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Implement basic sky lighting for chunks with broken lighting

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(forge,fabric)
This commit is contained in:
Mike Primm 2021-12-24 20:38:05 -06:00
parent 05819b1b74
commit 3a3a970883
12 changed files with 197 additions and 219 deletions
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30
DynmapCore/src/main/java/org/dynmap/common/chunk/GenericChunk.java
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@ -119,23 +119,31 @@ public class GenericChunk {
int sky[] = new int[256]; // ZX array
Arrays.fill(sky, 15); // Start fully lit at top
GenericChunkSection.Builder bld = new GenericChunkSection.Builder();
boolean allzero = false;
// Make light array for each section, start from top
for (int i = (sections.length - 1); i >= 0; i--) {
if (sections[i] == null) continue;
byte[] ssky = new byte[2048];
for (int x = 0; x < 16; x++) {
for (int z = 0; z < 16; z++) {
int idx = (z << 4) + x;
for (int y = 15; y >= 0; y--) {
DynmapBlockState bs = sections[i].blocks.getBlock(x, y, z); // Get block
int atten = bs.lightAttenuation;
sky[idx] = (sky[idx] > atten) ? (sky[idx] - atten) : 0;
ssky[(y << 7) | (z << 3) | (x >> 1)] |= (sky[idx] << (4 * (x & 1)));
byte[] ssky = new byte[2048];
if (!allzero) {
for (int x = 0; x < 16; x++) {
for (int z = 0; z < 16; z++) {
int idx = (z << 4) + x;
for (int y = 15; y >= 0; y--) {
DynmapBlockState bs = sections[i].blocks.getBlock(x, y, z); // Get block
int atten = bs.getLightAttenuation();
sky[idx] = (sky[idx] >= atten) ? (sky[idx] - atten) : 0;
ssky[(y << 7) | (z << 3) | (x >> 1)] |= (sky[idx] << (4 * (x & 1)));
}
}
}
// Check if we're all dark
allzero = true;
for (int v = 0; v < 256; v++) {
if (sky[v] > 0) { allzero = false; break; }
}
}
// Replace section with new one with new lighting
sections[i] = bld.buildFrom(sections[i], ssky);
// Replace section with new one with new lighting
sections[i] = bld.buildFrom(sections[i], ssky);
}
return this;
}