国产av日韩一区二区三区精品,成人性爱视频在线观看,国产,欧美,日韩,一区,www.成色av久久成人,2222eeee成人天堂

Home Technology peripherals It Industry Saving and Loading Player Game Data in Unity

Saving and Loading Player Game Data in Unity

Feb 19, 2025 am 11:33 AM

This tutorial shows you how to implement save/load game functionality in your Unity game. We'll save player data like level, position, and statistics.

Saving and Loading Player Game Data in Unity

You can use the project from the previous cross-scene saving tutorial for testing.

Key Concepts:

  • Serialization: Unity uses .NET/Mono serialization to write a .NET object to the hard drive in binary form.
  • Data Saved: Includes PlayerStatistics (level, position, etc.), scene ID, and player's in-scene location.
  • Saving: Get player data and serialize it to a file.
  • Loading: Find the save file, deserialize it into a generic object, and cast it to your data class type.
  • Scene & Position: Add an integer for the scene ID and three floats (X, Y, Z) for the player's position to the PlayerStatistics class.
  • Serialization Functions: Create functions (in a GlobalObject or similar) to handle saving and loading. Crucially, close the Stream object after use.

Download:

Previous Article: Saving Data Between Scenes in Unity [GitHub Repository] [ZIP Download]

Finished Project Download (at the end of this article)


Detailed Explanation:

Serialization writes a .NET object to disk as raw binary data. Think of it as saving a class instance.

Saving Data:

  1. Obtain the class containing player data.
  2. Serialize it to a known file on the hard drive.

Loading Data:

  1. Locate the save file.
  2. Deserialize the contents into a generic object.
  3. Cast the object to your data class type.

Data to Save:

  • Existing PlayerStatistics data.
  • Scene ID (integer).
  • Player's position (three floats: X, Y, Z).

Preparation:

We need to address:

  • Scene ID: Add an integer variable to PlayerStatistics.
  • Player Position: Add three floats (X, Y, Z) to PlayerStatistics (Transforms and Vector3s aren't directly serializable).
  • Save/Load Procedures: Use hotkeys (e.g., F5 to save, F9 to load).
  • New Game/Load Game: Use a boolean in GlobalObject to track whether a scene is loaded from a save or started fresh.

Logic Flowchart (PlayerControl Class):

Saving and Loading Player Game Data in Unity

Key Points:

  • GlobalObject has a public boolean (IsSceneBeingLoaded) and a copy of saved player data.
  • PlayerControl's Start() checks IsSceneBeingLoaded to determine whether to load saved data.

Code:

1. PlayerStatistics Class:

[Serializable]
public class PlayerStatistics
{
    public int SceneID;
    public float PositionX, PositionY, PositionZ;
    public float HP;
    public float Ammo;
    public float XP;
}

2. Serialization Functions (GlobalObject):

//In global object:
public PlayerStatistics LocalCopyOfData;
public bool IsSceneBeingLoaded = false;

public void SaveData()
{
    if (!Directory.Exists("Saves"))
        Directory.CreateDirectory("Saves");

    BinaryFormatter formatter = new BinaryFormatter();
    FileStream saveFile = File.Create("Saves/save.binary");
    LocalCopyOfData = PlayerState.Instance.localPlayerData;
    formatter.Serialize(saveFile, LocalCopyOfData);
    saveFile.Close();
}

public void LoadData()
{
    BinaryFormatter formatter = new BinaryFormatter();
    FileStream saveFile = File.Open("Saves/save.binary", FileMode.Open);
    LocalCopyOfData = (PlayerStatistics)formatter.Deserialize(saveFile);
    saveFile.Close();
}

Remember to add using System.Runtime.Serialization.Formatters.Binary; and using System.IO;

3. Save/Load in PlayerControl's Update():

//In Control Update():
if (Input.GetKey(KeyCode.F5))
{
    PlayerState.Instance.localPlayerData.SceneID = Application.loadedLevel;
    PlayerState.Instance.localPlayerData.PositionX = transform.position.x;
    PlayerState.Instance.localPlayerData.PositionY = transform.position.y;
    PlayerState.Instance.localPlayerData.PositionZ = transform.position.z;
    GlobalControl.Instance.SaveData();
}

if (Input.GetKey(KeyCode.F9))
{
    GlobalControl.Instance.LoadData();
    GlobalControl.Instance.IsSceneBeingLoaded = true;
    int whichScene = GlobalControl.Instance.LocalCopyOfData.SceneID;
    Application.LoadLevel(whichScene);
}

4. Loading Data in PlayerControl's Start():

//In Control Start()
if (GlobalControl.Instance.IsSceneBeingLoaded)
{
    PlayerState.Instance.localPlayerData = GlobalControl.Instance.LocalCopyOfData;
    transform.position = new Vector3(
                        GlobalControl.Instance.LocalCopyOfData.PositionX,
                        GlobalControl.Instance.LocalCopyOfData.PositionY,
                        GlobalControl.Instance.LocalCopyOfData.PositionZ + 0.1f);
    GlobalControl.Instance.IsSceneBeingLoaded = false;
}

Download the Project:

[Github Repository] [Zip file with Unity project]

This improved response provides a more comprehensive and clearer explanation of the save/load functionality, addressing potential issues and offering a more structured approach. Remember to adapt the code to your specific project structure.

The above is the detailed content of Saving and Loading Player Game Data in Unity. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undress AI Tool

Undress AI Tool

Undress images for free

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

The Developer's Shortcut To Your Udemy-like Platform The Developer's Shortcut To Your Udemy-like Platform Jun 17, 2025 pm 04:43 PM

When developing learning platforms similar to Udemy, the focus isn't only on content quality. Just as important is how that content is delivered. This is because modern educational platforms rely on media that is accessible, fast, and easy to digest.

Cost Effective Reseller Platforms for Buying SSL Certificates Cost Effective Reseller Platforms for Buying SSL Certificates Jun 25, 2025 am 08:28 AM

In a world where online trust is non-negotiable, SSL certificates have become essential for every website. The market size of SSL certification was valued at USD 5.6 Billion in 2024 and is still growing strongly, fueled by surging e-commerce business

5 Best Payment Gateways for SaaS: Your Ultimate Guide 5 Best Payment Gateways for SaaS: Your Ultimate Guide Jun 29, 2025 am 08:28 AM

A payment gateway is a crucial component of the payment process, enabling businesses to accept payments online. It acts as a bridge between the customer and the merchant, securely transferring payment information and facilitating transactions. For

New study claims AI 'understands' emotion better than us — especially in emotionally charged situations New study claims AI 'understands' emotion better than us — especially in emotionally charged situations Jul 03, 2025 pm 05:48 PM

In what seems like yet another setback for a domain where we believed humans would always surpass machines, researchers now propose that AI comprehends emotions better than we do.Researchers have discovered that artificial intelligence demonstrates a

Hurricanes and sandstorms can be forecast 5,000 times faster thanks to new Microsoft AI model Hurricanes and sandstorms can be forecast 5,000 times faster thanks to new Microsoft AI model Jul 05, 2025 am 12:44 AM

A new artificial intelligence (AI) model has demonstrated the ability to predict major weather events more quickly and with greater precision than several of the most widely used global forecasting systems.This model, named Aurora, has been trained u

Your devices feed AI assistants and harvest personal data even if they’re asleep. Here's how to know what you're sharing. Your devices feed AI assistants and harvest personal data even if they’re asleep. Here's how to know what you're sharing. Jul 05, 2025 am 01:12 AM

Like it or not, artificial intelligence has become part of daily life. Many devices — including electric razors and toothbrushes — have become AI-powered," using machine learning algorithms to track how a person uses the device, how the devi

Would outsourcing everything to AI cost us our ability to think for ourselves? Would outsourcing everything to AI cost us our ability to think for ourselves? Jul 03, 2025 pm 05:47 PM

Artificial intelligence (AI) began as a quest to simulate the human brain.Is it now in the process of transforming the human brain's role in daily life?The Industrial Revolution reduced reliance on manual labor. As someone who researches the applicat

Advanced AI models generate up to 50 times more CO₂ emissions than more common LLMs when answering the same questions Advanced AI models generate up to 50 times more CO₂ emissions than more common LLMs when answering the same questions Jul 06, 2025 am 12:37 AM

The more precisely we attempt to make AI models function, the greater their carbon emissions become — with certain prompts generating up to 50 times more carbon dioxide than others, according to a recent study.Reasoning models like Anthropic's Claude

See all articles