    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 l = par1World.getBlockMetadata(par2, par3, par4);
    046        par1World.setBlock(par2, par3, par4, this.blockID - 1, l, 2);
    047        par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID - 1, this.tickRate(par1World));
    048    }
    049
    050    /**
    051     * Ticks the block if it's been scheduled
    052     */
    053    public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    054    {
    055        if (this.blockMaterial == Material.lava)
    056        {
    057            int l = par5Random.nextInt(3);
    058            int i1;
    059            int j1;
    060
    061            for (i1 = 0; i1 < l; ++i1)
    062            {
    063                par2 += par5Random.nextInt(3) - 1;
    064                ++par3;
    065                par4 += par5Random.nextInt(3) - 1;
    066                j1 = par1World.getBlockId(par2, par3, par4);
    067
    068                if (j1 == 0)
    069                {
    070                    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))
    071                    {
    072                        par1World.setBlock(par2, par3, par4, Block.fire.blockID);
    073                        return;
    074                    }
    075                }
    076                else if (Block.blocksList[j1].blockMaterial.blocksMovement())
    077                {
    078                    return;
    079                }
    080            }
    081
    082            if (l == 0)
    083            {
    084                i1 = par2;
    085                j1 = par4;
    086
    087                for (int k1 = 0; k1 < 3; ++k1)
    088                {
    089                    par2 = i1 + par5Random.nextInt(3) - 1;
    090                    par4 = j1 + par5Random.nextInt(3) - 1;
    091
    092                    if (par1World.isAirBlock(par2, par3 + 1, par4) && this.isFlammable(par1World, par2, par3, par4))
    093                    {
    094                        par1World.setBlock(par2, par3 + 1, par4, Block.fire.blockID);
    095                    }
    096                }
    097            }
    098        }
    099    }
    100
    101    /**
    102     * Checks to see if the block is flammable.
    103     */
    104    private boolean isFlammable(World par1World, int par2, int par3, int par4)
    105    {
    106        return par1World.getBlockMaterial(par2, par3, par4).getCanBurn();
    107    }
    108}