stnkrisna / flow Goto Github PK

flow::Field field(10, 8);

char map[] = "\
wwwwwwwwww\
w........w\
www.ww.www\
www.ww.www\
www.ww.www\
www.ww.www\
w........w\
w........w";

for (auto cell = field.begin(); cell != field.end(); ++cell) {
  cell->setAllowDiagonal(true);
  switch (map[cell.idx]) {
    case '.':
      cell->setEntryDir(flow::Directions::NORTH |
              flow::Directions::EAST |
              flow::Directions::SOUTH |
              flow::Directions::WEST);
      break;
    case 'w':
      cell->setEntryDir(0);
      cell->setAllowDiagonal(false);
      break;
  }
}

char map[] = "\
wwwwwwwwww\
w........w\
www4ww1www\
www4ww1www\
www4ww1www\
www4ww1www\
w........w\
w........w";

for (auto cell = field.begin(); cell != field.end(); ++cell) {
  cell->setAllowDiagonal(true);
  switch (map[cell.idx]) {
    case '.':
      cell->setEntryDir(flow::Directions::NORTH |
              flow::Directions::EAST |
              flow::Directions::SOUTH |
              flow::Directions::WEST);
      break;
    case '1':
      cell->setEntryDir(flow::Directions::NORTH);
      break;
    case '4':
      cell->setEntryDir(flow::Directions::SOUTH);
      break;
    case 'w':
      cell->setEntryDir(0);
      cell->setAllowDiagonal(false);
      break;
  }
}

// Or use the "at" function to get a specific cell
field.at(1, 0).setEntryDir(flow::Directions::NORTH |
        flow::Directions::EAST |
        flow::Directions::SOUTH |
        flow::Directions::WEST);

// Begin-end loop
for (auto itr = field.begin(); itr != field.end(); ++itr) {
  // Print the index of the iterator
  std::cout << itr.idx << std::endl;

  // You can use the arrow operator (->) to access the cell
  itr->setEntryDir(flow::Directions::NORTH |
    flow::Directions::EAST |
    flow::Directions::SOUTH |
    flow::Directions::WEST);
}

// Range based loop
for (auto& cell : field) {
  // Convert every cell to a wall
  cell.setEntryDir(0);
}

for (auto cell : field) {
  // Everything is now a wall
  std::cout << cell.isWall() << " ";
}

// BYO vector object
if (enemy.position == enemy.desiredPos) {
  uint16_t newPos_x = 0;
  uint16_t newPos_y = 0;

  field.getNextCell(0, (int)enemy.pos.x, (int)enemy.pos.y, &newPos_x, &newPos_y);

  enemy.desiredPos.x = newPos_x;
  enemy.desiredPos.y = newPos_y;
}

// BYO vector object
Vector2 enemyDir;

// Get the normalized vector of the direction
field.getDirection(0, (int)enemy.pos.x, (int)enemy.pos.y, &enemyDir.x, &enemyDir.y);

// BYO vector math
enemy.pos += enemy.speed * enemyDir;