// checks immediate adjacent mapSquares (NESW or All, depending on itr passed) for a MSFlag,
// if the number of flagged MS is >= max_states, returns true, otherwise false
public bool ChkAdjacentForMState(ref AreaMap map, ref Point sqr, MSFlag state, MSFlagIndex state_index, int dir_itr, int max_states)
{
int states_found = 0;
Point ms_chk, dir_offset;
dir_offset = ms_chk = Point.Zero;
for (int dir = 0; dir < Globals.NumDirects; dir += dir_itr)
{
ms_chk = sqr;
dir_offset = Globals.Directions[dir];
ms_chk = Globals.AddPoints(ref ms_chk, ref dir_offset);
if (OffMap(ms_chk.X, ms_chk.Y))
{
continue;
}
else if (map.ChkMSForState(ref map.MSGrid[ms_chk.Y][ms_chk.X], state, state_index))
{
states_found++;
}
}
if (states_found >= max_states)
{
return(true);
}
return(false);
}
/// <summary>
/// Returns true if the given map location exists and is not
/// blocked by a barrier
/// </summary>
/// <param name="column">column position(x)</param>
/// <param name="row">row position(y)</param>
static private bool IsOpen(ref AreaMap search_map, int column, int row)
{
if (!search_map.OffMap(column, row))
{
if (column == goal.X)
{
if (row == goal.Y)
{
return(true);
}
}
if (search_map.ChkMSForState(ref search_map.MSGrid[row][column], MSFlag.BL, MSFlagIndex.BL_ST))
{
return(true);
}
if (ignoreHallWalls)
{
if (search_map.MSGrid[row][column].RoomID == -1)
{
return(true);
}
}
}
return(false);
}
public bool ChkLinearPathForFlagged(ref AreaMap new_map, ref Point path_start, Point path_end,
Directions direction, MSFlag flag, MSFlagIndex f_index, ref Point destination)
{
Point next = path_start;
Point step = Point.Zero;
step.X = Globals.Directions[(int)direction].X; step.Y = Globals.Directions[(int)direction].Y; // <----
while (next != path_end)
{
next = Globals.AddPoints(ref next, ref step);
if (new_map.OffMap((int)next.X, (int)next.Y))
{
return(false);
}
else if (next == destination)
{
return(true);
}
else if (!new_map.ChkMSForState(ref new_map.MSGrid[(int)next.Y][(int)next.X], flag, f_index))
{
return(false);
}
}
return(true);
}
