diff options
| -rw-r--r-- | game.scm | 64 |
1 files changed, 34 insertions, 30 deletions
@@ -115,6 +115,31 @@ "image" "new" (ref string) -> (ref extern)) + (define-syntax-rule (define-type name + constructor + predicate + (field getter setter) ...) + (begin + (define (constructor field ...) + (vector 'name field ...)) + (define (predicate obj) + (match obj + (#('name field ...) #t) + (_ #f))) + (define (getter obj) + (match obj + (#('name field ...) + field))) + ... + (define setter + (let ((i (1+ (- (length '(field ...)) + (length (memq 'field '(field ...))))))) + (lambda (obj val) + (match obj + (#('name field ...) + (vector-set! obj i val)))))) + ...)) + ;; TODO: Add basic fmod as inline wasm function ;; Hoot's exact and inexact aren't working right. These next two @@ -164,19 +189,23 @@ ((> x max) max) (else x))) + (define-type vec2 + make-vec2 + vec2? + (bv vec2-bv set-vec2-bv!)) (define (vec2 x y) - (let ((v (make-bytevector 16))) + (let ((v (make-vec2 (make-bytevector 16)))) (set-vec2-x! v x) (set-vec2-y! v y) v)) (define (vec2-x v) - (f64-ref v 0)) + (f64-ref (vec2-bv v) 0)) (define (vec2-y v) - (f64-ref v 8)) + (f64-ref (vec2-bv v) 8)) (define (set-vec2-x! v x) - (f64-set! v 0 x)) + (f64-set! (vec2-bv v) 0 x)) (define (set-vec2-y! v y) - (f64-set! v 8 y)) + (f64-set! (vec2-bv v) 8 y)) (define (vec2-add! v w) (set-vec2-x! v (+ (vec2-x v) (vec2-x w))) (set-vec2-y! v (+ (vec2-y v) (vec2-y w)))) @@ -262,31 +291,6 @@ (define sound:enemy-shoot (load-sound-effect "audio/enemy-shoot.wav")) (define sound:bullet-hit (load-sound-effect "audio/bullet-hit.wav")) - (define-syntax-rule (define-type name - constructor - predicate - (field getter setter) ...) - (begin - (define (constructor field ...) - (vector 'name field ...)) - (define (predicate obj) - (match obj - (#('name field ...) #t) - (_ #f))) - (define (getter obj) - (match obj - (#('name field ...) - field))) - ... - (define setter - (let ((i (1+ (- (length '(field ...)) - (length (memq 'field '(field ...))))))) - (lambda (obj val) - (match obj - (#('name field ...) - (vector-set! obj i val)))))) - ...)) - ;; Scripting (define (make-scheduler max-tasks) (vector 0 0 max-tasks (make-vector max-tasks))) |