Play a metal creaking sound at rapid acceleration change

[WKFO]

I'm attempting to write a bit of C++ code here, ̷s̷i̷n̷c̷e̷ ̷S̷h̷i̷p̷.̷c̷p̷p̷ ̷s̷e̷e̷m̷s̷ ̷t̷o̷ ̷b̷e̷ ̷t̷h̷e̷ ̷p̷l̷a̷c̷e̷ ̷t̷o̷ ̷d̷o̷ ̷s̷h̷i̷p̷ ̷s̷o̷u̷n̷d̷s̷.̷ ̷(̷A̷l̷s̷o̷ ̷S̷h̷i̷p̷.̷c̷p̷p̷ ̷a̷l̷r̷e̷a̷d̷y̷ ̷h̷a̷s̷ ̷t̷h̷e̷ ̷c̷o̷n̷v̷e̷n̷i̷e̷n̷t̷ ̷u̷t̷i̷l̷i̷t̷i̷e̷s̷ ̷l̷i̷k̷e̷ ̷G̷e̷t̷M̷a̷s̷s̷(̷)̷ ̷e̷t̷c̷.̷)̷

̷T̷h̷i̷s̷ ̷c̷o̷d̷e̷ ̷c̷o̷m̷p̷a̷r̷e̷s̷ ̷t̷h̷e̷ ̷l̷a̷s̷t̷ ̷f̷r̷a̷m̷e̷'̷s̷ ̷a̷c̷c̷e̷l̷e̷r̷a̷t̷i̷o̷n̷ ̷a̷n̷d̷ ̷t̷h̷i̷s̷ ̷f̷r̷a̷m̷e̷'̷s̷ ̷a̷c̷c̷e̷l̷e̷r̷a̷t̷i̷o̷n̷ ̷o̷n̷ ̷t̷h̷e̷ ̷p̷l̷a̷y̷e̷r̷ ̷s̷h̷i̷p̷,̷ ̷a̷n̷d̷ ̷i̷f̷ ̷t̷h̷e̷ ̷d̷i̷f̷f̷e̷r̷e̷n̷c̷e̷ ̷i̷n̷ ̷a̷c̷c̷e̷l̷e̷r̷a̷t̷i̷o̷n̷ ̷i̷s̷ ̷t̷o̷o̷ ̷g̷r̷e̷a̷t̷ ̷(̷5̷0̷ ̷m̷ ̷s̷-̷3̷ ̷t̷o̷ ̷b̷e̷ ̷s̷p̷e̷c̷i̷f̷i̷c̷)̷,̷ ̷i̷t̷ ̷m̷a̷k̷e̷s̷ ̷s̷o̷m̷e̷ ̷m̷e̷t̷a̷l̷ ̷c̷r̷e̷a̷k̷i̷n̷g̷ ̷s̷o̷u̷n̷d̷ ̷e̷f̷f̷e̷c̷t̷.̷ ̷T̷h̷e̷ ̷r̷e̷a̷s̷o̷n̷ ̷I̷'̷m̷ ̷l̷o̷o̷k̷i̷n̷g̷ ̷a̷t̷ ̷t̷h̷e̷ ̷d̷i̷f̷f̷e̷r̷e̷n̷c̷e̷ ̷i̷n̷ ̷a̷c̷c̷e̷l̷e̷r̷a̷t̷i̷o̷n̷ ̷(̷j̷e̷r̷k̷?̷)̷ ̷a̷n̷d̷ ̷n̷o̷t̷ ̷a̷c̷c̷e̷l̷e̷r̷a̷t̷i̷o̷n̷ ̷i̷t̷s̷e̷l̷f̷ ̷i̷s̷ ̷b̷e̷c̷a̷u̷s̷e̷ ̷s̷t̷r̷u̷c̷t̷u̷r̷e̷s̷ ̷s̷e̷t̷t̷l̷e̷ ̷a̷t̷ ̷e̷q̷u̷i̷l̷i̷b̷r̷i̷u̷m̷ ̷a̷t̷ ̷c̷o̷n̷s̷t̷.̷ ̷a̷c̷c̷e̷l̷.̷
Edit: No longer doing that, we look at last 5 frames of acceleration change.

In a lot of high-g cases this will probably be masked by airflow or engine sounds partially, but I thought it could still be a nice effect.

[WKFO]

Now the code should look at last 5 frames to trigger the sound. This prevents thrusters from causing this metal sound, and allows me to lower the value limit to a more sensible one.

[sturnclaw]

I'm not really a fan of the way this is implemented (in a general architectural sense), but it's about as clean an implementation as can be expected given our existing class hierarchy. I have no objections to merging this, but it will need to be refactored sooner or later.