----------------- Part 4 - Section 1 ----------------- 

Code Sample 4.1.1

"
function fishPlayerLeft()
{
   $FishPlayer.setLinearVelocityX( -30 );
}
"




Code Sample 4.1.2

"
function fishPlayerLeft()
{
   $FishPlayer.setFlipX(false);
   $FishPlayer.setLinearVelocityX( -30 );
}
"




Code Sample 4.1.3

"
function fishPlayerRight()
{
   $FishPlayer.setFlipX(true);
   $FishPlayer.setLinearVelocityX( 30 );
}
"




----------------- Part 4 - Section 2 ----------------- 

Code Sample 4.2.1

"
function fishPlayerLeft()
{
   $FishPlayer.setFlipX(false);
   $FishPlayer.setLinearVelocityX( -$FishPlayer.hSpeed );
}
"




Code Sample 4.2.2

"
function fishPlayerUp()
{
   $FishPlayer.setLinearVelocityY( -$FishPlayer.vSpeed );
}

function fishPlayerDown()
{
   $FishPlayer.setLinearVelocityY( $FishPlayer.vSpeed );
}

function fishPlayerRight()
{
   $FishPlayer.setFlipX(true);
   $FishPlayer.setLinearVelocityX( $FishPlayer.hSpeed );
}
"




----------------- Part 4 - Section 3 ----------------- 

Code Sample 4.3.1

"
function PlayerFish::onLevelLoaded(%this, %scenegraph)
{
   $FishPlayer = %this;

   moveMap.bindCmd(keyboard, "w", "fishPlayerUp();", "fishPlayerUpStop();");
   moveMap.bindCmd(keyboard, "s", "fishPlayerDown();", "fishPlayerDownStop();");
   moveMap.bindCmd(keyboard, "a", "fishPlayerLeft();", "fishPlayerLeftStop();");
   moveMap.bindCmd(keyboard, "d", "fishPlayerRight();", "fishPlayerRightStop();");
}
"




Code Sample 4.3.2

"
   moveMap.bindCmd(keyboard, "space", "fishPlayerBoost();", "fishPlayerBoostStop();");
"




Code Sample 4.3.3

"
function fishPlayerBoost()
{
   %flipX = $FishPlayer.getFlipX();

   if(%flipX)
   {
      %hSpeed = $FishPlayer.hSpeed * 3;
   } else
   {
      %hSpeed = -$FishPlayer.hSpeed * 3;
   }

   $FishPlayer.setLinearVelocityX(%hSpeed);
}
"




Code Sample 4.3.4

"
function fishPlayerBoostStop()
{
   $FishPlayer.setLinearVelocityX(0);
}
"




----------------- Part 4 - Section 4 ----------------- 

Code Sample 4.4.1

"
function PlayerFish::updateMovement(%this)
{
   if(%this.moveLeft)
   {
      $FishPlayer.setFlipX(false);
      $FishPlayer.setLinearVelocityX( -$FishPlayer.hSpeed );
   }

   if(%this.moveRight)
   {
      $FishPlayer.setFlipX(true);
      $FishPlayer.setLinearVelocityX( $FishPlayer.hSpeed );
   }   
   
   if(%this.moveUp)
   {
      %this.setLinearVelocityY( -$FishPlayer.vSpeed );
   }

   if(%this.moveDown)
   {
      %this.setLinearVelocityY( $FishPlayer.vSpeed );
   }

   if(!%this.moveLeft && !%this.moveRight)
   {
      %this.setLinearVelocityX( 0 );
   } 

   if(!%this.moveUp && !%this.moveDown)
   {
      %this.setLinearVelocityY( 0 );
   } 
}
"




Code Sample 4.4.2

"
function PlayerFish::updateMovement(%this)
{
   if(%this.moveLeft)
   {
      $FishPlayer.setFlipX(false);
      $FishPlayer.setLinearVelocityX( -$FishPlayer.hSpeed );
   }
"




Code Sample 4.4.3

"
   if(!%this.moveLeft && !%this.moveRight)
   {
      %this.setLinearVelocityX( 0 );
   } 

   if(!%this.moveUp && !%this.moveDown)
   {
      %this.setLinearVelocityY( 0 );
   } 
"




Code Sample 4.4.4

"
function fishPlayerUp()
{
   $FishPlayer.moveUp = true;
   $FishPlayer.updateMovement();
}

function fishPlayerDown()
{
   $FishPlayer.moveDown = true;
   $FishPlayer.updateMovement();
}

function fishPlayerLeft()
{
   $FishPlayer.moveLeft = true;
   $FishPlayer.updateMovement();
}

function fishPlayerRight()
{
   $FishPlayer.moveRight = true;
   $FishPlayer.updateMovement();
}

function fishPlayerUpStop()
{
   $FishPlayer.moveUp = false;
   $FishPlayer.updateMovement();
}

function fishPlayerDownStop()
{
   $FishPlayer.moveDown = false;
   $FishPlayer.updateMovement();
}
function fishPlayerLeftStop()
{
   $FishPlayer.moveLeft = false;
   $FishPlayer.updateMovement();
}

function fishPlayerRightStop()
{
   $FishPlayer.moveRight = false;
   $FishPlayer.updateMovement();
}
"