protected virtual void DrawSeparateTangentEditor(int index, HermiteAnchor anchor)
{
if (index > 0)
{
Handles.color = Color.cyan;
var inTangent = anchor.point - anchor.inTangent;
Handles.DrawLine(anchor.point, inTangent);
DrawFreeMoveHandle(inTangent, Quaternion.identity, NodeSize, MoveSnap, SphereCap, position =>
{
anchor.inTangent = anchor.point - position;
Target.SetAnchor(index, anchor);
Target.Rebuild();
});
}
if (index < Target.AnchorsCount - 1)
{
Handles.color = Color.green;
var outTangent = anchor.point + anchor.outTangent;
Handles.DrawLine(anchor.point, outTangent);
DrawFreeMoveHandle(outTangent, Quaternion.identity, NodeSize, MoveSnap, SphereCap, position =>
{
anchor.outTangent = position - anchor.point;
Target.SetAnchor(index, anchor);
Target.Rebuild();
});
}
}
protected virtual void DrawInsertEditor(int index, HermiteAnchor anchor)
{
Handles.color = Color.green;
DrawAdaptiveButton(anchor.point, Quaternion.identity, NodeSize, NodeSize, SphereCap, () =>
{
var offset = Vector3.zero;
if (index > 0)
{
offset = (anchor.point - Target.GetAnchor(index - 1).point).normalized * GetHandleSize(anchor.point);
}
else
{
//Considering that it may be used on UI, so use Vector2.one.
offset = Target.transform.TransformVector(Vector2.one).normalized *GetHandleSize(anchor.point);
}
select = index + 1;
if (adsorbent > 0)
{
adsorbent++;
}
Target.InsertAnchor(index + 1, new HermiteAnchor(anchor.point + offset));
Target.Rebuild();
});
}
protected virtual void DrawRemoveEditor(int index, HermiteAnchor anchor)
{
Handles.color = Color.red;
DrawAdaptiveButton(anchor.point, Quaternion.identity, NodeSize, NodeSize, SphereCap, () =>
{
if (select >= index)
{
select--;
}
if (adsorbent > 0)
{
adsorbent--;
}
Target.RemoveAnchor(index);
Target.Rebuild();
});
}
protected virtual void DrawSelectEditor(int index, HermiteAnchor anchor)
{
var nodeSize = NodeSize;
if (index == 0 || index == Target.AnchorsCount - 1)
{
if (Target.IsClose)
{
if (index != adsorbent)
{
return;
}
nodeSize = NodeSize * 1.25f;
}
}
Handles.color = Color.blue;
DrawAdaptiveButton(anchor.point, Target.transform.rotation, nodeSize, nodeSize, SphereCap, () => select = index);
}
protected virtual void DrawMoveEditor(int index, HermiteAnchor anchor)
{
Handles.color = Color.white;
if (index == 0 || index == Target.AnchorsCount - 1)
{
var nodeSize = NodeSize;
if (Target.IsClose)
{
if (index != adsorbent && index > 0)
{
return;
}
nodeSize = NodeSize * 1.25f;
}
DrawFreeMoveHandle(anchor.point, Quaternion.identity, nodeSize, MoveSnap, SphereCap, position =>
{
var adjacent = Target.GetAnchor(Target.AnchorsCount - 1 - index);
if (Vector3.Distance(position, adjacent.point) <= NodeSize * GetHandleSize(position))
{
adsorbent = index;
position = adjacent.point;
}
else
{
adsorbent = -1;
}
anchor.point = position;
Target.SetAnchor(index, anchor);
Target.Rebuild();
});
}
else
{
DrawFreeMoveHandle(anchor.point, Quaternion.identity, NodeSize, MoveSnap, SphereCap, position =>
{
anchor.point = position;
Target.SetAnchor(index, anchor);
Target.Rebuild();
});
}
}
protected virtual void DrawUnifyTangentEditor(int index, HermiteAnchor anchor)
{
Handles.color = Color.cyan;
if (index > 0)
{
var inTangent = anchor.point - anchor.inTangent;
Handles.DrawLine(anchor.point, inTangent);
DrawFreeMoveHandle(inTangent, Quaternion.identity, NodeSize, MoveSnap, SphereCap, position =>
{
anchor.inTangent = anchor.outTangent = anchor.point - position;
Target.SetAnchor(index, anchor);
if (Target.IsClose && index == Target.AnchorsCount - 1)
{
var firstAnchor = Target.GetAnchor(0);
firstAnchor.outTangent = anchor.inTangent;
Target.SetAnchor(0, firstAnchor);
}
Target.Rebuild();
});
}
if (index < Target.AnchorsCount - 1)
{
var outTangent = anchor.point + anchor.outTangent;
Handles.DrawLine(anchor.point, outTangent);
DrawFreeMoveHandle(outTangent, Quaternion.identity, NodeSize, MoveSnap, SphereCap, position =>
{
anchor.inTangent = anchor.outTangent = position - anchor.point;
Target.SetAnchor(index, anchor);
if (Target.IsClose && index == 0)
{
var lastAnchor = Target.GetAnchor(Target.AnchorsCount - 1);
lastAnchor.inTangent = anchor.outTangent;
Target.SetAnchor(Target.AnchorsCount - 1, lastAnchor);
}
Target.Rebuild();
});
}
}
