void main(){
double x, y;
int index;
cout << "Please enter the section (1 or 2) you want " << endl;
cin >> index;
if (index == 1){
Point pt;//constructor occurs here
Point pt1;//constructor occurs here
cout << "Please enter the value of x: " << endl;
cin >> x;
cout << "Please enter the value of y: " << endl;
cin >> y;
pt.X(x);
pt.Y(y);
cout << pt.ToString();
cout << "Please enter the value of x: " << endl;
cin >> x;
cout << "Please enter the value of y: " << endl;
cin >> y;
pt1.X(x);
pt1.Y(y);
cout << pt1.ToString();
cout << "The distance between point 1 to origin is " << pt.Distance() << endl;
cout << "The distance between point 2 to point 1 is " << pt.Distance(pt1) << endl;
/*the number of constructors (2) and deconstructors(2) are the same since we pass the point by reference*/
//two deconstructors occurs here
}
void main(){
double x, y;
int index;
cout << "Please enter the section (1 or 2) you want " << endl;
cin >> index;
if (index == 1){
Point pt;//constructor occurs here
Point pt1;//constructor occurs here
cout << "Please enter the value of x: " << endl;
cin >> x;
cout << "Please enter the value of y: " << endl;
cin >> y;
pt.SetX(x);
pt.SetY(y);
cout << pt.ToString();
cout << "Please enter the value of x: " << endl;
cin >> x;
cout << "Please enter the value of y: " << endl;
cin >> y;
pt1.SetX(x);
pt1.SetY(y);
cout << pt1.ToString();
//one deconstructor occurs before printing
cout << "The distance between point 2 to point 1 is " << pt.Distance(pt1) << endl;
/*before copy constructor added, the number of constructors (2) and deconstructors(3) are not the same */
//two deconstructors occurs here
}
double Distance(const Point &p1, const Point &p2,
const bool &isSegment) const {
double dist = ((p2 - p1) ^ (*this - p1)) / p2.Distance(p1);
if (isSegment) {
double dot1 = (*this - p2) * (p2 - p1);
if (::cmp(dot1) > 0)
return sqrt((p2 - *this) * (p2 - *this));
double dot2 = (*this - p1) * (p1 - p2);
if (::cmp(dot2) > 0)
return sqrt((p1 - *this) * (p1 - *this));
}
return abs(dist);
}
bool MapPanel::Click(int x, int y)
{
// Figure out if a system was clicked on.
Point click = Point(x, y) - center;
for(const auto &it : GameData::Systems())
if(click.Distance(it.second.Position()) < 10.
&& (player.HasSeen(&it.second) || &it.second == specialSystem))
{
Select(&it.second);
break;
}
return true;
}
float IndexedTriangle::ComputeOcclusionPotential(const Point* verts, const Point& view) const
{
if(!verts) return 0.0f;
// Occlusion potential: -(A * (N|V) / d^2)
// A = polygon area
// N = polygon normal
// V = view vector
// d = distance viewpoint-center of polygon
float A = Area(verts);
Point N; Normal(verts, N);
Point C; Center(verts, C);
float d = view.Distance(C);
return -(A*(N|view))/(d*d);
}
void main()
{
using namespace std;
const Point cp(1.5, 3.9); //creates a constant Point variable called cp
cp.ToString(); // output onto screen the ToString() function of cp
cout<<"The distance between this point and the origin is :"<<cp.Distance()<<endl;
//prints the distance of Point cp and origin onto screen
cout<<"For the source code cp.X(0.3):, the x coordinate is : "<<cp.X(0.3)<<endl;
//output the x-coordinate of cp as 0.3
system("PAUSE");
}
bool MissionPanel::Click(int x, int y)
{
dragSide = 0;
// Handle clicks on the interface buttons.
{
const Interface *interface = GameData::Interfaces().Get("mission");
char key = interface->OnClick(Point(x, y));
if(key)
return DoKey(key);
}
{
const Interface *interface = GameData::Interfaces().Get("map buttons");
char key = interface->OnClick(Point(x, y));
if(key)
return DoKey(key);
}
if(x > Screen::Right() - 80 && y > Screen::Bottom() - 50)
return DoKey('p');
if(x < Screen::Left() + SIDE_WIDTH)
{
unsigned index = max(0, (y + static_cast<int>(availableScroll) - 36 - Screen::Top()) / 20);
if(index < available.size())
{
availableIt = available.begin();
while(index--)
++availableIt;
acceptedIt = accepted.end();
dragSide = -1;
selectedSystem = availableIt->Destination()->GetSystem();
center = Point(0., -80.) - selectedSystem->Position();
return true;
}
}
else if(x >= Screen::Right() - SIDE_WIDTH)
{
int index = max(0, (y + static_cast<int>(acceptedScroll) - 36 - Screen::Top()) / 20);
if(index < AcceptedVisible())
{
acceptedIt = accepted.begin();
while(index || !acceptedIt->IsVisible())
{
index -= acceptedIt->IsVisible();
++acceptedIt;
}
availableIt = available.end();
dragSide = 1;
selectedSystem = acceptedIt->Destination()->GetSystem();
center = Point(0., -80.) - selectedSystem->Position();
return true;
}
}
// Figure out if a system was clicked on.
Point click = Point(x, y) / Zoom() - center;
const System *system = nullptr;
for(const auto &it : GameData::Systems())
if(click.Distance(it.second.Position()) < 10.
&& (player.HasSeen(&it.second) || &it.second == specialSystem))
{
system = &it.second;
break;
}
if(system)
{
Select(system);
int options = available.size() + accepted.size();
// If you just aborted your last mission, it is possible that neither
// iterator is valid. In that case, start over from the beginning.
if(availableIt == available.end() && acceptedIt == accepted.end())
{
if(!available.empty())
availableIt = available.begin();
else
acceptedIt = accepted.begin();
}
while(options--)
{
if(availableIt != available.end())
{
++availableIt;
if(availableIt == available.end())
{
if(!accepted.empty())
acceptedIt = accepted.begin();
else
availableIt = available.begin();
}
}
else if(acceptedIt != accepted.end())
{
++acceptedIt;
if(acceptedIt == accepted.end())
{
if(!available.empty())
availableIt = available.begin();
else
acceptedIt = accepted.begin();
}
}
if(acceptedIt != accepted.end() && !acceptedIt->IsVisible())
continue;
if(availableIt != available.end() && availableIt->Destination()->GetSystem() == system)
break;
if(acceptedIt != accepted.end() && acceptedIt->Destination()->GetSystem() == system)
break;
}
}
return true;
}
bool MapDetailPanel::Click(int x, int y)
{
{
const Interface *interface = GameData::Interfaces().Get("map buttons");
char key = interface->OnClick(Point(x + 250, y));
// In the mission panel, the "Done" button in the button bar should be
// ignored (and is not shown).
if(key)
return DoKey(key);
}
if(x < Screen::Left() + 160)
{
if(y >= tradeY && y < tradeY + 200)
{
commodity = (y - tradeY) / 20;
return true;
}
else if(y < governmentY)
commodity = SHOW_REPUTATION;
else if(y >= governmentY && y < governmentY + 20)
commodity = SHOW_GOVERNMENT;
else
{
for(const auto &it : planetY)
if(y >= it.second && y < it.second + 110)
{
selectedPlanet = it.first;
if(y >= it.second + 50 && y < it.second + 70)
{
if(commodity == SHOW_SHIPYARD && selectedPlanet->HasShipyard())
ListShips();
commodity = SHOW_SHIPYARD;
}
else if(y >= it.second + 70 && y < it.second + 90)
{
if(commodity == SHOW_OUTFITTER && selectedPlanet->HasOutfitter())
ListOutfits();
commodity = SHOW_OUTFITTER;
}
else if(y >= it.second + 90 && y < it.second + 110)
commodity = SHOW_VISITED;
return true;
}
}
}
else if(x >= Screen::Right() - 240 && y >= Screen::Bottom() - 240)
{
Point click = Point(x, y);
selectedPlanet = nullptr;
double distance = numeric_limits<double>::infinity();
for(const auto &it : planets)
{
double d = click.Distance(it.second);
if(d < distance)
{
distance = d;
selectedPlanet = it.first;
}
}
return true;
}
else if(y >= Screen::Bottom() - 40 && x >= Screen::Right() - 335 && x < Screen::Right() - 265)
{
// The user clicked the "done" button.
return DoKey(SDLK_d);
}
else if(y >= Screen::Bottom() - 40 && x >= Screen::Right() - 415 && x < Screen::Right() - 345)
{
// The user clicked the "missions" button.
return DoKey(SDLK_PAGEDOWN);
}
MapPanel::Click(x, y);
if(selectedPlanet && selectedPlanet->GetSystem() != selectedSystem)
selectedPlanet = nullptr;
return true;
}
bool MapDetailPanel::Click(int x, int y)
{
if(x < Screen::Left() + 160)
{
if(y >= tradeY && y < tradeY + 200)
{
commodity = (y - tradeY) / 20;
return true;
}
else if(y < governmentY)
commodity = SHOW_REPUTATION;
else if(y >= governmentY && y < governmentY + 20)
commodity = SHOW_GOVERNMENT;
else
{
for(const auto &it : planetY)
if(y >= it.second && y < it.second + 110)
{
selectedPlanet = it.first;
if(y >= it.second + 50 && y < it.second + 70)
{
if(commodity == SHOW_SHIPYARD && selectedPlanet->HasShipyard())
ListShips();
commodity = SHOW_SHIPYARD;
}
else if(y >= it.second + 70 && y < it.second + 90)
{
if(commodity == SHOW_OUTFITTER && selectedPlanet->HasOutfitter())
ListOutfits();
commodity = SHOW_OUTFITTER;
}
else if(y >= it.second + 90 && y < it.second + 110)
commodity = SHOW_VISITED;
return true;
}
}
}
else if(x >= Screen::Right() - 240 && y >= Screen::Top() + 280 && y <= Screen::Top() + 520)
{
Point click = Point(x, y);
selectedPlanet = nullptr;
double distance = numeric_limits<double>::infinity();
for(const auto &it : planets)
{
double d = click.Distance(it.second);
if(d < distance)
{
distance = d;
selectedPlanet = it.first;
}
}
return true;
}
else if(y >= Screen::Bottom() - 40 && x >= Screen::Right() - 335 && x < Screen::Right() - 265)
{
// The user clicked the "done" button.
return DoKey(SDLK_d);
}
else if(y >= Screen::Bottom() - 40 && x >= Screen::Right() - 415 && x < Screen::Right() - 345)
{
// The user clicked the "missions" button.
return DoKey(SDLK_PAGEDOWN);
}
MapPanel::Click(x, y);
if(selectedPlanet && selectedPlanet->GetSystem() != selectedSystem)
selectedPlanet = nullptr;
return true;
}