private void HandleSelection(LatticeGridComponent lattice, Transform transform)
{
if (selectedInfo.HasSelection)
{
using (var cc = new EditorGUI.ChangeCheckScope())
{
var handlePos = CalcSelectionCenter(lattice);
handlePos = transform.TransformPoint(handlePos);
var newV = Handles.PositionHandle(handlePos, transform.rotation);
if (cc.changed)
{
Undo.RecordObject(lattice, "Lattice Vertex Change");
Vector3 delta = newV - handlePos;
delta = transform.worldToLocalMatrix * delta;
var indices = selectedInfo.SelectedPointsIndices;
foreach (int i in indices)
{
lattice.Grid.Vertices[i] += delta;
}
if (liveEvaluation)
{
if (lattice.HasSnapshot)
{
lattice.UpdateTargetSnapshotVertices();
}
}
}
}
}
}
private void DrawScreenGUI(LatticeGridComponent lattice)
{
Handles.BeginGUI();
int menuWidth = menuOpen ? 140 : 80;
GUILayout.BeginArea(new Rect(5, 5, menuWidth, 160));
GUILayout.BeginVertical();
if (GUILayout.Button(menuOpen ? "<<<" : "menu >>>", GUILayout.Height(20)))
{
menuOpen = !menuOpen;
}
if (menuOpen)
{
if (GUILayout.Button(drawOpaque ? "transparent": "opaque"))
{
drawOpaque = !drawOpaque;
needsRepaint = true;
}
if (GUILayout.Button(allowSelection ? "disallow selection" : "allow selection"))
{
allowSelection = !allowSelection;
selectedInfo.ClearSelection();
needsRepaint = true;
}
if (GUILayout.Button("reset grid"))
{
lattice.ResetVerticesPosition();
needsRepaint = true;
}
GUI.enabled = lattice.target != null;
string label = GUI.enabled ? "take snapshot" : "take snapshot (no target)";
if (GUILayout.Button(label))
{
lattice.TakeTargetSnapshot();
}
GUILayout.Space(10);
GUI.enabled = true;
label = "live evaluation:" + (liveEvaluation ? "on" : "off");
if (GUILayout.Button(label))
{
liveEvaluation = !liveEvaluation;
}
GUI.enabled = true;
label = "evaluate vertices";
if (!lattice.HasSnapshot)
{
GUI.enabled = false;
label = "evaluate vertices (no snapshot)";
}
if (GUILayout.Button(label))
{
lattice.UpdateTargetSnapshotVertices();
}
GUI.enabled = true;
}
GUILayout.EndVertical();
GUILayout.EndArea();
Handles.EndGUI();
}