public override void OnSceneViewGUI(SceneView sceneView)
{
if (EdgeVisual.Visible && EdgeVisual.MouseOver)
{
return;
}
// 1. Find target game object.
if (m_collectedData == null)
{
if (GetChild <SelectGameObjectTool>() == null)
{
SelectGameObjectTool selectGameObjectTool = new SelectGameObjectTool();
selectGameObjectTool.OnSelect = go =>
{
m_collectedData = new CollectedData()
{
Target = go
};
};
AddChild(selectGameObjectTool);
}
}
// 2. Select edge on target game object.
else if (!m_collectedData.SelectedEdge.Valid)
{
Raycast.Hit hit = Raycast.Test(m_collectedData.Target, HandleUtility.GUIPointToWorldRay(Event.current.mousePosition));
if (hit.ClosestEdge.Valid)
{
m_collectedData.CurrentEdge = hit.ClosestEdge;
}
}
// 3. Find point on edge - hold ctrl for "no-snap" mode.
else if (!m_collectedData.PointOnEdgeGiven)
{
Vector3 pointOnEdge = FindClosestPointOnEdge(m_collectedData.SelectedEdge.Edge);
if (Event.current.control)
{
m_collectedData.PointOnEdge = pointOnEdge;
}
else
{
float snapValue = 0.5f * HandleUtility.GetHandleSize(pointOnEdge);
float closestDistance = float.PositiveInfinity;
Vector3 closestPoint = pointOnEdge;
Vector3[] predefinedPoints = FindPredefinedEdgePoints(m_collectedData.SelectedEdge.Edge).ToArray();
// Given set of predefined points along the edge, finds the
// closest to the mouse ray (i.e., the actual point on the edge).
foreach (var point in predefinedPoints)
{
float distanceToPoint = Vector3.Distance(pointOnEdge, point);
if (distanceToPoint < snapValue && distanceToPoint < closestDistance)
{
closestPoint = point;
closestDistance = distanceToPoint;
}
}
m_collectedData.PointOnEdge = closestPoint;
}
}
// 4. Find direction.
else if (!m_collectedData.DirectionGiven)
{
if (GetChild <DirectionTool>() == null)
{
DirectionTool directionTool = new DirectionTool(m_collectedData.PointOnEdge,
m_collectedData.SelectedEdge.Edge.Direction,
m_collectedData.SelectedEdge.Edge.Normal);
directionTool.OnSelect += (position, rotation) =>
{
m_collectedData.DirectionRotation = rotation;
m_collectedData.DirectionGiven = true;
};
AddChild(directionTool);
}
}
// 5. Done, fire callback with result and remove us.
else
{
MeshUtils.Edge orgEdge = m_collectedData.SelectedEdge.Edge;
Result resultingData = new Result()
{
Target = m_collectedData.Target,
Edge = new MeshUtils.Edge(m_collectedData.PointOnEdge + 0.5f * orgEdge.Length * (m_collectedData.DirectionRotation * Vector3.back),
m_collectedData.PointOnEdge + 0.5f * orgEdge.Length * (m_collectedData.DirectionRotation * Vector3.forward),
m_collectedData.DirectionRotation * Vector3.up, MeshUtils.Edge.EdgeType.Triangle),
Position = m_collectedData.PointOnEdge,
Rotation = m_collectedData.DirectionRotation
};
OnEdgeFound(resultingData);
PerformRemoveFromParent();
return;
}
EdgeVisual.Visible = m_collectedData != null && m_collectedData.CurrentEdge.Valid;
if (EdgeVisual.Visible)
{
const float edgeRadius = 0.035f;
const float defaultAlpha = 0.25f;
const float mouseOverAlpha = 0.65f;
EdgeVisual.SetTransform(m_collectedData.CurrentEdge.Edge.Start, m_collectedData.CurrentEdge.Edge.End, edgeRadius);
if (m_collectedData.CurrentEdge.Edge.Type == MeshUtils.Edge.EdgeType.Triangle)
{
EdgeVisual.Color = new Color(Color.yellow.r, Color.yellow.g, Color.yellow.b, defaultAlpha);
EdgeVisual.MouseOverColor = new Color(Color.yellow.r, Color.yellow.g, Color.yellow.b, mouseOverAlpha);
}
else if (m_collectedData.CurrentEdge.Edge.Type == MeshUtils.Edge.EdgeType.Principal)
{
EdgeVisual.Color = new Color(Color.red.r, Color.red.g, Color.red.b, defaultAlpha);
EdgeVisual.MouseOverColor = new Color(Color.red.r, Color.red.g, Color.red.b, mouseOverAlpha);
}
}
NodeVisual.Visible = EdgeVisual.Visible && m_collectedData.SelectedEdge.Valid;
if (NodeVisual.Visible)
{
const float nodeRadius = 0.040f;
NodeVisual.SetTransform(m_collectedData.PointOnEdge, Quaternion.identity, nodeRadius);
// The user doesn't have to hit the node sphere.
if (Manager.HijackLeftMouseClick())
{
OnPointClick(null, NodeVisual);
}
}
}
public override void OnSceneViewGUI(SceneView sceneView)
{
if (m_collectedData == null)
{
if (GetChild <SelectGameObjectTool>() == null)
{
SelectGameObjectTool selectGameObjectTool = new SelectGameObjectTool();
selectGameObjectTool.OnSelect = go =>
{
m_collectedData = new CollectedData()
{
Target = go
};
};
AddChild(selectGameObjectTool);
}
}
else if (!m_collectedData.TriangleGiven)
{
// TODO: Handle world point?
if (m_collectedData.Target == null)
{
PerformRemoveFromParent();
return;
}
m_collectedData.Triangle = Raycast.Test(m_collectedData.Target, HandleUtility.GUIPointToWorldRay(Event.current.mousePosition)).Triangle;
// Done (next state) when the user left click and we've a valid triangle.
m_collectedData.TriangleGiven = m_collectedData.Triangle.Valid && Manager.HijackLeftMouseClick();
}
else if (!m_collectedData.RotationGiven)
{
if (GetChild <DirectionTool>() == null)
{
DirectionTool directionTool = new DirectionTool(m_collectedData.Triangle.Point,
m_collectedData.Triangle.Normal,
m_collectedData.Triangle.ClosestEdge.Direction);
directionTool.OnSelect += (position, rotation) =>
{
m_collectedData.Rotation = rotation;
m_collectedData.RotationGiven = true;
};
AddChild(directionTool);
}
}
else
{
Result resultingData = new Result()
{
Target = m_collectedData.Target,
Triangle = m_collectedData.Triangle,
Rotation = m_collectedData.Rotation
};
OnPointFound(resultingData);
PerformRemoveFromParent();
}
PointVisual.Visible = m_collectedData != null && m_collectedData.Triangle.Valid && !m_collectedData.TriangleGiven;
if (PointVisual.Visible)
{
PointVisual.SetTransform(m_collectedData.Triangle.Point, Quaternion.identity, 0.05f);
}
}