001    package net.minecraft.block;
002    
003    import cpw.mods.fml.relauncher.Side;
004    import cpw.mods.fml.relauncher.SideOnly;
005    import java.util.Random;
006    import net.minecraft.block.material.Material;
007    import net.minecraft.entity.Entity;
008    import net.minecraft.entity.player.EntityPlayer;
009    import net.minecraft.util.AxisAlignedBB;
010    import net.minecraft.world.World;
011    
012    import net.minecraftforge.common.ForgeDirection;
013    import net.minecraftforge.common.IPlantable;
014    
015    public class BlockFarmland extends Block
016    {
017        protected BlockFarmland(int par1)
018        {
019            super(par1, Material.ground);
020            this.blockIndexInTexture = 87;
021            this.setTickRandomly(true);
022            this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.9375F, 1.0F);
023            this.setLightOpacity(255);
024        }
025    
026        /**
027         * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
028         * cleared to be reused)
029         */
030        public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
031        {
032            return AxisAlignedBB.getAABBPool().addOrModifyAABBInPool((double)(par2 + 0), (double)(par3 + 0), (double)(par4 + 0), (double)(par2 + 1), (double)(par3 + 1), (double)(par4 + 1));
033        }
034    
035        /**
036         * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
037         * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
038         */
039        public boolean isOpaqueCube()
040        {
041            return false;
042        }
043    
044        /**
045         * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
046         */
047        public boolean renderAsNormalBlock()
048        {
049            return false;
050        }
051    
052        /**
053         * From the specified side and block metadata retrieves the blocks texture. Args: side, metadata
054         */
055        public int getBlockTextureFromSideAndMetadata(int par1, int par2)
056        {
057            return par1 == 1 && par2 > 0 ? this.blockIndexInTexture - 1 : (par1 == 1 ? this.blockIndexInTexture : 2);
058        }
059    
060        /**
061         * Ticks the block if it's been scheduled
062         */
063        public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
064        {
065            if (!this.isWaterNearby(par1World, par2, par3, par4) && !par1World.canLightningStrikeAt(par2, par3 + 1, par4))
066            {
067                int var6 = par1World.getBlockMetadata(par2, par3, par4);
068    
069                if (var6 > 0)
070                {
071                    par1World.setBlockMetadataWithNotify(par2, par3, par4, var6 - 1);
072                }
073                else if (!this.isCropsNearby(par1World, par2, par3, par4))
074                {
075                    par1World.setBlockWithNotify(par2, par3, par4, Block.dirt.blockID);
076                }
077            }
078            else
079            {
080                par1World.setBlockMetadataWithNotify(par2, par3, par4, 7);
081            }
082        }
083    
084        /**
085         * Block's chance to react to an entity falling on it.
086         */
087        public void onFallenUpon(World par1World, int par2, int par3, int par4, Entity par5Entity, float par6)
088        {
089            if (!par1World.isRemote && par1World.rand.nextFloat() < par6 - 0.5F)
090            {
091                if (!(par5Entity instanceof EntityPlayer) && !par1World.getGameRules().getGameRuleBooleanValue("mobGriefing"))
092                {
093                    return;
094                }
095    
096                par1World.setBlockWithNotify(par2, par3, par4, Block.dirt.blockID);
097            }
098        }
099    
100        /**
101         * returns true if there is at least one cropblock nearby (x-1 to x+1, y+1, z-1 to z+1)
102         */
103        private boolean isCropsNearby(World par1World, int par2, int par3, int par4)
104        {
105            byte var5 = 0;
106    
107            for (int var6 = par2 - var5; var6 <= par2 + var5; ++var6)
108            {
109                for (int var7 = par4 - var5; var7 <= par4 + var5; ++var7)
110                {
111                    int var8 = par1World.getBlockId(var6, par3 + 1, var7);
112    
113                    Block plant = blocksList[var8];
114                    if (plant instanceof IPlantable && canSustainPlant(par1World, par2, par3, par4, ForgeDirection.UP, (IPlantable)plant))
115                    {
116                        return true;
117                    }
118                }
119            }
120    
121            return false;
122        }
123    
124        /**
125         * returns true if there's water nearby (x-4 to x+4, y to y+1, k-4 to k+4)
126         */
127        private boolean isWaterNearby(World par1World, int par2, int par3, int par4)
128        {
129            for (int var5 = par2 - 4; var5 <= par2 + 4; ++var5)
130            {
131                for (int var6 = par3; var6 <= par3 + 1; ++var6)
132                {
133                    for (int var7 = par4 - 4; var7 <= par4 + 4; ++var7)
134                    {
135                        if (par1World.getBlockMaterial(var5, var6, var7) == Material.water)
136                        {
137                            return true;
138                        }
139                    }
140                }
141            }
142    
143            return false;
144        }
145    
146        /**
147         * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
148         * their own) Args: x, y, z, neighbor blockID
149         */
150        public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
151        {
152            super.onNeighborBlockChange(par1World, par2, par3, par4, par5);
153            Material var6 = par1World.getBlockMaterial(par2, par3 + 1, par4);
154    
155            if (var6.isSolid())
156            {
157                par1World.setBlockWithNotify(par2, par3, par4, Block.dirt.blockID);
158            }
159        }
160    
161        /**
162         * Returns the ID of the items to drop on destruction.
163         */
164        public int idDropped(int par1, Random par2Random, int par3)
165        {
166            return Block.dirt.idDropped(0, par2Random, par3);
167        }
168    
169        @SideOnly(Side.CLIENT)
170    
171        /**
172         * only called by clickMiddleMouseButton , and passed to inventory.setCurrentItem (along with isCreative)
173         */
174        public int idPicked(World par1World, int par2, int par3, int par4)
175        {
176            return Block.dirt.blockID;
177        }
178    }