Sync Tutorial - Further Programming Player Movement

Now we are going to further edit our ShipMovement.cs. 

Add this code into your Ship Movement.cs.

function ShipMovementBehavior::onBehaviorAdd(%this)
{
   if (!isObject(moveMap))
      return;
  
   %this.owner.enableUpdateCallback();
   %this.owner.setDamping(%this.damping);
  
   moveMap.bindObj(getWord(%this.upKey, 0), getWord(%this.upKey, 1), "moveUp", %this);
   moveMap.bindObj(getWord(%this.downKey, 0), getWord(%this.downKey, 1), "moveDown", %this);
   moveMap.bindObj(getWord(%this.leftKey, 0), getWord(%this.leftKey, 1), "moveLeft", %this);
   moveMap.bindObj(getWord(%this.rightKey, 0), getWord(%this.rightKey, 1), "moveRight", %this);
  
   %this.up = 0;
   %this.down = 0;
   %this.left = 0;
   %this.right = 0;
}

function ShipMovementBehavior::onBehaviorRemove(%this)
{
   if (!isObject(moveMap))
      return;

   %this.owner.disableUpdateCallback();
  
   moveMap.unbindObj(getWord(%this.upKey, 0), getWord(%this.upKey, 1), %this);
   moveMap.unbindObj(getWord(%this.downKey, 0), getWord(%this.downKey, 1), %this);
   moveMap.unbindObj(getWord(%this.leftKey, 0), getWord(%this.leftKey, 1), %this);
   moveMap.unbindObj(getWord(%this.rightKey, 0), getWord(%this.rightKey, 1), %this);
  
   %this.up = 0;
   %this.down = 0;
   %this.left = 0;
   %this.right = 0;
}


function ShipMovementBehavior::moveUp(%this, %val)
{
   %this.up = %val;
}

function ShipMovementBehavior::moveDown(%this, %val)
{
   %this.down = %val;
}

function ShipMovementBehavior::moveLeft(%this, %val)
{
   %this.left = %val;
}

function ShipMovementBehavior::moveRight(%this, %val)
{
   %this.right = %val;
}

This code sets variables in the game engine which happen when the player presses a key. We are going to use these variables to tell the player’s ship what to do.

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