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Implement selection of game seeds, by reusing the config box

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mechanism I've just invented (the midend handles the standard game
selection configuration). Each game is now required to validate its
own seed data before attempting to base a game on it and potentially
confusing itself.

[originally from svn r4186]
This commit is contained in:
Simon Tatham
2004-05-03 08:51:31 +00:00
parent eb88ee0973
commit 6e42ddd31b
9 changed files with 257 additions and 39 deletions
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32
cube.c
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@ -285,8 +285,8 @@ static void enum_grid_squares(game_params *params,
if (solid->order == 4) {
int x, y;
for (x = 0; x < params->d1; x++)
for (y = 0; y < params->d2; y++) {
for (y = 0; y < params->d2; y++)
for (x = 0; x < params->d1; x++) {
struct grid_square sq;
sq.x = (float)x;
@ -809,6 +809,34 @@ static struct solid *transform_poly(const struct solid *solid, int flip,
return ret;
}
char *validate_seed(game_params *params, char *seed)
{
int area = grid_area(params->d1, params->d2, solids[params->solid]->order);
int i, j;
i = (area + 3) / 4;
for (j = 0; j < i; j++) {
int c = seed[j];
if (c >= '0' && c <= '9') continue;
if (c >= 'A' && c <= 'F') continue;
if (c >= 'a' && c <= 'f') continue;
return "Not enough hex digits at start of string";
/* NB if seed[j]=='\0' that will also be caught here, so we're safe */
}
if (seed[i] != ':')
return "Expected ':' after hex digits";
i++;
do {
if (seed[i] < '0' || seed[i] > '9')
return "Expected decimal integer after ':'";
i++;
} while (seed[i]);
return NULL;
}
game_state *new_game(game_params *params, char *seed)
{
game_state *state = snew(game_state);