Revert "_currentFrame[] saved in binary tile data (for UFO doors)"

This reverts commit 4580e6efc2c0445f2c2c3bc320d91ede41d8447f.
fixed gravity

- removed a vestigial exclamation point and suddenly it worked.
- had to force it to re-evaluate if it was falling, sucks, but works.
- fixed reapers.