1

metatable.go

@@ -102,6 +102,19 @@ func (this *IdMetaTable[T]) GetById(id int64) *T {
 	}
 }
 
+func (this *IdMetaTable[T]) RandElementExclude(cb func(*T) bool) *T {
+	if len(this.rawList) > 0 {
+		tryCount := 1
+		for tryCount < 1000 {
+			meta := this.rawList[rand.Intn(len(this.rawList))]
+			if cb(meta) {
+				return meta
+			}
+		}
+	}
+	return nil
+}
+
 func (this *RawMetaTable[T]) Load() {
 	if this.NoLoad {
 		return