package net.minecraft.block;

import java.util.Random;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyInteger;
import net.minecraft.block.state.BlockStateContainer;
import net.minecraft.block.state.IBlockState;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.init.Blocks;
import net.minecraft.init.Items;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.util.math.AxisAlignedBB;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.MathHelper;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;

public class BlockCrops extends BlockBush implements IGrowable
{
    public static final PropertyInteger AGE = PropertyInteger.create("age", 0, 7);
    private static final AxisAlignedBB[] CROPS_AABB = new AxisAlignedBB[] {new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 0.125D, 1.0D), new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 0.25D, 1.0D), new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 0.375D, 1.0D), new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 0.5D, 1.0D), new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 0.625D, 1.0D), new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 0.75D, 1.0D), new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 0.875D, 1.0D), new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 1.0D, 1.0D)};

    protected BlockCrops()
    {
        this.setDefaultState(this.blockState.getBaseState().withProperty(this.getAgeProperty(), Integer.valueOf(0)));
        this.setTickRandomly(true);
        this.setCreativeTab((CreativeTabs)null);
        this.setHardness(0.0F);
        this.setSoundType(SoundType.PLANT);
        this.disableStats();
    }

    public AxisAlignedBB getBoundingBox(IBlockState state, IBlockAccess source, BlockPos pos)
    {
        return CROPS_AABB[((Integer)state.getValue(this.getAgeProperty())).intValue()];
    }

    /**
     * Return true if the block can sustain a Bush
     */
    protected boolean canSustainBush(IBlockState state)
    {
        return state.getBlock() == Blocks.FARMLAND;
    }

    protected PropertyInteger getAgeProperty()
    {
        return AGE;
    }

    public int getMaxAge()
    {
        return 7;
    }

    protected int getAge(IBlockState state)
    {
        return ((Integer)state.getValue(this.getAgeProperty())).intValue();
    }

    public IBlockState withAge(int age)
    {
        return this.getDefaultState().withProperty(this.getAgeProperty(), Integer.valueOf(age));
    }

    public boolean isMaxAge(IBlockState state)
    {
        return ((Integer)state.getValue(this.getAgeProperty())).intValue() >= this.getMaxAge();
    }

    public void updateTick(World worldIn, BlockPos pos, IBlockState state, Random rand)
    {
        super.updateTick(worldIn, pos, state, rand);

        if (!worldIn.isAreaLoaded(pos, 1)) return; // Forge: prevent loading unloaded chunks when checking neighbor's light
        if (worldIn.getLightFromNeighbors(pos.up()) >= 9)
        {
            int i = this.getAge(state);

            if (i < this.getMaxAge())
            {
                float f = getGrowthChance(this, worldIn, pos);

                if(net.minecraftforge.common.ForgeHooks.onCropsGrowPre(worldIn, pos, state, rand.nextInt((int)(25.0F / f) + 1) == 0))
                {
                    worldIn.setBlockState(pos, this.withAge(i + 1), 2);
                    net.minecraftforge.common.ForgeHooks.onCropsGrowPost(worldIn, pos, state, worldIn.getBlockState(pos));
                }
            }
        }
    }

    public void grow(World worldIn, BlockPos pos, IBlockState state)
    {
        int i = this.getAge(state) + this.getBonemealAgeIncrease(worldIn);
        int j = this.getMaxAge();

        if (i > j)
        {
            i = j;
        }

        worldIn.setBlockState(pos, this.withAge(i), 2);
    }

    protected int getBonemealAgeIncrease(World worldIn)
    {
        return MathHelper.getInt(worldIn.rand, 2, 5);
    }

    protected static float getGrowthChance(Block blockIn, World worldIn, BlockPos pos)
    {
        float f = 1.0F;
        BlockPos blockpos = pos.down();

        for (int i = -1; i <= 1; ++i)
        {
            for (int j = -1; j <= 1; ++j)
            {
                float f1 = 0.0F;
                IBlockState iblockstate = worldIn.getBlockState(blockpos.add(i, 0, j));

                if (iblockstate.getBlock().canSustainPlant(iblockstate, worldIn, blockpos.add(i, 0, j), net.minecraft.util.EnumFacing.UP, (net.minecraftforge.common.IPlantable)blockIn))
                {
                    f1 = 1.0F;

                    if (iblockstate.getBlock().isFertile(worldIn, blockpos.add(i, 0, j)))
                    {
                        f1 = 3.0F;
                    }
                }

                if (i != 0 || j != 0)
                {
                    f1 /= 4.0F;
                }

                f += f1;
            }
        }

        BlockPos blockpos1 = pos.north();
        BlockPos blockpos2 = pos.south();
        BlockPos blockpos3 = pos.west();
        BlockPos blockpos4 = pos.east();
        boolean flag = blockIn == worldIn.getBlockState(blockpos3).getBlock() || blockIn == worldIn.getBlockState(blockpos4).getBlock();
        boolean flag1 = blockIn == worldIn.getBlockState(blockpos1).getBlock() || blockIn == worldIn.getBlockState(blockpos2).getBlock();

        if (flag && flag1)
        {
            f /= 2.0F;
        }
        else
        {
            boolean flag2 = blockIn == worldIn.getBlockState(blockpos3.north()).getBlock() || blockIn == worldIn.getBlockState(blockpos4.north()).getBlock() || blockIn == worldIn.getBlockState(blockpos4.south()).getBlock() || blockIn == worldIn.getBlockState(blockpos3.south()).getBlock();

            if (flag2)
            {
                f /= 2.0F;
            }
        }

        return f;
    }

    public boolean canBlockStay(World worldIn, BlockPos pos, IBlockState state)
    {
        IBlockState soil = worldIn.getBlockState(pos.down());
        return (worldIn.getLight(pos) >= 8 || worldIn.canSeeSky(pos)) && soil.getBlock().canSustainPlant(soil, worldIn, pos.down(), net.minecraft.util.EnumFacing.UP, this);
    }

    protected Item getSeed()
    {
        return Items.WHEAT_SEEDS;
    }

    protected Item getCrop()
    {
        return Items.WHEAT;
    }

    @Override
    public void getDrops(net.minecraft.util.NonNullList<ItemStack> drops, net.minecraft.world.IBlockAccess world, BlockPos pos, IBlockState state, int fortune)
    {
        super.getDrops(drops, world, pos, state, 0);
        int age = getAge(state);
        Random rand = world instanceof World ? ((World)world).rand : new Random();

        if (age >= getMaxAge())
        {
            int k = 3 + fortune;

            for (int i = 0; i < 3 + fortune; ++i)
            {
                if (rand.nextInt(2 * getMaxAge()) <= age)
                {
                    drops.add(new ItemStack(this.getSeed(), 1, 0));
                }
            }
        }
    }

    /**
     * Spawns this Block's drops into the World as EntityItems.
     */
    public void dropBlockAsItemWithChance(World worldIn, BlockPos pos, IBlockState state, float chance, int fortune)
    {
        super.dropBlockAsItemWithChance(worldIn, pos, state, chance, fortune);

        if (false && !worldIn.isRemote) // Forge: NOP all this.
        {
            int i = this.getAge(state);

            if (i >= this.getMaxAge())
            {
                int j = 3 + fortune;

                for (int k = 0; k < j; ++k)
                {
                    if (worldIn.rand.nextInt(2 * this.getMaxAge()) <= i)
                    {
                        spawnAsEntity(worldIn, pos, new ItemStack(this.getSeed()));
                    }
                }
            }
        }
    }

    /**
     * Get the Item that this Block should drop when harvested.
     */
    public Item getItemDropped(IBlockState state, Random rand, int fortune)
    {
        return this.isMaxAge(state) ? this.getCrop() : this.getSeed();
    }

    public ItemStack getItem(World worldIn, BlockPos pos, IBlockState state)
    {
        return new ItemStack(this.getSeed());
    }

    /**
     * Whether this IGrowable can grow
     */
    public boolean canGrow(World worldIn, BlockPos pos, IBlockState state, boolean isClient)
    {
        return !this.isMaxAge(state);
    }

    public boolean canUseBonemeal(World worldIn, Random rand, BlockPos pos, IBlockState state)
    {
        return true;
    }

    public void grow(World worldIn, Random rand, BlockPos pos, IBlockState state)
    {
        this.grow(worldIn, pos, state);
    }

    /**
     * Convert the given metadata into a BlockState for this Block
     */
    public IBlockState getStateFromMeta(int meta)
    {
        return this.withAge(meta);
    }

    /**
     * Convert the BlockState into the correct metadata value
     */
    public int getMetaFromState(IBlockState state)
    {
        return this.getAge(state);
    }

    protected BlockStateContainer createBlockState()
    {
        return new BlockStateContainer(this, new IProperty[] {AGE});
    }
}