void AddNewState(int index, int x, int y, int dx, int dy)
{
int accessX = x - dx;
int accessY = y - dy;
int boxX = x + dx;
int boxY = y + dy;
ushort[] newState = new ushort[map.boxesCount + 1];
Array.Copy(state, newState, map.boxesCount);
newState[map.boxesCount] = newState[index];
newState[index] = map.Pos2XY(boxX, boxY);
Array.Sort(newState, 0, map.boxesCount);
newStates[newStatesCount] = newState;
accessXYs[newStatesCount] = map.Pos2XY(accessX, accessY);
++newStatesCount;
}
void ExploreNext(int x, int y, ushort prevXY, int newDist)
{
if (x < 0 || x >= map.width || y < 0 || y >= map.height)
{
return;
}
int pos = map.XY2Pos(x, y);
if ((cells[pos] & O_UNEXPLORABLE_MASK) != 0)
{
return;
}
cells[pos] |= O_EXPLORED;
distance[pos] = newDist;
backtrace[pos] = prevXY;
explore.Enqueue(map.Pos2XY(x, y));
}
