Vector3 SampleKeyByTime(float t, GOECurvKeyFrame left, GOECurvKeyFrame right, GOECurvInterpolationType interpMode, Vector3 val, Vector3 val2)
{
if (interpMode == GOECurvInterpolationType.Const || left.Time == right.Time)
{
return(val);
}
else if (interpMode == GOECurvInterpolationType.Linear)
{
float durance = right.Time - left.Time;
if (0 == durance)
{
return(val);
}
else
{
float factor = (t - left.Time) / durance;
return(val * (1 - factor) + val2 * factor);
}
}
else if (interpMode == GOECurvInterpolationType.Bezier)
{
float x = SampleBezierByTime(t, left, right, val.x, val2.x);
float y = SampleBezierByTime(t, left, right, val.y, val2.y);
float z = SampleBezierByTime(t, left, right, val.z, val2.z);
}
return(val);
}
public void SampleByTime(float t, out Vector3 pos, out Quaternion q, out Vector3 s)
{
int left = 0, right = 0;
pos = Vector3.zero;
q = Quaternion.identity;
s = Vector3.one;
GOECurveFindIndexResults b = FindIndexByTime(t, out left, out right);
if (b > GOECurveFindIndexResults.FailedNoKeyFrame)
{
GOECurvKeyFrame l = keyFrames[left];
GOECurvKeyFrame r = keyFrames[right];
GOECurvInterpolationType interpMode = l.PositionInterpolationType;
pos = SampleKeyByTime(t, l, r, interpMode, l.Position, r.Position);
interpMode = l.RotationInterpolationType;
if (interpMode == GOECurvInterpolationType.Const || left == right)
{
q = l.Rotation;
}
else if (interpMode == GOECurvInterpolationType.Linear)
{
Quaternion ql, qr;
ql = l.Rotation;
qr = r.Rotation;
q = Quaternion.Slerp(ql, qr, (t - l.Time) / (r.Time - l.Time));
}
interpMode = l.ScaleInterpolationType;
s = SampleKeyByTime(t, l, r, interpMode, l.Scale, r.Scale);
}
}
public void AddKey(float time, ref Vector3 vp, ref Quaternion vr, ref Vector3 vs, GOECurvInterpolationType pt = GOECurvInterpolationType.Linear, GOECurvInterpolationType rt = GOECurvInterpolationType.Linear, GOECurvInterpolationType st = GOECurvInterpolationType.Linear)
{
GOECurvKeyFrame kf = new GOECurvKeyFrame();
kf.Time = time;
kf.Position = vp;
kf.Rotation = vr;
kf.Scale = vs;
kf.PositionInterpolationType = pt;
kf.RotationInterpolationType = rt;
kf.ScaleInterpolationType = st;
int left, right;
GOECurveFindIndexResults b = FindIndexByTime(time, out left, out right);
if (b == GOECurveFindIndexResults.AfterAllKeyFrame || b == GOECurveFindIndexResults.FailedNoKeyFrame)
{
keyFrames.Add(kf);
}
else if (b == GOECurveFindIndexResults.BeforeAllKeyFrame)
{
KeyFrames.Insert(0, kf);
}
else
{
keyFrames.Insert(left + 1, kf);
}
if (EditorGameObject)
{
kf.EnsureEditorGO(EditorGameObject);
UnityEditor.Selection.activeGameObject = kf.EditorGameObject;
}
}
public void SampleByIndex(int idx, ref Vector3 pos, ref Quaternion q, ref Vector3 s)
{
GOECurvKeyFrame frame = keyFrames[idx];
pos = frame.Position;
q = frame.Rotation;
s = frame.Scale;
}
public void SampleByIndex2(int idx, ref Vector3 pos, ref Quaternion q, ref Vector3 s,
ref GOECurvInterpolationType posInterpMode, ref GOECurvInterpolationType rotInterpMode, ref GOECurvInterpolationType scaleInterpMode)
{
SampleByIndex(idx, ref pos, ref q, ref s);
GOECurvKeyFrame frame = keyFrames[idx];
posInterpMode = frame.PositionInterpolationType;
rotInterpMode = frame.RotationInterpolationType;
scaleInterpMode = frame.ScaleInterpolationType;
}
public void MoveKey(int keyIdx, float time)
{
GOECurvKeyFrame kf = keyFrames[keyIdx];
kf.Time = time;
keyFrames.RemoveAt(keyIdx);
int left, right;
GOECurveFindIndexResults b = FindIndexByTime(time, out left, out right);
if (b == GOECurveFindIndexResults.AfterAllKeyFrame || b == GOECurveFindIndexResults.FailedNoKeyFrame)
{
keyFrames.Add(kf);
}
else
{
keyFrames.Insert(left + 1, kf);
}
}
float SampleBezierByTime(float t, GOECurvKeyFrame left, GOECurvKeyFrame right, float val, float val2)
{
Vector2 v0 = new Vector2(left.Time, val);
Vector2 v3 = new Vector2(right.Time, val2);
float durance = right.Time - left.Time;
float diff = val2 - val;
float len = Vector2.Distance(v0, v3);
float l = len / 2;//使用1/4作为切线控制点长度//
Vector2 v1 = new Vector2(1, left.OutTangent);
v1 = v0 + v1.normalized * l;
Vector2 v2 = new Vector2(1, right.InTangent);
v2 = v3 - v2.normalized * l;
float a = (t - left.Time) / durance;
float b = 1 - a;
Vector2 v = v0 * b * b * b + 3 * v1 * a * b * b + 3 * v2 * a * a * b + v3 * a * a * a;
return(v.y);
}
