public static bool IsSightBlocked(HitableObject origin, HitableObject target, int lineWidth)
{
if (origin.InteriorID != target.InteriorID)
{
return(true);
}
Point originPoint = origin.Position.ToPoint();
Point targetPoint = target.Position.ToPoint();
Rect unionRect = ShapeCollision.ConvertLineToRect(originPoint, targetPoint);
List <HitableObject> hittedObjects = GetHittedObjects(unionRect, origin.InteriorID, origin);
Vector2[] polyRect = GeometryUtils.GetRectangleFromLine(originPoint, targetPoint, lineWidth);
foreach (var hitableObject in hittedObjects)
{
if (hitableObject != target && ShapeCollision.RectIntersectsPoly(hitableObject.HitBoxBounds, polyRect))
{
return(true);
}
}
// Check if blocks are of type hitable && if they intersect with the polyRect
Point topLeft = GeometryUtils.GetChunkPosition(unionRect.Left, unionRect.Top, WorldGrid.BlockSize.X, WorldGrid.BlockSize.Y);
Point bottomRight = GeometryUtils.GetChunkPosition(unionRect.Right, unionRect.Bottom, WorldGrid.BlockSize.X, WorldGrid.BlockSize.Y);
for (int blockX = topLeft.X; blockX <= bottomRight.X; blockX++)
{
for (int blockY = topLeft.Y; blockY <= bottomRight.Y; blockY++)
{
if (IsBlockHitable(blockX, blockY, origin.InteriorID) && ShapeCollision.RectIntersectsPoly(new Rect(blockX * WorldGrid.BlockSize.X, blockY * WorldGrid.BlockSize.Y, WorldGrid.BlockSize.X, WorldGrid.BlockSize.Y), polyRect))
{
return(true);
}
}
}
return(false);
}
public static bool IsSightBlocked(HitableObject origin, HitableObject target)
{
if (origin.InteriorID != target.InteriorID)
{
return(true);
}
Vector2 originVector = origin.Position.ToVector();
Vector2 targetVector = target.Position.ToVector();
Rect unionRect = ShapeCollision.ConvertLineToRect(originVector, targetVector);
List <HitableObject> hittedObjects = GetHittedObjects(unionRect, origin.InteriorID, origin);
foreach (var hitableObject in hittedObjects)
{
if (hitableObject != target && ShapeCollision.LineIntersectsRectangle(originVector, targetVector, hitableObject.HitBoxBounds))
{
return(true);
}
}
// Check if blocks are of type hitable
Point topLeft = GeometryUtils.GetChunkPosition(unionRect.Left, unionRect.Top, WorldGrid.BlockSize.X, WorldGrid.BlockSize.Y);
Point bottomRight = GeometryUtils.GetChunkPosition(unionRect.Right, unionRect.Bottom, WorldGrid.BlockSize.X, WorldGrid.BlockSize.Y);
for (int blockX = topLeft.X; blockX <= bottomRight.X; blockX++)
{
for (int blockY = topLeft.Y; blockY <= bottomRight.Y; blockY++)
{
if (IsBlockHitable(blockX, blockY, origin.InteriorID) && ShapeCollision.LineIntersectsRectangle(originVector, targetVector, new Rect(blockX * WorldGrid.BlockSize.X, blockY * WorldGrid.BlockSize.Y, WorldGrid.BlockSize.X, WorldGrid.BlockSize.Y)))
{
return(true);
}
}
}
return(false);
}