private void touchHandle(EventX e)
{
Vector2X p = (Vector2X)e.data;
float stageX = p.x;
float stageY = p.y;
switch (e.type)
{
case MouseEventX.MOUSE_DOWN:
mx = mx0 = stageX;
my = my0 = stageY;
_stage = stage;
_stage.addEventListener(MouseEventX.MOUSE_MOVE, touchMoveHandle);
_stage.addEventListener(MouseEventX.MOUSE_UP, touchHandle);
break;
case MouseEventX.MOUSE_UP:
_stage.removeEventListener(MouseEventX.MOUSE_MOVE, touchMoveHandle);
_stage.removeEventListener(MouseEventX.MOUSE_UP, touchHandle);
if (_isDragging)
{
touchEnd(stageX - mx, stageY - my, stageX - mx0, stageY - my0);
if (hasEventListener(TouchEventX.TOUCH_END))
{
this.dispatchEvent(new TouchEventX(TouchEventX.TOUCH_END, stageX - mx, stageY - my, stageX - mx0, stageY - my0));
}
_isDragging = false;
CallLater.Add(touchEndHandle);
}
break;
}
}
private void touchMoveHandle(EventX e)
{
Vector2X p = (Vector2X)e.data;
float stageX = p.x;
float stageY = p.y;
float dx = stageX - mx0;
float dy = stageY - my0;
if (!_isDragging)
{
if (Math.Abs(dx) < draggingDistanceX || Math.Abs(dy) < draggingDistanceY || (dx * dx + dy * dy) < MIN_DISTANCE_SQ)
{
return;
}
_isDragging = true;
_draggingTarget = this;
CallLater.Remove(touchEndHandle);
touchStart(dx, dy);//这里面可能会有需求再变为不可拖;
if (hasEventListener(TouchEventX.TOUCH_START))
{
this.dispatchEvent(new TouchEventX(TouchEventX.TOUCH_START, 0, 0, dx, dy));
}
}
touchMoving(stageX - mx, stageY - my, dx, dy);
if (hasEventListener(TouchEventX.TOUCH_START))
{
this.dispatchEvent(new TouchEventX(TouchEventX.TOUCH_START, stageX - mx, stageY - my, dx, dy));
}
mx = stageX;
my = stageY;
}