/// <summary>
/// Handles a particular touch by the user
/// </summary>
/// <param name='touch'>The position and type of gesture/touch made</param>
/// <param name='touchPosition'>Touch position.</param>
protected override void HandleTouch(ITouchPoint touchPosition)
{
var gaugeTouchPoint = touchPosition;
if (this.boundsMiddleImage.Contains(touchPosition.Position))
{
// if the user starts to press the gauge but slightly misses it (as it is quite small) and hence
// their Y is just above/below the gauge then we alter the Y position to ensure that the touch
// will get picked up on
gaugeTouchPoint = new TouchPoint(
new Vector2(touchPosition.Position.X, this.gaugeBounds.Y),
touchPosition.TouchType);
}
else if (this.boundsLeftImage.Contains(touchPosition.Position))
{
// if the user presses the 'slow icon' to the left of the gauge then treat this as pressing the
// far left of the gauge - i.e. the slowest speed
gaugeTouchPoint = new TouchPoint(
new Vector2(this.boundsMiddleImage.X, this.gaugeBounds.Y),
touchPosition.TouchType);
}
else if (this.boundsRightImage.Contains(touchPosition.Position))
{
// if the user presses the 'fast icon' to the right of the gauge then treat this as pressing the
// far right of the gauge - i.e. the fastest speed
gaugeTouchPoint = new TouchPoint(
new Vector2(this.boundsMiddleImage.X + this.boundsMiddleImage.Width - 1, this.gaugeBounds.Y),
touchPosition.TouchType);
}
this.gauge.CheckTouchCollision(gaugeTouchPoint);
}
/// <summary>
/// Handles any user input.
/// Collect all gestures made since the last 'update' - check if these need to be handled
/// </summary>
private void HandleInput()
{
while (TouchPanel.IsGestureAvailable)
{
// read the next gesture from the queue
GestureSample gesture = TouchPanel.ReadGesture();
TouchType touchType = this.ConvertGestureType(gesture.GestureType);
TouchPoint touchPoint = new TouchPoint(gesture.Position, touchType);
this.CheckToolboxCollision(touchPoint);
}
}
/// <summary>
/// Checks whether the user has touched inside the toolbox
/// </summary>
/// <returns>
/// true if the touch is within the toolbox, false if not
/// </returns>
/// <param name='touchPoint' Where the user touched the screen />
protected bool CheckToolboxCollision(ITouchPoint touchPoint)
{
bool touchInToolbox = false;
ITouchPoint offsetCollisionPoint = touchPoint;
if (this.ToolBox.DockPosition == DockPosition.Bottom)
{
int toolboxPositionY = (this.ImageStateData.Height - this.ToolBox.ToolboxHeight);
Vector2 offsetPosition = new Vector2(touchPoint.Position.X, touchPoint.Position.Y - toolboxPositionY);
offsetCollisionPoint = new TouchPoint(offsetPosition, touchPoint.TouchType);
if (touchPoint.Position.Y >= toolboxPositionY)
{
touchInToolbox = true;
}
}
else
{
if (touchPoint.Position.Y <= this.ToolBox.ToolboxHeight)
{
touchInToolbox = true;
}
}
if (touchInToolbox == false)
{
return false;
}
this.ToolBox.CheckTouchCollision(offsetCollisionPoint);
return true;
}
