SetDestination

Learn to walk to a target with SetDestination.

Moving to Destination with SetDestination

To instruct an agent to navigate toward a 3D coordinate, agent.SetDestination(targetPosition) is invoked. The agent computes the optimal path and begins movement.

using UnityEngine.AI;

public class Chaser : MonoBehaviour {
    public Transform target;
    private NavMeshAgent agent;

    void Update() {
        agent.SetDestination(target.position);
    }
}

As the target displaces (such as a running player), re-issuing the destination updates the pursuit trajectory.

Arrival Check and remainingDistance

To verify whether the agent reached its objective, the agent.remainingDistance property is evaluated against stoppingDistance.

if (!agent.pathPending && agent.remainingDistance <= agent.stoppingDistance) {
    // Destination reached
    Debug.Log("Hedefe ulasildi");
}

Checking agent.pathPending ensures the path is fully resolved before evaluating arrival distance.

Exercise Target distance check

Define a Start method. Inside, declare float kalanMesafe = 0.5f; and print "Kalan mesafe: " + kalanMesafe to the console.

Show example solution

using UnityEngine;

public class DestinationTester : MonoBehaviour
{
    void Start()
    {
        float kalanMesafe = 0.5f;
        Debug.Log("Kalan mesafe: " + kalanMesafe);
    }
}

Test yourself

Which method assigns a new 3D target coordinate to a NavMeshAgent to initiate navigation?
- agent.SetDestination(target)
- agent.MoveInstantly(target)
- agent.TeleportTo(target)
- agent.JumpToPath(target)
Show answer

agent.SetDestination(target) — The SetDestination method calculates a path across the NavMesh toward the supplied Vector3 position and begins traversal.

Set target destination

agent.____(target.position);

Show answer

agent.SetDestination(target.position);

Navigation tracking properties

SetDestination

Sets destination and calculates path
remainingDistance

Remaining distance to destination
pathPending

Whether path is being computed
hasPath

Whether the agent has an active path

Next lesson: Behavior tree basics

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