001package net.minecraft.block; 002 003import cpw.mods.fml.relauncher.Side; 004import cpw.mods.fml.relauncher.SideOnly; 005import java.util.Random; 006import net.minecraft.block.material.Material; 007import net.minecraft.client.renderer.texture.IconRegister; 008import net.minecraft.entity.EntityLiving; 009import net.minecraft.entity.item.EntityItem; 010import net.minecraft.entity.player.EntityPlayer; 011import net.minecraft.inventory.Container; 012import net.minecraft.inventory.IInventory; 013import net.minecraft.item.ItemStack; 014import net.minecraft.nbt.NBTTagCompound; 015import net.minecraft.tileentity.TileEntity; 016import net.minecraft.tileentity.TileEntityFurnace; 017import net.minecraft.util.Icon; 018import net.minecraft.util.MathHelper; 019import net.minecraft.world.World; 020 021public class BlockFurnace extends BlockContainer 022{ 023 /** 024 * Is the random generator used by furnace to drop the inventory contents in random directions. 025 */ 026 private final Random furnaceRand = new Random(); 027 028 /** True if this is an active furnace, false if idle */ 029 private final boolean isActive; 030 031 /** 032 * This flag is used to prevent the furnace inventory to be dropped upon block removal, is used internally when the 033 * furnace block changes from idle to active and vice-versa. 034 */ 035 private static boolean keepFurnaceInventory = false; 036 @SideOnly(Side.CLIENT) 037 private Icon field_94458_cO; 038 @SideOnly(Side.CLIENT) 039 private Icon field_94459_cP; 040 041 protected BlockFurnace(int par1, boolean par2) 042 { 043 super(par1, Material.rock); 044 this.isActive = par2; 045 } 046 047 /** 048 * Returns the ID of the items to drop on destruction. 049 */ 050 public int idDropped(int par1, Random par2Random, int par3) 051 { 052 return Block.furnaceIdle.blockID; 053 } 054 055 /** 056 * Called whenever the block is added into the world. Args: world, x, y, z 057 */ 058 public void onBlockAdded(World par1World, int par2, int par3, int par4) 059 { 060 super.onBlockAdded(par1World, par2, par3, par4); 061 this.setDefaultDirection(par1World, par2, par3, par4); 062 } 063 064 /** 065 * set a blocks direction 066 */ 067 private void setDefaultDirection(World par1World, int par2, int par3, int par4) 068 { 069 if (!par1World.isRemote) 070 { 071 int l = par1World.getBlockId(par2, par3, par4 - 1); 072 int i1 = par1World.getBlockId(par2, par3, par4 + 1); 073 int j1 = par1World.getBlockId(par2 - 1, par3, par4); 074 int k1 = par1World.getBlockId(par2 + 1, par3, par4); 075 byte b0 = 3; 076 077 if (Block.opaqueCubeLookup[l] && !Block.opaqueCubeLookup[i1]) 078 { 079 b0 = 3; 080 } 081 082 if (Block.opaqueCubeLookup[i1] && !Block.opaqueCubeLookup[l]) 083 { 084 b0 = 2; 085 } 086 087 if (Block.opaqueCubeLookup[j1] && !Block.opaqueCubeLookup[k1]) 088 { 089 b0 = 5; 090 } 091 092 if (Block.opaqueCubeLookup[k1] && !Block.opaqueCubeLookup[j1]) 093 { 094 b0 = 4; 095 } 096 097 par1World.setBlockMetadataWithNotify(par2, par3, par4, b0, 2); 098 } 099 } 100 101 @SideOnly(Side.CLIENT) 102 103 /** 104 * From the specified side and block metadata retrieves the blocks texture. Args: side, metadata 105 */ 106 public Icon getBlockTextureFromSideAndMetadata(int par1, int par2) 107 { 108 return par1 == 1 ? this.field_94458_cO : (par1 == 0 ? this.field_94458_cO : (par1 != par2 ? this.blockIcon : this.field_94459_cP)); 109 } 110 111 @SideOnly(Side.CLIENT) 112 113 /** 114 * When this method is called, your block should register all the icons it needs with the given IconRegister. This 115 * is the only chance you get to register icons. 116 */ 117 public void registerIcons(IconRegister par1IconRegister) 118 { 119 this.blockIcon = par1IconRegister.registerIcon("furnace_side"); 120 this.field_94459_cP = par1IconRegister.registerIcon(this.isActive ? "furnace_front_lit" : "furnace_front"); 121 this.field_94458_cO = par1IconRegister.registerIcon("furnace_top"); 122 } 123 124 /** 125 * Called upon block activation (right click on the block.) 126 */ 127 public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9) 128 { 129 if (par1World.isRemote) 130 { 131 return true; 132 } 133 else 134 { 135 TileEntityFurnace tileentityfurnace = (TileEntityFurnace)par1World.getBlockTileEntity(par2, par3, par4); 136 137 if (tileentityfurnace != null) 138 { 139 par5EntityPlayer.displayGUIFurnace(tileentityfurnace); 140 } 141 142 return true; 143 } 144 } 145 146 /** 147 * Update which block ID the furnace is using depending on whether or not it is burning 148 */ 149 public static void updateFurnaceBlockState(boolean par0, World par1World, int par2, int par3, int par4) 150 { 151 int l = par1World.getBlockMetadata(par2, par3, par4); 152 TileEntity tileentity = par1World.getBlockTileEntity(par2, par3, par4); 153 keepFurnaceInventory = true; 154 155 if (par0) 156 { 157 par1World.setBlock(par2, par3, par4, Block.furnaceBurning.blockID); 158 } 159 else 160 { 161 par1World.setBlock(par2, par3, par4, Block.furnaceIdle.blockID); 162 } 163 164 keepFurnaceInventory = false; 165 par1World.setBlockMetadataWithNotify(par2, par3, par4, l, 2); 166 167 if (tileentity != null) 168 { 169 tileentity.validate(); 170 par1World.setBlockTileEntity(par2, par3, par4, tileentity); 171 } 172 } 173 174 @SideOnly(Side.CLIENT) 175 176 /** 177 * A randomly called display update to be able to add particles or other items for display 178 */ 179 public void randomDisplayTick(World par1World, int par2, int par3, int par4, Random par5Random) 180 { 181 if (this.isActive) 182 { 183 int l = par1World.getBlockMetadata(par2, par3, par4); 184 float f = (float)par2 + 0.5F; 185 float f1 = (float)par3 + 0.0F + par5Random.nextFloat() * 6.0F / 16.0F; 186 float f2 = (float)par4 + 0.5F; 187 float f3 = 0.52F; 188 float f4 = par5Random.nextFloat() * 0.6F - 0.3F; 189 190 if (l == 4) 191 { 192 par1World.spawnParticle("smoke", (double)(f - f3), (double)f1, (double)(f2 + f4), 0.0D, 0.0D, 0.0D); 193 par1World.spawnParticle("flame", (double)(f - f3), (double)f1, (double)(f2 + f4), 0.0D, 0.0D, 0.0D); 194 } 195 else if (l == 5) 196 { 197 par1World.spawnParticle("smoke", (double)(f + f3), (double)f1, (double)(f2 + f4), 0.0D, 0.0D, 0.0D); 198 par1World.spawnParticle("flame", (double)(f + f3), (double)f1, (double)(f2 + f4), 0.0D, 0.0D, 0.0D); 199 } 200 else if (l == 2) 201 { 202 par1World.spawnParticle("smoke", (double)(f + f4), (double)f1, (double)(f2 - f3), 0.0D, 0.0D, 0.0D); 203 par1World.spawnParticle("flame", (double)(f + f4), (double)f1, (double)(f2 - f3), 0.0D, 0.0D, 0.0D); 204 } 205 else if (l == 3) 206 { 207 par1World.spawnParticle("smoke", (double)(f + f4), (double)f1, (double)(f2 + f3), 0.0D, 0.0D, 0.0D); 208 par1World.spawnParticle("flame", (double)(f + f4), (double)f1, (double)(f2 + f3), 0.0D, 0.0D, 0.0D); 209 } 210 } 211 } 212 213 /** 214 * Returns a new instance of a block's tile entity class. Called on placing the block. 215 */ 216 public TileEntity createNewTileEntity(World par1World) 217 { 218 return new TileEntityFurnace(); 219 } 220 221 /** 222 * Called when the block is placed in the world. 223 */ 224 public void onBlockPlacedBy(World par1World, int par2, int par3, int par4, EntityLiving par5EntityLiving, ItemStack par6ItemStack) 225 { 226 int l = MathHelper.floor_double((double)(par5EntityLiving.rotationYaw * 4.0F / 360.0F) + 0.5D) & 3; 227 228 if (l == 0) 229 { 230 par1World.setBlockMetadataWithNotify(par2, par3, par4, 2, 2); 231 } 232 233 if (l == 1) 234 { 235 par1World.setBlockMetadataWithNotify(par2, par3, par4, 5, 2); 236 } 237 238 if (l == 2) 239 { 240 par1World.setBlockMetadataWithNotify(par2, par3, par4, 3, 2); 241 } 242 243 if (l == 3) 244 { 245 par1World.setBlockMetadataWithNotify(par2, par3, par4, 4, 2); 246 } 247 248 if (par6ItemStack.hasDisplayName()) 249 { 250 ((TileEntityFurnace)par1World.getBlockTileEntity(par2, par3, par4)).func_94129_a(par6ItemStack.getDisplayName()); 251 } 252 } 253 254 /** 255 * ejects contained items into the world, and notifies neighbours of an update, as appropriate 256 */ 257 public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6) 258 { 259 if (!keepFurnaceInventory) 260 { 261 TileEntityFurnace tileentityfurnace = (TileEntityFurnace)par1World.getBlockTileEntity(par2, par3, par4); 262 263 if (tileentityfurnace != null) 264 { 265 for (int j1 = 0; j1 < tileentityfurnace.getSizeInventory(); ++j1) 266 { 267 ItemStack itemstack = tileentityfurnace.getStackInSlot(j1); 268 269 if (itemstack != null) 270 { 271 float f = this.furnaceRand.nextFloat() * 0.8F + 0.1F; 272 float f1 = this.furnaceRand.nextFloat() * 0.8F + 0.1F; 273 float f2 = this.furnaceRand.nextFloat() * 0.8F + 0.1F; 274 275 while (itemstack.stackSize > 0) 276 { 277 int k1 = this.furnaceRand.nextInt(21) + 10; 278 279 if (k1 > itemstack.stackSize) 280 { 281 k1 = itemstack.stackSize; 282 } 283 284 itemstack.stackSize -= k1; 285 EntityItem entityitem = new EntityItem(par1World, (double)((float)par2 + f), (double)((float)par3 + f1), (double)((float)par4 + f2), new ItemStack(itemstack.itemID, k1, itemstack.getItemDamage())); 286 287 if (itemstack.hasTagCompound()) 288 { 289 entityitem.getEntityItem().setTagCompound((NBTTagCompound)itemstack.getTagCompound().copy()); 290 } 291 292 float f3 = 0.05F; 293 entityitem.motionX = (double)((float)this.furnaceRand.nextGaussian() * f3); 294 entityitem.motionY = (double)((float)this.furnaceRand.nextGaussian() * f3 + 0.2F); 295 entityitem.motionZ = (double)((float)this.furnaceRand.nextGaussian() * f3); 296 par1World.spawnEntityInWorld(entityitem); 297 } 298 } 299 } 300 301 par1World.func_96440_m(par2, par3, par4, par5); 302 } 303 } 304 305 super.breakBlock(par1World, par2, par3, par4, par5, par6); 306 } 307 308 /** 309 * If this returns true, then comparators facing away from this block will use the value from 310 * getComparatorInputOverride instead of the actual redstone signal strength. 311 */ 312 public boolean hasComparatorInputOverride() 313 { 314 return true; 315 } 316 317 /** 318 * If hasComparatorInputOverride returns true, the return value from this is used instead of the redstone signal 319 * strength when this block inputs to a comparator. 320 */ 321 public int getComparatorInputOverride(World par1World, int par2, int par3, int par4, int par5) 322 { 323 return Container.func_94526_b((IInventory)par1World.getBlockTileEntity(par2, par3, par4)); 324 } 325}