"sound test"
I created the SoundEffect class and deleted the old SoundPlayer class. I
refactored the generateVehicle and generatePlatform methods so each
vehicle and platform can be generated dynamically based on its own
regeneration rate. To do this I made getVehicleTime, getPlatformTime,
resetVehicleTime, and resetPlatformTime methods. I also several needed
comments and author comments to all of our classes.