----------------- Part 3 - Section 2 ----------------- 


Code Sample 3.2.1

"
function playerShip::onLevelLoaded(%this, %scenegraph)
{
    //set the player's ship name to the instance
   $pShip = %this;

   moveMap.bindCmd(keyboard, "w", "pShipUp();", "pShipUpStop();");
   moveMap.bindCmd(keyboard, "s", "pShipDown();", "pShipDownStop();");
   moveMap.bindCmd(keyboard, "a", "pShipLeft();", "pShipLeftStop();");
   moveMap.bindCmd(keyboard, "d", "pShipRight();", "pShipRightStop();");
}
"




Code Sample 3.2.2

"
function pShipUp()
{
    $pShip.moveUp = true;
    $pShip.updateMovement();
}

function pShipDown()
{
    $pShip.moveDown = true;
    $pShip.updateMovement();
}

function pShipLeft()
{
    $pShip.moveLeft = true;
    $pShip.updateMovement();
}

function pShipRight()
{
    $pShip.moveRight = true;
    $pShip.updateMovement();
}

function pShipLeftStop()
{   
    $pShip.moveLeft = false;
    $pShip.updateMovement();
}

function pShipRightStop()
{
    $pShip.moveRight = false;
    $pShip.updateMovement();
}

function pShipUpStop()
{
    $pShip.moveUp = false;
    $pShip.updateMovement();
}

function pShipDownStop()
{
    $pShip.moveDown = false;
    $pShip.updateMovement();
}
"




Code Sample 3.2.3

"
function playerShip::updateMovement(%this)
{
    if(%this.moveLeft)
    {
      %this.setLinearVelocityX( -$pShip.hSpeed );
    }

    if(%this.moveRight)
    {
       %this.setLinearVelocityX( $pShip.hSpeed );
    }
    if(%this.moveUp)
    {
        %this.setLinearVelocityY( -$pShip.vSpeed );
    }
    if(%this.moveDown)
    {
        %this.setLinearVelocityY( $pShip.vSpeed );
    }
    if(!%this.moveLeft && !%this.moveRight)
    {
        %this.setLinearVelocityX( 0 );
    }
    if(!%this.moveUp && !%this.moveDown)
    {
        %this.setLinearVelocityY( 0 );
    }
}
"




Code Sample 3.2.4

"
exec(“./player.cs”);
"




Code Sample 3.2.5

"
 %this.setLinearVelocityX( $pShip.hSpeed );
 %this.setLinearVelocityY( -$pShip.vSpeed );
"