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"
41 : solid(false), speed(1), width(0), height(0), z_pos(0), x_offset(0), y_offset(0),
42 drawing_effect(NO_EFFECT), alpha(1.0), current_alpha(1.0), remaining_fade_time(0)
44 tilemanager = tile_manager;
47 TileMap::TileMap(const lisp::Lisp& reader, TileManager* new_tile_manager)
48 : GameObject(reader), solid(false), speed(1), width(-1), height(-1), z_pos(0), x_offset(0), y_offset(0),
49 drawing_effect(NO_EFFECT), alpha(1.0), current_alpha(1.0), remaining_fade_time(0)
51 tilemanager = new_tile_manager;
53 tilemanager = tile_manager;
55 reader.get("z-pos", z_pos);
56 reader.get("solid", solid);
57 reader.get("speed", speed);
59 if(solid && speed != 1) {
60 log_warning << "Speed of solid tilemap is not 1. fixing" << std::endl;
64 reader.get("width", width);
65 reader.get("height", height);
66 if(width < 0 || height < 0)
67 throw std::runtime_error("Invalid/No width/height specified in tilemap.");
69 if(!reader.get_vector("tiles", tiles))
70 throw std::runtime_error("No tiles in tilemap.");
72 if(int(tiles.size()) != width*height) {
73 throw std::runtime_error("wrong number of tiles in tilemap.");
76 // make sure all tiles are loaded
77 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
81 TileMap::TileMap(std::string name, int z_pos, bool solid, size_t width, size_t height)
82 : GameObject(name), solid(solid), speed(1), width(0), height(0), z_pos(z_pos),
83 x_offset(0), y_offset(0), drawing_effect(NO_EFFECT), alpha(1.0), current_alpha(1.0), remaining_fade_time(0)
85 tilemanager = tile_manager;
87 resize(width, height);
95 TileMap::write(lisp::Writer& writer)
97 writer.start_list("tilemap");
99 writer.write_int("z-pos", z_pos);
101 writer.write_bool("solid", solid);
102 writer.write_float("speed", speed);
103 writer.write_int("width", width);
104 writer.write_int("height", height);
105 writer.write_int_vector("tiles", tiles);
107 writer.end_list("tilemap");
111 TileMap::update(float elapsed_time)
113 // handle tilemap fading
114 if (current_alpha != alpha) {
115 remaining_fade_time = std::max(0.0f, remaining_fade_time - elapsed_time);
116 if (remaining_fade_time == 0.0f) {
117 current_alpha = alpha;
119 float amt = (alpha - current_alpha) / (remaining_fade_time / elapsed_time);
120 if (amt > 0) current_alpha = std::min(current_alpha + amt, alpha);
121 if (amt < 0) current_alpha = std::max(current_alpha + amt, alpha);
125 // FIXME: testing only
129 if (name == "risinglava") set_y_offset(get_y_offset() - 1);
134 TileMap::draw(DrawingContext& context)
136 context.push_transform();
138 if(drawing_effect != 0) context.set_drawing_effect(drawing_effect);
139 if(current_alpha != 1.0) context.set_alpha(current_alpha);
141 float trans_x = roundf(context.get_translation().x);
142 float trans_y = roundf(context.get_translation().y);
143 context.set_translation(Vector(trans_x * speed, trans_y * speed));
145 /** if we don't round here, we'll have a 1 pixel gap on screen sometimes.
146 * I have no idea why */
147 float start_x = ((int)((roundf(context.get_translation().x) - x_offset) / 32)) * 32 + x_offset;
148 float start_y = ((int)((roundf(context.get_translation().y) - y_offset) / 32)) * 32 + y_offset;
149 float end_x = std::min(start_x + SCREEN_WIDTH + 32, float(width * 32 + x_offset));
150 float end_y = std::min(start_y + SCREEN_HEIGHT + 32, float(height * 32 + y_offset));
151 int tsx = int((start_x - x_offset) / 32); // tilestartindex x
152 int tsy = int((start_y - y_offset) / 32); // tilestartindex y
156 for(pos.x = start_x, tx = tsx; pos.x < end_x; pos.x += 32, ++tx) {
157 for(pos.y = start_y, ty = tsy; pos.y < end_y; pos.y += 32, ++ty) {
158 if ((tx < 0) || (ty < 0)) continue;
159 const Tile* tile = tilemanager->get(tiles[ty*width + tx]);
161 tile->draw(context, pos, z_pos);
165 context.pop_transform();
169 TileMap::set(int newwidth, int newheight, const std::vector<unsigned int>&newt,
170 int new_z_pos, bool newsolid)
172 if(int(newt.size()) != newwidth * newheight)
173 throw std::runtime_error("Wrong tilecount count.");
178 tiles.resize(newt.size());
184 // make sure all tiles are loaded
185 for(Tiles::iterator i = tiles.begin(); i != tiles.end(); ++i)
186 tilemanager->get(*i);
190 TileMap::resize(int new_width, int new_height)
192 if(new_width < width) {
193 // remap tiles for new width
194 for(int y = 0; y < height && y < new_height; ++y) {
195 for(int x = 0; x < new_width; ++x) {
196 tiles[y * new_width + x] = tiles[y * width + x];
201 tiles.resize(new_width * new_height);
203 if(new_width > width) {
205 for(int y = std::min(height, new_height)-1; y >= 0; --y) {
206 for(int x = new_width-1; x >= 0; --x) {
208 tiles[y * new_width + x] = 0;
212 tiles[y * new_width + x] = tiles[y * width + x];
222 TileMap::get_tile(int x, int y) const
224 if(x < 0 || x >= width || y < 0 || y >= height) {
225 //log_warning << "tile outside tilemap requested" << std::endl;
226 return tilemanager->get(0);
229 return tilemanager->get(tiles[y*width + x]);
233 TileMap::get_tile_at(const Vector& pos) const
235 return get_tile(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32);
239 TileMap::change(int x, int y, uint32_t newtile)
241 assert(x >= 0 && x < width && y >= 0 && y < height);
242 tiles[y*width + x] = newtile;
246 TileMap::change_at(const Vector& pos, uint32_t newtile)
248 change(int(pos.x - x_offset)/32, int(pos.y - y_offset)/32, newtile);
252 TileMap::change_all(uint32_t oldtile, uint32_t newtile)
254 for (size_t x = 0; x < get_width(); x++)
255 for (size_t y = 0; y < get_height(); y++) {
256 if (get_tile(x,y)->getID() == oldtile) change(x,y,newtile);
261 TileMap::fade(float alpha, float seconds)
264 this->remaining_fade_time = seconds;
267 IMPLEMENT_FACTORY(TileMap, "tilemap");