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Assets/Mirror/Examples/Tanks/Scripts/Tank.cs

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+using UnityEngine;
+using UnityEngine.AI;
+
+namespace Mirror.Examples.Tanks
+{
+    public class Tank : NetworkBehaviour
+    {
+        [Header("Components")]
+        public NavMeshAgent agent;
+        public Animator  animator;
+        public TextMesh  healthBar;
+        public Transform turret;
+
+        [Header("Movement")]
+        public float rotationSpeed = 100;
+
+        [Header("Firing")]
+        public KeyCode shootKey = KeyCode.Space;
+        public GameObject projectilePrefab;
+        public Transform  projectileMount;
+
+        [Header("Stats")]
+        [SyncVar] public int health = 5;
+
+        // naming for easier debugging
+        public override void OnStartClient()
+        {
+            name = $"Player[{netId}|{(isLocalPlayer ? "local" : "remote")}]";
+        }
+
+        public override void OnStartServer()
+        {
+            name = $"Player[{netId}|server]";
+        }
+
+        void Update()
+        {
+            // always update health bar.
+            // (SyncVar hook would only update on clients, not on server)
+            healthBar.text = new string('-', health);
+
+            // take input from focused window only
+            if(!Application.isFocused) return;
+
+            // movement for local player
+            if (isLocalPlayer)
+            {
+                // rotate
+                float horizontal = Input.GetAxis("Horizontal");
+                transform.Rotate(0, horizontal * rotationSpeed * Time.deltaTime, 0);
+
+                // move
+                float vertical = Input.GetAxis("Vertical");
+                Vector3 forward = transform.TransformDirection(Vector3.forward);
+                agent.velocity = forward * Mathf.Max(vertical, 0) * agent.speed;
+                animator.SetBool("Moving", agent.velocity != Vector3.zero);
+
+                // shoot
+                if (Input.GetKeyDown(shootKey))
+                {
+                    CmdFire();
+                }
+
+                RotateTurret();
+            }
+        }
+
+        // this is called on the server
+        [Command]
+        void CmdFire()
+        {
+            GameObject projectile = Instantiate(projectilePrefab, projectileMount.position, projectileMount.rotation);
+            NetworkServer.Spawn(projectile);
+            RpcOnFire();
+        }
+
+        // this is called on the tank that fired for all observers
+        [ClientRpc]
+        void RpcOnFire()
+        {
+            animator.SetTrigger("Shoot");
+        }
+
+        //[ServerCallback]
+        //void OnTriggerEnter(Collider other)
+        //{
+        //    if (other.GetComponent<Projectile>() != null)
+        //    {
+        //        --health;
+        //        if (health == 0)
+        //            NetworkServer.Destroy(gameObject);
+        //    }
+        //}
+
+        void RotateTurret()
+        {
+            Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
+            if (Physics.Raycast(ray, out RaycastHit hit, 100))
+            {
+                Debug.DrawLine(ray.origin, hit.point);
+                Vector3 lookRotation = new Vector3(hit.point.x, turret.transform.position.y, hit.point.z);
+                turret.transform.LookAt(lookRotation);
+            }
+        }
+    }
+}