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}