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.entity.player.EntityPlayer;
008import net.minecraft.tileentity.TileEntity;
009import net.minecraft.tileentity.TileEntityPiston;
010import net.minecraft.util.AxisAlignedBB;
011import net.minecraft.util.Facing;
012import net.minecraft.world.IBlockAccess;
013import net.minecraft.world.World;
014
015public class BlockPistonMoving extends BlockContainer
016{
017    public BlockPistonMoving(int par1)
018    {
019        super(par1, Material.piston);
020        this.setHardness(-1.0F);
021    }
022
023    /**
024     * Returns a new instance of a block's tile entity class. Called on placing the block.
025     */
026    public TileEntity createNewTileEntity(World par1World)
027    {
028        return null;
029    }
030
031    /**
032     * Called whenever the block is added into the world. Args: world, x, y, z
033     */
034    public void onBlockAdded(World par1World, int par2, int par3, int par4) {}
035
036    /**
037     * ejects contained items into the world, and notifies neighbours of an update, as appropriate
038     */
039    public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
040    {
041        TileEntity var7 = par1World.getBlockTileEntity(par2, par3, par4);
042
043        if (var7 instanceof TileEntityPiston)
044        {
045            ((TileEntityPiston)var7).clearPistonTileEntity();
046        }
047        else
048        {
049            super.breakBlock(par1World, par2, par3, par4, par5, par6);
050        }
051    }
052
053    /**
054     * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
055     */
056    public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
057    {
058        return false;
059    }
060
061    /**
062     * checks to see if you can place this block can be placed on that side of a block: BlockLever overrides
063     */
064    public boolean canPlaceBlockOnSide(World par1World, int par2, int par3, int par4, int par5)
065    {
066        return false;
067    }
068
069    /**
070     * The type of render function that is called for this block
071     */
072    public int getRenderType()
073    {
074        return -1;
075    }
076
077    /**
078     * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
079     * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
080     */
081    public boolean isOpaqueCube()
082    {
083        return false;
084    }
085
086    /**
087     * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
088     */
089    public boolean renderAsNormalBlock()
090    {
091        return false;
092    }
093
094    /**
095     * Called upon block activation (right click on the block.)
096     */
097    public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
098    {
099        if (!par1World.isRemote && par1World.getBlockTileEntity(par2, par3, par4) == null)
100        {
101            par1World.setBlockWithNotify(par2, par3, par4, 0);
102            return true;
103        }
104        else
105        {
106            return false;
107        }
108    }
109
110    /**
111     * Returns the ID of the items to drop on destruction.
112     */
113    public int idDropped(int par1, Random par2Random, int par3)
114    {
115        return 0;
116    }
117
118    /**
119     * Drops the block items with a specified chance of dropping the specified items
120     */
121    public void dropBlockAsItemWithChance(World par1World, int par2, int par3, int par4, int par5, float par6, int par7)
122    {
123        if (!par1World.isRemote)
124        {
125            TileEntityPiston var8 = this.getTileEntityAtLocation(par1World, par2, par3, par4);
126
127            if (var8 != null)
128            {
129                Block.blocksList[var8.getStoredBlockID()].dropBlockAsItem(par1World, par2, par3, par4, var8.getBlockMetadata(), 0);
130            }
131        }
132    }
133
134    /**
135     * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
136     * their own) Args: x, y, z, neighbor blockID
137     */
138    public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
139    {
140        if (!par1World.isRemote && par1World.getBlockTileEntity(par2, par3, par4) == null)
141        {
142            ;
143        }
144    }
145
146    /**
147     * gets a new TileEntityPiston created with the arguments provided.
148     */
149    public static TileEntity getTileEntity(int par0, int par1, int par2, boolean par3, boolean par4)
150    {
151        return new TileEntityPiston(par0, par1, par2, par3, par4);
152    }
153
154    /**
155     * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
156     * cleared to be reused)
157     */
158    public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
159    {
160        TileEntityPiston var5 = this.getTileEntityAtLocation(par1World, par2, par3, par4);
161
162        if (var5 == null)
163        {
164            return null;
165        }
166        else
167        {
168            float var6 = var5.getProgress(0.0F);
169
170            if (var5.isExtending())
171            {
172                var6 = 1.0F - var6;
173            }
174
175            return this.getAxisAlignedBB(par1World, par2, par3, par4, var5.getStoredBlockID(), var6, var5.getPistonOrientation());
176        }
177    }
178
179    /**
180     * Updates the blocks bounds based on its current state. Args: world, x, y, z
181     */
182    public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
183    {
184        TileEntityPiston var5 = this.getTileEntityAtLocation(par1IBlockAccess, par2, par3, par4);
185
186        if (var5 != null)
187        {
188            Block var6 = Block.blocksList[var5.getStoredBlockID()];
189
190            if (var6 == null || var6 == this)
191            {
192                return;
193            }
194
195            var6.setBlockBoundsBasedOnState(par1IBlockAccess, par2, par3, par4);
196            float var7 = var5.getProgress(0.0F);
197
198            if (var5.isExtending())
199            {
200                var7 = 1.0F - var7;
201            }
202
203            int var8 = var5.getPistonOrientation();
204            this.minX = var6.getBlockBoundsMinX() - (double)((float)Facing.offsetsXForSide[var8] * var7);
205            this.minY = var6.getBlockBoundsMinY() - (double)((float)Facing.offsetsYForSide[var8] * var7);
206            this.minZ = var6.getBlockBoundsMinZ() - (double)((float)Facing.offsetsZForSide[var8] * var7);
207            this.maxX = var6.getBlockBoundsMaxX() - (double)((float)Facing.offsetsXForSide[var8] * var7);
208            this.maxY = var6.getBlockBoundsMaxY() - (double)((float)Facing.offsetsYForSide[var8] * var7);
209            this.maxZ = var6.getBlockBoundsMaxZ() - (double)((float)Facing.offsetsZForSide[var8] * var7);
210        }
211    }
212
213    public AxisAlignedBB getAxisAlignedBB(World par1World, int par2, int par3, int par4, int par5, float par6, int par7)
214    {
215        if (par5 != 0 && par5 != this.blockID)
216        {
217            AxisAlignedBB var8 = Block.blocksList[par5].getCollisionBoundingBoxFromPool(par1World, par2, par3, par4);
218
219            if (var8 == null)
220            {
221                return null;
222            }
223            else
224            {
225                if (Facing.offsetsXForSide[par7] < 0)
226                {
227                    var8.minX -= (double)((float)Facing.offsetsXForSide[par7] * par6);
228                }
229                else
230                {
231                    var8.maxX -= (double)((float)Facing.offsetsXForSide[par7] * par6);
232                }
233
234                if (Facing.offsetsYForSide[par7] < 0)
235                {
236                    var8.minY -= (double)((float)Facing.offsetsYForSide[par7] * par6);
237                }
238                else
239                {
240                    var8.maxY -= (double)((float)Facing.offsetsYForSide[par7] * par6);
241                }
242
243                if (Facing.offsetsZForSide[par7] < 0)
244                {
245                    var8.minZ -= (double)((float)Facing.offsetsZForSide[par7] * par6);
246                }
247                else
248                {
249                    var8.maxZ -= (double)((float)Facing.offsetsZForSide[par7] * par6);
250                }
251
252                return var8;
253            }
254        }
255        else
256        {
257            return null;
258        }
259    }
260
261    /**
262     * gets the piston tile entity at the specified location
263     */
264    private TileEntityPiston getTileEntityAtLocation(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
265    {
266        TileEntity var5 = par1IBlockAccess.getBlockTileEntity(par2, par3, par4);
267        return var5 instanceof TileEntityPiston ? (TileEntityPiston)var5 : null;
268    }
269
270    @SideOnly(Side.CLIENT)
271
272    /**
273     * only called by clickMiddleMouseButton , and passed to inventory.setCurrentItem (along with isCreative)
274     */
275    public int idPicked(World par1World, int par2, int par3, int par4)
276    {
277        return 0;
278    }
279}