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.
28 #include "tilemap.hpp"
29 #include "video/drawing_context.hpp"
32 #include "resources.hpp"
33 #include "tile_manager.hpp"
34 #include "lisp/lisp.hpp"
35 #include "lisp/writer.hpp"
36 #include "object_factory.hpp"
39 #include "scripting/tilemap.hpp"
40 #include "scripting/squirrel_util.hpp"
43 : solid(false), speed_x(1), speed_y(1), width(0), height(0), z_pos(0), x_offset(0), y_offset(0),
44 drawing_effect(NO_EFFECT), alpha(1.0), current_alpha(1.0), remaining_fade_time(0),
45 draw_target(DrawingContext::NORMAL)
47 tilemanager = tile_manager;
50 TileMap::TileMap(const lisp::Lisp& reader, TileManager* new_tile_manager)
51 : solid(false), speed_x(1), speed_y(1), width(-1), height(-1), z_pos(0),
52 x_offset(0), y_offset(0),
53 drawing_effect(NO_EFFECT), alpha(1.0), current_alpha(1.0),
54 remaining_fade_time(0),
55 draw_target(DrawingContext::NORMAL)
57 tilemanager = new_tile_manager;
59 tilemanager = tile_manager;
61 reader.get("name", name);
62 reader.get("z-pos", z_pos);
63 reader.get("solid", solid);
64 reader.get("speed", speed_x);
65 reader.get("speed-y", speed_y);
67 if(solid && ((speed_x != 1) || (speed_y != 1))) {
68 log_warning << "Speed of solid tilemap is not 1. fixing" << std::endl;
73 const lisp::Lisp* pathLisp = reader.get_lisp("path");
75 path.reset(new Path());
76 path->read(*pathLisp);
77 walker.reset(new PathWalker(path.get(), /*running*/false));
78 Vector v = path->get_base();
83 std::string draw_target_s = "normal";
84 reader.get("draw-target", draw_target_s);
85 if (draw_target_s == "normal") draw_target = DrawingContext::NORMAL;
86 if (draw_target_s == "lightmap") draw_target = DrawingContext::LIGHTMAP;
88 if (reader.get("alpha", alpha)) {
89 current_alpha = alpha;
92 reader.get("width", width);
93 reader.get("height", height);
94 if(width < 0 || height < 0)
95 throw std::runtime_error("Invalid/No width/height specified in tilemap.");
97 if(!reader.get_vector("tiles", tiles))
98 throw std::runtime_error("No tiles in tilemap.");
100 if(int(tiles.size()) != width*height) {
101 throw std::runtime_error("wrong number of tiles in tilemap.");
104 // make sure all tiles are loaded
105 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
106 tilemanager->get(*i);
109 TileMap::TileMap(std::string name, int z_pos, bool solid, size_t width, size_t height)
110 : solid(solid), speed_x(1), speed_y(1), width(0), height(0), z_pos(z_pos),
111 x_offset(0), y_offset(0), drawing_effect(NO_EFFECT), alpha(1.0),
112 current_alpha(1.0), remaining_fade_time(0),
113 draw_target(DrawingContext::NORMAL)
116 tilemanager = tile_manager;
118 resize(width, height);
126 TileMap::write(lisp::Writer& writer)
128 writer.start_list("tilemap");
130 writer.write_int("z-pos", z_pos);
132 writer.write_bool("solid", solid);
133 writer.write_float("speed", speed_x);
134 writer.write_float("speed-y", speed_y);
135 writer.write_int("width", width);
136 writer.write_int("height", height);
137 writer.write_int_vector("tiles", tiles);
139 writer.end_list("tilemap");
143 TileMap::update(float elapsed_time)
145 // handle tilemap fading
146 if (current_alpha != alpha) {
147 remaining_fade_time = std::max(0.0f, remaining_fade_time - elapsed_time);
148 if (remaining_fade_time == 0.0f) {
149 current_alpha = alpha;
151 float amt = (alpha - current_alpha) / (remaining_fade_time / elapsed_time);
152 if (amt > 0) current_alpha = std::min(current_alpha + amt, alpha);
153 if (amt < 0) current_alpha = std::max(current_alpha + amt, alpha);
155 if ((alpha < 0.25) && (current_alpha < 0.25)) set_solid(false);
156 if ((alpha > 0.75) && (current_alpha > 0.75)) set_solid(true);
159 // if we have a path to follow, follow it
161 Vector v = walker->advance(elapsed_time);
168 TileMap::draw(DrawingContext& context)
170 // skip draw if current opacity is set to 0.0
171 if (current_alpha == 0.0) return;
173 context.push_transform();
174 context.push_target();
175 context.set_target(draw_target);
177 if(drawing_effect != 0) context.set_drawing_effect(drawing_effect);
178 if(current_alpha != 1.0) context.set_alpha(current_alpha);
180 float trans_x = roundf(context.get_translation().x);
181 float trans_y = roundf(context.get_translation().y);
182 context.set_translation(Vector(trans_x * speed_x, trans_y * speed_y));
184 /** if we don't round here, we'll have a 1 pixel gap on screen sometimes.
185 * I have no idea why */
186 float start_x = int((roundf(context.get_translation().x) - roundf(x_offset)) / 32) * 32 + roundf(x_offset);
187 float start_y = int((roundf(context.get_translation().y) - roundf(y_offset)) / 32) * 32 + roundf(y_offset);
188 float end_x = std::min(start_x + SCREEN_WIDTH + 32, float(width * 32 + roundf(x_offset)));
189 float end_y = std::min(start_y + SCREEN_HEIGHT + 32, float(height * 32 + roundf(y_offset)));
190 int tsx = int((start_x - roundf(x_offset)) / 32); // tilestartindex x
191 int tsy = int((start_y - roundf(y_offset)) / 32); // tilestartindex y
195 for(pos.x = start_x, tx = tsx; pos.x < end_x; pos.x += 32, ++tx) {
196 for(pos.y = start_y, ty = tsy; pos.y < end_y; pos.y += 32, ++ty) {
197 if ((tx < 0) || (ty < 0)) continue;
198 const Tile* tile = tilemanager->get(tiles[ty*width + tx]);
200 tile->draw(context, pos, z_pos);
204 context.pop_target();
205 context.pop_transform();
209 TileMap::goto_node(int node_no)
211 if (!walker.get()) return;
212 walker->goto_node(node_no);
216 TileMap::start_moving()
218 if (!walker.get()) return;
219 walker->start_moving();
223 TileMap::stop_moving()
225 if (!walker.get()) return;
226 walker->stop_moving();
230 TileMap::expose(HSQUIRRELVM vm, SQInteger table_idx)
232 if (name.empty()) return;
233 Scripting::TileMap* interface = new Scripting::TileMap(this);
234 expose_object(vm, table_idx, interface, name, true);
238 TileMap::unexpose(HSQUIRRELVM vm, SQInteger table_idx)
240 if (name.empty()) return;
241 Scripting::unexpose_object(vm, table_idx, name);
245 TileMap::set(int newwidth, int newheight, const std::vector<unsigned int>&newt,
246 int new_z_pos, bool newsolid)
248 if(int(newt.size()) != newwidth * newheight)
249 throw std::runtime_error("Wrong tilecount count.");
254 tiles.resize(newt.size());
260 // make sure all tiles are loaded
261 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
262 tilemanager->get(*i);
266 TileMap::resize(int new_width, int new_height, int fill_id)
268 if(new_width < width) {
269 // remap tiles for new width
270 for(int y = 0; y < height && y < new_height; ++y) {
271 for(int x = 0; x < new_width; ++x) {
272 tiles[y * new_width + x] = tiles[y * width + x];
277 tiles.resize(new_width * new_height, fill_id);
279 if(new_width > width) {
281 for(int y = std::min(height, new_height)-1; y >= 0; --y) {
282 for(int x = new_width-1; x >= 0; --x) {
284 tiles[y * new_width + x] = fill_id;
288 tiles[y * new_width + x] = tiles[y * width + x];
298 TileMap::set_solid(bool solid)
304 TileMap::get_tile(int x, int y) const
306 if(x < 0 || x >= width || y < 0 || y >= height) {
307 //log_warning << "tile outside tilemap requested" << std::endl;
308 return tilemanager->get(0);
311 return tilemanager->get(tiles[y*width + x]);
315 TileMap::get_tile_at(const Vector& pos) const
317 return get_tile(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32);
321 TileMap::change(int x, int y, uint32_t newtile)
323 assert(x >= 0 && x < width && y >= 0 && y < height);
324 tiles[y*width + x] = newtile;
328 TileMap::change_at(const Vector& pos, uint32_t newtile)
330 change(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32, newtile);
334 TileMap::change_all(uint32_t oldtile, uint32_t newtile)
336 for (size_t x = 0; x < get_width(); x++)
337 for (size_t y = 0; y < get_height(); y++) {
338 if (get_tile(x,y)->getID() == oldtile) change(x,y,newtile);
343 TileMap::fade(float alpha, float seconds)
346 this->remaining_fade_time = seconds;
351 TileMap::set_alpha(float alpha)
354 this->current_alpha = alpha;
355 this->remaining_fade_time = 0;
356 if (current_alpha < 0.25) set_solid(false);
357 if (current_alpha > 0.75) set_solid(true);
363 return this->current_alpha;
366 IMPLEMENT_FACTORY(TileMap, "tilemap");