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using System.Collections;
using UnityEngine;
namespace Pathfinding.Examples {
using Pathfinding;
/// <summary>
/// Example of how to handle off-mesh link traversal.
/// This is used in the "Example4_Recast_Navmesh2" example scene.
///
/// See: <see cref="Pathfinding.RichAI"/>
/// See: <see cref="Pathfinding.RichAI.onTraverseOffMeshLink"/>
/// See: <see cref="Pathfinding.AnimationLink"/>
/// </summary>
[HelpURL("https://arongranberg.com/astar/documentation/stable/animationlinktraverser.html")]
public class AnimationLinkTraverser : VersionedMonoBehaviour {
public Animation anim;
RichAI ai;
void OnEnable () {
ai = GetComponent<RichAI>();
if (ai != null) ai.onTraverseOffMeshLink += TraverseOffMeshLink;
}
void OnDisable () {
if (ai != null) ai.onTraverseOffMeshLink -= TraverseOffMeshLink;
}
protected virtual IEnumerator TraverseOffMeshLink (RichSpecial rs) {
var link = rs.nodeLink.gameObject.GetComponent<AnimationLink>();
if (link == null) {
Debug.LogError("Unhandled RichSpecial");
yield break;
}
// Rotate character to face the correct direction
while (true) {
var origRotation = ai.rotation;
var finalRotation = ai.SimulateRotationTowards(rs.first.rotation * Vector3.forward, ai.rotationSpeed * Time.deltaTime);
// Rotate until the rotation does not change anymore
if (origRotation == finalRotation) break;
ai.FinalizeMovement(ai.position, finalRotation);
yield return null;
}
// Reposition
transform.parent.position = transform.position;
transform.parent.rotation = transform.rotation;
transform.localPosition = Vector3.zero;
transform.localRotation = Quaternion.identity;
// Set up animation speeds
if (rs.reverse && link.reverseAnim) {
anim[link.clip].speed = -link.animSpeed;
anim[link.clip].normalizedTime = 1;
anim.Play(link.clip);
anim.Sample();
} else {
anim[link.clip].speed = link.animSpeed;
anim.Rewind(link.clip);
anim.Play(link.clip);
}
// Fix required for animations in reverse direction
transform.parent.position -= transform.position-transform.parent.position;
// Wait for the animation to finish
yield return new WaitForSeconds(Mathf.Abs(anim[link.clip].length/link.animSpeed));
}
}
}
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