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.setCanPickUpLoot(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}