Lua library Animate: StoppedGear now returns true if gear does not exist
Fixes Lua error spam in ACF1 when Leaks a Lot drows
Directory for automated tests to test the engine.
Run `ctest` in the root directory of this repository to run all tests.
Run `ctest -R <test name>` to run only the test with the given name.
This requires you to have CMake.