    001package net.minecraft.block;
    002
    003import java.util.Random;
    004import net.minecraft.block.material.Material;
    005import net.minecraft.world.IBlockAccess;
    006import net.minecraft.world.World;
    007
    008public class BlockStationary extends BlockFluid
    009{
    010    protected BlockStationary(int par1, Material par2Material)
    011    {
    012        super(par1, par2Material);
    013        this.setTickRandomly(false);
    014
    015        if (par2Material == Material.lava)
    016        {
    017            this.setTickRandomly(true);
    018        }
    019    }
    020
    021    public boolean getBlocksMovement(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
    022    {
    023        return this.blockMaterial != Material.lava;
    024    }
    025
    026    /**
    027     * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
    028     * their own) Args: x, y, z, neighbor blockID
    029     */
    030    public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    031    {
    032        super.onNeighborBlockChange(par1World, par2, par3, par4, par5);
    033
    034        if (par1World.getBlockId(par2, par3, par4) == this.blockID)
    035        {
    036            this.setNotStationary(par1World, par2, par3, par4);
    037        }
    038    }
    039
    040    /**
    041     * Changes the block ID to that of an updating fluid.
    042     */
    043    private void setNotStationary(World par1World, int par2, int par3, int par4)
    044    {
    045        int var5 = par1World.getBlockMetadata(par2, par3, par4);
    046        par1World.editingBlocks = true;
    047        par1World.setBlockAndMetadata(par2, par3, par4, this.blockID - 1, var5);
    048        par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
    049        par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID - 1, this.tickRate());
    050        par1World.editingBlocks = false;
    051    }
    052
    053    /**
    054     * Ticks the block if it's been scheduled
    055     */
    056    public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    057    {
    058        if (this.blockMaterial == Material.lava)
    059        {
    060            int var6 = par5Random.nextInt(3);
    061            int var7;
    062            int var8;
    063
    064            for (var7 = 0; var7 < var6; ++var7)
    065            {
    066                par2 += par5Random.nextInt(3) - 1;
    067                ++par3;
    068                par4 += par5Random.nextInt(3) - 1;
    069                var8 = par1World.getBlockId(par2, par3, par4);
    070
    071                if (var8 == 0)
    072                {
    073                    if (this.isFlammable(par1World, par2 - 1, par3, par4) || this.isFlammable(par1World, par2 + 1, par3, par4) || this.isFlammable(par1World, par2, par3, par4 - 1) || this.isFlammable(par1World, par2, par3, par4 + 1) || this.isFlammable(par1World, par2, par3 - 1, par4) || this.isFlammable(par1World, par2, par3 + 1, par4))
    074                    {
    075                        par1World.setBlockWithNotify(par2, par3, par4, Block.fire.blockID);
    076                        return;
    077                    }
    078                }
    079                else if (Block.blocksList[var8].blockMaterial.blocksMovement())
    080                {
    081                    return;
    082                }
    083            }
    084
    085            if (var6 == 0)
    086            {
    087                var7 = par2;
    088                var8 = par4;
    089
    090                for (int var9 = 0; var9 < 3; ++var9)
    091                {
    092                    par2 = var7 + par5Random.nextInt(3) - 1;
    093                    par4 = var8 + par5Random.nextInt(3) - 1;
    094
    095                    if (par1World.isAirBlock(par2, par3 + 1, par4) && this.isFlammable(par1World, par2, par3, par4))
    096                    {
    097                        par1World.setBlockWithNotify(par2, par3 + 1, par4, Block.fire.blockID);
    098                    }
    099                }
    100            }
    101        }
    102    }
    103
    104    /**
    105     * Checks to see if the block is flammable.
    106     */
    107    private boolean isFlammable(World par1World, int par2, int par3, int par4)
    108    {
    109        return par1World.getBlockMaterial(par2, par3, par4).getCanBurn();
    110    }
    111}