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

package com.hypixel.hytale.builtin.hytalegenerator.positionproviders;

import com.hypixel.hytale.math.vector.Vector3d;
import java.util.Iterator;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.Nonnull;
import com.hypixel.hytale.builtin.hytalegenerator.density.Density;

public class FieldFunctionPositionProvider extends PositionProvider
{
    @Nonnull
    private final Density field;
    @Nonnull
    private final List<Delimiter> delimiters;
    @Nonnull
    private final PositionProvider positionProvider;
    
    public FieldFunctionPositionProvider(@Nonnull final Density field, @Nonnull final PositionProvider positionProvider) {
        this.field = field;
        this.positionProvider = positionProvider;
        this.delimiters = new ArrayList<Delimiter>();
    }
    
    public void addDelimiter(final double min, final double max) {
        final Delimiter d = new Delimiter();
        d.min = min;
        d.max = max;
        this.delimiters.add(d);
    }
    
    @Override
    public void positionsIn(@Nonnull final Context context) {
        final Context childContext = new Context(context);
        childContext.consumer = (p -> {
            final Density.Context densityContext = new Density.Context();
            densityContext.position = p;
            densityContext.positionsAnchor = context.anchor;
            densityContext.workerId = context.workerId;
            final double value = this.field.process(densityContext);
            for (final Delimiter d : this.delimiters) {
                if (d.isInside(value)) {
                    context.consumer.accept(p);
                }
            }
            return;
        });
        this.positionProvider.positionsIn(childContext);
    }
    
    private static class Delimiter
    {
        double min;
        double max;
        
        boolean isInside(final double v) {
            return v >= this.min && v < this.max;
        }
    }
}