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 EntityItemFrame extends EntityHanging 007 { 008 /** Chance for this item frame's item to drop from the frame. */ 009 private float itemDropChance = 1.0F; 010 011 public EntityItemFrame(World par1World) 012 { 013 super(par1World); 014 } 015 016 public EntityItemFrame(World par1World, int par2, int par3, int par4, int par5) 017 { 018 super(par1World, par2, par3, par4, par5); 019 this.setDirection(par5); 020 } 021 022 protected void entityInit() 023 { 024 this.getDataWatcher().addObjectByDataType(2, 5); 025 this.getDataWatcher().addObject(3, Byte.valueOf((byte)0)); 026 } 027 028 public int func_82329_d() 029 { 030 return 9; 031 } 032 033 public int func_82330_g() 034 { 035 return 9; 036 } 037 038 @SideOnly(Side.CLIENT) 039 040 /** 041 * Checks if the entity is in range to render by using the past in distance and comparing it to its average edge 042 * length * 64 * renderDistanceWeight Args: distance 043 */ 044 public boolean isInRangeToRenderDist(double par1) 045 { 046 double var3 = 16.0D; 047 var3 *= 64.0D * this.renderDistanceWeight; 048 return par1 < var3 * var3; 049 } 050 051 /** 052 * Drop the item currently on this item frame. 053 */ 054 public void dropItemStack() 055 { 056 this.entityDropItem(new ItemStack(Item.itemFrame), 0.0F); 057 ItemStack var1 = this.getDisplayedItem(); 058 059 if (var1 != null && this.rand.nextFloat() < this.itemDropChance) 060 { 061 var1 = var1.copy(); 062 var1.setItemFrame((EntityItemFrame)null); 063 this.entityDropItem(var1, 0.0F); 064 } 065 } 066 067 public ItemStack getDisplayedItem() 068 { 069 return this.getDataWatcher().getWatchableObjectItemStack(2); 070 } 071 072 public void setDisplayedItem(ItemStack par1ItemStack) 073 { 074 par1ItemStack = par1ItemStack.copy(); 075 par1ItemStack.stackSize = 1; 076 par1ItemStack.setItemFrame(this); 077 this.getDataWatcher().updateObject(2, par1ItemStack); 078 this.getDataWatcher().func_82708_h(2); 079 } 080 081 /** 082 * Return the rotation of the item currently on this frame. 083 */ 084 public int getRotation() 085 { 086 return this.getDataWatcher().getWatchableObjectByte(3); 087 } 088 089 public void setItemRotation(int par1) 090 { 091 this.getDataWatcher().updateObject(3, Byte.valueOf((byte)(par1 % 4))); 092 } 093 094 /** 095 * (abstract) Protected helper method to write subclass entity data to NBT. 096 */ 097 public void writeEntityToNBT(NBTTagCompound par1NBTTagCompound) 098 { 099 if (this.getDisplayedItem() != null) 100 { 101 par1NBTTagCompound.setCompoundTag("Item", this.getDisplayedItem().writeToNBT(new NBTTagCompound())); 102 par1NBTTagCompound.setByte("ItemRotation", (byte)this.getRotation()); 103 par1NBTTagCompound.setFloat("ItemDropChance", this.itemDropChance); 104 } 105 106 super.writeEntityToNBT(par1NBTTagCompound); 107 } 108 109 /** 110 * (abstract) Protected helper method to read subclass entity data from NBT. 111 */ 112 public void readEntityFromNBT(NBTTagCompound par1NBTTagCompound) 113 { 114 NBTTagCompound var2 = par1NBTTagCompound.getCompoundTag("Item"); 115 116 if (var2 != null && !var2.hasNoTags()) 117 { 118 this.setDisplayedItem(ItemStack.loadItemStackFromNBT(var2)); 119 this.setItemRotation(par1NBTTagCompound.getByte("ItemRotation")); 120 121 if (par1NBTTagCompound.hasKey("ItemDropChance")) 122 { 123 this.itemDropChance = par1NBTTagCompound.getFloat("ItemDropChance"); 124 } 125 } 126 127 super.readEntityFromNBT(par1NBTTagCompound); 128 } 129 130 /** 131 * Called when a player interacts with a mob. e.g. gets milk from a cow, gets into the saddle on a pig. 132 */ 133 public boolean interact(EntityPlayer par1EntityPlayer) 134 { 135 if (this.getDisplayedItem() == null) 136 { 137 ItemStack var2 = par1EntityPlayer.getHeldItem(); 138 139 if (var2 != null && !this.worldObj.isRemote) 140 { 141 this.setDisplayedItem(var2); 142 143 if (!par1EntityPlayer.capabilities.isCreativeMode && --var2.stackSize <= 0) 144 { 145 par1EntityPlayer.inventory.setInventorySlotContents(par1EntityPlayer.inventory.currentItem, (ItemStack)null); 146 } 147 } 148 } 149 else if (!this.worldObj.isRemote) 150 { 151 this.setItemRotation(this.getRotation() + 1); 152 } 153 154 return true; 155 } 156 }