State Machine Presentation62 End

public class Creature
{
private var amIdead : Boolean;
private var doIHaveDelbruckBrain :
Boolean;
private var doIHaveVictorBrain :
Boolean;

public function Creature()
{
trace(“Ecce Creature”);
amIdead = true;
}
Thursday, March 18, 2010

public function implant( b : Brain )
{
mybrain = b;
if( mybrain == DELBRUCK_BRAIN )
// how??
{
doIHaveDelbruckBrain = true;
doIHaveVictorBrain = false;
}
else if( mybrain == VICTOR_BRAIN )
// again -- how??
{
doIHaveDelbruckBrain = false;
doIHaveVictorBrain = true;
}

}
else if( mybrain == VICTOR_BRAIN )
// again -- how??
{
doIHaveVictorBrain = true;
}
else
{
}
}


}

public function talk()
{
if( amIdead )
{
// DO NOTHING -- I’M DEAD
}
else
{
if( doIHaveDelbruckBrain )
{
trace(“Listen to this...”);
trace(“the secrets of
eternity”);

if( doIHaveDelbruckBrain )
{
trace(“Listen to this...”);
trace(“the secrets of
eternity”);
}
else if( doIHaveVictorBrain )
{
trace(“The operation...”);
trace(“...did it work?”);
}
else
{
trace(“UNNNNNNNH”);
}

{
private var mybrain : Brain;

{
}

public function zap() {}

public function walk() {}

{
}

public function zap() {}

public function walk() {}

public function talk() {}
}


public class Brain
{

public function zap(){}

public function talk(){}

public function walk(){}

}


public class DeadDelbruckBrain extends
Brain
{




}


{
private var mybrain : Brain;

{
this.implant( new DeadDelbruckBrain());
}

public function zap()
{
mybrain.zap();
}

}

{
mybrain.zap();
}

public function walk()
{
mybrain.walk();
}
{
mybrain.talk();
}
}

{
private var deadDelbruckBrain : DeadDelbruckBrain;

private var livingDelbruckBrain : LivingDelbruckBrain;

{

deadDelbruckBrain = new DeadDelbrookBrain();
livingDelbruckBrain = new LivingDelbrookBrain();

this.implant( deadDelbruckBrain );
}


}

{
mybrain.zap();
}

{
mybrain.walk();
}
{
mybrain.talk();
}
}

public class DeadDelbruckBrain extends
Brain
{

{

mycreature.implant(
mycreature.livingDelbruckBrain );

}


{
public var deadDelbruckBrain : DeadDelbruckBrain;

public var livingDelbruckBrain : LivingDelbruckBrain;

{

deadDelbruckBrain = new DeadDelbrookBrain();
livingDelbruckBrain = new LivingDelbrookBrain();

}


public var deadDelbruckBrain : DeadDelbruckBrain;

public var livingDelbruckBrain : LivingDelbruckBrain;

{

deadDelbruckBrain = new DeadDelbrookBrain( this );
livingDelbruckBrain = new
LivingDelbrookBrain( this );

}

{
mybrain.zap();
}

public class Brain
{
public var mycreature : Creature;

public function Brain( somecreature :
Creature )
{
mycreature = somecreature;
}


...

{

mycreature.implant(
mycreature.livingDelbruckBrain );

}
...


public class DeadAbnormalBrain extends
Brain
{




}


public class LivingAbnormalBrain extends
Brain
{




}


...

{

mycreature.implant(
mycreature.livingAbnormalBrain );

}
...


...

public function eatSoup()
{
...
}
...


...

public function smokeCigar()
{
...
}
...


...

public function sing()
{
...
}
...


public class HybridVictorAndAbnormalBrain
extends Brain
{

...

}


extends Brain
{

private var percentageVictor : int;

public function setVictorPercentage
( p : int )
{
percentageVictor = p;
}


extends Brain
{

...

public function talk( )
{
if( percentageVictor > 50 )
{
...


Template Method
Pattern


public class Brain
{
...
{
stepWithLeftFoot();
stepWithRightFoot();
}
...
}


public class Brain
{
...
public function stepWithLeftFoot()
{

}

public function stepWithRightFoot()
{

}
...
}


public class OneLeggedBrain
{
...
override public function walk()
{
//stepWithLeftFoot();
stepWithRightFoot();
}
...
}


public class RogerCobbBrain extends Brain
{
...
override public function stepWithLeftFoot()
{
leftFootPosition += strideLength;
}

override public function stepWithRightFoot()
{
rightFootPosition += strideLength;
}
...
}


public class EdwinaBrain extends Brain
{
...
{
leftFootPosition += strideLength;
}

{
rightFootPosition += strideLength;
}
...
}


{
...
{
leftFootPosition += strideLength * 2;
}

{
rightFootPosition += strideLength * 2;
}
...
}


{
...
public function EdwinaBrain()
{
strideLength = 12;
rightStrideLength = 24;
}

{
rightFootPosition += rightStrideLength;
}
...
}


public class TwoBrainedCreature
{
...
public var rightBrain : RightBrain;
public var leftBrain : LeftBrain;
...
}


Many brains
in one creature.


public class TwoBrainedCreature
{
...
{
rightBrain.stepWithLeftFoot();
leftBrain.stepWithRightFoot();
}
...
}


One kind of brain,
many kinds of creatures.


public class World
{
public function World()
{
var neo : Hero = new Hero();
var shopper : NormalPerson = new NormalPerson();

var agentOne = new SmithBrain();
var agentTwo = new SmithBrain();

neo.implant( agentOne );
shopper.implant( agentTwo );

}
}


One actual brain,
many creatures.


public class World
{
public function World()
{

agentSmithBrain = new AgentSmithBrain();

var neo : Creature = new Creature();
var shopper : Creature = new Creature();

neo.implant( agentSmithBrain );
shopper.implant( agentSmithBrain );

}
}


Dependency Injection


Actual Example


One Word:


Brains.


State Machine Presentation62 End

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State Machine Presentation62 End