void ObstacleGenerator::GenEasy(Obstacle *result) {
int n = Random(4);
int i, j;
Obstacle *o = result; // shorthand
switch (n) {
case 0:
i = Random(1, OBS_GRID_SIZE - 1); // i is the row of the bonus
FillRow(result, i + (Random(2) ? 1 : -1)); // horizontal bar next to i
break;
case 1:
i = Random(1, OBS_GRID_SIZE - 1); // i is the column of the bonus
FillCol(result, i + (Random(2) ? 1 : -1)); // vertical bar next to i
break;
case 2:
FillRow(result, 0);
FillRow(result, OBS_GRID_SIZE - 1);
FillCol(result, 0);
FillCol(result, OBS_GRID_SIZE - 1);
break;
default:
i = Random(0, OBS_GRID_SIZE - 2); // i is the row of the bonus
j = Random(0, OBS_GRID_SIZE - 2); // i is the row of the bonus
o->grid[i][j] = o->grid[i+1][j] = o->grid[i][j+1] = o->grid[i+1][j+1] = true;
break;
}
}
void ObstacleGenerator::GenHard(Obstacle *result) {
int n = Random(4);
int i;
int j;
switch (n) {
case 0:
i = Random(0, OBS_GRID_SIZE - 3);
FillRow(result, i);
FillRow(result, i + 1);
FillRow(result, i + 2);
FillRow(result, i + 3);
result->grid[Random(0, OBS_GRID_SIZE)][Random(0, OBS_GRID_SIZE)] = false;
break;
case 1:
i = Random(0, OBS_GRID_SIZE - 3);
FillCol(result, i);
FillCol(result, i + 1);
FillCol(result, i + 2);
FillCol(result, i + 3);
result->grid[Random(0, OBS_GRID_SIZE)][Random(0, OBS_GRID_SIZE)] = false;
break;
case 2:
i = Random(0, OBS_GRID_SIZE);
for (j = 0; j < OBS_GRID_SIZE; j++) {
if (i != j) {
FillCol(result, i);
}
}
result->grid[Random(0, OBS_GRID_SIZE)][Random(0, OBS_GRID_SIZE)] = false;
break;
default:
i = Random(0, OBS_GRID_SIZE);
for (j = 0; j < OBS_GRID_SIZE; j++) {
if (i != j) {
FillRow(result, i);
}
}
result->grid[Random(0, OBS_GRID_SIZE)][Random(0, OBS_GRID_SIZE)] = false;
break;
}
}
void ObstacleGenerator::GenMedium(Obstacle *result) {
int n = Random(3);
int i;
switch (n) {
case 0:
i = Random(1, OBS_GRID_SIZE - 1); // i is the row of the bonus
FillRow(result, i + 1);
FillRow(result, i - 1);
break;
case 1:
i = Random(1, OBS_GRID_SIZE - 1); // i is the column of the bonus
FillCol(result, i - 1);
FillCol(result, i + 1);
break;
default:
i = Random(1, OBS_GRID_SIZE - 1); // i is the column of the bonus
FillRow(result, i);
FillCol(result, i);
break;
}
}
std::vector<std::vector<int>>& SetColAndRowTo0IfElemIs0(std::vector<std::vector<int>>& x)
{
size_t N = x.size();
if (N == 0) {
return x;
}
size_t M = x[0].size();
if (M == 0) {
return x;
}
bool firstRowHas0 = RowHas0(x, 0);
bool firstColHas0 = ColHas0(x, 0);
for (size_t i = 1; i < N; i++) {
bool r0 = x[i][0] == 0;
for (size_t j = 1; j < M; j++) {
bool c0 = x[0][j] == 0;
if (x[i][j] == 0) {
if (!r0) {
r0 = true;
FillRow(x, i, 0, j - 1);
}
if (!c0) {
c0 = true;
FillCol(x, j, 0, i - 1);
}
}
else if (r0 || c0) {
x[i][j] = 0;
}
}
}
if (firstRowHas0)
FillRow(x, 0, 0, M - 1);
if (firstColHas0)
FillCol(x, 0, 0, N - 1);
return x;
}
