public static BoxExtrusionState Do(Rect dragArea, out Bounds bounds, out float height, out ChiselModel modelBeneathCursor, out Matrix4x4 transformation, BoxExtrusionFlags flags, Axis axis, float?snappingSteps = null)
{
try
{
if (SceneHandles.InCameraOrbitMode)
{
return(BoxExtrusionState.None);
}
if (s_Points.Count <= 2)
{
PointDrawing.PointDrawHandle(dragArea, ref s_Points, out s_Transformation, out s_ModelBeneathCursor, UnitySceneExtensions.SceneHandles.OutlinedDotHandleCap);
if (s_Points.Count <= 1)
{
return(BoxExtrusionState.HoverMode);
}
if (s_Points.Count > 2)
{
s_Points[2] = s_Points[0];
return(BoxExtrusionState.Create);
}
return(BoxExtrusionState.SquareMode);
}
else
{
var tempPoint = s_Points[2];
var oldMatrix = UnityEditor.Handles.matrix;
UnityEditor.Handles.matrix = UnityEditor.Handles.matrix * s_Transformation;
var extrusionState = ExtrusionHandle.DoHandle(dragArea, ref tempPoint, axis, snappingSteps: snappingSteps);
UnityEditor.Handles.matrix = oldMatrix;
s_Points[2] = tempPoint;
switch (extrusionState)
{
case ExtrusionState.Cancel: { return(BoxExtrusionState.Cancel); }
case ExtrusionState.Commit: { return(BoxExtrusionState.Commit); }
case ExtrusionState.Modified: { return(BoxExtrusionState.Modified); }
}
return(BoxExtrusionState.BoxMode);
}
}
finally
{
modelBeneathCursor = s_ModelBeneathCursor;
bounds = GetBounds(flags, axis);
height = GetHeight(axis);
var center = bounds.center;
if ((flags & BoxExtrusionFlags.GenerateFromCenterY) != BoxExtrusionFlags.GenerateFromCenterY)
{
center[(int)axis] -= height * 0.5f;
}
transformation = s_Transformation * Matrix4x4.TRS(center, Quaternion.identity, Vector3.one);
#if true
//if (height > 0)
{
if ((flags & BoxExtrusionFlags.AlwaysFaceUp) == BoxExtrusionFlags.AlwaysFaceUp)
{
var currentUp = transformation.MultiplyVector(Vector3.up);
var currentForward = transformation.MultiplyVector(Vector3.forward);
var currentRight = transformation.MultiplyVector(Vector3.right);
var desiredUp = Grid.ActiveGrid.Up;
var dotX = Vector3.Dot(currentRight, desiredUp);
var dotY = Vector3.Dot(currentUp, desiredUp);
var dotZ = Vector3.Dot(currentForward, desiredUp);
var absDotX = Mathf.Abs(dotX);
var absDotY = Mathf.Abs(dotY);
var absDotZ = Mathf.Abs(dotZ);
if (absDotX > absDotZ)
{
if (absDotX > absDotY)
{
var size = bounds.size;
var t = size.x; size.x = size.y; size.y = t;
bounds.size = size;
axis = Axis.X;
var position = transformation.GetColumn(3);
transformation.SetColumn(3, new Vector4(0, 0, 0, 1));
transformation *= Matrix4x4.TRS(position, Quaternion.identity, Vector3.one);
transformation *= new Matrix4x4(new Vector4(0, 1, 0, 0),
new Vector4(1, 0, 0, 0),
new Vector4(0, 0, 1, 0),
new Vector4(0, 0, 0, 1));
transformation.SetColumn(3, position);
}
}
else
{
if (absDotZ > absDotY)
{
var size = bounds.size;
var t = size.z; size.z = size.y; size.y = t;
bounds.size = size;
axis = Axis.Z;
var position = transformation.GetColumn(3);
transformation.SetColumn(3, new Vector4(0, 0, 0, 1));
transformation *= Matrix4x4.TRS(position, Quaternion.identity, Vector3.one);
transformation *= new Matrix4x4(new Vector4(1, 0, 0, 0),
new Vector4(0, 0, 1, 0),
new Vector4(0, 1, 0, 0),
new Vector4(0, 0, 0, 1));
transformation.SetColumn(3, position);
}
}
}
if (!s_ModelBeneathCursor &&
(flags & BoxExtrusionFlags.AlwaysFaceCameraXZ) == BoxExtrusionFlags.AlwaysFaceCameraXZ)
{
// TODO: take grid orientation into account to decide what is "X" and what is "Z"
var currentForward = transformation.MultiplyVector(Vector3.forward);
var currentRight = transformation.MultiplyVector(Vector3.right);
var cameraOffset = Camera.current.transform.forward;
var cameraForward = (new Vector3(cameraOffset.x, 0, cameraOffset.z)).normalized;
var dotZ = Vector3.Dot(currentForward, cameraForward);
var dotX = Vector3.Dot(currentRight, cameraForward);
var angle = 0;
if (Mathf.Abs(dotX) < Mathf.Abs(dotZ))
{
if (dotZ > 0)
{
angle += 180;
}
}
else
{
if (dotX < 0)
{
angle += 90;
}
else
{
angle -= 90;
}
if (axis == Axis.X)
{
axis = Axis.Z;
}
var size = bounds.size;
var t = size.x; size.x = size.z; size.z = t;
bounds.size = size;
}
var position = transformation.GetColumn(3);
transformation.SetColumn(3, new Vector4(0, 0, 0, 1));
transformation *= Matrix4x4.TRS(position, Quaternion.identity, Vector3.one);
transformation *= Matrix4x4.TRS(Vector3.zero, Quaternion.Euler(0, angle, 0), Vector3.one);
transformation.SetColumn(3, position);
}
}
#endif
center = Vector3.zero;
if ((flags & BoxExtrusionFlags.GenerateFromCenterY) != BoxExtrusionFlags.GenerateFromCenterY)
{
center[(int)axis] = height * 0.5f;
}
bounds.center = center;
}
}
static Bounds GetBounds(BoxExtrusionFlags flags, Axis axis)
{
if (s_Points.Count == 0)
{
return(new Bounds());
}
var bounds = new Bounds(s_Points[0], Vector3.zero);
if (s_Points.Count == 1)
{
return(bounds);
}
if ((flags & BoxExtrusionFlags.IsSymmetricalXZ) == BoxExtrusionFlags.IsSymmetricalXZ)
{
var pt0 = s_Points[0];
var pt1 = s_Points[1];
var xDelta = pt1.x - pt0.x;
var zDelta = pt1.z - pt0.z;
var xAbsDelta = Mathf.Abs(xDelta);
var zAbsDelta = Mathf.Abs(zDelta);
if (xAbsDelta != zAbsDelta)
{
if (xAbsDelta > zAbsDelta)
{
zDelta = xAbsDelta * Mathf.Sign(zDelta);
pt1.z = pt0.z + zDelta;
}
else
{
xDelta = zAbsDelta * Mathf.Sign(xDelta);
pt1.x = pt0.x + xDelta;
}
s_Points[1] = pt1;
}
}
if ((flags & BoxExtrusionFlags.GenerateFromCenterXZ) == BoxExtrusionFlags.GenerateFromCenterXZ)
{
var radius = s_Points[1] - s_Points[0];
bounds.Encapsulate(s_Points[0] - radius);
bounds.Encapsulate(s_Points[0] + radius);
}
else
{
bounds.Encapsulate(s_Points[1]);
}
if (s_Points.Count == 2)
{
return(bounds);
}
var height = GetHeight(axis);
var size = bounds.size;
size[(int)axis] = height;
bounds.size = size;
if ((flags & BoxExtrusionFlags.GenerateFromCenterY) != BoxExtrusionFlags.GenerateFromCenterY)
{
var center = bounds.center;
center[(int)axis] += height * 0.5f;
bounds.center = center;
}
return(bounds);
}
public static BoxExtrusionState Do(Rect dragArea, out Bounds bounds, out float height, out ChiselModel modelBeneathCursor, out Matrix4x4 transformation, BoxExtrusionFlags flags, Axis axis, float?snappingSteps = null)
{
try
{
if (SceneHandles.InCameraOrbitMode)
{
return(BoxExtrusionState.None);
}
if (s_Points.Count <= 2)
{
PointDrawing.PointDrawHandle(dragArea, ref s_Points, out s_Transformation, out s_ModelBeneathCursor, UnitySceneExtensions.SceneHandles.OutlinedDotHandleCap);
if (s_Points.Count <= 1)
{
return(BoxExtrusionState.HoverMode);
}
if (s_Points.Count > 2)
{
s_Points[2] = s_Points[0];
return(BoxExtrusionState.Create);
}
return(BoxExtrusionState.SquareMode);
}
else
{
var tempPoint = s_Points[2];
var oldMatrix = UnityEditor.Handles.matrix;
UnityEditor.Handles.matrix = UnityEditor.Handles.matrix * s_Transformation;
var extrusionState = ExtrusionHandle.DoHandle(dragArea, ref tempPoint, axis, snappingSteps: snappingSteps);
UnityEditor.Handles.matrix = oldMatrix;
s_Points[2] = tempPoint;
switch (extrusionState)
{
case ExtrusionState.Cancel: { return(BoxExtrusionState.Cancel); }
case ExtrusionState.Commit: { return(BoxExtrusionState.Commit); }
case ExtrusionState.Modified: { return(BoxExtrusionState.Modified); }
}
return(BoxExtrusionState.BoxMode);
}
}
finally
{
modelBeneathCursor = s_ModelBeneathCursor;
bounds = GetBounds(flags, axis);
height = GetHeight(axis);
var center = bounds.center;
if ((flags & BoxExtrusionFlags.GenerateFromCenterY) != BoxExtrusionFlags.GenerateFromCenterY)
{
center[(int)axis] -= height * 0.5f;
}
transformation = s_Transformation * Matrix4x4.TRS(center, Quaternion.identity, Vector3.one);
center = Vector3.zero;
if ((flags & BoxExtrusionFlags.GenerateFromCenterY) != BoxExtrusionFlags.GenerateFromCenterY)
{
center[(int)axis] = height * 0.5f;
}
bounds.center = center;
}
}
