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Implement error catching for hotspots #5

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Implement error catching for hotspots #5

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a1a42e5
Implement error catching for hotspots
Plootie Sep 23, 2025
274684c
Fix error reporting catching task cancellation
Plootie Sep 23, 2025
50663af
Add reporting for missing window handle
Plootie Sep 25, 2025
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76 changes: 54 additions & 22 deletions LockIn/ViewModels/MainWindowViewModel.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -39,36 +39,59 @@ public MainWindowViewModel()

private async Task<Process> GetHelldiversProcessAsync(CancellationToken ct = default)
{
Process[] processes;
while ((processes = Process.GetProcessesByName(HELLDIVER_PROCESS_NAME)).Length < 1)
try
{
await Task.Delay(1000, ct).ConfigureAwait(false);
Process[] processes;
while ((processes = Process.GetProcessesByName(HELLDIVER_PROCESS_NAME)).Length < 1)
{
await Task.Delay(1000, ct).ConfigureAwait(false);
}

return processes[0];
}
catch (Exception e)
{
if (e is not OperationCanceledException)
{
MessageBox.Show(
$"The code has undemocratically crashed!\nPlease report this violation to your democracy officer:\n\n{e}",
"Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
throw;
}

return processes[0];
}

private async Task LockIn(Process proc, CancellationToken ct = default)
{
IntPtr helldiverWindowHandle = proc.MainWindowHandle; //Technically this gets cached anyway but meh
while (!ct.IsCancellationRequested && !proc.HasExited)
try
{
IntPtr foregroundWindowHandle = Natives.GetForegroundWindow();
if (foregroundWindowHandle == helldiverWindowHandle && proc.Responding)
{
if (!Natives.GetWindowRect(foregroundWindowHandle, out RECT windowBounds)) break;
Natives.ClipCursor(ref windowBounds);
}
else
IntPtr helldiverWindowHandle = proc.MainWindowHandle; //Technically this gets cached anyway but meh
while (!ct.IsCancellationRequested && !proc.HasExited)
{
Natives.ClipCursor(IntPtr.Zero);
}
IntPtr foregroundWindowHandle = Natives.GetForegroundWindow();
if (foregroundWindowHandle == helldiverWindowHandle && proc.Responding)
{
if (!Natives.GetWindowRect(foregroundWindowHandle, out RECT windowBounds)) break;
Natives.ClipCursor(ref windowBounds);
}
else
{
Natives.ClipCursor(IntPtr.Zero);
}

try{ await Task.Delay(100, ct).ConfigureAwait(false); }
catch { break; }
}
try{ await Task.Delay(100, ct).ConfigureAwait(false); }
catch { break; }
}

Natives.ClipCursor(IntPtr.Zero);
Natives.ClipCursor(IntPtr.Zero);
}
catch (Exception e)
{
MessageBox.Show(
$"The code has undemocratically crashed!\nPlease report this violation to your democracy officer:\n\n{e}",
"Error", MessageBoxButton.OK, MessageBoxImage.Error);
throw;
}
}

private void QuitApplication(object sender, ExitEventArgs e)
Expand All @@ -93,21 +116,30 @@ public void ClipGame()
StatusText = _statusTextDictionary[StatusEnum.LookingForGame];

CancellationTokenSource linkedTokenSource =

CancellationTokenSource.CreateLinkedTokenSource(_applicationExitTokenSource.Token, _clipCTS.Token);
_ = GetHelldiversProcessAsync(linkedTokenSource.Token).ContinueWith(async t =>
{
//TODO: Report this error
if (t.Status != TaskStatus.RanToCompletion) return;
if (t.Status != TaskStatus.RanToCompletion)
{
MessageBox.Show(
$"The code has undemocratically crashed!\nPlease report this violation to your democracy officer:\n\n{t.Exception}",
"Error", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
Process helldiversProc = t.Result;
while (helldiversProc.MainWindowHandle == IntPtr.Zero)
{
MessageBox.Show("Proc found but now window handle. Waiting...");
await Task.Delay(250, linkedTokenSource.Token).ConfigureAwait(false);
helldiversProc.Refresh();
}
helldiversProc.Refresh();

StatusText = _statusTextDictionary[StatusEnum.Enabled];
_ = LockIn(helldiversProc, linkedTokenSource.Token).ContinueWith(x =>
{
if(x.Status != TaskStatus.RanToCompletion) return;
if(IsLockEnabled) ClipGame();
});
}, linkedTokenSource.Token);
Expand Down