Lowering megafauna mouse_opacity

[HMBGERDO]

What Does This PR Do

Making megafauna mouse opacity stick to its icon than its size. That means that you will click megafauna only if you actually click its icon, not the 3x3 tile box which its icon size is.

I wonder why it even was used for such massive objects with big sprites as megafauna.

Why It's Good For The Game

If you ever played as megafauna on some events, you might have find that your icon is weird, its much bigger than it looks like, you nearly always attack yourself in melee. This setting was making it, your icon was basically 3x3 box, forget about visual. And also all mobs are hidden behind that 3x3 box because your layer is above them.

If there is an item or a mob behind the megafauna and you want to interact with it, you will fail because megafauna 3x3 box covers most in game objects.

This fix makes megafauna icon actaully its icon, not 3x3 tile box.

Megafauna sprites are big, clicking it on melee or range attacks is easy enough, its layer is ontop of most objects in game.

Testing

Compiled, clicked on fauna.

Changelog

🆑
tweak: Now you need to actually click on megafauna icon to attack it.
/:cl: