``` feat(pet): 重构宠物繁殖系统，添加蛋孵化功能

common/utils/timer/option.go

@@ -0,0 +1,39 @@
+// Copyright 2020-2024 guonaihong, antlabs. All rights reserved.
+//
+// mit license
+package timer
+
+type option struct {
+	timeWheel bool
+	minHeap   bool
+	skiplist  bool
+	rbtree    bool
+}
+
+type Option func(c *option)
+
+func WithTimeWheel() Option {
+	return func(o *option) {
+		o.timeWheel = true
+	}
+}
+
+func WithMinHeap() Option {
+	return func(o *option) {
+		o.minHeap = true
+	}
+}
+
+// TODO
+func WithSkipList() Option {
+	return func(o *option) {
+		o.skiplist = true
+	}
+}
+
+// TODO
+func WithRbtree() Option {
+	return func(o *option) {
+		o.rbtree = true
+	}
+}