org.spongepowered.common.world.gen.populators.RandomBlockPopulator.java Source code

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Here is the source code for org.spongepowered.common.world.gen.populators.RandomBlockPopulator.java

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/*
 * This file is part of Sponge, licensed under the MIT License (MIT).
 *
 * Copyright (c) SpongePowered <https://www.spongepowered.org>
 * Copyright (c) contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.spongepowered.common.world.gen.populators;

import static com.google.common.base.Preconditions.checkNotNull;

import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import net.minecraft.block.Block;
import org.spongepowered.api.block.BlockState;
import org.spongepowered.api.util.weighted.VariableAmount;
import org.spongepowered.api.world.Chunk;
import org.spongepowered.api.world.Location;
import org.spongepowered.api.world.World;
import org.spongepowered.api.world.gen.PopulatorType;
import org.spongepowered.api.world.gen.PopulatorTypes;
import org.spongepowered.api.world.gen.populator.RandomBlock;
import org.spongepowered.common.util.VecHelper;

import java.util.Random;

public class RandomBlockPopulator implements RandomBlock {

    private VariableAmount count;
    private VariableAmount height;
    private Predicate<Location<World>> check;
    private BlockState state;

    public RandomBlockPopulator(BlockState block, VariableAmount count, VariableAmount height) {
        this.count = checkNotNull(count);
        this.state = checkNotNull(block);
        this.height = checkNotNull(height);
        this.check = Predicates.alwaysTrue();
    }

    public RandomBlockPopulator(BlockState block, VariableAmount count, VariableAmount height,
            Predicate<Location<World>> check) {
        this.count = checkNotNull(count);
        this.state = checkNotNull(block);
        this.height = checkNotNull(height);
        this.check = checkNotNull(check);
    }

    @Override
    public PopulatorType getType() {
        return PopulatorTypes.GENERIC_BLOCK;
    }

    @Override
    public void populate(Chunk chunk, Random random) {
        net.minecraft.world.World mcWorld = (net.minecraft.world.World) chunk.getWorld();
        int n = this.count.getFlooredAmount(random);
        Location<World> chunkMin = new Location<World>(chunk.getWorld(), chunk.getBlockMin().getX(),
                chunk.getBlockMin().getY(), chunk.getBlockMin().getZ());
        for (int i = 0; i < n; i++) {
            Location<World> pos = chunkMin.add(random.nextInt(16) + 8, this.height.getFlooredAmount(random),
                    random.nextInt(16) + 8);
            if (this.check.apply(pos)) {
                chunk.getWorld().setBlock(pos.getBlockPosition(), this.state);
                // Liquids force a block update tick so they may flow during world gen
                mcWorld.forceBlockUpdateTick((Block) this.state.getType(), VecHelper.toBlockPos(pos), random);
            }
        }
    }

    @Override
    public BlockState getBlock() {
        return this.state;
    }

    @Override
    public void setBlock(BlockState block) {
        this.state = checkNotNull(block);
    }

    @Override
    public VariableAmount getAttemptsPerChunk() {
        return this.count;
    }

    @Override
    public void setAttemptsPerChunk(VariableAmount count) {
        this.count = checkNotNull(count);
    }

    @Override
    public Predicate<Location<World>> getPlacementTarget() {
        return this.check;
    }

    @Override
    public void getPlacementTarget(Predicate<Location<World>> target) {
        this.check = checkNotNull(target);
    }

    @Override
    public VariableAmount getHeightRange() {
        return this.height;
    }

    @Override
    public void setHeightRange(VariableAmount height) {
        this.height = checkNotNull(height);
    }

}