Cohesion of methods and classes...(Game class 1)

[Dököll]

/**
* @3rd Annual Bahamas Pelletier School Food-a-thon and Gaming Session
* @programmer Dököll
* @version 2007.12.9
*/

[CODE=JAVA]

public class Game
{
private Parser parser;
private Room currentRoom;
private Food currentFood;
private Eat currentEat;
private View currentView;




/**
* Print out the opening message for the player.
* This can be used ofr user instructions
*/
private void printWelcome()
{
System.out.prin tln();
System.out.prin tln("Welcome to the 3rd Annual Bahamas Pelletier School Food-a-thon and Gaming Session!");
System.out.prin tln("The Bahamas Pelletier School Food-a-thon proudly presents FREE food for all after the game.");
System.out.prin tln("You have 4 options in this game. Please do one option at a time.");
System.out.prin tln("First option deals with areas of a certain school establishment." );
System.out.prin tln("After looking aroung the establishment, take a look in the lounge refrigerator for treats.");
System.out.prin tln("Take a closer view of the types of food inlcuded in this now, wonderful fridge of yours.");
System.out.prin tln("Be sure to make use of the free food, then you can go home. How's that for a deal?.");
System.out.prin tln();
System.out.prin tln("Your key verbs are 'go' for first option, 'look' for second, 'view' for third," + "\n" + "and 'eat' for last option in the game");
System.out.prin tln();
System.out.prin tln("Type 'help' if you need help.");
System.out.prin tln("Type 'quit' if you need to end the game.");
System.out.prin tln();
System.out.prin tln("Let us begin!");
System.out.prin tln();
System.out.prin tln("You can type 'go' then the posted Exit to visit the school establishment." + "\n" + currentRoom.get LongDescription ());
System.out.prin tln();
System.out.prin tln("Now, type 'look' then the posted Exit to have a look around." + "\n" + currentFood.get LongDescription ());
System.out.prin tln();
System.out.prin tln("Type 'view' then the posted Exit to look inside the fridge." + "\n" + currentView.get LongDescription ());
System.out.prin tln();
System.out.prin tln("Now that you've seen it all, type 'eat' then the posted Exit to have fun with free meals." + "\n" + currentEat.getL ongDescription( ));


}



/**
* Create the game and initialise its internal map.
* Create 4 items for the game, 4 different classes.
*/
public Game()
{
createRooms();
createFoods();
createEats();
createViews();
parser = new Parser();
}

/**
* Create all the rooms and link their exits together.
* Create specific subclasses for each item in each class.
*/
private void createRooms()
{
Room outside, theatre, pub, lab, office, dorm;

// create the rooms
outside = new Room("outside of the theatre and looking at a 1300 penny");
theatre = new Room("given free concert tickets and invited to a rare event with friends");
pub = new Room("in a local pub and having the soda pop of the year");
lab = new Room("saving this mouse from the lab");
office = new Room("in your office and you're not allowed to take paper clips");
dorm = new Room("outside your dorm and has been awarded with a purple candy bar");

// initialise room exits
outside.setExit ("west", theatre);

theatre.setExit ("north", pub);

pub.setExit("ea st", lab);

lab.setExit("so uth", dorm);

office.setExit( "north", office);

dorm.setExit("w est", outside);

currentRoom = lab; // start game in the lab
}

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[Dököll]

/**
* Create all the foods and link their exits together.
* Create specific subclasses for each item in each class.
*/


[CODE=JAVA]
private void createFoods()
{
Food veggies, rice, beans, soymilk, soysages, soup;

// create the foodgroupss
veggies = new Food("a piece of pita and are no longer hungry, now looking");
rice = new Food("a bowl of pasta and are no longer hungry, now looking");
beans = new Food("some grape leaves and are no longer hungry, now looking");
soymilk = new Food("a small amount of hummus and crakers and are no longer hungry, now looking");
soysages = new Food("a bowl of soycream and are no longer hungry, now looking");
soup = new Food("some tofu scambled and are no longer hungry, now looking");

// initialise room exits
veggies.setExit ("down", soymilk);

rice.setExit("u p", soup);

beans.setExit(" left", soysages);

soymilk.setExit ("right", rice);

soysages.setExi t("straight", veggies);

soup.setExit("i n", beans);



currentFood = beans; // start looking at beans
}

/**
* Create all the views and link their exits together.
* Create specific subclasses for each item in each class.
*/
private void createViews()
{
View bottom, top, left, right, middle, back;

//create the views
bottom = new View("the remnants of the pita");
top = new View("an empty small pasta bowl");
left = new View("the remains of grape leaves");
right = new View("the remnants of the hummus and crakers");
middle = new View("an empty container of soycream");
back = new View("the remains of yesterday's tofu scrambled");

// initialise room exits
bottom.setExit( "beneath", top);

top.setExit("in side", middle);

left.setExit("o utside", right);

right.setExit(" atop", bottom);

middle.setExit( "nearby", top);

back.setExit("u nder", right);

currentView = top; // start viewing on top
}


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[Dököll]

/**
* Create all the treats and link their exits together.
* Create specific subclasses for each item in each class.
*/

[CODE=JAVA]
private void createEats()
{
Eat granola, pasta, leaves, hummus, soycream, tofu;

// create these treats
granola = new Eat("a piece of pita but still you are still hungry! Now looking");
pasta = new Eat("a bowl of pasta but still you are still hungry! Now looking");
leaves = new Eat("some grape leaves but still you are still hungry! Now looking");
hummus = new Eat("a small amount of hummus and crakers but still you are still hungry! Now looking");
soycream = new Eat("a bowl of soycream but still you are still hungry! Now looking");
tofu = new Eat("some tofu scambled but still you are still hungry! Now looking");

//initialise eats exits
granola.setExit ("northeast" , pasta);

pasta.setExit(" northwest", granola);

leaves.setExit( "southwest" , leaves);

hummus.setExit( "southeast" , pasta);

soycream.setExi t("midesat", granola);

tofu.setExit("m idwest", leaves);



currentEat = granola; // start eating a granola bar
}


/**
* Main play routine. Loops until end of play.
*/
public void play()
{
printWelcome();

// Enter the main command loop. Here we repeatedly read commands and
// execute them until the game is over.

boolean finished = false;
while (! finished) {
Command command = parser.getComma nd();
finished = processCommand( command);
}
System.out.prin tln("Thank you for playing. Good bye.");
}


/**
* Given a command, process (that is: execute) the command.
* @param command The command to be processed.
* @return true If the command ends the game, false otherwise.
*/
private boolean processCommand( Command command)
{
boolean wantToQuit = false;

if(command.isUn known()) {
System.out.prin tln("I don't know what you mean...");
return false;
}

String commandWord = command.getComm andWord();
if (commandWord.eq uals("help")) {
printHelp();
}
else if (commandWord.eq uals("go")) {
goRoom(command) ;
}


else if (commandWord.eq uals("eat")) {
goEat(command);

}


else if (commandWord.eq uals("view")) {
goView(command) ;

}


else if (commandWord.eq uals("look")) {
goFood(command) ;
}
else if (commandWord.eq uals("quit")) {
wantToQuit = quit(command);
}


// else command not recognised.
return wantToQuit;
}


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[Dököll]

// implementations of user commands:

/**
* Print out some help information.
* Here we print some stupid, cryptic message and a list of the
* command words.
*/

[CODE=JAVA]

private void printHelp()
{
System.out.prin tln("You are lost. You are alone. You wander");
System.out.prin tln("around at the university.");
System.out.prin tln();
System.out.prin tln("Your command words are:");
parser.showComm ands();
}

/**
* Try to go to one direction. If there is an exit, enter the new
* room, otherwise print an error message.
*/
private void goRoom(Command command)
{
if(!command.has SecondWord()) {
// if there is no second word, we don't know where to go...
// user must type the direction to go after typing in 'go'...
System.out.prin tln("Go where?");
return;
}

String direction = command.getSeco ndWord();

// Try to leave current room.
Room nextRoom = currentRoom.get Exit(direction) ;

if (nextRoom == null) {
System.out.prin tln("There is no door!");
}
else {
currentRoom = nextRoom;
System.out.prin tln(currentRoom .getLongDescrip tion());
}


}


/**
* Try to go to one direction. If there is an exit, enter the new
* room, otherwise print an error message.
*/
private void goEat(Command command)
{
if(!command.has SecondWord()) {
// if there is no second word, we don't know where to go...
// user must type the direction to go after typing in 'eat'...
System.out.prin tln("Eat what?");
return;
}

String direction = command.getSeco ndWord();

// Go ahead, try another type of food.
Eat nextEat = currentEat.getE xit(direction);

if (nextEat == null) {
System.out.prin tln("Ain't a thing here!");
}
else {
currentEat = nextEat;
System.out.prin tln(currentEat. getLongDescript ion());
}


}


/**
* Try to go to one direction. If there is an exit, enter the new
* room, otherwise print an error message.
*/
private void goView(Command command)
{
if(!command.has SecondWord()) {
// if there is no second word, we don't know where to go...
// user must type the direction to go after typing in 'view'...
System.out.prin tln("View what?");
return;
}

String direction = command.getSeco ndWord();

//Take a closer view at current food.
View nextView = currentView.get Exit(direction) ;

if (nextView == null) {
System.out.prin tln("There is nothing here!");
}
else {
currentView = nextView;
System.out.prin tln(currentView .getLongDescrip tion());
}


}



/**
* Try to look to one direction. If there is an exit, enter the new
* foodgroup, otherwise print an error message.
*/
private void goFood(Command command)
{
if(!command.has SecondWord()) {
// if there is no second word, we don't know where to go...
// user must type the direction to go after typing in 'look'...
System.out.prin tln("Fetch what?");
return;
}

String direction = command.getSeco ndWord();

// Try to look at next food item.
Food nextFood = currentFood.get Exit(direction) ;

if (nextFood == null) {
System.out.prin tln("You're looking the wrong way!");
}
else {
currentFood = nextFood;
System.out.prin tln(currentFood .getLongDescrip tion());
}

}




/**
* Check the rest of the command to see whether we really quit the game.
* Return true, if this command quits the game, false otherwise.
*/
private boolean quit(Command command)
{
if(command.hasS econdWord()) {
System.out.prin tln("Quit what?");
return false;
}
else {
return true; // signal that we want to quit
}
}
}

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End of class Game...