2019.3/marc

[unitymarc]

• Added a state-driven camera, so instead of a single follow cam, we vary distance based on engine speed, giving the camera a slightly more natural feel of pulling away as the boat accelerates.
• Added impulses to the cameras so there’s a bit of shake when boats collide.
• Added audio to the collisions to motivate the impulses (admittedly we might want to work on the sounds. They’re…ok.).
• Added a randomizer to the audio (clip and pitch) so that we don’t always get the same sound when boats collide.