Linearly interpolates between two vectors.
Interpolates between from and to by the fraction t. This is most commonly used to find a point some fraction of the way along a line between two endpoints (eg, to move an object gradually between those points). This fraction is clamped to the range [0...1]. When t = 0 returns from. When t = 1 returns to. When t = 0.5 returns the point midway between from and to.
// Transforms to act as start and end markers for the journey.
var startMarker: Transform;
var endMarker: Transform;
// Movement speed in units/sec.
var speed = 1.0;
// Time when the movement started.
private var startTime: float;
// Total distance between the markers.
private var journeyLength: float;
var target : Transform;
var smooth = 5.0;
function Start() {
// Keep a note of the time the movement started.
startTime = Time.time;
// Calculate the journey length.
journeyLength = Vector3.Distance(startMarker.position, endMarker.position);
}
// Follows the target position like with a spring
function Update () {
// Distance moved = time * speed.
var distCovered = (Time.time - startTime) * speed;
// Fraction of journey completed = current distance divided by total distance.
var fracJourney = distCovered / journeyLength;
// Set our position as a fraction of the distance between the markers.
transform.position = Vector3.Lerp(startMarker.position, endMarker.position, fracJourney);
}