internal BoundingBoxSide(PositionName position, NVector3 extent, UIColor color = null) : base()
{
if (color == null)
{
color = Utilities.AppYellow;
}
Tiles = new List <Tile>();
this.color = color;
this.face = position;
// inline Swift setup() and setupExtensions() functions
size = Size(extent);
var yAxis = Axis.Y.Normal().ToSCNVector3();
var xAxis = Axis.X.Normal().ToSCNVector3();
var zAxis = Axis.Z.Normal().ToSCNVector3();
float halfTurn = (float)Math.PI;
float quarterTurn = (float)Math.PI / 2;
switch (face)
{
case PositionName.Front:
LocalTranslate(new SCNVector3(0, 0, extent.Z / 2));
break;
case PositionName.Back:
LocalTranslate(new SCNVector3(0, 0, -extent.Z / 2));
LocalRotate(SCNQuaternion.FromAxisAngle(yAxis, halfTurn));
break;
case PositionName.Left:
LocalTranslate(new SCNVector3(-extent.X / 2, 0, 0));
LocalRotate(SCNQuaternion.FromAxisAngle(yAxis, -quarterTurn));
break;
case PositionName.Right:
LocalTranslate(new SCNVector3(extent.X / 2, 0, 0));
LocalRotate(SCNQuaternion.FromAxisAngle(yAxis, quarterTurn));
break;
case PositionName.Bottom:
LocalTranslate(new SCNVector3(0, -extent.Y / 2, 0));
LocalRotate(SCNQuaternion.FromAxisAngle(xAxis, halfTurn));
break;
case PositionName.Top:
LocalTranslate(new SCNVector3(0, extent.Y / 2, 0));
LocalRotate(SCNQuaternion.FromAxisAngle(xAxis, -quarterTurn));
break;
}
for (int index = 0; index < 12; index++)
{
var line = new SCNNode();
line.Geometry = Cylinder(lineThickness, extensionLength);
if (index < 4)
{
xAxisExtLines.Add(line);
line.LocalRotate(SCNQuaternion.FromAxisAngle(zAxis, -quarterTurn));
if (index == 2 || index == 3)
{
line.LocalRotate(SCNQuaternion.FromAxisAngle(xAxis, halfTurn));
}
xAxisExtNode.AddChildNode(line);
}
else if (index < 8)
{
yAxisExtLines.Add(line);
if (index == 5 || index == 7)
{
line.LocalRotate(SCNQuaternion.FromAxisAngle(xAxis, halfTurn));
}
yAxisExtNode.AddChildNode(line);
}
else
{
zAxisExtLines.Add(line);
line.LocalRotate(SCNQuaternion.FromAxisAngle(xAxis, -quarterTurn));
zAxisExtNode.AddChildNode(line);
}
}
UpdateExtensions();
HideXAxisExtensions();
HideYAxisExtensions();
HideZAxisExtensions();
AddChildNode(xAxisExtNode);
AddChildNode(yAxisExtNode);
AddChildNode(zAxisExtNode);
}