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"
36 #include "player_status.hpp"
38 static bool has_suffix(const std::string& data, const std::string& suffix)
40 if (data.length() >= suffix.length())
41 return data.compare(data.length() - suffix.length(), suffix.length(), suffix) == 0;
46 World* World::current_ = NULL;
51 hide_from_contribs = false;
52 sq_resetobject(&world_thread);
57 sq_release(Scripting::global_vm, &world_thread);
63 World::set_savegame_filename(const std::string& filename)
65 this->savegame_filename = filename;
66 // make sure the savegame directory exists
67 std::string dirname = FileSystem::dirname(filename);
68 if(!PHYSFS_exists(dirname.c_str())) {
69 if(PHYSFS_mkdir(dirname.c_str())) {
70 std::ostringstream msg;
71 msg << "Couldn't create directory for savegames '"
72 << dirname << "': " <<PHYSFS_getLastError();
73 throw std::runtime_error(msg.str());
77 if(!PHYSFS_isDirectory(dirname.c_str())) {
78 std::ostringstream msg;
79 msg << "Savegame path '" << dirname << "' is not a directory";
80 throw std::runtime_error(msg.str());
85 World::load(const std::string& filename)
87 basedir = FileSystem::dirname(filename);
90 const lisp::Lisp* root = parser.parse(filename);
92 const lisp::Lisp* info = root->get_lisp("supertux-world");
94 info = root->get_lisp("supertux-level-subset");
96 throw std::runtime_error("File is not a world or levelsubset file");
98 hide_from_contribs = false;
101 info->get("title", title);
102 info->get("description", description);
103 info->get("levelset", is_levelset);
104 info->get_vector("levels", levels);
105 info->get("hide-from-contribs", hide_from_contribs);
107 // Level info file doesn't define any levels, so read the
108 // directory to see what we can find
110 std::string path = basedir;
111 char** files = PHYSFS_enumerateFiles(path.c_str());
113 log_warning << "Couldn't read subset dir '" << path << "'" << std::endl;
117 for(const char* const* filename = files; *filename != 0; ++filename) {
118 if(has_suffix(*filename, ".stl")) {
119 levels.push_back(path + *filename);
122 PHYSFS_freeList(files);
128 using namespace Scripting;
132 // create new squirrel table for persistent game state
133 HSQUIRRELVM vm = Scripting::global_vm;
135 sq_pushroottable(vm);
136 sq_pushstring(vm, "state", -1);
138 if(SQ_FAILED(sq_createslot(vm, -3)))
139 throw Scripting::SquirrelError(vm, "Couldn't create state table");
144 std::string filename = basedir + "/world.nut";
146 IFileStream in(filename);
148 sq_release(global_vm, &world_thread);
149 world_thread = create_thread(global_vm);
150 compile_and_run(object_to_vm(world_thread), in, filename);
151 } catch(std::exception& ) {
152 // fallback: try to load worldmap worldmap.stwm
153 using namespace WorldMapNS;
154 main_loop->push_screen(new WorldMap(basedir + "worldmap.stwm"));
161 using namespace Scripting;
163 lisp::Writer writer(savegame_filename);
165 writer.start_list("supertux-savegame");
166 writer.write_int("version", 1);
168 using namespace WorldMapNS;
169 if(WorldMap::current() != NULL) {
170 std::ostringstream title;
171 title << WorldMap::current()->get_title();
172 title << " (" << WorldMap::current()->solved_level_count()
173 << "/" << WorldMap::current()->level_count() << ")";
174 writer.write_string("title", title.str());
177 writer.start_list("tux");
178 player_status->write(writer);
179 writer.end_list("tux");
181 writer.start_list("state");
183 sq_pushroottable(global_vm);
184 sq_pushstring(global_vm, "state", -1);
185 if(SQ_SUCCEEDED(sq_get(global_vm, -2))) {
186 Scripting::save_squirrel_table(global_vm, -1, writer);
187 sq_pop(global_vm, 1);
189 sq_pop(global_vm, 1);
190 writer.end_list("state");
192 writer.end_list("supertux-savegame");
198 using namespace Scripting;
202 const lisp::Lisp* root = parser.parse(savegame_filename);
204 const lisp::Lisp* lisp = root->get_lisp("supertux-savegame");
206 throw std::runtime_error("file is not a supertux-savegame file");
209 lisp->get("version", version);
211 throw std::runtime_error("incompatible savegame version");
213 const lisp::Lisp* tux = lisp->get_lisp("tux");
215 throw std::runtime_error("No tux section in savegame");
216 player_status->read(*tux);
218 const lisp::Lisp* state = lisp->get_lisp("state");
220 throw std::runtime_error("No state section in savegame");
222 sq_pushroottable(global_vm);
223 sq_pushstring(global_vm, "state", -1);
224 if(SQ_FAILED(sq_deleteslot(global_vm, -2, SQFalse)))
225 sq_pop(global_vm, 1);
227 sq_pushstring(global_vm, "state", -1);
228 sq_newtable(global_vm);
229 load_squirrel_table(global_vm, -1, state);
230 if(SQ_FAILED(sq_createslot(global_vm, -3)))
231 throw std::runtime_error("Couldn't create state table");
232 sq_pop(global_vm, 1);
233 } catch(std::exception& e) {
234 log_debug << "Couldn't load savegame: " << e.what() << std::endl;
239 World::get_level_filename(unsigned int i) const
245 World::get_num_levels() const
247 return levels.size();
251 World::get_basedir() const