src/mapgen.cpp

   1 #include <string>
   2 #include <iostream>
   3 #include <stdlib.h>
   4 #include <math.h>
   5
   6 #include "mapgen.h"
   7 #include "map.h"
   8 #include "node.h"
   9 #include "util.h"
  10 #include "game.h"
  11
  12 using namespace std;
  13 void Mapgen(){
  14         Game::log("Generating Map");
  15         //Air
  16         for(int x = 0; x < MAPWIDTH; x++){
  17                 for(int y = 0; y < MAPHEIGHT; y++){
  18                         Game::map->setNode(x,y,MAPGEN_AIR);
  19                         }
  20                 }
  21         //Seed 13 Easteregg
  22         if(Game::seed == 13){
  23                 for(int x = 0; x < MAPWIDTH; x++){
  24                         for(int y = 0; y < MAPHEIGHT; y++){
  25                                 Game::map->setNode(x,y,MAPGEN_BEDROCK);
  26                         }
  27                 }
  28                 Game::log("LOL Seed 13", EASTEREGG);
  29                 return;
  30         }
  31         //Bottom
  32         int bottom[MAPWIDTH];
  33         bottom[0] = random(MAPHEIGHT/2 - MAPHEIGHT/10, MAPHEIGHT/2);
  34         for(int x = 1; x < MAPWIDTH; x++){
  35                 bottom[x] = bottom[x-1] + random(-1,1);
  36                 }
  37         //Smooth
  38         for(int x = 1; x < MAPWIDTH-1; x++){
  39                 if(bottom[x] > bottom[x+1] && bottom[x] > bottom[x-1]) bottom[x]--;
  40                 else if(bottom[x] < bottom[x+1] && bottom[x] < bottom[x-1])bottom[x]++;
  41                 }
  42         //Dirt with Grass
  43         for(int x = 0; x < MAPWIDTH; x++){
  44                 Game::map->setNode(x,bottom[x],MAPGEN_GRASS);
  45                 }
  46         //Dirt
  47         for(int x = 0; x < MAPWIDTH; x++){
  48                 for(int y = bottom[x]+1; y < bottom[x]+5; y++){
  49                         Game::map->setNode(x,y,MAPGEN_DIRT);
  50                         }
  51                 }
  52         //Stone
  53         for(int x = 0; x < MAPWIDTH; x++){
  54                 for(int y = bottom[x]+5; y < MAPHEIGHT; y++){
  55                         Game::map->setNode(x,y,MAPGEN_STONE);
  56                         }
  57                 }
  58         //Mese
  59         for(int x = 0; x < MAPWIDTH; x++){
  60                 for(int y = bottom[x]+10; y < MAPHEIGHT; y++){
  61                         if((rand() % 100) == 0) Game::map->setNode(x,y,MAPGEN_MESE);
  62                         }
  63                 }
  64         //Bedrock
  65         for(int x = 0; x < MAPWIDTH; x++){
  66                 Game::map->setNode(x,MAPHEIGHT-1,MAPGEN_BEDROCK);
  67                 if(random(0,1) == 0){
  68                         Game::map->setNode(x,MAPHEIGHT-2,MAPGEN_BEDROCK);
  69                         if(random(0,2) == 0){
  70                                 Game::map->setNode(x,MAPHEIGHT-3,MAPGEN_BEDROCK);
  71                                 }
  72                         }
  73                 }
  74         //Water
  75         int flatcount = 0;
  76         for(int x = 1; x < MAPWIDTH; x++){
  77                 if(bottom[x] == bottom[x-1]) flatcount++;
  78                 else if(flatcount > 7){
  79                         int leftborder = rand() % 2;
  80                         int rightborder = rand() % 2;
  81                         for(int mx = x-flatcount-3; mx < x+2; mx++){
  82                                 for(int y = bottom[mx];y < bottom[mx]+5;y++){
  83                                         if(Game::map->getNode(mx,y) == MAPGEN_STONE) break;
  84                                         if(Game::map->getNode(mx,y) == MAPGEN_DIRT || Game::map->getNode(mx,y) == MAPGEN_GRASS) Game::map->setNode(mx,y,MAPGEN_SAND);
  85                                         }
  86                                 }
  87                         for(int mx = x-flatcount+leftborder;mx < x-1-rightborder;mx++) Game::map->setNode(mx,bottom[x-1],MAPGEN_WATER);
  88                         for(int mx = x-flatcount+1+leftborder;mx < x-2-rightborder;mx++) Game::map->setNode(mx,bottom[x-1]+1,MAPGEN_WATER);
  89                         for(int mx = x-flatcount+2+leftborder; mx < x-3-rightborder;mx++) Game::map->setNode(mx,bottom[x-1]+2,MAPGEN_WATER);
  90                         flatcount = 0;
  91                         }
  92                 else flatcount = 0;
  93                 }
  94         //Tree
  95         int treecount = rand() % MAPWIDTH/10;
  96         int treepos[treecount];
  97         for(int i = 0; i < treecount; i++){
  98                 while(true){
  99                         bool cont = true;
 100                         treepos[i] = rand() % MAPWIDTH;
 101                         for(int j = 0; j < i; j++){
 102                                 if(abs(treepos[j]-treepos[i]) < 3) cont = false;
 103                                 }
 104                         if(!(Game::map->getNode(treepos[i],bottom[treepos[i]]) == MAPGEN_GRASS)) cont = false;
 105                         if(cont) break;
 106                         }
 107                 int x = treepos[i];
 108                 int y = bottom[x] - 1;
 109                 Game::map->setNode(x,y,MAPGEN_WOOD);
 110                 Game::map->setNode(x,y-1,MAPGEN_WOOD);
 111                 Game::map->setNode(x,y-2,MAPGEN_LEAVES);
 112                 Game::map->setNode(x,y-3,MAPGEN_LEAVES);
 113                 Game::map->setNode(x,y-4,MAPGEN_LEAVES);
 114                 Game::map->setNode(x-1,y-2,MAPGEN_LEAVES);
 115                 Game::map->setNode(x-1,y-3,MAPGEN_LEAVES);
 116                 Game::map->setNode(x-1,y-4,MAPGEN_LEAVES);
 117                 Game::map->setNode(x+1,y-2,MAPGEN_LEAVES);
 118                 Game::map->setNode(x+1,y-3,MAPGEN_LEAVES);
 119                 Game::map->setNode(x+1,y-4,MAPGEN_LEAVES);
 120                 }
 121         }