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Fixed recursive/reentrant chunk generation caused by lush caves, closes #275 (#294)

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Bartosz Skrzypczak 2016-10-19 18:51:07 +02:00 committed by Ellpeck
parent 957bd16fe3
commit b90c04c248
2 changed files with 47 additions and 15 deletions
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24
src/main/java/de/ellpeck/actuallyadditions/mod/gen/OreGen.java
View file

@ -30,6 +30,7 @@ import net.minecraft.world.biome.BiomeOcean;
import net.minecraft.world.chunk.IChunkGenerator;
import net.minecraft.world.chunk.IChunkProvider;
import net.minecraft.world.gen.feature.WorldGenMinable;
import net.minecraft.world.gen.structure.StructureBoundingBox;
import net.minecraftforge.common.MinecraftForge;
import net.minecraftforge.event.terraingen.DecorateBiomeEvent;
import net.minecraftforge.fml.common.IWorldGenerator;
@ -59,19 +60,32 @@ public class OreGen implements IWorldGenerator{
int dimension = world.provider.getDimension();
if(dimension != -1 && dimension != 1){
if(world.getWorldType() != WorldType.FLAT && !ArrayUtils.contains(ConfigIntListValues.ORE_GEN_DIMENSION_BLACKLIST.getValue(), world.provider.getDimension())){
this.generateDefault(world, random, chunkX*16, chunkZ*16);
this.generateDefault(world, random, chunkX, chunkZ);
}
}
}
private void generateDefault(World world, Random random, int x, int z){
if(ConfigBoolValues.GENERATE_QUARTZ.isEnabled()){
this.addOreSpawn(InitBlocks.blockMisc, TheMiscBlocks.ORE_QUARTZ.ordinal(), Blocks.STONE, world, random, x, z, MathHelper.getRandomIntegerInRange(random, 5, 8), 10, QUARTZ_MIN, QUARTZ_MAX);
this.addOreSpawn(InitBlocks.blockMisc, TheMiscBlocks.ORE_QUARTZ.ordinal(), Blocks.STONE, world, random, x*16, z*16, MathHelper.getRandomIntegerInRange(random, 5, 8), 10, QUARTZ_MIN, QUARTZ_MAX);
}
if(ConfigBoolValues.GEN_LUSH_CAVES.isEnabled() && random.nextInt(ConfigIntValues.LUSH_CAVE_CHANCE.getValue()) <= 0){
BlockPos posAtHeight = world.getTopSolidOrLiquidBlock(new BlockPos(x+random.nextInt(16)+8, 0, z+random.nextInt(16)+8));
this.caveGen.generate(world, random, posAtHeight.down(MathHelper.getRandomIntegerInRange(random, 15, posAtHeight.getY()-15)));
if(ConfigBoolValues.GEN_LUSH_CAVES.isEnabled()){
StructureBoundingBox box = new StructureBoundingBox(x*16+8, 0, z*16+8, x*16+8+15, 255, z*16+8+15);
int chunkRadius = 1;
for(int dx = -chunkRadius; dx <= chunkRadius; dx++) {
for(int dz = -chunkRadius; dz <= chunkRadius; dz++) {
int chunkX = x+dx;
int chunkZ = z+dz;
int randConst = 0x969ce69d;//so that it won't generate the same numbers as other mod that does the same thing
Random chunkRand = new Random(randConst ^ world.getSeed() ^ (chunkX*29+chunkZ*31));
if(chunkRand.nextInt(ConfigIntValues.LUSH_CAVE_CHANCE.getValue()) <= 0) {
BlockPos randPos = new BlockPos(chunkX*16+chunkRand.nextInt(16)+8, 64, chunkZ*16+chunkRand.nextInt(16)+8);
BlockPos pos = randPos.down(MathHelper.getRandomIntegerInRange(chunkRand, 15, randPos.getY()-15));
this.caveGen.generate(world, chunkRand, pos, box);
}
}
}
}
}

38
src/main/java/de/ellpeck/actuallyadditions/mod/gen/WorldGenLushCaves.java
View file

@ -17,6 +17,7 @@ import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.World;
import net.minecraft.world.gen.feature.*;
import net.minecraft.world.gen.structure.StructureBoundingBox;
import net.minecraft.world.storage.loot.ILootContainer;
import java.util.ArrayList;
@ -24,30 +25,39 @@ import java.util.Collections;
import java.util.List;
import java.util.Random;
public class WorldGenLushCaves extends WorldGenerator{
public class WorldGenLushCaves{
@Override
public boolean generate(World world, Random rand, BlockPos position){
this.generateCave(world, position, rand);
public boolean generate(World world, Random rand, BlockPos position, StructureBoundingBox blockRegion){
this.generateCave(world, position, rand, blockRegion);
return true;
}
private void generateCave(World world, BlockPos center, Random rand){
private void generateCave(World world, BlockPos center, Random rand, StructureBoundingBox chunkRegion){
int spheres = rand.nextInt(5)+3;
StructureBoundingBox spheresBox = new StructureBoundingBox(chunkRegion);
//the region for spheres is larger so that trees can generate in the smaller one
spheresBox.minX -= 7;
spheresBox.minZ -= 7;
spheresBox.maxX += 7;
spheresBox.maxZ += 7;
for(int i = 0; i <= spheres; i++){
this.makeSphereWithGrassFloor(world, center.add(rand.nextInt(11)-5, rand.nextInt(7)-3, rand.nextInt(11)-5), rand.nextInt(3)+5);
//center already is random value within population area
this.makeSphereWithGrassFloor(world, center.add(rand.nextInt(11)-5, rand.nextInt(7)-3, rand.nextInt(11)-5), rand.nextInt(3)+5, spheresBox);
}
this.genTreesAndTallGrass(world, center, 10, spheres*3, rand);
this.genTreesAndTallGrass(world, center, 11, spheres*3, rand, chunkRegion);
}
private void genTreesAndTallGrass(World world, BlockPos center, int radius, int amount, Random rand){
private void genTreesAndTallGrass(World world, BlockPos center, int radius, int amount, Random rand, StructureBoundingBox box){
List<BlockPos> possiblePoses = new ArrayList<BlockPos>();
for(double x = -radius; x < radius; x++){
for(double y = -radius; y < radius; y++){
for(double z = -radius; z < radius; z++){
if(rand.nextDouble() >= 0.5D){
BlockPos pos = center.add(x, y, z);
if(!box.isVecInside(pos)) {
continue;
}
if(world.getBlockState(pos).getBlock() == Blocks.GRASS){
possiblePoses.add(pos);
}
@ -71,13 +81,14 @@ public class WorldGenLushCaves extends WorldGenerator{
}
}
private void makeSphereWithGrassFloor(World world, BlockPos center, int radius){
private void makeSphereWithGrassFloor(World world, BlockPos center, int radius, StructureBoundingBox boundingBox){
for(double x = -radius; x < radius; x++){
for(double y = -radius; y < radius; y++){
for(double z = -radius; z < radius; z++){
if(Math.sqrt((x*x)+(y*y)+(z*z)) < radius){
BlockPos pos = center.add(x, y, z);
if(!this.checkIndestructable(world, pos)){
//Note: order matters, checkIndestructable will generate chunks if order is reversed
if(boundingBox.isVecInside(pos) && !this.checkIndestructable(world, pos)){
world.setBlockToAir(pos);
}
}
@ -89,6 +100,9 @@ public class WorldGenLushCaves extends WorldGenerator{
for(double z = -radius; z < radius; z++){
for(double y = -radius; y <= -3; y++){
BlockPos pos = center.add(x, y, z);
if(!boundingBox.isVecInside(pos)) {
continue;
}
IBlockState state = world.getBlockState(pos);
BlockPos posUp = pos.up();
IBlockState stateUp = world.getBlockState(posUp);
@ -112,6 +126,10 @@ public class WorldGenLushCaves extends WorldGenerator{
IBlockState state = world.getBlockState(pos);
if(state != null){
Block block = state.getBlock();
//check if it's tree or grass that is generated here
if(block == Blocks.LOG || block == Blocks.LEAVES || block == Blocks.TALLGRASS) {
return true;
}
if(block != null && (block.isAir(state, world, pos) || block.getHarvestLevel(state) >= 0F)){
return false;
}