int Area::addToSegment(Segment & s) const
{
if (!checkIntersects(s)) {
return -1;
}
return s.addArea(this);
}
void Area::updateToSegment(Segment & s) const
{
if (!checkIntersects(s)) {
s.removeArea(this);
return;
}
if (s.updateArea(this) != 0) {
s.addArea(this);
}
}
WFMath::Polygon<2> Area::clipToSegment(const Segment& s) const
{
// box reject
if (!checkIntersects(s)) return WFMath::Polygon<2>();
WFMath::AxisBox<2> segBox(s.getRect());
WFMath::Polygon<2> clipped = sutherlandHodgmanKernel(m_shape, TopClip(segBox.lowCorner().y()));
clipped = sutherlandHodgmanKernel(clipped, BottomClip(segBox.highCorner().y()));
clipped = sutherlandHodgmanKernel(clipped, LeftClip(segBox.lowCorner().x()));
clipped = sutherlandHodgmanKernel(clipped, RightClip(segBox.highCorner().x()));
return clipped;
}
Area::ring Area::clipToSegment(Segment const & s) const
{
// box reject
if (!checkIntersects(s))
{
return Area::ring();
}
boost::geometry::model::box<point> seg_box = s.getRect();
std::vector<ring> clipped;
boost::geometry::intersection(m_shape, seg_box, clipped);
assert(clipped.size() > 0);
return clipped[0];
}
void GameProcess::Update() {
//cout << "Timer" << endl;
restartSnake();
pastX = snake[num - 1].x;
pastY = snake[num - 1].y;
for (int i = num; i > 0; --i) {
snake[i].x = snake[i - 1].x;
snake[i].y = snake[i - 1].y;
}
if (dir == 0)
snake[0].y += 1;
if (dir == 1)
snake[0].x += 1;
if (dir == 2)
snake[0].y -= 1;
if (dir == 3)
snake[0].x -= 1;
if (snake[0].x > N - 1)
snake[0].x = 0;
if (snake[0].x < 0)
snake[0].x = N - 1;
if (snake[0].y > M - 1)
snake[0].y = 0;
if (snake[0].y < 0)
snake[0].y = M - 1;
checkIntersects();
//changeCamera();
cout << "Camera x: " << camera->getPosition().x << " "
<< camera->getPosition().y << " " << camera->getPosition().z
<< endl;
changeCamera();
//cout << "EAT " << eat.x << " " << eat.y << endl;
}
void Area::removeFromSegment(Segment & s) const
{
if (checkIntersects(s)) {
s.removeArea(this);
}
}
