move some stuff to C files

utils/math/gryphn_vec3.c

@@ -0,0 +1,36 @@
+#include "gryphn_vec3.h"
+#include "math.h"
+
+gnVec3 gnVec3Subtract(gnVec3 a, gnVec3 b) { return (gnVec3){
+    .x = a.x - b.x,
+    .y = a.y - b.y,
+    .z = a.z - b.z };
+}
+gnVec3 gnVec3Add(gnVec3 a, gnVec3 b) { return (gnVec3){
+    .x = a.x + b.x,
+    .b = a.y + b.y,
+    .c = a.z + b.z };
+}
+gnVec3 gnVec3Normalize(gnVec3 in) {
+    float lengthOfVector = sqrt((in.x * in.x) + (in.y * in.y) + (in.z * in.z));
+    return (gnVec3){
+        .a = in.x / lengthOfVector,
+        .b = in.y / lengthOfVector,
+        .c = in.z / lengthOfVector};
+}
+gnVec3 gnVec3Cross(gnVec3 a, gnVec3 b) { return (gnVec3){
+    .x = a.y * b.z - a.z * b.y,
+    .y = a.z * b.x - a.x * b.z,
+    .z = a.x * b.y - a.y * b.x};
+}
+float gnVec3Dot(gnVec3 a, gnVec3 b) { return a.x * b.x + a.y * b.y + a.z * b.z; }
+gnVec3 gnVec3Multiply(gnVec3 a, gnVec3 b) { return (gnVec3){
+    .x = a.x * b.x,
+    .y = a.y * b.y,
+    .z = a.z * b.z };
+}
+gnVec3 gnVec3MultiplyBy(gnVec3 a, float b) { return (gnVec3){
+    .x = a.x * b,
+    .y= a.y * b,
+    .z = a.z * b };
+}