Falloff components literally determine how rapidly the power of a force falls off (decays) over distance and therefore the area that the force can possibly affect. Each force entity may host between zero and four falloff components, where no falloff will produce an infinite-range force.
Each falloff component is given one of three decay types - linear, quadratic or constant. A linear falloff will decay at a constant rate from 100% at the centre of the force to 0% at the edge of the falloff area and, if graphed, would appear as a straight diagonal line. Quadratic falloff is a fast estimation of the real-world 1/dist^2
attenuation formula will produce a more realistic, although not necessarily more useful, curved response. Finally, constant falloff avoids decay entirely and transitions immediately between 100% and 0% strength at the outer bound of the force. The falloff method is declared during the creation of the falloff component.
The following falloff components and functions are available:
Area falloff
Cone falloff
Combination methods
Range scaling
Note: Constant decay is a bit of a misnomer as the "constant" refers mostly to the resulting strength of the force itself. To avoid confusion, it may later be renamed, possibly to boolean falloff.