public static List<String> processIdRematches(
Iterable<MissingMapping> missedMappings,
boolean isLocalWorld,
GameData gameData,
Map<String, Integer[]> remaps) {
List<String> failed = Lists.newArrayList();
List<String> ignored = Lists.newArrayList();
List<String> warned = Lists.newArrayList();
List<String> defaulted = Lists.newArrayList();
for (MissingMapping remap : missedMappings) {
FMLMissingMappingsEvent.Action action = remap.getAction();
if (action == FMLMissingMappingsEvent.Action.REMAP) {
// block/item re-mapped, finish the registration with the new name/object, but the old id
int currId, newId;
String newName;
if (remap.type == Type.BLOCK) {
currId = getMain().iBlockRegistry.getId((Block) remap.getTarget());
newName = getMain().iBlockRegistry.getNameForObject(remap.getTarget());
FMLLog.fine("The Block %s is being remapped to %s.", remap.name, newName);
newId = gameData.registerBlock((Block) remap.getTarget(), newName, remap.id);
gameData.iBlockRegistry.addAlias(remap.name, newName);
} else {
currId = getMain().iItemRegistry.getId((Item) remap.getTarget());
newName = getMain().iItemRegistry.getNameForObject(remap.getTarget());
FMLLog.fine("The Item %s is being remapped to %s.", remap.name, newName);
newId = gameData.registerItem((Item) remap.getTarget(), newName, remap.id);
gameData.iItemRegistry.addAlias(remap.name, newName);
}
if (newId != remap.id) throw new IllegalStateException();
if (currId != newId) {
FMLLog.info(
"Fixed %s id mismatch %s: %d (init) -> %d (map).",
remap.type == Type.BLOCK ? "block" : "item", newName, currId, newId);
remaps.put(newName, new Integer[] {currId, newId});
}
} else {
// block item missing, warn as requested and block the id
if (action == FMLMissingMappingsEvent.Action.DEFAULT) {
defaulted.add(remap.name);
} else if (action == FMLMissingMappingsEvent.Action.IGNORE) {
ignored.add(remap.name);
} else if (action == FMLMissingMappingsEvent.Action.FAIL) {
failed.add(remap.name);
} else if (action == FMLMissingMappingsEvent.Action.WARN) {
warned.add(remap.name);
}
gameData.block(remap.id); // prevent the id from being reused later
}
}
if (!defaulted.isEmpty()) {
String text =
"Forge Mod Loader detected missing blocks/items.\n\n"
+ "There are "
+ defaulted.size()
+ " missing blocks and items in this save.\n"
+ "If you continue the missing blocks/items will get removed.\n"
+ "A world backup will be automatically created in your saves directory.\n\n"
+ "Missing Blocks/Items:\n";
for (String s : defaulted) text += s + "\n";
boolean confirmed = StartupQuery.confirm(text);
if (!confirmed) StartupQuery.abort();
try {
ZipperUtil.backupWorld();
} catch (IOException e) {
StartupQuery.notify("The world backup couldn't be created.\n\n" + e);
StartupQuery.abort();
}
warned.addAll(defaulted);
}
if (!failed.isEmpty()) {
FMLLog.severe(
"This world contains blocks and items that refuse to be remapped. The world will not be loaded");
return failed;
}
if (!warned.isEmpty()) {
FMLLog.severe("This world contains block and item mappings that may cause world breakage");
return failed;
} else if (!ignored.isEmpty()) {
FMLLog.fine("There were %d missing mappings that have been ignored", ignored.size());
}
return failed;
}
/**
* Fix IDs improperly allocated by early versions of the registry, best-effort.
*
* <p>Items sharing the same ID with a block, but not sharing the same registry name will be
* mapped to an unused id. Losing items instead of blocks should minimize the damage.
*
* @param dataList List containing the IDs to fix
*/
public static void fixBrokenIds(Map<String, Integer> dataList, Set<Integer> blockedIds) {
BitSet availabilityMap = new BitSet(MAX_ITEM_ID + 1);
// reserve all ids occupied by blocks
for (Entry<String, Integer> entry : dataList.entrySet()) {
String itemName = entry.getKey();
@SuppressWarnings("unused")
String realName = itemName.substring(1);
if (itemName.charAt(0) == '\u0001') // is a block
{
availabilityMap.set(entry.getValue());
}
}
Set<Integer> newBlockedIds = new HashSet<Integer>();
Set<String> itemsToRemove = new HashSet<String>();
Map<String, Integer> itemsToRelocate = new HashMap<String, Integer>();
// check all ids occupied by items
for (Entry<String, Integer> entry : dataList.entrySet()) {
String itemName = entry.getKey();
if (itemName.charAt(0) != '\u0001') // is an item
{
int oldId = entry.getValue();
String realName = itemName.substring(1);
String blockName = '\u0001' + realName;
Item item = getMain().iItemRegistry.getRaw(realName);
boolean blockThisId = false; // block oldId unless it's used by a block
if (item == null) // item no longer available
{
// can't fix items without reliably checking if they are ItemBlocks
FMLLog.warning(
"Item %s (old id %d) is no longer available and thus can't be fixed.",
realName, oldId);
itemsToRemove.add(itemName);
blockThisId = true;
} else if (item instanceof ItemBlock) {
if (dataList.containsKey(blockName)) // the item was an ItemBlock before
{
int blockId = dataList.get(blockName);
if (blockId != oldId) // mis-located ItemBlock
{
// relocate to the matching block
FMLLog.warning(
"ItemBlock %s (old id %d) doesn't have the same id as its block (%d).",
realName, oldId, blockId);
itemsToRelocate.put(entry.getKey(), blockId);
blockThisId = true;
} else // intact ItemBlock
{
availabilityMap.set(oldId); // occupy id
}
} else // the item hasn't been an ItemBlock before, but it's now
{
// can't fix these, drop them
FMLLog.warning(
"Item %s (old id %d) has been migrated to an ItemBlock and can't be fixed.",
realName, oldId);
itemsToRemove.add(itemName);
blockThisId = true;
}
} else if (availabilityMap.get(oldId)) // normal item, id is already occupied
{
// remove the item mapping
FMLLog.warning(
"Item %s (old id %d) is conflicting with another block/item and can't be fixed.",
realName, oldId);
itemsToRemove.add(itemName);
} else // intact Item
{
availabilityMap.set(oldId); // occupy id
}
// handle blocking the id from future use if possible (i.e. not used by a conflicting block)
// blockThisId requests don't modify availabilityMap, it could only be set by a block (or
// another item, which isn't being handled)
if (blockThisId && !availabilityMap.get(oldId)) {
// there's no block occupying this id, thus block the id from future use
// as there may still be ItemStacks in the world referencing it
newBlockedIds.add(oldId);
availabilityMap.set(oldId);
}
}
}
if (itemsToRemove.isEmpty() && itemsToRelocate.isEmpty()) return; // nothing to do
// confirm
String text =
"Forge Mod Loader detected that this save is damaged.\n\n"
+ "It's likely that an automatic repair can successfully restore\n"
+ "most of it, except some items which may get swapped with others.\n\n"
+ "A world backup will be created as a zip file in your saves\n"
+ "directory automatically.\n\n"
+ itemsToRemove.size()
+ " items need to be removed.\n"
+ itemsToRelocate.size()
+ " items need to be relocated.";
boolean confirmed = StartupQuery.confirm(text);
if (!confirmed) StartupQuery.abort();
// confirm missing mods causing item removal
Set<String> modsMissing = new HashSet<String>();
for (String itemName : itemsToRemove) {
modsMissing.add(itemName.substring(1, itemName.indexOf(':')));
}
for (Iterator<String> it = modsMissing.iterator(); it.hasNext(); ) {
String mod = it.next();
if (mod.equals("minecraft") || Loader.isModLoaded(mod)) it.remove();
}
if (!modsMissing.isEmpty()) {
text =
"Forge Mod Loader detected that "
+ modsMissing.size()
+ " mods are missing.\n\n"
+ "If you continue items previously provided by those mods will be\n"
+ "removed while repairing this world save.\n\n"
+ "Missing mods:\n";
for (String mod : modsMissing) text += mod + "\n";
confirmed = StartupQuery.confirm(text);
if (!confirmed) StartupQuery.abort();
}
// backup
try {
ZipperUtil.backupWorld();
} catch (IOException e) {
StartupQuery.notify("The world backup couldn't be created.\n\n" + e);
StartupQuery.abort();
}
// apply fix
for (String itemName : itemsToRemove) {
int id = dataList.remove(itemName);
FMLLog.warning("Removed Item %s, old id %d.", itemName.substring(1), id);
}
for (Map.Entry<String, Integer> entry : itemsToRelocate.entrySet()) {
String itemName = entry.getKey();
int newId = entry.getValue();
int oldId = dataList.put(itemName, newId);
FMLLog.warning("Remapped Item %s to id %d, old id %d.", itemName.substring(1), newId, oldId);
}
blockedIds.addAll(newBlockedIds);
}