001 package net.minecraft.src; 002 003 import java.util.List; 004 import java.util.Random; 005 006 import net.minecraftforge.common.*; 007 import net.minecraftforge.event.Event.*; 008 import net.minecraftforge.event.terraingen.*; 009 010 public class ChunkProviderEnd implements IChunkProvider 011 { 012 private Random endRNG; 013 private NoiseGeneratorOctaves noiseGen1; 014 private NoiseGeneratorOctaves noiseGen2; 015 private NoiseGeneratorOctaves noiseGen3; 016 public NoiseGeneratorOctaves noiseGen4; 017 public NoiseGeneratorOctaves noiseGen5; 018 private World endWorld; 019 private double[] densities; 020 021 /** The biomes that are used to generate the chunk */ 022 private BiomeGenBase[] biomesForGeneration; 023 double[] noiseData1; 024 double[] noiseData2; 025 double[] noiseData3; 026 double[] noiseData4; 027 double[] noiseData5; 028 int[][] field_73203_h = new int[32][32]; 029 030 public ChunkProviderEnd(World par1World, long par2) 031 { 032 this.endWorld = par1World; 033 this.endRNG = new Random(par2); 034 this.noiseGen1 = new NoiseGeneratorOctaves(this.endRNG, 16); 035 this.noiseGen2 = new NoiseGeneratorOctaves(this.endRNG, 16); 036 this.noiseGen3 = new NoiseGeneratorOctaves(this.endRNG, 8); 037 this.noiseGen4 = new NoiseGeneratorOctaves(this.endRNG, 10); 038 this.noiseGen5 = new NoiseGeneratorOctaves(this.endRNG, 16); 039 040 NoiseGeneratorOctaves[] noiseGens = {noiseGen1, noiseGen2, noiseGen3, noiseGen4, noiseGen5}; 041 noiseGens = TerrainGen.getModdedNoiseGenerators(par1World, this.endRNG, noiseGens); 042 this.noiseGen1 = noiseGens[0]; 043 this.noiseGen2 = noiseGens[1]; 044 this.noiseGen3 = noiseGens[2]; 045 this.noiseGen4 = noiseGens[3]; 046 this.noiseGen5 = noiseGens[4]; 047 } 048 049 public void generateTerrain(int par1, int par2, byte[] par3ArrayOfByte, BiomeGenBase[] par4ArrayOfBiomeGenBase) 050 { 051 byte var5 = 2; 052 int var6 = var5 + 1; 053 byte var7 = 33; 054 int var8 = var5 + 1; 055 this.densities = this.initializeNoiseField(this.densities, par1 * var5, 0, par2 * var5, var6, var7, var8); 056 057 for (int var9 = 0; var9 < var5; ++var9) 058 { 059 for (int var10 = 0; var10 < var5; ++var10) 060 { 061 for (int var11 = 0; var11 < 32; ++var11) 062 { 063 double var12 = 0.25D; 064 double var14 = this.densities[((var9 + 0) * var8 + var10 + 0) * var7 + var11 + 0]; 065 double var16 = this.densities[((var9 + 0) * var8 + var10 + 1) * var7 + var11 + 0]; 066 double var18 = this.densities[((var9 + 1) * var8 + var10 + 0) * var7 + var11 + 0]; 067 double var20 = this.densities[((var9 + 1) * var8 + var10 + 1) * var7 + var11 + 0]; 068 double var22 = (this.densities[((var9 + 0) * var8 + var10 + 0) * var7 + var11 + 1] - var14) * var12; 069 double var24 = (this.densities[((var9 + 0) * var8 + var10 + 1) * var7 + var11 + 1] - var16) * var12; 070 double var26 = (this.densities[((var9 + 1) * var8 + var10 + 0) * var7 + var11 + 1] - var18) * var12; 071 double var28 = (this.densities[((var9 + 1) * var8 + var10 + 1) * var7 + var11 + 1] - var20) * var12; 072 073 for (int var30 = 0; var30 < 4; ++var30) 074 { 075 double var31 = 0.125D; 076 double var33 = var14; 077 double var35 = var16; 078 double var37 = (var18 - var14) * var31; 079 double var39 = (var20 - var16) * var31; 080 081 for (int var41 = 0; var41 < 8; ++var41) 082 { 083 int var42 = var41 + var9 * 8 << 11 | 0 + var10 * 8 << 7 | var11 * 4 + var30; 084 short var43 = 128; 085 double var44 = 0.125D; 086 double var46 = var33; 087 double var48 = (var35 - var33) * var44; 088 089 for (int var50 = 0; var50 < 8; ++var50) 090 { 091 int var51 = 0; 092 093 if (var46 > 0.0D) 094 { 095 var51 = Block.whiteStone.blockID; 096 } 097 098 par3ArrayOfByte[var42] = (byte)var51; 099 var42 += var43; 100 var46 += var48; 101 } 102 103 var33 += var37; 104 var35 += var39; 105 } 106 107 var14 += var22; 108 var16 += var24; 109 var18 += var26; 110 var20 += var28; 111 } 112 } 113 } 114 } 115 } 116 117 public void replaceBlocksForBiome(int par1, int par2, byte[] par3ArrayOfByte, BiomeGenBase[] par4ArrayOfBiomeGenBase) 118 { 119 ChunkProviderEvent.ReplaceBiomeBlocks event = new ChunkProviderEvent.ReplaceBiomeBlocks(this, par1, par2, par3ArrayOfByte, par4ArrayOfBiomeGenBase); 120 MinecraftForge.EVENT_BUS.post(event); 121 if (event.getResult() == Result.DENY) return; 122 123 for (int var5 = 0; var5 < 16; ++var5) 124 { 125 for (int var6 = 0; var6 < 16; ++var6) 126 { 127 byte var7 = 1; 128 int var8 = -1; 129 byte var9 = (byte)Block.whiteStone.blockID; 130 byte var10 = (byte)Block.whiteStone.blockID; 131 132 for (int var11 = 127; var11 >= 0; --var11) 133 { 134 int var12 = (var6 * 16 + var5) * 128 + var11; 135 byte var13 = par3ArrayOfByte[var12]; 136 137 if (var13 == 0) 138 { 139 var8 = -1; 140 } 141 else if (var13 == Block.stone.blockID) 142 { 143 if (var8 == -1) 144 { 145 if (var7 <= 0) 146 { 147 var9 = 0; 148 var10 = (byte)Block.whiteStone.blockID; 149 } 150 151 var8 = var7; 152 153 if (var11 >= 0) 154 { 155 par3ArrayOfByte[var12] = var9; 156 } 157 else 158 { 159 par3ArrayOfByte[var12] = var10; 160 } 161 } 162 else if (var8 > 0) 163 { 164 --var8; 165 par3ArrayOfByte[var12] = var10; 166 } 167 } 168 } 169 } 170 } 171 } 172 173 /** 174 * loads or generates the chunk at the chunk location specified 175 */ 176 public Chunk loadChunk(int par1, int par2) 177 { 178 return this.provideChunk(par1, par2); 179 } 180 181 /** 182 * Will return back a chunk, if it doesn't exist and its not a MP client it will generates all the blocks for the 183 * specified chunk from the map seed and chunk seed 184 */ 185 public Chunk provideChunk(int par1, int par2) 186 { 187 this.endRNG.setSeed((long)par1 * 341873128712L + (long)par2 * 132897987541L); 188 byte[] var3 = new byte[32768]; 189 this.biomesForGeneration = this.endWorld.getWorldChunkManager().loadBlockGeneratorData(this.biomesForGeneration, par1 * 16, par2 * 16, 16, 16); 190 this.generateTerrain(par1, par2, var3, this.biomesForGeneration); 191 this.replaceBlocksForBiome(par1, par2, var3, this.biomesForGeneration); 192 Chunk var4 = new Chunk(this.endWorld, var3, par1, par2); 193 byte[] var5 = var4.getBiomeArray(); 194 195 for (int var6 = 0; var6 < var5.length; ++var6) 196 { 197 var5[var6] = (byte)this.biomesForGeneration[var6].biomeID; 198 } 199 200 var4.generateSkylightMap(); 201 return var4; 202 } 203 204 /** 205 * generates a subset of the level's terrain data. Takes 7 arguments: the [empty] noise array, the position, and the 206 * size. 207 */ 208 private double[] initializeNoiseField(double[] par1ArrayOfDouble, int par2, int par3, int par4, int par5, int par6, int par7) 209 { 210 ChunkProviderEvent.InitNoiseField event = new ChunkProviderEvent.InitNoiseField(this, par1ArrayOfDouble, par2, par3, par4, par5, par6, par7); 211 MinecraftForge.EVENT_BUS.post(event); 212 if (event.getResult() == Result.DENY) return event.noisefield; 213 214 if (par1ArrayOfDouble == null) 215 { 216 par1ArrayOfDouble = new double[par5 * par6 * par7]; 217 } 218 219 double var8 = 684.412D; 220 double var10 = 684.412D; 221 this.noiseData4 = this.noiseGen4.generateNoiseOctaves(this.noiseData4, par2, par4, par5, par7, 1.121D, 1.121D, 0.5D); 222 this.noiseData5 = this.noiseGen5.generateNoiseOctaves(this.noiseData5, par2, par4, par5, par7, 200.0D, 200.0D, 0.5D); 223 var8 *= 2.0D; 224 this.noiseData1 = this.noiseGen3.generateNoiseOctaves(this.noiseData1, par2, par3, par4, par5, par6, par7, var8 / 80.0D, var10 / 160.0D, var8 / 80.0D); 225 this.noiseData2 = this.noiseGen1.generateNoiseOctaves(this.noiseData2, par2, par3, par4, par5, par6, par7, var8, var10, var8); 226 this.noiseData3 = this.noiseGen2.generateNoiseOctaves(this.noiseData3, par2, par3, par4, par5, par6, par7, var8, var10, var8); 227 int var12 = 0; 228 int var13 = 0; 229 230 for (int var14 = 0; var14 < par5; ++var14) 231 { 232 for (int var15 = 0; var15 < par7; ++var15) 233 { 234 double var16 = (this.noiseData4[var13] + 256.0D) / 512.0D; 235 236 if (var16 > 1.0D) 237 { 238 var16 = 1.0D; 239 } 240 241 double var18 = this.noiseData5[var13] / 8000.0D; 242 243 if (var18 < 0.0D) 244 { 245 var18 = -var18 * 0.3D; 246 } 247 248 var18 = var18 * 3.0D - 2.0D; 249 float var20 = (float)(var14 + par2 - 0) / 1.0F; 250 float var21 = (float)(var15 + par4 - 0) / 1.0F; 251 float var22 = 100.0F - MathHelper.sqrt_float(var20 * var20 + var21 * var21) * 8.0F; 252 253 if (var22 > 80.0F) 254 { 255 var22 = 80.0F; 256 } 257 258 if (var22 < -100.0F) 259 { 260 var22 = -100.0F; 261 } 262 263 if (var18 > 1.0D) 264 { 265 var18 = 1.0D; 266 } 267 268 var18 /= 8.0D; 269 var18 = 0.0D; 270 271 if (var16 < 0.0D) 272 { 273 var16 = 0.0D; 274 } 275 276 var16 += 0.5D; 277 var18 = var18 * (double)par6 / 16.0D; 278 ++var13; 279 double var23 = (double)par6 / 2.0D; 280 281 for (int var25 = 0; var25 < par6; ++var25) 282 { 283 double var26 = 0.0D; 284 double var28 = ((double)var25 - var23) * 8.0D / var16; 285 286 if (var28 < 0.0D) 287 { 288 var28 *= -1.0D; 289 } 290 291 double var30 = this.noiseData2[var12] / 512.0D; 292 double var32 = this.noiseData3[var12] / 512.0D; 293 double var34 = (this.noiseData1[var12] / 10.0D + 1.0D) / 2.0D; 294 295 if (var34 < 0.0D) 296 { 297 var26 = var30; 298 } 299 else if (var34 > 1.0D) 300 { 301 var26 = var32; 302 } 303 else 304 { 305 var26 = var30 + (var32 - var30) * var34; 306 } 307 308 var26 -= 8.0D; 309 var26 += (double)var22; 310 byte var36 = 2; 311 double var37; 312 313 if (var25 > par6 / 2 - var36) 314 { 315 var37 = (double)((float)(var25 - (par6 / 2 - var36)) / 64.0F); 316 317 if (var37 < 0.0D) 318 { 319 var37 = 0.0D; 320 } 321 322 if (var37 > 1.0D) 323 { 324 var37 = 1.0D; 325 } 326 327 var26 = var26 * (1.0D - var37) + -3000.0D * var37; 328 } 329 330 var36 = 8; 331 332 if (var25 < var36) 333 { 334 var37 = (double)((float)(var36 - var25) / ((float)var36 - 1.0F)); 335 var26 = var26 * (1.0D - var37) + -30.0D * var37; 336 } 337 338 par1ArrayOfDouble[var12] = var26; 339 ++var12; 340 } 341 } 342 } 343 344 return par1ArrayOfDouble; 345 } 346 347 /** 348 * Checks to see if a chunk exists at x, y 349 */ 350 public boolean chunkExists(int par1, int par2) 351 { 352 return true; 353 } 354 355 /** 356 * Populates chunk with ores etc etc 357 */ 358 public void populate(IChunkProvider par1IChunkProvider, int par2, int par3) 359 { 360 BlockSand.fallInstantly = true; 361 362 MinecraftForge.EVENT_BUS.post(new PopulateChunkEvent.Pre(par1IChunkProvider, endWorld, endWorld.rand, par2, par3, false)); 363 364 int var4 = par2 * 16; 365 int var5 = par3 * 16; 366 BiomeGenBase var6 = this.endWorld.getBiomeGenForCoords(var4 + 16, var5 + 16); 367 var6.decorate(this.endWorld, this.endWorld.rand, var4, var5); 368 369 MinecraftForge.EVENT_BUS.post(new PopulateChunkEvent.Post(par1IChunkProvider, endWorld, endWorld.rand, par2, par3, false)); 370 371 BlockSand.fallInstantly = false; 372 } 373 374 /** 375 * Two modes of operation: if passed true, save all Chunks in one go. If passed false, save up to two chunks. 376 * Return true if all chunks have been saved. 377 */ 378 public boolean saveChunks(boolean par1, IProgressUpdate par2IProgressUpdate) 379 { 380 return true; 381 } 382 383 /** 384 * Unloads the 100 oldest chunks from memory, due to a bug with chunkSet.add() never being called it thinks the list 385 * is always empty and will not remove any chunks. 386 */ 387 public boolean unload100OldestChunks() 388 { 389 return false; 390 } 391 392 /** 393 * Returns if the IChunkProvider supports saving. 394 */ 395 public boolean canSave() 396 { 397 return true; 398 } 399 400 /** 401 * Converts the instance data to a readable string. 402 */ 403 public String makeString() 404 { 405 return "RandomLevelSource"; 406 } 407 408 /** 409 * Returns a list of creatures of the specified type that can spawn at the given location. 410 */ 411 public List getPossibleCreatures(EnumCreatureType par1EnumCreatureType, int par2, int par3, int par4) 412 { 413 BiomeGenBase var5 = this.endWorld.getBiomeGenForCoords(par2, par4); 414 return var5 == null ? null : var5.getSpawnableList(par1EnumCreatureType); 415 } 416 417 /** 418 * Returns the location of the closest structure of the specified type. If not found returns null. 419 */ 420 public ChunkPosition findClosestStructure(World par1World, String par2Str, int par3, int par4, int par5) 421 { 422 return null; 423 } 424 425 public int getLoadedChunkCount() 426 { 427 return 0; 428 } 429 430 public void recreateStructures(int par1, int par2) {} 431 }