public bool CheckLOS(Point A, Point B)
{
Vector2 a = HexMap.ToScreenLocation(A);
Vector2 b = HexMap.ToScreenLocation(B);
Vector2 broadened;
Vector2 dir = Vector2.Normalize(b - a);
Vector2 perpDir = new Vector2(dir.Y, -dir.X);
int clearance = (int)(HexMap.TileHalfWidth * 0.4f); // the width of the ray
a += (HexMap.TileHalfHeight + 6) * dir; //start raycasting at the tile border + some
int targetDist = (int)Vector2.Distance(b, a);
for (int i = 0; i < targetDist; i++)
{
broadened = i % 2 == 1 ? a + clearance * perpDir : a - clearance * perpDir; // check collision at clearance distance perpendicular to the ray (+odd, -even)
Point coord = HexMap.ToMapCoordinate(broadened);
if (coord.X >= 0 && coord.Y >= 0 && coord.X < HexMap.Layout.GetLength(1) && coord.Y < HexMap.Layout.GetLength(0))
{
char tileChar = HexMap.Layout[coord.Y, coord.X];
if (tileChar != '.' && tileChar != '\'' && !(tileChar >= 'a' && tileChar <= 'i') && !(tileChar >= '1' && tileChar <= '9'))
{
return(false);
}
else
{
a += dir;
}
}
else
{
return(false);
}
}
return(true);
}
//---------------------------Methods----------------------------------------
public void FindPath()
{
Point currentTile = ParentMap.ToMapCoordinate(Location);
if (ParentMap.GoalPoints.Length > 0 && GoalPointIndex < ParentMap.GoalPoints.Length)
{
//ParentMap.Pathfinder.InitializeTiles();
Path = ParentMap.Pathfinder.FindPath(currentTile, ParentMap.GoalPoints[GoalPointIndex]);
OrigPath.Clear();
OrigPath.AddRange(Path);
if (Path.Count > 1)
{
nextWaypoint = 1;
}
else
{
nextWaypoint = 0;
}
}
}
