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Add section empty methods

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Mike Primm 2012-02-16 22:45:34 -06:00
parent 63a638f96e
commit 2e2fbec8f9
1 changed files with 34 additions and 0 deletions
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34
src/main/java/org/dynmap/bukkit/NewMapChunkCache.java
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@ -51,6 +51,7 @@ public class NewMapChunkCache implements MapChunkCache {
private ChunkSnapshot[] snaparray; /* Index = (x-x_min) + ((z-z_min)*x_dim) */
private byte[][] swampcnt;
private BiomeMap[][] biomemap;
private boolean[][] isSectionNotEmpty; /* Indexed by snapshot index, then by section index */
private int chunks_read; /* Number of chunks actually loaded */
private int chunks_attempted; /* Number of chunks attempted to load */
@ -118,6 +119,8 @@ public class NewMapChunkCache implements MapChunkCache {
return snap.getBlockEmittedLight(bx, y, bz);
}
private void biomePrep() {
if(swampcnt != null)
return;
int x_size = x_dim << 4;
int z_size = (z_max - z_min + 1) << 4;
swampcnt = new byte[x_size][];
@ -351,6 +354,12 @@ public class NewMapChunkCache implements MapChunkCache {
public long getBlockKey() {
return (((chunkindex * worldheight) + y) << 8) | (bx << 4) | bz;
}
@Override
public final boolean isEmptySection() {
if(isSectionNotEmpty[chunkindex] == null)
initSectionData(chunkindex);
return !isSectionNotEmpty[chunkindex][y >> 4];
}
}
private class OurEndMapIterator extends OurMapIterator {
@ -571,6 +580,7 @@ public class NewMapChunkCache implements MapChunkCache {
}
snaparray = new ChunkSnapshot[x_dim * (z_max-z_min+1)];
isSectionNotEmpty = new boolean[x_dim * (z_max-z_min+1)][];
}
private ChunkSnapshot checkSpoutData(Chunk c, ChunkSnapshot ss) {
@ -783,6 +793,30 @@ public class NewMapChunkCache implements MapChunkCache {
ChunkSnapshot ss = snaparray[((x>>4) - x_min) + ((z>>4) - z_min) * x_dim];
return ss.getRawBiomeRainfall(x & 0xF, z & 0xF);
}
private void initSectionData(int idx) {
isSectionNotEmpty[idx] = new boolean[w.getMaxHeight() >> 16];
int maxy = 0;
if(snaparray[idx] != EMPTY) {
/* Get max height */
for(int i = 0; i < 16; i++) {
for(int j = 0; j < 16; j++) {
maxy = Math.max(maxy, snaparray[idx].getHighestBlockYAt(i, j));
}
}
for(int i = 0; i < isSectionNotEmpty[idx].length; i++) {
if((i << 4) < maxy) { /* Below top? */
isSectionNotEmpty[idx][i] = true;
}
}
}
}
public boolean isEmptySection(int x, int y, int z) {
int idx = ((x>>4) - x_min) + ((z>>4) - z_min) * x_dim;
if(isSectionNotEmpty[idx] == null) {
initSectionData(idx);
}
return isSectionNotEmpty[idx][y >> 4];
}
/**
* Get cache iterator