public HashSet <Vector2Int> CalculateFov(Vector2Int fovCenter, int rayLength, Func <Vector2Int, bool> isWalkable)
{
var visibleTiles = new HashSet <Vector2Int>();
HashSet <Vector2Int> outlineToCastRaysOn = _fovSquareOutlineCreator.CreateSquareOutline(fovCenter, rayLength);
foreach (Vector2Int point in outlineToCastRaysOn)
{
IList <Vector2Int> bresenhamLineTiles = _bresenhamLineCreator.GetBresenhamLine(fovCenter.x, fovCenter.y, point.x, point.y, rayLength, isWalkable);
visibleTiles.UnionWith(bresenhamLineTiles);
}
IEnumerable <Vector2Int> visibleTilesFromPostProcessing =
_basicFovPostprocessor.PostprocessBasicFov(visibleTiles, fovCenter, rayLength, isWalkable);
visibleTiles.UnionWith(visibleTilesFromPostProcessing);
return(visibleTiles);
}
public HashSet <Position> CalculateFov(Position observerPosition, int sightRange, Func <Position, bool> isPassingLight)
{
var positionsInFov = new HashSet <Position>();
IEnumerable <Position> outlineToCastRaysOn = _fovSquareOutlineCreator.CreateSquareOutline(observerPosition, sightRange);
foreach (Position point in outlineToCastRaysOn)
{
IList <Position> bresenhamLineTiles = _rasterLineCreator
.GetRasterLine(observerPosition.x, observerPosition.y, point.x, point.y, isPassingLight, sightRange, true);
positionsInFov.UnionWith(bresenhamLineTiles);
}
IEnumerable <Position> visibleTilesFromPostProcessing =
_basicFovPostprocessor.PostprocessBasicFov(positionsInFov, observerPosition, sightRange, isPassingLight);
positionsInFov.UnionWith(visibleTilesFromPostProcessing);
return(positionsInFov);
}
