public BoxWithPoints GetBoundingBoxPointsRotated()
{
BoundingBoxNonAligned box = new BoundingBoxNonAligned(GetBoundingBoxNonRotated(), Rotation);
BoxWithPoints result = box.GetPoints();
return(result);
}
public BoxWithPoints(BoxWithPoints toCopy)
{
P1 = toCopy.P1;
P2 = toCopy.P2;
P3 = toCopy.P3;
P4 = toCopy.P4;
}
public BoxWithPoints GetPoints()
{
Vector2 p1, p2, p3, p4;
p1 = new Vector2(CenterX - Width / 2, CenterY + Height / 2);
p2 = new Vector2(CenterX - Width / 2, CenterY - Height / 2);
p3 = new Vector2(CenterX + Width / 2, CenterY - Height / 2);
p4 = new Vector2(CenterX + Width / 2, CenterY + Height / 2);
BoxWithPoints result = new BoxWithPoints(p1, p2, p3, p4);
result.RotateAroundPoint(Theta, new Vector2(CenterX, CenterY));
return(result);
}
public bool Intersects(BoundingBoxNonAligned box)
{
// Work with copies of the boxes instead of modifying the originals
BoundingBoxNonAligned thisCopy = new BoundingBoxNonAligned(this);
BoundingBoxNonAligned target = new BoundingBoxNonAligned(box);
// Use thisCopy's point as the origin
Vector2 origin = new Vector2(thisCopy.CenterX, thisCopy.CenterY);
thisCopy.CenterX -= origin.X;
thisCopy.CenterY -= origin.Y;
target.CenterX -= origin.X;
target.CenterY -= origin.Y;
// Rotate so that box 1 is axis aligned
BoxWithPoints thisPoints = thisCopy.GetPoints();
BoxWithPoints targetPoints = target.GetPoints();
float angle = -target.Theta;
thisPoints.RotateAroundOrigin(angle);
targetPoints.RotateAroundOrigin(angle);
// Check if any points in box 1 are contained within box 2
// At this point, assume points are from top left and go clockwise
// TODO: Add some kind of checking to the box with points so we don't have to assume
if (targetPoints.PointIsInside(thisPoints.P1))
{
return(true);
}
if (targetPoints.PointIsInside(thisPoints.P2))
{
return(true);
}
if (targetPoints.PointIsInside(thisPoints.P3))
{
return(true);
}
if (targetPoints.PointIsInside(thisPoints.P4))
{
return(true);
}
return(false);
}
