unity3d 随机物体生成器工具

根据输入的物体生成随机成组的物体.

  1 /// <summary>
  2 /// 本脚本可以由输入的预制 生成以本物体为中心的随机预制,支持预制打组
  3 /// 随机物体生成器(尤其试用于场景中静态物体随机摆放)
  4 /// </summary>
  5 using UnityEngine;
  6 using System.Collections;
  7 using System.Collections.Generic;
  8 
  9 public class PrefabMixer : MonoBehaviour
 10 {
 11     [Tooltip("输入预制")]
 12     public GameObject[]
 13         inputPrefabs;
 14     [Tooltip("生成多少组")]
 15     public int
 16         maxGroupsNum = 3;
 17     [Tooltip("每组最多的个数")]
 18     public int
 19         maxEachGroupsNum = 5;
 20     [Tooltip("距离中心的距离")]
 21     public float
 22         distanceToSpawn = 50f;
 23     [Tooltip("缩放范围")]
 24     public float
 25         scaleToSpawn = 5f;
 26 
 27     //一共生成多少组
 28     public List<Transform> asteroidsGroupList = new List<Transform> ();
 29     //生成的陨石总数
 30     private List<Transform> asteroidsList = new List<Transform> ();
 31 
 32     private Transform _cacheTransform;
 33 
 34     void OnEnable ()
 35     {
 36         ResetList ();
 37         _cacheTransform = transform;
 38         Debug.Log("Cache Transform !!");
 39     }
 40     
 41     void OnDisable ()
 42     {
 43         ResetList ();
 44     }
 45 
 46     public void GenerateAsteroids ()
 47     {
 48         if (inputPrefabs == null || inputPrefabs.Length <= 0)
 49         {
 50             Debug.LogError ("预制不能为空哦 !");
 51             return;
 52         }
 53 
 54         if(_cacheTransform == null)
 55         {
 56             _cacheTransform = transform;
 57         }
 58 
 59         int tempMap = 0;
 60         ResetList ();
 61         //按组数来判断
 62         while (asteroidsGroupList.Count < maxGroupsNum) {
 63 
 64             Transform o = new GameObject ("AsteroidsMap_" + tempMap ++).transform;
 65             o.localPosition = _cacheTransform.position;
 66             o.localRotation = Quaternion.identity;
 67             o.localScale = Vector3.one;
 68             if(o.GetComponent<RotateSelf>() == null)
 69                 o.gameObject.AddComponent<RotateSelf>();
 70             o.GetComponent<RotateSelf>().speed = Random.Range(1,5f);
 71 
 72 
 73             for (int i = 0; i<Random.Range(1,maxEachGroupsNum + 1); i++) {
 74                 if (GetRandomPrefab () == null)
 75                     continue;
 76                 GameObject asteroid = Instantiate (GetRandomPrefab ()) as GameObject;
 77                 asteroid.transform.parent = o.transform;
 78                 asteroid.name = "asteroid_" + GetRandomPrefab ().name + "_" + i;
 79                 asteroid.transform.localRotation = Quaternion.Euler (Random.Range (0, 360), Random.Range (0, 360), Random.Range (0, 360));
 80                 asteroid.transform.localPosition = Random.insideUnitSphere * distanceToSpawn;
 81                 asteroid.transform.localScale = new Vector3 (Random.Range (1, scaleToSpawn), Random.Range (1, scaleToSpawn), Random.Range (1, scaleToSpawn));
 82 
 83             }
 84             asteroidsGroupList.Add (o);
 85         }
 86     }
 87 
 88     public void ResetList ()
 89     {
 90         for (int i = 0; i < asteroidsGroupList.Count && asteroidsGroupList.Count > 0; i++) {
 91             if(asteroidsGroupList [i] == null)
 92                 continue;
 93 //            #if UNITY_3_5
 94 //            asteroidsGroupList[i].gameObject.active = false;        
 95 //            #endif
 96 //            asteroidsGroupList [i].gameObject.SetActive (false);
 97             DestroyImmediate(asteroidsGroupList [i].gameObject);
 98 
 99         }
100 
101         if (asteroidsGroupList.Count > 0)
102             asteroidsGroupList.Clear ();
103     }
104 
105     GameObject GetRandomPrefab ()
106     {
107         if (inputPrefabs != null && inputPrefabs.Length > 0)
108             return inputPrefabs [Random.Range (0, inputPrefabs.Length)];
109         return null;
110     }
111     
112 }

 1 /// <summary>
 2 /// Prefab mixer editor.
 3 /// </summary>
 4 using UnityEditor;
 5 using UnityEngine;
 6 using System.Collections.Generic;
 7 
 8 [CustomEditor(typeof(PrefabMixer))]
 9 public class PrefabMixerEditor : Editor {
10     SerializedObject myTarget;
11     
12     SerializedProperty maxEachGroupsNum;
13     SerializedProperty maxGroupsNum;
14     SerializedProperty distanceToSpawn;
15     SerializedProperty scaleToSpawn;
16     SerializedProperty GenerateAsteroids;
17 //    SerializedProperty asteroidsGroupList;
18 
19 
20     PrefabMixer prefabMixer;
21     private List<Transform> asteroidsGroupList = new List<Transform> ();
22 
23     void OnEnable()
24     {
25         myTarget = new SerializedObject(target);
26 
27         maxGroupsNum = myTarget.FindProperty("maxGroupsNum");
28         maxEachGroupsNum = myTarget.FindProperty("maxEachGroupsNum");
29         distanceToSpawn = myTarget.FindProperty("distanceToSpawn");
30         scaleToSpawn = myTarget.FindProperty("scaleToSpawn");
31 //        asteroidsGroupList = myTarget.FindProperty("asteroidsGroupList");
32 
33         //获得实例
34         prefabMixer = target as PrefabMixer;
35         asteroidsGroupList = prefabMixer.asteroidsGroupList;
36 
37     }
38         
39     private bool _showPrefabs = true;
40 
41     public override void OnInspectorGUI()
42     {
43         myTarget.Update();        
44 
45         EditorGUILayout.Separator();
46             
47         _showPrefabs = EditorGUILayout.Foldout(_showPrefabs, "单个预制");
48         EditorGUIUtility.LookLikeInspector();
49         if (_showPrefabs) {
50             ArrayGUI(myTarget, "inputPrefabs");                
51         }        
52         EditorGUIUtility.LookLikeControls();    
53 
54         EditorGUILayout.Separator();
55 
56         maxGroupsNum.intValue = EditorGUILayout.IntSlider("生成多少组", maxGroupsNum.intValue, 1, 1000);
57         EditorGUILayout.Separator();
58 
59         maxEachGroupsNum.intValue = EditorGUILayout.IntSlider("每组最多的个数", maxEachGroupsNum.intValue, 1, 100);
60         EditorGUILayout.Separator();
61 
62         distanceToSpawn.floatValue = EditorGUILayout.Slider("距离中心的距离", distanceToSpawn.floatValue, 1f, 100f);
63         EditorGUILayout.Separator();
64 
65         scaleToSpawn.floatValue = EditorGUILayout.Slider("缩放范围", scaleToSpawn.floatValue, 1f, 10f);
66         EditorGUILayout.Separator();
67 
68         if(GUILayout.Button("生成"))
69         {
70             prefabMixer.GenerateAsteroids();
71         }
72         EditorGUILayout.Separator();
73 
74         if(GUILayout.Button("清空"))
75         {
76             prefabMixer.ResetList();
77         }
78         EditorGUILayout.Separator();
79 
80         myTarget.ApplyModifiedProperties();
81     }
82 
83 
84     void ArrayGUI(SerializedObject obj, string name) {    
85         int size = obj.FindProperty(name + ".Array.size").intValue;
86         int newSize = EditorGUILayout.IntField("数量", size);
87         if (newSize != size) obj.FindProperty(name + ".Array.size").intValue = newSize;
88         EditorGUI.indentLevel = 3;
89         for (int i=0;i<newSize;i++) {
90             var prop = obj.FindProperty(string.Format("{0}.Array.data[{1}]", name, i));
91             EditorGUILayout.PropertyField(prop);    
92         }
93         EditorGUI.indentLevel = 0;
94     }    
95 }