/// <summary>
/// Create a circular area to a given map
/// </summary>
/// <param name="map">The map where the area should be placed on</param>
/// <param name="rowIndex">Tile row index</param>
/// <param name="columnIndex">Tile column index</param>
/// <param name="rowCount">Number of rows per grid</param>
/// <param name="columnCount">Number of columns per grid</param>
/// <param name="radius">Radius of the circle</param>
/// <param name="tileSize">Size of a tile in pixel</param>
/// <param name="metersPerTile">Size of a tile in meter</param>
/// <param name="tileIdValue">Tile id value for the circular area</param>
/// <param name="tileFlag">Tile flag</param>
/// <param name="allowEdgeManipulation">Allows areas to overlap tiles from other maps</param>
/// <returns>Returns the number of changed tiles</returns>
private int CreateCircleArea(Tile[] map, int rowIndex, int columnIndex, int rowCount, int columnCount, int radius, int tileSize, float metersPerTile, ushort tileIdValue, byte tileFlag, bool allowEdgeManipulation)
{
int modified = 0;
int minRadiusTile = (int)Math.Ceiling(radius / metersPerTile);
int minRadiusPx = minRadiusTile * tileSize;
int x = columnIndex * tileSize;
int y = rowIndex * tileSize;
for (int r = rowIndex - minRadiusTile; r < rowIndex + minRadiusTile; r++)
{
for (int c = columnIndex - minRadiusTile; c < columnIndex + minRadiusTile; c++)
{
int realRow = r;
int realColumn = c;
if (TileMathHelper.IsOutOfRange(r, c, rowCount, columnCount))
{
if (allowEdgeManipulation)
{
realRow = TileMathHelper.FixTileIndex(r, rowCount);
realColumn = TileMathHelper.FixTileIndex(c, columnCount);
}
else
{
continue;
}
}
int distance = TileMathHelper.GetDistance(x, y, c * tileSize, r * tileSize);
if (distance <= minRadiusPx)
{
int id = TileMathHelper.ToIndex(realRow, realColumn, columnCount);
if (map[id].Id == 0)
{
map[id] = new Tile(tileIdValue, tileFlag);
modified++;
}
}
}
}
return(modified);
}
/// <summary>
/// Create a circular area to a given map
/// </summary>
/// <param name="mapIndex">Index of the map</param>
/// <param name="maps">Current grids</param>
/// <param name="edgeOverrides">Current edge override maps</param>
/// <param name="rowIndex">Tile row index</param>
/// <param name="columnIndex">Tile column index</param>
/// <param name="rowCount">Number of rows per grid</param>
/// <param name="columnCount">Number of columns per grid</param>
/// <param name="radius">Radius of the circle</param>
/// <param name="tileSize">Size of a tile in pixel</param>
/// <param name="metersPerTile">Size of a tile in meter</param>
/// <param name="tileIdValue">Tile id value for the circular area</param>
/// <param name="tileFlags">Tile flags</param>
/// <param name="allowEdgeOverflow">Allows areas to overlap tiles from other maps</param>
/// <param name="useEdgeNoise">Adds edge noise to the generated area</param>
/// <returns>Returns the number of changed tiles</returns>
private int CreateCircleArea(int mapIndex, Tile[][] maps, Tile[][] edgeOverrides, int rowIndex, int columnIndex, int rowCount, int columnCount, int radius, int tileSize, float metersPerTile, ushort tileIdValue, byte tileFlags, bool allowEdgeOverflow, bool useEdgeNoise)
{
int modified = 0;
int minRadiusTile = (int)Math.Ceiling(radius / metersPerTile);
int minRadiusPx = minRadiusTile * tileSize;
int x = columnIndex * tileSize;
int y = rowIndex * tileSize;
for (int r = rowIndex - minRadiusTile; r < rowIndex + minRadiusTile; r++)
{
for (int c = columnIndex - minRadiusTile; c < columnIndex + minRadiusTile; c++)
{
int currentMapIndex = mapIndex;
int realRow = r;
int realColumn = c;
if (TileMathHelper.IsOutOfRange(r, c, rowCount, columnCount))
{
if (allowEdgeOverflow)
{
currentMapIndex = TileMathHelper.GetMapIndex(r, c, rowCount, columnCount, currentMapIndex);
if (currentMapIndex >= 0)
{
realRow = TileMathHelper.FixTileIndex(r, rowCount);
realColumn = TileMathHelper.FixTileIndex(c, columnCount);
}
else
{
continue;
}
}
else
{
continue;
}
}
int distance = TileMathHelper.GetDistance(x, y, c * tileSize, r * tileSize);
if (distance <= minRadiusPx)
{
int id = TileMathHelper.ToIndex(realRow, realColumn, columnCount);
if (mapIndex == currentMapIndex)
{
if (maps[currentMapIndex][id].Id == 0)
{
maps[currentMapIndex][id] = new Tile(tileIdValue, tileFlags);
modified++;
}
}
else
{
if (edgeOverrides[currentMapIndex][id].Id == 0)
{
edgeOverrides[currentMapIndex][id] = new Tile(tileIdValue, tileFlags);
}
}
}
}
}
return(modified);
}