001 package net.minecraft.src; 002 003 import cpw.mods.fml.common.Side; 004 import cpw.mods.fml.common.asm.SideOnly; 005 import java.util.Random; 006 import net.minecraftforge.common.ForgeDirection; 007 import static net.minecraftforge.common.ForgeDirection.*; 008 009 public class BlockFire extends Block 010 { 011 /** The chance this block will encourage nearby blocks to catch on fire */ 012 private int[] chanceToEncourageFire = new int[256]; 013 014 /** 015 * This is an array indexed by block ID the larger the number in the array the more likely a block type will catch 016 * fires 017 */ 018 private int[] abilityToCatchFire = new int[256]; 019 020 protected BlockFire(int par1, int par2) 021 { 022 super(par1, par2, Material.fire); 023 this.setTickRandomly(true); 024 } 025 026 /** 027 * This method is called on a block after all other blocks gets already created. You can use it to reference and 028 * configure something on the block that needs the others ones. 029 */ 030 public void initializeBlock() 031 { 032 abilityToCatchFire = Block.blockFlammability; 033 chanceToEncourageFire = Block.blockFireSpreadSpeed; 034 this.setBurnRate(Block.planks.blockID, 5, 20); 035 this.setBurnRate(Block.woodDoubleSlab.blockID, 5, 20); 036 this.setBurnRate(Block.woodSingleSlab.blockID, 5, 20); 037 this.setBurnRate(Block.fence.blockID, 5, 20); 038 this.setBurnRate(Block.stairCompactPlanks.blockID, 5, 20); 039 this.setBurnRate(Block.stairsWoodBirch.blockID, 5, 20); 040 this.setBurnRate(Block.stairsWoodSpruce.blockID, 5, 20); 041 this.setBurnRate(Block.stairsWoodJungle.blockID, 5, 20); 042 this.setBurnRate(Block.wood.blockID, 5, 5); 043 this.setBurnRate(Block.leaves.blockID, 30, 60); 044 this.setBurnRate(Block.bookShelf.blockID, 30, 20); 045 this.setBurnRate(Block.tnt.blockID, 15, 100); 046 this.setBurnRate(Block.tallGrass.blockID, 60, 100); 047 this.setBurnRate(Block.cloth.blockID, 30, 60); 048 this.setBurnRate(Block.vine.blockID, 15, 100); 049 } 050 051 /** 052 * Sets the burn rate for a block. The larger abilityToCatchFire the more easily it will catch. The larger 053 * chanceToEncourageFire the faster it will burn and spread to other blocks. Args: blockID, chanceToEncourageFire, 054 * abilityToCatchFire 055 */ 056 private void setBurnRate(int par1, int par2, int par3) 057 { 058 Block.setBurnProperties(par1, par2, par3); 059 } 060 061 /** 062 * Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been 063 * cleared to be reused) 064 */ 065 public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4) 066 { 067 return null; 068 } 069 070 /** 071 * Is this block (a) opaque and (b) a full 1m cube? This determines whether or not to render the shared face of two 072 * adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block. 073 */ 074 public boolean isOpaqueCube() 075 { 076 return false; 077 } 078 079 /** 080 * If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc) 081 */ 082 public boolean renderAsNormalBlock() 083 { 084 return false; 085 } 086 087 /** 088 * The type of render function that is called for this block 089 */ 090 public int getRenderType() 091 { 092 return 3; 093 } 094 095 /** 096 * Returns the quantity of items to drop on block destruction. 097 */ 098 public int quantityDropped(Random par1Random) 099 { 100 return 0; 101 } 102 103 /** 104 * How many world ticks before ticking 105 */ 106 public int tickRate() 107 { 108 return 30; 109 } 110 111 /** 112 * Ticks the block if it's been scheduled 113 */ 114 public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random) 115 { 116 Block base = Block.blocksList[par1World.getBlockId(par2, par3 - 1, par4)]; 117 boolean var6 = (base != null && base.isFireSource(par1World, par2, par3 - 1, par4, par1World.getBlockMetadata(par2, par3 - 1, par4), UP)); 118 119 if (!this.canPlaceBlockAt(par1World, par2, par3, par4)) 120 { 121 par1World.setBlockWithNotify(par2, par3, par4, 0); 122 } 123 124 if (!var6 && par1World.isRaining() && (par1World.canLightningStrikeAt(par2, par3, par4) || par1World.canLightningStrikeAt(par2 - 1, par3, par4) || par1World.canLightningStrikeAt(par2 + 1, par3, par4) || par1World.canLightningStrikeAt(par2, par3, par4 - 1) || par1World.canLightningStrikeAt(par2, par3, par4 + 1))) 125 { 126 par1World.setBlockWithNotify(par2, par3, par4, 0); 127 } 128 else 129 { 130 int var7 = par1World.getBlockMetadata(par2, par3, par4); 131 132 if (var7 < 15) 133 { 134 par1World.setBlockMetadata(par2, par3, par4, var7 + par5Random.nextInt(3) / 2); 135 } 136 137 par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate() + par5Random.nextInt(10)); 138 139 if (!var6 && !this.canNeighborBurn(par1World, par2, par3, par4)) 140 { 141 if (!par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) || var7 > 3) 142 { 143 par1World.setBlockWithNotify(par2, par3, par4, 0); 144 } 145 } 146 else if (!var6 && !this.canBlockCatchFire(par1World, par2, par3 - 1, par4, UP) && var7 == 15 && par5Random.nextInt(4) == 0) 147 { 148 par1World.setBlockWithNotify(par2, par3, par4, 0); 149 } 150 else 151 { 152 boolean var8 = par1World.isBlockHighHumidity(par2, par3, par4); 153 byte var9 = 0; 154 155 if (var8) 156 { 157 var9 = -50; 158 } 159 160 this.tryToCatchBlockOnFire(par1World, par2 + 1, par3, par4, 300 + var9, par5Random, var7, WEST ); 161 this.tryToCatchBlockOnFire(par1World, par2 - 1, par3, par4, 300 + var9, par5Random, var7, EAST ); 162 this.tryToCatchBlockOnFire(par1World, par2, par3 - 1, par4, 250 + var9, par5Random, var7, UP ); 163 this.tryToCatchBlockOnFire(par1World, par2, par3 + 1, par4, 250 + var9, par5Random, var7, DOWN ); 164 this.tryToCatchBlockOnFire(par1World, par2, par3, par4 - 1, 300 + var9, par5Random, var7, SOUTH); 165 this.tryToCatchBlockOnFire(par1World, par2, par3, par4 + 1, 300 + var9, par5Random, var7, NORTH); 166 167 for (int var10 = par2 - 1; var10 <= par2 + 1; ++var10) 168 { 169 for (int var11 = par4 - 1; var11 <= par4 + 1; ++var11) 170 { 171 for (int var12 = par3 - 1; var12 <= par3 + 4; ++var12) 172 { 173 if (var10 != par2 || var12 != par3 || var11 != par4) 174 { 175 int var13 = 100; 176 177 if (var12 > par3 + 1) 178 { 179 var13 += (var12 - (par3 + 1)) * 100; 180 } 181 182 int var14 = this.getChanceOfNeighborsEncouragingFire(par1World, var10, var12, var11); 183 184 if (var14 > 0) 185 { 186 int var15 = (var14 + 40) / (var7 + 30); 187 188 if (var8) 189 { 190 var15 /= 2; 191 } 192 193 if (var15 > 0 && par5Random.nextInt(var13) <= var15 && (!par1World.isRaining() || !par1World.canLightningStrikeAt(var10, var12, var11)) && !par1World.canLightningStrikeAt(var10 - 1, var12, par4) && !par1World.canLightningStrikeAt(var10 + 1, var12, var11) && !par1World.canLightningStrikeAt(var10, var12, var11 - 1) && !par1World.canLightningStrikeAt(var10, var12, var11 + 1)) 194 { 195 int var16 = var7 + par5Random.nextInt(5) / 4; 196 197 if (var16 > 15) 198 { 199 var16 = 15; 200 } 201 202 par1World.setBlockAndMetadataWithNotify(var10, var12, var11, this.blockID, var16); 203 } 204 } 205 } 206 } 207 } 208 } 209 } 210 } 211 } 212 213 private void tryToCatchBlockOnFire(World par1World, int par2, int par3, int par4, int par5, Random par6Random, int par7) 214 { 215 tryToCatchBlockOnFire(par1World, par2, par3, par4, par5, par6Random, par7, UP); 216 } 217 private void tryToCatchBlockOnFire(World par1World, int par2, int par3, int par4, int par5, Random par6Random, int par7, ForgeDirection face) 218 { 219 int var8 = 0; 220 Block block = Block.blocksList[par1World.getBlockId(par2, par3, par4)]; 221 if (block != null) 222 { 223 var8 = block.getFlammability(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), face); 224 } 225 226 if (par6Random.nextInt(par5) < var8) 227 { 228 boolean var9 = par1World.getBlockId(par2, par3, par4) == Block.tnt.blockID; 229 230 if (par6Random.nextInt(par7 + 10) < 5 && !par1World.canLightningStrikeAt(par2, par3, par4)) 231 { 232 int var10 = par7 + par6Random.nextInt(5) / 4; 233 234 if (var10 > 15) 235 { 236 var10 = 15; 237 } 238 239 par1World.setBlockAndMetadataWithNotify(par2, par3, par4, this.blockID, var10); 240 } 241 else 242 { 243 par1World.setBlockWithNotify(par2, par3, par4, 0); 244 } 245 246 if (var9) 247 { 248 Block.tnt.onBlockDestroyedByPlayer(par1World, par2, par3, par4, 1); 249 } 250 } 251 } 252 253 /** 254 * Returns true if at least one block next to this one can burn. 255 */ 256 private boolean canNeighborBurn(World par1World, int par2, int par3, int par4) 257 { 258 return canBlockCatchFire(par1World, par2 + 1, par3, par4, WEST ) || 259 canBlockCatchFire(par1World, par2 - 1, par3, par4, EAST ) || 260 canBlockCatchFire(par1World, par2, par3 - 1, par4, UP ) || 261 canBlockCatchFire(par1World, par2, par3 + 1, par4, DOWN ) || 262 canBlockCatchFire(par1World, par2, par3, par4 - 1, SOUTH) || 263 canBlockCatchFire(par1World, par2, par3, par4 + 1, NORTH); 264 } 265 266 /** 267 * Gets the highest chance of a neighbor block encouraging this block to catch fire 268 */ 269 private int getChanceOfNeighborsEncouragingFire(World par1World, int par2, int par3, int par4) 270 { 271 byte var5 = 0; 272 273 if (!par1World.isAirBlock(par2, par3, par4)) 274 { 275 return 0; 276 } 277 else 278 { 279 int var6 = this.getChanceToEncourageFire(par1World, par2 + 1, par3, par4, var5, WEST); 280 var6 = this.getChanceToEncourageFire(par1World, par2 - 1, par3, par4, var6, EAST); 281 var6 = this.getChanceToEncourageFire(par1World, par2, par3 - 1, par4, var6, UP); 282 var6 = this.getChanceToEncourageFire(par1World, par2, par3 + 1, par4, var6, DOWN); 283 var6 = this.getChanceToEncourageFire(par1World, par2, par3, par4 - 1, var6, SOUTH); 284 var6 = this.getChanceToEncourageFire(par1World, par2, par3, par4 + 1, var6, NORTH); 285 return var6; 286 } 287 } 288 289 /** 290 * Returns if this block is collidable (only used by Fire). Args: x, y, z 291 */ 292 public boolean isCollidable() 293 { 294 return false; 295 } 296 297 /** 298 * Checks the specified block coordinate to see if it can catch fire. Args: blockAccess, x, y, z 299 * Deprecated for a side-sensitive version 300 */ 301 @Deprecated 302 public boolean canBlockCatchFire(IBlockAccess par1IBlockAccess, int par2, int par3, int par4) 303 { 304 return canBlockCatchFire(par1IBlockAccess, par2, par3, par4, UP); 305 } 306 307 /** 308 * Retrieves a specified block's chance to encourage their neighbors to burn and if the number is greater than the 309 * current number passed in it will return its number instead of the passed in one. Args: world, x, y, z, 310 * curChanceToEncourageFire 311 * Deprecated for a side-sensitive version 312 */ 313 @Deprecated 314 public int getChanceToEncourageFire(World par1World, int par2, int par3, int par4, int par5) 315 { 316 return getChanceToEncourageFire(par1World, par2, par3, par4, par5, UP); 317 } 318 319 /** 320 * Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z 321 */ 322 public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4) 323 { 324 return par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) || this.canNeighborBurn(par1World, par2, par3, par4); 325 } 326 327 /** 328 * Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are 329 * their own) Args: x, y, z, neighbor blockID 330 */ 331 public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5) 332 { 333 if (!par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) && !this.canNeighborBurn(par1World, par2, par3, par4)) 334 { 335 par1World.setBlockWithNotify(par2, par3, par4, 0); 336 } 337 } 338 339 /** 340 * Called whenever the block is added into the world. Args: world, x, y, z 341 */ 342 public void onBlockAdded(World par1World, int par2, int par3, int par4) 343 { 344 if (par1World.provider.worldType > 0 || par1World.getBlockId(par2, par3 - 1, par4) != Block.obsidian.blockID || !Block.portal.tryToCreatePortal(par1World, par2, par3, par4)) 345 { 346 if (!par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) && !this.canNeighborBurn(par1World, par2, par3, par4)) 347 { 348 par1World.setBlockWithNotify(par2, par3, par4, 0); 349 } 350 else 351 { 352 par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, this.tickRate() + par1World.rand.nextInt(10)); 353 } 354 } 355 } 356 357 @SideOnly(Side.CLIENT) 358 359 /** 360 * A randomly called display update to be able to add particles or other items for display 361 */ 362 public void randomDisplayTick(World par1World, int par2, int par3, int par4, Random par5Random) 363 { 364 if (par5Random.nextInt(24) == 0) 365 { 366 par1World.playSound((double)((float)par2 + 0.5F), (double)((float)par3 + 0.5F), (double)((float)par4 + 0.5F), "fire.fire", 1.0F + par5Random.nextFloat(), par5Random.nextFloat() * 0.7F + 0.3F); 367 } 368 369 int var6; 370 float var7; 371 float var8; 372 float var9; 373 374 if (!par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) && !Block.fire.canBlockCatchFire(par1World, par2, par3 - 1, par4, UP)) 375 { 376 if (Block.fire.canBlockCatchFire(par1World, par2 - 1, par3, par4, EAST)) 377 { 378 for (var6 = 0; var6 < 2; ++var6) 379 { 380 var7 = (float)par2 + par5Random.nextFloat() * 0.1F; 381 var8 = (float)par3 + par5Random.nextFloat(); 382 var9 = (float)par4 + par5Random.nextFloat(); 383 par1World.spawnParticle("largesmoke", (double)var7, (double)var8, (double)var9, 0.0D, 0.0D, 0.0D); 384 } 385 } 386 387 if (Block.fire.canBlockCatchFire(par1World, par2 + 1, par3, par4, WEST)) 388 { 389 for (var6 = 0; var6 < 2; ++var6) 390 { 391 var7 = (float)(par2 + 1) - par5Random.nextFloat() * 0.1F; 392 var8 = (float)par3 + par5Random.nextFloat(); 393 var9 = (float)par4 + par5Random.nextFloat(); 394 par1World.spawnParticle("largesmoke", (double)var7, (double)var8, (double)var9, 0.0D, 0.0D, 0.0D); 395 } 396 } 397 398 if (Block.fire.canBlockCatchFire(par1World, par2, par3, par4 - 1, SOUTH)) 399 { 400 for (var6 = 0; var6 < 2; ++var6) 401 { 402 var7 = (float)par2 + par5Random.nextFloat(); 403 var8 = (float)par3 + par5Random.nextFloat(); 404 var9 = (float)par4 + par5Random.nextFloat() * 0.1F; 405 par1World.spawnParticle("largesmoke", (double)var7, (double)var8, (double)var9, 0.0D, 0.0D, 0.0D); 406 } 407 } 408 409 if (Block.fire.canBlockCatchFire(par1World, par2, par3, par4 + 1, NORTH)) 410 { 411 for (var6 = 0; var6 < 2; ++var6) 412 { 413 var7 = (float)par2 + par5Random.nextFloat(); 414 var8 = (float)par3 + par5Random.nextFloat(); 415 var9 = (float)(par4 + 1) - par5Random.nextFloat() * 0.1F; 416 par1World.spawnParticle("largesmoke", (double)var7, (double)var8, (double)var9, 0.0D, 0.0D, 0.0D); 417 } 418 } 419 420 if (Block.fire.canBlockCatchFire(par1World, par2, par3 + 1, par4, DOWN)) 421 { 422 for (var6 = 0; var6 < 2; ++var6) 423 { 424 var7 = (float)par2 + par5Random.nextFloat(); 425 var8 = (float)(par3 + 1) - par5Random.nextFloat() * 0.1F; 426 var9 = (float)par4 + par5Random.nextFloat(); 427 par1World.spawnParticle("largesmoke", (double)var7, (double)var8, (double)var9, 0.0D, 0.0D, 0.0D); 428 } 429 } 430 } 431 else 432 { 433 for (var6 = 0; var6 < 3; ++var6) 434 { 435 var7 = (float)par2 + par5Random.nextFloat(); 436 var8 = (float)par3 + par5Random.nextFloat() * 0.5F + 0.5F; 437 var9 = (float)par4 + par5Random.nextFloat(); 438 par1World.spawnParticle("largesmoke", (double)var7, (double)var8, (double)var9, 0.0D, 0.0D, 0.0D); 439 } 440 } 441 } 442 443 /** 444 * Side sensitive version that calls the block function. 445 * 446 * @param world The current world 447 * @param x X Position 448 * @param y Y Position 449 * @param z Z Position 450 * @param face The side the fire is coming from 451 * @return True if the face can catch fire. 452 */ 453 public boolean canBlockCatchFire(IBlockAccess world, int x, int y, int z, ForgeDirection face) 454 { 455 Block block = Block.blocksList[world.getBlockId(x, y, z)]; 456 if (block != null) 457 { 458 return block.isFlammable(world, x, y, z, world.getBlockMetadata(x, y, z), face); 459 } 460 return false; 461 } 462 463 /** 464 * Side sensitive version that calls the block function. 465 * 466 * @param world The current world 467 * @param x X Position 468 * @param y Y Position 469 * @param z Z Position 470 * @param oldChance The previous maximum chance. 471 * @param face The side the fire is coming from 472 * @return The chance of the block catching fire, or oldChance if it is higher 473 */ 474 public int getChanceToEncourageFire(World world, int x, int y, int z, int oldChance, ForgeDirection face) 475 { 476 int newChance = 0; 477 Block block = Block.blocksList[world.getBlockId(x, y, z)]; 478 if (block != null) 479 { 480 newChance = block.getFireSpreadSpeed(world, x, y, z, world.getBlockMetadata(x, y, z), face); 481 } 482 return (newChance > oldChance ? newChance : oldChance); 483 } 484 }