protected void CenterExtrusionPoints(CSGPlane buildPlane)
{
if (!HaveHeight)
{
return;
}
var center = GetShapeBounds().Center;
brushPosition = buildPlane.Project(center);
var height0 = buildPlane.Distance(extrusionPoints[0].Position);
var height1 = buildPlane.Distance(extrusionPoints[1].Position);
extrusionPoints[0].Position = brushPosition + (buildPlane.normal * height0);
extrusionPoints[1].Position = brushPosition + (buildPlane.normal * height1);
}
public static bool IntersectsWithShapePolygon(ShapePolygon shapePolygon, CSGPlane polygonPlane, Ray ray)
{
var intersection = polygonPlane.Intersection(ray);
var vertices = shapePolygon.Vertices;
for (int v0 = vertices.Length - 1, v1 = 0; v1 < vertices.Length; v0 = v1, v1++)
{
var vertex0 = vertices[v0];
var vertex1 = vertices[v1];
var delta = (vertex1 - vertex0);
var length = delta.sqrMagnitude;
if (length <= MathConstants.EqualityEpsilonSqr)
{
continue;
}
var tangent = delta / Mathf.Sqrt(length);
var normal = Vector3.Cross(polygonPlane.normal, tangent);
var plane = new CSGPlane(normal, vertex0);
if (plane.Distance(intersection) < MathConstants.DistanceEpsilon)
{
return(false);
}
}
return(true);
}
public static float DistanceToLine(CSGPlane cameraPlane, Vector2 mousePoint, Vector3 point1, Vector3 point2)
{
var dist1 = cameraPlane.Distance(point1);
var dist2 = cameraPlane.Distance(point2);
if (dist1 < 0 && dist2 > 0)
{
point1 = cameraPlane.Intersection(point1, point2);
}
else
if (dist2 < 0 && dist1 > 0)
{
point2 = cameraPlane.Intersection(point1, point2);
}
return(DistanceToLine(mousePoint, point1, point2) * 0.5f);
}
public static float DistanceToLine(CSGPlane cameraPlane, Vector2 mousePoint, Vector3 point1, Vector3 point2)
{
var dist1 = cameraPlane.Distance(point1);
var dist2 = cameraPlane.Distance(point2);
if (dist1 < 0 && dist2 > 0)
{
point1 = cameraPlane.LineIntersection(point1, point2);
}
else
if (dist2 < 0 && dist1 > 0)
{
point2 = cameraPlane.LineIntersection(point1, point2);
}
float value = DistancePointLine(mousePoint, point1, point2) / 2.5f; // * 0.5f;
return(value);
}
protected void GrabHeightHandle(SceneView sceneView, int index, bool ignoreFirstMouseUp = false)
{
var camera = sceneView.camera;
if (camera == null)
{
return;
}
var assume2DView = CSGSettings.Assume2DView(camera);
firstClick = ignoreFirstMouseUp;
editMode = EditMode.ExtrudeShape;
GUIUtility.hotControl = extrusionPoints[index].ID;
GUIUtility.keyboardControl = extrusionPoints[index].ID;
EditorGUIUtility.editingTextField = false;
EditorGUIUtility.SetWantsMouseJumping(1);
var surfaceDirection = buildPlane.normal;
var closestAxisForward = GeometryUtility.SnapToClosestAxis(-camera.transform.forward);
var closestAxisArrow = GeometryUtility.SnapToClosestAxis(surfaceDirection);
Vector3 tangent, normal;
float dot = Mathf.Abs(Vector3.Dot(closestAxisForward, closestAxisArrow));
if (dot != 1)
{
Vector3 v1, v2;
if (closestAxisForward.x == 0 && closestAxisForward.y == 0)
{
v1 = new Vector3(1, 0, 0);
v2 = new Vector3(0, 1, 0);
}
else
if (closestAxisForward.x == 0 && closestAxisForward.z == 0)
{
v1 = new Vector3(1, 0, 0);
v2 = new Vector3(0, 0, 1);
}
else
//if (closestAxisForward.y == 0 && closestAxisForward.z == 0)
{
v1 = new Vector3(0, 1, 0);
v2 = new Vector3(0, 0, 1);
}
var backward = -camera.transform.forward;
float dot1 = Vector3.Dot(backward, v1);
float dot2 = Vector3.Dot(backward, v2);
if (dot1 < dot2)
{
tangent = v1;
}
else
{
tangent = v2;
}
}
else
{
tangent = GeometryUtility.SnapToClosestAxis(Vector3.Cross(surfaceDirection, -camera.transform.forward));
}
normal = Vector3.Cross(surfaceDirection, tangent);
if (assume2DView)
{
normal = -camera.transform.forward;
}
if (normal == MathConstants.zeroVector3)
{
normal = GeometryUtility.SnapToClosestAxis(-camera.transform.forward);
}
movePlane = new CSGPlane(normal, extrusionPoints[index].Position);
if (!assume2DView && Mathf.Abs(movePlane.Distance(camera.transform.position)) < 2.0f)
{
var new_tangent = Vector3.Cross(normal, closestAxisForward);
if (new_tangent != MathConstants.zeroVector3)
{
tangent = new_tangent;
normal = Vector3.Cross(surfaceDirection, tangent);
movePlane = new CSGPlane(normal, extrusionPoints[index].Position);
}
}
movePolygonDirection = haveForcedDirection ? forcedDirection : buildPlane.normal;
if (!isFinished)
{
RealtimeCSG.CSGGrid.SetForcedGrid(camera, movePlane);
}
var plane = new CSGPlane(buildPlane.normal, extrusionPoints[index].Position);
heightPosition = Event.current.mousePosition;
heightHandleOffset = (plane.Distance(GetHeightHandlePosition(sceneView, extrusionPoints[index].Position)) * movePolygonDirection);
if (float.IsInfinity(heightHandleOffset.x) || float.IsNaN(heightHandleOffset.x) ||
float.IsInfinity(heightHandleOffset.y) || float.IsNaN(heightHandleOffset.y) ||
float.IsInfinity(heightHandleOffset.z) || float.IsNaN(heightHandleOffset.z))
{
heightHandleOffset = Vector3.zero;
}
}
