InputContext Class
SDL3 implementation of the input context. Subscribes to internal SDL events and maintains per-frame input state. Publishes high-level, framework-agnostic events for user code.
internal sealed class InputContext : Brine2D.Input.IInputContext, System.IDisposableInheritance System.Object → InputContext
Implements IInputContext, System.IDisposable
Remarks¶
Thread-safe: all mutable state is guarded by Brine2D.Input.InputContext._stateLock. The lock is never held while publishing events to avoid deadlocks when user handlers query input state re-entrantly.
| Methods | |
|---|---|
| ClearFrameState() | Clears all per-frame input state. Called directly by unit tests to simulate a new frame boundary. |
| SnapshotAxisState() | Promotes the previous frame's current axis state to the previous buffer, then captures a fresh snapshot of live axis values into the current buffer. Called at frame start so that Brine2D.Input.InputContext.IsGamepadAxisPressed(Brine2D.Input.GamepadAxis,System.Int32) and Brine2D.Input.InputContext.IsGamepadAxisReleased(Brine2D.Input.GamepadAxis,System.Int32) can compare last frame's state against this frame's live values. |