public Bezier3D AddSegment()
{
GameObject go = GameObject.Instantiate(segmentPrefab, Vector3.zero, Quaternion.identity) as GameObject;
go.transform.SetParent(this.transform, true);
Bezier3D segment = go.GetComponent <Bezier3D>();
if (segment != null)
{
segments.Add(segment);
}
if (lastSegment != null)
{
segment.prevSegment = lastSegment;
lastSegment.nextSegment = segment;
segment.p1 = lastSegment.p4;
segment.p2 += lastSegment.p4;
segment.p3 += lastSegment.p4;
segment.p4 += lastSegment.p4;
lastSegment.UpdateMesh();
}
segment.UpdateMesh();
lastSegment = segment;
return(segment);
}
public void OnSceneGUI()
{
Bezier3D curve = target as Bezier3D;
Transform handleTransform = curve.transform;
Quaternion handleRotation = handleTransform.rotation;
Vector3 p1 = handleTransform.TransformPoint(curve.p1);
Vector3 p2 = handleTransform.TransformPoint(curve.p2);
Vector3 p3 = handleTransform.TransformPoint(curve.p3);
Vector3 p4 = handleTransform.TransformPoint(curve.p4);
if (curve.prevSegment != null)
{
// P1
EditorGUI.BeginChangeCheck();
handleRotation = Handles.DoRotationHandle(handleRotation, p1);
Handles.color = Color.red;
Handles.SphereCap(0, p1, Quaternion.identity, 3f);
if (EditorGUI.EndChangeCheck())
{
curve.p1 = handleTransform.InverseTransformPoint(p1);
float rotation = handleRotation.eulerAngles.z;
if (rotation > 50 && rotation < 180)
{
rotation = 50;
}
if (rotation > 180 && rotation < 310)
{
rotation = 310;
}
if (rotation >= 310)
{
rotation = -360 + rotation;
}
curve.rotationP1 = rotation;
curve.ReDrawMesh();
curve.UpdateMesh();
}
// P2
EditorGUI.BeginChangeCheck();
p2 = Handles.DoPositionHandle(p2, handleRotation);
Handles.color = Color.gray;
Handles.SphereCap(0, p2, Quaternion.identity, 1.5f);
if (EditorGUI.EndChangeCheck())
{
curve.p2 = handleTransform.InverseTransformPoint(p2);
curve.ReDrawMesh();
}
Handles.color = Color.gray;
Handles.DrawLine(p1, p2);
}
// P3
EditorGUI.BeginChangeCheck();
p3 = Handles.DoPositionHandle(p3, handleRotation);
Handles.color = Color.gray;
Handles.SphereCap(0, p3, Quaternion.identity, 1.5f);
if (EditorGUI.EndChangeCheck())
{
curve.p3 = handleTransform.InverseTransformPoint(p3);
curve.UpdateMesh();
}
// P4
EditorGUI.BeginChangeCheck();
p4 = Handles.DoPositionHandle(p4, handleRotation);
Handles.color = Color.gray;
Handles.SphereCap(0, p4, Quaternion.identity, 3f);
if (EditorGUI.EndChangeCheck())
{
curve.p4 = handleTransform.InverseTransformPoint(p4);
curve.UpdateMesh();
}
Handles.color = Color.gray;
Handles.DrawLine(p3, p4);
}
