Lowering tickrate introduces issues where inputs could be missed

Hey,

FYI to developers (might be worth changing the example projects to include this feature).

Issue:

Button presses that occur between TrueSync tick updates are ignored due to the low tick-rate of TrueSync.

Solution:

Capture inputs in Update, with a strategy for overriding, and then reset in OnSyncedInput(). E.g.

        // In MonoBehaviour.Update.

        // Joystick can just be called on sync.
        // OR the button inputs. These will be reset when we commit them in OnSyncedInput().
        m_action1 |= Input.GetKey(KeyCode.Space);
        m_action2 |= Input.GetKey(KeyCode.Space);

        ...

        // In TrueSyncBehaviour.OnSyncedInput.

        // Commit (get left stick in place, as there is no aggregation needed).
        TrueSyncInput.SetTSVector2(0, new TSVector2(Input.GetAxis("Horizontal"), Input.GetAxis("Vertical")););
        TrueSyncInput.SetBool(1, m_action1);
        TrueSyncInput.SetBool(2, m_action2);
         
        // Reset.
        m_action1 = m_action2 = false;

This supports GetKeyDown/Up too, obviously.

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