/*
 * Decompiled with CFR 0.152.
 */
package net.minecraft.client.renderer.chunk;

import java.util.BitSet;
import java.util.Locale;
import java.util.Set;
import net.minecraft.core.Direction;

public class VisibilitySet {
    private static final int FACINGS = Direction.values().length;
    private final BitSet data = new BitSet(FACINGS * FACINGS);

    public void add(Set<Direction> directions) {
        for (Direction direction1 : directions) {
            for (Direction direction2 : directions) {
                this.set(direction1, direction2, true);
            }
        }
    }

    public void set(Direction direction1, Direction direction2, boolean value) {
        this.data.set(direction1.ordinal() + direction2.ordinal() * FACINGS, value);
        this.data.set(direction2.ordinal() + direction1.ordinal() * FACINGS, value);
    }

    public void setAll(boolean visible) {
        this.data.set(0, this.data.size(), visible);
    }

    public boolean visibilityBetween(Direction direction1, Direction direction2) {
        return this.data.get(direction1.ordinal() + direction2.ordinal() * FACINGS);
    }

    public String toString() {
        StringBuilder builder = new StringBuilder();
        builder.append(' ');
        for (Direction direction : Direction.values()) {
            builder.append(' ').append(direction.toString().toUpperCase(Locale.ROOT).charAt(0));
        }
        builder.append('\n');
        for (Direction direction1 : Direction.values()) {
            builder.append(direction1.toString().toUpperCase(Locale.ROOT).charAt(0));
            for (Direction direction2 : Direction.values()) {
                if (direction1 == direction2) {
                    builder.append("  ");
                    continue;
                }
                boolean ok = this.visibilityBetween(direction1, direction2);
                builder.append(' ').append(ok ? (char)'Y' : 'n');
            }
            builder.append('\n');
        }
        return builder.toString();
    }
}