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Ice Starfield biome

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paulevsGitch 2020-12-11 02:09:17 +03:00
parent 858a7c8378
commit 19c7b37582
16 changed files with 260 additions and 0 deletions
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src/main/java/ru/betterend/world/features/terrain/IceStarFeature.java Normal file
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package ru.betterend.world.features.terrain;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import net.minecraft.block.BlockState;
import net.minecraft.block.Blocks;
import net.minecraft.client.util.math.Vector3f;
import net.minecraft.state.property.Properties;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.StructureWorldAccess;
import net.minecraft.world.gen.chunk.ChunkGenerator;
import net.minecraft.world.gen.feature.DefaultFeatureConfig;
import ru.betterend.noise.OpenSimplexNoise;
import ru.betterend.util.MHelper;
import ru.betterend.util.sdf.SDF;
import ru.betterend.util.sdf.operator.SDFRotation;
import ru.betterend.util.sdf.operator.SDFTranslate;
import ru.betterend.util.sdf.operator.SDFUnion;
import ru.betterend.util.sdf.primitive.SDFCapedCone;
import ru.betterend.world.features.DefaultFeature;
public class IceStarFeature extends DefaultFeature {
@Override
public boolean generate(StructureWorldAccess world, ChunkGenerator chunkGenerator, Random random, BlockPos pos, DefaultFeatureConfig config) {
float size = MHelper.randRange(5F, 15F, random);
int count = MHelper.randRange(7, 25, random);
List<Vector3f> points = getFibonacciPoints(count);
SDF sdf = null;
SDF spike = new SDFCapedCone().setRadius1(3 + (size - 5) * 0.2F).setRadius2(0).setHeight(size).setBlock(Blocks.ICE);
spike = new SDFTranslate().setTranslate(0, size - 0.5F, 0).setSource(spike);
for (Vector3f point: points) {
SDF rotated = spike;
point = MHelper.normalize(point);
float angle = MHelper.angle(Vector3f.POSITIVE_Y, point);
if (angle > 0.01F && angle < 3.14F) {
Vector3f axis = MHelper.normalize(MHelper.cross(Vector3f.POSITIVE_Y, point));
rotated = new SDFRotation().setRotation(axis, angle).setSource(spike);
}
else if (angle > 1) {
rotated = new SDFRotation().setRotation(Vector3f.POSITIVE_Y, (float) Math.PI).setSource(spike);
}
sdf = (sdf == null) ? rotated : new SDFUnion().setSourceA(sdf).setSourceB(rotated);
}
int x1 = (pos.getX() >> 4) << 4;
int z1 = (pos.getZ() >> 4) << 4;
pos = new BlockPos(x1 + random.nextInt(16), MHelper.randRange(32, 128, random), z1 + random.nextInt(16));
OpenSimplexNoise noise1 = new OpenSimplexNoise(random.nextLong());
OpenSimplexNoise noise2 = new OpenSimplexNoise(random.nextLong());
final boolean hasSnow = random.nextBoolean();
BlockState layer = Blocks.SNOW.getDefaultState();
BlockState snow = Blocks.SNOW_BLOCK.getDefaultState();
BlockState blue = Blocks.BLUE_ICE.getDefaultState();
BlockState packed = Blocks.PACKED_ICE.getDefaultState();
sdf.setPostProcess((info) -> {
BlockPos bpos = info.getPos();
if (hasSnow && !info.getState().isOf(Blocks.SNOW) && info.getStateUp().isAir()) {
info.setBlockPos(bpos.up(), layer.with(Properties.LAYERS, MHelper.randRange(1, 3, random)));
//info.setBlockPos(bpos.up(), layer);
return snow;
}
if (noise1.eval(bpos.getX(), bpos.getY(), bpos.getZ()) > 0.3) {
return packed;
}
else if (noise2.eval(bpos.getX(), bpos.getY(), bpos.getZ()) > 0.3) {
return blue;
}
else {
return info.getState();
}
}).fillRecursive(world, pos);
return true;
}
private List<Vector3f> getFibonacciPoints(int count) {
float max = count - 1;
List<Vector3f> result = new ArrayList<Vector3f>(count);
for (int i = 0; i < count; i++) {
float y = 1F - (i / max) * 2F;
float radius = (float) Math.sqrt(1F - y * y);
float theta = MHelper.PHI * i;
float x = (float) Math.cos(theta) * radius;
float z = (float) Math.sin(theta) * radius;
result.add(new Vector3f(x, y, z));
}
return result;
}
}