Assuming you aren’t saving these to disk (if you are there are simpiler
solutions) then you can use something like the code below. I have
attached
the CPP file since that will be better formatted than what gets posted.
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
const int kBoardWidth = 8; // Whatever your board width is
const int kBoardHeight = 8; // Whatever your board height is
const int kMaxBoards = 3; // Max number of boards
// NOTE: I removed the commas after each string. This has the effect
// of creating a single string with everything concatonated. You now
// end up with a character array containing all of the characters in
// your board. The plus one is because we are using a C literal string
// which means the compiler will append a ‘\0’ at the end.
static char board_one[kBoardWidth*kBoardHeight+1] = {
“abcdefgh”
“ijklmnop”
“xxxxxxxx”
“xxxxxxxx”
“xxxxxxxx”
“xxxxxxxx”
“xxxxxxxx”
“xxxxxxxx”
};
static char board_two[kBoardWidth*kBoardHeight+1] = {
“ABCDEFGH”
“IJKLMNOP”
“yyyyyyyy”
“yyyyyyyy”
“yyyyyyyy”
“yyyyyyyy”
“yyyyyyyy”
“yyyyyyyy”
};
static char board_three[kBoardWidth*kBoardHeight+1] = {
"01234567"
"89012345"
“zzzzzzzz”
“zzzzzzzz”
“zzzzzzzz”
“zzzzzzzz”
“zzzzzzzz”
“zzzzzzzz”
};
static char * boards[kMaxBoards] = {
board_one,
board_two,
board_three,
};
// To access a board you can just use: boards[n] where n is the board
number.
// Sample to access data in a specific board at a specific x,y
char getBoardData( int nBoard, int x, int y ) {
char * pBoard = boards[nBoard]; // or you could call getBoardPtr()
return( *(pBoard+kBoardWidth*y+x) );
}
void test( void ) {
/* Seed the random-number generator with current time so that
* the numbers will be different every time we run.
*/
srand( (unsigned)time( NULL ) );
// Let's just grab 20 random values from the 3 boards and output them.
for( int i=0;i<20;++i ) {
int board = rand()%kMaxBoards;
int x = rand()%kBoardWidth;
int y = rand()%kBoardHeight;
printf( "The character for board %d at %d,%d is
%c\n",board,x,y,getBoardData(board,x,y) );
}
}
The output generated by the test() function is:
The character for board 2 at 0,5 is z
The character for board 2 at 4,6 is z
The character for board 2 at 0,2 is z
The character for board 2 at 6,0 is 6
The character for board 1 at 3,1 is L
The character for board 1 at 0,4 is y
The character for board 0 at 2,5 is x
The character for board 2 at 2,5 is z
The character for board 2 at 6,1 is 4
The character for board 2 at 3,4 is z
The character for board 2 at 7,4 is z
The character for board 0 at 1,7 is x
The character for board 2 at 1,1 is 9
The character for board 1 at 6,7 is y
The character for board 0 at 2,0 is c
The character for board 2 at 0,4 is z
The character for board 2 at 3,5 is z
The character for board 0 at 6,4 is x
The character for board 1 at 3,4 is y
The character for board 2 at 6,7 is z
Remember that all X,Y values are ZERO based (the first element is 0, not
1).
I hope that helps.
Ken Rogoway
Homebrew Software
http://www.homebrewsoftware.com/
-----Original Message-----
From: sdl-bounces at lists.libsdl.org [mailto:sdl-bounces at lists.libsdl.org]
On
Behalf Of neil at cloudsprinter.com
Sent: Saturday, September 01, 2007 3:40 PM
To: sdl at lists.libsdl.org
Subject: [SDL] ot - storing game data
currently i have this setup to hold data about the board in a puzzle game
static char * board_one[] = {
"xxxxxxxx ",
"xxxxxxxx ",
"xxxxxxxx ",
"xxxxxxxx ",
"xxxxxxxx ",
"xxxxxxxx ",
"xxxxxxxx ",
"xxxxxxxx ", };
what i really want is an array of these so i dont have to have the _one so
i
can read data in better and easier.
i understand i am not allowed to have 3d character arrays unless i know
they
are all going to be the same size
currently the size is told to the reading part which then collects the
dtat
from the board_one array.
i am informed i can have 3d character arrays as lon as they are all the
same
size, so i am thinking just have a predfiened array size that tells me the
size of the rest of the array in the first line, so even if the board is
only 5x5 it still sits in a, say, 12x12 array
then i can collect my data like and here is where it all falls apart, how
can i hold the data i want easilly so it is as the board_one definition
above, but only board[1].
hope this all makes a little sence, any suggestions on a way of handling a
3d character array or different data store soloutions always welcome.
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