Fix input handling

Keyboard input is blocked when a menu is receiving text input
Mouse inputs are blocked when the mouse is visible and hovering over an imgui item

CringeLauncher/ImGuiHandler.cs

@@ -18,6 +18,11 @@ internal class ImGuiHandler : IDisposable
     private DeviceContext? _deviceContext;
     private static nint _wndproc;
 
+    public bool BlockMouse { get; private set; }
+    public bool BlockKeys { get; private set; }
+    public bool DrawMouse { get; private set; }
+
+
     public static ImGuiHandler? Instance;
     
     public static RenderTargetView? Rtv;
@@ -65,7 +70,11 @@ internal class ImGuiHandler : IDisposable
         ImGui_ImplDX11_NewFrame();
         ImGui_ImplWin32_NewFrame();
         NewFrame();
-        
+
+        var io = GetIO();
+        BlockMouse = io.WantCaptureMouse;
+        BlockKeys = io.WantTextInput;
+        DrawMouse = io.MouseDrawCursor;
         _renderHandler.OnFrame();
         
         Render();

CringeLauncher/Patches/InputPatch.cs

@@ -0,0 +1,33 @@
+using HarmonyLib;
+using VRage;
+using VRage.Input;
+using VRage.Input.Keyboard;
+using VRage.Platform.Windows.Input;
+
+namespace CringeLauncher.Patches;
+
+[HarmonyPatch]
+internal static class InputPatch
+{
+    [HarmonyPrefix, HarmonyPatch(typeof(MyDirectInput), nameof(MyDirectInput.GetMouseState))]
+    private static bool GetMouseStatePrefix(ref MyMouseState state)
+    {
+        if (ImGuiHandler.Instance?.BlockMouse == true && (MyVRage.Platform.Input.ShowCursor || ImGuiHandler.Instance.DrawMouse))
+        {
+            state = default;
+            return false;
+        }
+        return true;
+    }
+
+    [HarmonyPrefix, HarmonyPatch("VRage.Input.Keyboard.MyGuiLocalizedKeyboardState", "GetCurrentState")]
+    private static bool GetKeyboardStatePrefix(ref MyKeyboardState __result)
+    {
+        if (ImGuiHandler.Instance?.BlockKeys == true)
+        {
+            __result = default;
+            return false;
+        }
+        return true;
+    }
+}