// When useAltitude = true, the bounding box is extended
// vertically to altitude = 0 to support FindUnitsInCircle queries
// When false, the bounding box is given for the actor
// at its current altitude
Rectangle CalculateBounds(bool useAltitude)
{
var sizeVector = (PVecInt)size.Value;
var loc = CenterLocation - sizeVector / 2;
var si = Info.Traits.GetOrDefault <SelectableInfo>();
if (si != null && si.Bounds != null && si.Bounds.Length > 2)
{
loc += new PVecInt(si.Bounds[2], si.Bounds[3]);
}
var ios = occupySpace.Value;
if (ios != null)
{
var altitude = ios.CenterPosition.Z * Game.CellSize / 1024;
loc -= new PVecInt(0, altitude);
if (useAltitude)
{
sizeVector = new PVecInt(sizeVector.X, sizeVector.Y + altitude);
}
}
return(new Rectangle(loc.X, loc.Y, sizeVector.X, sizeVector.Y));
}
// When useAltitude = true, the bounding box is extended
// vertically to altitude = 0 to support FindUnitsInCircle queries
// When false, the bounding box is given for the actor
// at its current altitude
Rectangle CalculateBounds(bool useAltitude)
{
var size = (PVecInt)(Size.Value);
var loc = CenterLocation - size / 2;
var si = Info.Traits.GetOrDefault <SelectableInfo>();
if (si != null && si.Bounds != null && si.Bounds.Length > 2)
{
loc += new PVecInt(si.Bounds[2], si.Bounds[3]);
}
var move = Move.Value;
if (move != null)
{
loc -= new PVecInt(0, move.Altitude);
if (useAltitude)
{
size = new PVecInt(size.X, size.Y + move.Altitude);
}
}
return(new Rectangle(loc.X, loc.Y, size.X, size.Y));
}
public override bool Equals(object obj)
{
if (obj == null)
{
return(false);
}
PVecInt o = (PVecInt)obj;
return(o == this);
}
public static IEnumerable <Actor> FindUnitsInCircle(this World world, PPos a, int r)
{
using (new PerfSample("FindUnitsInCircle"))
{
var min = a - PVecInt.FromRadius(r);
var max = a + PVecInt.FromRadius(r);
var actors = world.FindUnits(min, max);
var rect = new Rectangle(min.X, min.Y, max.X - min.X, max.Y - min.Y);
var inBox = actors.Where(x => x.ExtendedBounds.Value.IntersectsWith(rect));
return(inBox.Where(x => (x.CenterLocation - a).LengthSquared < r * r));
}
}
public static int hash_PVecInt(PVecInt i2)
{
return(((i2.X * 5) ^ (i2.Y * 3)) / 4);
}
public static PVecInt Min(PVecInt a, PVecInt b)
{
return new PVecInt(Math.Min(a.X, b.X), Math.Min(a.Y, b.Y));
}
public static int Dot(PVecInt a, PVecInt b)
{
return a.X * b.X + a.Y * b.Y;
}
public static int Dot(PVecInt a, PVecInt b)
{
return(a.X * b.X + a.Y * b.Y);
}
public static PVecInt Min(PVecInt a, PVecInt b)
{
return(new PVecInt(Math.Min(a.X, b.X), Math.Min(a.Y, b.Y)));
}
public static PSubVec ToPSubVec(this PVecInt vec)
{
return(new PSubVec((vec.X * PSubPos.PerPx), (vec.Y * PSubPos.PerPx)));
}