Exemplos de rectangleCenter em C++ (Cpp)

Exemplo n.º 1

Arquivo: CCGeometry.cpp Projeto: DominicD/Hyperdrive

bool Rect::intersectsCircle(const cocos2d::Vec2 &center, float radius) const
{
    Vec2 rectangleCenter((origin.x + size.width / 2),
                         (origin.y + size.height / 2));
    
    float w = size.width / 2;
    float h = size.height / 2;
    
    float dx = fabs(center.x - rectangleCenter.x);
    float dy = fabs(center.y - rectangleCenter.y);
    
    if (dx > (radius + w) || dy > (radius + h))
    {
        return false;
    }
    
    Vec2 circleDistance(fabs(center.x - origin.x - w),
                        fabs(center.y - origin.y - h));
    
    if (circleDistance.x <= (w))
    {
        return true;
    }
    
    if (circleDistance.y <= (h))
    {
        return true;
    }
    
    float cornerDistanceSq = powf(circleDistance.x - w, 2) + powf(circleDistance.y - h, 2);
    
    return (cornerDistanceSq <= (powf(radius, 2)));
}

Exemplo n.º 2

Arquivo: GAFGeometry.cpp Projeto: timur-losev/GAFUnrealEngine4

bool FGAFRect::IntersectsCircle(const FVector2D &center, float radius) const
{
    FVector2D rectangleCenter((Origin.X + Size.Width / 2),
                         (Origin.Y + Size.Height / 2));
    
    float w = Size.Width / 2.f;
    float h = Size.Height / 2.f;
    
    float dx = FMath::Abs(center.X - rectangleCenter.X);
    float dy = FMath::Abs(center.Y - rectangleCenter.Y);
    
    if (dx > (radius + w) || dy > (radius + h))
    {
        return false;
    }
    
    FVector2D circleDistance(FMath::Abs(center.X - Origin.X - w),
                        FMath::Abs(center.Y - Origin.Y - h));
    
    if (circleDistance.X <= (w))
    {
        return true;
    }
    
    if (circleDistance.Y <= (h))
    {
        return true;
    }
    
    float cornerDistanceSq = FMath::Pow(circleDistance.X - w, 2.f) + FMath::Pow(circleDistance.Y - h, 2.f);
    
    return (cornerDistanceSq <= (FMath::Pow(radius, 2.f)));
}