void RemovePiece()
{
int controlID = GUIUtility.GetControlID(FocusType.Keyboard);
if (GUIUtility.hotControl == 0)
{
HandleUtility.AddDefaultControl(controlID);
}
if (m_CurrentInstance != null)
{
m_CurrentInstance.gameObject.SetActive(false);
}
var mousePos = Event.current.mousePosition;
PuzzlePiece closestPiece = null;
Bounds closestBound = new Bounds();
float closestSqrDist = float.MaxValue;
for (int i = 0; i < m_PuzzleLayout.pieces.Length; ++i)
{
PuzzlePiece r = m_PuzzleLayout.pieces[i];
if (r == null)
{
continue;
}
//This bit is inneficient, but should be enough for our purpose here in the kit. In very big scene
//it could slow down the editing process. Bound should probably be stored in local space or better should
//find a way to use the built-in picking but that require more complexity than necessary for those small kit
Bounds b = new Bounds();
Renderer[] renderers = r.GetComponentsInChildren <Renderer>();
if (renderers.Length > 0)
{
for (int k = 0; k < renderers.Length; ++k)
{
if (k == 0)
{
b = renderers[k].bounds;
}
else
{
b.Encapsulate(renderers[k].bounds);
}
}
}
else
{
//if the piece got no collider, it may be an "empty" piece used to introduce gap, so instead look for
//a collider to find it's size.
Collider[] colliders = r.GetComponentsInChildren <Collider>();
for (int k = 0; k < colliders.Length; ++k)
{
if (k == 0)
{
b = colliders[k].bounds;
}
else
{
b.Encapsulate(colliders[k].bounds);
}
}
}
var guiPts = HandleUtility.WorldToGUIPoint(b.center);
float dist = (guiPts - mousePos).sqrMagnitude;
if (dist < closestSqrDist)
{
closestSqrDist = dist;
closestPiece = r;
closestBound = b;
}
}
if (closestPiece != null)
{
if (Event.current.type == EventType.Repaint)
{
MeshFilter filter = closestPiece.GetComponentInChildren <MeshFilter>();
if (filter != null)
{
m_HighlightMaterial.SetPass(0);
Graphics.DrawMeshNow(filter.sharedMesh, closestPiece.transform.localToWorldMatrix);
}
Handles.DrawWireCube(closestBound.center, closestBound.size);
}
else if (Event.current.type == EventType.MouseUp && Event.current.button == 0 && GUIUtility.hotControl == 0)
{
closestPiece.Removed();
Undo.DestroyObjectImmediate(closestPiece.gameObject);
}
else
{
SceneView.currentDrawingSceneView.Repaint();
}
}
}