player object undefined only in update()ƒ

not exactly sure what to call whats going on. I need to create a definition for the clients main player physics body and i can’t read it or any of its properties, no matter where or how i call it, from update(). Also if this is a bit hard to understand Im a young and new JS programmer so bare with me. Im willing to change the construction of my scenes if i need to if anyone recommends something easier.

class MainScene extends Phaser.Scene {
constructor() {
  super({ key: 'MainScene' })
}

preload() {
    this.load.image('grass','./assets/map.png',);
    this.load.spritesheet('graf', './assets/wang.png', { frameWidth: 200, frameHeight: 170})
  }

create() {
  this.add.image(100,400,'grass');
  this.playerMap = {};
  Client.askNewPlayer();
  window.myScene = this;
  this.body  = this.matter.bodies.circle(
      1,
      1,
      10,
      {
          isSensor: true
      }
      );
}
addNewPlayer(id, x, y) {
    if(id == clientID){
        this.playerMap[id] = this.matter.add.sprite(x, y, 'graf','', {'shape' : this.body['player-20-00']}).setScale(.5);
        this.player = this.playerMap[id];
        this.cameras.main.centerOn(this.player.x, this.player.y)
    }
    else{
    this.playerMap[id] = this.add.sprite(x,y,'graf').setScale(.5);
    }
}
removePlayer(id){
    this.playerMap[id].destroy();
delete this.playerMap[id];
}
movePlayer(id, x, y) {       
    // var player = this.playerMap[id];
    // var distance = Phaser.Math.Distance.Between(player.x,player.y,x,y);
    // var duration = distance*10;
    // var tween = this.add.tween(player);
    // tween.to({x:x,y:y}, duration);
    // tween.start();
    
}
cameraOn(){
    this.cameras.main.centerOn(this.player.x, this.player.y) 
}
update(){
   //haven't been able to access any variables Ive called from here
}

}