core/src/ru/deadsoftware/cavecraft/game/WorldGen.java

   1 package ru.deadsoftware.cavecraft.game;
   2
   3 import com.badlogic.gdx.Gdx;
   4 import com.badlogic.gdx.math.RandomXS128;
   5 import com.badlogic.gdx.utils.TimeUtils;
   6
   7 public class WorldGen {
   8
   9     private static RandomXS128 rand;
  10     private static long seed;
  11
  12     private static int[][] foreMap, backMap;
  13     private static int[] hMap;
  14
  15     public static long getSeed() {
  16         return seed;
  17     }
  18
  19     static int[] genLandscape(int width, int mid, int min, int max) {
  20         int[] res = new int[width];
  21         int t;
  22         res[0] = mid;
  23         for (int i=1; i<width; i++) {
  24             t = rand.nextInt(3)-1;
  25             res[i] = res[i-1] + t;
  26             if (res[i]<min) res[i] = min;
  27             if (res[i]>max) res[i] = max;
  28         }
  29         return res;
  30     }
  31
  32     static void genWorld(int width, int height) {
  33         genWorld(width, height, TimeUtils.millis());
  34     }
  35
  36     static void genWorld(int width, int height, long s) {
  37         int dirtH;
  38         seed = s;
  39         rand = new RandomXS128(seed);
  40         foreMap = new int[width][height];
  41         backMap = new int[width][height];
  42         hMap = genLandscape(width, height/2, height/4, height/4*3);
  43         for (int x=0; x<width; x++) {
  44             dirtH = 4+rand.nextInt(2);
  45             for (int y = height- hMap[x]; y<height; y++) {
  46                 if (y==height- hMap[x]) {
  47                     foreMap[x][y] = 2;
  48                     backMap[x][y] = 2;
  49                 } else if (y<height-hMap[x]+dirtH) {
  50                     foreMap[x][y] = 3;
  51                     backMap[x][y] = 3;
  52                 } else if (y<height-1){
  53                     foreMap[x][y] = 1;
  54                     backMap[x][y] = 1;
  55                 } else {
  56                     foreMap[x][y] = 7;
  57                     backMap[x][y] = 7;
  58                 }
  59             }
  60             for (int y = height/2; y<height- hMap[x]; y++) {
  61                 if (foreMap[x][y]==0){
  62                     foreMap[x][y] = 8;
  63                     backMap[x][y] = 8;
  64                 }
  65             }
  66         }
  67     }
  68
  69     static int[][] getForeMap() {
  70         return foreMap;
  71     }
  72
  73     static int[][] getBackMap() {
  74         return backMap;
  75     }
  76
  77     static void clear() {
  78         foreMap = null;
  79         backMap = null;
  80     }
  81 }