const Vector2D Coordinates::GetParallaxDisplacedPosition(const Vector2D position, float displacement_factor) {
sf::View& view = GameApp::get_mutable_instance().GetView();
Coordinates tmp;
tmp.SetWorldPixel(Vector2D(view.GetCenter().x, view.GetCenter().y));
Vector2D viewcenter_worldfloat = tmp.GetWorldFloat();
Vector2D diff = position - viewcenter_worldfloat;
return viewcenter_worldfloat + diff * displacement_factor;
}
void World::Update(const float time_delta) {
mCurrentLevelTime += time_delta;
// INPUT!
const sf::Input& in = GameApp::get_mutable_instance().GetInput();
sf::View& view = GameApp::get_mutable_instance().GetView();
if(GameApp::get_mutable_instance().IsEditorMode()) {
float px = 10;
if(in.IsKeyDown(sf::Key::LShift) || in.IsKeyDown(sf::Key::RShift)) {
px *= 5;
}
if(in.IsKeyDown(sf::Key::Up)) {
view.SetCenter(view.GetCenter().x, view.GetCenter().y - px);
}
if(in.IsKeyDown(sf::Key::Down)) {
view.SetCenter(view.GetCenter().x, view.GetCenter().y + px);
}
if(in.IsKeyDown(sf::Key::Left)) {
view.SetCenter(view.GetCenter().x - px, view.GetCenter().y);
}
if(in.IsKeyDown(sf::Key::Right)) {
view.SetCenter(view.GetCenter().x + px, view.GetCenter().y);
}
Coordinates mp;
mp.SetScreenPixel(GameApp::get_mutable_instance().GetMousePosition());
if(mEditorMouseAction == EMA_GRAB) {
mEditorMouseActionEntity->SetPosition( mEditorMouseActionStartEntityPosition.GetWorldFloat() +
mp.GetWorldFloat() -
mEditorMouseActionStartMousePosition.GetWorldFloat() );
} else if(mEditorMouseAction == EMA_ALPHA) {
float mpf = mp.GetScreenFloat().y;
float mspf = mEditorMouseActionStartMousePosition.GetScreenFloat().y;
float d = (mspf - mpf) * 5.f;
float a = mEditorMouseActionStartEntityAlpha + d;
if (a > 1) a = 1;
if (a < 0) a = 0;
mEditorMouseActionEntity->SetAlpha( a );
} else if(mEditorMouseAction == EMA_SCALE) {
Vector2D md = mEditorMouseActionStartEntityPosition.GetScreenPixel() - mp.GetScreenPixel();
Vector2D sd = mEditorMouseActionStartEntityPosition.GetScreenPixel() - mEditorMouseActionStartMousePosition.GetScreenPixel();
float f = md.Magnitude() / sd.Magnitude();
mEditorMouseActionEntity->SetScale( mEditorMouseActionStartEntityScale * f );
} else if(mEditorMouseAction == EMA_ROTATE) {
Coordinates ep;
ep.SetWorldFloat(mEditorMouseActionEntity->GetPosition());
mEditorMouseActionEntity->SetRotation(
(mEditorMouseActionStartMousePosition.GetWorldFloat()-ep.GetWorldFloat()).Rotation()
-(mp.GetWorldFloat()-ep.GetWorldFloat()).Rotation()
+ mEditorMouseActionStartEntityRotation );
}
} else if(GameApp::get_mutable_instance().GetAppMode() == AM_PUZZLE) {
// draw point on closest rail
Rail* r = GetClosestRail();
if(r != NULL) {
Coordinates tmp;
tmp.SetScreenPixel(GameApp::get_mutable_instance().GetMousePosition());
float d = r->ClosestPositionOnLine(tmp.GetWorldFloat());
mClosestRailPoint = r->GetPointFromFloat(d);
}
mClosestRail = r;
}
if(GetBoxEntity() != NULL && GetBoxEntity()->UsesPhysics() && !GameApp::get_mutable_instance().GetInput().IsMouseButtonDown(sf::Mouse::Left)) {
mCurrentRail = GetClosestRail(true, GetBoxEntity()->GetBody()->getWorldTransform().getOrigin());
}
//mDynamicsWorld->stepSimulation(time_delta, 10);
if(GameApp::get_mutable_instance().GetAppMode() == AM_PLAY) {
mDynamicsWorld->stepSimulation(1 / 60.f, 10);
mDynamicsWorld->clearForces();
}
Entity* c = GetClosestEntityOnLayer(GameApp::get_mutable_instance().GetMousePosition(), mEditorLayer);
BOOST_FOREACH(Entity& entity, mEntities) {
int h = 0;
if (mEditorSelectedEntity == &entity) h = 2;
else if (c == &entity) h = 1;
entity.SetHighlightMode(h);
entity.Update(time_delta);
/*if(entity.GetLifeTime() >= entity.GetTimeToLive()) {
mDynamicsWorld->removeRigidBody(entity.GetBody().get());
mEntities.erase_if(boost::bind(&Entity::GetUID, _1) == entity.GetEntityUniqueId());
}*/
}
const Vector2D Coordinates::ScreenPixelToWorldFloat(const Vector2D coords) {
Coordinates tmp;
tmp.SetScreenPixel(coords);
return tmp.GetWorldFloat();
}