4 // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
6 // This program is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU General Public License
8 // as published by the Free Software Foundation; either version 2
9 // of the License, or (at your option) any later version.
11 // This program is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this program; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
27 #include "file_system.hpp"
28 #include "lisp/parser.hpp"
29 #include "lisp/lisp.hpp"
30 #include "physfs/physfs_stream.hpp"
31 #include "scripting/squirrel_util.hpp"
32 #include "scripting/serialize.hpp"
34 #include "worldmap/worldmap.hpp"
35 #include "mainloop.hpp"
37 static bool has_suffix(const std::string& data, const std::string& suffix)
39 if (data.length() >= suffix.length())
40 return data.compare(data.length() - suffix.length(), suffix.length(), suffix) == 0;
45 World* World::current_ = NULL;
50 hide_from_contribs = false;
51 sq_resetobject(&world_thread);
56 sq_release(Scripting::global_vm, &world_thread);
62 World::set_savegame_filename(const std::string& filename)
64 this->savegame_filename = filename;
65 // make sure the savegame directory exists
66 std::string dirname = FileSystem::dirname(filename);
67 if(!PHYSFS_exists(dirname.c_str())) {
68 if(PHYSFS_mkdir(dirname.c_str())) {
69 std::ostringstream msg;
70 msg << "Couldn't create directory for savegames '"
71 << dirname << "': " <<PHYSFS_getLastError();
72 throw std::runtime_error(msg.str());
76 if(!PHYSFS_isDirectory(dirname.c_str())) {
77 std::ostringstream msg;
78 msg << "Savegame path '" << dirname << "' is not a directory";
79 throw std::runtime_error(msg.str());
84 World::load(const std::string& filename)
86 basedir = FileSystem::dirname(filename);
89 std::auto_ptr<lisp::Lisp> root (parser.parse(filename));
91 const lisp::Lisp* info = root->get_lisp("supertux-world");
93 info = root->get_lisp("supertux-level-subset");
95 throw std::runtime_error("File is not a world or levelsubset file");
97 hide_from_contribs = false;
100 info->get("title", title);
101 info->get("description", description);
102 info->get("levelset", is_levelset);
103 info->get_vector("levels", levels);
104 info->get("hide-from-contribs", hide_from_contribs);
106 // Level info file doesn't define any levels, so read the
107 // directory to see what we can find
109 std::string path = basedir + "/";
110 char** files = PHYSFS_enumerateFiles(path.c_str());
112 log_warning << "Couldn't read subset dir '" << path << "'" << std::endl;
116 for(const char* const* filename = files; *filename != 0; ++filename) {
117 if(has_suffix(*filename, ".stl")) {
118 levels.push_back(path + *filename);
121 PHYSFS_freeList(files);
127 using namespace Scripting;
131 // create new squirrel table for persisten game state
132 HSQUIRRELVM vm = Scripting::global_vm;
134 sq_pushroottable(vm);
135 sq_pushstring(vm, "state", -1);
137 if(SQ_FAILED(sq_createslot(vm, -3)))
138 throw Scripting::SquirrelError(vm, "Couldn't create state table");
143 std::string filename = basedir + "/world.nut";
145 IFileStream in(filename);
147 sq_release(global_vm, &world_thread);
148 world_thread = create_thread(global_vm);
149 compile_and_run(object_to_vm(world_thread), in, filename);
150 } catch(std::exception& e) {
151 // fallback: try to load worldmap worldmap.stwm
152 using namespace WorldMapNS;
153 main_loop->push_screen(new WorldMap(basedir + "worldmap.stwm"));
160 using namespace Scripting;
162 lisp::Writer writer(savegame_filename);
164 writer.start_list("supertux-savegame");
165 writer.write_int("version", 1);
167 using namespace WorldMapNS;
168 if(WorldMap::current() != NULL) {
169 std::ostringstream title;
170 title << WorldMap::current()->get_title();
171 title << " (" << WorldMap::current()->solved_level_count()
172 << "/" << WorldMap::current()->level_count() << ")";
173 writer.write_string("title", title.str());
176 writer.start_list("tux");
177 player_status->write(writer);
178 writer.end_list("tux");
180 writer.start_list("state");
182 sq_pushroottable(global_vm);
183 sq_pushstring(global_vm, "state", -1);
184 if(SQ_SUCCEEDED(sq_get(global_vm, -2))) {
185 Scripting::save_squirrel_table(global_vm, -1, writer);
186 sq_pop(global_vm, 1);
188 sq_pop(global_vm, 1);
189 writer.end_list("state");
191 writer.end_list("supertux-savegame");
197 using namespace Scripting;
201 std::auto_ptr<lisp::Lisp> root (parser.parse(savegame_filename));
203 const lisp::Lisp* lisp = root->get_lisp("supertux-savegame");
205 throw std::runtime_error("file is not a supertux-savegame file");
208 lisp->get("version", version);
210 throw std::runtime_error("incompatible savegame version");
212 const lisp::Lisp* tux = lisp->get_lisp("tux");
214 throw std::runtime_error("No tux section in savegame");
215 player_status->read(*tux);
217 const lisp::Lisp* state = lisp->get_lisp("state");
219 throw std::runtime_error("No state section in savegame");
221 sq_pushroottable(global_vm);
222 sq_pushstring(global_vm, "state", -1);
223 if(SQ_FAILED(sq_deleteslot(global_vm, -2, SQFalse)))
224 sq_pop(global_vm, 1);
226 sq_pushstring(global_vm, "state", -1);
227 sq_newtable(global_vm);
228 load_squirrel_table(global_vm, -1, state);
229 if(SQ_FAILED(sq_createslot(global_vm, -3)))
230 throw std::runtime_error("Couldn't create state table");
231 sq_pop(global_vm, 1);
232 } catch(std::exception& e) {
233 log_debug << "Couldn't load savegame: " << e.what() << std::endl;
238 World::get_level_filename(unsigned int i) const
244 World::get_num_levels() const
246 return levels.size();
250 World::get_basedir() const