c# - Make my counter score save highest score even after app closes -

so making rocket app, still development. wrote code counts score when collide objects. how make saves highest score , can display it? leave scene sets score 0 :( please thank you!

using unityengine; using unityengine.ui; using system.collections;  public class points1 : monobehaviour {  public text counttext; public text wintext;   private rigidbody rb; private int count;  void start() {     rb = getcomponent<rigidbody>();     count = 0;     setcounttext();     wintext.text = ""; }   void ontriggerenter(collider other) {     if (other.gameobject.comparetag("pickup"))     {         other.gameobject.setactive(false);         count = count + 100;         setcounttext();     }     if (other.gameobject.comparetag("minus300"))     {         other.gameobject.setactive(false);         count = count -300;         setcounttext();     } }  void setcounttext() {         counttext.text = "score: " + count.tostring();         if (count >= 5000)         {             wintext.text = "good job!";         }     }    } 

edit: tried code kindly provided, doing wrong? doesn't work... think might need gui element display highest score.

using unityengine; using unityengine.ui; using system.collections;  public class points1 : monobehaviour {  public text counttext; public text wintext;   private rigidbody rb; private int count;   void start() { rb = getcomponent<rigidbody>(); count = 0; setcounttext(); wintext.text = ""; }    void ontriggerenter(collider other) { if (other.gameobject.comparetag("pickup")) {     other.gameobject.setactive(false);     count = count + 100;     setcounttext(); } if (other.gameobject.comparetag("minus300")) {     other.gameobject.setactive(false);     count = count -300;     setcounttext();  } }  void setcounttext() { playerprefs.setint("score", count); playerprefs.save(); count = playerprefs.getint("score", 0); counttext.text = "score: " + count.tostring();     if (count >= 5000)     {         wintext.text = "good job!";     } }   } //playerprefs.setint("score", count);   //playerprefs.save(); //count = playerprefs.getint("score", 0); 

what want playerprefs class. playerprefs allows store data between sessions of game.

you can save data calling playerprefs.set supported data type (int, float or string), , using corresponding playerprefs.get.

for example, if want save score, can so.

playerprefs.setint("score", count);   playerprefs.save(); 

and

count = playerprefs.getint("score", 0);