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fixes #73 by removing the faulty vec2 proc and making the vec3 angle proc work for vec2

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lilkeet 2024-06-24 01:55:34 -05:00
parent 7282ae1247
commit 57ad916ab1
1 changed files with 9 additions and 5 deletions
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src/vmath.nim
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@ -1573,12 +1573,16 @@ proc angle*[T](a: GVec2[T]): T =
## Angle of a Vec2. ## Angle of a Vec2.
arctan2(a.y, a.x) arctan2(a.y, a.x)
proc angle*[T](a, b: GVec2[T]): T = proc angle*[T](a, b: GVec2[T]|GVec3[T]): T =
## Angle between 2 Vec2. ## Angle between 2 Vec2 or Vec3.
fixAngle(arctan2(a.y - b.y, a.x - b.x)) runnableExamples:
assert angle(vec2(0.0, 1.0), vec2(1.0, 0.0)).toDegrees() == 90.0
assert angle(vec2(0.0, 1.0), vec2(-1.0, 0.0)).toDegrees() == 90.0
assert angle(vec2(0.0, 1.0), vec2(0.0, -1.0)).toDegrees() == 180.0
proc angle*[T](a, b: GVec3[T]): T = assert angle(vec3(0.0, 1.0, 0.0), vec3(1.0, 0.0, 0.0)).toDegrees() == 90.0
## Angle between 2 Vec3. assert angle(vec3(0.0, 1.0, 0.0), vec3(-1.0, 0.0, 0.0)).toDegrees() == 90.0
assert angle(vec3(0.0, 1.0, 0.0), vec3(0.0, -1.0, 0.0)).toDegrees() == 180.0
var dot = dot(a, b) var dot = dot(a, b)
dot = dot / (a.length * b.length) dot = dot / (a.length * b.length)
arccos(dot) arccos(dot)