public Vector3 getPositionAtFrame(Transform t, int frame, int frameRate, bool forceWorld)
{
int keyCount = keys.Count;
if (keyCount <= 0)
{
return(GetPosition(t));
}
TranslationKey firstKey = keys[0] as TranslationKey;
//check if behind first key
if (frame <= firstKey.frame && (!firstKey.canTween || firstKey.path.Length == 1))
{
return(convertPosition(t, firstKey.position, forceWorld));
}
TranslationKey lastKey = keyCount == 1 ? firstKey : keys[keyCount - 1] as TranslationKey;
//check if past last key
if (frame >= lastKey.endFrame && !lastKey.canTween)
{
return(convertPosition(t, lastKey.position, forceWorld));
}
//check in-between
for (int i = 0; i < keyCount; i++)
{
TranslationKey key = keys[i] as TranslationKey;
TranslationKey keyNext = i < keyCount - 1 ? keys[i + 1] as TranslationKey : null;
if (frame >= key.endFrame && keyNext != null && (!keyNext.canTween || keyNext.path.Length > 1))
{
continue;
}
if (!key.canTween || key.path.Length == 1)
{
return(convertPosition(t, key.position, forceWorld));
}
else if (key.path.Length == 0)
{
continue;
}
float fNumFrames = (float)key.getNumberOfFrames(frameRate);
float _value;
float framePositionInPath = Mathf.Clamp(frame - (float)key.frame, 0f, fNumFrames);
if (key.hasCustomEase())
{
_value = Utility.EaseCustom(0.0f, 1.0f, framePositionInPath / fNumFrames, key.easeCurve);
}
else
{
var ease = Utility.GetEasingFunction((Ease)key.easeType);
_value = ease(framePositionInPath, fNumFrames, key.amplitude, key.period);
if (float.IsNaN(_value)) //this really shouldn't happen...
{
break;
}
}
return(convertPosition(t, key.GetPoint(Mathf.Clamp01(_value)), forceWorld));
}
Debug.LogError("Animator: Could not get " + t.name + " position at frame '" + frame + "'");
return(GetPosition(t));
}
public Vector3 getPositionAtFrame(Transform t, float frame, int frameRate, bool forceWorld)
{
int keyCount = keys.Count;
if (keyCount <= 0)
{
return(GetPosition(t));
}
int iFrame = Mathf.RoundToInt(frame);
TranslationKey firstKey = keys[0] as TranslationKey;
//check if only key or behind first key
if (keyCount == 1 || iFrame <= firstKey.frame)
{
return(convertPosition(t, firstKey.position, forceWorld));
}
//check in-between
for (int i = 0; i < keyCount; i++)
{
TranslationKey key = keys[i] as TranslationKey;
if (key.endFrame == -1) //invalid
{
continue;
}
//end of last path in track?
if (iFrame >= key.endFrame)
{
if (key.interp == Key.Interpolation.None)
{
if (i + 1 == keyCount)
{
return(convertPosition(t, key.position, forceWorld));
}
}
else if (key.interp == Key.Interpolation.Linear || key.path == null)
{
if (i + 1 == keyCount - 1)
{
var pt = ((TranslationKey)keys[i + 1]).position;
return(convertPosition(t, pt, forceWorld));
}
}
else if (key.interp == Key.Interpolation.Curve)
{
if (i + key.keyCount == keyCount) //end of last path in track?
{
return(convertPosition(t, ((TranslationKey)keys[i + key.keyCount - 1]).position, forceWorld));
}
}
continue;
}
if (key.interp == Key.Interpolation.None)
{
return(convertPosition(t, key.position, forceWorld));
}
else if (key.interp == Key.Interpolation.Linear || key.path == null)
{
var keyNext = keys[i + 1] as TranslationKey;
float numFrames = (float)key.getNumberOfFrames(frameRate);
float framePositionInAction = Mathf.Clamp(frame - (float)key.frame, 0f, numFrames);
var start = key.position;
var end = keyNext.position;
if (key.hasCustomEase())
{
return(convertPosition(t, Vector3.Lerp(start, end, Utility.EaseCustom(0.0f, 1.0f, framePositionInAction / numFrames, key.easeCurve)), forceWorld));
}
else
{
var ease = Utility.GetEasingFunction((Ease)key.easeType);
return(convertPosition(t, Vector3.Lerp(start, end, ease(framePositionInAction, numFrames, key.amplitude, key.period)), forceWorld));
}
}
else
{
float _value = Mathf.Clamp01((frame - key.frame) / key.getNumberOfFrames(frameRate));
var pt = key.GetPoint(_value);
return(convertPosition(t, pt, forceWorld));
}
}
return(GetPosition(t)); //last key is impartial tween
}
// preview a frame in the scene view
public override void previewFrame(ITarget itarget, float frame, int frameRate, bool play, float playSpeed)
{
Transform t = GetTarget(itarget) as Transform;
if (!t)
{
return;
}
int keyCount = keys.Count;
if (keys == null || keyCount <= 0)
{
return;
}
int iFrame = Mathf.RoundToInt(frame);
TranslationKey firstKey = keys[0] as TranslationKey;
//check if behind first key
if (iFrame <= firstKey.frame && (!firstKey.canTween || firstKey.path.Length == 1))
{
SetPosition(t, firstKey.position);
return;
}
TranslationKey lastKey = keyCount == 1 ? firstKey : keys[keyCount - 1] as TranslationKey;
//check if past last key
if (iFrame >= lastKey.endFrame)
{
SetPosition(t, lastKey.position);
return;
}
//check in-between
for (int i = 0; i < keyCount; i++)
{
TranslationKey key = keys[i] as TranslationKey;
if (key.path == null)
{
continue;
}
if (iFrame >= key.endFrame && i < keyCount - 1)
{
continue;
}
if ((!key.canTween || key.path.Length <= 1))
{
SetPosition(t, key.position);
return;
}
float fNumFrames = (float)key.getNumberOfFrames(frameRate);
float _value;
float framePositionInPath = Mathf.Clamp(frame - (float)key.frame, 0f, fNumFrames);
if (key.hasCustomEase())
{
_value = Utility.EaseCustom(0.0f, 1.0f, framePositionInPath / fNumFrames, key.easeCurve);
}
else
{
var ease = Utility.GetEasingFunction((Ease)key.easeType);
_value = ease(framePositionInPath, fNumFrames, key.amplitude, key.period);
if (float.IsNaN(_value)) //this really shouldn't happen...
{
return;
}
}
SetPosition(t, key.GetPoint(Mathf.Clamp01(_value)));
return;
}
}
// preview a frame in the scene view
public override void previewFrame(ITarget itarget, float frame, int frameRate, bool play, float playSpeed)
{
Transform t = GetTarget(itarget) as Transform;
if (!t)
{
return;
}
int keyCount = keys.Count;
if (keyCount <= 0)
{
return;
}
int iFrame = Mathf.RoundToInt(frame);
TranslationKey firstKey = keys[0] as TranslationKey;
//check if only key or behind first key
if (keyCount == 1 || iFrame < firstKey.frame)
{
t.localPosition = convertPosition(t, firstKey.position, false);
return;
}
else if (iFrame == firstKey.frame)
{
if (firstKey.interp == Key.Interpolation.Linear || firstKey.path == null) //apply orientation
{
t.localPosition = convertPosition(t, firstKey.position, false);
if (firstKey.orientMode != OrientMode.None)
{
var nextPt = ((TranslationKey)keys[1]).position;
if (t.parent)
{
nextPt = t.parent.TransformPoint(nextPt);
}
t.rotation = firstKey.GetOrientation(t, nextPt);
}
}
else if (firstKey.interp == Key.Interpolation.Curve) //apply orientation
{
t.localPosition = convertPosition(t, firstKey.position, false);
if (firstKey.orientMode != OrientMode.None)
{
t.rotation = firstKey.GetOrientation(t, 0f);
}
}
else
{
t.localPosition = convertPosition(t, firstKey.position, false);
}
return;
}
//check in-between
for (int i = 0; i < keyCount; i++)
{
TranslationKey key = keys[i] as TranslationKey;
if (key.endFrame == -1) //invalid
{
continue;
}
//end of last path in track?
if (iFrame >= key.endFrame)
{
if (key.interp == Key.Interpolation.None)
{
if (i + 1 == keyCount)
{
t.localPosition = convertPosition(t, key.position, false);
return;
}
}
else if (key.interp == Key.Interpolation.Linear || key.path == null)
{
if (i + 1 == keyCount - 1)
{
var pt = ((TranslationKey)keys[i + 1]).position;
t.localPosition = convertPosition(t, pt, false);
if (key.orientMode != OrientMode.None && iFrame == key.endFrame) //only apply rotation if we are at end of frame
{
Vector3 ptW, prevPtW;
if (t.parent)
{
ptW = t.parent.TransformPoint(pt);
prevPtW = t.parent.TransformPoint(key.position);
}
else
{
ptW = pt;
prevPtW = key.position;
}
var dir = (ptW - prevPtW).normalized;
t.rotation = key.GetOrientation(t, ptW + dir);
}
return;
}
}
else if (key.interp == Key.Interpolation.Curve)
{
if (i + key.keyCount == keyCount) //end of last path in track?
{
t.localPosition = convertPosition(t, ((TranslationKey)keys[i + key.keyCount - 1]).position, false);
if (key.orientMode != OrientMode.None && iFrame == key.endFrame) //only apply rotation if we are at end of frame
{
t.rotation = key.GetOrientation(t, 1f);
}
return;
}
}
continue;
}
if (key.interp == Key.Interpolation.None)
{
t.localPosition = convertPosition(t, key.position, false);
}
else if (key.interp == Key.Interpolation.Linear || key.path == null)
{
var keyNext = keys[i + 1] as TranslationKey;
float numFrames = (float)key.getNumberOfFrames(frameRate);
float framePositionInAction = Mathf.Clamp(frame - (float)key.frame, 0f, numFrames);
var start = key.position;
var end = keyNext.position;
if (key.hasCustomEase())
{
t.localPosition = convertPosition(t, Vector3.Lerp(start, end, Utility.EaseCustom(0.0f, 1.0f, framePositionInAction / numFrames, key.easeCurve)), false);
}
else
{
var ease = Utility.GetEasingFunction((Ease)key.easeType);
t.localPosition = convertPosition(t, Vector3.Lerp(start, end, ease(framePositionInAction, numFrames, key.amplitude, key.period)), false);
}
if (key.orientMode != OrientMode.None)
{
t.rotation = key.GetOrientation(t, t.parent ? t.parent.TransformPoint(end) : end);
}
}
else
{
float _value = Mathf.Clamp01((frame - key.frame) / key.getNumberOfFrames(frameRate));
var pt = key.GetPoint(_value);
t.localPosition = convertPosition(t, pt, false);
if (key.orientMode != OrientMode.None)
{
t.rotation = key.GetOrientation(t, _value);
}
}
return;
}
//var lpos = getPositionAtFrame(t, frame, frameRate, false);
//t.localPosition = lpos;
}