public static bool Equals(Rect rect1, Rect rect2)
{
if (rect1.IsEmpty)
{
return rect2.IsEmpty;
}
return (((rect1.X.Equals(rect2.X) && rect1.Y.Equals(rect2.Y)) && rect1.Width.Equals(rect2.Width)) && rect1.Height.Equals(rect2.Height));
}
static Rect()
{
s_empty = new Rect
{
x = float.PositiveInfinity,
y = float.PositiveInfinity,
width = float.NegativeInfinity,
height = float.NegativeInfinity
};
}
public WMOHolder(WMORoot wmo)
{
WMO = wmo;
var min = wmo.Bounds.Min;
var max = wmo.Bounds.Max;
var minPoint = new Point(min.X, min.Y);
var maxPoint = new Point(max.X, max.Y);
Bounds = new Rect(minPoint, maxPoint);
}
public M2Holder(M2 model)
{
Model = model;
var min = model.Bounds.Min;
var max = model.Bounds.Max;
var minPoint = new Point(min.X, min.Y);
var maxPoint = new Point(max.X, max.Y);
Bounds = new Rect(minPoint, maxPoint);
}
public static Rect Offset(Rect rect, float offsetX, float offsetY)
{
rect.Offset(offsetX, offsetY);
return rect;
}
public static Rect Union(Rect rect, Point point)
{
rect.Union(new Rect(point, point));
return rect;
}
public static Rect Union(Rect rect1, Rect rect2)
{
rect1.Union(rect2);
return rect1;
}
public void Union(Rect rect)
{
if (IsEmpty)
{
this = rect;
}
else if (!rect.IsEmpty)
{
float num = Math.Min(Left, rect.Left);
float num2 = Math.Min(Top, rect.Top);
if ((rect.Width == float.PositiveInfinity) || (Width == float.PositiveInfinity))
{
width = float.PositiveInfinity;
}
else
{
float num3 = Math.Max(Right, rect.Right);
width = Math.Max(num3 - num, 0.0f);
}
if ((rect.Height == float.PositiveInfinity) || (Height == float.PositiveInfinity))
{
height = float.PositiveInfinity;
}
else
{
float num4 = Math.Max(Bottom, rect.Bottom);
height = Math.Max((num4 - num2), 0.0f);
}
x = num;
y = num2;
}
}
private void CalculateBounds(IEnumerable<Vector3> vertices)
{
var min = new Vector3(float.MaxValue);
var max = new Vector3(float.MinValue);
foreach (var vertex in vertices)
{
min = Vector3.Min(min, vertex);
max = Vector3.Max(max, vertex);
}
Bounds = new Rect(min.X, min.Y, (max.X - min.X), (max.Y - min.Y));
}
/// <summary>
/// Checks this Map for LOS between two positions.
/// </summary>
/// <param name="pos1">The start position.</param>
/// <param name="pos2">The end position.</param>
/// <returns>True if there is a clear LOS between the points.</returns>
internal bool HasLOS(Vector3 pos1, Vector3 pos2)
{
// The max distance check has already been performed.
var tile1Id = TileIdentifier.ByPosition(MapId, pos1);
if (tile1Id == null)
{
log.Warn("Got an invalid Tile Coord for {0}. Assuming LOS for now.", pos1);
return true;
}
var tile2Id = TileIdentifier.ByPosition(MapId, pos2);
if (tile2Id == null)
{
log.Warn("Got an invalid Tile Coord for {0}. ", pos1);
return true;
}
Tile tile;
if (!TryGetTile(tile1Id, out tile))
{
log.Error("Unable to load the given tile: {0} to check for LOS. Assuming LOS for now.", tile1Id);
return true;
}
// if the positions are on the same tile, things get easier
if (tile1Id == tile2Id)
{
return tile.HasLOS(pos1, pos2);
}
// else the LOS line segment crosses tile boundaries (possibly more than one.)
var lineRect = new Rect(new Point(pos1.X, pos1.Y), new Point(pos2.X, pos2.Y));
var tile1Rect = tile.Bounds;
lineRect.Intersect(tile1Rect);
// we know that pos1 was internal to tile1, so lineRect contains pos1 and the new pos2.
var newPoint = lineRect.BottomRight;
var newPos2 = new Vector3(newPoint.X, newPoint.Y, pos2.Z);
if (!tile.HasLOS(pos1, newPos2)) return false;
// clip the LOS line segment against the intervening tiles until tile2 is reached
pos1 = newPos2;
var dir = (pos2 - pos1);
dir.Normalize();
while(true)
{
// advance the start position by a small amount to ensure that we're on the new tile
pos1 += 1e-3f*dir;
tile1Id = TileIdentifier.ByPosition(MapId, pos1);
if (tile1Id == null)
{
log.Warn("Got an invalid Tile Coord for {0}. Assuming LOS for now.", pos1);
return true;
}
if (!TryGetTile(tile1Id, out tile))
{
log.Error("Unable to load the given tile: {0} to check for LOS. Assuming LOS for now.", tile1Id);
return true;
}
if (tile1Id == tile2Id)
{
return tile.HasLOS(pos1, pos2);
}
lineRect = new Rect(new Point(pos1.X, pos1.Y), new Point(pos2.X, pos2.Y));
tile1Rect = tile.Bounds;
lineRect.Intersect(tile1Rect);
newPoint = lineRect.BottomRight;
newPos2 = new Vector3(newPoint.X, newPoint.Y, pos2.Z);
if (!tile.HasLOS(pos1, newPos2)) return false;
pos1 = newPos2;
}
}
public static ClipperResponse ClipAgainst(WMORoot wmo, Rect bounds, out List<Vector3> vertices, out List<int> indices)
{
vertices = new List<Vector3>();
indices = new List<int>();
return ClipperResponse.AllClipped;
}
public bool IntersectsWith(Rect rect)
{
if (IsEmpty || rect.IsEmpty)
{
return false;
}
return ((((rect.Left <= Right) && (rect.Right >= Left)) && (rect.Top <= Bottom)) && (rect.Bottom >= Top));
}
public bool Contains(Rect rect)
{
if (IsEmpty || rect.IsEmpty)
{
return false;
}
return ((((x <= rect.x) && (y <= rect.y)) &&
((x + width) >= (rect.x + rect.width))) && ((y + height) >= (rect.y + rect.height)));
}
public static void Write(this BinaryWriter writer, Rect rect)
{
writer.Write(rect.X);
writer.Write(rect.Y);
writer.Write(rect.Width);
writer.Write(rect.Height);
}
public static Rect Inflate(Rect rect, Size size)
{
rect.Inflate(size.Width, size.Height);
return rect;
}
public static Rect Inflate(Rect rect, float width, float height)
{
rect.Inflate(width, height);
return rect;
}
public bool Equals(Rect value)
{
return Equals(this, value);
}
private static bool Intersect(Rect chunkRect, ref Vector3 vertex0, ref Vector3 vertex1, ref Vector3 vertex2)
{
if (chunkRect.Contains(vertex0.X, vertex0.Y)) return true;
if (chunkRect.Contains(vertex1.X, vertex1.Y)) return true;
if (chunkRect.Contains(vertex2.X, vertex2.Y)) return true;
// Check if any of the Chunk's corners are contained in the triangle
if (Intersection.PointInTriangle2DXY(chunkRect.TopLeft, vertex0, vertex1, vertex2)) return true;
if (Intersection.PointInTriangle2DXY(chunkRect.TopRight, vertex0, vertex1, vertex2)) return true;
if (Intersection.PointInTriangle2DXY(chunkRect.BottomLeft, vertex0, vertex1, vertex2)) return true;
if (Intersection.PointInTriangle2DXY(chunkRect.BottomRight, vertex0, vertex1, vertex2)) return true;
// Check if any of the triangle's line segments intersect the chunk's bounds
if (Intersection.IntersectSegmentRectangle2DXY(chunkRect, vertex0, vertex1)) return true;
if (Intersection.IntersectSegmentRectangle2DXY(chunkRect, vertex0, vertex2)) return true;
if (Intersection.IntersectSegmentRectangle2DXY(chunkRect, vertex1, vertex2)) return true;
return false;
}
public void Intersect(Rect rect)
{
if (!IntersectsWith(rect))
{
this = Empty;
}
else
{
float num = Math.Max(Left, rect.Left);
float num2 = Math.Max(Top, rect.Top);
width = Math.Max(Math.Min(Right, rect.Right) - num, 0.0f);
height = Math.Max(Math.Min(Bottom, rect.Bottom) - num2, 0.0f);
x = num;
y = num2;
}
}
public static bool IntersectSegmentRectangle2DXY(Rect rect, Vector3 point1, Vector3 point2)
{
var rectMin = new Vector2(rect.TopLeft.X, rect.TopLeft.Y);
var rectMax = new Vector2(rect.BottomRight.X, rect.BottomRight.Y);
var point12d = new Vector2(point1.X, point2.X);
var point22d = new Vector2(point2.X, point2.Y);
return IntersectSegmentRectangle2D(rectMin, rectMax, point12d, point22d);
}
public static Rect Intersect(Rect rect1, Rect rect2)
{
rect1.Intersect(rect2);
return rect1;
}