76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
#include "../aliases.h"
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#include "../helper_macros.h"
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#include <stdio.h>
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#include <math.h>
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#define obj(o, m) o.m
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#define printf_spec(PI) "%" stringify(PI) ", "
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typedef struct {
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#define VEC(type, name) type name;
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VEC_FIELDS
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#undef VEC
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} typename(C, I);
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INTERNAL void funcname(print, C, I)(typename(C, I) v1);
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INTERNAL typename(C, I) funcname(add, C, I)(typename(C, I) v1, typename(C, I) v2);
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INTERNAL typename(C, I) funcname(sub, C, I)(typename(C, I) v1, typename(C, I) v2);
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INTERNAL typename(C, I) funcname(mul, C, I)(typename(C, I) v1, typename(C, I) v2);
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INTERNAL T funcname(dot, C, I)(typename(C, I) v1, typename(C, I) v2);
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INTERNAL T funcname(magnitude, C, I)(typename(C, I) v1);
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#ifdef VEC_IMPLEMENTATION
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void funcname(print, C, I)(typename(C, I) v1) {
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printf("{ "
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#define VEC(type, name) printf_spec(PI)
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VEC_FIELDS "%c}\n",
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#undef VEC
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#define VEC(type, name) obj(v1, name),
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VEC_FIELDS
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#undef VEC
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'\0');
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}
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INTERNAL typename(C, I) funcname(add, C, I)(typename(C, I) v1, typename(C, I) v2) {
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return (typename(C, I)) {
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#define VEC(type, name) obj(v1, name) + obj(v2, name),
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VEC_FIELDS
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#undef VEC
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};
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}
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INTERNAL typename(C, I) funcname(sub, C, I)(typename(C, I) v1, typename(C, I) v2) {
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return (typename(C, I)) {
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#define VEC(type, name) obj(v1, name) - obj(v2, name),
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VEC_FIELDS
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#undef VEC
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};
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}
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INTERNAL typename(C, I) funcname(mul, C, I)(typename(C, I) v1, typename(C, I) v2) {
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return (typename(C, I)) {
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#define VEC(type, name) obj(v1, name) * obj(v2, name),
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VEC_FIELDS
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#undef VEC
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};
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}
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INTERNAL T funcname(dot, C, I)(typename(C, I) v1, typename(C, I) v2) {
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return
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#define VEC(type, name) obj(v1, name) * obj(v2, name) +
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VEC_FIELDS 0;
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#undef VEC
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}
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INTERNAL T funcname(magnitude, C, I)(typename(C, I) v1) {
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T dotproduct = funcname(dot, C, I)(v1, v1);
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return (T)sqrtf(dotproduct);
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}
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#endif
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#undef VEC_FIELDS
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#undef PI
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#undef I
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#undef C
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#undef T
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