From 8aab91479ae8295d09bd4a22ab6e75ddcd870948 Mon Sep 17 00:00:00 2001
From: Tenari <djz24@case.edu>
Date: Sat, 29 Aug 2026 17:27:19 -0500
Subject: [PATCH] vec2AlmostEq()

---
 all.h  | 1 +
 math.c | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/all.h b/all.h
index 6f51ee2..cca6ec2 100644
--- a/all.h
+++ b/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);
diff --git a/math.c b/math.c
index ea2c63f..62d96a7 100644
--- a/math.c
+++ 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;