polyplex.math.geometry source code

1 module polyplex.math.geometry;
2 import polyplex.math.vector;
3 
4 alias Ray2D = RayT!float2;
5 alias Ray = RayT!float3;
6 /// A ray that supports two and three dimensions
7 struct RayT(VT) if(is(VT==float2) || is(VT==float3)) {
8   public VT ori;
9   public VT dir;
10   immutable alias VectorType = VT;
11 
12   /// Constructs a ray with an origin and direction
13   public this ( VT origin, VT direction ) pure nothrow {
14     ori = origin;
15     dir = direction;
16   }
17 
18   /// Returns a ray with a normalized ray direction
19   RayT!VT Normalize ( ) pure nothrow {
20     return RayT!VT(ori, dir.Normalize);
21   }
22 }
23 
24 unittest {
25   import std.traits;
26   assert(__traits(compiles, Ray(float3(0.5f), float3(0.2f, 0.7f, 0f).Normalize)));
27   assert(__traits(compiles, Ray(float3(0.5f), float3(0.2f, 0.7f, 0f)).Normalize));
28 }