Redo Savestate context menu item implemented

BizHawk.MultiClient/MainForm.MenuItems.cs

@@ -877,9 +877,18 @@ namespace BizHawk.MultiClient
 			var file = new FileInfo(path);
 			if (file.Exists == true)
 			{
-				contextMenuStrip1.Items[13].Enabled = true;
-				contextMenuStrip1.Items[13].Text = "Undo Save to slot " + SaveSlot.ToString();
-				contextMenuStrip1.Items[13].Image = BizHawk.MultiClient.Properties.Resources.undo;
+				if (StateSlots.IsRedo(SaveSlot))
+				{
+					contextMenuStrip1.Items[13].Enabled = true;
+					contextMenuStrip1.Items[13].Text = "Redo Save to slot " + SaveSlot.ToString();
+					contextMenuStrip1.Items[13].Image = BizHawk.MultiClient.Properties.Resources.redo;
+				}
+				else
+				{
+					contextMenuStrip1.Items[13].Enabled = true;
+					contextMenuStrip1.Items[13].Text = "Undo Save to slot " + SaveSlot.ToString();
+					contextMenuStrip1.Items[13].Image = BizHawk.MultiClient.Properties.Resources.undo;
+				}
 			}
 			else
 			{
@@ -887,8 +896,6 @@ namespace BizHawk.MultiClient
 				contextMenuStrip1.Items[13].Text = "Undo Savestate";
 				contextMenuStrip1.Items[13].Image = BizHawk.MultiClient.Properties.Resources.undo;
 			}
-
-			//contextMenuStrip1.Items[13].Enabled = false;
 		}
 
 

BizHawk.MultiClient/MainForm.cs

@@ -962,7 +962,7 @@ namespace BizHawk.MultiClient
 				Cheats1.Restart();
 				CurrentlyOpenRom = file.CanonicalFullPath;
 				HandlePlatformMenus();
-				UpdateStatusSlots();
+				StateSlots.Clear();
 				UpdateDumpIcon();
 				return true;
 			}
@@ -1954,7 +1954,7 @@ namespace BizHawk.MultiClient
 			Cheats1.Restart();
 			Text = "BizHawk";
 			HandlePlatformMenus();
-			UpdateStatusSlots();
+			StateSlots.Clear();
 			UpdateDumpIcon();
 		}
 
@@ -2196,6 +2196,8 @@ namespace BizHawk.MultiClient
 			state.Delete();
 			temp.CopyTo(path);
 			temp.Delete();
+
+			StateSlots.ToggleRedo(SaveSlot);
 		}
 	}
 }

BizHawk.MultiClient/SavestateManager.cs

@@ -9,6 +9,7 @@ namespace BizHawk.MultiClient
 	class SavestateManager
 	{
 		private bool[] slots = new bool[10];
+		private bool[] redo = new bool[10];
 
 		public SavestateManager()
 		{
@@ -51,5 +52,35 @@ namespace BizHawk.MultiClient
 			Update();
 			return slots[slot];
 		}
+
+		public void ClearRedoList()
+		{
+			for (int x = 0; x < 10; x++)
+			{
+				redo[x] = false;
+			}
+		}
+
+		public void ToggleRedo(int slot)
+		{
+			if (slot < 0 || slot > 9)
+				return;
+
+			redo[slot] ^= true;
+		}
+
+		public bool IsRedo(int slot)
+		{
+			if (slot < 0 || slot > 9)
+				return false;
+
+			return redo[slot];
+		}
+
+		public void Clear()
+		{
+			ClearRedoList();
+			Update();
+		}
 	}
 }