package net.minecraft.world.level.levelgen.feature.foliageplacers;

import com.mojang.serialization.MapCodec;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import net.minecraft.core.BlockPos;
import net.minecraft.util.Mth;
import net.minecraft.util.RandomSource;
import net.minecraft.util.valueproviders.IntProvider;
import net.minecraft.util.valueproviders.IntProviders;
import net.minecraft.world.level.WorldGenLevel;
import net.minecraft.world.level.levelgen.feature.configurations.TreeConfiguration;

public class MegaPineFoliagePlacer extends FoliagePlacer {
	public static final MapCodec<MegaPineFoliagePlacer> CODEC = RecordCodecBuilder.mapCodec(
		i -> foliagePlacerParts(i).and(IntProviders.codec(0, 24).fieldOf("crown_height").forGetter(p -> p.crownHeight)).apply(i, MegaPineFoliagePlacer::new)
	);
	private final IntProvider crownHeight;

	public MegaPineFoliagePlacer(final IntProvider radius, final IntProvider offset, final IntProvider crownHeight) {
		super(radius, offset);
		this.crownHeight = crownHeight;
	}

	@Override
	protected FoliagePlacerType<?> type() {
		return FoliagePlacerType.MEGA_PINE_FOLIAGE_PLACER;
	}

	@Override
	protected void createFoliage(
		final WorldGenLevel level,
		final FoliagePlacer.FoliageSetter foliageSetter,
		final RandomSource random,
		final TreeConfiguration config,
		final int treeHeight,
		final FoliagePlacer.FoliageAttachment foliageAttachment,
		final int foliageHeight,
		final int leafRadius,
		final int offset
	) {
		BlockPos foliagePos = foliageAttachment.pos();
		int prevRadius = 0;

		for (int yy = foliagePos.getY() - foliageHeight + offset; yy <= foliagePos.getY() + offset; yy++) {
			int yo = foliagePos.getY() - yy;
			int smoothRadius = leafRadius + foliageAttachment.radiusOffset() + Mth.floor((float)yo / foliageHeight * 3.5F);
			int jaggedRadius;
			if (yo > 0 && smoothRadius == prevRadius && (yy & 1) == 0) {
				jaggedRadius = smoothRadius + 1;
			} else {
				jaggedRadius = smoothRadius;
			}

			this.placeLeavesRow(
				level, foliageSetter, random, config, new BlockPos(foliagePos.getX(), yy, foliagePos.getZ()), jaggedRadius, 0, foliageAttachment.doubleTrunk()
			);
			prevRadius = smoothRadius;
		}
	}

	@Override
	public int foliageHeight(final RandomSource random, final int treeHeight, final TreeConfiguration config) {
		return this.crownHeight.sample(random);
	}

	@Override
	protected boolean shouldSkipLocation(final RandomSource random, final int dx, final int y, final int dz, final int currentRadius, final boolean doubleTrunk) {
		return dx + dz >= 7 ? true : dx * dx + dz * dz > currentRadius * currentRadius;
	}
}