public static float FaceAngle(Transform T1, Vector3 where, PBEnums.Axis withoutAxis = PBEnums.Axis.None)
{
float dot = FaceDot(T1, where, withoutAxis);
float angle = DotToAngle(dot);
return(angle);
}
public static float FaceDot(Transform T1, Vector3 where, PBEnums.Axis withoutAxis = PBEnums.Axis.None)
{
Vector3 pos = where - T1.position;
SetVector3WithoutAxis(ref pos, withoutAxis);
Vector3 forward = T1.forward.normalized;
SetVector3WithoutAxis(ref forward, withoutAxis);
float dot = Vector3.Dot(forward, pos.normalized);
return(dot);
}
/// <summary>
/// 设置vector3的一个轴的值为defaultValue（默认为0）
/// </summary>
/// <param name="v"></param>
/// <param name="axis"></param>
/// <param name="defaultValue"></param>
public static void SetVector3WithoutAxis(ref Vector3 v, PBEnums.Axis axis, float defaultValue = 0)
{
switch (axis)
{
case PBEnums.Axis.X:
v.Set(defaultValue, v.y, v.z);
break;
case PBEnums.Axis.Y:
v.Set(v.x, defaultValue, v.z);
break;
case PBEnums.Axis.Z:
v.Set(v.x, v.y, defaultValue);
break;
}
}
/// <summary>
/// obj2处于obj面向的点积
/// </summary>
/// <param name="T1"></param>
/// <param name="T2"></param>
/// <returns></returns>
public static float FaceDot(Transform T1, Transform T2, PBEnums.Axis withoutAxis = PBEnums.Axis.None)
{
return(FaceDot(T1, T2.position, withoutAxis));
}
/// <summary>
/// 面对面
/// </summary>
/// <param name="T1"></param>
/// <param name="T1DegreesDelta"></param>
/// <param name="T2"></param>
/// <param name="T2DegreesDelta"></param>
/// <param name="withoutAxis"></param>
/// <returns></returns>
public static bool FaceToFaceWithSpeed(Transform T1, float T1DegreesDelta, Transform T2, float T2DegreesDelta, PBEnums.Axis withoutAxis = PBEnums.Axis.None)
{
bool a = FaceToTargetWithSpeed(T1, T2.position, T1DegreesDelta, withoutAxis);
bool b = FaceToTargetWithSpeed(T2, T1.position, T2DegreesDelta, withoutAxis);
return(a && b);
}
/// <summary>
/// 面对面
/// </summary>
/// <param name="T1"></param>
/// <param name="T1FormRotation"></param>
/// <param name="T2"></param>
/// <param name="T2FormRotation"></param>
/// <param name="interpolate"></param>
/// <param name="lerpType"></param>
/// <param name="withoutAxis"></param>
/// <returns></returns>
public static bool FaceToFace(Transform T1, Quaternion T1FormRotation, Transform T2, Quaternion T2FormRotation, float interpolate = 1, PBEnums.LerpType lerpType = PBEnums.LerpType.Lerp, PBEnums.Axis withoutAxis = PBEnums.Axis.None)
{
bool a = FaceToTarget(T1, T1FormRotation, T2.position, interpolate, lerpType, withoutAxis);
bool b = FaceToTarget(T2, T2FormRotation, T1.position, interpolate, lerpType, withoutAxis);
return(a && b);
}
/// <summary>
/// 以一定距离面向target
/// </summary>
/// <param name="transform"></param>
/// <param name="toTarget"></param>
/// <param name="degreesDelta"></param>
/// <param name="withoutAxis"></param>
/// <returns></returns>
public static bool FaceToTargetWithSpeed(Transform transform, Vector3 toTarget, float degreesDelta, PBEnums.Axis withoutAxis = PBEnums.Axis.None)
{
Vector3 face = toTarget - transform.position;
SetVector3WithoutAxis(ref face, withoutAxis, 0);
Quaternion toRotation = Quaternion.LookRotation(face);
transform.rotation = Quaternion.RotateTowards(transform.rotation, toRotation, degreesDelta);
if (Quaternion.Angle(transform.rotation, toRotation) <= 0.1)
{
transform.rotation = toRotation;
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 使transform面向target
/// </summary>
/// <param name="transform">旋转对象</param>
/// <param name="formRotation">初始rotation</param>
/// <param name="toTarget">面向的位置</param>
/// <param name="interpolate">插值[0-1]</param>
/// <param name="lerpType">插值类型</param>
/// <param name="withoutAxis"></param>
/// <returns></returns>
public static bool FaceToTarget(Transform transform, Quaternion formRotation, Vector3 toTarget, float interpolate = 1, PBEnums.LerpType lerpType = PBEnums.LerpType.Lerp, PBEnums.Axis withoutAxis = PBEnums.Axis.None)
{
Vector3 face = toTarget - transform.position;
SetVector3WithoutAxis(ref face, withoutAxis, 0);
Quaternion toRotation = Quaternion.LookRotation(face);
if (interpolate > 1)
{
interpolate = 1;
}
switch (lerpType)
{
case PBEnums.LerpType.Lerp:
transform.rotation = Quaternion.Lerp(formRotation, toRotation, interpolate);
break;
case PBEnums.LerpType.Slerp:
transform.rotation = Quaternion.Slerp(formRotation, toRotation, interpolate);
break;
}
if (interpolate == 1)
{
return(true);
}
else
{
return(false);
}
}
