001    package net.minecraft.src;
002    
003    import java.util.List;
004    import java.util.Random;
005    
006    public class ComponentMineshaftStairs extends StructureComponent
007    {
008        public ComponentMineshaftStairs(int par1, Random par2Random, StructureBoundingBox par3StructureBoundingBox, int par4)
009        {
010            super(par1);
011            this.coordBaseMode = par4;
012            this.boundingBox = par3StructureBoundingBox;
013        }
014    
015        /**
016         * Trys to find a valid place to put this component.
017         */
018        public static StructureBoundingBox findValidPlacement(List par0List, Random par1Random, int par2, int par3, int par4, int par5)
019        {
020            StructureBoundingBox var6 = new StructureBoundingBox(par2, par3 - 5, par4, par2, par3 + 2, par4);
021    
022            switch (par5)
023            {
024                case 0:
025                    var6.maxX = par2 + 2;
026                    var6.maxZ = par4 + 8;
027                    break;
028                case 1:
029                    var6.minX = par2 - 8;
030                    var6.maxZ = par4 + 2;
031                    break;
032                case 2:
033                    var6.maxX = par2 + 2;
034                    var6.minZ = par4 - 8;
035                    break;
036                case 3:
037                    var6.maxX = par2 + 8;
038                    var6.maxZ = par4 + 2;
039            }
040    
041            return StructureComponent.findIntersecting(par0List, var6) != null ? null : var6;
042        }
043    
044        /**
045         * Initiates construction of the Structure Component picked, at the current Location of StructGen
046         */
047        public void buildComponent(StructureComponent par1StructureComponent, List par2List, Random par3Random)
048        {
049            int var4 = this.getComponentType();
050    
051            switch (this.coordBaseMode)
052            {
053                case 0:
054                    StructureMineshaftPieces.getNextComponent(par1StructureComponent, par2List, par3Random, this.boundingBox.minX, this.boundingBox.minY, this.boundingBox.maxZ + 1, 0, var4);
055                    break;
056                case 1:
057                    StructureMineshaftPieces.getNextComponent(par1StructureComponent, par2List, par3Random, this.boundingBox.minX - 1, this.boundingBox.minY, this.boundingBox.minZ, 1, var4);
058                    break;
059                case 2:
060                    StructureMineshaftPieces.getNextComponent(par1StructureComponent, par2List, par3Random, this.boundingBox.minX, this.boundingBox.minY, this.boundingBox.minZ - 1, 2, var4);
061                    break;
062                case 3:
063                    StructureMineshaftPieces.getNextComponent(par1StructureComponent, par2List, par3Random, this.boundingBox.maxX + 1, this.boundingBox.minY, this.boundingBox.minZ, 3, var4);
064            }
065        }
066    
067        /**
068         * second Part of Structure generating, this for example places Spiderwebs, Mob Spawners, it closes Mineshafts at
069         * the end, it adds Fences...
070         */
071        public boolean addComponentParts(World par1World, Random par2Random, StructureBoundingBox par3StructureBoundingBox)
072        {
073            if (this.isLiquidInStructureBoundingBox(par1World, par3StructureBoundingBox))
074            {
075                return false;
076            }
077            else
078            {
079                this.fillWithBlocks(par1World, par3StructureBoundingBox, 0, 5, 0, 2, 7, 1, 0, 0, false);
080                this.fillWithBlocks(par1World, par3StructureBoundingBox, 0, 0, 7, 2, 2, 8, 0, 0, false);
081    
082                for (int var4 = 0; var4 < 5; ++var4)
083                {
084                    this.fillWithBlocks(par1World, par3StructureBoundingBox, 0, 5 - var4 - (var4 < 4 ? 1 : 0), 2 + var4, 2, 7 - var4, 2 + var4, 0, 0, false);
085                }
086    
087                return true;
088            }
089        }
090    }