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_vector("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.");
105 // make sure all tiles used on the tilemap are loaded
106 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
110 TileMap::TileMap(const TileSet *new_tileset, std::string name, int z_pos,
111 bool solid, size_t width, size_t height)
112 : tileset(new_tileset), solid(solid), speed_x(1), speed_y(1), width(0),
113 height(0), z_pos(z_pos), x_offset(0), y_offset(0), movement(Vector(0,0)),
114 drawing_effect(NO_EFFECT), alpha(1.0), current_alpha(1.0),
115 remaining_fade_time(0), draw_target(DrawingContext::NORMAL)
119 resize(width, height);
127 TileMap::write(lisp::Writer& writer)
129 writer.start_list("tilemap");
131 writer.write_int("z-pos", z_pos);
133 writer.write_bool("solid", solid);
134 writer.write_float("speed", speed_x);
135 writer.write_float("speed-y", speed_y);
136 writer.write_int("width", width);
137 writer.write_int("height", height);
138 writer.write_int_vector("tiles", tiles);
140 writer.end_list("tilemap");
144 TileMap::update(float elapsed_time)
146 // handle tilemap fading
147 if (current_alpha != alpha) {
148 remaining_fade_time = std::max(0.0f, remaining_fade_time - elapsed_time);
149 if (remaining_fade_time == 0.0f) {
150 current_alpha = alpha;
152 float amt = (alpha - current_alpha) / (remaining_fade_time / elapsed_time);
153 if (amt > 0) current_alpha = std::min(current_alpha + amt, alpha);
154 if (amt < 0) current_alpha = std::max(current_alpha + amt, alpha);
156 if ((alpha < 0.25) && (current_alpha < 0.25)) set_solid(false);
157 if ((alpha > 0.75) && (current_alpha > 0.75)) set_solid(true);
160 movement = Vector(0,0);
161 // if we have a path to follow, follow it
163 Vector v = walker->advance(elapsed_time);
164 movement = Vector(v.x-get_x_offset(), std::max(0.0f,v.y-get_y_offset()));
171 TileMap::draw(DrawingContext& context)
173 // skip draw if current opacity is set to 0.0
174 if (current_alpha == 0.0) return;
176 context.push_transform();
177 context.push_target();
178 context.set_target(draw_target);
180 if(drawing_effect != 0) context.set_drawing_effect(drawing_effect);
181 if(current_alpha != 1.0) context.set_alpha(current_alpha);
183 float trans_x = roundf(context.get_translation().x);
184 float trans_y = roundf(context.get_translation().y);
185 context.set_translation(Vector(int(trans_x * speed_x),
186 int(trans_y * speed_y)));
188 /** if we don't round here, we'll have a 1 pixel gap on screen sometimes.
189 * I have no idea why */
190 float start_x = int((roundf(context.get_translation().x) - roundf(x_offset)) / 32) * 32 + roundf(x_offset);
191 float start_y = int((roundf(context.get_translation().y) - roundf(y_offset)) / 32) * 32 + roundf(y_offset);
192 float end_x = std::min(start_x + SCREEN_WIDTH + 32, float(width * 32 + roundf(x_offset)));
193 float end_y = std::min(start_y + SCREEN_HEIGHT + 32, float(height * 32 + roundf(y_offset)));
194 int tsx = int((start_x - roundf(x_offset)) / 32); // tilestartindex x
195 int tsy = int((start_y - roundf(y_offset)) / 32); // tilestartindex y
199 for(pos.x = start_x, tx = tsx; pos.x < end_x; pos.x += 32, ++tx) {
200 for(pos.y = start_y, ty = tsy; pos.y < end_y; pos.y += 32, ++ty) {
201 if ((tx < 0) || (ty < 0)) continue;
202 const Tile* tile = tileset->get(tiles[ty*width + tx]);
204 tile->draw(context, pos, z_pos);
208 context.pop_target();
209 context.pop_transform();
213 TileMap::goto_node(int node_no)
215 if (!walker.get()) return;
216 walker->goto_node(node_no);
220 TileMap::start_moving()
222 if (!walker.get()) return;
223 walker->start_moving();
227 TileMap::stop_moving()
229 if (!walker.get()) return;
230 walker->stop_moving();
234 TileMap::expose(HSQUIRRELVM vm, SQInteger table_idx)
236 if (name.empty()) return;
237 Scripting::TileMap* interface = new Scripting::TileMap(this);
238 expose_object(vm, table_idx, interface, name, true);
242 TileMap::unexpose(HSQUIRRELVM vm, SQInteger table_idx)
244 if (name.empty()) return;
245 Scripting::unexpose_object(vm, table_idx, name);
249 TileMap::set(int newwidth, int newheight, const std::vector<unsigned int>&newt,
250 int new_z_pos, bool newsolid)
252 if(int(newt.size()) != newwidth * newheight)
253 throw std::runtime_error("Wrong tilecount count.");
258 tiles.resize(newt.size());
264 // make sure all tiles are loaded
265 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
270 TileMap::resize(int new_width, int new_height, int fill_id)
272 if(new_width < width) {
273 // remap tiles for new width
274 for(int y = 0; y < height && y < new_height; ++y) {
275 for(int x = 0; x < new_width; ++x) {
276 tiles[y * new_width + x] = tiles[y * width + x];
281 tiles.resize(new_width * new_height, fill_id);
283 if(new_width > width) {
285 for(int y = std::min(height, new_height)-1; y >= 0; --y) {
286 for(int x = new_width-1; x >= 0; --x) {
288 tiles[y * new_width + x] = fill_id;
292 tiles[y * new_width + x] = tiles[y * width + x];
302 TileMap::set_solid(bool solid)
308 TileMap::get_tile_id(int x, int y) const
310 if(x < 0 || x >= width || y < 0 || y >= height) {
311 //log_warning << "tile outside tilemap requested" << std::endl;
315 return tiles[y*width + x];
320 TileMap::get_tile(int x, int y) const
322 uint32_t id = get_tile_id(x, y);
323 return tileset->get(id);
327 TileMap::get_tile_id_at(const Vector& pos) const
329 return get_tile_id(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32);
333 TileMap::get_tile_at(const Vector& pos) const
335 uint32_t id = get_tile_id_at(pos);
336 return tileset->get(id);
340 TileMap::change(int x, int y, uint32_t newtile)
342 assert(x >= 0 && x < width && y >= 0 && y < height);
343 tiles[y*width + x] = newtile;
347 TileMap::change_at(const Vector& pos, uint32_t newtile)
349 change(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32, newtile);
353 TileMap::change_all(uint32_t oldtile, uint32_t newtile)
355 for (size_t x = 0; x < get_width(); x++) {
356 for (size_t y = 0; y < get_height(); y++) {
357 if (get_tile_id(x,y) != oldtile)
366 TileMap::fade(float alpha, float seconds)
369 this->remaining_fade_time = seconds;
374 TileMap::set_alpha(float alpha)
377 this->current_alpha = alpha;
378 this->remaining_fade_time = 0;
379 if (current_alpha < 0.25) set_solid(false);
380 if (current_alpha > 0.75) set_solid(true);
386 return this->current_alpha;
389 IMPLEMENT_FACTORY(TileMap, "tilemap");