/// <summary>
/// 生成
/// </summary>
public static SceneTree[] Build(List <SceneTreeSettings> settings, List <MeshCollider> meshColliders)
{
// 检查设置
int settingsObjTypeFlag = 0;
if (!CheckSettings(settings, out settingsObjTypeFlag))
{
return(null);
}
// 收集GameObject并计算包围盒
var gos = (GameObject[])GameObject.FindObjectsOfType <GameObject>();
var items = new List <SceneItem>();
Bounds sceneBounds = new Bounds();
// 检测自动计算场景包围盒
bool bCalculateSceneBound = false;
var ters = GameObject.FindGameObjectsWithTag("Terrain");
if (ters == null || ters.Length <= 0)
{
bCalculateSceneBound = true;
}
var otherColliders = new List <Collider>();
var sb = new StringBuilder();
sb.AppendFormat("Start build {0} items...\n", gos.Length);
for (int i = 0; i < gos.Length; ++i)
{
var go = gos[i];
EditorUtility.DisplayProgressBar(string.Format("Build items({0}/{1})", i + 1, gos.Length), go.name, (float)(i + 1) / gos.Length);
if (UtilityTools.IsEditorOnly(go))
{
continue;
}
// 包围盒
int objTypeFlag = 0;
otherColliders.Clear();
var bounds = GetBounds(go, otherColliders, meshColliders, out objTypeFlag);
if (objTypeFlag == 0)
{
continue;
}
var size = Vector3.Distance(bounds.min, bounds.max);
if (size < MathUtil.fEpsilon)
{
Debug.LogErrorFormat("Invalid bounds of {0}!", go.name);
continue;
}
/// 场景中没有表示地形，自动累计
if (bCalculateSceneBound)
{
sceneBounds.Encapsulate(bounds);
}
else
{
// 使用地形包围盒生成场景包围盒
if (go.CompareTag("Terrain"))
{
go.layer = LayerDefine.Terrain;
if (sceneBounds.size.x < MathUtil.fEpsilon)
{
sceneBounds = bounds;
}
else
{
sceneBounds.Encapsulate(bounds);
}
}
}
// 没有交集
if ((settingsObjTypeFlag & objTypeFlag) == 0)
{
continue;
}
// 加入列表
var item = new SceneItem();
item.go = go;
item.colliders = otherColliders.ToArray();
item.bounds = bounds;
item.radius = size * 0.5f;
item.size = size;
item.objTypeFlag = objTypeFlag;
item.cfg = go.GetComponent <EditorSceneObject>();
items.Add(item);
}
EditorUtility.ClearProgressBar();
sb.Append("Build items complete.");
Debug.Log(sb.ToString());
sb.Length = 0;
var meshColliderCount = meshColliders.Count;
sb.AppendFormat("MeshCollider count is {0}", meshColliderCount);
Debug.Log(sb.ToString());
// 场景包围盒大小为0
if (sceneBounds.size.x < MathUtil.fEpsilon)
{
Debug.LogError("Build scene bounds failed!");
return(null);
}
// 列表
var itemCount = items.Count;
var treeItems = new List <SceneItem> [settings.Count];
for (int i = 0; i < treeItems.Length; ++i)
{
treeItems[i] = new List <SceneItem>();
}
// 把对象分别填充到每棵树的列表中
for (int i = 0, ni = 0, ci = items.Count, cn = ci; i < ci; ++i, ++ni)
{
var item = items[i];
EditorUtility.DisplayProgressBar(string.Format("Insert items to tree({0}/{1})", ni + 1, cn), item.go.name, (float)(ni + 1) / cn);
for (int j = 0, cj = settings.Count; j < cj; ++j)
{
var setting = settings[j];
var list = treeItems[j];
if ((item.objTypeFlag & (1 << (int)setting.objType)) == 0)
{
continue;
}
if (SceneTreeObjType.Renderer == setting.objType)
{
if (null != item.cfg && !string.IsNullOrEmpty(item.cfg.specSceneTree))
{
if (item.cfg.specSceneTree == setting.name)
{
list.Add(item);
items.RemoveAt(i--);
--ci;
break;
}
continue;
}
// 只包含指定名字对象
if (setting.name == "grass")
{
continue;
}
// 大小
if (item.size < setting.maxItemBoundsSize)
{
list.Add(item);
items.RemoveAt(i--);
--ci;
break;
}
continue;
}
// 碰撞体
if (SceneTreeObjType.Collider == setting.objType)
{
list.Add(item);
if (item.objTypeFlag == (1 << (int)setting.objType))
{
items.RemoveAt(i--);
--ci;
}
continue;
}
}
}
EditorUtility.ClearProgressBar();
// 剩下的，放到最后一个节点
if (items.Count > 0)
{
Debug.LogWarningFormat("{0} items can not add to trees!", items.Count);
treeItems[settings.Count - 1].AddRange(items);
items.Clear();
}
// 生成
var trees = new List <SceneTree>();
for (int i = 0; i < treeItems.Length; ++i)
{
var setting = settings[i];
EditorUtility.DisplayProgressBar(string.Format("SplitScene({0}/{1})", i + 1, treeItems.Length), setting.name, (float)(i + 1) / treeItems.Length);
var list = treeItems[i];
if (list.Count < 1)
{
continue;
}
var tree = new SceneTree(setting);
tree.SplitScene(list, sceneBounds);
trees.Add(tree);
}
EditorUtility.ClearProgressBar();
// 打印日志
sb.Length = 0;
var scenePath = EditorApplication.currentScene;
if (string.IsNullOrEmpty(scenePath))
{
scenePath = "Untitled";
}
sb.AppendFormat("Scene build complete. [{0}]\n", scenePath);
sb.Append("---------------------------------------------------------------\n");
sb.AppendFormat("TreeCount[{0}]\n", trees.Count);
sb.AppendFormat("ItemCount[{0}]\n", itemCount);
Debug.Log(sb.ToString());
for (int i = 0; i < trees.Count; ++i)
{
var tree = trees[i];
if (null != tree)
{
tree.LogTreeInfo();
}
}
return(trees.ToArray());
}
