revival/game/Assets/PathCreator/Examples/Scripts/PathFollower.cs

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2021-03-12 15:33:05 +01:00
using UnityEngine;
namespace PathCreation.Examples
{
// Moves along a path at constant speed.
// Depending on the end of path instruction, will either loop, reverse, or stop at the end of the path.
public class PathFollower : MonoBehaviour
{
public PathCreator pathCreator;
public EndOfPathInstruction endOfPathInstruction;
public float speed = 5;
float distanceTravelled;
void Start() {
if (pathCreator != null)
{
// Subscribed to the pathUpdated event so that we're notified if the path changes during the game
pathCreator.pathUpdated += OnPathChanged;
}
}
void Update()
{
if (pathCreator != null)
{
distanceTravelled += speed * Time.deltaTime;
transform.position = pathCreator.path.GetPointAtDistance(distanceTravelled, endOfPathInstruction);
transform.rotation = pathCreator.path.GetRotationAtDistance(distanceTravelled, endOfPathInstruction);
}
}
// If the path changes during the game, update the distance travelled so that the follower's position on the new path
// is as close as possible to its position on the old path
void OnPathChanged() {
distanceTravelled = pathCreator.path.GetClosestDistanceAlongPath(transform.position);
}
}
}