Format
lerp(A, B, factor)
Returns
An interpolated value between A and B
Args
A: A number, matrix, vector, or turf/pixloc.B: Another number, matrix, vector, or turf/pixloc.factor: Interpolation factor, usually 0 to 1
Returns an interpolation or extrapolation from A to B. If factor is 0, A is returned; if factor is 1, B is returned. Otherwise an interpolated value between A and B is returned, based on the value of factor. The types of A and B must match, with few exceptions.
This is basically equivalent to returning A + (B-A) * factor for most things. When interpolating objects such as vectors, the returned value is always a new value, never a direct copy of A or B.
usr << lerp(1, 5, 0.25) // outputs 2Turfs can be treated like pixlocs in lerp(), so you can interpolate between turfs. Note that they must have the same Z coordinate.
Matrix interpolation behaves according to the rules in the matrix Interpolate() proc. For linear interpolation you need to use A + (B-A) * factor instead.