[fixed] spiker Z layer for vanilla

[Gingerbeard5773]

resolves #2274

[Gingerbeard5773]

@mugg91 you can change up your pr to incorporate this change, i will close this pr in response

[mugg91]

Omg, it works.
Ok, I will revert all that stuff I did in #2271 but it might take me a day or two.

[mugg91]

Omg, it works. Ok, I will revert all that stuff I did in #2271 but it might take me a day or two.

I tried this solution in #2271 but I noticed a problem.
When spiker is ejected and bloody, then rejoining, then retracting the spiker, its tip wouldn't be bloody (a feature this PR added).
It's likely because when Spike is created, onReceiveCreateData() is called, which calls UpdateSprite(), which tries to update Spiker by fetching its net id from Spike. But it doesn't go through with the update, maybe because Spiker isn't created yet.

I think dealing with this problem would introduce more code to the point where I think the solution I worked out in #2271 might be more satisfying. Instead of updating blood in Spike and Spiker, that PR only updates blood on Spike's sprite, period.