void wyVirtualJoystick::adjustRockerPosition(float x, float y) {
// to node space
wyPoint p = wyp(x, y);
p = worldToNodeSpace(p);
wyPoint center = wyp(m_width / 2, m_height / 2);
// check position, if in rocker radius, just set it
// if not, connect position to center and pick the intersect point
float distance = wypDistance(p, center);
if(distance > m_rockerRangeRadius) {
float ratio = m_rockerRangeRadius / distance;
float rX = p.x - m_width / 2;
float rY = p.y - m_height / 2;
p.x = m_width / 2 + rX * ratio;
p.y = m_height / 2 + rY * ratio;
}
// save position
m_rockerX = p.x;
m_rockerY = p.y;
// set rocker position
if(m_rocker) {
m_rocker->setPosition(p.x, p.y);
}
// change degree
m_degree = wypToDegree(wypSub(p, center));
if(m_degree < 0)
m_degree += 360;
}
bool wySlider::touchesCancelled(wyMotionEvent& e) {
if(m_dragging) {
m_dragging = false;
setValueFromLocation(worldToNodeSpace(wyp(e.x[0], e.y[0])));
}
return true;
}
bool wySlider::touchesBegan(wyMotionEvent& e) {
// thumb clicked?
if(m_thumb) {
m_dragging = m_thumb->hitTest(e.x[0], e.y[0]);
}
// if not dragging, means it clicks other parts
if(!m_dragging) {
setValueFromLocation(worldToNodeSpace(wyp(e.x[0], e.y[0])));
}
return true;
}
wyPoint wyNode::worldToNodeSpaceAR(wyPoint p) {
p = worldToNodeSpace(p);
return wypSub(p, wyp(m_anchorPointX, m_anchorPointY));
}
