minecraft-src/net/minecraft/world/level/block/CropBlock.java

package net.minecraft.world.level.block;

import com.mojang.serialization.MapCodec;
import net.minecraft.core.BlockPos;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.util.Mth;
import net.minecraft.util.RandomSource;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.InsideBlockEffectApplier;
import net.minecraft.world.entity.monster.Ravager;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.Items;
import net.minecraft.world.level.BlockGetter;
import net.minecraft.world.level.GameRules;
import net.minecraft.world.level.ItemLike;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.LevelReader;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.block.state.StateDefinition.Builder;
import net.minecraft.world.level.block.state.properties.BlockStateProperties;
import net.minecraft.world.level.block.state.properties.IntegerProperty;
import net.minecraft.world.phys.shapes.CollisionContext;
import net.minecraft.world.phys.shapes.VoxelShape;

public class CropBlock extends VegetationBlock implements BonemealableBlock {
	public static final MapCodec<CropBlock> CODEC = simpleCodec(CropBlock::new);
	public static final int MAX_AGE = 7;
	public static final IntegerProperty AGE = BlockStateProperties.AGE_7;
	private static final VoxelShape[] SHAPES = Block.boxes(7, i -> Block.column(16.0, 0.0, 2 + i * 2));

	@Override
	public MapCodec<? extends CropBlock> codec() {
		return CODEC;
	}

	protected CropBlock(BlockBehaviour.Properties properties) {
		super(properties);
		this.registerDefaultState(this.stateDefinition.any().setValue(this.getAgeProperty(), 0));
	}

	@Override
	protected VoxelShape getShape(BlockState state, BlockGetter level, BlockPos pos, CollisionContext context) {
		return SHAPES[this.getAge(state)];
	}

	@Override
	protected boolean mayPlaceOn(BlockState state, BlockGetter level, BlockPos pos) {
		return state.is(Blocks.FARMLAND);
	}

	protected IntegerProperty getAgeProperty() {
		return AGE;
	}

	public int getMaxAge() {
		return 7;
	}

	public int getAge(BlockState state) {
		return (Integer)state.getValue(this.getAgeProperty());
	}

	public BlockState getStateForAge(int age) {
		return this.defaultBlockState().setValue(this.getAgeProperty(), age);
	}

	public final boolean isMaxAge(BlockState state) {
		return this.getAge(state) >= this.getMaxAge();
	}

	@Override
	protected boolean isRandomlyTicking(BlockState state) {
		return !this.isMaxAge(state);
	}

	@Override
	protected void randomTick(BlockState state, ServerLevel level, BlockPos pos, RandomSource random) {
		if (level.getRawBrightness(pos, 0) >= 9) {
			int i = this.getAge(state);
			if (i < this.getMaxAge()) {
				float f = getGrowthSpeed(this, level, pos);
				if (random.nextInt((int)(25.0F / f) + 1) == 0) {
					level.setBlock(pos, this.getStateForAge(i + 1), 2);
				}
			}
		}
	}

	public void growCrops(Level level, BlockPos pos, BlockState state) {
		int i = Math.min(this.getMaxAge(), this.getAge(state) + this.getBonemealAgeIncrease(level));
		level.setBlock(pos, this.getStateForAge(i), 2);
	}

	protected int getBonemealAgeIncrease(Level level) {
		return Mth.nextInt(level.random, 2, 5);
	}

	protected static float getGrowthSpeed(Block block, BlockGetter level, BlockPos pos) {
		float f = 1.0F;
		BlockPos blockPos = pos.below();

		for (int i = -1; i <= 1; i++) {
			for (int j = -1; j <= 1; j++) {
				float g = 0.0F;
				BlockState blockState = level.getBlockState(blockPos.offset(i, 0, j));
				if (blockState.is(Blocks.FARMLAND)) {
					g = 1.0F;
					if ((Integer)blockState.getValue(FarmBlock.MOISTURE) > 0) {
						g = 3.0F;
					}
				}

				if (i != 0 || j != 0) {
					g /= 4.0F;
				}

				f += g;
			}
		}

		BlockPos blockPos2 = pos.north();
		BlockPos blockPos3 = pos.south();
		BlockPos blockPos4 = pos.west();
		BlockPos blockPos5 = pos.east();
		boolean bl = level.getBlockState(blockPos4).is(block) || level.getBlockState(blockPos5).is(block);
		boolean bl2 = level.getBlockState(blockPos2).is(block) || level.getBlockState(blockPos3).is(block);
		if (bl && bl2) {
			f /= 2.0F;
		} else {
			boolean bl3 = level.getBlockState(blockPos4.north()).is(block)
				|| level.getBlockState(blockPos5.north()).is(block)
				|| level.getBlockState(blockPos5.south()).is(block)
				|| level.getBlockState(blockPos4.south()).is(block);
			if (bl3) {
				f /= 2.0F;
			}
		}

		return f;
	}

	@Override
	protected boolean canSurvive(BlockState state, LevelReader level, BlockPos pos) {
		return hasSufficientLight(level, pos) && super.canSurvive(state, level, pos);
	}

	protected static boolean hasSufficientLight(LevelReader level, BlockPos pos) {
		return level.getRawBrightness(pos, 0) >= 8;
	}

	@Override
	protected void entityInside(BlockState state, Level level, BlockPos pos, Entity entity, InsideBlockEffectApplier effectApplier) {
		if (level instanceof ServerLevel serverLevel && entity instanceof Ravager && serverLevel.getGameRules().getBoolean(GameRules.RULE_MOBGRIEFING)) {
			serverLevel.destroyBlock(pos, true, entity);
		}

		super.entityInside(state, level, pos, entity, effectApplier);
	}

	protected ItemLike getBaseSeedId() {
		return Items.WHEAT_SEEDS;
	}

	@Override
	protected ItemStack getCloneItemStack(LevelReader level, BlockPos pos, BlockState state, boolean includeData) {
		return new ItemStack(this.getBaseSeedId());
	}

	@Override
	public boolean isValidBonemealTarget(LevelReader level, BlockPos pos, BlockState state) {
		return !this.isMaxAge(state);
	}

	@Override
	public boolean isBonemealSuccess(Level level, RandomSource random, BlockPos pos, BlockState state) {
		return true;
	}

	@Override
	public void performBonemeal(ServerLevel level, RandomSource random, BlockPos pos, BlockState state) {
		this.growCrops(level, pos, state);
	}

	@Override
	protected void createBlockStateDefinition(Builder<Block, BlockState> builder) {
		builder.add(AGE);
	}
}