void CreatePoint()
{
GameObject gObj = ((GameObject)PrefabUtility.InstantiatePrefab(pointPrefab.gameObject));
gObj.transform.SetParent(this.transform);
Transform trans = gObj.transform;
if (bPoints == null || bPoints.Count < 1)
{
bPoints = new List <BezierPt> ();
trans.localPosition = Vector3.zero;
trans.localRotation = Quaternion.identity;
}
else
{
Transform preTrans = bPoints[bPoints.Count - 1].transform;
trans.localPosition = preTrans.localPosition;
trans.localRotation = preTrans.localRotation;
}
BezierPt pt = gObj.GetComponent <BezierPt> ();
bPoints.Add(pt);
gObj.name = "Bezier (" + (bPoints.Count - 1) + ")";
}
public BezierPath GetBezierPath(float precision = 0.05f)
{
List <Quaternion> rotList = new List <Quaternion>();
for (int i = 0; i < bPoints.Count; i++)
{
BezierPt b = bPoints[i];
if (useLocalSpace)
{
rotList.Add(b.transform.localRotation);
}
else
{
rotList.Add(b.transform.rotation);
}
}
List <Vector3> nodes = new List <Vector3>();
for (int i = 0; i < bPoints.Count - 1; i++)
{
BezierPt start = bPoints[i];
BezierPt end = bPoints[i + 1];
if (useLocalSpace)
{
nodes.Add(this.transform.InverseTransformPoint(start.transform.position));
nodes.Add(this.transform.InverseTransformPoint(end.inTrans.position));
nodes.Add(this.transform.InverseTransformPoint(start.outTrans.position));
nodes.Add(this.transform.InverseTransformPoint(end.transform.position));
}
else
{
nodes.Add(start.transform.position);
nodes.Add(end.inTrans.position);
nodes.Add(start.outTrans.position);
nodes.Add(end.transform.position);
}
}
BezierPath bp = new BezierPath(nodes.ToArray(), rotList.ToArray(), precision);
_length = bp.length;
return(bp);
}
// Update is called once per frame
void OnDrawGizmos()
{
List <Quaternion> rotList = new List <Quaternion> ();
for (int i = 0; i < bPoints.Count; i++)
{
BezierPt b = bPoints [i];
rotList.Add(b.transform.rotation);
}
List <Vector3> nodes = new List <Vector3> ();
for (int i = 0; i < bPoints.Count - 1; i++)
{
BezierPt start = bPoints [i];
BezierPt end = bPoints [i + 1];
nodes.Add(start.transform.position);
nodes.Add(end.inTrans.position);
nodes.Add(start.outTrans.position);
nodes.Add(end.transform.position);
}
path = new BezierPath(nodes.ToArray(), rotList.ToArray());
// draw
float delta = 1.0f / split;
Gizmos.color = drawColor;
for (int i = 0; i < split - 1; i++)
{
float t0 = delta * i;
float t1 = delta * (i + 1);
Vector3 pos0 = this.GetPointAt(t0);
Vector3 pos1 = this.GetPointAt(t1);
Gizmos.DrawLine(pos0, pos1);
}
for (int i = 0; i < split; i++)
{
// float v = (float)i / split;
float v = delta * i;
BezierPointInfo pInfo = path.GetBezierPointInfo(v);
Vector3 pt = pInfo.point;
Gizmos.color = drawColor;
Gizmos.DrawWireSphere(pt, 0.25f);
// tangent
Gizmos.color = Color.blue;
Vector3 tangent = pInfo.tangent;
Gizmos.DrawRay(pt, tangent);
Quaternion quat = pInfo.rotation;
Gizmos.color = Color.green;
Gizmos.DrawRay(pt, quat * Vector3.up);
Gizmos.color = Color.red;
Gizmos.DrawRay(pt, quat * Vector3.right);
}
}
[SerializeField] public float _length = 0;// for Debug
void OnDrawGizmos()
{
if (!isDrawGizmos)
{
return;
}
//if(Application.isPlaying){ return; }
if (bPoints == null || bPoints.Count < 2)
{
return;
}
bool isChange = false;
// --------
// delete point
for (int i = bPoints.Count - 1; i >= 0; i--)
{
BezierPt b = bPoints [i];
if (b == null)
{
bPoints.RemoveAt(i);
isChange = true;
}
}
// transformの変更検知
for (int i = 0; i < bPoints.Count; i++)
{
BezierPt b = bPoints[i];
if (b.isTransformChange)
{
isChange = true;
break;
}
}
// --------
// updatePath
if (isChange || path == null)
{
path = GetBezierPath(precision);
}
// --------
// draw
float delta = 1.0f / split;
Gizmos.color = drawColor;
for (int i = 0; i < split - 1; i++)
{
if (i % 2 == 0)
{
float t0 = delta * i;
float t1 = delta * (i + 1);
Vector3 pos0 = GetPointAt(t0);
Vector3 pos1 = GetPointAt(t1);
Gizmos.DrawLine(pos0, pos1);
}
}
if (isDrawPoints)
{
// point and tangent
for (int i = 0; i < split; i++)
{
float v = delta * i;
BezierPointInfo pInfo = GetBezierPointInfo(v);
Vector3 pt = pInfo.point;
Gizmos.color = drawColor;
Gizmos.DrawWireSphere(pt, 0.25f);
// tangent
Gizmos.color = Color.blue;
Vector3 tangent = pInfo.tangent;
Gizmos.DrawRay(pt, tangent);
Quaternion quat = pInfo.rotation;
Gizmos.color = Color.green;
Gizmos.DrawRay(pt, quat * Vector3.up);
Gizmos.color = Color.red;
Gizmos.DrawRay(pt, quat * Vector3.right);
}
}
}
