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Added ellipse contains function to Geometry2D.

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This commit is contained in:
sigonasr2 2023-06-22 16:42:23 -07:00
parent e6268b0edc
commit d254e169c4
3 changed files with 37 additions and 2 deletions
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2
Crawler/Crawler.cpp
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@ -133,7 +133,7 @@ bool Crawler::OnUserCreate(){
,{MonsterName::SLIME_BLUE,{(rand()%20/2.f-5)*24,(rand()%20/2.f-5)*24}}
}}));
LoadLevel(CAMPAIGN_1_1);
LoadLevel(LEVEL2);
return true;
}

2
Crawler/Version.h
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@ -2,7 +2,7 @@
#define VERSION_MAJOR 0
#define VERSION_MINOR 2
#define VERSION_PATCH 0
#define VERSION_BUILD 175
#define VERSION_BUILD 180
#define stringify(a) stringify_(a)
#define stringify_(a) #a

35
Crawler/olcUTIL_Geometry2D.h
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@ -197,6 +197,34 @@ namespace olc::utils::geom2d
}
};
template<typename T>
struct ellipse
{
olc::v2d_generic<T> pos;
olc::v2d_generic<T> radius;
inline ellipse(const olc::v2d_generic<T>& p = { T(0), T(0) }, const olc::v2d_generic<T> r = {T(1),T(1)})
: pos(p), radius(r)
{ }
// Get area of ellipse
inline constexpr T area() const
{
return T(pi) * radius.x * radius.y;
}
// Get perimeter of an ellipse
inline constexpr T perimeter() const
{
return T(2.0 * pi) * sqrt((radius.x*radius.x+radius.y*radius.y)/(2*1.0));
}
// Get circumference of ellipse. Which is the same as a permieter of one.
inline constexpr T circumference() const
{
return perimeter();
}
};
template<typename T>
struct circle
@ -376,6 +404,13 @@ namespace olc::utils::geom2d
p.x > (r.pos.x + r.size.x) || p.y > (r.pos.y + r.size.y));
}
// Checks if ellipse contains a point
template<typename T1, typename T2>
inline constexpr bool contains(const ellipse<T1>& c, const olc::v2d_generic<T2>& p)
{
return std::pow(p.x-c.pos.x,2)/(c.radius.x*c.radius.x)+std::pow(p.y-c.pos.y,2)/(c.radius.y*c.radius.y)<1;
}
// Checks if circle contains a point
template<typename T1, typename T2>
inline constexpr bool contains(const circle<T1>& c, const olc::v2d_generic<T2>& p)