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Add linalg.clamp_length(vector, max_length) -> clamped_vector

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Bazzagibbs
2024-12-02 11:58:36 +11:00
parent 03a53ccce2
commit 4b76568596
1 changed files with 12 additions and 0 deletions
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core/math/linalg/general.odin
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@@ -167,6 +167,18 @@ vector_triple_product :: proc "contextless" (a, b, c: $T/[$N]$E) -> T where IS_N
length :: proc{vector_length, quaternion_length} length :: proc{vector_length, quaternion_length}
length2 :: proc{vector_length2, quaternion_length2} length2 :: proc{vector_length2, quaternion_length2}
@(require_results)
clamp_length :: proc "contextless" (v: $T/[$N]$E, a: E) -> T where IS_FLOAT(E) {
if a <= 0 {
return 0
}
m2 := length2(v)
return v if (m2 <= a*a) else (v / sqrt(m2) * a) // returns original when m2 is 0
}
@(require_results) @(require_results)
projection :: proc "contextless" (x, normal: $T/[$N]$E) -> T where IS_NUMERIC(E) { projection :: proc "contextless" (x, normal: $T/[$N]$E) -> T where IS_NUMERIC(E) {
return dot(x, normal) / dot(normal, normal) * normal return dot(x, normal) / dot(normal, normal) * normal