/// <summary>
/// determine the frames at which maximum and minimum height of barbell occur, their max and min Y values, and those frames' associated skeletons
/// </summary>
public static TopBottomPoints DetermineTopandBottom(List<Skeleton> data)
{
Skeleton[] skeldata = data.ToArray();
TopBottomPoints topbottompoints = new TopBottomPoints(skeldata);
for (int i = 0; i < skeldata.Length; i++)
{
Skeleton skeleton = skeldata[i];
float leftwristY = skeleton.Joints[JointType.WristLeft].Position.Y;
float rightwristY = skeleton.Joints[JointType.WristRight].Position.Y;
float avewristdist = (leftwristY + rightwristY) / 2; //compute average Y-value for this frames left and right wrist positions
if (avewristdist > topbottompoints.TopY) //determine maximum wrist Y-value in all frames
{
topbottompoints.TopY = avewristdist;
topbottompoints.TopFrame = i;
}
if (avewristdist < topbottompoints.BottomY) //determine minimum wrist Y-value in all frames
{
topbottompoints.BottomY = avewristdist;
topbottompoints.BottomFrame = i;
}
}
topbottompoints.BottomSkeleton = skeldata[topbottompoints.BottomFrame];
topbottompoints.TopSkeleton = skeldata[topbottompoints.TopFrame];
return topbottompoints;
}
/// <summary>
/// determine if user was too fast or too slow on the uptake motion of exercise
/// </summary>
static public ExerciseError GetSpeedErrorUptake(TopBottomPoints topbottompoints)
{
ExerciseError SpeedUp = new ExerciseError("Try to speed up a bit when pulling the weight up towards you. If this is too difficult, try lowering the amount of weight you are using.");
ExerciseError SlowDown = new ExerciseError("Try to slow down a bit when pulling the weight up towards you."); //initialize ExerciseError with this problem's advice
int SlowFrameAmount = 40; //maximum allowed frame length for uptake of exercise
int FastFrameAmount = 20; //minimum allowed frame length for uptake exercise
int upframeamount = topbottompoints.TopFrame - topbottompoints.BottomFrame;
if (upframeamount < FastFrameAmount)
{
SpeedUp.WasError = true; //if user's uptake motion had less frames than allowed, they went too fast
return(SpeedUp);
}
else if (upframeamount > SlowFrameAmount)
{
SlowDown.WasError = true; //if user's uptake motion had more frames than allowed, they went too slow
return(SlowDown);
}
else
{
SpeedUp.WasError = false; //otherwise, user made no uptake speed error
return(SpeedUp);
}
}
/// <summary>
/// determine the frames at which maximum and minimum height of barbell occur, their max and min Y values, and those frames' associated skeletons
/// </summary>
static public TopBottomPoints DetermineTopandBottom(List <Skeleton> data)
{
Skeleton[] skeldata = data.ToArray();
TopBottomPoints topbottompoints = new TopBottomPoints(skeldata);
for (int i = 0; i < skeldata.Length; i++)
{
Skeleton skeleton = skeldata[i];
float leftwristY = skeleton.Joints[JointType.WristLeft].Position.Y;
float rightwristY = skeleton.Joints[JointType.WristRight].Position.Y;
float avewristdist = (leftwristY + rightwristY) / 2; //compute average Y-value for this frames left and right wrist positions
if (avewristdist > topbottompoints.TopY) //determine maximum wrist Y-value in all frames
{
topbottompoints.TopY = avewristdist;
topbottompoints.TopFrame = i;
}
if (avewristdist < topbottompoints.BottomY) //determine minimum wrist Y-value in all frames
{
topbottompoints.BottomY = avewristdist;
topbottompoints.BottomFrame = i;
}
}
topbottompoints.BottomSkeleton = skeldata[topbottompoints.BottomFrame];
topbottompoints.TopSkeleton = skeldata[topbottompoints.TopFrame];
return(topbottompoints);
}
/// <summary>
/// determine if user did not allow barbell to go low enough
/// </summary>
public static ExerciseError GetBottomError(TopBottomPoints topbottompoints)
{
ExerciseError ErrorBottom = new ExerciseError("Make sure you allow the bar to go all the way down to your starting position."); //initialize ExerciseError with this problem's advice
if (topbottompoints.BottomY > topbottompoints.TopSkeleton.Joints[JointType.HipCenter].Position.Y)
{
ErrorBottom.WasError = true; //if user didn't bring bar below hip, they made an error
}
return ErrorBottom;
}
/// <summary>
/// determine if user did not allow barbell to go low enough
/// </summary>
static public ExerciseError GetBottomError(TopBottomPoints topbottompoints)
{
ExerciseError ErrorBottom = new ExerciseError("Make sure you allow the bar to go all the way down to your starting position."); //initialize ExerciseError with this problem's advice
if (topbottompoints.BottomY > topbottompoints.TopSkeleton.Joints[JointType.HipCenter].Position.Y)
{
ErrorBottom.WasError = true; //if user didn't bring bar below hip, they made an error
}
return(ErrorBottom);
}
/// <summary>
/// determine if user did not bring barbell up high enough
/// </summary>
static public ExerciseError GetTopError(TopBottomPoints topbottompoints)
{
ExerciseError ErrorTop = new ExerciseError("Make sure you bring the bar all the way up."); //initialize ExerciseError with this problem's advice
if (topbottompoints.TopY < topbottompoints.TopSkeleton.Joints[JointType.ShoulderLeft].Position.Y)
{
ErrorTop.WasError = true; //if user didn't bring bar up to shoulder, they made an error
}
return(ErrorTop);
}
/// <summary>
/// determine if user was too fast or too slow on the downtake motion of exercise
/// </summary>
public static ExerciseError GetSpeedErrorDowntake(TopBottomPoints topbottompoints, int skellength)
{
ExerciseError SpeedUp = new ExerciseError("Try to speed up a bit when letting the weight back down"); //initialize ExerciseError with this problem's advice
ExerciseError SlowDown = new ExerciseError("Try to slow down a bit when letting the weight back down. If this is too difficult, try lowering the amount of weight you are using.");
int SlowFrameAmount = 40; //maximum allowed frame length for exercise
int FastFrameAmount = 20; //minimum allowed frame length for exercise
int downframeamount = skellength - topbottompoints.TopFrame;
if (downframeamount < FastFrameAmount)
{
SpeedUp.WasError = true; //if user's downtake motion had less frames than allowed, they went too fast
return SpeedUp;
}
else if (downframeamount > SlowFrameAmount)
{
SlowDown.WasError = true; //if user's downtake motion had more frames than allowed, they went too slow
return SlowDown;
}
else
{
SpeedUp.WasError = false; //otherwise, user made no downtake speed error
return SpeedUp;
}
}
/// <summary>
/// determine if user was too fast or too slow on the downtake motion of exercise
/// </summary>
static public ExerciseError GetSpeedErrorDowntake(TopBottomPoints topbottompoints, int skellength)
{
ExerciseError SpeedUp = new ExerciseError("Try to speed up a bit when letting the weight back down"); //initialize ExerciseError with this problem's advice
ExerciseError SlowDown = new ExerciseError("Try to slow down a bit when letting the weight back down. If this is too difficult, try lowering the amount of weight you are using.");
int SlowFrameAmount = 40; //maximum allowed frame length for exercise
int FastFrameAmount = 20; //minimum allowed frame length for exercise
int downframeamount = skellength - topbottompoints.TopFrame;
if (downframeamount < FastFrameAmount)
{
SpeedUp.WasError = true; //if user's downtake motion had less frames than allowed, they went too fast
return(SpeedUp);
}
else if (downframeamount > SlowFrameAmount)
{
SlowDown.WasError = true; //if user's downtake motion had more frames than allowed, they went too slow
return(SlowDown);
}
else
{
SpeedUp.WasError = false; //otherwise, user made no downtake speed error
return(SpeedUp);
}
}
/// <summary>
/// determine if user did not bring barbell up high enough
/// </summary>
public static ExerciseError GetTopError(TopBottomPoints topbottompoints)
{
ExerciseError ErrorTop = new ExerciseError("Make sure you bring the bar all the way up."); //initialize ExerciseError with this problem's advice
if (topbottompoints.TopY < topbottompoints.TopSkeleton.Joints[JointType.ShoulderLeft].Position.Y)
{
ErrorTop.WasError = true; //if user didn't bring bar up to shoulder, they made an error
}
return ErrorTop;
}
/// <summary>
/// determine if user was too fast or too slow on the uptake motion of exercise
/// </summary>
public static ExerciseError GetSpeedErrorUptake(TopBottomPoints topbottompoints)
{
ExerciseError SpeedUp = new ExerciseError("Try to speed up a bit when pulling the weight up towards you. If this is too difficult, try lowering the amount of weight you are using.");
ExerciseError SlowDown = new ExerciseError("Try to slow down a bit when pulling the weight up towards you."); //initialize ExerciseError with this problem's advice
int SlowFrameAmount = 40; //maximum allowed frame length for uptake of exercise
int FastFrameAmount = 20; //minimum allowed frame length for uptake exercise
int upframeamount = topbottompoints.TopFrame - topbottompoints.BottomFrame;
if (upframeamount < FastFrameAmount)
{
SpeedUp.WasError = true; //if user's uptake motion had less frames than allowed, they went too fast
return SpeedUp;
}
else if (upframeamount > SlowFrameAmount)
{
SlowDown.WasError = true; //if user's uptake motion had more frames than allowed, they went too slow
return SlowDown;
}
else
{
SpeedUp.WasError = false; //otherwise, user made no uptake speed error
return SpeedUp;
}
}
