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Tests for vector functions

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BirDt_ 2026-04-06 13:07:39 +08:00
parent 8dbf44a9f0
commit 65a60a2a65
3 changed files with 58 additions and 1 deletions
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26
engine/components.scm
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@ -56,7 +56,8 @@
;; Export vector functions
(export vector-= vector-+ vector-- vector-* vector-/
vector-magnitude vector-normalize)
vector-magnitude vector-normalize vector-dot
vector-angle-between)
;; TODO: make this function accept any number of vectors
(define (vector-= vec1 vec2)
@ -126,6 +127,29 @@
(sqrt (+ (expt (vector-x vec) 2)
(expt (vector-y vec) 2))))))
(define (vector-dot vec1 vec2)
(assert (and (record? vec1)
(record? vec2)))
(assert (eq? (rtd-name (record-rtd vec1))
(rtd-name (record-rtd vec2))))
(assert (any (lambda (pred) (pred vec1)) (list vector2?)))
(cond
((vector2? vec1)
(+ (* (vector-x vec1) (vector-x vec2))
(* (vector-y vec1) (vector-y vec2))))))
(define (vector-angle-between vec1 vec2)
(assert (and (record? vec1)
(record? vec2)))
(assert (eq? (rtd-name (record-rtd vec1))
(rtd-name (record-rtd vec2))))
(assert (any (lambda (pred) (pred vec1)) (list vector2?)))
(cond
((vector2? vec1)
(acos (/ (vector-dot vec1 vec2)
(* (vector-magnitude vec1)
(vector-magnitude vec2)))))))
;; Normalization
(define (vector-normalize vec)
(assert (any (lambda (pred) (pred vec)) (list vector2?))) ;; TODO: This assertion should be moved out of here