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510 lines
16 KiB
Java
510 lines
16 KiB
Java
package net.minecraft.entity.item;
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import java.util.Iterator;
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import net.minecraft.block.material.Material;
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import net.minecraft.entity.Entity;
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import net.minecraft.entity.player.EntityPlayer;
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import net.minecraft.init.Blocks;
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import net.minecraft.init.Items;
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import net.minecraft.item.Item;
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import net.minecraft.item.ItemStack;
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import net.minecraft.nbt.NBTTagCompound;
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import net.minecraft.stats.AchievementList;
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import net.minecraft.util.DamageSource;
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import net.minecraft.util.MathHelper;
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import net.minecraft.util.StatCollector;
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import net.minecraft.world.World;
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import net.minecraftforge.common.MinecraftForge;
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import net.minecraftforge.event.entity.item.ItemExpireEvent;
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import net.minecraftforge.event.entity.player.EntityItemPickupEvent;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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import cpw.mods.fml.common.FMLCommonHandler;
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import cpw.mods.fml.common.eventhandler.Event.Result;
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public class EntityItem extends Entity
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{
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private static final Logger logger = LogManager.getLogger();
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/** The age of this EntityItem (used to animate it up and down as well as expire it) */
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public int age;
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public int delayBeforeCanPickup;
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/** The health of this EntityItem. (For example, damage for tools) */
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private int health;
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private String field_145801_f;
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private String field_145802_g;
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/** The EntityItem's random initial float height. */
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public float hoverStart;
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private static final String __OBFID = "CL_00001669";
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/**
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* The maximum age of this EntityItem. The item is expired once this is reached.
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*/
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public int lifespan = 6000;
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public EntityItem(World worldIn, double x, double y, double z)
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{
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super(worldIn);
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this.health = 5;
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this.hoverStart = (float)(Math.random() * Math.PI * 2.0D);
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this.setSize(0.25F, 0.25F);
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this.yOffset = this.height / 2.0F;
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this.setPosition(x, y, z);
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this.rotationYaw = (float)(Math.random() * 360.0D);
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this.motionX = (double)((float)(Math.random() * 0.20000000298023224D - 0.10000000149011612D));
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this.motionY = 0.20000000298023224D;
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this.motionZ = (double)((float)(Math.random() * 0.20000000298023224D - 0.10000000149011612D));
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}
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public EntityItem(World worldIn, double x, double y, double z, ItemStack stack)
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{
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this(worldIn, x, y, z);
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this.setEntityItemStack(stack);
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this.lifespan = (stack.getItem() == null ? 6000 : stack.getItem().getEntityLifespan(stack, worldIn));
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}
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/**
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* returns if this entity triggers Block.onEntityWalking on the blocks they walk on. used for spiders and wolves to
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* prevent them from trampling crops
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*/
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protected boolean canTriggerWalking()
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{
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return false;
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}
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public EntityItem(World p_i1711_1_)
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{
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super(p_i1711_1_);
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this.health = 5;
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this.hoverStart = (float)(Math.random() * Math.PI * 2.0D);
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this.setSize(0.25F, 0.25F);
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this.yOffset = this.height / 2.0F;
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}
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protected void entityInit()
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{
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this.getDataWatcher().addObjectByDataType(10, 5);
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}
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/**
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* Called to update the entity's position/logic.
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*/
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public void onUpdate()
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{
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ItemStack stack = this.getDataWatcher().getWatchableObjectItemStack(10);
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if (stack != null && stack.getItem() != null)
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{
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if (stack.getItem().onEntityItemUpdate(this))
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{
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return;
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}
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}
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if (this.getEntityItem() == null)
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{
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this.setDead();
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}
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else
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{
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super.onUpdate();
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if (this.delayBeforeCanPickup > 0)
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{
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--this.delayBeforeCanPickup;
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}
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this.prevPosX = this.posX;
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this.prevPosY = this.posY;
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this.prevPosZ = this.posZ;
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this.motionY -= 0.03999999910593033D;
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this.noClip = this.func_145771_j(this.posX, (this.boundingBox.minY + this.boundingBox.maxY) / 2.0D, this.posZ);
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this.moveEntity(this.motionX, this.motionY, this.motionZ);
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boolean flag = (int)this.prevPosX != (int)this.posX || (int)this.prevPosY != (int)this.posY || (int)this.prevPosZ != (int)this.posZ;
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if (flag || this.ticksExisted % 25 == 0)
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{
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if (this.worldObj.getBlock(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.posY), MathHelper.floor_double(this.posZ)).getMaterial() == Material.lava)
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{
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this.motionY = 0.20000000298023224D;
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this.motionX = (double)((this.rand.nextFloat() - this.rand.nextFloat()) * 0.2F);
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this.motionZ = (double)((this.rand.nextFloat() - this.rand.nextFloat()) * 0.2F);
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this.playSound("random.fizz", 0.4F, 2.0F + this.rand.nextFloat() * 0.4F);
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}
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if (!this.worldObj.isRemote)
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{
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this.searchForOtherItemsNearby();
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}
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}
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float f = 0.98F;
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if (this.onGround)
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{
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f = this.worldObj.getBlock(MathHelper.floor_double(this.posX), MathHelper.floor_double(this.boundingBox.minY) - 1, MathHelper.floor_double(this.posZ)).slipperiness * 0.98F;
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}
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this.motionX *= (double)f;
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this.motionY *= 0.9800000190734863D;
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this.motionZ *= (double)f;
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if (this.onGround)
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{
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this.motionY *= -0.5D;
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}
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++this.age;
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ItemStack item = getDataWatcher().getWatchableObjectItemStack(10);
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if (!this.worldObj.isRemote && this.age >= lifespan)
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{
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if (item != null)
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{
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ItemExpireEvent event = new ItemExpireEvent(this, (item.getItem() == null ? 6000 : item.getItem().getEntityLifespan(item, worldObj)));
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if (MinecraftForge.EVENT_BUS.post(event))
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{
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lifespan += event.extraLife;
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}
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else
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{
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this.setDead();
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}
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}
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else
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{
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this.setDead();
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}
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}
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if (item != null && item.stackSize <= 0)
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{
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this.setDead();
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}
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}
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}
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/**
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* Looks for other itemstacks nearby and tries to stack them together
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*/
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private void searchForOtherItemsNearby()
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{
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Iterator iterator = this.worldObj.getEntitiesWithinAABB(EntityItem.class, this.boundingBox.expand(0.5D, 0.0D, 0.5D)).iterator();
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while (iterator.hasNext())
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{
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EntityItem entityitem = (EntityItem)iterator.next();
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this.combineItems(entityitem);
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}
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}
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/**
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* Tries to merge this item with the item passed as the parameter. Returns true if successful. Either this item or
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* the other item will be removed from the world.
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*/
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public boolean combineItems(EntityItem p_70289_1_)
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{
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if (p_70289_1_ == this)
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{
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return false;
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}
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else if (p_70289_1_.isEntityAlive() && this.isEntityAlive())
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{
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ItemStack itemstack = this.getEntityItem();
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ItemStack itemstack1 = p_70289_1_.getEntityItem();
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if (itemstack1.getItem() != itemstack.getItem())
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{
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return false;
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}
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else if (itemstack1.hasTagCompound() ^ itemstack.hasTagCompound())
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{
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return false;
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}
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else if (itemstack1.hasTagCompound() && !itemstack1.getTagCompound().equals(itemstack.getTagCompound()))
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{
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return false;
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}
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else if (itemstack1.getItem() == null)
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{
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return false;
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}
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else if (itemstack1.getItem().getHasSubtypes() && itemstack1.getItemDamage() != itemstack.getItemDamage())
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{
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return false;
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}
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else if (itemstack1.stackSize < itemstack.stackSize)
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{
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return p_70289_1_.combineItems(this);
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}
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else if (itemstack1.stackSize + itemstack.stackSize > itemstack1.getMaxStackSize())
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{
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return false;
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}
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else
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{
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itemstack1.stackSize += itemstack.stackSize;
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p_70289_1_.delayBeforeCanPickup = Math.max(p_70289_1_.delayBeforeCanPickup, this.delayBeforeCanPickup);
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p_70289_1_.age = Math.min(p_70289_1_.age, this.age);
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p_70289_1_.setEntityItemStack(itemstack1);
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this.setDead();
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return true;
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}
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}
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else
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{
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return false;
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}
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}
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/**
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* sets the age of the item so that it'll despawn one minute after it has been dropped (instead of five). Used when
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* items are dropped from players in creative mode
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*/
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public void setAgeToCreativeDespawnTime()
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{
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this.age = 4800;
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}
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/**
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* Returns if this entity is in water and will end up adding the waters velocity to the entity
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*/
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public boolean handleWaterMovement()
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{
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return this.worldObj.handleMaterialAcceleration(this.boundingBox, Material.water, this);
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}
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/**
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* Will deal the specified amount of damage to the entity if the entity isn't immune to fire damage. Args:
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* amountDamage
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*/
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protected void dealFireDamage(int amount)
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{
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this.attackEntityFrom(DamageSource.inFire, (float)amount);
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}
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/**
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* Called when the entity is attacked.
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*/
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public boolean attackEntityFrom(DamageSource source, float amount)
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{
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if (this.isEntityInvulnerable())
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{
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return false;
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}
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else if (this.getEntityItem() != null && this.getEntityItem().getItem() == Items.nether_star && source.isExplosion())
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{
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return false;
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}
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else
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{
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this.setBeenAttacked();
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this.health = (int)((float)this.health - amount);
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if (this.health <= 0)
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{
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this.setDead();
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}
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return false;
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}
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}
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/**
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* (abstract) Protected helper method to write subclass entity data to NBT.
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*/
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public void writeEntityToNBT(NBTTagCompound tagCompound)
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{
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tagCompound.setShort("Health", (short)((byte)this.health));
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tagCompound.setShort("Age", (short)this.age);
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tagCompound.setInteger("Lifespan", lifespan);
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if (this.func_145800_j() != null)
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{
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tagCompound.setString("Thrower", this.field_145801_f);
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}
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if (this.func_145798_i() != null)
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{
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tagCompound.setString("Owner", this.field_145802_g);
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}
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if (this.getEntityItem() != null)
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{
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tagCompound.setTag("Item", this.getEntityItem().writeToNBT(new NBTTagCompound()));
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}
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}
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/**
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* (abstract) Protected helper method to read subclass entity data from NBT.
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*/
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public void readEntityFromNBT(NBTTagCompound tagCompund)
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{
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this.health = tagCompund.getShort("Health") & 255;
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this.age = tagCompund.getShort("Age");
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if (tagCompund.hasKey("Owner"))
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{
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this.field_145802_g = tagCompund.getString("Owner");
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}
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if (tagCompund.hasKey("Thrower"))
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{
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this.field_145801_f = tagCompund.getString("Thrower");
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}
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NBTTagCompound nbttagcompound1 = tagCompund.getCompoundTag("Item");
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this.setEntityItemStack(ItemStack.loadItemStackFromNBT(nbttagcompound1));
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ItemStack item = getDataWatcher().getWatchableObjectItemStack(10);
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if (item == null || item.stackSize <= 0)
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{
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this.setDead();
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}
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if (tagCompund.hasKey("Lifespan"))
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{
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lifespan = tagCompund.getInteger("Lifespan");
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}
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}
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/**
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* Called by a player entity when they collide with an entity
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*/
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public void onCollideWithPlayer(EntityPlayer entityIn)
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{
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if (!this.worldObj.isRemote)
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{
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if (this.delayBeforeCanPickup > 0)
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{
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return;
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}
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EntityItemPickupEvent event = new EntityItemPickupEvent(entityIn, this);
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if (MinecraftForge.EVENT_BUS.post(event))
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{
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return;
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}
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ItemStack itemstack = this.getEntityItem();
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int i = itemstack.stackSize;
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if (this.delayBeforeCanPickup <= 0 && (this.field_145802_g == null || lifespan - this.age <= 200 || this.field_145802_g.equals(entityIn.getCommandSenderName())) && (event.getResult() == Result.ALLOW || i <= 0 || entityIn.inventory.addItemStackToInventory(itemstack)))
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{
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if (itemstack.getItem() == Item.getItemFromBlock(Blocks.log))
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{
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entityIn.triggerAchievement(AchievementList.mineWood);
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}
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if (itemstack.getItem() == Item.getItemFromBlock(Blocks.log2))
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{
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entityIn.triggerAchievement(AchievementList.mineWood);
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}
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if (itemstack.getItem() == Items.leather)
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{
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entityIn.triggerAchievement(AchievementList.killCow);
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}
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if (itemstack.getItem() == Items.diamond)
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{
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entityIn.triggerAchievement(AchievementList.diamonds);
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}
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if (itemstack.getItem() == Items.blaze_rod)
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{
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entityIn.triggerAchievement(AchievementList.blazeRod);
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}
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if (itemstack.getItem() == Items.diamond && this.func_145800_j() != null)
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{
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EntityPlayer entityplayer1 = this.worldObj.getPlayerEntityByName(this.func_145800_j());
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if (entityplayer1 != null && entityplayer1 != entityIn)
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{
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entityplayer1.triggerAchievement(AchievementList.field_150966_x);
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}
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}
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FMLCommonHandler.instance().firePlayerItemPickupEvent(entityIn, this);
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this.worldObj.playSoundAtEntity(entityIn, "random.pop", 0.2F, ((this.rand.nextFloat() - this.rand.nextFloat()) * 0.7F + 1.0F) * 2.0F);
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entityIn.onItemPickup(this, i);
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if (itemstack.stackSize <= 0)
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{
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this.setDead();
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}
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}
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}
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}
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/**
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* Gets the name of this command sender (usually username, but possibly "Rcon")
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*/
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public String getCommandSenderName()
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{
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return StatCollector.translateToLocal("item." + this.getEntityItem().getUnlocalizedName());
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}
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/**
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* If returns false, the item will not inflict any damage against entities.
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*/
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public boolean canAttackWithItem()
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{
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return false;
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}
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/**
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* Teleports the entity to another dimension. Params: Dimension number to teleport to
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*/
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public void travelToDimension(int dimensionId)
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{
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super.travelToDimension(dimensionId);
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if (!this.worldObj.isRemote)
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{
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this.searchForOtherItemsNearby();
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}
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}
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/**
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* Returns the ItemStack corresponding to the Entity (Note: if no item exists, will log an error but still return an
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* ItemStack containing Block.stone)
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*/
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public ItemStack getEntityItem()
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{
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ItemStack itemstack = this.getDataWatcher().getWatchableObjectItemStack(10);
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return itemstack == null ? new ItemStack(Blocks.stone) : itemstack;
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}
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/**
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* Sets the ItemStack for this entity
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*/
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public void setEntityItemStack(ItemStack p_92058_1_)
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{
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this.getDataWatcher().updateObject(10, p_92058_1_);
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this.getDataWatcher().setObjectWatched(10);
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}
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public String func_145798_i()
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{
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return this.field_145802_g;
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}
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public void func_145797_a(String p_145797_1_)
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{
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this.field_145802_g = p_145797_1_;
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}
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public String func_145800_j()
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{
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return this.field_145801_f;
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}
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public void func_145799_b(String p_145799_1_)
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{
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this.field_145801_f = p_145799_1_;
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}
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} |