StructureStart.java

package net.minecraft.world.gen.structure;

import java.util.Iterator;
import java.util.LinkedList;
import java.util.Random;
import net.minecraft.world.World;

public abstract class StructureStart
{
    /** List of all StructureComponents that are part of this structure */
    protected LinkedList components = new LinkedList();
    protected StructureBoundingBox boundingBox;

    public StructureBoundingBox getBoundingBox()
    {
        return this.boundingBox;
    }

    public LinkedList getComponents()
    {
        return this.components;
    }

    /**
     * Keeps iterating Structure Pieces and spawning them until the checks tell it to stop
     */
    public void generateStructure(World par1World, Random par2Random, StructureBoundingBox par3StructureBoundingBox)
    {
        Iterator var4 = this.components.iterator();

        while (var4.hasNext())
        {
            StructureComponent var5 = (StructureComponent)var4.next();

            if (var5.getBoundingBox().intersectsWith(par3StructureBoundingBox) && !var5.addComponentParts(par1World, par2Random, par3StructureBoundingBox))
            {
                var4.remove();
            }
        }
    }

    /**
     * Calculates total bounding box based on components' bounding boxes and saves it to boundingBox
     */
    protected void updateBoundingBox()
    {
        this.boundingBox = StructureBoundingBox.getNewBoundingBox();
        Iterator var1 = this.components.iterator();

        while (var1.hasNext())
        {
            StructureComponent var2 = (StructureComponent)var1.next();
            this.boundingBox.expandTo(var2.getBoundingBox());
        }
    }

    /**
     * offsets the structure Bounding Boxes up to a certain height, typically 63 - 10
     */
    protected void markAvailableHeight(World par1World, Random par2Random, int par3)
    {
        int var4 = 63 - par3;
        int var5 = this.boundingBox.getYSize() + 1;

        if (var5 < var4)
        {
            var5 += par2Random.nextInt(var4 - var5);
        }

        int var6 = var5 - this.boundingBox.maxY;
        this.boundingBox.offset(0, var6, 0);
        Iterator var7 = this.components.iterator();

        while (var7.hasNext())
        {
            StructureComponent var8 = (StructureComponent)var7.next();
            var8.getBoundingBox().offset(0, var6, 0);
        }
    }

    protected void setRandomHeight(World par1World, Random par2Random, int par3, int par4)
    {
        int var5 = par4 - par3 + 1 - this.boundingBox.getYSize();
        boolean var6 = true;
        int var10;

        if (var5 > 1)
        {
            var10 = par3 + par2Random.nextInt(var5);
        }
        else
        {
            var10 = par3;
        }

        int var7 = var10 - this.boundingBox.minY;
        this.boundingBox.offset(0, var7, 0);
        Iterator var8 = this.components.iterator();

        while (var8.hasNext())
        {
            StructureComponent var9 = (StructureComponent)var8.next();
            var9.getBoundingBox().offset(0, var7, 0);
        }
    }

    /**
     * currently only defined for Villages, returns true if Village has more than 2 non-road components
     */
    public boolean isSizeableStructure()
    {
        return true;
    }
}