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 "lisp/lisp.hpp"
35 #include "lisp/list_iterator.hpp"
36 #include "lisp/writer.hpp"
37 #include "object_factory.hpp"
40 #include "tile_set.hpp"
41 #include "tile_manager.hpp"
42 #include "scripting/tilemap.hpp"
43 #include "scripting/squirrel_util.hpp"
45 TileMap::TileMap(const TileSet *new_tileset)
46 : tileset(new_tileset), solid(false), speed_x(1), speed_y(1), width(0),
47 height(0), z_pos(0), x_offset(0), y_offset(0), movement(Vector(0,0)), drawing_effect(NO_EFFECT),
48 alpha(1.0), current_alpha(1.0), remaining_fade_time(0),
49 draw_target(DrawingContext::NORMAL)
53 TileMap::TileMap(const lisp::Lisp& reader)
54 : solid(false), speed_x(1), speed_y(1), width(-1),
55 height(-1), z_pos(0), x_offset(0), y_offset(0), movement(Vector(0,0)), drawing_effect(NO_EFFECT),
56 alpha(1.0), current_alpha(1.0), remaining_fade_time(0),
57 draw_target(DrawingContext::NORMAL)
59 tileset = current_tileset;
60 assert(tileset != NULL);
62 reader.get("name", name);
63 reader.get("z-pos", z_pos);
64 reader.get("solid", solid);
65 reader.get("speed", speed_x);
66 reader.get("speed-y", speed_y);
68 if(solid && ((speed_x != 1) || (speed_y != 1))) {
69 log_warning << "Speed of solid tilemap is not 1. fixing" << std::endl;
74 const lisp::Lisp* pathLisp = reader.get_lisp("path");
76 path.reset(new Path());
77 path->read(*pathLisp);
78 walker.reset(new PathWalker(path.get(), /*running*/false));
79 Vector v = path->get_base();
84 std::string draw_target_s = "normal";
85 reader.get("draw-target", draw_target_s);
86 if (draw_target_s == "normal") draw_target = DrawingContext::NORMAL;
87 if (draw_target_s == "lightmap") draw_target = DrawingContext::LIGHTMAP;
89 if (reader.get("alpha", alpha)) {
90 current_alpha = alpha;
93 reader.get("width", width);
94 reader.get("height", height);
95 if(width < 0 || height < 0)
96 throw std::runtime_error("Invalid/No width/height specified in tilemap.");
98 if(!reader.get("tiles", tiles))
99 throw std::runtime_error("No tiles in tilemap.");
101 if(int(tiles.size()) != width*height) {
102 throw std::runtime_error("wrong number of tiles in tilemap.");
107 // make sure all tiles used on the tilemap are loaded and tilemap isn't empty
108 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i) {
117 log_info << "Tilemap '" << name << "', z-pos '" << z_pos << "' is empty." << std::endl;
120 TileMap::TileMap(const TileSet *new_tileset, std::string name, int z_pos,
121 bool solid, size_t width, size_t height)
122 : tileset(new_tileset), solid(solid), speed_x(1), speed_y(1), width(0),
123 height(0), z_pos(z_pos), x_offset(0), y_offset(0), movement(Vector(0,0)),
124 drawing_effect(NO_EFFECT), alpha(1.0), current_alpha(1.0),
125 remaining_fade_time(0), draw_target(DrawingContext::NORMAL)
129 resize(width, height);
137 TileMap::write(lisp::Writer& writer)
139 writer.start_list("tilemap");
141 writer.write("z-pos", z_pos);
143 writer.write("solid", solid);
144 writer.write("speed", speed_x);
145 writer.write("speed-y", speed_y);
146 writer.write("width", width);
147 writer.write("height", height);
148 writer.write("tiles", tiles);
150 writer.end_list("tilemap");
154 TileMap::update(float elapsed_time)
156 // handle tilemap fading
157 if (current_alpha != alpha) {
158 remaining_fade_time = std::max(0.0f, remaining_fade_time - elapsed_time);
159 if (remaining_fade_time == 0.0f) {
160 current_alpha = alpha;
162 float amt = (alpha - current_alpha) / (remaining_fade_time / elapsed_time);
163 if (amt > 0) current_alpha = std::min(current_alpha + amt, alpha);
164 if (amt < 0) current_alpha = std::max(current_alpha + amt, alpha);
166 if ((alpha < 0.25) && (current_alpha < 0.25)) set_solid(false);
167 if ((alpha > 0.75) && (current_alpha > 0.75)) set_solid(true);
170 movement = Vector(0,0);
171 // if we have a path to follow, follow it
173 Vector v = walker->advance(elapsed_time);
174 movement = Vector(v.x-get_x_offset(), std::max(0.0f,v.y-get_y_offset()));
181 TileMap::draw(DrawingContext& context)
183 // skip draw if current opacity is set to 0.0
184 if (current_alpha == 0.0) return;
186 context.push_transform();
187 context.push_target();
188 context.set_target(draw_target);
190 if(drawing_effect != 0) context.set_drawing_effect(drawing_effect);
191 if(current_alpha != 1.0) context.set_alpha(current_alpha);
193 float trans_x = roundf(context.get_translation().x);
194 float trans_y = roundf(context.get_translation().y);
195 context.set_translation(Vector(int(trans_x * speed_x),
196 int(trans_y * speed_y)));
198 /** if we don't round here, we'll have a 1 pixel gap on screen sometimes.
199 * I have no idea why */
200 float start_x = int((roundf(context.get_translation().x) - roundf(x_offset)) / 32) * 32 + roundf(x_offset);
201 float start_y = int((roundf(context.get_translation().y) - roundf(y_offset)) / 32) * 32 + roundf(y_offset);
202 float end_x = std::min(start_x + SCREEN_WIDTH + 32, float(width * 32 + roundf(x_offset)));
203 float end_y = std::min(start_y + SCREEN_HEIGHT + 32, float(height * 32 + roundf(y_offset)));
204 int tsx = int((start_x - roundf(x_offset)) / 32); // tilestartindex x
205 int tsy = int((start_y - roundf(y_offset)) / 32); // tilestartindex y
209 for(pos.x = start_x, tx = tsx; pos.x < end_x; pos.x += 32, ++tx) {
210 for(pos.y = start_y, ty = tsy; pos.y < end_y; pos.y += 32, ++ty) {
211 if ((tx < 0) || (ty < 0)) continue;
212 const Tile* tile = tileset->get(tiles[ty*width + tx]);
214 tile->draw(context, pos, z_pos);
218 context.pop_target();
219 context.pop_transform();
223 TileMap::goto_node(int node_no)
225 if (!walker.get()) return;
226 walker->goto_node(node_no);
230 TileMap::start_moving()
232 if (!walker.get()) return;
233 walker->start_moving();
237 TileMap::stop_moving()
239 if (!walker.get()) return;
240 walker->stop_moving();
244 TileMap::expose(HSQUIRRELVM vm, SQInteger table_idx)
246 if (name.empty()) return;
247 Scripting::TileMap* interface = new Scripting::TileMap(this);
248 expose_object(vm, table_idx, interface, name, true);
252 TileMap::unexpose(HSQUIRRELVM vm, SQInteger table_idx)
254 if (name.empty()) return;
255 Scripting::unexpose_object(vm, table_idx, name);
259 TileMap::set(int newwidth, int newheight, const std::vector<unsigned int>&newt,
260 int new_z_pos, bool newsolid)
262 if(int(newt.size()) != newwidth * newheight)
263 throw std::runtime_error("Wrong tilecount count.");
268 tiles.resize(newt.size());
274 // make sure all tiles are loaded
275 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
280 TileMap::resize(int new_width, int new_height, int fill_id)
282 if(new_width < width) {
283 // remap tiles for new width
284 for(int y = 0; y < height && y < new_height; ++y) {
285 for(int x = 0; x < new_width; ++x) {
286 tiles[y * new_width + x] = tiles[y * width + x];
291 tiles.resize(new_width * new_height, fill_id);
293 if(new_width > width) {
295 for(int y = std::min(height, new_height)-1; y >= 0; --y) {
296 for(int x = new_width-1; x >= 0; --x) {
298 tiles[y * new_width + x] = fill_id;
302 tiles[y * new_width + x] = tiles[y * width + x];
312 TileMap::set_solid(bool solid)
318 TileMap::get_tile_id(int x, int y) const
320 if(x < 0 || x >= width || y < 0 || y >= height) {
321 //log_warning << "tile outside tilemap requested" << std::endl;
325 return tiles[y*width + x];
330 TileMap::get_tile(int x, int y) const
332 uint32_t id = get_tile_id(x, y);
333 return tileset->get(id);
337 TileMap::get_tile_id_at(const Vector& pos) const
339 return get_tile_id(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32);
343 TileMap::get_tile_at(const Vector& pos) const
345 uint32_t id = get_tile_id_at(pos);
346 return tileset->get(id);
350 TileMap::change(int x, int y, uint32_t newtile)
352 assert(x >= 0 && x < width && y >= 0 && y < height);
353 tiles[y*width + x] = newtile;
357 TileMap::change_at(const Vector& pos, uint32_t newtile)
359 change(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32, newtile);
363 TileMap::change_all(uint32_t oldtile, uint32_t newtile)
365 for (size_t x = 0; x < get_width(); x++) {
366 for (size_t y = 0; y < get_height(); y++) {
367 if (get_tile_id(x,y) != oldtile)
376 TileMap::fade(float alpha, float seconds)
379 this->remaining_fade_time = seconds;
384 TileMap::set_alpha(float alpha)
387 this->current_alpha = alpha;
388 this->remaining_fade_time = 0;
389 if (current_alpha < 0.25) set_solid(false);
390 if (current_alpha > 0.75) set_solid(true);
396 return this->current_alpha;
399 IMPLEMENT_FACTORY(TileMap, "tilemap");