// 
// Decompiled by Procyon v0.6.0
// 

package com.hypixel.hytale.server.core.universe.world.worldgen;

import io.netty.buffer.ByteBuf;
import it.unimi.dsi.fastutil.ints.IntArrays;
import com.hypixel.hytale.server.core.universe.world.chunk.section.BlockSection;
import java.util.Arrays;
import com.hypixel.hytale.math.util.ChunkUtil;
import com.hypixel.hytale.server.core.universe.world.chunk.section.palette.EmptySectionPalette;
import com.hypixel.hytale.server.core.universe.world.chunk.section.palette.ISectionPalette;
import javax.annotation.Nonnull;

public class GeneratedChunkSection
{
    @Nonnull
    private final int[] data;
    @Nonnull
    private final int[] temp;
    private ISectionPalette fillers;
    private ISectionPalette rotations;
    
    public GeneratedChunkSection() {
        this.data = new int[32768];
        this.temp = new int[32768];
        this.fillers = EmptySectionPalette.INSTANCE;
        this.rotations = EmptySectionPalette.INSTANCE;
    }
    
    public int getRotationIndex(final int x, final int y, final int z) {
        return this.getRotationIndex(ChunkUtil.indexBlock(x, y, z));
    }
    
    private int getRotationIndex(final int index) {
        return this.rotations.get(index);
    }
    
    public int getBlock(final int x, final int y, final int z) {
        return this.getBlock(ChunkUtil.indexBlock(x, y, z));
    }
    
    public int getFiller(final int x, final int y, final int z) {
        return this.fillers.get(ChunkUtil.indexBlock(x, y, z));
    }
    
    private int getBlock(final int index) {
        return this.data[index];
    }
    
    public void setBlock(final int x, final int y, final int z, final int block, final int rotation, final int filler) {
        this.setBlock(ChunkUtil.indexBlock(x, y, z), block, rotation, filler);
    }
    
    public void setBlock(final int index, final int block, final int rotation, final int filler) {
        this.data[index] = block;
        ISectionPalette.SetResult result = this.fillers.set(index, filler);
        if (result == ISectionPalette.SetResult.REQUIRES_PROMOTE) {
            (this.fillers = this.fillers.promote()).set(index, filler);
        }
        else if (result == ISectionPalette.SetResult.ADDED_OR_REMOVED && this.fillers.shouldDemote()) {
            this.fillers = this.fillers.demote();
        }
        result = this.rotations.set(index, rotation);
        if (result == ISectionPalette.SetResult.REQUIRES_PROMOTE) {
            (this.rotations = this.rotations.promote()).set(index, rotation);
        }
        else if (result == ISectionPalette.SetResult.ADDED_OR_REMOVED && this.rotations.shouldDemote()) {
            this.rotations = this.rotations.demote();
        }
    }
    
    public int[] getData() {
        return this.data;
    }
    
    public void reset() {
        Arrays.fill(this.data, 0);
    }
    
    public boolean isSolidAir() {
        for (int i = 0; i < this.data.length; ++i) {
            if (this.data[i] != 0) {
                return false;
            }
        }
        return true;
    }
    
    @Nonnull
    public BlockSection toChunkSection() {
        System.arraycopy(this.data, 0, this.temp, 0, 32768);
        IntArrays.unstableSort(this.temp);
        int count = 1;
        for (int i = 1; i < 32768; ++i) {
            if (this.temp[i] != this.temp[i - 1]) {
                this.temp[count++] = this.temp[i];
            }
        }
        return new BlockSection(ISectionPalette.from(this.data, this.temp, count), this.fillers, this.rotations);
    }
    
    public void serialize(@Nonnull final ByteBuf buf) {
        for (int i = 0; i < 32768; ++i) {
            buf.writeInt(this.data[i]);
        }
    }
    
    public void deserialize(@Nonnull final ByteBuf buf, final int version) {
        final int[] blocks = new int[32768];
        for (int i = 0; i < blocks.length; ++i) {
            blocks[i] = buf.readInt();
        }
    }
}