    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.Entity;
    010import net.minecraft.util.AxisAlignedBB;
    011import net.minecraft.world.IBlockAccess;
    012import net.minecraft.world.World;
    013
    014public abstract class BlockBasePressurePlate extends Block
    015{
    016    private String pressurePlateIconName;
    017
    018    protected BlockBasePressurePlate(int par1, String par2Str, Material par3Material)
    019    {
    020        super(par1, par3Material);
    021        this.pressurePlateIconName = par2Str;
    022        this.setCreativeTab(CreativeTabs.tabRedstone);
    023        this.setTickRandomly(true);
    024        this.func_94353_c_(this.getMetaFromWeight(15));
    025    }
    026
    027    /**
    028     * Updates the blocks bounds based on its current state. Args: world, x, y, z
    029     */
    030    public void setBlockBoundsBasedOnState(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
    031    {
    032        this.func_94353_c_(par1IBlockAccess.getBlockMetadata(par2, par3, par4));
    033    }
    034
    035    protected void func_94353_c_(int par1)
    036    {
    037        boolean flag = this.getPowerSupply(par1) > 0;
    038        float f = 0.0625F;
    039
    040        if (flag)
    041        {
    042            this.setBlockBounds(f, 0.0F, f, 1.0F - f, 0.03125F, 1.0F - f);
    043        }
    044        else
    045        {
    046            this.setBlockBounds(f, 0.0F, f, 1.0F - f, 0.0625F, 1.0F - f);
    047        }
    048    }
    049
    050    /**
    051     * How many world ticks before ticking
    052     */
    053    public int tickRate(World par1World)
    054    {
    055        return 20;
    056    }
    057
    058    /**
    059     * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
    060     * cleared to be reused)
    061     */
    062    public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
    063    {
    064        return null;
    065    }
    066
    067    /**
    068     * Is this block (a) opaque and (b) a full 1m cube?  This determines whether or not to render the shared face of two
    069     * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
    070     */
    071    public boolean isOpaqueCube()
    072    {
    073        return false;
    074    }
    075
    076    /**
    077     * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
    078     */
    079    public boolean renderAsNormalBlock()
    080    {
    081        return false;
    082    }
    083
    084    public boolean getBlocksMovement(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
    085    {
    086        return true;
    087    }
    088
    089    /**
    090     * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
    091     */
    092    public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
    093    {
    094        return par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) || BlockFence.isIdAFence(par1World.getBlockId(par2, par3 - 1, par4));
    095    }
    096
    097    /**
    098     * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
    099     * their own) Args: x, y, z, neighbor blockID
    100     */
    101    public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
    102    {
    103        boolean flag = false;
    104
    105        if (!par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) && !BlockFence.isIdAFence(par1World.getBlockId(par2, par3 - 1, par4)))
    106        {
    107            flag = true;
    108        }
    109
    110        if (flag)
    111        {
    112            this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
    113            par1World.setBlockToAir(par2, par3, par4);
    114        }
    115    }
    116
    117    /**
    118     * Ticks the block if it's been scheduled
    119     */
    120    public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
    121    {
    122        if (!par1World.isRemote)
    123        {
    124            int l = this.getPowerSupply(par1World.getBlockMetadata(par2, par3, par4));
    125
    126            if (l > 0)
    127            {
    128                this.setStateIfMobInteractsWithPlate(par1World, par2, par3, par4, l);
    129            }
    130        }
    131    }
    132
    133    /**
    134     * Triggered whenever an entity collides with this block (enters into the block). Args: world, x, y, z, entity
    135     */
    136    public void onEntityCollidedWithBlock(World par1World, int par2, int par3, int par4, Entity par5Entity)
    137    {
    138        if (!par1World.isRemote)
    139        {
    140            int l = this.getPowerSupply(par1World.getBlockMetadata(par2, par3, par4));
    141
    142            if (l == 0)
    143            {
    144                this.setStateIfMobInteractsWithPlate(par1World, par2, par3, par4, l);
    145            }
    146        }
    147    }
    148
    149    /**
    150     * Checks if there are mobs on the plate. If a mob is on the plate and it is off, it turns it on, and vice versa.
    151     */
    152    protected void setStateIfMobInteractsWithPlate(World par1World, int par2, int par3, int par4, int par5)
    153    {
    154        int i1 = this.getPlateState(par1World, par2, par3, par4);
    155        boolean flag = par5 > 0;
    156        boolean flag1 = i1 > 0;
    157
    158        if (par5 != i1)
    159        {
    160            par1World.setBlockMetadataWithNotify(par2, par3, par4, this.getMetaFromWeight(i1), 2);
    161            this.func_94354_b_(par1World, par2, par3, par4);
    162            par1World.markBlockRangeForRenderUpdate(par2, par3, par4, par2, par3, par4);
    163        }
    164
    165        if (!flag1 && flag)
    166        {
    167            par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.1D, (double)par4 + 0.5D, "random.click", 0.3F, 0.5F);
    168        }
    169        else if (flag1 && !flag)
    170        {
    171            par1World.playSoundEffect((double)par2 + 0.5D, (double)par3 + 0.1D, (double)par4 + 0.5D, "random.click", 0.3F, 0.6F);
    172        }
    173
    174        if (flag1)
    175        {
    176            par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate(par1World));
    177        }
    178    }
    179
    180    protected AxisAlignedBB getSensitiveAABB(int par1, int par2, int par3)
    181    {
    182        float f = 0.125F;
    183        return AxisAlignedBB.getAABBPool().getAABB((double)((float)par1 + f), (double)par2, (double)((float)par3 + f), (double)((float)(par1 + 1) - f), (double)par2 + 0.25D, (double)((float)(par3 + 1) - f));
    184    }
    185
    186    /**
    187     * ejects contained items into the world, and notifies neighbours of an update, as appropriate
    188     */
    189    public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
    190    {
    191        if (this.getPowerSupply(par6) > 0)
    192        {
    193            this.func_94354_b_(par1World, par2, par3, par4);
    194        }
    195
    196        super.breakBlock(par1World, par2, par3, par4, par5, par6);
    197    }
    198
    199    protected void func_94354_b_(World par1World, int par2, int par3, int par4)
    200    {
    201        par1World.notifyBlocksOfNeighborChange(par2, par3, par4, this.blockID);
    202        par1World.notifyBlocksOfNeighborChange(par2, par3 - 1, par4, this.blockID);
    203    }
    204
    205    /**
    206     * Returns true if the block is emitting indirect/weak redstone power on the specified side. If isBlockNormalCube
    207     * returns true, standard redstone propagation rules will apply instead and this will not be called. Args: World, X,
    208     * Y, Z, side. Note that the side is reversed - eg it is 1 (up) when checking the bottom of the block.
    209     */
    210    public int isProvidingWeakPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    211    {
    212        return this.getPowerSupply(par1IBlockAccess.getBlockMetadata(par2, par3, par4));
    213    }
    214
    215    /**
    216     * Returns true if the block is emitting direct/strong redstone power on the specified side. Args: World, X, Y, Z,
    217     * side. Note that the side is reversed - eg it is 1 (up) when checking the bottom of the block.
    218     */
    219    public int isProvidingStrongPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
    220    {
    221        return par5 == 1 ? this.getPowerSupply(par1IBlockAccess.getBlockMetadata(par2, par3, par4)) : 0;
    222    }
    223
    224    /**
    225     * Can this block provide power. Only wire currently seems to have this change based on its state.
    226     */
    227    public boolean canProvidePower()
    228    {
    229        return true;
    230    }
    231
    232    /**
    233     * Sets the block's bounds for rendering it as an item
    234     */
    235    public void setBlockBoundsForItemRender()
    236    {
    237        float f = 0.5F;
    238        float f1 = 0.125F;
    239        float f2 = 0.5F;
    240        this.setBlockBounds(0.5F - f, 0.5F - f1, 0.5F - f2, 0.5F + f, 0.5F + f1, 0.5F + f2);
    241    }
    242
    243    /**
    244     * Returns the mobility information of the block, 0 = free, 1 = can't push but can move over, 2 = total immobility
    245     * and stop pistons
    246     */
    247    public int getMobilityFlag()
    248    {
    249        return 1;
    250    }
    251
    252    /**
    253     * Returns the current state of the pressure plate. Returns a value between 0 and 15 based on the number of items on
    254     * it.
    255     */
    256    protected abstract int getPlateState(World world, int i, int j, int k);
    257
    258    /**
    259     * Argument is metadata. Returns power level (0-15)
    260     */
    261    protected abstract int getPowerSupply(int i);
    262
    263    /**
    264     * Argument is weight (0-15). Return the metadata to be set because of it.
    265     */
    266    protected abstract int getMetaFromWeight(int i);
    267
    268    @SideOnly(Side.CLIENT)
    269
    270    /**
    271     * When this method is called, your block should register all the icons it needs with the given IconRegister. This
    272     * is the only chance you get to register icons.
    273     */
    274    public void registerIcons(IconRegister par1IconRegister)
    275    {
    276        this.blockIcon = par1IconRegister.registerIcon(this.pressurePlateIconName);
    277    }
    278}