C++ Design Document


Our approach to this will be to create the program in the command window, depending on how much time we have left after completing it, we may or may not add in a GUI.

Once you run the program, you will be asked to select your game.
1 for Connect Four
2 for Snakes and Ladders
3 for Checkers
4 to quit the program

Once the user has selected their choice, they will press Enter to begin the game.
Depending on which choice the user makes, different methods and classes will be used
to play.

CONNECT FOUR:

					Overview
- Print a board in the command window. The board is 7x6(Column x Row)

- The player pieces will be represented by an X for red and a O for yellow

- The player will enter the column he would like to drop a piece in, resulting in the
correct player piece being dropped in

- If there is no other pieces below it, the player piece will drop to the bottom,
if there is more pieces below, the player piece will build on top of the previous ones.

- After each piece has been dropped, the program will check for a winner, this will require
it to check both the x and y axis, along with the diagonal of the piece. If there is a piece of the same color on either the x, y or diagonal, the computer will move to that piece and then
do the same check. If it does this successfully 4 times, the player has won. Otherwise,
the game will ask the next player to select his column and so on.






					Variables

	int [][] board = new int [7] [6] //variables
	players turn = 1

					Methods

	connectFour()	// constructor
	call setupBoard method

	void changeTurn()  //method used to change between player 1 and 2
		swap player turn, for example, if player 1, change to player 2

	void setupBoard()
		list through each array index to set the value to 0


	boolean insertChip(int Col) 	//has to check if the coloumn and row below
initialize row
go through the row array while the value of
row is not equal to 0,
if row is equal to 6 return false
increment row
if the player is player 1, use a red chip
if player is player 2 use a yellow chip
		changeTurn
		return true


boolean checkForWin()  //checks if player has won the game
		// do this later Slav

displayBoard()
Display 1-7 on top seperated by ‘|’,
Display 1-6 down the side, with a ‘|’ following it

	clearBoard()
Works like CLS command, but will clear the entire screen
Used for when players win, to print winning player
Or if players want to play again




SNAKES AND LADDERS

					Overview

- Print a board that is 10x10(Columns x Rows), this will have 5 ladders and 5 snakes
that we can add at random places on the board. The snakes will be represented as
‘=’ and the ladders will be represented by ‘H’

- When the player starts the game, a Player1 and Player2 token will be places at the start position.

- The user will press R to roll the dice, this will cause the player to move the correct amount of squares. If the player rolls 3 6’s, he will go back to the starting position and will have to roll a 6 again to move again.

- If a player lands on the bottom of a ladder he will move to the top of the ladder, if he lands on the top of a snake he moves to the bottom of the snake.

- When the player is at the end of the game he must roll the exact number to land on the last square. If he has 4 squares to go and rolls a 6 he will move 4 spaces forward, landing on the winning square, but then have to take 2 steps back.

- After each roll of the dice, the player piece moves and the next player will roll his dice.

Variables

	int [][] board = new array[10][10] //Board array and variables
	int rollNum
	playersTurn = 1
	int [][] playerPosition1 = new int [1][1];
	int [][] playerPosition2 = new int [1][1];

					Methods

	Snakes() //Constructor

	void changeTurn()
		Method used to change between player 1 and 2

int rollDice()
		Rolls a random integer between 1 and 6 and returns it


void placePlayer()
	Places player 1 and 2 in the starting position on the board

	void movePlayer(rollNum)
		Takes the rolled dice number.
		Moves player to correct number
		Moves player right until he gets to the 10th column, increment row
and then proceed left to the 1st column, where the process
		will repeat

	boolean checkForWin()
		If the player is between the 6th last column and the winning column
		he must roll an exact number to land on the

	void displayBoard()	 //displays the board with snakes and ladders
		This method will just be initializing several array index’s to either a snake or
		a ladder
board[3][0] = ‘H’
board[4][0] = ‘H’
board[5][0] = ‘H’



updateBoard(int col, int row) // display the new positions of the players


checkTile (board) // will check the tile to see if it corrosponds to the
//array index of a ladder or snake
	if the player is on ladder tiles ie, row 2 column 3
		move player to top of ladder at row 6 column 3
		//do this 5 times
		board[2][3] (playerPosition)= board[2][3] - playerValue
		board[6][3](playerPosition) = board[6][3] + playerValue
	if player is on snake tiles //ie row 8 column 7
		move player to bottom of snakes at row 2 column 9
		board[8][7] (playerPosition)= board[8][7] - playerValue
		board[2][9](playerPosition) = board[2][9] + playerValue


getPlayerInfo(string player) //gets players information
		print statement asking for playername
		initialize string to players name