101 lines
3.5 KiB
Java
101 lines
3.5 KiB
Java
package com.terraforged.feature.feature;
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import net.minecraft.block.BlockState;
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import net.minecraft.block.Blocks;
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import net.minecraft.block.SnowyDirtBlock;
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import net.minecraft.tags.BlockTags;
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import net.minecraft.util.Direction;
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import net.minecraft.util.math.BlockPos;
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import net.minecraft.world.IWorld;
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import net.minecraft.world.biome.Biome;
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import net.minecraft.world.gen.ChunkGenerator;
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import net.minecraft.world.gen.GenerationSettings;
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import net.minecraft.world.gen.Heightmap;
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import net.minecraft.world.gen.feature.Feature;
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import net.minecraft.world.gen.feature.NoFeatureConfig;
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import java.util.Random;
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public class FreezeLayer extends Feature<NoFeatureConfig> {
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public static final FreezeLayer INSTANCE = new FreezeLayer();
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public FreezeLayer() {
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super(NoFeatureConfig::deserialize);
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setRegistryName("terraforged", "freeze_top_layer");
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}
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@Override
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public boolean place(IWorld world, ChunkGenerator<? extends GenerationSettings> generator, Random rand, BlockPos pos, NoFeatureConfig config) {
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BlockPos.Mutable pos1 = new BlockPos.Mutable();
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BlockPos.Mutable pos2 = new BlockPos.Mutable();
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for(int dx = 0; dx < 16; ++dx) {
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for(int dz = 0; dz < 16; ++dz) {
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int x = pos.getX() + dx;
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int z = pos.getZ() + dz;
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int y1 = world.getHeight(Heightmap.Type.MOTION_BLOCKING, x, z);
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int y2 = world.getHeight(Heightmap.Type.MOTION_BLOCKING_NO_LEAVES, x, z);
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pos1.setPos(x, y1, z);
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pos2.setPos(pos1).move(Direction.DOWN, 1);
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Biome biome = world.getBiome(pos1);
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boolean freezesHere = freeze(world, biome, pos1, pos2, false, false);
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if (y1 != y2) {
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pos1.setPos(x, y2, z);
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pos2.setPos(pos1).move(Direction.DOWN, 1);
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freeze(world, biome, pos1, pos2, freezesHere, true);
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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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private boolean freeze(IWorld world, Biome biome, BlockPos.Mutable top, BlockPos below, boolean force, boolean ground) {
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boolean hasFrozen = false;
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if (biome.doesWaterFreeze(world, below, false)) {
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world.setBlockState(below, Blocks.ICE.getDefaultState(), 2);
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hasFrozen = true;
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}
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if (force || biome.doesSnowGenerate(world, top)) {
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hasFrozen = true;
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BlockState stateUnder = world.getBlockState(below);
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if (stateUnder.getBlock() == Blocks.AIR) {
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return false;
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}
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if (ground) {
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if (BlockTags.LOGS.contains(stateUnder.getBlock())) {
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return false;
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}
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BlockState above = world.getBlockState(top.up());
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if (BlockTags.LOGS.contains(above.getBlock()) || BlockTags.LEAVES.contains(above.getBlock())) {
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return false;
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}
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setSnow(world, top, below, stateUnder);
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if (above.getBlock() != Blocks.AIR) {
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world.setBlockState(top, Blocks.AIR.getDefaultState(), 2);
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}
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} else {
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setSnow(world, top, below, stateUnder);
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}
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}
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return hasFrozen;
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}
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private void setSnow(IWorld world, BlockPos pos1, BlockPos pos2, BlockState below) {
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world.setBlockState(pos1, Blocks.SNOW.getDefaultState(), 2);
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if (below.has(SnowyDirtBlock.SNOWY)) {
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world.setBlockState(pos2, below.with(SnowyDirtBlock.SNOWY, true), 2);
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}
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}
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}
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