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nbsdgames/games/battleship.c
abdulrahman e67121e495 first commit
2018-09-21 20:12:39 +04:30

561 lines
12 KiB
C
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#include <curses.h>
#include <string.h>
#include <time.h>
#include <limits.h>
#include <stdlib.h>
#include <signal.h>
#define MISS -2
#define SEA -1
#define HIT 0
#define ENGLISH_LETTERS 26
#define NOTHING -1
#define ALL 0x7c
#define RED 3
#define CYAN 2
/*
_
|_)
|_)ATTLESHIP
copyright Hossein Bakhtiarifar 2018 (c)
No rights are reserved and this software comes with no warranties of any kind to the extent permitted by law.
compile with -lncurses
*/
typedef signed char byte;
typedef unsigned char bitbox;
bool multiplayer;
byte py,px;//cursor
chtype colors[4]={0};
byte game[2][10][10];//main board
bool computer[2] = {0};
byte score[2] = {0};//set by header()
bitbox sunk[2]={0};
byte just_sunk[2]={0};//to be displayed for human players
byte firstinrowy , firstinrowx ;
byte lastinrowy ,lastinrowx;
byte goindirection;
byte shotinvain;
void sigint_handler(int x){
endwin();
puts("Quit.");
exit(x);
}
void rectangle(byte sy,byte sx){
for(byte y=0;y<=10+1;y++){
mvaddch(sy+y,sx,ACS_VLINE);
mvaddch(sy+y,sx+10*2,ACS_VLINE);
}
for(byte x=0;x<=10*2;x++){
mvaddch(sy,sx+x,ACS_HLINE);
mvaddch(sy+10+1,sx+x,ACS_HLINE);
}
mvaddch(sy,sx,ACS_ULCORNER);
mvaddch(sy+10+1,sx,ACS_LLCORNER);
mvaddch(sy,sx+10*2,ACS_URCORNER);-
mvaddch(sy+10+1,sx+10*2,ACS_LRCORNER);
}
void print_type(byte type){
switch(type){
case(2):
addstr("patrol boat");
break;
case(3):
addstr("destroyer");
break;
case(4):
addstr("battleship");
break;
case(5):
addstr("carrier");
break;
case(6):
addstr("submarine");
break;
}
}
void MID(byte *y , byte *x, byte direction){
switch(direction){
case(0):
*x=*x-1;
break;
case(1):
*y=*y-1;
break;
case(2):
*x=*x+1;
break;
case(3):
*y=*y+1;
break;
}
}
void genocide(bool side , byte type){
byte y,x;
for(y=0;y<10;y++){
for(x=0;x<10;x++){
if(game[side][y][x] == type)
game[side][y][x] = SEA;
}
}
}
void header(bool side){
score[0]=score[1]=0;
byte y,x;
for(y=0;y<10;y++){
for(x=0;x<10;x++){
if(game[!side][y][x] == HIT)
score[side]++;
if(game[side][y][x] == HIT)
score[!side]++;
}
}
mvaddch(0,1, '_');
mvprintw(1,0,"|_) %2d:%2d",score[side],score[!side]);
mvprintw(2,0,"|_)ATTLESHIP ");
}
void draw(bool side,byte sy,byte sx){//the game's board
rectangle(sy,sx);
chtype ch ;
byte y,x;
for(y=0;y<10;y++){
for(x=0;x<10;x++){
ch =A_NORMAL;
if(y==py && x==px)
ch |= A_STANDOUT;
if(game[side][y][x] == HIT)
ch |= 'X'|colors[RED];
else if(game[side][y][x] > 0 )
ch |= ACS_BLOCK|colors[side];
else if(game[side][y][x]== MISS)
ch |= 'O'|colors[CYAN];
else
ch |= '~'|colors[CYAN];
mvaddch(sy+1+y,sx+x*2+1,ch);
}
}
}
void draw_trackboard(bool side,byte sy,byte sx){
rectangle(sy,sx);
chtype ch ;
byte y,x;
for(y=0;y<10;y++){
for(x=0;x<10;x++){
ch =A_NORMAL;
if(y==py && x==px-10)
ch |= A_STANDOUT;
if(game[!side][y][x] == HIT)
ch |= '*'|colors[RED];
else if(game[!side][y][x]== MISS)
ch |= '~'|colors[CYAN];
else
ch |= '.';
mvaddch(sy+1+y,sx+x*2+1,ch);
}
}
refresh();
}
void autoset(bool side){
byte y=0,x=0,direction=0, invain=0;
byte realy,realx;
byte l;
for(byte type=2;type<7;type++){
SetLocation:
realy=random()%10;
realx=random()%10;
invain=0;
SetDirection:
y=realy;
x=realx;
direction=random()%4;
for(l=0;(type != 6 && l<type) || (type==6 && l<3) ; l++){//there are two kinds of ship sized 3 tiles
if( y<0 || x<0 || y>=10 || x>=10 || game[side][y][x] != SEA ){
genocide(side,type);
invain++;
direction= (direction+1)%4;
if(invain<4)
goto SetDirection;
else
goto SetLocation;//endless loop
}
else{
game[side][y][x]=type;
MID(&y,&x,direction);
}
}
}
}
void set_the_board(bool side){
if( computer[side] ){
autoset(side);
return;
}
erase();
mvaddch(0,1, '_');
mvaddstr(1,0,"|_) Set your board");
mvaddstr(2,0,"|_)ATTLESHIP");
mvaddstr(16,0,"Press RETURN to specify the location and press R to rotate the ship.");
int input;
byte y=0,x=0,direction=0, invain=0;
byte realy,realx;
byte l;
py=px=0;
for(byte type=2;type<7;type++){
mvaddstr(15,0,"Put your ");
print_type(type);
addstr(" in its position: ");
SetLocation:
while(1){
draw(side,3,0);
refresh();
input = getch();
if( (input=='k' || input==KEY_UP) && py>0)
py--;
if( (input=='j' || input==KEY_DOWN) && py<9)
py++;
if( (input=='h' || input==KEY_LEFT) && px>0)
px--;
if( (input=='l' || input==KEY_RIGHT) && px<9)
px++;
if( input=='\n' )
break;
if( input=='q' )
sigint_handler(EXIT_SUCCESS);
}
realy=y=py;
realx=x=px;
invain=0;
SetDirection:
y=realy;
x=realx;
for(l=0;(type != 6 && l<type) || (type==6 && l<3) ; l++){//there are two kinds of ship sized 3 tiles
if( y<0 || x<0 || y>=10 || x>=10 || game[side][y][x] != SEA ){
genocide(side,type);
invain++;
direction= (direction+1)%4;
if(invain<4)
goto SetDirection;
else
goto SetLocation;//endless loop
}
else{
game[side][y][x]=type;
MID(&y,&x,direction);
}
}
while(1){
invain=0;
draw(side,3,0);
input=getch();
if( input== 'r' || input == 'R' ){
genocide(side,type);
direction= (direction+1)%4;
goto SetDirection;
}
else
break;
}
}
}
void turn_shift(void){
if(!multiplayer)
return;
char key = 'a'+(random()%ENGLISH_LETTERS);
int input1,input2,input3;
input1=input2=input3=0;
erase();
beep();
mvaddch(0,1, '_');
mvaddstr(1,0,"|_) Anti-cheater");
mvaddstr(2,0,"|_)ATTLESHIP");
mvaddstr(4,0,"********************");
mvprintw(5,0," Type '%c' 3 times ",key);
mvaddstr(6,0," before ");
mvaddstr(7,0," proceeding ");
mvaddstr(8,0," to the game ");
mvaddstr(10,0,"********************");
refresh();
while(1){
input3=input2;
input2=input1;
input1=getch();
if( (input1==input2) && (input2==input3) && (input3==key) )
break;
}
erase();
}
byte shoot(bool turn, byte y , byte x){
byte s = game[!turn][y][x];
if(s>0){
game[!turn][y][x]=HIT;
return 1;
}
else if(s==HIT || s==MISS || y<0 || x<0 || y>9 || x>9 ){ //didn't shoot at all
return -1;
}
else{
game[!turn][y][x]=MISS;
return 0;
}
}
void sink_announce(bool side){
byte type,y,x;
for(type=2;type<7;type++){
for(y=0;y<10;y++){
for(x=0;x<10;x++){
if( game[!side][y][x] == type )
goto Next;
}
}
//there is no instance of 'type' in the opponet's board
if( ( (1 << type) | sunk[!side] ) != sunk[!side] ){
sunk[!side] |= (1 << type);
if(computer[side]){
lastinrowy=lastinrowx=firstinrowy=firstinrowx=-1;
shotinvain=0;
}
else{
just_sunk[!side]=type;//leave to be displayed by you_sunk
}
return;
}
Next:
continue;
}
}
void you_sunk(bool side){
if( just_sunk[!side] == 3)
mvaddstr(15,0,"You have destroyed my destroyer!!");
else if( just_sunk[!side]){
mvaddstr(15,0,"You have sunk my ");
print_type(just_sunk[!side]);
addstr("!!");
}
just_sunk[!side]=0;
}
void cheat(bool side){
/* its actually an anti-cheat, the player can place all their ships adjacent to the others and in the same direction,
and the algorithm will often play in a way that it will be left with some isolated tiles being unshot (with their ships being shot before).
a human will *very easily* find the tiles with logical thinking, but the computer is random and it will take such a long time for it
that it will often lose the winning game.
this function still doesn't make a win,it's randomly executed.*/
byte y,x;
for(y=0;y<10;y++){
for(x=0;x<10;x++){
if(game[!side][y][x]>0){
shoot(side,y,x);
firstinrowy=y;
firstinrowx=x;
return;
}
}
}
}
void decide(bool side){// sink_announce is responsible for unsetting this variables
byte y,x,r;
Again:
if( firstinrowy == NOTHING ){
if( score[!side] > 13 && score[side]<score[!side] && random()%2 ){
cheat(side);
return;
}
while(1){
y = random()%10;
x = random()%10;
r = shoot(side,y,x);
if(r == 1){
firstinrowy=y;
firstinrowx=x;
}
if(r != NOTHING)
return;
}
}
else if( lastinrowy ==NOTHING ){
if(goindirection == NOTHING)
goindirection = random()%4;
while(1){
y= firstinrowy;
x= firstinrowx;
MID(&y,&x,goindirection);
r= shoot(side,y,x);
if( r != 1 ){
goindirection = (goindirection+1)%4;
shotinvain++;
if(shotinvain==4){ // this only occurs in case of a ship being shot before but not sunk ( e.g. in exprimenting for the direction)
shotinvain=0;
y=firstinrowy;
x=firstinrowx;
goindirection = (goindirection+1)%4;
while(game[!side][y][x]==HIT){//go till you reach an unshot tile
MID(&y,&x,goindirection);
if( (y<0 || x<0 || y>9 || x>9) && r==NOTHING){
goto Again;
}
}
r= shoot(side,y,x);
if(r==1){
lastinrowy=y;//continue from the imaginary firstinrow
lastinrowx=x;
}
if(r==NOTHING)
goto Again;
}
}
else{
lastinrowy= y;
lastinrowx= x;
}
if( r != NOTHING )
return;
}
}
else{
y=lastinrowy;
x=lastinrowx;
MID(&y,&x,goindirection);
r=shoot(side,y,x);
if( r == 1 ){
lastinrowy=y;
lastinrowx=x;
}
else{
lastinrowy=lastinrowx=NOTHING;
goindirection=(goindirection+2)%4;
}
if( r != NOTHING )
return;
else{
goto Again;
}
}
}
int main(int argc , char** argv){
initscr();
curs_set(0);
noecho();
cbreak();
keypad(stdscr,1);
if( has_colors() ){
start_color();
use_default_colors();
init_pair(1,COLOR_GREEN,-1);
init_pair(2,COLOR_YELLOW,-1);
init_pair(3,COLOR_CYAN,-1);
init_pair(4,COLOR_RED,-1);
for(byte b=0;b<4;b++)
colors[b]=COLOR_PAIR(b+1);
}
int input;
printw("Choose type of the game:\n");
printw("1 : Single Player*\n");
printw("2 : Multi Player\n");
input=getch();
if(input == '2'){
multiplayer=1;
computer[1]=computer[0]=0;
}
else{
multiplayer=0;
computer[1]=1;
computer[0]=0;
}
Start:
firstinrowy=firstinrowx=lastinrowy=lastinrowx=goindirection=-1;
shotinvain=0;
sunk[0]=sunk[1]=0;
memset(game,SEA,200);
srandom(time(NULL)%UINT_MAX);
erase();
set_the_board(0);
turn_shift();
set_the_board(1);
bool won;
bool turn=1;
Turn:
px=10;
py=0;
sink_announce(turn);
if( sunk[0]==ALL ){
won=1;
goto End;
}
else if( sunk[1]==ALL ){
won=0;
goto End;
}
//the turn starts HERE
turn=!turn;
turn_shift();
if( computer[turn] ){
decide(turn);
goto Turn;
}
else{
erase();
you_sunk(turn);
while(1){
header(turn);
draw(turn,3,0);
draw_trackboard(turn,3,22);
refresh();
input=getch();
if( (input=='k' || input==KEY_UP) && py>0)
py--;
if( (input=='j' || input==KEY_DOWN) && py<9)
py++;
if( (input=='h' || input==KEY_LEFT) && px>10)
px--;
if( (input=='l' || input==KEY_RIGHT) && px<19)
px++;
if( input=='q')
sigint_handler(EXIT_SUCCESS);
if( input=='\n'){
byte r=shoot(turn,py,px-10);
if(r != -1){
goto Turn;
}
}
}
}
End:
erase();
header(won);
draw(won,3,0);
draw_trackboard(won,3,22);
if( computer[won] )
mvaddstr(15,0,"Hahaha! I won! ");
else
mvprintw(15,0,"Player %d won the game.",won+1);
addstr(" Wanna play again? (y/N)");
refresh();
curs_set(1);
input=getch();
if( input=='y' || input=='Y' ){
curs_set(0);
goto Start;
}
endwin();
return 0;
}
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