vec2AlmostEq()

all.h

@@ -698,6 +698,7 @@ fn Range1u64 mRangeFromNIdxMCount(u64 n_idx, u64 n_count, u64 m_count);
 fn void u32Quicksort(u32 arr[], u32 low, u32 high);
 fn void u32ReverseArray(u32 arr[], u32 size);
 fn bool vec2Eq(Vec2 a, Vec2 b);
+fn bool vec2AlmostEq(Vec2 a, Vec2 b, Vec2 epsilon);
 fn Vec2f32 vec2Add(Vec2 a, Vec2 b);
 fn Vec2f32 vec2Subtract(Vec2 a, Vec2 b);
 fn f32 vec2Distance(Vec2 a, Vec2 b);

math.c

@@ -77,6 +77,11 @@ fn bool vec2Eq(Vec2 a, Vec2 b) {
   return a.x == b.x && a.y == b.y;
 }
 
+fn bool vec2AlmostEq(Vec2 a, Vec2 b, Vec2 epsilon) {
+  return Abs(a.x - b.x) <= epsilon.x
+    && Abs(a.y - b.y) <= epsilon.y;
+}
+
 fn Vec2f32 vec2Add(Vec2 a, Vec2 b) {
   Vec2f32 result = a;
   result.x += b.x;