private void Trigger(InteractionDirection interactionDirection, InstructionCaller instruction, MovementDirection direction)
{
if (Direction.Contains(interactionDirection, direction))
{
Trigger(instruction);
}
}
public static bool Contains(InteractionDirection interactionDirection, MovementDirection movementDirection)
{
// If the movement direction that is sent in is None it means that the interaction is on the current tile, not the one the player is facing
var direction = ToInteractionDirection(movementDirection);
return((interactionDirection == InteractionDirection.Any && direction != InteractionDirection.This) ||
(interactionDirection == InteractionDirection.This && direction == InteractionDirection.This) ||
(((int)direction & (int)interactionDirection) > 0));
}
private bool checkAngle(KinectDataPoint p1, KinectDataPoint p2, InteractionDirection direction, int bodyAngle)
{
int horizontalAngle = p1.CalcHorizontalAngle(p2);
int depthAngle = p1.CalcDepthAngle(p2);
bool result = checkUpDown(p1, p2, depthAngle, horizontalAngle, direction) ||
checkLeftRight(p1, p2, depthAngle, horizontalAngle, bodyAngle, direction);
return result;
}
private bool checkLeftRight(KinectDataPoint p1, KinectDataPoint p2, int depthAngle,
int horizontalAngle, int bodyAngle, InteractionDirection direction)
{
if (direction == InteractionDirection.TO_LEFT || direction == InteractionDirection.TO_RIGHT)
{
if (Math.Abs(bodyAngle - depthAngle) < IConsts.GSwipeDepthAngle)
{
bool directionOk;
if (direction == InteractionDirection.TO_LEFT)
{
directionOk = (p1.ScreenX > p2.ScreenX);
}
else
{
directionOk = (p1.ScreenX < p2.ScreenX);
}
return (horizontalAngle < IConsts.GSwipeHorizontalAngle) && directionOk;
}
}
return false;
}
private bool checkSwipeGesture(int bodyAngle, List<KinectDataPoint> queue, InteractionDirection direction)
{
for (int i = 0; i < queue.Count; ++i)
{
if (checkSwipeGesture(bodyAngle, queue, i, direction))
{
return true;
}
}
return false;
}
private bool checkUpDown(KinectDataPoint p1, KinectDataPoint p2, int depthAngle,
int horizontalAngle, InteractionDirection direction)
{
if (direction == InteractionDirection.UP || direction == InteractionDirection.DOWN)
{
if (depthAngle < IConsts.GSwipeDepthAngle)
{
bool directionOk;
if (direction == InteractionDirection.UP)
{
directionOk = (p1.ScreenY > p2.ScreenY);
}
else
{
directionOk = (p1.ScreenY < p2.ScreenY);
}
return ((90 - horizontalAngle) < IConsts.GSwipeHorizontalAngle) && directionOk;
}
}
return false;
}
private bool checkSwipeGesture(int bodyAngle, List<KinectDataPoint> queue, int stepSize, InteractionDirection direction)
{
int minPoints = stepSize + 1;
for (int i = 0; i < queue.Count - minPoints; ++i)
{
KinectDataPoint p1 = queue.ElementAt(i);
KinectDataPoint p2 = queue.ElementAt(i + stepSize);
if (p1.TimeStamp.AddMilliseconds(maxSwipeTime) < p2.TimeStamp)
{
break;
}
double length = p1.CalcDistance3D(p2);
if (length >= IConsts.GSwipeMinLength)
{
if (checkAngle(p1, p2, direction, bodyAngle))
{
KinectDataPoint pMiddle = queue.ElementAt(i + (stepSize / 2));
if (checkAngle(p1, pMiddle, direction, bodyAngle))
{
return true;
}
}
}
}
return false;
}
