void DoUpgrade()
{
var targets = m_MaterialEditor.targets.Where(e => e is Material).Cast <Material>().ToArray();
for (int i = 0; m_tags != null && i < m_tags.Count; ++i)
{
var tagdef = m_tags[i];
if (!String.IsNullOrEmpty(tagdef.upgradeTypename))
{
var typename = tagdef.typename;
tagdef.upgradeState = tagdef.upgradeState ?? new Dictionary <Material, UpgradeOPType>();
var opState = tagdef.upgradeState;
for (int mi = 0; mi < targets.Length; ++mi)
{
var mat = targets[mi];
UpgradeOPType curOp;
if (opState.TryGetValue(mat, out curOp) && curOp == UpgradeOPType.None)
{
// 已经处理过了
continue;
}
var value = mat.GetTag(typename, true);
if (tagdef.upgradeOPType != UpgradeOPType.None)
{
if (tagdef.upgradeOPType == UpgradeOPType.Cut && tagdef.removeAble == false && IsOptionNone(value))
{
// 剪切模式下，要升级的类型值已经用空值覆盖，跳过处理
// 这会导致一个问题就是：如果一个没有升级的Tag，但是其值原本就是空，
// 这样会导致这个状态不会被拷贝到需要升级的目标中去
opState[mat] = UpgradeOPType.None;
continue;
}
var upgradeTypename = tagdef.upgradeTypename;
var upgradeType = m_tags.Find(item => item.typename == upgradeTypename);
if (!String.IsNullOrEmpty(value) && upgradeType != null)
{
UpgradeTag(mat, tagdef, upgradeType);
}
continue;
}
// value 可能为空字符串，也可能是表示空的有效字符串如'None'
var index = Array.IndexOf(tagdef.values, value);
var newIndex = index;
var fixTag = false;
if (index == -1)
{
if (tagdef.builtin)
{
// 系统tag，如果当前tag值没在选项中，追加
if (!String.IsNullOrEmpty(value))
{
Array.Resize(ref tagdef.values, tagdef.values.Length + 1);
tagdef.values[tagdef.values.Length - 1] = value;
newIndex = tagdef.values.Length - 1;
}
}
else
{
newIndex = 0;
if (!IsNullTagValue(value))
{
// 非空值，没有在选项中找到，当作一次修复操作，需要提示用户
fixTag = true;
}
}
}
if (newIndex >= 0 && newIndex != index)
{
if (!tagdef.readOnly)
{
_SetOverrideTag(mat, typename, tagdef.values[newIndex], fixTag);
}
}
}
}
}
// tag清理
var tagMap = new Dictionary <String, String>();
for (int i = 0; i < targets.Length; ++i)
{
var target = targets[i];
if (ShaderGUIHelper.GetMaterialOverrideTags(target, ref tagMap))
{
foreach (var tag in tagMap)
{
var def = m_tags.Find(e => e.typename == tag.Key);
if (def == null && Array.IndexOf(BuiltinTags, tag.Key) < 0)
{
// 材质中有编辑器未定义的tag
var removeAble = ShaderGUIHelper.IsTagRemoveable(target, tag.Key);
if (removeAble != null && removeAble.Value)
{
target.SetOverrideTag(tag.Key, String.Empty);
Debug.LogFormat("Remove Override Tag: {0}", tag.Key);
EditorUtility.SetDirty(target);
}
}
}
}
}
}