3 // Pingus - A free Lemmings clone
4 // Copyright (C) 2002 Ingo Ruhnke <grumbel@gmx.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 02111-1307, USA.
25 #include "lispreader.h"
29 namespace WorldMapNS {
31 TileManager* TileManager::instance_ = 0;
33 TileManager::TileManager()
36 FILE* in = fopen(DATA_PREFIX "images/worldmap/antarctica.scm", "r");
38 lisp_stream_init_file (&stream, in);
39 lisp_object_t* root_obj = lisp_read (&stream);
41 if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap-tiles") == 0)
43 lisp_object_t* cur = lisp_cdr(root_obj);
45 while(!lisp_nil_p(cur))
47 lisp_object_t* element = lisp_car(cur);
49 if (strcmp(lisp_symbol(lisp_car(element)), "tile") == 0)
52 std::string filename = "<invalid>";
54 Tile* tile = new Tile;
61 LispReader reader(lisp_cdr(element));
62 reader.read_int("id", &id);
63 reader.read_bool("north", &tile->north);
64 reader.read_bool("south", &tile->south);
65 reader.read_bool("west", &tile->west);
66 reader.read_bool("east", &tile->east);
67 reader.read_bool("stop", &tile->stop);
68 reader.read_string("image", &filename);
70 texture_load(&tile->sprite,
71 const_cast<char*>((std::string(DATA_PREFIX "/images/worldmap/") + filename).c_str()),
74 if (id >= int(tiles.size()))
81 puts("Unhandled symbol");
94 TileManager::get(int i)
96 assert(i >=0 && i < int(tiles.size()));
100 Tux::Tux(WorldMap* worldmap_)
101 : worldmap(worldmap_)
103 texture_load(&sprite, DATA_PREFIX "/images/worldmap/tux.png", USE_ALPHA);
109 input_direction = NONE;
115 float x = tile_pos.x * 32;
116 float y = tile_pos.y * 32;
136 texture_draw(&sprite, (int)x, (int)y, NO_UPDATE);
148 Tux::update(float delta)
152 if (input_direction != NONE)
153 { // We got a new direction, so lets start walking when possible
155 if (worldmap->path_ok(input_direction, tile_pos, &next_tile))
157 tile_pos = next_tile;
159 direction = input_direction;
165 // Let tux walk a few pixels (20 pixel/sec)
166 offset += 20.0f * delta;
169 { // We reached the next tile, so we check what to do now
172 if (worldmap->at(tile_pos)->stop)
179 if (worldmap->path_ok(direction, tile_pos, &next_tile))
181 tile_pos = next_tile;
185 puts("Tilemap data is buggy");
201 texture_load(&level_sprite, DATA_PREFIX "/images/worldmap/levelmarker.png", USE_ALPHA);
203 input_direction = NONE;
207 music = "SALCON.MOD";
213 WorldMap::~WorldMap()
221 lisp_stream_t stream;
222 FILE* in = fopen(DATA_PREFIX "levels/default/worldmap.scm", "r");
224 lisp_stream_init_file (&stream, in);
225 lisp_object_t* root_obj = lisp_read (&stream);
227 if (strcmp(lisp_symbol(lisp_car(root_obj)), "supertux-worldmap") == 0)
229 lisp_object_t* cur = lisp_cdr(root_obj);
231 while(!lisp_nil_p(cur))
233 lisp_object_t* element = lisp_car(cur);
235 if (strcmp(lisp_symbol(lisp_car(element)), "tilemap") == 0)
237 LispReader reader(lisp_cdr(element));
238 reader.read_int("width", &width);
239 reader.read_int("height", &height);
240 reader.read_int_vector("data", &tilemap);
242 else if (strcmp(lisp_symbol(lisp_car(element)), "properties") == 0)
244 LispReader reader(lisp_cdr(element));
245 reader.read_string("name", &name);
246 reader.read_string("music", &music);
248 else if (strcmp(lisp_symbol(lisp_car(element)), "levels") == 0)
250 lisp_object_t* cur = lisp_cdr(element);
252 while(!lisp_nil_p(cur))
254 lisp_object_t* element = lisp_car(cur);
256 if (strcmp(lisp_symbol(lisp_car(element)), "level") == 0)
259 LispReader reader(lisp_cdr(element));
260 reader.read_string("name", &level.name);
261 reader.read_int("x-pos", &level.x);
262 reader.read_int("y-pos", &level.y);
263 levels.push_back(level);
280 WorldMap::get_input()
286 while (SDL_PollEvent(&event))
295 switch(event.key.keysym.sym)
311 Uint8 *keystate = SDL_GetKeyState(NULL);
313 input_direction = NONE;
315 if (keystate[SDLK_LEFT])
316 input_direction = WEST;
317 else if (keystate[SDLK_RIGHT])
318 input_direction = EAST;
319 else if (keystate[SDLK_UP])
320 input_direction = NORTH;
321 else if (keystate[SDLK_DOWN])
322 input_direction = SOUTH;
326 WorldMap::get_next_tile(Point pos, Direction direction)
349 WorldMap::path_ok(Direction direction, Point old_pos, Point* new_pos)
351 *new_pos = get_next_tile(old_pos, direction);
353 if (!(new_pos->x >= 0 && new_pos->x < width
354 && new_pos->y >= 0 && new_pos->y < height))
355 { // New position is outsite the tilemap
359 { // Check if we the tile allows us to go to new_pos
363 return (at(old_pos)->west && at(*new_pos)->east);
366 return (at(old_pos)->east && at(*new_pos)->west);
369 return (at(old_pos)->north && at(*new_pos)->south);
372 return (at(old_pos)->south && at(*new_pos)->north);
375 assert(!"path_ok() can't work if direction is NONE");
384 if (enter_level && !tux->is_moving())
386 for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
388 if (i->x == tux->get_tile_pos().x &&
389 i->y == tux->get_tile_pos().y)
391 std::cout << "Enter the current level: " << i->name << std::endl;;
393 gameloop(const_cast<char*>((DATA_PREFIX "levels/default/" + i->name).c_str()),
394 1, ST_GL_LOAD_LEVEL_FILE);
402 tux->set_direction(input_direction);
408 WorldMap::at(Point p)
414 return TileManager::instance()->get(tilemap[width * p.y + p.x]);
420 for(int y = 0; y < height; ++y)
421 for(int x = 0; x < width; ++x)
423 Tile* tile = at(Point(x, y));
424 texture_draw(&tile->sprite, x*32, y*32, NO_UPDATE);
427 for(Levels::iterator i = levels.begin(); i != levels.end(); ++i)
429 texture_draw(&level_sprite, i->x*32, i->y*32, NO_UPDATE);
441 song = load_song(const_cast<char*>((DATA_PREFIX "/music/" + music).c_str()));
454 } // namespace WorldMapNS
458 WorldMapNS::WorldMap worldmap;