From 462f54c36cdeb5fd659e949341ae422bb7568946 Mon Sep 17 00:00:00 2001
From: hyzboy <hyzboy@gmail.com>
Date: Mon, 13 May 2024 22:33:59 +0800
Subject: [PATCH] added IsNearlyZero/IsNearlyEqual to support vec2/vec3.

---
 inc/hgl/math/Vector.h | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/inc/hgl/math/Vector.h b/inc/hgl/math/Vector.h
index 2cc3303..ca62e4b 100644
--- a/inc/hgl/math/Vector.h
+++ b/inc/hgl/math/Vector.h
@@ -377,5 +377,35 @@ namespace hgl
                         hgl_max(v1.z,v2.z),
                         hgl_max(v1.w,v2.w));
     }
+
+    template<typename T,glm::qualifier Q>
+    const bool IsNearlyZero(const glm::vec<2,T,Q> &v)
+    {
+        return IsNearlyZero(v.x)
+             &&IsNearlyZero(v.y);
+    }
+
+    template<typename T,glm::qualifier Q>
+    const bool IsNearlyZero(const glm::vec<3,T,Q> &v)
+    {
+        return IsNearlyZero(v.x)
+             &&IsNearlyZero(v.y)
+             &&IsNearlyZero(v.z);
+    }
+
+    template<typename T,glm::qualifier Q>
+    const bool IsNearlyEqual(const glm::vec<2,T,Q> &a,const glm::vec<2,T,Q> &b)
+    {
+        return IsNearlyZero(a.x-b.x)
+             &&IsNearlyZero(a.y-b.y);
+    }
+
+    template<typename T,glm::qualifier Q>
+    const bool IsNearlyEqual(const glm::vec<3,T,Q> &a,const glm::vec<3,T,Q> &b)
+    {
+        return IsNearlyZero(a.x-b.x)
+             &&IsNearlyZero(a.y-b.y)
+             &&IsNearlyZero(a.z-b.z);
+    }
 }//namespace hgl
 #endif//HGL_ALGORITHM_MATH_VECTOR_INCLUDE