Unity 3D 2018.1建造游戏存档系统求助：随机世界存储难题

Hey there! Don’t stress—creating a save system for your 100x100 world is totally feasible, even with your random generation setup. Let’s walk through practical, actionable steps tailored exactly to your needs:

1. Define a Minimal, Serializable Data Structure #

First, stop trying to save entire game objects (that’s usually where folks get stuck). Instead, save only the critical data needed to reconstruct each tile. For your game, each 100x100 tile needs just a handful of key details:

// Example for Unity (adjust syntax for your engine/language)
[Serializable]
public class TileSaveData {
    public int GroundTypeId; // e.g., 0=grass, 1=dirt, 2=sand
    public bool HasTree;
    public bool HasRock;
    public int BuildingTypeId; // -1 = no building, 0=small cabin, 1=stone wall, etc.
    public int BuildingRotation; // 0-3 for north/east/south/west
}

Store all these in a 2D array (TileSaveData[,] worldData = new TileSaveData[100,100];)—this is lightweight, easy to serialize, and fits perfectly in local storage.

2. Choose a Serialization & Storage Method #

Pick one of these proven options based on your engine and priorities:

• JSON (Easy to Debug): Convert your 2D array to a JSON string using libraries like Newtonsoft.Json (C#) or built-in tools (e.g., Godot’s JSON class, Unity’s JsonUtility). Save the string to a local file in your game’s persistent storage folder (e.g., Application.persistentDataPath in Unity).

  // Quick save example (Unity)
  string json = JsonUtility.ToJson(worldData);
  File.WriteAllText(Path.Combine(Application.persistentDataPath, "savegame.json"), json);
  

• Binary (Smaller, Faster): Serialize the data to a byte stream for compact storage. This is great if you want to prevent casual save file editing. Most languages have built-in binary serialization tools.
• Engine-Specific Tools: If you’re using Godot, use ResourceSaver to save a custom Resource containing your tile data. For Unreal, use FJsonObject or USaveGame objects.

3. Override Random Generation with Load Logic #

The core fix to your random spawn problem is replacing world creation when a save exists:

• On game startup, check if your save file exists in the persistent storage folder.
• If save exists: Load the serialized data, then loop through each tile in the 100x100 grid and spawn/set the ground, trees, rocks, and buildings based on the saved values.
• If no save exists: Run your random generation code as usual, then immediately save the generated world so players can pick up where they left off next time.

4. Add Robustness & Quality-of-Life Tweaks #

These small touches will make your save system more reliable:

• Save Versioning: Add a SaveVersion field to your root save data (e.g., public int SaveVersion = 1). If you update your data structure later, you can write logic to migrate old saves to the new format.
• Backup Saves: When saving, rename the old save file to savegame_backup.json before writing the new one. This prevents data loss if the save process fails.
• Auto-Save: Implement periodic auto-saves (e.g., every 5 minutes or after a major building action) so players don’t lose progress accidentally.
• Compression (Optional): For larger worlds (though 100x100 doesn’t need it), compress the serialized data before saving to reduce file size.

Why This Works for Your 100x100 World #

A 100x100 grid of the TileSaveData structure above is only ~100KB (even in human-readable JSON format)—way too small to cause any storage or performance issues. All the methods above handle this scale effortlessly.

内容的提问来源于stack exchange，提问作者Levikehh Studios