From d8417b03b9c2a820d3d3be0dfa80841b4d1f4c04 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Tue, 9 Nov 2021 19:22:13 +0800
Subject: *misc

---
 Runtime/Math/Vector2.h | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

(limited to 'Runtime/Math')

diff --git a/Runtime/Math/Vector2.h b/Runtime/Math/Vector2.h
index 7c519b8..31098ab 100644
--- a/Runtime/Math/Vector2.h
+++ b/Runtime/Math/Vector2.h
@@ -1,11 +1,12 @@
 #pragma once
 #include "MathHelper.h"
 #include "Runtime/Utilities/Assert.h"
+#include "Runtime/Lua/LuaHelper.h"
 
 namespace Internal
 {
     template<typename T>
-    struct Vector2T
+    struct Vector2T  : public LuaBind::ILuaClass
     {
         Vector2T(T x = 0, T y = 0)
         {
@@ -43,6 +44,30 @@ namespace Internal
             return v.x != x || v.y != y;
         }
 
+        Vector2T<T> operator - (const Vector2T& v) const
+        {
+            Vector2T<T> res = Vector2T<T>(x - v.x, y - v.y);
+            return res;
+        }
+
+        void CastToLuaObject(LuaBind::State& state) const override
+        {
+            int top = state.GetTop();
+            if (LuaHelper::GetLuaClass(state, "GameLab.Engine.Math.Vector2"))
+            {
+                lua_getfield(state, -1, "New");
+                lua_pushnumber(state, (float)x);
+                lua_pushnumber(state, (float)y);
+                state.Call(2, 1);
+                lua_replace(state, top + 1);
+                lua_settop(state, top + 1);
+            }
+            else
+            {
+                lua_pushnil(state);
+            }
+        }
+
         T x, y;
 
         static Vector2T<T> zero;
-- 
cgit v1.1-26-g67d0