[Unity] シンプルにボタンを作ってみる 続き

 1using UnityEditor;
 2using UnityEngine;
 3using UnityEngine.UI;
 4
 5public class SampleInit 
 6{
 7    [UnityEditor.MenuItem("Tool/InitScene")]
 8    public static void InitScene()
 9    {
10        var goCanvas = GameObject.Find("Canvas");
11        GameObject.DestroyImmediate(goCanvas);
12
13        EditorApplication.ExecuteMenuItem("GameObject/UI/Button");
14        var templateButton = GameObject.Find("Button"); // ExecuteMenuItemで作成されたボタン
15        goCanvas = GameObject.Find("Canvas");
16        // メニューゲームオブジェクトを作成
17        var goMenu = new GameObject("Menu");
18        goMenu.transform.SetParent(goCanvas.transform);
19        goMenu.transform.localPosition = Vector3.zero;
20        goMenu.AddComponent<Menu>();
21        
22        string[] buttonNames = {
23            "MenuItemClose",    // 閉じるボタン
24            "MenuItemNext" ,    // 次へボタン
25            "MenuItemUse",      // 使うボタン
26        };
27        Vector2[] buttonPositions = {
28            new Vector2(-200, 0),
29            new Vector2(   0, 0),
30            new Vector2( 200, 0),
31        };
32        for (int i = 0; i < buttonPositions.Length; i++)
33        {
34            // MenuItem
35            var goMenuItem = new GameObject(buttonNames[i]);
36            var menuItem = goMenuItem.AddComponent<MenuItem>();
37            menuItem.buttonName = buttonNames[i];
38            goMenuItem.transform.SetParent(goMenu.transform);
39            goMenuItem.transform.localPosition = Vector2.zero;
40
41            // ボタン
42            var goButton = GameObject.Instantiate(templateButton, Vector3.zero, Quaternion.identity);
43            var button = goButton.GetComponent<Button>();
44            button.transform.SetParent(goMenuItem.transform);
45            button.transform.localPosition = buttonPositions[i];
46            button.name = buttonNames[i] + "Button";
47            var textComp = button.GetComponentInChildren<Text>();
48            textComp.text = buttonNames[i];
49        }
50        
51        GameObject.DestroyImmediate(templateButton); // コピー用オブジェクトを削除
52    }
53}

1using UnityEngine;
2
3public class MenuItem : MonoBehaviour
4{
5    public string buttonName;
6}
7view rawMenuItem.cs hosted with ❤ by GitHub

 1using UnityEngine;
 2
 3public class Menu : MonoBehaviour
 4{
 5    public void OnClick(MenuItem menuItem)
 6    {
 7        switch (menuItem.buttonName)
 8        {
 9            case "MenuItemClose":   // 閉じる
10                Debug.Log("clicked close.");
11                break;
12            case "MenuItemNext":    // 次のページ
13                Debug.Log("clicked next.");
14                break;
15            case "MenuItemUse":     // アイテムの使用
16                Debug.Log("clicked item use.");
17                break;
18        }
19    }
20}