001package net.minecraft.world.gen.layer; 002 003import net.minecraft.world.biome.BiomeGenBase; 004 005public class GenLayerHills extends GenLayer 006{ 007 public GenLayerHills(long par1, GenLayer par3GenLayer) 008 { 009 super(par1); 010 this.parent = par3GenLayer; 011 } 012 013 /** 014 * Returns a list of integer values generated by this layer. These may be interpreted as temperatures, rainfall 015 * amounts, or biomeList[] indices based on the particular GenLayer subclass. 016 */ 017 public int[] getInts(int par1, int par2, int par3, int par4) 018 { 019 int[] aint = this.parent.getInts(par1 - 1, par2 - 1, par3 + 2, par4 + 2); 020 int[] aint1 = IntCache.getIntCache(par3 * par4); 021 022 for (int i1 = 0; i1 < par4; ++i1) 023 { 024 for (int j1 = 0; j1 < par3; ++j1) 025 { 026 this.initChunkSeed((long)(j1 + par1), (long)(i1 + par2)); 027 int k1 = aint[j1 + 1 + (i1 + 1) * (par3 + 2)]; 028 029 if (this.nextInt(3) == 0) 030 { 031 int l1 = k1; 032 033 if (k1 == BiomeGenBase.desert.biomeID) 034 { 035 l1 = BiomeGenBase.desertHills.biomeID; 036 } 037 else if (k1 == BiomeGenBase.forest.biomeID) 038 { 039 l1 = BiomeGenBase.forestHills.biomeID; 040 } 041 else if (k1 == BiomeGenBase.taiga.biomeID) 042 { 043 l1 = BiomeGenBase.taigaHills.biomeID; 044 } 045 else if (k1 == BiomeGenBase.plains.biomeID) 046 { 047 l1 = BiomeGenBase.forest.biomeID; 048 } 049 else if (k1 == BiomeGenBase.icePlains.biomeID) 050 { 051 l1 = BiomeGenBase.iceMountains.biomeID; 052 } 053 else if (k1 == BiomeGenBase.jungle.biomeID) 054 { 055 l1 = BiomeGenBase.jungleHills.biomeID; 056 } 057 058 if (l1 == k1) 059 { 060 aint1[j1 + i1 * par3] = k1; 061 } 062 else 063 { 064 int i2 = aint[j1 + 1 + (i1 + 1 - 1) * (par3 + 2)]; 065 int j2 = aint[j1 + 1 + 1 + (i1 + 1) * (par3 + 2)]; 066 int k2 = aint[j1 + 1 - 1 + (i1 + 1) * (par3 + 2)]; 067 int l2 = aint[j1 + 1 + (i1 + 1 + 1) * (par3 + 2)]; 068 069 if (i2 == k1 && j2 == k1 && k2 == k1 && l2 == k1) 070 { 071 aint1[j1 + i1 * par3] = l1; 072 } 073 else 074 { 075 aint1[j1 + i1 * par3] = k1; 076 } 077 } 078 } 079 else 080 { 081 aint1[j1 + i1 * par3] = k1; 082 } 083 } 084 } 085 086 return aint1; 087 } 088}