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Big performance boost - exploit empty section data, max block y in ray trace

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This commit is contained in:
Mike Primm 2012-03-03 09:33:07 -06:00
parent 0e97fedd6b
commit a41e052f51
1 changed files with 11 additions and 7 deletions
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18
src/main/java/org/dynmap/bukkit/NewMapChunkCache.java
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@ -37,6 +37,7 @@ public class NewMapChunkCache implements MapChunkCache {
private World w;
private DynmapWorld dw;
private Object craftworld;
private int nsect;
private List<DynmapChunk> chunks;
private ListIterator<DynmapChunk> iterator;
private int x_min, x_max, z_min, z_max;
@ -548,6 +549,7 @@ public class NewMapChunkCache implements MapChunkCache {
public void setChunks(BukkitWorld dw, List<DynmapChunk> chunks) {
this.dw = dw;
this.w = dw.getWorld();
nsect = dw.worldheight >> 4;
if((getworldhandle != null) && (craftworld == null)) {
try {
craftworld = getworldhandle.invoke(w); /* World.getHandle() */
@ -794,7 +796,7 @@ public class NewMapChunkCache implements MapChunkCache {
return ss.getRawBiomeRainfall(x & 0xF, z & 0xF);
}
private void initSectionData(int idx) {
isSectionNotEmpty[idx] = new boolean[w.getMaxHeight() >> 4];
isSectionNotEmpty[idx] = new boolean[nsect + 1];
int maxy = 0;
if(snaparray[idx] != EMPTY) {
/* Get max height */
@ -803,19 +805,20 @@ public class NewMapChunkCache implements MapChunkCache {
maxy = Math.max(maxy, snaparray[idx].getHighestBlockYAt(i, j));
}
}
for(int i = 0; i < isSectionNotEmpty[idx].length; i++) {
if((i << 4) < maxy) { /* Below top? */
maxy = (maxy-1) >> 4;
for(int i = 0; i <= nsect; i++) {
if(i <= 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;
public boolean isEmptySection(int sx, int sy, int sz) {
int idx = (sx - x_min) + (sz - z_min) * x_dim;
if(isSectionNotEmpty[idx] == null) {
initSectionData(idx);
}
return isSectionNotEmpty[idx][y >> 4];
return !isSectionNotEmpty[idx][sy];
}
/**
@ -893,7 +896,8 @@ public class NewMapChunkCache implements MapChunkCache {
public boolean setChunkDataTypes(boolean blockdata, boolean biome, boolean highestblocky, boolean rawbiome) {
this.biome = biome;
this.biomeraw = rawbiome;
this.highesty = highestblocky;
//this.highesty = highestblocky;
this.highesty = true;
this.blockdata = blockdata;
return true;
}