    001package net.minecraft.entity.monster;
    002
    003import cpw.mods.fml.relauncher.Side;
    004import cpw.mods.fml.relauncher.SideOnly;
    005import java.util.Calendar;
    006import net.minecraft.block.Block;
    007import net.minecraft.entity.Entity;
    008import net.minecraft.entity.EntityLiving;
    009import net.minecraft.entity.EnumCreatureAttribute;
    010import net.minecraft.entity.ai.EntityAIAttackOnCollide;
    011import net.minecraft.entity.ai.EntityAIBreakDoor;
    012import net.minecraft.entity.ai.EntityAIHurtByTarget;
    013import net.minecraft.entity.ai.EntityAILookIdle;
    014import net.minecraft.entity.ai.EntityAIMoveThroughVillage;
    015import net.minecraft.entity.ai.EntityAIMoveTwardsRestriction;
    016import net.minecraft.entity.ai.EntityAINearestAttackableTarget;
    017import net.minecraft.entity.ai.EntityAISwimming;
    018import net.minecraft.entity.ai.EntityAIWander;
    019import net.minecraft.entity.ai.EntityAIWatchClosest;
    020import net.minecraft.entity.passive.EntityVillager;
    021import net.minecraft.entity.player.EntityPlayer;
    022import net.minecraft.item.Item;
    023import net.minecraft.item.ItemStack;
    024import net.minecraft.nbt.NBTTagCompound;
    025import net.minecraft.potion.Potion;
    026import net.minecraft.potion.PotionEffect;
    027import net.minecraft.util.MathHelper;
    028import net.minecraft.world.World;
    029
    030public class EntityZombie extends EntityMob
    031{
    032    /**
    033     * Ticker used to determine the time remaining for this zombie to convert into a villager when cured.
    034     */
    035    private int conversionTime = 0;
    036
    037    public EntityZombie(World par1World)
    038    {
    039        super(par1World);
    040        this.texture = "/mob/zombie.png";
    041        this.moveSpeed = 0.23F;
    042        this.getNavigator().setBreakDoors(true);
    043        this.tasks.addTask(0, new EntityAISwimming(this));
    044        this.tasks.addTask(1, new EntityAIBreakDoor(this));
    045        this.tasks.addTask(2, new EntityAIAttackOnCollide(this, EntityPlayer.class, this.moveSpeed, false));
    046        this.tasks.addTask(3, new EntityAIAttackOnCollide(this, EntityVillager.class, this.moveSpeed, true));
    047        this.tasks.addTask(4, new EntityAIMoveTwardsRestriction(this, this.moveSpeed));
    048        this.tasks.addTask(5, new EntityAIMoveThroughVillage(this, this.moveSpeed, false));
    049        this.tasks.addTask(6, new EntityAIWander(this, this.moveSpeed));
    050        this.tasks.addTask(7, new EntityAIWatchClosest(this, EntityPlayer.class, 8.0F));
    051        this.tasks.addTask(7, new EntityAILookIdle(this));
    052        this.targetTasks.addTask(1, new EntityAIHurtByTarget(this, true));
    053        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityPlayer.class, 16.0F, 0, true));
    054        this.targetTasks.addTask(2, new EntityAINearestAttackableTarget(this, EntityVillager.class, 16.0F, 0, false));
    055    }
    056
    057    protected int func_96121_ay()
    058    {
    059        return 40;
    060    }
    061
    062    /**
    063     * This method returns a value to be applied directly to entity speed, this factor is less than 1 when a slowdown
    064     * potion effect is applied, more than 1 when a haste potion effect is applied and 2 for fleeing entities.
    065     */
    066    public float getSpeedModifier()
    067    {
    068        return super.getSpeedModifier() * (this.isChild() ? 1.5F : 1.0F);
    069    }
    070
    071    protected void entityInit()
    072    {
    073        super.entityInit();
    074        this.getDataWatcher().addObject(12, Byte.valueOf((byte)0));
    075        this.getDataWatcher().addObject(13, Byte.valueOf((byte)0));
    076        this.getDataWatcher().addObject(14, Byte.valueOf((byte)0));
    077    }
    078
    079    @SideOnly(Side.CLIENT)
    080
    081    /**
    082     * Returns the texture's file path as a String.
    083     */
    084    public String getTexture()
    085    {
    086        return this.isVillager() ? "/mob/zombie_villager.png" : "/mob/zombie.png";
    087    }
    088
    089    public int getMaxHealth()
    090    {
    091        return 20;
    092    }
    093
    094    /**
    095     * Returns the current armor value as determined by a call to InventoryPlayer.getTotalArmorValue
    096     */
    097    public int getTotalArmorValue()
    098    {
    099        int i = super.getTotalArmorValue() + 2;
    100
    101        if (i > 20)
    102        {
    103            i = 20;
    104        }
    105
    106        return i;
    107    }
    108
    109    /**
    110     * Returns true if the newer Entity AI code should be run
    111     */
    112    protected boolean isAIEnabled()
    113    {
    114        return true;
    115    }
    116
    117    /**
    118     * If Animal, checks if the age timer is negative
    119     */
    120    public boolean isChild()
    121    {
    122        return this.getDataWatcher().getWatchableObjectByte(12) == 1;
    123    }
    124
    125    /**
    126     * Set whether this zombie is a child.
    127     */
    128    public void setChild(boolean par1)
    129    {
    130        this.getDataWatcher().updateObject(12, Byte.valueOf((byte)1));
    131    }
    132
    133    /**
    134     * Return whether this zombie is a villager.
    135     */
    136    public boolean isVillager()
    137    {
    138        return this.getDataWatcher().getWatchableObjectByte(13) == 1;
    139    }
    140
    141    /**
    142     * Set whether this zombie is a villager.
    143     */
    144    public void setVillager(boolean par1)
    145    {
    146        this.getDataWatcher().updateObject(13, Byte.valueOf((byte)(par1 ? 1 : 0)));
    147    }
    148
    149    /**
    150     * Called frequently so the entity can update its state every tick as required. For example, zombies and skeletons
    151     * use this to react to sunlight and start to burn.
    152     */
    153    public void onLivingUpdate()
    154    {
    155        if (this.worldObj.isDaytime() && !this.worldObj.isRemote && !this.isChild())
    156        {
    157            float f = this.getBrightness(1.0F);
    158
    159            if (f > 0.5F && this.rand.nextFloat() * 30.0F < (f - 0.4F) * 2.0F && this.worldObj.canBlockSeeTheSky(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.posY), MathHelper.floor_double(this.posZ)))
    160            {
    161                boolean flag = true;
    162                ItemStack itemstack = this.getCurrentItemOrArmor(4);
    163
    164                if (itemstack != null)
    165                {
    166                    if (itemstack.isItemStackDamageable())
    167                    {
    168                        itemstack.setItemDamage(itemstack.getItemDamageForDisplay() + this.rand.nextInt(2));
    169
    170                        if (itemstack.getItemDamageForDisplay() >= itemstack.getMaxDamage())
    171                        {
    172                            this.renderBrokenItemStack(itemstack);
    173                            this.setCurrentItemOrArmor(4, (ItemStack)null);
    174                        }
    175                    }
    176
    177                    flag = false;
    178                }
    179
    180                if (flag)
    181                {
    182                    this.setFire(8);
    183                }
    184            }
    185        }
    186
    187        super.onLivingUpdate();
    188    }
    189
    190    /**
    191     * Called to update the entity's position/logic.
    192     */
    193    public void onUpdate()
    194    {
    195        if (!this.worldObj.isRemote && this.isConverting())
    196        {
    197            int i = this.getConversionTimeBoost();
    198            this.conversionTime -= i;
    199
    200            if (this.conversionTime <= 0)
    201            {
    202                this.convertToVillager();
    203            }
    204        }
    205
    206        super.onUpdate();
    207    }
    208
    209    public boolean attackEntityAsMob(Entity par1Entity)
    210    {
    211        boolean flag = super.attackEntityAsMob(par1Entity);
    212
    213        if (flag && this.getHeldItem() == null && this.isBurning() && this.rand.nextFloat() < (float)this.worldObj.difficultySetting * 0.3F)
    214        {
    215            par1Entity.setFire(2 * this.worldObj.difficultySetting);
    216        }
    217
    218        return flag;
    219    }
    220
    221    /**
    222     * Returns the amount of damage a mob should deal.
    223     */
    224    public int getAttackStrength(Entity par1Entity)
    225    {
    226        ItemStack itemstack = this.getHeldItem();
    227        float f = (float)(this.getMaxHealth() - this.getHealth()) / (float)this.getMaxHealth();
    228        int i = 3 + MathHelper.floor_float(f * 4.0F);
    229
    230        if (itemstack != null)
    231        {
    232            i += itemstack.getDamageVsEntity(this);
    233        }
    234
    235        return i;
    236    }
    237
    238    /**
    239     * Returns the sound this mob makes while it's alive.
    240     */
    241    protected String getLivingSound()
    242    {
    243        return "mob.zombie.say";
    244    }
    245
    246    /**
    247     * Returns the sound this mob makes when it is hurt.
    248     */
    249    protected String getHurtSound()
    250    {
    251        return "mob.zombie.hurt";
    252    }
    253
    254    /**
    255     * Returns the sound this mob makes on death.
    256     */
    257    protected String getDeathSound()
    258    {
    259        return "mob.zombie.death";
    260    }
    261
    262    /**
    263     * Plays step sound at given x, y, z for the entity
    264     */
    265    protected void playStepSound(int par1, int par2, int par3, int par4)
    266    {
    267        this.playSound("mob.zombie.step", 0.15F, 1.0F);
    268    }
    269
    270    /**
    271     * Returns the item ID for the item the mob drops on death.
    272     */
    273    protected int getDropItemId()
    274    {
    275        return Item.rottenFlesh.itemID;
    276    }
    277
    278    /**
    279     * Get this Entity's EnumCreatureAttribute
    280     */
    281    public EnumCreatureAttribute getCreatureAttribute()
    282    {
    283        return EnumCreatureAttribute.UNDEAD;
    284    }
    285
    286    protected void dropRareDrop(int par1)
    287    {
    288        switch (this.rand.nextInt(3))
    289        {
    290            case 0:
    291                this.dropItem(Item.ingotIron.itemID, 1);
    292                break;
    293            case 1:
    294                this.dropItem(Item.carrot.itemID, 1);
    295                break;
    296            case 2:
    297                this.dropItem(Item.potato.itemID, 1);
    298        }
    299    }
    300
    301    /**
    302     * Makes entity wear random armor based on difficulty
    303     */
    304    protected void addRandomArmor()
    305    {
    306        super.addRandomArmor();
    307
    308        if (this.rand.nextFloat() < (this.worldObj.difficultySetting == 3 ? 0.05F : 0.01F))
    309        {
    310            int i = this.rand.nextInt(3);
    311
    312            if (i == 0)
    313            {
    314                this.setCurrentItemOrArmor(0, new ItemStack(Item.swordSteel));
    315            }
    316            else
    317            {
    318                this.setCurrentItemOrArmor(0, new ItemStack(Item.shovelSteel));
    319            }
    320        }
    321    }
    322
    323    /**
    324     * (abstract) Protected helper method to write subclass entity data to NBT.
    325     */
    326    public void writeEntityToNBT(NBTTagCompound par1NBTTagCompound)
    327    {
    328        super.writeEntityToNBT(par1NBTTagCompound);
    329
    330        if (this.isChild())
    331        {
    332            par1NBTTagCompound.setBoolean("IsBaby", true);
    333        }
    334
    335        if (this.isVillager())
    336        {
    337            par1NBTTagCompound.setBoolean("IsVillager", true);
    338        }
    339
    340        par1NBTTagCompound.setInteger("ConversionTime", this.isConverting() ? this.conversionTime : -1);
    341    }
    342
    343    /**
    344     * (abstract) Protected helper method to read subclass entity data from NBT.
    345     */
    346    public void readEntityFromNBT(NBTTagCompound par1NBTTagCompound)
    347    {
    348        super.readEntityFromNBT(par1NBTTagCompound);
    349
    350        if (par1NBTTagCompound.getBoolean("IsBaby"))
    351        {
    352            this.setChild(true);
    353        }
    354
    355        if (par1NBTTagCompound.getBoolean("IsVillager"))
    356        {
    357            this.setVillager(true);
    358        }
    359
    360        if (par1NBTTagCompound.hasKey("ConversionTime") && par1NBTTagCompound.getInteger("ConversionTime") > -1)
    361        {
    362            this.startConversion(par1NBTTagCompound.getInteger("ConversionTime"));
    363        }
    364    }
    365
    366    /**
    367     * This method gets called when the entity kills another one.
    368     */
    369    public void onKillEntity(EntityLiving par1EntityLiving)
    370    {
    371        super.onKillEntity(par1EntityLiving);
    372
    373        if (this.worldObj.difficultySetting >= 2 && par1EntityLiving instanceof EntityVillager)
    374        {
    375            if (this.worldObj.difficultySetting == 2 && this.rand.nextBoolean())
    376            {
    377                return;
    378            }
    379
    380            EntityZombie entityzombie = new EntityZombie(this.worldObj);
    381            entityzombie.func_82149_j(par1EntityLiving);
    382            this.worldObj.removeEntity(par1EntityLiving);
    383            entityzombie.initCreature();
    384            entityzombie.setVillager(true);
    385
    386            if (par1EntityLiving.isChild())
    387            {
    388                entityzombie.setChild(true);
    389            }
    390
    391            this.worldObj.spawnEntityInWorld(entityzombie);
    392            this.worldObj.playAuxSFXAtEntity((EntityPlayer)null, 1016, (int)this.posX, (int)this.posY, (int)this.posZ, 0);
    393        }
    394    }
    395
    396    /**
    397     * Initialize this creature.
    398     */
    399    public void initCreature()
    400    {
    401        this.func_98053_h(this.rand.nextFloat() < pickUpLootProability[this.worldObj.difficultySetting]);
    402
    403        if (this.worldObj.rand.nextFloat() < 0.05F)
    404        {
    405            this.setVillager(true);
    406        }
    407
    408        this.addRandomArmor();
    409        this.func_82162_bC();
    410
    411        if (this.getCurrentItemOrArmor(4) == null)
    412        {
    413            Calendar calendar = this.worldObj.getCurrentDate();
    414
    415            if (calendar.get(2) + 1 == 10 && calendar.get(5) == 31 && this.rand.nextFloat() < 0.25F)
    416            {
    417                this.setCurrentItemOrArmor(4, new ItemStack(this.rand.nextFloat() < 0.1F ? Block.pumpkinLantern : Block.pumpkin));
    418                this.equipmentDropChances[4] = 0.0F;
    419            }
    420        }
    421    }
    422
    423    /**
    424     * Called when a player interacts with a mob. e.g. gets milk from a cow, gets into the saddle on a pig.
    425     */
    426    public boolean interact(EntityPlayer par1EntityPlayer)
    427    {
    428        ItemStack itemstack = par1EntityPlayer.getCurrentEquippedItem();
    429
    430        if (itemstack != null && itemstack.getItem() == Item.appleGold && itemstack.getItemDamage() == 0 && this.isVillager() && this.isPotionActive(Potion.weakness))
    431        {
    432            if (!par1EntityPlayer.capabilities.isCreativeMode)
    433            {
    434                --itemstack.stackSize;
    435            }
    436
    437            if (itemstack.stackSize <= 0)
    438            {
    439                par1EntityPlayer.inventory.setInventorySlotContents(par1EntityPlayer.inventory.currentItem, (ItemStack)null);
    440            }
    441
    442            if (!this.worldObj.isRemote)
    443            {
    444                this.startConversion(this.rand.nextInt(2401) + 3600);
    445            }
    446
    447            return true;
    448        }
    449        else
    450        {
    451            return false;
    452        }
    453    }
    454
    455    /**
    456     * Starts converting this zombie into a villager. The zombie converts into a villager after the specified time in
    457     * ticks.
    458     */
    459    protected void startConversion(int par1)
    460    {
    461        this.conversionTime = par1;
    462        this.getDataWatcher().updateObject(14, Byte.valueOf((byte)1));
    463        this.removePotionEffect(Potion.weakness.id);
    464        this.addPotionEffect(new PotionEffect(Potion.damageBoost.id, par1, Math.min(this.worldObj.difficultySetting - 1, 0)));
    465        this.worldObj.setEntityState(this, (byte)16);
    466    }
    467
    468    @SideOnly(Side.CLIENT)
    469    public void handleHealthUpdate(byte par1)
    470    {
    471        if (par1 == 16)
    472        {
    473            this.worldObj.playSound(this.posX + 0.5D, this.posY + 0.5D, this.posZ + 0.5D, "mob.zombie.remedy", 1.0F + this.rand.nextFloat(), this.rand.nextFloat() * 0.7F + 0.3F, false);
    474        }
    475        else
    476        {
    477            super.handleHealthUpdate(par1);
    478        }
    479    }
    480
    481    /**
    482     * Returns whether this zombie is in the process of converting to a villager
    483     */
    484    public boolean isConverting()
    485    {
    486        return this.getDataWatcher().getWatchableObjectByte(14) == 1;
    487    }
    488
    489    /**
    490     * Convert this zombie into a villager.
    491     */
    492    protected void convertToVillager()
    493    {
    494        EntityVillager entityvillager = new EntityVillager(this.worldObj);
    495        entityvillager.func_82149_j(this);
    496        entityvillager.initCreature();
    497        entityvillager.func_82187_q();
    498
    499        if (this.isChild())
    500        {
    501            entityvillager.setGrowingAge(-24000);
    502        }
    503
    504        this.worldObj.removeEntity(this);
    505        this.worldObj.spawnEntityInWorld(entityvillager);
    506        entityvillager.addPotionEffect(new PotionEffect(Potion.confusion.id, 200, 0));
    507        this.worldObj.playAuxSFXAtEntity((EntityPlayer)null, 1017, (int)this.posX, (int)this.posY, (int)this.posZ, 0);
    508    }
    509
    510    /**
    511     * Return the amount of time decremented from conversionTime every tick.
    512     */
    513    protected int getConversionTimeBoost()
    514    {
    515        int i = 1;
    516
    517        if (this.rand.nextFloat() < 0.01F)
    518        {
    519            int j = 0;
    520
    521            for (int k = (int)this.posX - 4; k < (int)this.posX + 4 && j < 14; ++k)
    522            {
    523                for (int l = (int)this.posY - 4; l < (int)this.posY + 4 && j < 14; ++l)
    524                {
    525                    for (int i1 = (int)this.posZ - 4; i1 < (int)this.posZ + 4 && j < 14; ++i1)
    526                    {
    527                        int j1 = this.worldObj.getBlockId(k, l, i1);
    528
    529                        if (j1 == Block.fenceIron.blockID || j1 == Block.bed.blockID)
    530                        {
    531                            if (this.rand.nextFloat() < 0.3F)
    532                            {
    533                                ++i;
    534                            }
    535
    536                            ++j;
    537                        }
    538                    }
    539                }
    540            }
    541        }
    542
    543        return i;
    544    }
    545}