs | 14 +++++++++-
 4 files changed, 54 insertions(+), 4 deletions(-)

diff --git a/StardewModdingAPI/Constants.cs b/StardewModdingAPI/Constants.cs
index 071f0435..0ddae033 100644
--- a/StardewModdingAPI/Constants.cs
+++ b/StardewModdingAPI/Constants.cs
@@ -35,7 +35,7 @@ namespace StardewModdingAPI
 
         public const int MinorVersion = 38;
 
-        public const int PatchVersion = 1;
+        public const int PatchVersion = 3;
 
         public const string Build = "Alpha";
 
diff --git a/StardewModdingAPI/Events/Game.cs b/StardewModdingAPI/Events/Game.cs
index 60531dd8..ac630ba9 100644
--- a/StardewModdingAPI/Events/Game.cs
+++ b/StardewModdingAPI/Events/Game.cs
@@ -11,6 +11,7 @@ namespace StardewModdingAPI.Events
         public static event EventHandler GameLoaded = delegate { };
         public static event EventHandler Initialize = delegate { };
         public static event EventHandler LoadContent = delegate { };
+        public static event EventHandler FirstUpdateTick = delegate { };
         /// <summary>
         /// Fires every update (1/60 of a second)
         /// </summary>
@@ -110,5 +111,10 @@ namespace StardewModdingAPI.Events
         {
             OneSecondTick.Invoke(null, EventArgs.Empty);
         }
+
+        public static void InvokeFirstUpdateTick()
+        {
+            FirstUpdateTick.Invoke(null, EventArgs.Empty);
+        }
     }
 }
diff --git a/StardewModdingAPI/Extensions.cs b/StardewModdingAPI/Extensions.cs
index 28eb2d7d..d4b582b7 100644
--- a/StardewModdingAPI/Extensions.cs
+++ b/StardewModdingAPI/Extensions.cs
@@ -2,6 +2,7 @@
 using System.Collections;
 using System.Collections.Generic;
 using System.Linq;
+using System.Reflection;
 using System.Text;
 using System.Threading.Tasks;
 using Microsoft.Xna.Framework;
@@ -59,11 +60,42 @@ namespace StardewModdingAPI
                 hash ^= v.GetHashCode();
             }
             return hash;
-        } 
+        }
 
-        public static T Cast<T>(this object o) where T : StardewValley.Object
+        public static T Cast<T>(this object o) where T : class
         {
             return o as T;
         }
+
+        public static FieldInfo[] GetPrivateFields(this object o)
+        {
+            return o.GetType().GetFields(BindingFlags.Instance | BindingFlags.NonPublic);
+        }
+
+        public static FieldInfo GetBaseFieldInfo(this Type t, string name)
+        {
+            return t.GetField(name, BindingFlags.Instance | BindingFlags.NonPublic);
+        }
+
+        public static T GetBaseFieldValue<T>(this Type t, object o, string name) where T : class
+        {
+            return t.GetBaseFieldInfo(name).GetValue(o) as T;
+        }
+
+        /*
+        public static T GetBaseFieldValue<T>(this object o, string name) where T : class
+        {
+            return o.GetType().GetBaseFieldInfo(name).GetValue(o) as T;
+        }*/
+
+        public static object GetBaseFieldValue(this object o, string name)
+        {
+            return o.GetType().GetBaseFieldInfo(name).GetValue(o);
+        }
+
+        public static void SetBaseFieldValue (this object o, string name, object newValue)
+        {
+            o.GetType().GetBaseFieldInfo(name).SetValue(o, newValue);
+        }
     }
 }
\ No newline at end of file
diff --git a/StardewModdingAPI/Inheritance/SGame.cs b/StardewModdingAPI/Inheritance/SGame.cs
index 9082d695..53d9df59 100644
--- a/StardewModdingAPI/Inheritance/SGame.cs
+++ b/StardewModdingAPI/Inheritance/SGame.cs
@@ -174,6 +174,13 @@ namespace StardewModdingAPI.Inheritance
         public Farmer PreviousFarmer { get; private set; }
 
         public Int32 CurrentUpdateTick { get; private set; }
+        public bool FirstUpdate { get; private set; }
+
+        public RenderTarget2D Screen
+        {
+            get { return typeof (Game1).GetBaseFieldValue<RenderTarget2D>(Program.gamePtr, "screen"); }
+            set { typeof (Game1).SetBaseFieldValue("screen", value); }
+        }
 
         private static SGame instance;
         public static SGame Instance { get { return instance; } }
@@ -183,6 +190,7 @@ namespace StardewModdingAPI.Inheritance
         public SGame()
         {
             instance = this;
+            FirstUpdate = true;
 
             /*
 #if DEBUG
@@ -255,6 +263,11 @@ namespace StardewModdingAPI.Inheritance
             }
 
             Events.GameEvents.InvokeUpdateTick();
+            if (FirstUpdate)
+            {
+                GameEvents.InvokeFirstUpdateTick();
+                FirstUpdate = false;
+            }
 
             if (CurrentUpdateTick % 2 == 0)
                 Events.GameEvents.InvokeSecondUpdateTick();
@@ -278,7 +291,6 @@ namespace StardewModdingAPI.Inheritance
             if (CurrentUpdateTick >= 60)
                 CurrentUpdateTick = 0;
 
-
             PreviouslyPressedKeys = CurrentlyPressedKeys;
             for(PlayerIndex i = PlayerIndex.One; i <= PlayerIndex.Four; i++)
             {