private PickMode PickTriangle(PickMode pickMode)
{
if (Camera.current == null)
{
return(PickMode.Undecided);
}
Ray pickRay = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
int hitTriIndex = -1;
if (RaycastUtil.Raycast(targetMeshCollider, pickRay, out hitTriIndex, 10000.0f))
{
if (currentHullPainter.paintingData.HasActiveHull())
{
Hull hull = currentHullPainter.paintingData.GetActiveHull();
if (pickMode == PickMode.Additive)
{
if (!hull.selectedFaces.Contains(hitTriIndex))
{
hull.selectedFaces.Add(hitTriIndex);
}
PickArea(targetMeshCollider, hull, Event.current.mousePosition, true);
return(PickMode.Additive);
}
else if (pickMode == PickMode.Subtractive)
{
hull.selectedFaces.Remove(hitTriIndex);
PickArea(targetMeshCollider, hull, Event.current.mousePosition, false);
return(PickMode.Subtractive);
}
else if (pickMode == PickMode.Undecided)
{
if (hull.selectedFaces.Contains(hitTriIndex))
{
hull.selectedFaces.Remove(hitTriIndex);
PickArea(targetMeshCollider, hull, Event.current.mousePosition, false);
return(PickMode.Subtractive);
}
else
{
hull.selectedFaces.Add(hitTriIndex);
PickArea(targetMeshCollider, hull, Event.current.mousePosition, true);
return(PickMode.Additive);
}
}
}
}
return(PickMode.Undecided);
}
private void PickArea(MeshCollider targetMeshCollider, Hull hull, Vector2 clickPos, bool asAdditive)
{
int range = GetBrushPixelSize();
int numRays = range + 1;
for (int i = 0; i < numRays; i++)
{
Vector2 jitteredPos;
if (i == 0)
{
jitteredPos = clickPos;
}
else
{
jitteredPos = new Vector2(clickPos.x + Random.Range(-range, range), clickPos.y + Random.Range(-range, range));
}
Ray pickRay = HandleUtility.GUIPointToWorldRay(jitteredPos);
int hitTriIndex = -1;
if (RaycastUtil.Raycast(targetMeshCollider, pickRay, out hitTriIndex, 10000.0f))
{
if (asAdditive)
{
if (!hull.selectedFaces.Contains(hitTriIndex))
{
hull.selectedFaces.Add(hitTriIndex);
}
}
else
{
hull.selectedFaces.Remove(hitTriIndex);
}
}
}
}
public bool DoMouseDown(PickMode initialMode)
{
if (currentToolSelection == ToolSelection.TrianglePainting)
{
if (targetMeshCollider != null)
{
if (currentHullPainter != null && currentHullPainter.paintingData != null)
{
Undo.RecordObject(currentHullPainter.paintingData, "Paint Hull");
pickMode = PickTriangle(initialMode);
if (pickMode != PickMode.Undecided)
{
// Debug.Log ("Start drag");
Sync();
EditorUtility.SetDirty(currentHullPainter.paintingData);
isSelectingFaces = true;
return(true);
}
else
{
// Debug.Log ("Abandon drag");
}
}
else
{
// This can happen when unity triggers scene callbacks in an odd order and the currentHullPainter isn't set yet
// Debug.LogError("SceneManipulator has no currentHullPainter!");
}
}
else
{
Debug.Log("Mouse down but no targetMeshCollider, ignoring");
}
}
else if (currentToolSelection == ToolSelection.Pipette)
{
// Raycast against the target mesh collider and see if the triangle we hit is in any current hull
bool anyFound = false;
Ray pickRay = HandleUtility.GUIPointToWorldRay(Event.current.mousePosition);
int hitTriIndex = -1;
if (targetMeshCollider != null && RaycastUtil.Raycast(targetMeshCollider, pickRay, out hitTriIndex, 10000.0f))
{
for (int i = 0; i < currentHullPainter.paintingData.hulls.Count; i++)
{
Hull hull = currentHullPainter.paintingData.hulls[i];
if (hull.selectedFaces.Contains(hitTriIndex))
{
// Now painting this hull!
currentHullPainter.paintingData.activeHull = i;
currentToolSelection = ToolSelection.TrianglePainting;
anyFound = true;
break;
}
}
}
if (!anyFound)
{
currentToolSelection = ToolSelection.TrianglePainting;
currentHullPainter.paintingData.activeHull = -1;
}
}
return(false);
}