/// <summary>
/// check whether the participant is ready for tutoring
/// </summary>
/// <returns></returns>
internal static bool check_for_tutoring(Display form)
{
if (!played_check_for_tutoring)
{
form.play_audio(Properties.Resources.check_for_tutoring);
played_check_for_tutoring = true;
}
form.Text_box_status = "Stand straight with your head and back up, arms at two sides, and legs straight";
head_okay = false;
back_okay = false;
left_arm_okay = false;
right_arm_okay = false;
left_leg_okay = false;
right_leg_okay = false;
left_foot_okay = false;
right_foot_okay = false;
if (head_okay && back_okay && left_arm_okay && right_arm_okay && left_leg_okay && right_leg_okay && left_foot_okay && right_foot_okay)
{
return(true);
}
// check for head
float headX = MSKinect.head.X - MSKinect.neck.X, headZ;
if (headX > 0.03)
{
form.Head_status = "Tilt your head toward your left";
}
else if (headX < -0.03)
{
form.Head_status = "Tilt your head toward your right";
}
else
{
headZ = MSKinect.head.Z - MSKinect.neck.Z;
if (headZ > 0.05)
{
form.Head_status = "Tilt your head forward";
}
else if (headZ < 0)
{
form.Head_status = "Tilt your head backward";
}
else
{
head_okay = true;
form.Head_status = "Okay";
}
}
// check for back
float backX = MSKinect.shoulder_center.X - MSKinect.hip_center.X, backZ;
if (backX > 0.05)
{
form.Back_status = "Lean sideways toward your left";
}
else if (backX < -0.05)
{
form.Back_status = "Lean sideways toward your right";
}
else
{
backZ = MSKinect.shoulder_center.Z - MSKinect.hip_center.Z;
if (backZ > 0.15)
{
form.Back_status = "Lean forward";
}
else if (backZ < -0.04)
{
form.Back_status = "Lean backward";
}
else
{
back_okay = true;
form.Back_status = "Okay";
}
}
double[] eblow_left_to_shoulder_left = MathCalculation.turn_campts_to_vector(MSKinect.elbow_left, MSKinect.shoulder_left);
double[] eblow_left_to_wrist_left = MathCalculation.turn_campts_to_vector(MSKinect.elbow_left, MSKinect.wrist_left);
//form.Left_arm_status = Convert.ToInt32(MathCalculation.angle_between_two_vectors(eblow_left_to_wrist_left, eblow_left_to_shoulder_left));
double[] eblow_right_to_wrist_right = MathCalculation.turn_campts_to_vector(MSKinect.elbow_right, MSKinect.wrist_right);
double[] eblow_right_to_shoulder_right = MathCalculation.turn_campts_to_vector(MSKinect.elbow_right, MSKinect.shoulder_right);
// check for left arm
if (MathCalculation.angle_between_two_vectors(eblow_left_to_wrist_left, eblow_left_to_shoulder_left) >= 153)
{
if (MSKinect.hip_left.X - MSKinect.wrist_left.X <= 0.20)
{
left_arm_okay = true;
form.Left_arm_status = "Okay";
}
else if (MSKinect.hip_left.X - MSKinect.wrist_left.X > 0.20)
{
form.Left_arm_status = "Lower your left arm down and keep it straight";
}
else if (MSKinect.hip_left.X - MSKinect.wrist_left.X < 0)
{
form.Left_arm_status = "Keep your left arm at the left side body";
}
}
else
{
form.Left_arm_status = "Straighten your left arm";
}
// check for right arm
if (MathCalculation.angle_between_two_vectors(eblow_right_to_wrist_right, eblow_right_to_shoulder_right) >= 153)
{
if (MSKinect.wrist_right.X - MSKinect.hip_right.X <= 0.20)
{
right_arm_okay = true;
form.Right_arm_status = "Okay";
}
else if (MSKinect.wrist_right.X - MSKinect.hip_right.X > 0.17)
{
form.Right_arm_status = "Lower your right arm down and keep it straight";
}
else if (MSKinect.wrist_right.X - MSKinect.hip_right.X < 0)
{
form.Right_arm_status = "Keep your right arm at the right side body";
}
}
else
{
form.Right_arm_status = "Straighten your right arm";
}
double[] knee_left_to_hip_left = MathCalculation.turn_campts_to_vector(MSKinect.knee_left, MSKinect.hip_left);
double[] knee_left_to_foot_left = MathCalculation.turn_campts_to_vector(MSKinect.knee_left, MSKinect.foot_left);
double[] knee_right_to_hip_right = MathCalculation.turn_campts_to_vector(MSKinect.knee_right, MSKinect.hip_right);
double[] knee_right_to_foot_right = MathCalculation.turn_campts_to_vector(MSKinect.knee_right, MSKinect.foot_right);
//form.Left_leg_status = Convert.ToInt32(MathCalculation.angle_between_two_vectors(knee_left_to_hip_left, knee_left_to_foot_left));
// check for left leg
if (MathCalculation.angle_between_two_vectors(knee_left_to_hip_left, knee_left_to_foot_left) >= 165)
{
left_leg_okay = true;
form.Left_leg_status = "Okay";
}
else
{
form.Left_leg_status = "Straighten your left leg";
}
// check for right leg
if (MathCalculation.angle_between_two_vectors(knee_right_to_hip_right, knee_right_to_foot_right) >= 165)
{
right_leg_okay = true;
form.Right_leg_status = "Okay";
}
else
{
form.Right_leg_status = "Straighten your right leg";
}
// check for left foot
if (MSKinect.foot_left.X >= MSKinect.shoulder_left.X)
{
left_foot_okay = true;
form.Left_foot_status = "Okay";
}
else
{
form.Left_foot_status = "Move your left foot rightward";
}
// check for right foot
if (MSKinect.foot_right.X <= MSKinect.shoulder_right.X)
{
right_foot_okay = true;
form.Right_foot_status = "Okay";
}
else
{
form.Right_foot_status = "Move your right foot leftward";
}
return(head_okay && back_okay && left_arm_okay && right_arm_okay && left_leg_okay && right_leg_okay && left_foot_okay && right_foot_okay);
}
internal static bool fourth_quarter_tutoring(Display form)
{
head_okay = false;
back_okay = false;
left_arm_okay = false;
right_arm_okay = false;
left_leg_okay = false;
right_leg_okay = false;
left_foot_okay = false;
right_foot_okay = false;
// check for head
float headX = MSKinect.head.X - MSKinect.neck.X, headZ;
if (headX > 0.05)
{
form.Head_status = "Tilt your head toward your left";
}
else if (headX < -0.05)
{
form.Head_status = "Tilt your head toward your right";
}
else
{
headZ = MSKinect.head.Z - MSKinect.neck.Z;
if (headZ > 0.07)
{
form.Head_status = "Tilt your head forward";
}
else if (headZ < -0.2)
{
form.Head_status = "Tilt your head backward";
}
else
{
head_okay = true;
form.Head_status = "Okay";
}
}
// check for back
float backX = MSKinect.shoulder_center.X - MSKinect.hip_center.X, backZ;
if (backX > 0.05)
{
form.Back_status = "Lean sideways toward your left";
}
else if (backX < -0.05)
{
form.Back_status = "Lean sideways toward your right";
}
else
{
backZ = MSKinect.shoulder_center.Z - MSKinect.hip_center.Z;
if (backZ > 0.15)
{
form.Back_status = "Lean forward";
}
else if (backZ < -0.04)
{
form.Back_status = "Lean backward";
}
else
{
back_okay = true;
form.Back_status = "Okay";
}
}
double[] knee_left_to_hip_left = MathCalculation.turn_campts_to_vector(MSKinect.knee_left, MSKinect.hip_left);
double[] knee_left_to_foot_left = MathCalculation.turn_campts_to_vector(MSKinect.knee_left, MSKinect.foot_left);
// check for left leg
if (MathCalculation.angle_between_two_vectors(knee_left_to_hip_left, knee_left_to_foot_left) >= 160)
{
left_leg_okay = true;
form.Left_leg_status = "Okay";
}
else
{
form.Left_leg_status = "Straighten your left leg";
}
// check for left foot
if (MSKinect.foot_left.X >= MSKinect.shoulder_left.X)
{
left_foot_okay = true;
form.Left_foot_status = "Okay";
}
else
{
form.Left_foot_status = "Move your left foot rightward";
}
// check for left arm
double[] eblow_left_to_wrist_left = MathCalculation.turn_campts_to_vector(MSKinect.elbow_left, MSKinect.wrist_left);
double[] eblow_left_to_shoulder_left = MathCalculation.turn_campts_to_vector(MSKinect.elbow_left, MSKinect.shoulder_left);
//form.Right_arm_status = "" + Convert.ToInt32(MathCalculation.angle_between_two_vectors(eblow_right_to_wrist_right, eblow_right_to_shoulder_right));
//form.Right_arm_status = "" + (MSKinect.elbow_right.X - MSKinect.shoulder_right.X);
if (MathCalculation.angle_between_two_vectors(eblow_left_to_wrist_left, eblow_left_to_shoulder_left) <= 90.0)
{
if (MSKinect.elbow_left.X - MSKinect.shoulder_left.X >= 0)
{
form.Left_arm_status = "Keep your left eblow at the left side body";
}
else if (MSKinect.elbow_left.X - MSKinect.shoulder_left.X < -0.20)
{
form.Left_arm_status = "Lower your left elbow down";
}
else if (MSKinect.elbow_left.X - MSKinect.shoulder_left.X < 0)
{
if (MSKinect.wrist_left.X - MSKinect.elbow_left.X < 0)
{
form.Left_arm_status = "Move your left wrist to your right";
}
else if (MSKinect.shoulder_center.X - MSKinect.wrist_left.X < 0)
{
form.Left_arm_status = "Move your left wrist to your left";
}
else
{
form.Left_arm_status = "Okay";
left_arm_okay = true;
}
}
}
else
{
form.Left_arm_status = "Curl your left arm more";
}
double[] knee_right_to_hip_right = MathCalculation.turn_campts_to_vector(MSKinect.knee_right, MSKinect.hip_right);
double[] knee_right_to_foot_right = MathCalculation.turn_campts_to_vector(MSKinect.knee_right, MSKinect.foot_right);
if (MSKinect.knee_right.Y - MSKinect.hip_center.Y <= -0.06)
{
form.Right_leg_status = "Raise your right knee higher";
}
else
{
if (MathCalculation.angle_between_two_vectors(knee_right_to_hip_right, knee_right_to_foot_right) > 120)
{
form.Right_leg_status = "Bend your lower leg more";
}
else
{
form.Right_leg_status = "Okay";
right_leg_okay = true;
}
}
double[] eblow_right_to_shoulder_right = MathCalculation.turn_campts_to_vector(MSKinect.elbow_right, MSKinect.shoulder_right);
double[] eblow_right_to_wrist_right = MathCalculation.turn_campts_to_vector(MSKinect.elbow_right, MSKinect.wrist_right);
if (MathCalculation.angle_between_two_vectors(eblow_right_to_shoulder_right, eblow_right_to_wrist_right) > 153)
{
form.Right_arm_status = "bend your right arm backward more";
}
else
{
if (MSKinect.shoulder_right.X - MSKinect.elbow_right.X >= 0)
{
form.Right_arm_status = "Keep your right eblow at the right side body";
}
else if (MSKinect.shoulder_right.X - MSKinect.elbow_right.X < -0.20)
{
form.Right_arm_status = "Lower your right elbow down";
}
else
{
form.Right_arm_status = "Okay";
right_arm_okay = true;
}
}
if (!(left_arm_okay && right_leg_okay && right_arm_okay))
{
return(false);
}
finished_fourth_quarter = true;
return(true);
}
/// <summary>
/// second half of the tutoring(similar to the first one)
/// </summary>
/// <param name="form"></param>
internal static void second_quarter_tutoring(Display form)
{
form.Text_box_status = "First, curl your left arm up with your wrist at the chest level";
if (!played_curl_left_arm)
{
form.play_audio(Properties.Resources.curl_left_arm);
played_curl_left_arm = true;
}
head_okay = false;
back_okay = false;
left_arm_okay = false;
right_arm_okay = false;
left_leg_okay = false;
right_leg_okay = false;
left_foot_okay = false;
right_foot_okay = false;
form.Left_arm_status = "";
form.Right_leg_status = "";
form.Right_arm_status = "";
// check for head
float headX = MSKinect.head.X - MSKinect.neck.X, headZ;
if (headX > 0.03)
{
form.Head_status = "Tilt your head toward your left";
}
else if (headX < -0.03)
{
form.Head_status = "Tilt your head toward your right";
}
else
{
headZ = MSKinect.head.Z - MSKinect.neck.Z;
if (headZ > 0.05)
{
form.Head_status = "Tilt your head forward";
}
else if (headZ < 0)
{
form.Head_status = "Tilt your head backward";
}
else
{
head_okay = true;
form.Head_status = "Okay";
}
}
// check for back
float backX = MSKinect.shoulder_center.X - MSKinect.hip_center.X, backZ;
if (backX > 0.05)
{
form.Back_status = "Lean sideways toward your left";
}
else if (backX < -0.05)
{
form.Back_status = "Lean sideways toward your right";
}
else
{
backZ = MSKinect.shoulder_center.Z - MSKinect.hip_center.Z;
if (backZ > 0.15)
{
form.Back_status = "Lean forward";
}
else if (backZ < -0.04)
{
form.Back_status = "Lean backward";
}
else
{
back_okay = true;
form.Back_status = "Okay";
}
}
double[] knee_left_to_hip_left = MathCalculation.turn_campts_to_vector(MSKinect.knee_left, MSKinect.hip_left);
double[] knee_left_to_foot_left = MathCalculation.turn_campts_to_vector(MSKinect.knee_left, MSKinect.foot_left);
// check for left leg
if (MathCalculation.angle_between_two_vectors(knee_left_to_hip_left, knee_left_to_foot_left) >= 163)
{
left_leg_okay = true;
form.Left_leg_status = "Okay";
}
else
{
form.Left_leg_status = "Straighten your left leg";
}
// check for left foot
if (MSKinect.foot_left.X >= MSKinect.shoulder_left.X)
{
left_foot_okay = true;
form.Left_foot_status = "Okay";
}
else
{
form.Left_foot_status = "Move your left foot rightward";
}
// check for left arm
double[] eblow_left_to_wrist_left = MathCalculation.turn_campts_to_vector(MSKinect.elbow_left, MSKinect.wrist_left);
double[] eblow_left_to_shoulder_left = MathCalculation.turn_campts_to_vector(MSKinect.elbow_left, MSKinect.shoulder_left);
//form.Right_arm_status = "" + Convert.ToInt32(MathCalculation.angle_between_two_vectors(eblow_right_to_wrist_right, eblow_right_to_shoulder_right));
//form.Right_arm_status = "" + (MSKinect.elbow_right.X - MSKinect.shoulder_right.X);
if (MathCalculation.angle_between_two_vectors(eblow_left_to_wrist_left, eblow_left_to_shoulder_left) <= 90.0)
{
if (MSKinect.elbow_left.X - MSKinect.shoulder_left.X >= 0)
{
form.Left_arm_status = "Keep your left eblow at the left side body";
}
else if (MSKinect.elbow_left.X - MSKinect.shoulder_left.X < -0.15)
{
form.Left_arm_status = "Lower your left elbow down";
}
else if (MSKinect.elbow_left.X - MSKinect.shoulder_left.X < 0)
{
if (MSKinect.wrist_left.X - MSKinect.elbow_left.X < 0)
{
form.Left_arm_status = "Move your left wrist to your right";
}
else if (MSKinect.shoulder_center.X - MSKinect.wrist_left.X < 0)
{
form.Left_arm_status = "Move your left wrist to your left";
}
else
{
form.Left_arm_status = "Okay";
left_arm_okay = true;
}
}
}
else
{
form.Left_arm_status = "Curl your left arm more";
}
if (!left_arm_okay)
{
return;
}
form.Text_box_status = "Next, raise your right knee up to reach at least waist height and make sure the tip of your toe is pointing downward";
if (!played_raise_right_knee_up)
{
form.play_audio(Properties.Resources.raise_right_knee_up);
played_raise_right_knee_up = true;
}
double[] knee_right_to_hip_right = MathCalculation.turn_campts_to_vector(MSKinect.knee_right, MSKinect.hip_right);
double[] knee_right_to_foot_right = MathCalculation.turn_campts_to_vector(MSKinect.knee_right, MSKinect.foot_right);
if (MSKinect.knee_right.Y - MSKinect.hip_center.Y <= -0.04)
{
form.Right_leg_status = "Raise your right knee higher";
}
else
{
if (MathCalculation.angle_between_two_vectors(knee_right_to_hip_right, knee_right_to_foot_right) > 90)
{
form.Right_leg_status = "Bend your lower leg more";
}
else
{
form.Right_leg_status = "Okay";
right_leg_okay = true;
}
}
if (!right_leg_okay)
{
return;
}
form.Text_box_status = "Also, slightly bend your right arm backward";
if (!played_bend_right_arm_backward)
{
form.play_audio(Properties.Resources.bend_right_arm_backward);
played_bend_right_arm_backward = true;
}
double[] eblow_right_to_shoulder_right = MathCalculation.turn_campts_to_vector(MSKinect.elbow_right, MSKinect.shoulder_right);
double[] eblow_right_to_wrist_right = MathCalculation.turn_campts_to_vector(MSKinect.elbow_right, MSKinect.wrist_right);
if (MathCalculation.angle_between_two_vectors(eblow_right_to_shoulder_right, eblow_right_to_wrist_right) > 145)
{
form.Right_arm_status = "bend your right arm backward more";
}
else
{
if (MSKinect.shoulder_right.X - MSKinect.elbow_right.X >= 0)
{
form.Right_arm_status = "Keep your right eblow at the right side body";
}
else if (MSKinect.shoulder_right.X - MSKinect.elbow_right.X < -0.15)
{
form.Right_arm_status = "Lower your right elbow down";
}
else
{
form.Right_arm_status = "Okay";
right_arm_okay = true;
}
}
if (!right_arm_okay)
{
return;
}
System.Media.SystemSounds.Beep.Play();
finished_second_quarter = true;
ready_for_tutoring = false;
played_check_for_tutoring = false;
}