Touch: Check if emitter has already been set up

[dronesflier]

This PR should resolve 270 and re-resolve #83. (.moved is not a function)

[Copilot]

Pull Request Overview

This PR adds defensive checks to prevent errors when the emitter object doesn't have the expected moved and ended methods, addressing issue #270 where ".moved is not a function" errors occur.

• Added null/undefined checks before calling moved() and ended() methods on the emitter object
• Extracted emitter calls to variables for better readability and to avoid duplicate function calls

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[dronesflier]

copilot what are you doing i didnt ask you to do anything

EDIT: I disabled that setting. Why I had it on in the first place is a mystery...