src/core/world.c

   1 /************************************************************************
   2 * world.c
   3 * voxelands - 3d voxel world sandbox game
   4 * Copyright (C) Lisa 'darkrose' Milne 2016 <lisa@ltmnet.com>
   5 *
   6 * This program is free software: you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation, either version 3 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * This program is distributed in the hope that it will be useful, but
  12 * WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  14 * See the GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program.  If not, see <http://www.gnu.org/licenses/>
  18 ************************************************************************/
  19
  20 #include "common.h"
  21 #include "path.h"
  22
  23 #include "map.h"
  24
  25 #include <stdio.h>
  26
  27 /*
  28 static struct {
  29 } world_data = {
  30 };
  31 */
  32
  33 static int world_create_new()
  34 {
  35         char buff[2048];
  36         char name[256];
  37         int i;
  38
  39         if (!path_get("worlds","new_world",1,buff,2048)) {
  40                 if (!path_get("worlds","new_world",0,buff,2048))
  41                         return 1;
  42
  43                 command_execf("set world.path %s",buff);
  44                 command_execf("set world.name New World");
  45
  46                 return 0;
  47         }
  48
  49         for (i=1; i<100; i++) {
  50                 snprintf(name,256,"new_world_%d",i);
  51                 if (!path_get("worlds",name,1,buff,2048)) {
  52                         if (!path_get("worlds",name,0,buff,2048))
  53                                 return 1;
  54
  55                         command_execf("set world.path %s",buff);
  56                         command_execf("set world.name New World %d",i);
  57
  58                         return 0;
  59                 }
  60         }
  61
  62         return 1;
  63 }
  64
  65 static void world_clear_cfg()
  66 {
  67         config_set("world.name",NULL);
  68         config_set("world.path",NULL);
  69         config_set("world.map.seed",NULL);
  70 }
  71
  72 /* initialise and/or create a world */
  73 int world_init(char* name)
  74 {
  75         char buff[2048];
  76
  77         world_clear_cfg();
  78
  79         if (!name) {
  80                 if (world_create_new())
  81                         return 1;
  82         }else{
  83                 if (str_sanitise(buff,2048,name) < 1)
  84                         return 1;
  85
  86                 vlprintf(CN_INFO,"world: '%s' '%s'",name,buff);
  87
  88                 command_execf("set world.path %s",buff);
  89                 command_execf("set world.name %s",name);
  90         }
  91
  92         /* TODO: init environment before loading config, so that env commands work */
  93
  94         if (path_get("world","world.cfg",1,buff,2048)) {
  95                 config_load(buff);
  96         }else{
  97                 /* TODO: setup world config from ui/config options */
  98                 if (config_get("map.seed")) {
  99                         int s = config_get_int("map.seed");
 100                         config_set_int("world.map.seed",s);
 101                 }
 102         }
 103
 104         /* TODO: setup new/missing world config */
 105
 106         if (!config_get("world.map.seed")) {
 107                 int s = math_rand_range(-999999,999999);
 108                 config_set_int("world.map.seed",s);
 109                 mapgen_seed(s);
 110         }else{
 111                 int s = config_get_int("world.map.seed");
 112                 mapgen_seed(s);
 113         }
 114
 115         /* TODO: add any server-side map triggers */
 116
 117         map_init();
 118
 119         return 0;
 120 }
 121
 122 /* shutdown, save, clear, and free the current world */
 123 void world_exit()
 124 {
 125         map_exit();
 126         config_save("world","world","world.cfg");
 127         world_clear_cfg();
 128         map_trigger_clear();
 129 }