001package net.minecraft.block;
002
003import cpw.mods.fml.relauncher.Side;
004import cpw.mods.fml.relauncher.SideOnly;
005import java.util.Random;
006import net.minecraft.block.material.Material;
007import net.minecraft.client.renderer.texture.IconRegister;
008import net.minecraft.creativetab.CreativeTabs;
009import net.minecraft.entity.player.EntityPlayer;
010import net.minecraft.item.Item;
011import net.minecraft.item.ItemStack;
012import net.minecraft.stats.StatList;
013import net.minecraft.util.AxisAlignedBB;
014import net.minecraft.world.EnumSkyBlock;
015import net.minecraft.world.IBlockAccess;
016import net.minecraft.world.World;
017
018public class BlockSnow extends Block
019{
020    protected BlockSnow(int par1)
021    {
022        super(par1, Material.snow);
023        this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.125F, 1.0F);
024        this.setTickRandomly(true);
025        this.setCreativeTab(CreativeTabs.tabDecorations);
026        this.func_96478_d(0);
027    }
028
029    @SideOnly(Side.CLIENT)
030
031    /**
032     * When this method is called, your block should register all the icons it needs with the given IconRegister. This
033     * is the only chance you get to register icons.
034     */
035    public void registerIcons(IconRegister par1IconRegister)
036    {
037        this.blockIcon = par1IconRegister.registerIcon("snow");
038    }
039
040    /**
041     * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
042     * cleared to be reused)
043     */
044    public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
045    {
046        int l = par1World.getBlockMetadata(par2, par3, par4) & 7;
047        float f = 0.125F;
048        return AxisAlignedBB.getAABBPool().getAABB((double)par2 + this.minX, (double)par3 + this.minY, (double)par4 + this.minZ, (double)par2 + this.maxX, (double)((float)par3 + (float)l * f), (double)par4 + this.maxZ);
049    }
050
051    /**
052     * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
053     * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
054     */
055    public boolean isOpaqueCube()
056    {
057        return false;
058    }
059
060    /**
061     * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
062     */
063    public boolean renderAsNormalBlock()
064    {
065        return false;
066    }
067
068    /**
069     * Sets the block's bounds for rendering it as an item
070     */
071    public void setBlockBoundsForItemRender()
072    {
073        this.func_96478_d(0);
074    }
075
076    /**
077     * Updates the blocks bounds based on its current state. Args: world, x, y, z
078     */
079    public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
080    {
081        this.func_96478_d(par1IBlockAccess.getBlockMetadata(par2, par3, par4));
082    }
083
084    protected void func_96478_d(int par1)
085    {
086        int j = par1 & 7;
087        float f = (float)(2 * (1 + j)) / 16.0F;
088        this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, f, 1.0F);
089    }
090
091    /**
092     * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
093     */
094    public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
095    {
096        int l = par1World.getBlockId(par2, par3 - 1, par4);        
097        Block block = Block.blocksList[l];
098        if (block == null) return false;
099        if (block == this && (par1World.getBlockMetadata(par2, par3 - 1, par4) & 7) == 7) return true;
100        if (!block.isLeaves(par1World, par2, par3 - 1, par4) && !Block.blocksList[l].isOpaqueCube()) return false;
101        return par1World.getBlockMaterial(par2, par3 - 1, par4).blocksMovement();
102    }
103
104    /**
105     * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
106     * their own) Args: x, y, z, neighbor blockID
107     */
108    public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
109    {
110        this.canSnowStay(par1World, par2, par3, par4);
111    }
112
113    /**
114     * Checks if this snow block can stay at this location.
115     */
116    private boolean canSnowStay(World par1World, int par2, int par3, int par4)
117    {
118        if (!this.canPlaceBlockAt(par1World, par2, par3, par4))
119        {
120            par1World.setBlockToAir(par2, par3, par4);
121            return false;
122        }
123        else
124        {
125            return true;
126        }
127    }
128
129    /**
130     * Called when the player destroys a block with an item that can harvest it. (i, j, k) are the coordinates of the
131     * block and l is the block's subtype/damage.
132     */
133    public void harvestBlock(World par1World, EntityPlayer par2EntityPlayer, int par3, int par4, int par5, int par6)
134    {
135        super.harvestBlock(par1World, par2EntityPlayer, par3, par4, par5, par6);
136        par1World.setBlockToAir(par3, par4, par5);
137    }
138
139    /**
140     * Returns the ID of the items to drop on destruction.
141     */
142    public int idDropped(int par1, Random par2Random, int par3)
143    {
144        return Item.snowball.itemID;
145    }
146
147    /**
148     * Returns the quantity of items to drop on block destruction.
149     */
150    public int quantityDropped(Random par1Random)
151    {
152        return 1;
153    }
154
155    /**
156     * Ticks the block if it's been scheduled
157     */
158    public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
159    {
160        if (par1World.getSavedLightValue(EnumSkyBlock.Block, par2, par3, par4) > 11)
161        {
162            par1World.setBlockToAir(par2, par3, par4);
163        }
164    }
165
166    @SideOnly(Side.CLIENT)
167
168    /**
169     * Returns true if the given side of this block type should be rendered, if the adjacent block is at the given
170     * coordinates.  Args: blockAccess, x, y, z, side
171     */
172    public boolean shouldSideBeRendered(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
173    {
174        return par5 == 1 ? true : super.shouldSideBeRendered(par1IBlockAccess, par2, par3, par4, par5);
175    }
176
177    @Override
178    public int quantityDropped(int meta, int fortune, Random random)
179    {
180        return (meta & 7) + 1;
181    }
182}