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