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Postponed means that the issue was either a feature request or something that requires major refactoring on our side. Since that makes the issue not actionable in the close future we choose to close it as Postponed and add it on our internal roadmaps and technical debt pages instead.

Postponed

Votes

0

Found in [Package]

1.1.0-preview.3

Issue ID

1316763

Regression

No

[Input System] Three events are logged for every phase change of the action when pressing a button once

Package: Input System

-

How to reproduce:
1. Open the attached project "tripleinput.zip"
2. From the Project tab, open Assets/Scenes/SampleScene.unity
3. Enter Play Mode and make sure that the Console tab is visible
4. Press the spacebar once

Expected results: only one message is logged in the Console
Actual results: three messages are logged in the Console

Reproducible with: 2019.4.22f1, 2020.2.7f1, 2020.3.1f1, 2021.1.0b12, 2021.2.0a9 (Input System 1.0.2, 1.1.0-preview.3)
Could not test with: 2018.4.33f1 as it requires outdated versions of Input System

Notes:
- The issue appears due to UnityEvents codepath invoking the callback for every phase change of the action (started, performed, cancelled)
- The current workaround is to detect phases through scripts and call events based on that (https://docs.unity3d.com/Packages/com.unity.inputsystem@1.0/api/UnityEngine.InputSystem.InputAction.CallbackContext.html#properties)

  1. Resolution Note:

    Will get addressed as feature work.

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