bs_client.c

#include<stdio.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<sys/socket.h>
#include<unistd.h>
#include<sys/types.h>


//game harbours
int home[10][10]; 
int away[10][10];
// connection buffers
int32_t readbfr;
int32_t postbfr;
// socket 
int sock;
// socket details
struct sockaddr_in sendsock;

/*
network protocall for the game 
message = 00000
ones position = position status /occupied/not occupied/failed hit/successful hit
tens position = y coord
hundreds position = x coord
thousands position = ship type
ten thousands position = misc message;
*/

// function prototypes
int checkfill(int x,int y,int size,int orientation);
int gshow(char *query);
void setz();
int post();
int recieve();
int addship(int x,int y,int size,int orientation);
int uphit();
int upstrike();
void status(int value);
int placescheckhome();
int placescheckaway();

// Start Execution !!

int main(){
	// connection parameter collection
	
	int port;
	printf("port :");
	scanf("%d",&port);
	char ip[1024];
	printf("enter IP Address (IPv4):");
	scanf("%s",ip);
		
	//setting parameters for connection
	
	sendsock.sin_family = AF_INET;
	sendsock.sin_port = htons(port);
	sendsock.sin_addr.s_addr = inet_addr(ip);
	
	// creating the socket initial conf.

	sock=socket(AF_INET,SOCK_STREAM,0);

	if(sock<0){
		printf("\n socket creation error");
		return 0;
		}
	else{
		printf("\n socket created");
		}
	int cxnst=connect(sock,(struct sockaddr*)&sendsock,sizeof(sendsock));
	if(cxnst<0){
		printf("\n connection error");
		return 0;
		}
	else{
		printf("\n client connected");
		}

	printf("\nclient connected to %s",ip);

	//awesome
	int a,b,c,d=1;

	//start the game get filling
	setz();
	gshow("");
	while(d<=5){
		printf("Enter The x coordinate for placement of ship (size==|%2d:",d);
		scanf("%d",&a);
		printf("Enter The y coordinate for placement of ship (size==|%2d:",d);
		scanf("%d",&b);		
		printf("Enter The orientation for placement of ship \n1= vertical , 0=horizontal(size==|%2d:",d);
		scanf("%d",&c);		
		if((checkfill((a-1),(b-1),c,d))==1){
			addship((a-1),(b-1),c,d);
			d++;		
			}
		else{
			printf("invalid position");	
			}
		gshow("");
		}
	printf("waiting for the other player");
	//start
	post (0);
	while(recieve()!=0){
		}
	int t;
	t=1;
	a=0;
	int x;
	int y;
	int p;
	printf("initialising game");
	
	//the game
	while(a==0){
		
		if (t%2==0){
			printf("opponents turn %%.%%.%%..");
			uphit();
			t++;	
			}
		else{
			gshow("enter The coordinates for the strike");
			printf("The X coordinate:");
			scanf("%d",&x);
			printf("The Y coordinate:");
			scanf("%d",&y);
			upstrike(x-1,y-1);
			t++;
			}
		if (placescheckhome() == 0){
			gshow("You LOST . Better luck next time :( ");
			break;
			}
		else if(placescheckaway() ==0){
			gshow("You WON !! Awesome !! ,keep it up :) ");
			break;
			}
		}
	if(shutdown(sock,2)==0){
		printf("closed client Socket");
		}
	printf("Hope you Enjoyed the Game (c) Paul George For GCI LABS \n Bye !");
	return 0;
	}
// places left
int placescheckhome(){
	int i,j,k=0;
	for (i=0;i<10;i++){
		for(j=0;j<10;j++){
			if ((home[i][j]%10)==1){
				k++;
				}
			}
		}
	return k;
	}
// places left on the away 	
int placescheckaway(){
	int i,j,k=0;
	for (i=0;i<10;i++){
		for(j=0;j<10;j++){
			if ((away[i][j]%10)==4){
				k++;
				}
			}
		}
	return (15-k);
	}
//update when hit by the enemy
//update when hit by the enemy
int uphit (){
	int a = recieve();
	int x =(a%10);
	int y =((a/10)%10); 
	if (((home[x][y])%10)==1||((home[x][y]%10)==4)){
		home[x][y]=4;
		post(4);
		gshow ("you have been HIT");		
		return 1;
		}
	else if((home[x][y]%10)!=1){
		home[x][y]=3;
		gshow("the opponent missed");
		post(3);
		return 1;
		}
	return 8;
	}
//update when attacking the enemy

int upstrike(int x, int y){
	post(x+(10*y));		
	int a = recieve();
	if ((a)==4){
		away[x][y]=4;
		gshow("hit successful");
		}
	else{
		away[x][y]=3;
		gshow("failed hit");
		}
	return 1;
	}

//checking if the ship can be inserted in the given position
	
int checkfill(int x,int y,int orientation,int size){
	int i,j,k=0,l;	
	if(orientation ==1){
		for(i=0;((x+i)<10)&&(i<size);i++){
			if (home[x+i][y]==0){
				k++;
				}
			}		
		
		}
	else if(orientation ==0) {
		for(i=0;((y+i)<10)&&(i<size);i++){
			if (home[x][y+i]==0){
				k++;
				}
			}
		}
	if (k==size){
		return 1;
		}
	else{
		return 8;
		}	
	}


// displaying the array s and related information

int gshow(char message[1024]){	
	system("clear");	
	int i=-1,j=-1,k,l;
	printf("\n");
	printf("\nNETOWRK BATTLESHIP V 1.0.1 Beta (c) Paul George For GCI LABS\n");
	for (i=-1;i<10;i++){
		for(j=-1;j<10;j++){
			if(i==-1&&j==-1){
				printf(" x\\y ");
				}
			else if (i==-1){
				printf(" %2d  ",j+1);
				}
			else if(j==-1){
				printf(" %2d  ",i+1);
				}
			else{
				status(home[i][j]);
				}
			}
		printf("\n");		
		}
	printf("ships remaing to attack: %2d",placescheckaway());
	printf("\tships left : %2d",placescheckhome());
	printf("\n");
	for (i=-1;i<10;i++){
		for(j=-1;j<10;j++){
			if(i==-1&&j==-1){
				printf(" x\\y ");
				}
			else if (i==-1){
				printf(" %2d  ",j+1);
				}
			else if(j==-1){
				printf(" %2d  ",i+1);
				}
			else{
				status(away[i][j]);
				}
			}
		printf("\n");		
		}	
	puts(message);
	}
		
// char graphics later upgrade to open gl
void status(int value){
		if (value%10==0){
			printf(" ~~~ ");			
			}
		else if (value%10==3){
			printf(" ~*~ ");			
			}
		else if (value%10==4){
			printf(" /O/ ");			
			}
		else if (value%10==1){
			printf(" /#/ ");			
			}
		else {
			printf("error");			
			}
	}
// setting the arrays to zero in the begining
void setz(){
	int i=0,j=0;
	for (i=0;i<10;i++){
		for(j=0;j<10;j++){
			home[i][j]=0;
			}
		}
	for (i=0;i<10;i++){
		for(j=0;j<10;j++){
			away[i][j]=0;
			}
		}
	}
// posting the message integer
int post(int32_t num){
        postbfr = htonl(num);
        send(sock, &postbfr, sizeof(int32_t), 0);
        return  0;
	}

// recieve ing the sent integer

int recieve(){
	recv(sock,&readbfr, sizeof(int32_t), 0);
	return (ntohl(readbfr));
	}

int addship(int x,int y,int orientation,int size){
	int i=0,j=0;
	if(orientation ==1){
		for(i=0;i<size;i++){
			home[x+i][y]=10*(x+i)+100*(y)+1000*(size)+1;
			}		
		}
	else{
		for(i=0;i<size;i++){
			home[x][y+i]=10*(x)+100*(y+i)+1000*(size)+1;
			}
		}
	}