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 int[][] foreMap, backMap;
   9     private static int[] hMap;
  10
  11     static int[] genLandscape(int width, int mid, int min, int max) {
  12         RandomXS128 rand = new RandomXS128(TimeUtils.millis());
  13         int[] res = new int[width];
  14         int t;
  15         res[0] = mid;
  16         for (int i=1; i<width; i++) {
  17             t = rand.nextInt(3)-1;
  18             res[i] = res[i-1] + t;
  19             if (res[i]<min) res[i] = min;
  20             if (res[i]>max) res[i] = max;
  21         }
  22         return res;
  23     }
  24
  25     static void genWorld(int width, int height) {
  26         foreMap = new int[width][height];
  27         backMap = new int[width][height];
  28         hMap = genLandscape(width, height/2, height/4, height/4*3);
  29         for (int x=0; x<width; x++) {
  30             for (int y = height- hMap[x]; y<height; y++) {
  31                 if (y==height- hMap[x]) {
  32                     foreMap[x][y] = 3;
  33                     backMap[x][y] = 3;
  34                 } else if (y<height- hMap[x]+4) {
  35                     foreMap[x][y] = 2;
  36                     backMap[x][y] = 2;
  37                 } else {
  38                     foreMap[x][y] = 1;
  39                     backMap[x][y] = 1;
  40                 }
  41             }
  42         }
  43     }
  44
  45     static int[][] getForeMap() {
  46         return foreMap;
  47     }
  48
  49     static int[][] getBackMap() {
  50         return backMap;
  51     }
  52
  53     static void clear() {
  54         foreMap = null;
  55         backMap = null;
  56     }
  57 }