cyrilcolinet / PSU_navy_2017

:shell: System Unix Programming Navy's Epitech project. The goal of this project is to maitrise signals (SIGINT, SIGUSR1, SIGUSR2, ..., and be able to send data with their signals.

Navy - You sunk my battleship !

• Binary name: navy
• Repository name: PSU_navy_2017
• Repository rights: ramassage-tek, [e-mail]
• Group size: 2
• Language: C
• Compilation: via Makefile, including re, clean and fclean rules

Subject

You all know the very famous Battleship game. Well, I hope so.
You must code a terminal version of this game.
The two players are ONLY allowed to communicate using the signals SIGUSER1 and SIGUSER2.

The map size is 8x8. On each turn, you must display your positions, and then your enemy’s positions.

At the end of the game (when all the ships of a player have been hit), you must display whether “I won” (and return 0) or “Enemy won” (and return 1).

💡 You are allowed to use one (and only one) global variable, if you can justify it.

∼/B-PSU-200> ./navy -h
USAGE
        ./navy [pid] <pos>

DESCRIPTION
        pid PID of the first player (Only for the 2nd player).
        pos file representing the positions of the ships.

The file passed as parameter must contain lines formatted the following way (without spaces):

LENGTH : FIRST_SQUARE : LAST_SQUARE

where LENGTH is the length of the ship, FIRST_SQUARE and LAST_SQUARE its first and last positions.
In this file, you must have 4 ships (of lengths 2,3,4 and 5).
If the navy file is invalid, you have to quit the program and consider it as an error.

Example

❗ The display must be EXACTLY the same as the one below.

Here is an example game.
The user inputs as written between _ character.

∼/B-PSU-200> cat maps/pos1
2:C1:C2
3:D4:F4
4:B5:B8
5:D7:H7

∼/B-PSU-200> cat maps/pos2
2:C4:D4
3:H1:H3
4:E6:H6
5:B1:F1

▷ Connection

Player one

∼/B-PSU-200> ./navy maps/pos1
my_pid: 4242
waiting for enemy connection...

enemy connected

Player two

∼/B-PSU-200> ./navy 4242 maps/pos2
my_pid: 4250
successfully connected

▷ Turn #1

Player one

my positions:
|A B C D E F G H
-+---------------
1|. . 2 . . . . .
2|. . 2 . . . . .
3|. . . . . . . .
4|. . . 3 3 3 . .
5|. 4 . . . . . .
6|. 4 . . . . . .
7|. 4 . 5 5 5 5 5
8|. 4 . . . . . .

enemy’s positions:
|A B C D E F G H
-+---------------
1|. . . . . . . .
2|. . . . . . . .
3|. . . . . . . .
4|. . . . . . . .
5|. . . . . . . .
6|. . . . . . . .
7|. . . . . . . .
8|. . . . . . . .

attack: _Z0_
wrong position
attack: _B6_
B6: missed

Player two

my positions:
|A B C D E F G H
-+---------------
1|. 5 5 5 5 5 . 3
2|. . . . . . . 3
3|. . . . . . . 3
4|. . 2 2 . . . .
5|. . . . . . . .
6|. . . . 4 4 4 4
7|. . . . . . . .
8|. . . . . . . .

enemy’s positions:
|A B C D E F G H
-+---------------
1|. . . . . . . .
2|. . . . . . . .
3|. . . . . . . .
4|. . . . . . . .
5|. . . . . . . .
6|. . . . . . . .
7|. . . . . . . .
8|. . . . . . . .

waiting for enemy’s attack...
B6: missed

attack: _4_
wrong position
attack: _C1_
C1: hit

▷ Turn #2

Player one

my positions:
|A B C D E F G H
-+---------------
1|. . x . . . . .
2|. . 2 . . . . .
3|. . . . . . . .
4|. . . 3 3 3 . .
5|. 4 . . . . . .
6|. 4 . . . . . .
7|. 4 . 5 5 5 5 5
8|. 4 . . . . . .

enemy’s positions:
|A B C D E F G H
-+---------------
1|. . . . . . . .
2|. . . . . . . .
3|. . . . . . . .
4|. . . . . . . .
5|. . . . . . . .
6|. o . . . . . .
7|. . . . . . . .
8|. . . . . . . .

attack: _C4_
C4: hit

waiting for enemy’s attack...
D1: missed

Player two

my positions:
|A B C D E F G H
-+---------------
1|. 5 5 5 5 5 . 3
2|. . . . . . . 3
3|. . . . . . . 3
4|. . . . . . . .
5|. . 2 2 . . . .
6|. o . . 4 4 4 4
7|. . . . . . . .
8|. . . . . . . .

enemy’s positions:
|A B C D E F G H
-+---------------
1|. . x . . . . .
2|. . . . . . . .
3|. . . . . . . .
4|. . . . . . . .
5|. . . . . . . .
6|. . . . . . . .
7|. . . . . . . .
8|. . . . . . . .

waiting for enemy’s attack...
C4: hit

attack: _D1_
D1: missed

▷ Etc...

▷ Last turn

Player one

attack: _H6_
H6: hit

my positions:
|A B C D E F G H
-+---------------
1|o . x o . o . o
2|. . 2 . . o . .
3|. o . . o . . .
4|. . . x x x . .
5|. x o . . o o .
6|. x . . . . . .
7|o x . x x x 5 5
8|. x . o . o . o

enemy’s positions:
|A B C D E F G H
-+---------------
1|. x x x x x . x
2|. . . o . o . x
3|. o . . . . o x
4|. . x x o . . o
5|. . . . . o . .
6|. o . . x x x x
7|. . o . . . o .
8|. . . . . o . .

I won

Player two

waiting for enemy’s attack...
H6: hit

my positions:
|A B C D E F G H
-+---------------
1|. x x x x x . x
2|. . . o . o . x
3|. o . . . . o x
4|. . x x o . . o
5|. . . . . o . .
6|. o . . x x x x
7|. . o . . . o .
8|. . . . . o . .

enemy’s positions:
|A B C D E F G H
-+---------------
1|o . x o . o . o
2|. . . . . o . .
3|. o . . o . . .
4|. . . x x x . .
5|. x o . . o o .
6|. x . . . . . .
7|o x . x x x . .
8|. x . o . o . o

Enemy won

Bonus

❗ You have to make the mandatory part before adding bonus !

Here are some example of bonus :

• play against an AI,
• a nice interface, music, etc...,
• multiplayer mode with more than two players,
• customize game,
• networking,
• and whatever you feel like.

Authorized functions

• open, close, read, write, lseek, malloc, free
• getpid, kill, signal, sigaction, sigemptyset, setcontext, getcontext
• usleep, nanosleep, pause