First game well on its way! looking for some pointers...

122

Author

October 07, 2004 10:06 PM

Ive been reading these boards for about 2 weeks now. I stumbled accross this site while looking for some C++ tutorials, and now im hooked. Im here reading the boards every day. This will be my first of what i hope will become MANY posts on these forums. Well anyway, ive been working on this here and there for a few days now, and its almost ready. I decided that i wanted to tackle something a bit more complex than tic-tac-toe for my first game, so i decided to go with checkers instead! Now i have it almost ready, its playable, but i havent written the AI for the single player vs the computer option yet. But the 2 player option works just fine...(or should anyway :P ) Anyway, heres the code, let me know what you all think! checkers.cpp


#include <iostream.h>
#include <stdlib.h>
#include "checkers.h"

void New_Game(int num_players);
void Update_Board(Player player1,Player player2);
void DisplayBoard();
void Single_Player(Player player1,Player player2);
void Multi_Player(Player player1,Player player2);
bool VictoryCheck(int VictoryP1, int VictoryP2);

int board[8][8];


int main()
{
	int menu_choice;
	
	do
	{
		cout<<"Welcome to Alima's Checkers game!\n";
		cout<<"1 -- New 1 Player Game\n";
		cout<<"2 -- New 2 Player Game\n";
		cout<<"3 -- Quit\n";
		cout<<endl<<"Enter your choice: ";
		cin>>menu_choice;

		switch(menu_choice)
		{
			case 1:
				New_Game(1);
				break;
			case 2:
				New_Game(2);
				break;
			default:
				cout<<"Thanks for playing!\n";
				break;
		}
	}
	while(menu_choice<3);

	return(0);
}

void New_Game(int num_players)
{

	Player player1;
	Player player2;

	player1.setup(1);
	player2.setup(2);

	for (int y=0;y<8;y++)
	{
		for (int x=0;x<8;x++)
			board[x][y]=0;
	}

	if (num_players==1)
		Single_Player(player1,player2);
	else
		Multi_Player(player1,player2);
}

void Update_Board(Player player1,Player player2)
{

	for (int x=0;x<8;x++)
	{
		for (int y=0;y<8;y++)
		{
			board[x][y]=0;
		}
	}

	for (int z=0;z<12;z++)
	{
		board[player1.pieces[z].x_pos][player1.pieces[z].y_pos]=1;
		board[player2.pieces[z].x_pos][player2.pieces[z].y_pos]=2;
	}
}

void DisplayBoard()
{
	system("cls");

	cout<<"  1 2 3 4 5 6 7 8 X\n";

	for (int y=0;y<8;y++)
	{
		cout<<(y+1)<<"|";
		for (int x=0;x<8;x++)
		{
			if(board[x][y]==1)
				cout<<"X|";
			else if(board[x][y]==2)
				cout<<"O|";
			else
				cout<<" |";
		}
		cout<<"\n";
	}
	cout<<"Y\n";
}

void Single_Player(Player player1,Player player2)
{
	cout<<"Under Construction,,,\n\n";
}

void Multi_Player(Player player1,Player player2)
{
	bool victory=false;

	int VictoryP2, VictoryP1;

	int current_player=1;
	int jump=12;

	do
	{
		VictoryP1=0;
		VictoryP2=0;
		
		Update_Board(player1,player2);
		DisplayBoard();
		
		if(current_player==1)
		{
			jump=player1.Player_Turn(player2.pieces,1);
			if (jump<12){player2.pieces[jump].x_pos=8;player2.pieces[jump].y_pos=8;}
			current_player++;
			jump=12;
		}
		else
		{
			jump=player2.Player_Turn(player1.pieces,2);
			if (jump<12){player1.pieces[jump].x_pos=8;player1.pieces[jump].y_pos=8;}
			current_player--;
			jump=12;
		}

		for (int c=0;c<12;c++)
		{
			if ((player1.pieces[c].x_pos==8) && (player1.pieces[c].x_pos==8))
				VictoryP2++;
			else if ((player2.pieces[c].x_pos==8) && (player2.pieces[c].x_pos==8))
				VictoryP1++;
		}
		
		victory=VictoryCheck(VictoryP1, VictoryP2);
			
	}
	while(!victory);
}

bool VictoryCheck(int VictoryP1, int VictoryP2)
{
	if (VictoryP1==12)
	{
		system("cls");
		cout<<"Player1 Wins!!!\n";
		cin.get();
		return (true);
	}
	else if (VictoryP2==12)
	{
		system("cls");
		cout<<"Player2 Wins!!!\n";
		cin.get();
		return (true);
	}

	return (false);
}

checkers.h


#include <iostream.h>

struct piece
{
	int x_pos;
	int y_pos;
//	bool active=1;
//	bool king=0;
};

class Player
{
public:
	piece pieces[12];

	void setup(int player_num);
	int Player_Turn(piece sPlayer2[12], int player_num);
	void Comp_Turn();

	Player();
	~Player();

private:
	bool CheckPiece(int xOld, int yOld, int *CurrentPiece);
	bool CheckDest(int PlayerNum, int CurrentPiece, int xNew, int yNew, piece sPlayer2[12], int *DeadPiece);
	int JumpCheck(int xNew, int yNew, piece sPlayer2[12]);
};

Player::Player()
{
}

Player::~Player()
{
}

void Player::setup(int player_num)
{
	if (player_num==1)
	{
		pieces[0].x_pos=0;
		pieces[0].y_pos=0;

		pieces[1].x_pos=2;
		pieces[1].y_pos=0;

		pieces[2].x_pos=4;
		pieces[2].y_pos=0;

		pieces[3].x_pos=6;
		pieces[3].y_pos=0;

		pieces[4].x_pos=1;
		pieces[4].y_pos=1;

		pieces[5].x_pos=3;
		pieces[5].y_pos=1;

		pieces[6].x_pos=5;
		pieces[6].y_pos=1;

		pieces[7].x_pos=7;
		pieces[7].y_pos=1;

		pieces[8].x_pos=0;
		pieces[8].y_pos=2;

		pieces[9].x_pos=2;
		pieces[9].y_pos=2;

		pieces[10].x_pos=4;
		pieces[10].y_pos=2;

		pieces[11].x_pos=6;
		pieces[11].y_pos=2;
	}
	else
	{
		pieces[0].x_pos=1;
		pieces[0].y_pos=5;

		pieces[1].x_pos=3;
		pieces[1].y_pos=5;

		pieces[2].x_pos=5;
		pieces[2].y_pos=5;

		pieces[3].x_pos=7;
		pieces[3].y_pos=5;

		pieces[4].x_pos=0;
		pieces[4].y_pos=6;

		pieces[5].x_pos=2;
		pieces[5].y_pos=6;

		pieces[6].x_pos=4;
		pieces[6].y_pos=6;

		pieces[7].x_pos=6;
		pieces[7].y_pos=6;

		pieces[8].x_pos=1;
		pieces[8].y_pos=7;

		pieces[9].x_pos=3;
		pieces[9].y_pos=7;

		pieces[10].x_pos=5;
		pieces[10].y_pos=7;

		pieces[11].x_pos=7;
		pieces[11].y_pos=7;
	}

}

int Player::Player_Turn(piece sPlayer2[12], int player_num)
{
	int xOld;
	int yOld;
	int xNew;
	int yNew;

	int CurrentPiece=0;
	int DeadPiece=12;

	bool valid=false;


	do
	{
		do
		{
			cout<<"Player"<<player_num<<", Enter the X and Y coord for the piece you wish to move: ";
			cin>>xOld>>yOld;
			
			xOld--;
			yOld--;
			valid=CheckPiece(xOld, yOld,&CurrentPiece);
		}
		while(!valid);
		
		valid=false;

		cout<<"Player"<<player_num<<", Enter the X and Y coord for where you want to move thie piece: ";
		cin>>xNew>>yNew;
		
		xNew--;
		yNew--;

		valid=CheckDest(player_num, CurrentPiece, xNew, yNew, sPlayer2, &DeadPiece);
		if (!valid)
			cout<<"You cannot move your piece there!\n";
	}
	while(!valid);

	if (DeadPiece<12)
		return (DeadPiece);

	return 12;
}

void Player::Comp_Turn()
{
	int xOld;
	int yOld;
	int xNew;
	int yNew;
}

bool Player::CheckPiece(int xOld, int yOld, int *CurrentPiece)
{
	for (int z=0;z<12;z++)
	{
		if ((pieces[z].x_pos==xOld)&&(pieces[z].y_pos==yOld))
		{
			*CurrentPiece=z;
			return (true);
		}
	}
	return (false);
}

bool Player::CheckDest(int PlayerNum, int CurrentPiece, int xNew, int yNew, piece sPlayer2[12], int *DeadPiece)
{
	int Jump=12;

	for (int z=0;z<12;z++)
	{
		if ((xNew==sPlayer2[z].x_pos) && (yNew==sPlayer2[z].y_pos))
			return (false);
	}

	switch(PlayerNum)
	{
	case 1:
		if (((pieces[CurrentPiece].x_pos+1==xNew)||(pieces[CurrentPiece].x_pos-1==xNew))&&(pieces[CurrentPiece].y_pos+1==yNew))
		{
			pieces[CurrentPiece].x_pos=xNew;
			pieces[CurrentPiece].y_pos=yNew;
			return (true);
		}
		else if ((pieces[CurrentPiece].x_pos+2==xNew)||(pieces[CurrentPiece].x_pos-2==xNew)&&(pieces[CurrentPiece].y_pos+2==yNew))
		{
			Jump=JumpCheck(xNew, yNew-1, sPlayer2);
			if (Jump==12)
			{
				return (false);
			}
			else
			{
				pieces[CurrentPiece].x_pos=xNew;
				pieces[CurrentPiece].y_pos=yNew;
				*DeadPiece=Jump;
				return (true);
			}
		}
		break;
	case 2:
		if (((pieces[CurrentPiece].x_pos+1==xNew)||(pieces[CurrentPiece].x_pos-1==xNew))&&(pieces[CurrentPiece].y_pos-1==yNew))
		{
			pieces[CurrentPiece].x_pos=xNew;
			pieces[CurrentPiece].y_pos=yNew;
			return (true);
		}
		else if ((pieces[CurrentPiece].x_pos+2==xNew)||(pieces[CurrentPiece].x_pos-2==xNew)&&(pieces[CurrentPiece].y_pos-2==yNew))
		{
			Jump=JumpCheck(xNew, yNew+1, sPlayer2);
			if (Jump==12)
				return (false);
			else
			{
				pieces[CurrentPiece].x_pos=xNew;
				pieces[CurrentPiece].y_pos=yNew;
				*DeadPiece=Jump;
				return (true);
			}
		}
		break;
	default:
		break;
	}
	return (false);
}

int Player::JumpCheck(int xNew, int yNew, piece sPlayer2[12])
{
	for (int z=0;z<12;z++)
	{
		if ((sPlayer2[z].x_pos==xNew-1)||(sPlayer2[z].x_pos==xNew+1))
		{
			if (sPlayer2[z].y_pos==yNew)
				return z;
		}
	}
	return (NULL);
}

please let me know what yall think. thanks in advance and i look forward to being part of the GameDev community! Alima

DaveMan

122

October 07, 2004 11:55 PM

Congrats on your first game! There is one little error that i found playing it for a few minutes. i was able to move my game piece from 2 4 to 4 5. so basically this happens:

from 2 4:

1 2 3 4 5 6 7 8 X
1| | |X| |X| |X| |
2| | | |X| |X| |X|
3|X| |X| |X| |X| |
4| |X| | | | | | |
5| | | | | | | | |
6| | |O|O| |O| |O|
7| | |O| |O| |O| |
8| |O| |O| |O| |O|
Y

to:

1 2 3 4 5 6 7 8 X
1| | |X| |X| |X| |
2| | | |X| |X| |X|
3|X| |X| |X| |X| |
4| | | | | | | | |
5| | | |X| | | | |
6| | |O|O| |O| |O|
7| | |O| |O| |O| |
8| |O| |O| |O| |O|
Y

and as you can see i did it earlier as well from the O that's at 3 6. So cool nonetheless! Can't wait to the ai!

Alpha_ProgDes

6,963

October 08, 2004 12:04 AM

if you put and around the your ASCII diagram, it'll look much better [smile]
edit: without the spaces

edit2 (demo):

Congrats on your first game!  There is one little error that i found playing it for a few minutes.  i was able to move my game piece from 2 4 to 4 5. so basically this happens:from 2 4:  1 2 3 4 5 6 7 8 X1| | |X| |X| |X| |2| | | |X| |X| |X|3|X| |X| |X| |X| |4| |X| | | | | | |5| | | | | | | | |6| | |O|O| |O| |O|7| | |O| |O| |O| |8| |O| |O| |O| |O|Yto:  1 2 3 4 5 6 7 8 X1| | |X| |X| |X| |2| | | |X| |X| |X|3|X| |X| |X| |X| |4| | | | | | | | |5| | | |X| | | | |6| | |O|O| |O| |O|7| | |O| |O| |O| |8| |O| |O| |O| |O|Yand as you can see i did it earlier as well from the O that's at 3 6.  So cool nonetheless! Can't wait to the ai!

Beginner in Game Development? Read here. And read here.