101 lines
3.3 KiB
Java
101 lines
3.3 KiB
Java
package net.minecraft.world.level.levelgen.feature;
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import com.mojang.serialization.Codec;
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import net.minecraft.core.BlockPos;
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import net.minecraft.util.Mth;
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import net.minecraft.util.RandomSource;
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import net.minecraft.world.level.WorldGenLevel;
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import net.minecraft.world.level.block.Blocks;
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import net.minecraft.world.level.block.state.BlockState;
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import net.minecraft.world.level.levelgen.feature.configurations.NoneFeatureConfiguration;
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public class IceSpikeFeature extends Feature<NoneFeatureConfiguration> {
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public IceSpikeFeature(Codec<NoneFeatureConfiguration> codec) {
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super(codec);
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}
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@Override
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public boolean place(FeaturePlaceContext<NoneFeatureConfiguration> context) {
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BlockPos blockPos = context.origin();
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RandomSource randomSource = context.random();
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WorldGenLevel worldGenLevel = context.level();
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while (worldGenLevel.isEmptyBlock(blockPos) && blockPos.getY() > worldGenLevel.getMinBuildHeight() + 2) {
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blockPos = blockPos.below();
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}
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if (!worldGenLevel.getBlockState(blockPos).is(Blocks.SNOW_BLOCK)) {
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return false;
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} else {
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blockPos = blockPos.above(randomSource.nextInt(4));
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int i = randomSource.nextInt(4) + 7;
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int j = i / 4 + randomSource.nextInt(2);
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if (j > 1 && randomSource.nextInt(60) == 0) {
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blockPos = blockPos.above(10 + randomSource.nextInt(30));
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}
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for (int k = 0; k < i; k++) {
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float f = (1.0F - (float)k / i) * j;
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int l = Mth.ceil(f);
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for (int m = -l; m <= l; m++) {
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float g = Mth.abs(m) - 0.25F;
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for (int n = -l; n <= l; n++) {
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float h = Mth.abs(n) - 0.25F;
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if ((m == 0 && n == 0 || !(g * g + h * h > f * f)) && (m != -l && m != l && n != -l && n != l || !(randomSource.nextFloat() > 0.75F))) {
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BlockState blockState = worldGenLevel.getBlockState(blockPos.offset(m, k, n));
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if (blockState.isAir() || isDirt(blockState) || blockState.is(Blocks.SNOW_BLOCK) || blockState.is(Blocks.ICE)) {
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this.setBlock(worldGenLevel, blockPos.offset(m, k, n), Blocks.PACKED_ICE.defaultBlockState());
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}
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if (k != 0 && l > 1) {
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blockState = worldGenLevel.getBlockState(blockPos.offset(m, -k, n));
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if (blockState.isAir() || isDirt(blockState) || blockState.is(Blocks.SNOW_BLOCK) || blockState.is(Blocks.ICE)) {
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this.setBlock(worldGenLevel, blockPos.offset(m, -k, n), Blocks.PACKED_ICE.defaultBlockState());
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}
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}
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}
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}
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}
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}
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int k = j - 1;
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if (k < 0) {
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k = 0;
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} else if (k > 1) {
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k = 1;
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}
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for (int o = -k; o <= k; o++) {
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for (int l = -k; l <= k; l++) {
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BlockPos blockPos2 = blockPos.offset(o, -1, l);
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int p = 50;
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if (Math.abs(o) == 1 && Math.abs(l) == 1) {
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p = randomSource.nextInt(5);
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}
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while (blockPos2.getY() > 50) {
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BlockState blockState2 = worldGenLevel.getBlockState(blockPos2);
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if (!blockState2.isAir()
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&& !isDirt(blockState2)
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&& !blockState2.is(Blocks.SNOW_BLOCK)
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&& !blockState2.is(Blocks.ICE)
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&& !blockState2.is(Blocks.PACKED_ICE)) {
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break;
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}
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this.setBlock(worldGenLevel, blockPos2, Blocks.PACKED_ICE.defaultBlockState());
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blockPos2 = blockPos2.below();
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if (--p <= 0) {
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blockPos2 = blockPos2.below(randomSource.nextInt(5) + 1);
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p = randomSource.nextInt(5);
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}
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}
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}
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}
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return true;
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}
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}
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}
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