private Vector3 GetInterpPathV3()
{
float t = currentPercentage - pathWeight[pathWeight.Length - 1];
if (t >= pathWeight[currentStep])
{
pathWeight[pathWeight.Length - 1] += pathWeight[currentStep];
t -= pathWeight[currentStep];
++currentStep;
}
t /= pathWeight[currentStep];
switch (pathType)
{
case PathType.Linear:
return(Vector3.Lerp(pathNodes[LimitRangeInt(currentStep, pathNodes.Length - 1)],
pathNodes[LimitRangeInt(currentStep + 1, pathNodes.Length - 1)], t)); // 线性插值
case PathType.CatmullRom:
return(TweenMath.CatmullRomPoint(pathNodes[LimitRangeInt(currentStep - 1, pathNodes.Length - 1)],
pathNodes[LimitRangeInt(currentStep, pathNodes.Length - 1)],
pathNodes[LimitRangeInt(currentStep + 1, pathNodes.Length - 1)],
pathNodes[LimitRangeInt(currentStep + 2, pathNodes.Length - 1)], t));
default:
return(Vector3.zero);
}
}
void OnDrawGizmos() //画线
{
#if UNITY_EDITOR
Handles.color = DebugColor;
Matrix4x4 mtx = GetCurveMatrix();
Vector3 oldVector3 = Vector3.zero, nowVector3 = Vector3.zero;
float part = 20;
for (int i = 0; i < localNodes.Count; i++)
{
if (i != localNodes.Count - 1 || isClosedLoop)
{
oldVector3 = TweenMath.CatmullRomPoint(localNodes[LimitRangeInt(i - 1, localNodes.Count - 1)],
localNodes[LimitRangeInt(i, localNodes.Count - 1)],
localNodes[LimitRangeInt(i + 1, localNodes.Count - 1)],
localNodes[LimitRangeInt(i + 2, localNodes.Count - 1)], 0);
oldVector3 = mtx * ToVec4(oldVector3);
for (int j = 1; j <= part; j++)
{
nowVector3 = TweenMath.CatmullRomPoint(localNodes[LimitRangeInt(i - 1, localNodes.Count - 1)],
localNodes[LimitRangeInt(i, localNodes.Count - 1)],
localNodes[LimitRangeInt(i + 1, localNodes.Count - 1)],
localNodes[LimitRangeInt(i + 2, localNodes.Count - 1)], j / part);
nowVector3 = mtx * ToVec4(nowVector3);
Handles.DrawLine(oldVector3, nowVector3);
oldVector3 = nowVector3;
}
}
}
#endif
}
private void InitPathWeight()
{
currentStep = 0;
if (pathType == PathType.CatmullRom)
{
float part = 20;
pathWeight = new float[pathNodes.Length];
float sum = 0;
Vector3 oldVector3 = Vector3.zero, nowVector3 = Vector3.zero;
for (int i = 0; i < pathNodes.Length - 1; i++)
{
pathWeight[i] = 0; //此时保存长度
oldVector3 = TweenMath.CatmullRomPoint(pathNodes[LimitRangeInt(i - 1, pathNodes.Length - 1)],
pathNodes[LimitRangeInt(i, pathNodes.Length - 1)],
pathNodes[LimitRangeInt(i + 1, pathNodes.Length - 1)],
pathNodes[LimitRangeInt(i + 2, pathNodes.Length - 1)], 0);
for (int j = 1; j <= part; j++)
{
nowVector3 = TweenMath.CatmullRomPoint(pathNodes[LimitRangeInt(i - 1, pathNodes.Length - 1)],
pathNodes[LimitRangeInt(i, pathNodes.Length - 1)],
pathNodes[LimitRangeInt(i + 1, pathNodes.Length - 1)],
pathNodes[LimitRangeInt(i + 2, pathNodes.Length - 1)], j / part);
pathWeight[i] += Vector3.Distance(oldVector3, nowVector3);
oldVector3 = nowVector3;
}
sum += pathWeight[i];
}
for (int i = 0; i < pathWeight.Length - 1; i++)
{
pathWeight[i] = pathWeight[i] / sum; // 插值百分比
}
pathWeight[pathWeight.Length - 1] = 0; //保存已插值完成的百分比
}
if (pathType == PathType.Linear)
{
// 根据距离分配时间
pathWeight = new float[pathNodes.Length];
float sum = 0;
for (int i = 0; i < pathNodes.Length - 1; i++)
{
pathWeight[i] = Vector3.Distance(pathNodes[i], pathNodes[i + 1]);
sum += pathWeight[i];
}
for (int i = 0; i < pathWeight.Length - 1; i++)
{
pathWeight[i] = pathWeight[i] / sum; // 插值百分比
}
pathWeight[pathWeight.Length - 1] = 0; //已插值完成的百分比
}
}
