public static Vector3 Radius2DHandle(Vector3 center, Vector3 up, Vector3 radius, float minRadius = 0, float maxRadius = float.PositiveInfinity, bool renderDisc = true)
{
minRadius = Mathf.Abs(minRadius);
maxRadius = Mathf.Abs(maxRadius); if (maxRadius < minRadius)
{
maxRadius = minRadius;
}
var isStatic = (!Tools.hidden && EditorApplication.isPlaying && GameObjectUtility.ContainsStatic(Selection.gameObjects));
var prevDisabled = SceneHandles.disabled;
var prevColor = SceneHandles.color;
var prevChanged = GUI.changed;
var hasChanged = false;
var plane = new Plane(up, Vector3.zero);
var delta1 = GeometryUtility.ProjectPointPlane(radius - center, plane);
var delta2 = Quaternion.AngleAxis(90, up) * delta1;
var position0 = center + delta1;
var position1 = center - delta1;
var position2 = center + delta2;
var position3 = center - delta2;
float size;
Vector3 forward;
Vector3 right;
GeometryUtility.CalculateTangents(up, out right, out forward);
bool noRotation = Event.current.shift;
var isDisabled = isStatic || prevDisabled;
SceneHandles.color = SceneHandles.StateColor(prevColor, isDisabled, false);
Vector3 moveDelta = Vector3.zero;
GUI.changed = false;
size = UnityEditor.HandleUtility.GetHandleSize(position0);
position0 = Slider2DHandle(position0, Vector3.zero, up, forward, right, size * 0.05f, OutlinedDotHandleCap);
if (GUI.changed)
{
moveDelta = position0 - center; hasChanged = true;
}
GUI.changed = false;
size = UnityEditor.HandleUtility.GetHandleSize(position1);
position1 = Slider2DHandle(position1, Vector3.zero, up, forward, right, size * 0.05f, OutlinedDotHandleCap);
if (GUI.changed)
{
moveDelta = -(position1 - center); hasChanged = true;
}
GUI.changed = false;
size = UnityEditor.HandleUtility.GetHandleSize(position2);
position2 = Slider2DHandle(position2, Vector3.zero, up, forward, right, size * 0.05f, OutlinedDotHandleCap);
if (GUI.changed)
{
moveDelta = (Quaternion.AngleAxis(-90, up) * (position2 - center)); hasChanged = true;
}
GUI.changed = false;
size = UnityEditor.HandleUtility.GetHandleSize(position3);
position3 = Slider2DHandle(position3, Vector3.zero, up, forward, right, size * 0.05f, OutlinedDotHandleCap);
if (GUI.changed)
{
moveDelta = -(Quaternion.AngleAxis(-90, up) * (position3 - center)); hasChanged = true;
}
if (hasChanged)
{
Vector3 prevRadius = radius;
var newRadius = center + moveDelta;
var newDelta = GeometryUtility.ProjectPointPlane((newRadius - center), plane);
var length = newDelta.magnitude;
if (length < minRadius || length > maxRadius)
{
var direction = (length > Vector3.kEpsilon) ? newDelta.normalized : ((delta1.magnitude > Vector3.kEpsilon) ? delta1.normalized : Vector3.up);
length = Mathf.Max(minRadius, Mathf.Min(length, maxRadius));
radius = center + (length * direction);
}
else
{
radius = newRadius;
}
if (noRotation)
{
var magnitude = newRadius.magnitude;
radius = prevRadius.normalized * magnitude;
}
}
GUI.changed |= prevChanged | hasChanged;
isDisabled = isStatic || prevDisabled || (Snapping.AxisLocking[0] && Snapping.AxisLocking[1]);
SceneHandles.color = SceneHandles.StateColor(prevColor, isDisabled, false);
float radiusMagnitude = delta1.magnitude;
if (radiusMagnitude > 0 && renderDisc)
{
SceneHandles.DrawWireDisc(center, up, radiusMagnitude);
}
SceneHandles.disabled = prevDisabled;
SceneHandles.color = prevColor;
return(radius);
}
public static bool Radius2DHandle(Vector3 center, Vector3 up, ref Vector3 radius1, ref Vector3 radius2, float minRadius1 = 0, float minRadius2 = 0, float maxRadius1 = float.PositiveInfinity, float maxRadius2 = float.PositiveInfinity, bool renderDisc = true)
{
var positionId0 = GUIUtility.GetControlID(s_Radius2DHash, FocusType.Keyboard);
var positionId1 = GUIUtility.GetControlID(s_Radius2DHash, FocusType.Keyboard);
var positionId2 = GUIUtility.GetControlID(s_Radius2DHash, FocusType.Keyboard);
var positionId3 = GUIUtility.GetControlID(s_Radius2DHash, FocusType.Keyboard);
minRadius1 = Mathf.Abs(minRadius1);
minRadius2 = Mathf.Abs(minRadius2);
maxRadius1 = Mathf.Abs(maxRadius1); if (maxRadius1 < minRadius1)
{
maxRadius1 = minRadius1;
}
maxRadius2 = Mathf.Abs(maxRadius2); if (maxRadius2 < minRadius2)
{
maxRadius2 = minRadius2;
}
var isStatic = (!Tools.hidden && EditorApplication.isPlaying && GameObjectUtility.ContainsStatic(Selection.gameObjects));
var prevColor = SceneHandles.color;
var prevMatrix = SceneHandles.matrix;
var prevDisabled = SceneHandles.disabled;
var prevChanged = GUI.changed;
float size;
Vector3 forward;
Vector3 right;
GeometryUtility.CalculateTangents(up, out right, out forward);
var plane = new Plane(up, Vector3.zero);
var delta1 = GeometryUtility.ProjectPointPlane(radius1 - center, plane);
var delta2 = GeometryUtility.ProjectPointPlane(radius2 - center, plane);
var delta1Magnitude = delta1.magnitude;
var delta2Magnitude = delta2.magnitude;
var delta1Normalized = (delta1Magnitude < Vector3.kEpsilon) ? Vector3.zero : (delta1 / delta1Magnitude);
var delta2Normalized = (delta2Magnitude < Vector3.kEpsilon) ? Vector3.zero : (delta2 / delta2Magnitude);
// useful to have when modifying the 'other' one
var rotatedDelta1 = Quaternion.AngleAxis(-90, up) * delta1Normalized;
var rotatedDelta2 = Quaternion.AngleAxis(90, up) * delta2Normalized;
var position0 = center + delta1;
var position1 = center - delta1;
var position2 = center + delta2;
var position3 = center - delta2;
var isDisabled = isStatic || prevDisabled;
SceneHandles.color = SceneHandles.StateColor(prevColor, isDisabled, false);
bool noRotation = Event.current.shift;
GUI.changed = false;
size = UnityEditor.HandleUtility.GetHandleSize(position0);
position0 = Slider2DHandle(positionId0, position0, Vector3.zero, up, forward, right, size * 0.05f, OutlinedDotHandleCap);
if (GUI.changed)
{
var moveDelta = (position0 - center);
Vector3 newRadius;
if (noRotation)
{
newRadius = GeometryUtility.ProjectPointRay(center + moveDelta, center, rotatedDelta2);
}
else
{
newRadius = center + moveDelta;
}
var newDelta = GeometryUtility.ProjectPointPlane(newRadius - center, plane);
delta1Magnitude = newDelta.magnitude;
if (!noRotation && delta1Magnitude > Vector3.kEpsilon)
{
radius2 = center + ((Quaternion.AngleAxis(-90, up) * (newDelta / delta1Magnitude)) * delta2Magnitude);
}
// set this after setting radius2 since both may lead to same variable
delta1 = newDelta;
radius1 = newRadius;
prevChanged = true;
}
GUI.changed = false;
size = UnityEditor.HandleUtility.GetHandleSize(position1);
position1 = Slider2DHandle(positionId1, position1, Vector3.zero, up, forward, right, size * 0.05f, OutlinedDotHandleCap);
if (GUI.changed)
{
var moveDelta = (position1 - center);
Vector3 newRadius;
if (noRotation)
{
newRadius = GeometryUtility.ProjectPointRay(center - moveDelta, center, rotatedDelta2);
}
else
{
newRadius = center - moveDelta;
}
var newDelta = GeometryUtility.ProjectPointPlane(newRadius - center, plane);
delta1Magnitude = newDelta.magnitude;
if (!noRotation && delta1Magnitude > Vector3.kEpsilon)
{
radius2 = center + ((Quaternion.AngleAxis(-90, up) * (newDelta / delta1Magnitude)) * delta2Magnitude);
}
// set this after setting radius2 since both may lead to same variable
delta1 = newDelta;
radius1 = newRadius;
prevChanged = true;
}
GUI.changed = false;
size = UnityEditor.HandleUtility.GetHandleSize(position2);
position2 = Slider2DHandle(positionId2, position2, Vector3.zero, up, forward, right, size * 0.05f, OutlinedDotHandleCap);
if (GUI.changed)
{
var moveDelta = (position2 - center);
Vector3 newRadius;
if (noRotation)
{
newRadius = GeometryUtility.ProjectPointRay(center + moveDelta, center, rotatedDelta1);
}
else
{
newRadius = center + moveDelta;
}
var newDelta = GeometryUtility.ProjectPointPlane(newRadius - center, plane);
delta2Magnitude = newDelta.magnitude;
if (!noRotation && delta2Magnitude > Vector3.kEpsilon)
{
radius1 = center + ((Quaternion.AngleAxis(90, up) * (newDelta / delta2Magnitude)) * delta1Magnitude);
}
// set this after setting radius1 since both may lead to same variable
delta2 = newDelta;
radius2 = newRadius;
prevChanged = true;
}
GUI.changed = false;
size = UnityEditor.HandleUtility.GetHandleSize(position3);
position3 = Slider2DHandle(positionId3, position3, Vector3.zero, up, forward, right, size * 0.05f, OutlinedDotHandleCap);
if (GUI.changed)
{
var moveDelta = (position3 - center);
Vector3 newRadius;
if (noRotation)
{
newRadius = GeometryUtility.ProjectPointRay(center - moveDelta, center, rotatedDelta1);
}
else
{
newRadius = center - moveDelta;
}
var newDelta = GeometryUtility.ProjectPointPlane(newRadius - center, plane);
delta2Magnitude = newDelta.magnitude;
if (!noRotation && delta2Magnitude > Vector3.kEpsilon)
{
radius1 = center + ((Quaternion.AngleAxis(90, up) * (newDelta / delta2Magnitude)) * delta1Magnitude);
}
// set this after setting radius1 since both may lead to same variable
delta2 = newDelta;
radius2 = newRadius;
prevChanged = true;
}
GUI.changed |= prevChanged;
if (delta1Magnitude < minRadius1 || delta1Magnitude > maxRadius1)
{
if (delta2Magnitude < minRadius2 || delta2Magnitude > maxRadius2)
{
delta1Magnitude = Mathf.Max(minRadius1, Mathf.Min(delta1Magnitude, maxRadius1));
delta2Magnitude = Mathf.Max(minRadius2, Mathf.Min(delta2Magnitude, maxRadius2));
delta1Normalized = right;
delta2Normalized = up;
delta1 = GeometryUtility.ProjectPointPlane(delta1Normalized * delta1Magnitude, plane);
delta2 = GeometryUtility.ProjectPointPlane(delta2Normalized * delta2Magnitude, plane);
rotatedDelta2 = delta2Normalized;
rotatedDelta1 = delta1Normalized;
radius1 = center + delta1;
radius2 = center + delta2;
GUI.changed = true;
}
else
{
delta1Magnitude = Mathf.Max(minRadius1, Mathf.Min(delta1Magnitude, maxRadius1));
delta1Normalized = rotatedDelta2;
delta1 = GeometryUtility.ProjectPointPlane(delta1Normalized * delta1Magnitude, plane);
radius1 = center + delta1;
GUI.changed = true;
}
}
else
if (delta2Magnitude < minRadius2 || delta2Magnitude > maxRadius2)
{
delta2Magnitude = Mathf.Max(minRadius2, Mathf.Min(delta2Magnitude, maxRadius2));
delta2Normalized = rotatedDelta1;
delta2 = delta2Normalized * delta2Magnitude;
radius2 = center + delta2;
GUI.changed = true;
}
if (Event.current.type == EventType.Repaint)
{
isDisabled = isStatic || prevDisabled || (Snapping.AxisLocking[0] && Snapping.AxisLocking[1]);
SceneHandles.color = SceneHandles.StateColor(prevColor, isDisabled, false);
if (delta1Magnitude > Vector3.kEpsilon && delta2Magnitude > Vector3.kEpsilon)
{
var ellipsis = Matrix4x4.TRS(center, Quaternion.identity, Vector3.one);
ellipsis.m00 = delta1.x;
ellipsis.m10 = delta1.y;
ellipsis.m20 = delta1.z;
ellipsis.m01 = delta2.x;
ellipsis.m11 = delta2.y;
ellipsis.m21 = delta2.z;
ellipsis.m02 = up.x;
ellipsis.m12 = up.y;
ellipsis.m22 = up.z;
ellipsis *= Matrix4x4.TRS(-center, Quaternion.identity, Vector3.one);
var newMatrix = prevMatrix * ellipsis;
SceneHandles.matrix = newMatrix;
if (renderDisc)
{
SceneHandles.DrawWireDisc(center, Vector3.forward, 1.0f);
}
}
else
if (delta1Magnitude > Vector3.kEpsilon)
{
SceneHandles.DrawLine(position0, position1);
}
else
if (delta2Magnitude > Vector3.kEpsilon)
{
SceneHandles.DrawLine(position2, position3);
}
}
SceneHandles.disabled = prevDisabled;
SceneHandles.matrix = prevMatrix;
SceneHandles.color = prevColor;
var focus = SceneHandleUtility.focusControl;
return((focus == positionId0) ||
(focus == positionId1) ||
(focus == positionId2) ||
(focus == positionId3));
}
