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(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(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);
66 if(solid && speed != 1) {
67 log_warning << "Speed of solid tilemap is not 1. fixing" << std::endl;
71 const lisp::Lisp* pathLisp = reader.get_lisp("path");
73 path.reset(new Path());
74 path->read(*pathLisp);
75 walker.reset(new PathWalker(path.get(), /*running*/false));
76 Vector v = path->get_base();
81 std::string draw_target_s = "normal";
82 reader.get("draw-target", draw_target_s);
83 if (draw_target_s == "normal") draw_target = DrawingContext::NORMAL;
84 if (draw_target_s == "lightmap") draw_target = DrawingContext::LIGHTMAP;
86 reader.get("width", width);
87 reader.get("height", height);
88 if(width < 0 || height < 0)
89 throw std::runtime_error("Invalid/No width/height specified in tilemap.");
91 if(!reader.get_vector("tiles", tiles))
92 throw std::runtime_error("No tiles in tilemap.");
94 if(int(tiles.size()) != width*height) {
95 throw std::runtime_error("wrong number of tiles in tilemap.");
98 // make sure all tiles are loaded
99 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
100 tilemanager->get(*i);
103 TileMap::TileMap(std::string name, int z_pos, bool solid, size_t width, size_t height)
104 : solid(solid), speed(1), width(0), height(0), z_pos(z_pos),
105 x_offset(0), y_offset(0), drawing_effect(NO_EFFECT), alpha(1.0),
106 current_alpha(1.0), remaining_fade_time(0),
107 draw_target(DrawingContext::NORMAL)
110 tilemanager = tile_manager;
112 resize(width, height);
120 TileMap::write(lisp::Writer& writer)
122 writer.start_list("tilemap");
124 writer.write_int("z-pos", z_pos);
126 writer.write_bool("solid", solid);
127 writer.write_float("speed", speed);
128 writer.write_int("width", width);
129 writer.write_int("height", height);
130 writer.write_int_vector("tiles", tiles);
132 writer.end_list("tilemap");
136 TileMap::update(float elapsed_time)
138 // handle tilemap fading
139 if (current_alpha != alpha) {
140 remaining_fade_time = std::max(0.0f, remaining_fade_time - elapsed_time);
141 if (remaining_fade_time == 0.0f) {
142 current_alpha = alpha;
144 float amt = (alpha - current_alpha) / (remaining_fade_time / elapsed_time);
145 if (amt > 0) current_alpha = std::min(current_alpha + amt, alpha);
146 if (amt < 0) current_alpha = std::max(current_alpha + amt, alpha);
148 if (current_alpha < 0.25) set_solid(false);
151 // if we have a path to follow, follow it
153 Vector v = walker->advance(elapsed_time);
160 TileMap::draw(DrawingContext& context)
162 context.push_transform();
163 context.push_target();
164 context.set_target(draw_target);
166 if(drawing_effect != 0) context.set_drawing_effect(drawing_effect);
167 if(current_alpha != 1.0) context.set_alpha(current_alpha);
169 float trans_x = roundf(context.get_translation().x);
170 float trans_y = roundf(context.get_translation().y);
171 context.set_translation(Vector(trans_x * speed, trans_y * speed));
173 /** if we don't round here, we'll have a 1 pixel gap on screen sometimes.
174 * I have no idea why */
175 float start_x = int((roundf(context.get_translation().x) - roundf(x_offset)) / 32) * 32 + roundf(x_offset);
176 float start_y = int((roundf(context.get_translation().y) - roundf(y_offset)) / 32) * 32 + roundf(y_offset);
177 float end_x = std::min(start_x + SCREEN_WIDTH + 32, float(width * 32 + roundf(x_offset)));
178 float end_y = std::min(start_y + SCREEN_HEIGHT + 32, float(height * 32 + roundf(y_offset)));
179 int tsx = int((start_x - roundf(x_offset)) / 32); // tilestartindex x
180 int tsy = int((start_y - roundf(y_offset)) / 32); // tilestartindex y
184 for(pos.x = start_x, tx = tsx; pos.x < end_x; pos.x += 32, ++tx) {
185 for(pos.y = start_y, ty = tsy; pos.y < end_y; pos.y += 32, ++ty) {
186 if ((tx < 0) || (ty < 0)) continue;
187 const Tile* tile = tilemanager->get(tiles[ty*width + tx]);
189 tile->draw(context, pos, z_pos);
193 context.pop_target();
194 context.pop_transform();
198 TileMap::goto_node(int node_no)
200 if (!walker.get()) return;
201 walker->goto_node(node_no);
205 TileMap::start_moving()
207 if (!walker.get()) return;
208 walker->start_moving();
212 TileMap::stop_moving()
214 if (!walker.get()) return;
215 walker->stop_moving();
219 TileMap::expose(HSQUIRRELVM vm, SQInteger table_idx)
221 if (name.empty()) return;
222 if (!walker.get()) return;
223 Scripting::TileMap* interface = new Scripting::TileMap(this);
224 expose_object(vm, table_idx, interface, name, true);
228 TileMap::unexpose(HSQUIRRELVM vm, SQInteger table_idx)
230 if (name.empty()) return;
231 if (!walker.get()) return;
232 Scripting::unexpose_object(vm, table_idx, name);
236 TileMap::set(int newwidth, int newheight, const std::vector<unsigned int>&newt,
237 int new_z_pos, bool newsolid)
239 if(int(newt.size()) != newwidth * newheight)
240 throw std::runtime_error("Wrong tilecount count.");
245 tiles.resize(newt.size());
251 // make sure all tiles are loaded
252 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
253 tilemanager->get(*i);
257 TileMap::resize(int new_width, int new_height)
259 if(new_width < width) {
260 // remap tiles for new width
261 for(int y = 0; y < height && y < new_height; ++y) {
262 for(int x = 0; x < new_width; ++x) {
263 tiles[y * new_width + x] = tiles[y * width + x];
268 tiles.resize(new_width * new_height);
270 if(new_width > width) {
272 for(int y = std::min(height, new_height)-1; y >= 0; --y) {
273 for(int x = new_width-1; x >= 0; --x) {
275 tiles[y * new_width + x] = 0;
279 tiles[y * new_width + x] = tiles[y * width + x];
289 TileMap::set_solid(bool solid)
295 TileMap::get_tile(int x, int y) const
297 if(x < 0 || x >= width || y < 0 || y >= height) {
298 //log_warning << "tile outside tilemap requested" << std::endl;
299 return tilemanager->get(0);
302 return tilemanager->get(tiles[y*width + x]);
306 TileMap::get_tile_at(const Vector& pos) const
308 return get_tile(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32);
312 TileMap::change(int x, int y, uint32_t newtile)
314 assert(x >= 0 && x < width && y >= 0 && y < height);
315 tiles[y*width + x] = newtile;
319 TileMap::change_at(const Vector& pos, uint32_t newtile)
321 change(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32, newtile);
325 TileMap::change_all(uint32_t oldtile, uint32_t newtile)
327 for (size_t x = 0; x < get_width(); x++)
328 for (size_t y = 0; y < get_height(); y++) {
329 if (get_tile(x,y)->getID() == oldtile) change(x,y,newtile);
334 TileMap::fade(float alpha, float seconds)
337 this->remaining_fade_time = seconds;
340 IMPLEMENT_FACTORY(TileMap, "tilemap");