public override void previewFrame(ITarget itarget, float frame, int frameRate, bool play, float playSpeed)
{
Transform t = GetTarget(itarget) as Transform;
if (keys == null || keys.Count <= 0)
{
return;
}
// if before or equal to first frame, or is the only frame
OrientationKey firstKey = keys[0] as OrientationKey;
if (firstKey.endFrame == -1 || (frame <= (float)firstKey.frame && !firstKey.canTween))
{
Transform keyt = firstKey.GetTarget(itarget);
if (keyt)
{
t.LookAt(keyt);
}
return;
}
for (int i = 0; i < keys.Count; i++)
{
OrientationKey key = keys[i] as OrientationKey;
OrientationKey keyNext = i + 1 < keys.Count ? keys[i + 1] as OrientationKey : null;
if (frame >= (float)key.endFrame && keyNext != null && (!keyNext.canTween || keyNext.endFrame != -1))
{
continue;
}
Transform keyt = key.GetTarget(itarget);
// if no ease
if (!key.canTween || keyNext == null)
{
if (keyt)
{
t.LookAt(keyt);
}
return;
}
// else easing function
Transform keyet = keyNext.GetTarget(itarget);
float numFrames = (float)key.getNumberOfFrames(frameRate);
float framePositionInAction = Mathf.Clamp(frame - (float)key.frame, 0f, numFrames);
t.rotation = key.getQuaternionAtPercent(t, keyt, keyet, framePositionInAction / numFrames);
return;
}
}
// draw gizmos
public override void drawGizmos(ITarget itarget, float gizmo_size, bool inPlayMode, int frame)
{
if (!obj)
{
return;
}
// draw line to target
bool isLineDrawn = false;
if (!inPlayMode)
{
for (int i = 0; i < keys.Count; i++)
{
OrientationKey key = keys[i] as OrientationKey;
if (key == null)
{
continue;
}
OrientationKey keyNext = i + 1 < keys.Count ? keys[i + 1] as OrientationKey : null;
Transform t = key.GetTarget(itarget);
if (t)
{
//draw target
Gizmos.color = new Color(245f / 255f, 107f / 255f, 30f / 255f, 1f);
Gizmos.DrawSphere(t.position, 0.2f * (AnimateTimeline.e_gizmoSize / 0.1f));
//draw line
if (!isLineDrawn)
{
if (key.frame > frame)
{
isLineDrawn = true;
}
if (frame >= key.frame && frame <= key.endFrame)
{
if (keyNext == null || t == keyNext.GetTarget(itarget))
{
Gizmos.color = new Color(245f / 255f, 107f / 255f, 30f / 255f, 0.2f);
Gizmos.DrawLine(obj.transform.position, t.position);
}
isLineDrawn = true;
}
}
}
}
}
// draw arrow
Gizmos.color = new Color(245f / 255f, 107f / 255f, 30f / 255f, 1f);
Vector3 pos = obj.transform.position;
float size = (1.2f * (gizmo_size / 0.1f));
if (size < 0.1f)
{
size = 0.1f;
}
Vector3 direction = obj.forward * size;
float arrowHeadAngle = 20f;
float arrowHeadLength = 0.3f * size;
Gizmos.DrawRay(pos, direction);
Vector3 right = Quaternion.LookRotation(direction) * Quaternion.Euler(0, 180 + arrowHeadAngle, 0) * new Vector3(0, 0, 1);
Vector3 left = Quaternion.LookRotation(direction) * Quaternion.Euler(0, 180 - arrowHeadAngle, 0) * new Vector3(0, 0, 1);
Gizmos.DrawRay(pos + direction, right * arrowHeadLength);
Gizmos.DrawRay(pos + direction, left * arrowHeadLength);
}