Make (equivalent for) dragAndMoveBall available again

[igrep]

This is still draft because I left a several things below and I want to show you before completing to reduce the risk in case of refusal. FEEDBACK WELCOME!

• More customizable debugging mode: make controlMode and visualizeBlocks separately configurable on popup.html. See https://github.com/canalun/brick-break-anywhere/pull/15#discussion_r1650971230 on why I removed this.
• [x] Refactor: apply updateBallPositionTo to other objects if possible and it deserves.

Background

When I first play with brick-block-anywhere on my website, I found a bug that could be a good chance for me to learn the browser's behavior. This feature is very useful for reproducing the bug and testing after fixing it.

Changes Summary

• Add a function controlBallByMouse to move the ball by mouse so that we can easily put the ball at some place for debugging.
• Abstract the procedure to move the ball (updateBallPositionBy and updateBallPositionTo) to hide the details and for consistency.
• Merge TestMessage into StartMessage because now the non-debugging mode has to know whether the debugging mode is enabled to disable the default movement of the ball.
  • Bonus: this change also makes https://github.com/canalun/brick-break-anywhere/commit/12c7f5388700581a373decda998a4bffbf957668 unnecessary. It's simpler!

Screenshot

[canalun]

@igrep Apologies for my late reply. After a busy month, now I have time to review this PR. I like your idea! So could you please go for it? Sorry for late response. (FYI. I've left some comments, thank you for checking them!)

[canalun]

And I like your branch name :)

[igrep]

And I like your branch name :)

Thank you! 😁 To tell the truth, I couldn't make up a good name for controlMode: "mouse" at first. Then I decided to give a name that sounds something super because it breaks the nature of the brick-break game. "God mode" might be more suitable, but "God" could be so religious that I couldn't determine it's safe. "Ninja" would have no such a problem and everyone loves it by contrast!

And the prefix "2" means it's just the second try 😅 .

[igrep]

NOTE: I force-pushed https://github.com/canalun/brick-break-anywhere/commit/3aad11f1f64cb45f3fb7484bde5ad944b15cce5e because https://github.com/canalun/brick-break-anywhere/commit/80770191c2d8300b39a4786fff26eb311989a470 doesn't work because only the declaration of ball is renamed.