2 // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
4 // This program is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
9 // This program is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with this program. If not, see <http://www.gnu.org/licenses/>.
19 #include "object/tilemap.hpp"
20 #include "scripting/squirrel_util.hpp"
21 #include "scripting/tilemap.hpp"
22 #include "supertux/globals.hpp"
23 #include "supertux/object_factory.hpp"
24 #include "supertux/tile_manager.hpp"
25 #include "supertux/tile_set.hpp"
26 #include "util/reader.hpp"
28 TileMap::TileMap(const TileSet *new_tileset) :
40 drawing_effect(NO_EFFECT),
43 remaining_fade_time(0),
46 draw_target(DrawingContext::NORMAL)
50 TileMap::TileMap(const Reader& reader) :
61 movement(Vector(0,0)),
62 drawing_effect(NO_EFFECT),
65 remaining_fade_time(0),
68 draw_target(DrawingContext::NORMAL)
70 tileset = current_tileset;
71 assert(tileset != NULL);
73 reader.get("name", name);
74 reader.get("z-pos", z_pos);
75 reader.get("solid", solid);
76 reader.get("speed", speed_x);
77 reader.get("speed-y", speed_y);
79 if(solid && ((speed_x != 1) || (speed_y != 1))) {
80 log_warning << "Speed of solid tilemap is not 1. fixing" << std::endl;
85 const lisp::Lisp* pathLisp = reader.get_lisp("path");
87 path.reset(new Path());
88 path->read(*pathLisp);
89 walker.reset(new PathWalker(path.get(), /*running*/false));
90 Vector v = path->get_base();
95 std::string draw_target_s = "normal";
96 reader.get("draw-target", draw_target_s);
97 if (draw_target_s == "normal") draw_target = DrawingContext::NORMAL;
98 if (draw_target_s == "lightmap") draw_target = DrawingContext::LIGHTMAP;
100 if (reader.get("alpha", alpha)) {
101 current_alpha = alpha;
104 reader.get("width", width);
105 reader.get("height", height);
106 if(width < 0 || height < 0)
107 throw std::runtime_error("Invalid/No width/height specified in tilemap.");
109 if(!reader.get("tiles", tiles))
110 throw std::runtime_error("No tiles in tilemap.");
112 if(int(tiles.size()) != width*height) {
113 throw std::runtime_error("wrong number of tiles in tilemap.");
118 // make sure all tiles used on the tilemap are loaded and tilemap isn't empty
119 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i) {
128 log_info << "Tilemap '" << name << "', z-pos '" << z_pos << "' is empty." << std::endl;
131 TileMap::TileMap(const TileSet *new_tileset, std::string name, int z_pos,
132 bool solid, size_t width, size_t height) :
133 tileset(new_tileset),
143 movement(Vector(0,0)),
144 drawing_effect(NO_EFFECT),
147 remaining_fade_time(0),
150 draw_target(DrawingContext::NORMAL)
154 resize(width, height);
162 TileMap::update(float elapsed_time)
164 // handle tilemap fading
165 if (current_alpha != alpha) {
166 remaining_fade_time = std::max(0.0f, remaining_fade_time - elapsed_time);
167 if (remaining_fade_time == 0.0f) {
168 current_alpha = alpha;
170 float amt = (alpha - current_alpha) / (remaining_fade_time / elapsed_time);
171 if (amt > 0) current_alpha = std::min(current_alpha + amt, alpha);
172 if (amt < 0) current_alpha = std::max(current_alpha + amt, alpha);
174 if ((alpha < 0.25) && (current_alpha < 0.25)) set_solid(false);
175 if ((alpha > 0.75) && (current_alpha > 0.75)) set_solid(true);
178 movement = Vector(0,0);
179 // if we have a path to follow, follow it
181 Vector v = walker->advance(elapsed_time);
182 movement = Vector(v.x-get_x_offset(), std::max(0.0f,v.y-get_y_offset()));
189 TileMap::draw(DrawingContext& context)
191 // skip draw if current opacity is 0.0
192 if (current_alpha == 0.0) return;
194 context.push_transform();
195 if(draw_target != DrawingContext::NORMAL) {
196 context.push_target();
197 context.set_target(draw_target);
200 if(drawing_effect != 0) context.set_drawing_effect(drawing_effect);
201 if(current_alpha != 1.0) context.set_alpha(current_alpha);
203 /* Force the translation to be an integer so that the tiles appear sharper.
204 * For consistency (i.e., to avoid 1-pixel gaps), this needs to be done even
205 * for solid tilemaps that are guaranteed to have speed 1.
206 * FIXME Force integer translation for all graphics, not just tilemaps. */
207 float trans_x = roundf(context.get_translation().x);
208 float trans_y = roundf(context.get_translation().y);
209 context.set_translation(Vector(int(trans_x * speed_x),
210 int(trans_y * speed_y)));
212 int tsx = int((context.get_translation().x - x_offset) / 32); // tilestartindex x
213 int tsy = int((context.get_translation().y - y_offset) / 32); // tilestartindex y
214 tsx = std::max(tsx, 0);
215 tsy = std::max(tsy, 0);
216 float start_x = tsx * 32 + x_offset;
217 float start_y = tsy * 32 + y_offset;
218 float end_x = start_x + SCREEN_WIDTH + 32;
219 float end_y = start_y + SCREEN_HEIGHT + 32;
224 for(pos.x = start_x, tx = tsx; (pos.x < end_x) && (tx < width); pos.x += 32, ++tx) {
225 for(pos.y = start_y, ty = tsy; (pos.y < end_y) && (ty < height); pos.y += 32, ++ty) {
226 int index = ty*width + tx;
228 assert (index < (width * height));
230 if (tiles[index] == 0) continue;
231 const Tile* tile = tileset->get(tiles[index]);
233 tile->draw(context, pos, z_pos);
237 if(draw_target != DrawingContext::NORMAL) {
238 context.pop_target();
240 context.pop_transform();
244 TileMap::goto_node(int node_no)
246 if (!walker.get()) return;
247 walker->goto_node(node_no);
251 TileMap::start_moving()
253 if (!walker.get()) return;
254 walker->start_moving();
258 TileMap::stop_moving()
260 if (!walker.get()) return;
261 walker->stop_moving();
265 TileMap::expose(HSQUIRRELVM vm, SQInteger table_idx)
267 if (name.empty()) return;
268 scripting::TileMap* _this = new scripting::TileMap(this);
269 expose_object(vm, table_idx, _this, name, true);
273 TileMap::unexpose(HSQUIRRELVM vm, SQInteger table_idx)
275 if (name.empty()) return;
276 scripting::unexpose_object(vm, table_idx, name);
280 TileMap::set(int newwidth, int newheight, const std::vector<unsigned int>&newt,
281 int new_z_pos, bool newsolid)
283 if(int(newt.size()) != newwidth * newheight)
284 throw std::runtime_error("Wrong tilecount count.");
289 tiles.resize(newt.size());
295 // make sure all tiles are loaded
296 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
301 TileMap::resize(int new_width, int new_height, int fill_id)
303 if(new_width < width) {
304 // remap tiles for new width
305 for(int y = 0; y < height && y < new_height; ++y) {
306 for(int x = 0; x < new_width; ++x) {
307 tiles[y * new_width + x] = tiles[y * width + x];
312 tiles.resize(new_width * new_height, fill_id);
314 if(new_width > width) {
316 for(int y = std::min(height, new_height)-1; y >= 0; --y) {
317 for(int x = new_width-1; x >= 0; --x) {
319 tiles[y * new_width + x] = fill_id;
323 tiles[y * new_width + x] = tiles[y * width + x];
333 TileMap::set_solid(bool solid)
339 TileMap::get_tile_id(int x, int y) const
341 if(x < 0 || x >= width || y < 0 || y >= height) {
342 //log_warning << "tile outside tilemap requested" << std::endl;
346 return tiles[y*width + x];
350 TileMap::get_tile(int x, int y) const
352 uint32_t id = get_tile_id(x, y);
353 return tileset->get(id);
357 TileMap::get_tile_id_at(const Vector& pos) const
359 return get_tile_id(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32);
363 TileMap::get_tile_at(const Vector& pos) const
365 uint32_t id = get_tile_id_at(pos);
366 return tileset->get(id);
370 TileMap::change(int x, int y, uint32_t newtile)
372 assert(x >= 0 && x < width && y >= 0 && y < height);
373 tiles[y*width + x] = newtile;
377 TileMap::change_at(const Vector& pos, uint32_t newtile)
379 change(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32, newtile);
383 TileMap::change_all(uint32_t oldtile, uint32_t newtile)
385 for (size_t x = 0; x < get_width(); x++) {
386 for (size_t y = 0; y < get_height(); y++) {
387 if (get_tile_id(x,y) != oldtile)
396 TileMap::fade(float alpha, float seconds)
399 this->remaining_fade_time = seconds;
403 TileMap::set_alpha(float alpha)
406 this->current_alpha = alpha;
407 this->remaining_fade_time = 0;
408 if (current_alpha < 0.25) set_solid(false);
409 if (current_alpha > 0.75) set_solid(true);
415 return this->current_alpha;