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Simplest way to add interpretation strokes to 4 directions y 4 steps.
Try it.
1. Add to the project hierarchy the prefab: Plugins/GTGetureTracker/assets/prefabs/Gesture
2. Inherit from GTParser.
3. Implements the method: protected abstract void Do (GTGestureTracker tracker, int index, bool ended);
4. Add your component to an object in your project.
Doc: Reference