MINGW/MINGW64 implies SDL.

Remove direct definition for D__USE_MINGW_ANSI_STDIO, as the latest standards consider this to be deprecated.

All because of a typo

This reverts commit 569453ee.

And one line from b6089ccd.

This is needed for graphics replacements to take effect.

This is so netvars registered by any lua scripts will load in the correct order.

Replaced some of the lower resolution variants with some smoother downscales. The 16x16 one is even Sonic's 1-up icon from the game!

A_Boss1Laser (pinch phase): Reset var1 to locvar1 each time so we don't accidentally spawn koopas (or something else) as a result of hitting enemies with the laser

Previously sounds with an origin would always start at max volume. This is
because the distance calculation adjusts the volume, and that volume needs to
be updated every tic as distance changes. Storing the original volume works.

(cherry picked from commit 22177753d2f00d58d19d930f51dcd086097dfd0d)

(ported 17f75903b029bbf01217153dc98009d305137c8f and 11ddcfa9a1f2311ec67377b76ed1160ef14b7f60)