WASD to move, Space to jump.
GREEN = elevator: ride up/down (vertical carry).
BLUE = sliding floor: ride left/right (horizontal carry).
ORANGE = turntable: stand off-center to orbit around it (rotational carry).
PINK = swinging door: hinged panel that swings back and forth and pushes you.
TEAL = conveyor belt: floor stays put; its surface carries you along the arrows.
YELLOW = escalator: inclined conveyor; its surface carries you up the slope.
sync camera front angle to platform rotation