/// <summary>
/// 设置夹点
/// </summary>
public override void SetGripPointAt(int index, GripPoint gripPoint, LitMath.Vector2 newPosition)
{
if (index == 0)
{
_position = newPosition;
}
}
/// <summary>
/// 设置夹点
/// </summary>
public override void SetGripPointAt(int index, GripPoint gripPoint, LitMath.Vector2 newPosition)
{
switch (gripPoint.type)
{
case GripPointType.End:
{
this.SetPointAt(index, newPosition);
}
break;
case GripPointType.Mid:
{
int numOfVertices = NumberOfVertices;
int i = index - numOfVertices;
if (i >= 0 && i <= numOfVertices - 1)
{
int vIndex1st = i;
int vIndex2nd = i + 1;
if (vIndex2nd == numOfVertices)
{
vIndex2nd = 0;
}
LitMath.Vector2 t = newPosition - gripPoint.position;
this.SetPointAt(vIndex1st, (LitMath.Vector2)gripPoint.xData1 + t);
this.SetPointAt(vIndex2nd, (LitMath.Vector2)gripPoint.xData2 + t);
}
}
break;
default:
break;
}
}
/// <summary>
/// 获取夹点
/// </summary>
public override List <GripPoint> GetGripPoints()
{
List <GripPoint> gripPnts = new List <GripPoint>();
int numOfVertices = NumberOfVertices;
for (int i = 0; i < numOfVertices; ++i)
{
gripPnts.Add(new GripPoint(GripPointType.End, _vertices[i]));
}
for (int i = 0; i < numOfVertices - 1; ++i)
{
GripPoint midGripPnt = new GripPoint(GripPointType.Mid, (_vertices[i] + _vertices[i + 1]) / 2);
midGripPnt.xData1 = _vertices[i];
midGripPnt.xData2 = _vertices[i + 1];
gripPnts.Add(midGripPnt);
}
if (_closed && numOfVertices > 2)
{
GripPoint midGripPnt = new GripPoint(GripPointType.Mid, (_vertices[0] + _vertices[numOfVertices - 1]) / 2);
midGripPnt.xData1 = _vertices[0];
midGripPnt.xData2 = _vertices[numOfVertices - 1];
gripPnts.Add(midGripPnt);
}
return(gripPnts);
}
/// <summary>
/// 设置夹点
/// </summary>
public override void SetGripPointAt(int index, GripPoint gripPoint, LitMath.Vector2 newPosition)
{
if (index == 0)
{
_center = newPosition;
}
else if (index >= 1 && index <= 3)
{
LitMath.Vector2 startPoint = this.startPoint;
LitMath.Vector2 endPoint = this.endPoint;
LitMath.Vector2 middlePoint = this.middlePoint;
if (index == 1)
{
startPoint = newPosition;
middlePoint = (LitMath.Vector2)gripPoint.xData1;
}
else if (index == 2)
{
endPoint = newPosition;
middlePoint = (LitMath.Vector2)gripPoint.xData1;
}
else if (index == 3)
{
middlePoint = newPosition;
}
LitMath.Circle2 newCircle = LitMath.Circle2.From3Points(
startPoint, middlePoint, endPoint);
if (newCircle.radius > 0)
{
LitMath.Vector2 xPositive = new LitMath.Vector2(1, 0);
double startAngle = LitMath.Vector2.SignedAngleInRadian(xPositive,
startPoint - newCircle.center);
double endAngle = LitMath.Vector2.SignedAngleInRadian(xPositive,
endPoint - newCircle.center);
double middleAngle = LitMath.Vector2.SignedAngleInRadian(xPositive,
middlePoint - newCircle.center);
startAngle = MathUtils.NormalizeRadianAngle(startAngle);
endAngle = MathUtils.NormalizeRadianAngle(endAngle);
middleAngle = MathUtils.NormalizeRadianAngle(middleAngle);
_center = newCircle.center;
_radius = newCircle.radius;
if (AngleInArcRange(middleAngle, startAngle, endAngle))
{
this.startAngle = startAngle;
this.endAngle = endAngle;
}
else
{
this.startAngle = endAngle;
this.endAngle = startAngle;
}
}
}
}
/// <summary>
/// 设置夹点
/// </summary>
public override void SetGripPointAt(int index, GripPoint gripPoint, LitMath.Vector2 newPosition)
{
if (index == 0)
{
_startPoint = newPosition;
}
else if (index == 1)
{
_endPoint = newPosition;
}
}
/// <summary>
/// 设置夹点
/// </summary>
public override void SetGripPointAt(int index, GripPoint gripPoint, LitMath.Vector2 newPosition)
{
if (index == 0)
{
_center = newPosition;
}
else if (index >= 1 && index <= 4)
{
_radius = (newPosition - _center).length;
}
}
/// <summary>
/// 设置夹点
/// </summary>
public override void SetGripPointAt(int index, GripPoint gripPoint, LitMath.Vector2 newPosition)
{
if (index == 0)
{
_basePoint = newPosition;
}
else if (index == 1)
{
LitMath.Vector2 dir = (newPosition - _basePoint).normalized;
if (!dir.Equals(new LitMath.Vector2(0, 0)))
{
_direction = dir;
}
}
}
/// <summary>
/// 获取夹点
/// </summary>
public override List <GripPoint> GetGripPoints()
{
List <GripPoint> gripPnts = new List <GripPoint>();
//
gripPnts.Add(new GripPoint(GripPointType.Center, _center));
//
GripPoint startGripPnt = new GripPoint(GripPointType.End, startPoint);
startGripPnt.xData1 = middlePoint;
gripPnts.Add(startGripPnt);
//
GripPoint endGripPnt = new GripPoint(GripPointType.End, endPoint);
endGripPnt.xData1 = middlePoint;
gripPnts.Add(endGripPnt);
//
gripPnts.Add(new GripPoint(GripPointType.Mid, middlePoint));
return(gripPnts);
}
/// <summary>
/// 设置夹点
/// </summary>
public virtual void SetGripPointAt(int index, GripPoint gripPoint, LitMath.Vector2 newPosition)
{
}
