Week 5 Workshop - Pong Part1

This exercise would use the code done yesterday and develop it into a simple Pong game.
Using the existing files on last workshop:    pong.fla & main.as
Change:  width*height: 1024*768       frame rate(fps) : 25
Create: player class: 'player.as'

define the player's width and height

 public var playerWidth: Number = 30;  
 public var playerHeight: Number = 100;   

provide the value for xPosition and yPosition and set player on stage

 //position the player on the stage  
 this.x = xPosition;  
 this.y = yPosition;  

draw player (player.as part)

 this.drawPlayer();  

...

 public function drawPlayer() {  
      // draw the player on the stage by filling a rectangle  
      this.graphics.beginFill(0x452506, 1);  
      this.graphics.drawRect  
      (  
        0-this.playerWidth/2,  
        0-this.playerHeight/2,  
        this.playerWidth,  
        this.playerHeight  
      );  
}  

add player to the stage (main.as part)

 var player1;  
 var player2;  
 ...  
 player1 = new player(num, num);  
 player2 = new player(num, num);  
 stage.addChild(player1);  
 stage.addChild(player2);  

in the player class, add two functions to get the player's current position and get the player's moved position

 public function setY(newY)  
   {  
    //set a new Y position for the player  
    this.y = newY;  
   }  
   public function getY()  
   {  
    //return the current y value for the player  
    return this.y;  
   }  

set the keypress event in main.as

 import flash.events.*;  
 ...  
 stage.addEventListener(Keyboard.KEY_DOWN, movePlayer);  

set the key pressed movement of player1 and player2

   public function movePlayer(e: KeyboardEvent) {  
    //get the key pressed and then move the player  
    var speed = 8;  
    switch (e.keyCode) {  
     case 87:  
      // W pressed and player 1 moves up  
      player1.setY(player1.getY() - speed);  
      break;  
     case 83:  
      // S pressed and player 1 moves down  
      player1.setY(player1.getY() + speed);  
      break;  
     case 38:  
      // Up pressed and player 2 moves up  
      player2.setY(player2.getY() - speed);  
      break;  
     case 40:  
      // Down pressed and player 2 moves down  
      player2.setY(player2.getY() + speed);  
      break;  
     default:  
      trace('Invalid key pressed')  
      break;  
    }  

The rest of the code might not be recorded simultaneously but would be done at spare time.