2 files changed, 28 insertions, 0 deletions
diff --git a/engine/utils/coding.ts b/engine/utils/coding.ts
new file mode 100644
index 0000000..4c1b17f
--- /dev/null
+++ b/engine/utils/coding.ts
@@ -0,0 +1,27 @@
+const replacer = (_key: any, value: any) => {
+  if (value instanceof Map) {
+    return {
+      dataType: "Map",
+      value: Array.from(value.entries()),
+    };
+  } else {
+    return value;
+  }
+};
+
+const reviver = (_key: any, value: any) => {
+  if (typeof value === "object" && value !== null) {
+    if (value.dataType === "Map") {
+      return new Map(value.value);
+    }
+  }
+  return value;
+};
+
+export const stringify = (obj: any) => {
+  return JSON.stringify(obj, replacer);
+};
+
+export const parse = <T>(str: string) => {
+  return JSON.parse(str, reviver) as unknown as T;
+};
diff --git a/engine/utils/index.ts b/engine/utils/index.ts
index 82a0d05..b70734f 100644
--- a/engine/utils/index.ts
+++ b/engine/utils/index.ts
@@ -1,3 +1,4 @@
 export * from "./rotateVector";
 export * from "./dotProduct";
 export * from "./clamp";
+export * from "./coding";