public void OnEdit(IChiselHandles handles)
{
// Store our allocated handles in generatorState to avoid reallocating them every frame
var cylinderHandles = handles.generatorState as CylinderHandles;
if (cylinderHandles == null)
{
cylinderHandles = new CylinderHandles();
cylinderHandles.Init(handles, this);
handles.generatorState = cylinderHandles;
}
cylinderHandles.Update(handles, this);
// Render vertical lines at the horizon of the cylinder
handles.DoRenderHandles(new[] { cylinderHandles.verticalHandle1, cylinderHandles.verticalHandle2 });
// Move the cylinder top/bottom up/down
var prevModified = handles.modified;
{
handles.DoSlider1DHandle(ref cylinderHandles.bottomPoint, -cylinderHandles.normal, cylinderHandles.bottomHandles);
var haveFocus = handles.lastHandleHadFocus;
handles.DoSlider1DHandle(ref cylinderHandles.topPoint, cylinderHandles.normal, cylinderHandles.topHandles);
haveFocus = haveFocus || handles.lastHandleHadFocus;
if (haveFocus)
{
handles.RenderDistanceMeasurement(cylinderHandles.topPoint, cylinderHandles.bottomPoint, Mathf.Abs(height));
}
}
if (prevModified != handles.modified)
{
cylinderHandles.topY = Vector3.Dot(Vector3.up, cylinderHandles.topPoint);
cylinderHandles.bottomY = Vector3.Dot(Vector3.up, cylinderHandles.bottomPoint);
height = cylinderHandles.topY - cylinderHandles.bottomY;
bottomOffset = cylinderHandles.bottomY;
}
// Resize the top/bottom circle by grabbing and dragging it
prevModified = handles.modified;
{
// Make the bottom circle draggable
DraggableRadius(handles, ref bottomDiameterX, ref bottomDiameterZ, cylinderHandles.bottomPoint, -cylinderHandles.normal, cylinderHandles.bottomXVector, cylinderHandles.bottomZVector, cylinderHandles.bottomRadiusHandles, this.isEllipsoid);
// If we're a Cylinder, the top circle actually changes the bottom circle too
if (type == CylinderShapeType.Cylinder)
{
DraggableRadius(handles, ref bottomDiameterX, ref bottomDiameterZ, cylinderHandles.topPoint, cylinderHandles.normal, cylinderHandles.topXVector, cylinderHandles.topZVector, cylinderHandles.topRadiusHandles, this.isEllipsoid);
}
else
// If we're a Conical Frustum, the top circle can be resized independently from the bottom circle
if (type == CylinderShapeType.ConicalFrustum)
{
DraggableRadius(handles, ref topDiameterX, ref topDiameterZ, cylinderHandles.topPoint, cylinderHandles.normal, cylinderHandles.topXVector, cylinderHandles.topZVector, cylinderHandles.topRadiusHandles, this.isEllipsoid);
}
// else; If we're a Cone, we ignore the top circle
}
if (prevModified != handles.modified)
{
// Ensure that when our shape is circular and we modify it, that when we convert back to an ellipsoid, it'll still be circular
if (!this.isEllipsoid)
{
topDiameterZ = topDiameterX;
bottomDiameterZ = bottomDiameterX;
}
}
}
//
// TODO: code below needs to be cleaned up & simplified
//
static void DraggableRadius(IChiselHandles handles, ref float diameterX, ref float diameterZ, Vector3 center, Vector3 up, Vector3 xVector, Vector3 zVector, IChiselHandle[] radiusHandles, bool isEllipsoid)
{
if (isEllipsoid)
{
Debug.Assert(radiusHandles.Length == 4);
diameterX = -diameterX; handles.DoSlider1DHandle(ref diameterX, center, xVector, radiusHandles[1]); // right
if (handles.lastHandleHadFocus)
{
var radiusX = diameterX * 0.5f;
var radiusZ = diameterZ * 0.5f;
var vecX = (xVector.normalized * radiusX);
var vecZ = (zVector.normalized * radiusZ);
handles.RenderDistanceMeasurement(center, center + vecX, radiusX);
handles.RenderDistanceMeasurement(center, center + vecZ, radiusZ);
}
diameterX = -diameterX; handles.DoSlider1DHandle(ref diameterX, center, xVector, radiusHandles[0]); // left
if (handles.lastHandleHadFocus)
{
var radiusX = diameterX * 0.5f;
var radiusZ = diameterZ * 0.5f;
var vecX = (xVector.normalized * radiusX);
var vecZ = (zVector.normalized * radiusZ);
handles.RenderDistanceMeasurement(center, center + vecX, radiusX);
handles.RenderDistanceMeasurement(center, center + vecZ, radiusZ);
}
diameterZ = -diameterZ; handles.DoSlider1DHandle(ref diameterZ, center, zVector, radiusHandles[3]); // back
if (handles.lastHandleHadFocus)
{
var radiusX = diameterX * 0.5f;
var radiusZ = diameterZ * 0.5f;
var vecX = (xVector.normalized * radiusX);
var vecZ = (zVector.normalized * radiusZ);
handles.RenderDistanceMeasurement(center, center + vecX, radiusX);
handles.RenderDistanceMeasurement(center, center + vecZ, radiusZ);
}
diameterZ = -diameterZ; handles.DoSlider1DHandle(ref diameterZ, center, zVector, radiusHandles[2]); // forward
if (handles.lastHandleHadFocus)
{
var radiusX = diameterX * 0.5f;
var radiusZ = diameterZ * 0.5f;
var vecX = (xVector.normalized * radiusX);
var vecZ = (zVector.normalized * radiusZ);
handles.RenderDistanceMeasurement(center, center + vecX, radiusX);
handles.RenderDistanceMeasurement(center, center + vecZ, radiusZ);
}
diameterX = Mathf.Abs(diameterX);
diameterZ = Mathf.Abs(diameterZ);
}
else
{
Debug.Assert(radiusHandles.Length == 1);
handles.DoDistanceHandle(ref diameterX, center, up, radiusHandles[0]); // left
diameterX = Mathf.Abs(diameterX);
var radiusX = diameterX * 0.5f;
if (handles.lastHandleHadFocus)
{
if (handles.TryGetClosestPoint(radiusHandles, out var closestPoint, interpolate: false))
{
var vec = (closestPoint - center);
handles.RenderDistanceMeasurement(center, center + vec, radiusX);
}
}
}
}