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Add some vector methods

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This commit is contained in:
Bruce Hill 2025-03-10 16:02:16 -04:00
parent e2fd5b49fd
commit 038a9f548e
1 changed files with 12 additions and 0 deletions
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12
examples/vectors/vectors.tm
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@ -8,6 +8,8 @@ struct Vec2(x,y:Num):
return Vec2(a.x-b.x, a.y-b.y) return Vec2(a.x-b.x, a.y-b.y)
func times(a,b:Vec2->Vec2; inline): func times(a,b:Vec2->Vec2; inline):
return Vec2(a.x*b.x, a.y*b.y) return Vec2(a.x*b.x, a.y*b.y)
func negative(v:Vec2->Vec2; inline):
return Vec2(-v.x, -v.y)
func dot(a,b:Vec2->Num; inline): func dot(a,b:Vec2->Num; inline):
return (a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y) return (a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y)
func cross(a,b:Vec2->Num; inline): func cross(a,b:Vec2->Num; inline):
@ -27,6 +29,10 @@ struct Vec2(x,y:Num):
return v return v
len := v:length() len := v:length()
return Vec2(v.x/len, v.y/len) return Vec2(v.x/len, v.y/len)
func rotated(v:Vec2, radians:Num -> Vec2):
cos := radians:cos() or return v
sin := radians:sin() or return v
return Vec2(cos*v.x - sin*v.y, sin*v.x + cos*v.y)
func mix(a,b:Vec2, amount:Num -> Vec2): func mix(a,b:Vec2, amount:Num -> Vec2):
return Vec2( return Vec2(
amount:mix(a.x, b.x), amount:mix(a.x, b.x),
@ -41,6 +47,8 @@ struct Vec3(x,y,z:Num):
return Vec3(a.x-b.x, a.y-b.y, a.z-b.z) return Vec3(a.x-b.x, a.y-b.y, a.z-b.z)
func times(a,b:Vec3->Vec3; inline): func times(a,b:Vec3->Vec3; inline):
return Vec3(a.x*b.x, a.y*b.y, a.z*b.z) return Vec3(a.x*b.x, a.y*b.y, a.z*b.z)
func negative(v:Vec3->Vec3; inline):
return Vec3(-v.x, -v.y, -v.z)
func dot(a,b:Vec3->Num; inline): func dot(a,b:Vec3->Num; inline):
return (a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y) + (a.z-b.z)*(a.z-b.z) return (a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y) + (a.z-b.z)*(a.z-b.z)
func cross(a,b:Vec3->Vec3; inline): func cross(a,b:Vec3->Vec3; inline):
@ -74,6 +82,8 @@ struct IVec2(x,y:Int):
return IVec2(a.x-b.x, a.y-b.y) return IVec2(a.x-b.x, a.y-b.y)
func times(a,b:IVec2->IVec2; inline): func times(a,b:IVec2->IVec2; inline):
return IVec2(a.x*b.x, a.y*b.y) return IVec2(a.x*b.x, a.y*b.y)
func negative(v:IVec2->IVec2; inline):
return IVec2(-v.x, -v.y)
func dot(a,b:IVec2->Int; inline): func dot(a,b:IVec2->Int; inline):
return (a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y) return (a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y)
func cross(a,b:IVec2->Int; inline): func cross(a,b:IVec2->Int; inline):
@ -99,6 +109,8 @@ struct IVec3(x,y,z:Int):
return IVec3(a.x-b.x, a.y-b.y, a.z-b.z) return IVec3(a.x-b.x, a.y-b.y, a.z-b.z)
func times(a,b:IVec3->IVec3; inline): func times(a,b:IVec3->IVec3; inline):
return IVec3(a.x*b.x, a.y*b.y, a.z*b.z) return IVec3(a.x*b.x, a.y*b.y, a.z*b.z)
func negative(v:IVec3->IVec3; inline):
return IVec3(-v.x, -v.y, -v.z)
func dot(a,b:IVec3->Int; inline): func dot(a,b:IVec3->Int; inline):
return (a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y) + (a.z-b.z)*(a.z-b.z) return (a.x-b.x)*(a.x-b.x) + (a.y-b.y)*(a.y-b.y) + (a.z-b.z)*(a.z-b.z)
func cross(a,b:IVec3->IVec3; inline): func cross(a,b:IVec3->IVec3; inline):