    001    package net.minecraft.src;
    002
    003    import cpw.mods.fml.common.Side;
    004    import cpw.mods.fml.common.asm.SideOnly;
    005
    006    public class EntitySpider extends EntityMob
    007    {
    008        public EntitySpider(World par1World)
    009        {
    010            super(par1World);
    011            this.texture = "/mob/spider.png";
    012            this.setSize(1.4F, 0.9F);
    013            this.moveSpeed = 0.8F;
    014        }
    015
    016        protected void entityInit()
    017        {
    018            super.entityInit();
    019            this.dataWatcher.addObject(16, new Byte((byte)0));
    020        }
    021
    022        /**
    023         * Called to update the entity's position/logic.
    024         */
    025        public void onUpdate()
    026        {
    027            super.onUpdate();
    028
    029            if (!this.worldObj.isRemote)
    030            {
    031                this.setBesideClimbableBlock(this.isCollidedHorizontally);
    032            }
    033        }
    034
    035        public int getMaxHealth()
    036        {
    037            return 16;
    038        }
    039
    040        /**
    041         * Returns the Y offset from the entity's position for any entity riding this one.
    042         */
    043        public double getMountedYOffset()
    044        {
    045            return (double)this.height * 0.75D - 0.5D;
    046        }
    047
    048        /**
    049         * Finds the closest player within 16 blocks to attack, or null if this Entity isn't interested in attacking
    050         * (Animals, Spiders at day, peaceful PigZombies).
    051         */
    052        protected Entity findPlayerToAttack()
    053        {
    054            float var1 = this.getBrightness(1.0F);
    055
    056            if (var1 < 0.5F)
    057            {
    058                double var2 = 16.0D;
    059                return this.worldObj.getClosestVulnerablePlayerToEntity(this, var2);
    060            }
    061            else
    062            {
    063                return null;
    064            }
    065        }
    066
    067        /**
    068         * Returns the sound this mob makes while it's alive.
    069         */
    070        protected String getLivingSound()
    071        {
    072            return "mob.spider.say";
    073        }
    074
    075        /**
    076         * Returns the sound this mob makes when it is hurt.
    077         */
    078        protected String getHurtSound()
    079        {
    080            return "mob.spider.say";
    081        }
    082
    083        /**
    084         * Returns the sound this mob makes on death.
    085         */
    086        protected String getDeathSound()
    087        {
    088            return "mob.spider.death";
    089        }
    090
    091        /**
    092         * Plays step sound at given x, y, z for the entity
    093         */
    094        protected void playStepSound(int var1, int var2, int var3, int var4)
    095        {
    096            this.worldObj.playSoundAtEntity(this, "mob.spider.step", 0.15F, 1.0F);
    097        }
    098
    099        /**
    100         * Basic mob attack. Default to touch of death in EntityCreature. Overridden by each mob to define their attack.
    101         */
    102        protected void attackEntity(Entity par1Entity, float par2)
    103        {
    104            float var3 = this.getBrightness(1.0F);
    105
    106            if (var3 > 0.5F && this.rand.nextInt(100) == 0)
    107            {
    108                this.entityToAttack = null;
    109            }
    110            else
    111            {
    112                if (par2 > 2.0F && par2 < 6.0F && this.rand.nextInt(10) == 0)
    113                {
    114                    if (this.onGround)
    115                    {
    116                        double var4 = par1Entity.posX - this.posX;
    117                        double var6 = par1Entity.posZ - this.posZ;
    118                        float var8 = MathHelper.sqrt_double(var4 * var4 + var6 * var6);
    119                        this.motionX = var4 / (double)var8 * 0.5D * 0.800000011920929D + this.motionX * 0.20000000298023224D;
    120                        this.motionZ = var6 / (double)var8 * 0.5D * 0.800000011920929D + this.motionZ * 0.20000000298023224D;
    121                        this.motionY = 0.4000000059604645D;
    122                    }
    123                }
    124                else
    125                {
    126                    super.attackEntity(par1Entity, par2);
    127                }
    128            }
    129        }
    130
    131        /**
    132         * Returns the item ID for the item the mob drops on death.
    133         */
    134        protected int getDropItemId()
    135        {
    136            return Item.silk.shiftedIndex;
    137        }
    138
    139        /**
    140         * Drop 0-2 items of this living's type
    141         */
    142        protected void dropFewItems(boolean par1, int par2)
    143        {
    144            super.dropFewItems(par1, par2);
    145
    146            if (par1 && (this.rand.nextInt(3) == 0 || this.rand.nextInt(1 + par2) > 0))
    147            {
    148                this.dropItem(Item.spiderEye.shiftedIndex, 1);
    149            }
    150        }
    151
    152        /**
    153         * returns true if this entity is by a ladder, false otherwise
    154         */
    155        public boolean isOnLadder()
    156        {
    157            return this.isBesideClimbableBlock();
    158        }
    159
    160        /**
    161         * Sets the Entity inside a web block.
    162         */
    163        public void setInWeb() {}
    164
    165        @SideOnly(Side.CLIENT)
    166
    167        /**
    168         * How large the spider should be scaled.
    169         */
    170        public float spiderScaleAmount()
    171        {
    172            return 1.0F;
    173        }
    174
    175        /**
    176         * Get this Entity's EnumCreatureAttribute
    177         */
    178        public EnumCreatureAttribute getCreatureAttribute()
    179        {
    180            return EnumCreatureAttribute.ARTHROPOD;
    181        }
    182
    183        public boolean isPotionApplicable(PotionEffect par1PotionEffect)
    184        {
    185            return par1PotionEffect.getPotionID() == Potion.poison.id ? false : super.isPotionApplicable(par1PotionEffect);
    186        }
    187
    188        /**
    189         * Returns true if the WatchableObject (Byte) is 0x01 otherwise returns false. The WatchableObject is updated using
    190         * setBesideClimableBlock.
    191         */
    192        public boolean isBesideClimbableBlock()
    193        {
    194            return (this.dataWatcher.getWatchableObjectByte(16) & 1) != 0;
    195        }
    196
    197        /**
    198         * Updates the WatchableObject (Byte) created in entityInit(), setting it to 0x01 if par1 is true or 0x00 if it is
    199         * false.
    200         */
    201        public void setBesideClimbableBlock(boolean par1)
    202        {
    203            byte var2 = this.dataWatcher.getWatchableObjectByte(16);
    204
    205            if (par1)
    206            {
    207                var2 = (byte)(var2 | 1);
    208            }
    209            else
    210            {
    211                var2 &= -2;
    212            }
    213
    214            this.dataWatcher.updateObject(16, Byte.valueOf(var2));
    215        }
    216
    217        /**
    218         * Initialize this creature.
    219         */
    220        public void initCreature()
    221        {
    222            if (this.worldObj.rand.nextInt(100) == 0)
    223            {
    224                EntitySkeleton var1 = new EntitySkeleton(this.worldObj);
    225                var1.setLocationAndAngles(this.posX, this.posY, this.posZ, this.rotationYaw, 0.0F);
    226                var1.initCreature();
    227                this.worldObj.spawnEntityInWorld(var1);
    228                var1.mountEntity(this);
    229            }
    230        }
    231    }