Unet5Tut6Pt1HealthAndDamageV1

using UnityEngine;
using System.Collections;
using UnityEngine.Networking;

public class HealthAndDamage : NetworkBehaviour {
    [SyncVar(hook = "OnHealthChanged")]
    public int health;
    [SyncVar]
    Vector3 respawnPos;

    public override void OnStartLocalPlayer ()
    {
        CmdSetHealth(100);
    }

    [Command]
    void CmdSetHealth(int newHealth)
    {
        health = newHealth;
    }

    [Server]
    public void TakeDamage(GameObject fromPlayer)
    {
        health = Mathf.Max(health - 10, 0);

        if(health <= 0)
        {
            DoDeath();
        }
    }

    [Server]
    void DoDeath()
    {
        respawnPos = GetRandomSpawnPoint();
        RpcHandlePlayerDeath();
    }

    [Server]
    Vector3 GetRandomSpawnPoint()
    {
        var spawnPoints = NetworkManager.singleton.startPositions;
        return spawnPoints[Random.Range(0,spawnPoints.Count)].position;
    }

    [ClientRpc]
    void RpcHandlePlayerDeath()
    {
        if(isLocalPlayer)
        {
            transform.position = respawnPos;
            CmdSetHealth(100);
        }
    }


    void OnHealthChanged(int newHealth)
    {
        health = newHealth;

        if(health < 100)
        {
            StartCoroutine(ShowHitEffect());
        }

        if(isLocalPlayer)
        {
            HUD.instance.DisplayHealth(health);
        }
    }

    IEnumerator ShowHitEffect()
    {
        var material = GetComponent<Renderer>().material;
        Color savedColor = material.color;
        material.color = Color.yellow;
        yield return new WaitForSeconds(0.4f);
        material.color = savedColor;
    }
}