public int loadChunks(int max_to_load) {
if (dw.isLoaded() == false) return 0;
long t0 = System.nanoTime();
Object queue = helper.getUnloadQueue(helper.getNMSWorld(w));
int cnt = 0;
if (iterator == null) iterator = chunks.listIterator();
DynmapCore.setIgnoreChunkLoads(true);
// boolean isnormral = w.getEnvironment() == Environment.NORMAL;
// Load the required chunks.
while ((cnt < max_to_load) && iterator.hasNext()) {
DynmapChunk chunk = iterator.next();
boolean vis = true;
if (visible_limits != null) {
vis = false;
for (VisibilityLimit limit : visible_limits) {
if ((chunk.x >= limit.x0)
&& (chunk.x <= limit.x1)
&& (chunk.z >= limit.z0)
&& (chunk.z <= limit.z1)) {
vis = true;
break;
}
}
}
if (vis && (hidden_limits != null)) {
for (VisibilityLimit limit : hidden_limits) {
if ((chunk.x >= limit.x0)
&& (chunk.x <= limit.x1)
&& (chunk.z >= limit.z0)
&& (chunk.z <= limit.z1)) {
vis = false;
break;
}
}
}
/* Check if cached chunk snapshot found */
ChunkSnapshot ss = null;
DynIntHashMap tileData = null;
SnapshotRec ssr =
DynmapPlugin.plugin.sscache.getSnapshot(
dw.getName(), chunk.x, chunk.z, blockdata, biome, biomeraw, highesty);
if (ssr != null) {
ss = ssr.ss;
if (!vis) {
if (hidestyle == HiddenChunkStyle.FILL_STONE_PLAIN) ss = STONE;
else if (hidestyle == HiddenChunkStyle.FILL_OCEAN) ss = OCEAN;
else ss = EMPTY;
}
int idx = (chunk.x - x_min) + (chunk.z - z_min) * x_dim;
snaparray[idx] = ss;
snaptile[idx] = ssr.tileData;
continue;
}
chunks_attempted++;
boolean wasLoaded = w.isChunkLoaded(chunk.x, chunk.z);
boolean didload = false;
boolean isunloadpending = false;
if (queue != null) {
isunloadpending = helper.isInUnloadQueue(queue, chunk.x, chunk.z);
}
if (isunloadpending) {
/* Workaround: can't be pending if not loaded */
wasLoaded = true;
}
try {
if (!wasLoaded) {
didload = w.loadChunk(chunk.x, chunk.z, false);
} else {
/* If already was loaded, no need to load */
didload = true;
}
} catch (Throwable t) {
/* Catch chunk error from Bukkit */
Log.warning("Bukkit error loading chunk " + chunk.x + "," + chunk.z + " on " + w.getName());
if (!wasLoaded) {
/* If wasn't loaded, we loaded it if it now is */
didload = w.isChunkLoaded(chunk.x, chunk.z);
}
}
boolean didgenerate = false;
/* If we didn't load, and we're supposed to generate, do it */
if ((!didload) && do_generate && vis)
didgenerate = didload = w.loadChunk(chunk.x, chunk.z, true);
/* If it did load, make cache of it */
if (didload) {
tileData = new DynIntHashMap();
Chunk c = w.getChunkAt(chunk.x, chunk.z); /* Get the chunk */
/* Test if chunk isn't populated */
boolean populated = true;
// TODO: figure out why this doesn't appear to be reliable in Bukkit
// if((nmschunk != null) && (doneflag != null)) {
// try {
// populated = doneflag.getBoolean(nmschunk);
// } catch (IllegalArgumentException e) {
// } catch (IllegalAccessException e) {
// }
// }
if (!vis) {
if (hidestyle == HiddenChunkStyle.FILL_STONE_PLAIN) ss = STONE;
else if (hidestyle == HiddenChunkStyle.FILL_OCEAN) ss = OCEAN;
else ss = EMPTY;
} else if (!populated) {
/* If not populated, treat as empty */
ss = EMPTY;
} else {
if (blockdata || highesty) {
ss = c.getChunkSnapshot(highesty, biome, biomeraw);
if (use_spout) {
ss = checkSpoutData(c, ss);
}
/* Get tile entity data */
List<Object> vals = new ArrayList<Object>();
Map tileents = helper.getTileEntitiesForChunk(c);
for (Object t : tileents.values()) {
int te_x = helper.getTileEntityX(t);
int te_y = helper.getTileEntityY(t);
int te_z = helper.getTileEntityZ(t);
int cx = te_x & 0xF;
int cz = te_z & 0xF;
int blkid = ss.getBlockTypeId(cx, te_y, cz);
int blkdat = ss.getBlockData(cx, te_y, cz);
String[] te_fields = HDBlockModels.getTileEntityFieldsNeeded(blkid, blkdat);
if (te_fields != null) {
Object nbtcompound = helper.readTileEntityNBT(t);
vals.clear();
for (String id : te_fields) {
Object val = helper.getFieldValue(nbtcompound, id);
if (val != null) {
vals.add(id);
vals.add(val);
}
}
if (vals.size() > 0) {
Object[] vlist = vals.toArray(new Object[vals.size()]);
tileData.put(getIndexInChunk(cx, te_y, cz), vlist);
}
}
}
} else ss = w.getEmptyChunkSnapshot(chunk.x, chunk.z, biome, biomeraw);
if (ss != null) {
ssr = new SnapshotRec();
ssr.ss = ss;
ssr.tileData = tileData;
DynmapPlugin.plugin.sscache.putSnapshot(
dw.getName(), chunk.x, chunk.z, ssr, blockdata, biome, biomeraw, highesty);
}
}
snaparray[(chunk.x - x_min) + (chunk.z - z_min) * x_dim] = ss;
snaptile[(chunk.x - x_min) + (chunk.z - z_min) * x_dim] = tileData;
/* If wasn't loaded before, we need to do unload */
if (!wasLoaded) {
chunks_read++;
/* It looks like bukkit "leaks" entities - they don't get removed from the world-level table
* when chunks are unloaded but not saved - removing them seems to do the trick */
if (!(didgenerate && do_save)) {
helper.removeEntitiesFromChunk(c);
}
/* Since we only remember ones we loaded, and we're synchronous, no player has
* moved, so it must be safe (also prevent chunk leak, which appears to happen
* because isChunkInUse defined "in use" as being within 256 blocks of a player,
* while the actual in-use chunk area for a player where the chunks are managed
* by the MC base server is 21x21 (or about a 160 block radius).
* Also, if we did generate it, need to save it */
w.unloadChunk(chunk.x, chunk.z, didgenerate && do_save, false);
} else if (isunloadpending) {
/* Else, if loaded and unload is pending */
w.unloadChunkRequest(chunk.x, chunk.z); /* Request new unload */
}
}
cnt++;
}
DynmapCore.setIgnoreChunkLoads(false);
if (iterator.hasNext() == false) {
/* If we're done */
isempty = true;
/* Fill missing chunks with empty dummy chunk */
for (int i = 0; i < snaparray.length; i++) {
if (snaparray[i] == null) snaparray[i] = EMPTY;
else if (snaparray[i] != EMPTY) isempty = false;
}
}
total_loadtime += System.nanoTime() - t0;
return cnt;
}
