*粒子系统

1 files changed, 11 insertions, 0 deletions

diff --git a/src/libjin/Math/je_vector2.hpp b/src/libjin/Math/je_vector2.hpp
index e9599e1..b4cab44 100644
--- a/src/libjin/Math/je_vector2.hpp
+++ b/src/libjin/Math/je_vector2.hpp
@@ -31,6 +31,17 @@ namespace JinEngine
                 data[1] = v.data[1];
             }
 
+            Vector2<T> operator * (float n)
+            {
+                return Vector2<T>(data[0]*n, data[1]*n);
+            }
+
+            void operator +=(const Vector2<T> v)
+            {
+                data[0] += v.data[0];
+                data[1] += v.data[1];
+            }
+
             void set(T _x, T _y)
             {
                 data[0] = _x;