lerp function
Performs a linear interpolation between two vec2's
@param {vec2} out the receiving vector
@param {ReadonlyVec2} a the first operand
@param {ReadonlyVec2} b the second operand
@param {Number} t interpolation amount, in the range 0-1
, between the two inputs
@returns {vec2} out
Implementation
List<double> lerp(out, a, b, t) {
var ax = a[0], ay = a[1];
out[0] = ax + t * (b[0] - ax);
out[1] = ay + t * (b[1] - ay);
return out;
}