Unity 6 × Cursor ── C# 生成と prefab バイナリ問題の付き合い方

# 1. Cursor をインストール (https://cursor.com/)# 2. Unity の External Tools を Cursor に設定:#    Unity → Preferences → External Tools → External Script Editor → Cursor# 3. Cursor 側で C# 拡張をインストール (Unity の OmniSharp / C# Dev Kit)# 4. プロジェクトを開く: File → Open Folder → /path/to/UnityProject
# Claude を統合 (Cursor は GPT/Claude 切替可、設定で Claude Opus を選択)

using UnityEngine;
[RequireComponent(typeof(Rigidbody2D))]public class PlayerController : MonoBehaviour{    [SerializeField] private float speed = 5f;    [SerializeField] private float jumpForce = 12f;    [SerializeField] private LayerMask groundLayer;    [SerializeField] private Transform groundCheck;
    private Rigidbody2D rb;    private Animator animator;    private bool isGrounded;
    void Awake()    {        rb = GetComponent<Rigidbody2D>();        animator = GetComponent<Animator>();    }
    void Update()    {        // 接地判定        isGrounded = Physics2D.OverlapCircle(groundCheck.position, 0.2f, groundLayer);
        // 横移動        float horizontal = Input.GetAxisRaw("Horizontal");        rb.linearVelocity = new Vector2(horizontal * speed, rb.linearVelocity.y);
        if (horizontal != 0)        {            transform.localScale = new Vector3(Mathf.Sign(horizontal), 1, 1);            animator.SetBool("Running", true);        }        else        {            animator.SetBool("Running", false);        }
        // ジャンプ        if (Input.GetButtonDown("Jump") && isGrounded)        {            rb.linearVelocity = new Vector2(rb.linearVelocity.x, jumpForce);        }    }}

using UnityEngine;
[CreateAssetMenu(fileName = "Enemy", menuName = "GameData/Enemy")]public class EnemyData : ScriptableObject{    public string enemyName;    public int maxHp;    public float moveSpeed;    public int attackPower;    public Sprite icon;    public AudioClip deathSound;}
// 使い方: Editor で右クリック → Create → GameData → Enemy// 生成された .asset は YAML テキストなので Claude が読み書きできる

using UnityEditor;using UnityEngine;
public class Build{    [MenuItem("Build/Build All")]    public static void BuildAll()    {        var scenes = new[] { "Assets/Scenes/Main.unity" };        BuildPipeline.BuildPlayer(scenes, "Build/Game.app",            BuildTarget.StandaloneOSX, BuildOptions.None);    }}
// CLI: Unity -batchmode -quit -projectPath . -executeMethod Build.BuildAll