For the game system, movement is factored in over particular periods of time. Free Movement Movement, restricted only by momentum and possibly gravity. Needs a reactive propulsion system. Gravity is normal to the plane of movement. Climbing Constrained movement up the side of an object under the effects of gravity and wind resistance and friction.
Gravity is parallel to the plane of movement.
Swimming and Flying Free movement restrained by resistance and buoyancy. All rights reserved. The contents of this web site are distributed under the Open Content Licence . Helper - A Java Applet that calculates the success percentages.