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

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