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) :
39 drawing_effect(NO_EFFECT),
42 remaining_fade_time(0),
45 draw_target(DrawingContext::NORMAL)
49 TileMap::TileMap(const Reader& reader) :
59 movement(Vector(0,0)),
60 drawing_effect(NO_EFFECT),
63 remaining_fade_time(0),
66 draw_target(DrawingContext::NORMAL)
68 tileset = current_tileset;
69 assert(tileset != NULL);
71 reader.get("name", name);
72 reader.get("z-pos", z_pos);
73 reader.get("solid", solid);
74 reader.get("speed", speed_x);
75 reader.get("speed-y", speed_y);
77 if(solid && ((speed_x != 1) || (speed_y != 1))) {
78 log_warning << "Speed of solid tilemap is not 1. fixing" << std::endl;
83 const lisp::Lisp* pathLisp = reader.get_lisp("path");
85 path.reset(new Path());
86 path->read(*pathLisp);
87 walker.reset(new PathWalker(path.get(), /*running*/false));
88 Vector v = path->get_base();
92 std::string draw_target_s = "normal";
93 reader.get("draw-target", draw_target_s);
94 if (draw_target_s == "normal") draw_target = DrawingContext::NORMAL;
95 if (draw_target_s == "lightmap") draw_target = DrawingContext::LIGHTMAP;
97 if (reader.get("alpha", alpha)) {
98 current_alpha = alpha;
101 reader.get("width", width);
102 reader.get("height", height);
103 if(width < 0 || height < 0)
104 throw std::runtime_error("Invalid/No width/height specified in tilemap.");
106 if(!reader.get("tiles", tiles))
107 throw std::runtime_error("No tiles in tilemap.");
109 if(int(tiles.size()) != width*height) {
110 throw std::runtime_error("wrong number of tiles in tilemap.");
115 // make sure all tiles used on the tilemap are loaded and tilemap isn't empty
116 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i) {
125 log_info << "Tilemap '" << name << "', z-pos '" << z_pos << "' is empty." << std::endl;
128 TileMap::TileMap(const TileSet *new_tileset, std::string name, int z_pos,
129 bool solid, size_t width, size_t height) :
130 tileset(new_tileset),
139 movement(Vector(0,0)),
140 drawing_effect(NO_EFFECT),
143 remaining_fade_time(0),
146 draw_target(DrawingContext::NORMAL)
150 resize(width, height);
158 TileMap::update(float elapsed_time)
160 // handle tilemap fading
161 if (current_alpha != alpha) {
162 remaining_fade_time = std::max(0.0f, remaining_fade_time - elapsed_time);
163 if (remaining_fade_time == 0.0f) {
164 current_alpha = alpha;
166 float amt = (alpha - current_alpha) / (remaining_fade_time / elapsed_time);
167 if (amt > 0) current_alpha = std::min(current_alpha + amt, alpha);
168 if (amt < 0) current_alpha = std::max(current_alpha + amt, alpha);
170 if ((alpha < 0.25) && (current_alpha < 0.25)) set_solid(false);
171 if ((alpha > 0.75) && (current_alpha > 0.75)) set_solid(true);
174 movement = Vector(0,0);
175 // if we have a path to follow, follow it
177 Vector v = walker->advance(elapsed_time);
178 movement = Vector(v.x-get_offset().x, std::max(0.0f,v.y-get_offset().y));
184 TileMap::draw(DrawingContext& context)
186 // skip draw if current opacity is 0.0
187 if (current_alpha == 0.0) return;
189 context.push_transform();
190 if(draw_target != DrawingContext::NORMAL) {
191 context.push_target();
192 context.set_target(draw_target);
195 if(drawing_effect != 0) context.set_drawing_effect(drawing_effect);
196 if(current_alpha != 1.0) context.set_alpha(current_alpha);
198 /* Force the translation to be an integer so that the tiles appear sharper.
199 * For consistency (i.e., to avoid 1-pixel gaps), this needs to be done even
200 * for solid tilemaps that are guaranteed to have speed 1.
201 * FIXME Force integer translation for all graphics, not just tilemaps. */
202 float trans_x = roundf(context.get_translation().x);
203 float trans_y = roundf(context.get_translation().y);
204 context.set_translation(Vector(int(trans_x * speed_x),
205 int(trans_y * speed_y)));
207 Rectf draw_rect = Rectf(context.get_translation(),
208 context.get_translation() + Vector(SCREEN_WIDTH, SCREEN_HEIGHT));
209 Rect t_draw_rect = get_tiles_overlapping(draw_rect);
210 Vector start = get_tile_position(t_draw_rect.left, t_draw_rect.top);
215 for(pos.x = start.x, tx = t_draw_rect.left; tx < t_draw_rect.right; pos.x += 32, ++tx) {
216 for(pos.y = start.y, ty = t_draw_rect.top; ty < t_draw_rect.bottom; pos.y += 32, ++ty) {
217 int index = ty*width + tx;
219 assert (index < (width * height));
221 if (tiles[index] == 0) continue;
222 const Tile* tile = tileset->get(tiles[index]);
224 tile->draw(context, pos, z_pos);
228 if(draw_target != DrawingContext::NORMAL) {
229 context.pop_target();
231 context.pop_transform();
235 TileMap::goto_node(int node_no)
237 if (!walker.get()) return;
238 walker->goto_node(node_no);
242 TileMap::start_moving()
244 if (!walker.get()) return;
245 walker->start_moving();
249 TileMap::stop_moving()
251 if (!walker.get()) return;
252 walker->stop_moving();
256 TileMap::expose(HSQUIRRELVM vm, SQInteger table_idx)
258 if (name.empty()) return;
259 scripting::TileMap* _this = new scripting::TileMap(this);
260 expose_object(vm, table_idx, _this, name, true);
264 TileMap::unexpose(HSQUIRRELVM vm, SQInteger table_idx)
266 if (name.empty()) return;
267 scripting::unexpose_object(vm, table_idx, name);
271 TileMap::set(int newwidth, int newheight, const std::vector<unsigned int>&newt,
272 int new_z_pos, bool newsolid)
274 if(int(newt.size()) != newwidth * newheight)
275 throw std::runtime_error("Wrong tilecount count.");
280 tiles.resize(newt.size());
286 // make sure all tiles are loaded
287 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
292 TileMap::resize(int new_width, int new_height, int fill_id)
294 if(new_width < width) {
295 // remap tiles for new width
296 for(int y = 0; y < height && y < new_height; ++y) {
297 for(int x = 0; x < new_width; ++x) {
298 tiles[y * new_width + x] = tiles[y * width + x];
303 tiles.resize(new_width * new_height, fill_id);
305 if(new_width > width) {
307 for(int y = std::min(height, new_height)-1; y >= 0; --y) {
308 for(int x = new_width-1; x >= 0; --x) {
310 tiles[y * new_width + x] = fill_id;
314 tiles[y * new_width + x] = tiles[y * width + x];
324 TileMap::get_tiles_overlapping(const Rectf &rect) const
329 int t_left = std::max(0 , int(floorf(rect2.get_left () / 32)));
330 int t_right = std::min(width , int(ceilf (rect2.get_right () / 32)));
331 int t_top = std::max(0 , int(floorf(rect2.get_top () / 32)));
332 int t_bottom = std::min(height, int(ceilf (rect2.get_bottom() / 32)));
333 return Rect(t_left, t_top, t_right, t_bottom);
337 TileMap::set_solid(bool solid)
343 TileMap::get_tile_id(int x, int y) const
345 if(x < 0 || x >= width || y < 0 || y >= height) {
346 //log_warning << "tile outside tilemap requested" << std::endl;
350 return tiles[y*width + x];
354 TileMap::get_tile(int x, int y) const
356 uint32_t id = get_tile_id(x, y);
357 return tileset->get(id);
361 TileMap::get_tile_id_at(const Vector& pos) const
363 Vector xy = (pos - offset) / 32;
364 return get_tile_id(int(xy.x), int(xy.y));
368 TileMap::get_tile_at(const Vector& pos) const
370 uint32_t id = get_tile_id_at(pos);
371 return tileset->get(id);
375 TileMap::change(int x, int y, uint32_t newtile)
377 assert(x >= 0 && x < width && y >= 0 && y < height);
378 tiles[y*width + x] = newtile;
382 TileMap::change_at(const Vector& pos, uint32_t newtile)
384 Vector xy = (pos - offset) / 32;
385 change(int(xy.x), int(xy.y), newtile);
389 TileMap::change_all(uint32_t oldtile, uint32_t newtile)
391 for (size_t x = 0; x < get_width(); x++) {
392 for (size_t y = 0; y < get_height(); y++) {
393 if (get_tile_id(x,y) != oldtile)
402 TileMap::fade(float alpha, float seconds)
405 this->remaining_fade_time = seconds;
409 TileMap::set_alpha(float alpha)
412 this->current_alpha = alpha;
413 this->remaining_fade_time = 0;
414 if (current_alpha < 0.25) set_solid(false);
415 if (current_alpha > 0.75) set_solid(true);
421 return this->current_alpha;