Identify mines on edges
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parent
c701669fc9
commit
7cdf4dcae6
27
main.c
27
main.c
@ -13,6 +13,18 @@
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enum { UNKNOWN = 0xfe, KILLER = 0xfd };
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static void setadj(puzz_t field, int x, int y, uint8_t from, uint8_t to)
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{
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for (int yp = y - 1; yp < y + 2; ++yp) {
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for (int xp = x - 1; xp < x + 2; ++xp) {
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if (xp < 0 || xp >= WIDTH || yp < 0 || yp >= HEIGHT
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|| (xp == x && yp == y))
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continue;
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field[xp][yp] = field[xp][yp] == from ? to : field[xp][yp];
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}
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}
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}
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int main(void)
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{
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struct timeval tv;
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@ -28,11 +40,22 @@ int main(void)
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puzz_t field;
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memset(field, UNKNOWN, sizeof(field));
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const int x = rand() % WIDTH;
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const int y = rand() % HEIGHT;
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int x = rand() % WIDTH;
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int y = rand() % HEIGHT;
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if (probe(x, y, field) == DEAD) {
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field[x][y] = KILLER;
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fprintf(stderr, "Dead\n");
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} else {
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for (y = 0; y < HEIGHT; ++y) {
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for (x = 0; x < WIDTH; ++x) {
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if (field[x][y] == UNKNOWN || field[x][y] == MINE)
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continue;
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const int mines = countadj(field, x, y, MINE);
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const int unknowns = countadj(field, x, y, UNKNOWN);
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if (mines + unknowns == field[x][y])
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setadj(field, x, y, UNKNOWN, MINE);
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}
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}
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}
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putchar('\n');
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