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 02111-1307, USA.
29 #include "tilemap.hpp"
30 #include "video/drawing_context.hpp"
33 #include "resources.hpp"
34 #include "tile_manager.hpp"
35 #include "lisp/lisp.hpp"
36 #include "lisp/list_iterator.hpp"
37 #include "lisp/writer.hpp"
38 #include "object_factory.hpp"
41 #include "scripting/tilemap.hpp"
42 #include "scripting/squirrel_util.hpp"
45 : tilemanager(0), solid(false), speed_x(1), speed_y(1), width(0), height(0), z_pos(0), x_offset(0), y_offset(0),
46 drawing_effect(NO_EFFECT), alpha(1.0), current_alpha(1.0), remaining_fade_time(0),
47 draw_target(DrawingContext::NORMAL)
51 TileMap::TileMap(const lisp::Lisp& reader)
52 : tilemanager(0), solid(false), speed_x(1), speed_y(1), width(-1), height(-1), z_pos(0),
53 x_offset(0), y_offset(0),
54 drawing_effect(NO_EFFECT), alpha(1.0), current_alpha(1.0),
55 remaining_fade_time(0),
56 draw_target(DrawingContext::NORMAL)
58 tilemanager = new TileManager();
60 reader.get("name", name);
61 reader.get("z-pos", z_pos);
62 reader.get("solid", solid);
63 reader.get("speed", speed_x);
64 reader.get("speed-y", speed_y);
66 if(solid && ((speed_x != 1) || (speed_y != 1))) {
67 log_warning << "Speed of solid tilemap is not 1. fixing" << std::endl;
72 const lisp::Lisp* pathLisp = reader.get_lisp("path");
74 path.reset(new Path());
75 path->read(*pathLisp);
76 walker.reset(new PathWalker(path.get(), /*running*/false));
77 Vector v = path->get_base();
82 std::string draw_target_s = "normal";
83 reader.get("draw-target", draw_target_s);
84 if (draw_target_s == "normal") draw_target = DrawingContext::NORMAL;
85 if (draw_target_s == "lightmap") draw_target = DrawingContext::LIGHTMAP;
87 if (reader.get("alpha", alpha)) {
88 current_alpha = alpha;
91 reader.get("width", width);
92 reader.get("height", height);
93 if(width < 0 || height < 0)
94 throw std::runtime_error("Invalid/No width/height specified in tilemap.");
96 const lisp::Lisp* tilesets_reader = reader.get_lisp("tilesets");
97 if (tilesets_reader) {
98 lisp::ListIterator iter(tilesets_reader);
100 const std::string& token = iter.item();
101 if(token != "tileset") {
102 log_warning << "Skipping unrecognized token \"" << token << "\" in tilemap's tilesets list" << std::endl;
105 const lisp::Lisp* tileset_reader = iter.lisp();
107 unsigned int start = 0;
108 unsigned int end = std::numeric_limits<unsigned int>::max();
110 if (!tileset_reader->get("file", file)) {
111 log_warning << "Skipping tileset import without file name" << std::endl;
114 tileset_reader->get("start", start);
115 tileset_reader->get("end", end);
116 tileset_reader->get("offset", offset);
117 tilemanager->load_tileset(file, start, end, offset);
120 log_warning << "No tilesets list in tilemap, loading default tiles" << std::endl;
121 if (loading_worldmap) {
122 tilemanager->load_tileset("images/worldmap.strf", 0, std::numeric_limits<unsigned int>::max(), 0);
124 tilemanager->load_tileset("images/tiles.strf", 0, std::numeric_limits<unsigned int>::max(), 0);
128 if(!reader.get_vector("tiles", tiles))
129 throw std::runtime_error("No tiles in tilemap.");
131 if(int(tiles.size()) != width*height) {
132 throw std::runtime_error("wrong number of tiles in tilemap.");
135 // make sure all tiles are loaded
136 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
137 tilemanager->get(*i);
140 TileMap::TileMap(std::string name, int z_pos, bool solid, size_t width, size_t height)
141 : tilemanager(0), solid(solid), speed_x(1), speed_y(1), width(0), height(0), z_pos(z_pos),
142 x_offset(0), y_offset(0), drawing_effect(NO_EFFECT), alpha(1.0),
143 current_alpha(1.0), remaining_fade_time(0),
144 draw_target(DrawingContext::NORMAL)
148 resize(width, height);
157 TileMap::write(lisp::Writer& writer)
159 writer.start_list("tilemap");
161 writer.write_int("z-pos", z_pos);
163 writer.write_bool("solid", solid);
164 writer.write_float("speed", speed_x);
165 writer.write_float("speed-y", speed_y);
166 writer.write_int("width", width);
167 writer.write_int("height", height);
168 writer.write_int_vector("tiles", tiles);
170 writer.end_list("tilemap");
174 TileMap::update(float elapsed_time)
176 // handle tilemap fading
177 if (current_alpha != alpha) {
178 remaining_fade_time = std::max(0.0f, remaining_fade_time - elapsed_time);
179 if (remaining_fade_time == 0.0f) {
180 current_alpha = alpha;
182 float amt = (alpha - current_alpha) / (remaining_fade_time / elapsed_time);
183 if (amt > 0) current_alpha = std::min(current_alpha + amt, alpha);
184 if (amt < 0) current_alpha = std::max(current_alpha + amt, alpha);
186 if ((alpha < 0.25) && (current_alpha < 0.25)) set_solid(false);
187 if ((alpha > 0.75) && (current_alpha > 0.75)) set_solid(true);
190 // if we have a path to follow, follow it
192 Vector v = walker->advance(elapsed_time);
199 TileMap::draw(DrawingContext& context)
201 // skip draw if current opacity is set to 0.0
202 if (current_alpha == 0.0) return;
204 context.push_transform();
205 context.push_target();
206 context.set_target(draw_target);
208 if(drawing_effect != 0) context.set_drawing_effect(drawing_effect);
209 if(current_alpha != 1.0) context.set_alpha(current_alpha);
211 float trans_x = roundf(context.get_translation().x);
212 float trans_y = roundf(context.get_translation().y);
213 context.set_translation(Vector(trans_x * speed_x, trans_y * speed_y));
215 /** if we don't round here, we'll have a 1 pixel gap on screen sometimes.
216 * I have no idea why */
217 float start_x = int((roundf(context.get_translation().x) - roundf(x_offset)) / 32) * 32 + roundf(x_offset);
218 float start_y = int((roundf(context.get_translation().y) - roundf(y_offset)) / 32) * 32 + roundf(y_offset);
219 float end_x = std::min(start_x + SCREEN_WIDTH + 32, float(width * 32 + roundf(x_offset)));
220 float end_y = std::min(start_y + SCREEN_HEIGHT + 32, float(height * 32 + roundf(y_offset)));
221 int tsx = int((start_x - roundf(x_offset)) / 32); // tilestartindex x
222 int tsy = int((start_y - roundf(y_offset)) / 32); // tilestartindex y
226 for(pos.x = start_x, tx = tsx; pos.x < end_x; pos.x += 32, ++tx) {
227 for(pos.y = start_y, ty = tsy; pos.y < end_y; pos.y += 32, ++ty) {
228 if ((tx < 0) || (ty < 0)) continue;
229 const Tile* tile = tilemanager->get(tiles[ty*width + tx]);
231 tile->draw(context, pos, z_pos);
235 context.pop_target();
236 context.pop_transform();
240 TileMap::goto_node(int node_no)
242 if (!walker.get()) return;
243 walker->goto_node(node_no);
247 TileMap::start_moving()
249 if (!walker.get()) return;
250 walker->start_moving();
254 TileMap::stop_moving()
256 if (!walker.get()) return;
257 walker->stop_moving();
261 TileMap::expose(HSQUIRRELVM vm, SQInteger table_idx)
263 if (name.empty()) return;
264 Scripting::TileMap* interface = new Scripting::TileMap(this);
265 expose_object(vm, table_idx, interface, name, true);
269 TileMap::unexpose(HSQUIRRELVM vm, SQInteger table_idx)
271 if (name.empty()) return;
272 Scripting::unexpose_object(vm, table_idx, name);
276 TileMap::set(int newwidth, int newheight, const std::vector<unsigned int>&newt,
277 int new_z_pos, bool newsolid)
279 if(int(newt.size()) != newwidth * newheight)
280 throw std::runtime_error("Wrong tilecount count.");
285 tiles.resize(newt.size());
291 // make sure all tiles are loaded
292 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
293 tilemanager->get(*i);
297 TileMap::resize(int new_width, int new_height, int fill_id)
299 if(new_width < width) {
300 // remap tiles for new width
301 for(int y = 0; y < height && y < new_height; ++y) {
302 for(int x = 0; x < new_width; ++x) {
303 tiles[y * new_width + x] = tiles[y * width + x];
308 tiles.resize(new_width * new_height, fill_id);
310 if(new_width > width) {
312 for(int y = std::min(height, new_height)-1; y >= 0; --y) {
313 for(int x = new_width-1; x >= 0; --x) {
315 tiles[y * new_width + x] = fill_id;
319 tiles[y * new_width + x] = tiles[y * width + x];
329 TileMap::set_solid(bool solid)
335 TileMap::get_tile(int x, int y) const
337 if(x < 0 || x >= width || y < 0 || y >= height) {
338 //log_warning << "tile outside tilemap requested" << std::endl;
339 return tilemanager->get(0);
342 return tilemanager->get(tiles[y*width + x]);
346 TileMap::get_tile_at(const Vector& pos) const
348 return get_tile(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32);
352 TileMap::change(int x, int y, uint32_t newtile)
354 assert(x >= 0 && x < width && y >= 0 && y < height);
355 tiles[y*width + x] = newtile;
359 TileMap::change_at(const Vector& pos, uint32_t newtile)
361 change(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32, newtile);
365 TileMap::change_all(uint32_t oldtile, uint32_t newtile)
367 for (size_t x = 0; x < get_width(); x++)
368 for (size_t y = 0; y < get_height(); y++) {
369 if (get_tile(x,y)->getID() == oldtile) change(x,y,newtile);
374 TileMap::fade(float alpha, float seconds)
377 this->remaining_fade_time = seconds;
382 TileMap::set_alpha(float alpha)
385 this->current_alpha = alpha;
386 this->remaining_fade_time = 0;
387 if (current_alpha < 0.25) set_solid(false);
388 if (current_alpha > 0.75) set_solid(true);
394 return this->current_alpha;
397 bool TileMap::loading_worldmap; /**< FIXME: hack to make TileMap load default tileset if none was set */
399 IMPLEMENT_FACTORY(TileMap, "tilemap");