private Vector3 MoveHandle(HashSet <int> vertices, Vector3 position, Vector3 axis, ref bool moved, float s)
{
float handleSize = HandleUtility.GetHandleSize(position) * size;
CustomHandles.HandleResult result = CustomHandles.HandleResult.None;
Vector3 dragPos = CustomHandles.DragHandle(position, axis,
handleSize, Handles.ConeHandleCap, out result, ctrl, s);
if (result == CustomHandles.HandleResult.Drag)
{
brush.undone = true;
Undo.RecordObject(brush, "Brush Edit");
Vector3 offset = dragPos - position;
foreach (var vert in vertices)
{
brush.mesh.vertices[vert].position += offset;
}
brush.undone = false;
brush.dirty = true;
brush.Update();
}
moved |= result != CustomHandles.HandleResult.None;
return(dragPos);
}
private Vector3 ScaleHandle(HashSet <int> vertices, Vector3 position, Vector3 axis, ref bool moved, ref float scaleMvt, float s)
{
float handleSize = HandleUtility.GetHandleSize(position) * size;
CustomHandles.HandleResult result = CustomHandles.HandleResult.None;
Vector3 dragPos = CustomHandles.DragHandle(position, axis,
handleSize, Handles.SphereHandleCap, out result, ctrl, s);
if (result == CustomHandles.HandleResult.Drag)
{
brush.undone = true;
Undo.RecordObject(brush, "Brush Edit");
Vector3 offset = dragPos - position;
float amt = Vector3.Dot(offset, axis);
scaleMvt += amt;
Vector3 c = brush.mesh.GetVerticesCenter(vertices);
foreach (var vert in vertices)
{
Vector3 v = brush.mesh.vertices[vert].position;
v -= c;
Vector3 onAxis = Vector3.Project(v, axis);
Vector3 offAxis = v - onAxis;
onAxis *= 1 + amt;
v = c + onAxis + offAxis;
brush.mesh.vertices[vert].position = v;
}
brush.undone = false;
brush.dirty = true;
brush.Update();
}
else if (result == CustomHandles.HandleResult.Release)
{
scaleMvt = 0;
}
moved |= result != CustomHandles.HandleResult.None;
return(dragPos);
}
private void SizeHandle(Vector3 axis, Vector3 axisN, Color color)
{
Transform transform = brush.transform;
CustomHandles.HandleResult result;
Vector3 worldAxis = transform.TransformDirection(axisN);
Vector3 center = transform.rotation * (brush.size / 2);
Vector3 handlePos = transform.position + center + Vector3.Dot(axis, brush.size / 2) * worldAxis;
float handleSize = HandleUtility.GetHandleSize(handlePos) * size;
handlePos += worldAxis * 1;
Handles.color = color;
Vector3 dragPos = CustomHandles.DragHandle(handlePos, worldAxis,
handleSize, Handles.ConeHandleCap, out result, ctrl);
float drag = Vector3.Dot(dragPos - handlePos, worldAxis);
float diff = -Vector3.Dot(axis, axisN);
diff = (1.0f + diff) / 2.0f;
if (result == CustomHandles.HandleResult.Drag)
{
brush.undone = true;
Undo.RecordObject(brush, "Brush Edit");
Undo.RecordObject(brush.transform, "Brush Edit");
brush.transform.position += worldAxis * drag * diff;
brush.size += axis * drag;
brush.undone = false;
if (drag != 0)
{
brush.Update();
}
}
}