[ Intergrating life of player in each level in unity ]

In my game there are various levels I have made those level in separate scenes Every Scene has a player at the starting point and when it crosses the exit point the next level (next scene) is loaded but the health and life are reset as starting point in the game and not remain what the player currently has when he exited the level

Exit level Script:-

using UnityEngine;
using System.Collections;

public class ExitLevel : MonoBehaviour {

    public string scene;
    private Player player;



    // Use this for initialization
    void Start () {
        player = GameObject.Find ("Player").GetComponent<Player> ();
    }


    // Update is called once per frame
    void Update () {

    }

    void OnTriggerEnter2D(Collider2D target){

                        if (target.gameObject.tag == "Player") {
            if (player.ArtifactCount == 1) {
                player.ArtifactCount = 0;
                                Destroy (target.gameObject);
                                Application.LoadLevel (scene);
                        }
                }
    }
}

LifeMeter Script:-

using UnityEngine;
using System.Collections;

public class LifeMeter : MonoBehaviour {

    public float Life = 100;
    public float maxLife = 100;
    public float LifeBurnRate = 1f;
    public Texture2D bgTexture;
    public Texture2D LifeBarTexture;
    public Texture2D HeartTexture;
    public int iconWidth = 32;
    public Vector2 LifeOffset = new Vector2(255, 10);
    public int HeartCount = 3;
    public Vector2 HeartOffset = new Vector2(455, 6.5f);
    public int HeartDistance = 0;
    public int HeartDistanceAddup = 40;
    public int HeartDisplayWidth = 40;
    public int HeartDisplayHeight = 40;


    private Player player;
    private ExitLevel exitLevel;


    // Use this for initialization
    void Start () {
        player = GameObject.FindObjectOfType<Player> ();
    }

    public void OnGUI(){
        var percent = Mathf.Clamp01 (Life / maxLife);

        if (!player) 
                percent = 0;

        if(Life == 0 && HeartCount !=0 ){
            HeartCount = HeartCount - 1;
            Life = 100;
        }
        HeartDistance = 0;
        DrawMeter (LifeOffset.x, LifeOffset.y, LifeBarTexture, bgTexture, percent);

        for (int i = 0; HeartCount > i; i++) {
            HeartDistance = HeartDistance + HeartDistanceAddup;
            GUI.DrawTexture (new Rect (HeartOffset.x + HeartDistance, HeartOffset.y, HeartDisplayWidth, HeartDisplayHeight), HeartTexture);
                }
    }

    void DrawMeter(float x, float y, Texture2D texture, Texture2D background, float percent){
        var bgW = background.width;
        var bgH = background.height;

        GUI.DrawTexture (new Rect (x, y, bgW, bgH), background);

        var nW = ((bgW - iconWidth) * percent) + iconWidth;

        GUI.BeginGroup (new Rect (x, y, nW, bgH));
        GUI.DrawTexture (new Rect (0, 0, bgW, bgH), texture);
        GUI.EndGroup ();



    }

    // Update is called once per frame
     void Update () {

        }


    public void life(){
    Life = Life - LifeBurnRate;

        if (HeartCount == 0) {
            {   Explode script = player.GetComponent<Explode> ();
        script.OnExplode ();
            }
        }

    }
}

Answer 1

you can use PlayerPrefs (Stores and accesses player preferences between game sessions)for save current status of Player. Reffer this link http://docs.unity3d.com/ScriptReference/PlayerPrefs.html

Answer 2

There are two ways to proceed in the above case:

• You can add DontDestroyOnload(this); to your player object. This will not destroy that game object when the new level loads. And On Every start of level you can spawn him your level start point. This way your player's stats will remain consistent throughout the game.

• You can use a static class to get the players health and other required stats. Save the players health in the static class while exiting the level and apply the values to the next levels player object when the next level loads.