public bool CanBuildBuilding(OffsetAndRotation offsetAndRotation, RotatedBuilding rotatedBuilding)
{
for (int x = 0; x < rotatedBuilding.Width; x++)
{
for (int y = 0; y < rotatedBuilding.Height; y++)
{
var tilePos = offsetAndRotation.Offset + new Integer2(x, y);
var tile = this[tilePos];
if (tile == null)
{
return(false);
}
string resourceAtPos = rotatedBuilding[x, y];
if (resourceAtPos == null)
{
continue;
}
if (tile.Resource != resourceAtPos)
{
return(false);
}
}
}
return(true);
}
public IEnumerable <OffsetAndRotation> AllBuildableLocations(BuildingTemplate buildingTemplate, IntegerRect?rect = null)
{
int boardWidth = Width;
int boardHeight = Height;
var boundingRect = rect ?? new IntegerRect(0, 0, boardWidth, boardHeight);
foreach (var orientation in buildingTemplate.MeaningfulOrientations())
{
var rotatedBuilding = new RotatedBuilding(buildingTemplate, orientation);
int availableXOffset = boundingRect.xMax - rotatedBuilding.Width + 1;
int availableYOffset = boundingRect.yMax - rotatedBuilding.Height + 1;
for (int buildingOffsetX = boundingRect.x; buildingOffsetX < availableXOffset; buildingOffsetX++)
{
for (int buildingOffsetY = boundingRect.y; buildingOffsetY < availableYOffset; buildingOffsetY++)
{
var buildLocation = new OffsetAndRotation(new Integer2(buildingOffsetX, buildingOffsetY), orientation);
if (CanBuildBuilding(buildLocation, rotatedBuilding))
{
yield return(buildLocation);
}
}
}
}
}