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More defensive-coding fixes from James H.

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[originally from svn r8605]
This commit is contained in:
Simon Tatham
2009-07-01 22:01:21 +00:00
parent 652f03a8ae
commit cfdba00313
4 changed files with 7 additions and 2 deletions
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1
cube.c
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@ -996,6 +996,7 @@ static void free_game(game_state *state)
sfree(state->grid->squares);
sfree(state->grid);
}
sfree(state->bluemask);
sfree(state->facecolours);
sfree(state);
}

4
filling.c
View File

@ -1500,7 +1500,7 @@ static void draw_grid(drawing *dr, game_drawstate *ds, game_state *state,
if (flashy || !shading) {
/* clear all background flags */
} else if (ui->sel && ui->sel[y*w+x]) {
} else if (ui && ui->sel && ui->sel[y*w+x]) {
flags |= HIGH_BG;
} else if (v) {
int size = dsf_size(ds->dsf_scratch, y*w+x);
@ -1509,7 +1509,7 @@ static void draw_grid(drawing *dr, game_drawstate *ds, game_state *state,
else if (size > v)
flags |= ERROR_BG;
}
if (ui->cur_visible && x == ui->cur_x && y == ui->cur_y)
if (ui && ui->cur_visible && x == ui->cur_x && y == ui->cur_y)
flags |= CURSOR_SQ;
/*

3
loopy.c
View File

@ -1513,6 +1513,7 @@ static void add_full_clues(game_state *state, random_state *rs)
face_scores = snewn(num_faces, struct face_score);
for (i = 0; i < num_faces; i++) {
face_scores[i].random = random_bits(rs, 31);
face_scores[i].black_score = face_scores[i].white_score = 0;
}
/* Colour a random, finite face white. The infinite face is implicitly
@ -3232,6 +3233,8 @@ static game_state *execute_move(game_state *state, char *move)
while (*move) {
i = atoi(move);
if (i < 0 || i >= newstate->game_grid->num_edges)
goto fail;
move += strspn(move, "1234567890");
switch (*(move++)) {
case 'y':

1
pattern.c
View File

@ -1045,6 +1045,7 @@ static game_drawstate *game_new_drawstate(drawing *dr, game_state *state)
ds->visible = snewn(ds->w * ds->h, unsigned char);
ds->tilesize = 0; /* not decided yet */
memset(ds->visible, 255, ds->w * ds->h);
ds->cur_x = ds->cur_y = 0;
return ds;
}