├── .gitignore
├── Cargo.lock
├── Cargo.toml
├── LICENSE
├── README.md
├── bin
    └── assets
    │   ├── comment1.png
    │   ├── comment2.png
    │   ├── digits.png
    │   └── logo.png
├── rust-2048.png
└── src
    ├── app.rs
    ├── board.rs
    ├── main.rs
    ├── number_renderer.rs
    ├── settings.rs
    └── tile.rs


/.gitignore:
--------------------------------------------------------------------------------
 1 | .DS_Store
 2 | *~
 3 | *#
 4 | *.o
 5 | *.so
 6 | *.swp
 7 | *.dylib
 8 | *.dSYM
 9 | *.dll
10 | *.rlib
11 | *.dummy
12 | *.exe
13 | *-test
14 | /bin/main
15 | /bin/test-internal
16 | /bin/test-external
17 | /doc/
18 | /target/
19 | /build/
20 | /.rust/
21 | rusti.sh
22 | 


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--------------------------------------------------------------------------------
/Cargo.toml:
--------------------------------------------------------------------------------
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 4 | version = "0.0.0"
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17 | piston2d-opengl_graphics = "0.82.0"
18 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | The MIT License (MIT)
 2 | 
 3 | Copyright (c) 2014 Coeuvre Wong
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.


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/README.md:
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 1 | rust-2048
 2 | =========
 3 | 
 4 | A 2048 clone with Piston game engine.
 5 | 
 6 | How to play
 7 | -----------
 8 | Use arrow key to move tiles.
 9 | 
10 | ![alt tag](./rust-2048.png)
11 | 
12 | ## Building Instructions
13 | 
14 | To build this repository, you need [Cargo](https://github.com/rust-lang/cargo).
15 | 
16 | You also need the _Freetype 6_ and _SDL2_ libs.
17 | Look at [Piston-Tutorials - Installing Dependencies](https://github.com/PistonDevelopers/Piston-Tutorials/tree/master/getting-started#installing-dependencies) and [Rust-SDL2 - Requirements](https://github.com/AngryLawyer/rust-sdl2#sdl20--development-libraries) how to install them.
18 | 
19 | 
20 | Clone this repository
21 | ```
22 | git clone https://github.com/Coeuvre/rust-2048.git
23 | ```
24 | 
25 | Use Cargo to build
26 | ```
27 | cargo build
28 | ```
29 | 
30 | Play!
31 | ```
32 | cargo run
33 | ```
34 | 


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/src/app.rs:
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  1 | use std::path::{ Path, PathBuf };
  2 | 
  3 | use piston_window::*;
  4 | use opengl_graphics::GlGraphics;
  5 | use opengl_graphics::Texture as GlTexture;
  6 | use board::Board;
  7 | use number_renderer::NumberRenderer;
  8 | use settings::Settings;
  9 | 
 10 | pub struct App<'a> {
 11 |     board: Board<'a>,
 12 |     number_renderer: Option<NumberRenderer>,
 13 |     settings: &'a Settings,
 14 | 
 15 |     logo: Option<GlTexture>,
 16 |     comment1: Option<GlTexture>,
 17 |     comment2: Option<GlTexture>,
 18 |     window_background_color: [f32; 4],
 19 | }
 20 | 
 21 | fn rgb2rgba(c: [f32; 3]) -> [f32; 4] { [c[0], c[1], c[2], 1.0] }
 22 | 
 23 | impl<'a> App<'a> {
 24 |     pub fn new(settings: &'a Settings) -> App<'a> {
 25 |         App {
 26 |             board: Board::new(settings),
 27 |             number_renderer: None,
 28 |             settings: settings,
 29 | 
 30 |             logo: None,
 31 |             comment1: None,
 32 |             comment2: None,
 33 |             window_background_color: [1.0, 1.0, 1.0, 1.0],
 34 |         }
 35 |     }
 36 | 
 37 |     fn render_ui(&self, c: &Context, gl: &mut GlGraphics) {		
 38 |         Image::new_color(rgb2rgba(self.settings.text_dark_color))
 39 |             .draw(self.logo.iter().next().unwrap(),
 40 |                   &DrawState::default(),
 41 |                   c.trans(self.settings.board_padding,self.settings.board_padding).transform,
 42 |                   gl);
 43 | 
 44 |         Rectangle::new(rgb2rgba(self.settings.label_color))
 45 |             .draw(self.settings.best_rect,
 46 |                   &DrawState::default(),
 47 |                   c.transform,
 48 |                   gl);
 49 | 
 50 |         let comment1_offset_y = self.settings.comment1_offset_y;
 51 |         let comment1 = self.comment1.as_ref().unwrap();
 52 |         App::render_comment(self.settings, comment1, comment1_offset_y, c, gl);
 53 |         let comment2_offset_y = self.settings.comment2_offset_y;
 54 |         let comment2 = self.comment2.as_ref().unwrap();
 55 |         App::render_comment(self.settings, comment2, comment2_offset_y, c, gl);
 56 |     }
 57 | 
 58 |     fn render_comment(settings: &Settings, comment: &GlTexture, y: f64, c: &Context, gl: &mut GlGraphics) {
 59 |         let (width, height) = comment.get_size();
 60 |         let w = settings.window_size[0] as f64 - 2.0 * settings.board_padding;
 61 |         let h = height as f64 * w / width as f64;
 62 | 
 63 |         Image::new_color(rgb2rgba(settings.text_dark_color))
 64 |             .rect([settings.board_padding, y, w, h])
 65 |             .draw( comment,
 66 |                    &DrawState::default(),
 67 |                    c.transform,
 68 |                    gl);
 69 |     }
 70 | 
 71 |     pub fn load(&mut self) {
 72 |         let mut asset_root = PathBuf::new();
 73 |         asset_root.push(Path::new(&self.settings.asset_folder));
 74 | 
 75 |         let mut logo_path = asset_root.clone();
 76 |         logo_path.push(Path::new("logo.png"));
 77 |         let mut comment1_path = asset_root.clone();
 78 |         comment1_path.push(Path::new("comment1.png"));
 79 |         let mut comment2_path = asset_root.clone();
 80 |         comment2_path.push(Path::new("comment2.png"));
 81 | 
 82 |         self.number_renderer = Some(NumberRenderer::new());
 83 |         let texture_settings = TextureSettings::new();
 84 |         self.logo = Some(GlTexture::from_path(&logo_path, &texture_settings).unwrap());
 85 |         self.comment1 = Some(GlTexture::from_path(&comment1_path, &texture_settings).unwrap());
 86 |         self.comment2 = Some(GlTexture::from_path(&comment2_path, &texture_settings).unwrap());
 87 |     }
 88 | 
 89 |     pub fn render(&mut self, args: &RenderArgs, gl: &mut GlGraphics) {
 90 |         let area = args.window_size;
 91 |         let ref c = Context::new_abs(area[0], area[1]);
 92 | 
 93 |         let w_bg_col = self.window_background_color;
 94 |         let ref nr = self.number_renderer;
 95 | 
 96 |         gl.draw(args.viewport(), |_, gl| {
 97 |             clear(w_bg_col, gl);
 98 |             self.render_ui(c, gl);
 99 |             self.board.render(nr.iter().next().unwrap(), c, gl);
100 |         });
101 | 
102 |     }
103 | 
104 |     pub fn update(&mut self, args: &UpdateArgs) {
105 |         self.board.update(args.dt);
106 |     }
107 | 
108 |     pub fn key_press(&mut self, args: &Button) {
109 | 		use piston_window::Button::Keyboard;
110 | 		
111 |         if *args == Keyboard(Key::Left) {
112 |             self.board.merge_from_right_to_left();
113 |         }
114 | 
115 |         if *args == Keyboard(Key::Right) {
116 |             self.board.merge_from_left_to_right();
117 |         }
118 | 
119 |         if *args == Keyboard(Key::Up) {
120 |             self.board.merge_from_bottom_to_top();
121 |         }
122 | 
123 |         if *args == Keyboard(Key::Down) {
124 |             self.board.merge_from_top_to_bottom();
125 |         }
126 | 
127 |         if *args == Keyboard(Key::Space) {
128 |             self.board = Board::new(self.settings);
129 |         }
130 |     }
131 | }
132 | 


--------------------------------------------------------------------------------
/src/board.rs:
--------------------------------------------------------------------------------
  1 | use std::collections::HashSet;
  2 | use rand::random;
  3 | use piston_window::*;
  4 | use opengl_graphics::GlGraphics;
  5 | use number_renderer::NumberRenderer;
  6 | use settings::Settings;
  7 | use tile::{ Tile, TileState };
  8 | 
  9 | fn rgb2rgba(c: [f32; 3]) -> [f32; 4] { [c[0], c[1], c[2], 1.0] }
 10 | 
 11 | pub struct Board<'a> {
 12 |     tiles: Vec<Tile<'a>>,
 13 |     score: i32,
 14 |     settings: &'a Settings,
 15 | }
 16 | 
 17 | impl<'a> Board<'a> {
 18 |     pub fn new(settings: &'a Settings) -> Board<'a> {
 19 |         let mut board = Board {
 20 |             tiles: Vec::<Tile>::new(),
 21 |             score: 0,
 22 |             settings: settings,
 23 |         };
 24 |         board.generate_tile();
 25 |         board.generate_tile();
 26 |         board
 27 |     }
 28 | 
 29 |     pub fn generate_tile(&mut self) {
 30 |         if self.tiles.len() == (self.settings.tile_width * self.settings.tile_height) as usize {
 31 |             return;
 32 |         }
 33 | 
 34 |         loop {
 35 |             let x = (random::<u32>() % self.settings.tile_width as u32) as i32;
 36 |             let y = (random::<u32>() % self.settings.tile_height as u32) as i32;
 37 | 
 38 |             if self.get_tile(x, y).is_none() {
 39 |                 let score = if random::<u32>() % 10 == 0 {
 40 |                     4
 41 |                 } else {
 42 |                     2
 43 |                 };
 44 |                 self.tiles.push(Tile::new(self.settings, score, x, y));
 45 |                 break;
 46 |             }
 47 |         }
 48 |     }
 49 | 
 50 |     pub fn update(&mut self, dt: f64) {
 51 |         for tile in self.tiles.iter_mut() {
 52 |             tile.update(dt);
 53 |         }
 54 | 
 55 |         if self.is_locking() {
 56 |             return;
 57 |         }
 58 | 
 59 |         let mut score_to_added = 0;
 60 |         let mut tiles_need_removed = HashSet::<usize>::new();
 61 |         let mut tiles_need_added = Vec::<Tile>::new();
 62 | 
 63 |         for i in 0..self.tiles.len() {
 64 |             let tile1 = &self.tiles[i];
 65 | 
 66 |             if tile1.status != TileState::TileStatic {
 67 |                 continue;
 68 |             }
 69 | 
 70 |             for j in i+1..self.tiles.len() {
 71 |                 let tile2 = &self.tiles[j];
 72 | 
 73 |                 if tile2.status != TileState::TileStatic
 74 |                   || tile1.tile_x != tile2.tile_x
 75 |                   || tile1.tile_y != tile2.tile_y {
 76 |                     continue;
 77 |                 }
 78 | 
 79 |                 tiles_need_removed.insert(i);
 80 |                 tiles_need_removed.insert(j);
 81 |                 tiles_need_added.push(Tile::new_combined(self.settings, tile1.score + tile2.score, tile1.tile_x, tile1.tile_y));
 82 |                 score_to_added += tile1.score + tile2.score;
 83 |                 break;
 84 |             }
 85 |         }
 86 | 
 87 |         if tiles_need_removed.len() > 0 {
 88 |             let mut tiles = Vec::<Tile>::new();
 89 | 
 90 |             for i in 0..self.tiles.len() {
 91 |                 if !tiles_need_removed.contains(&i) {
 92 |                     tiles.push(self.tiles[i].clone());
 93 |                 }
 94 |             }
 95 | 
 96 |             // better but unstable:          tiles.append(&mut tiles_need_added);
 97 |             while let Some(tile_to_add) = tiles_need_added.pop() {
 98 |                 tiles.push(tile_to_add);
 99 |             }
100 | 
101 |             self.tiles = tiles;
102 |             self.add_score(score_to_added);
103 |         }
104 |     }
105 | 
106 |     pub fn render(&self, number_renderer: &NumberRenderer, c: &Context, gl: &mut GlGraphics) {
107 |         number_renderer.render(
108 |             self.score as u32,
109 |             self.settings.best_rect[0] + self.settings.best_rect[2] / 2.0,
110 |             self.settings.best_rect[1] + self.settings.best_rect[3] / 2.0,
111 |             self.settings.best_rect[2],
112 |             self.settings.text_light_color, c, gl);
113 | 
114 |         self.render_board(c, gl);
115 |         self.render_tiles(number_renderer, c, gl);
116 |     }
117 | 
118 |     pub fn merge_from_bottom_to_top(&mut self) {
119 |         let height = self.settings.tile_height;
120 |         self.merge_col(0, height, 1);
121 |     }
122 | 
123 |     pub fn merge_from_top_to_bottom(&mut self) {
124 |         let height = self.settings.tile_height;
125 |         self.merge_col(height - 1, -1, -1);
126 |     }
127 | 
128 |     fn merge_col(&mut self, y_start: i32, y_end: i32, y_step: i32) {
129 |         if self.is_locking() {
130 |             println!("return");
131 |             return;
132 |         }
133 | 
134 |         let mut need_generate = false;
135 |         let mut steps: Vec<i32> = Vec::with_capacity(self.settings.tile_height as usize);
136 | 
137 |         let mut next_step = y_start;
138 | 
139 |         if y_step < 0 {
140 |             while next_step > y_end {
141 |                 steps.push(next_step); next_step += y_step
142 |             }
143 |         } else {
144 |             while next_step < y_end {
145 |                 steps.push(next_step); next_step += y_step
146 |             }
147 |         }
148 | 
149 |         loop {
150 |             // move all tiles to right place
151 |             for col in 0 .. self.settings.tile_width {
152 |                 // TODO: replace steps by (y_start .. y_end).step_by(y_step) if step_by becomes stable
153 |                 for row  in steps.to_vec() {
154 |                     match self.get_mut_tile(col, row) {
155 |                         None => {
156 |                             match self.get_mut_next_tile(col, row, 0, y_step) {
157 |                                 Some(ref mut tile) => {
158 |                                     println!("move ({}, {}) to ({}, {})",
159 |                                         tile.tile_x, tile.tile_y, col, row);
160 |                                     need_generate = true;
161 |                                     tile.start_moving(col, row);
162 |                                 },
163 |                                 _ => {},
164 |                             }
165 |                         },
166 |                         _ => {},
167 |                     }
168 |                 }
169 |             }
170 | 
171 |             let mut did_merged = false;
172 |             for col in 0..self.settings.tile_width {
173 |                 let mut found = false;
174 |                 let mut sx = 0;
175 |                 let mut sy = 0;
176 |                 let mut dx = 0;
177 |                 let mut dy = 0;
178 |                 for row  in steps.to_vec() {
179 |                     match self.get_tile(col, row) {
180 |                         Some(ref d_tile) => {
181 |                             match self.get_next_tile(col, row, 0, y_step) {
182 |                                 Some(ref s_tile)
183 |                                 if d_tile.score == s_tile.score
184 |                                 && self.get_tile_count(d_tile.tile_x, d_tile.tile_y) == 1 => {
185 |                                     found = true;
186 |                                     dx = d_tile.tile_x;
187 |                                     dy = d_tile.tile_y;
188 |                                     sx = s_tile.tile_x;
189 |                                     sy = s_tile.tile_y;
190 |                                     break;
191 |                                 },
192 |                                 _ => {},
193 |                             }
194 |                         },
195 |                         None => {
196 |                             break;
197 |                         }
198 |                     }
199 |                 }
200 | 
201 |                 if found {
202 |                     need_generate = true;
203 |                     did_merged = true;
204 |                     let tile = self.get_mut_tile(sx, sy).unwrap();
205 |                     tile.start_moving(dx, dy);
206 |                     println!("merge ({}, {}) to ({}, {})", sx, sy, dx, dy);
207 |                 }
208 |             }
209 | 
210 |             if !did_merged {
211 |                 break;
212 |             }
213 |         }
214 | 
215 |         if need_generate {
216 |             self.generate_tile();
217 |         }
218 |     }
219 | 
220 |     pub fn merge_from_left_to_right(&mut self) {
221 |         let width = self.settings.tile_width;
222 |         self.merge_row(width - 1, -1, -1);
223 |     }
224 | 
225 |     pub fn merge_from_right_to_left(&mut self) {
226 |         let width = self.settings.tile_width;
227 |         self.merge_row(0, width, 1);
228 |     }
229 | 
230 |     fn merge_row(&mut self, x_start: i32, x_end: i32, x_step: i32) {
231 |         if self.is_locking() {
232 |             return;
233 |         }
234 | 
235 |         let mut need_generate = false;
236 |         let mut steps: Vec<i32> = Vec::with_capacity(self.settings.tile_width as usize);
237 |         let mut next_step = x_start;
238 | 
239 |         if x_step < 0 {
240 |             while next_step > x_end {
241 |                 steps.push(next_step); next_step += x_step
242 |             }
243 |         } else {
244 |             while next_step < x_end {
245 |                 steps.push(next_step); next_step += x_step
246 |             }
247 |         }
248 | 
249 |         loop {
250 |             // move all tiles to right place
251 |             for row in 0..self.settings.tile_height {
252 |                 for col  in steps.to_vec() {
253 |                     match self.get_mut_tile(col, row) {
254 |                         None => {
255 |                             match self.get_mut_next_tile(col, row, x_step, 0) {
256 |                                 Some(ref mut tile) => {
257 |                                     println!("move ({}, {}) to ({}, {})", tile.tile_x, tile.tile_y, col, row);
258 |                                     need_generate = true;
259 |                                     tile.start_moving(col, row);
260 |                                 },
261 |                                 _ => {},
262 |                             }
263 |                         },
264 |                         _ => {},
265 |                     }
266 |                 }
267 |             }
268 | 
269 |             // merge
270 |             let mut did_merged = false;
271 |             for row in 0..self.settings.tile_height {
272 |                 let mut found = false;
273 |                 let mut sx = 0;
274 |                 let mut sy = 0;
275 |                 let mut dx = 0;
276 |                 let mut dy = 0;
277 |                 for col in steps.to_vec() {
278 |                     match self.get_tile(col, row) {
279 |                         Some(ref d_tile) => {
280 |                             match self.get_next_tile(col, row, x_step, 0) {
281 |                                 Some(ref s_tile)
282 |                                 if d_tile.score == s_tile.score
283 |                                 && self.get_tile_count(d_tile.tile_x, d_tile.tile_y) == 1 => {
284 |                                     found = true;
285 |                                     dx = d_tile.tile_x;
286 |                                     dy = d_tile.tile_y;
287 |                                     sx = s_tile.tile_x;
288 |                                     sy = s_tile.tile_y;
289 |                                     break;
290 |                                 },
291 |                                 _ => {},
292 |                             }
293 |                         },
294 |                         None => {
295 |                             break;
296 |                         }
297 |                     }
298 |                 }
299 | 
300 |                 if found {
301 |                     need_generate = true;
302 |                     did_merged = true;
303 |                     let tile = self.get_mut_tile(sx, sy).unwrap();
304 |                     tile.start_moving(dx, dy);
305 |                     println!("merge ({}, {}) to ({}, {})", sx, sy, dx, dy);
306 |                 }
307 |             }
308 | 
309 |             if !did_merged {
310 |                 break;
311 |             }
312 |         }
313 | 
314 |         if need_generate {
315 |             self.generate_tile();
316 |         }
317 |     }
318 | 
319 |     fn is_locking(&self) -> bool {
320 |         for tile in self.tiles.iter() {
321 |             if tile.status != TileState::TileStatic {
322 |                 return true;
323 |             }
324 |         }
325 |         false
326 |     }
327 | 
328 |     /// Returns next tile right besides (x, y)
329 |     fn get_next_tile<'b>(&'b self, x: i32, y: i32, step_x: i32, step_y: i32) -> Option<&'b Tile<'a>> {
330 |         let mut x = x + step_x;
331 |         let mut y = y + step_y;
332 |         while x >= 0 && x < self.settings.tile_width
333 |         && y >= 0 && y < self.settings.tile_height {
334 |             let tile = self.get_tile(x, y);
335 |             if tile.is_some() {
336 |                 return tile;
337 |             }
338 |             x += step_x;
339 |             y += step_y;
340 |         }
341 |         None
342 |     }
343 | 
344 |     fn get_mut_next_tile<'b>(&'b mut self, x: i32, y: i32, step_x: i32, step_y: i32) -> Option<&'b mut Tile<'a>> {
345 |         let mut x = x + step_x;
346 |         let mut y = y + step_y;
347 |         let mut found = false;
348 |         while x >= 0 && x < self.settings.tile_width
349 |         && y >= 0 && y < self.settings.tile_height {
350 |             let tile = self.get_tile(x, y);
351 | 
352 |             if tile.is_some() {
353 |                 found = true;
354 |                 break;
355 |             }
356 |             x += step_x;
357 |             y += step_y;
358 |         }
359 | 
360 |         if found {
361 |             self.get_mut_tile(x, y)
362 |         } else {
363 |             None
364 |         }
365 |     }
366 | 
367 |     fn get_tile<'b>(&'b self, x: i32, y: i32) -> Option<&'b Tile<'a>> {
368 |         for tile in self.tiles.iter() {
369 |             if tile.tile_x == x && tile.tile_y == y {
370 |                 return Some(tile);
371 |             }
372 |         }
373 | 
374 |         None
375 |     }
376 | 
377 |     fn get_mut_tile<'b>(&'b mut self, x: i32, y: i32) -> Option<&'b mut Tile<'a>> {
378 |         for tile in self.tiles.iter_mut() {
379 |             if tile.tile_x == x && tile.tile_y == y {
380 |                 return Some(tile);
381 |             }
382 |         }
383 | 
384 |         None
385 |     }
386 | 
387 |     fn get_tile_count(&self, x: i32, y: i32) -> i32 {
388 |         let mut count = 0;
389 |         for tile in self.tiles.iter() {
390 |             if tile.tile_x == x && tile.tile_y == y {
391 |                 count += 1;
392 |             }
393 |         }
394 | 
395 |         count
396 |     }
397 | 
398 |     fn render_board(&self, c: &Context, gl: &mut GlGraphics) {
399 |         Rectangle::new(rgb2rgba(self.settings.label_color))
400 |         .draw(
401 |             [self.settings.board_padding,
402 |             self.settings.board_padding + self.settings.board_offset_y,
403 |             self.settings.board_size[0],
404 |             self.settings.board_size[1]],
405 |             &DrawState::default(),
406 |             c.transform,
407 |             gl);
408 | 
409 |         let mut x = self.settings.board_padding + self.settings.tile_padding;
410 |         let mut y = self.settings.board_padding + self.settings.board_offset_y + self.settings.tile_padding;
411 | 
412 |         for _ in 0..self.settings.tile_height {
413 |             for _ in 0..self.settings.tile_width {
414 |                 Rectangle::new(
415 |                     rgb2rgba(self.settings.tiles_colors[0]))
416 |                     .draw([x, y, self.settings.tile_size, self.settings.tile_size],
417 |                     &DrawState::default(),
418 |                     c.transform,
419 |                     gl);
420 | 
421 |                 x += self.settings.tile_padding + self.settings.tile_size;
422 |             }
423 | 
424 |             x = self.settings.board_padding + self.settings.tile_padding;
425 |             y += self.settings.tile_padding + self.settings.tile_size;
426 |         }
427 |     }
428 | 
429 |     fn render_tiles(&self, number_renderer: &NumberRenderer, c: &Context, gl: &mut GlGraphics) {
430 |         for tile in self.tiles.iter() {
431 |             tile.render(number_renderer, c, gl);
432 |         }
433 |     }
434 | 
435 |     fn add_score(&mut self, score: i32) {
436 |         self.score += score;
437 |         println!("Score: {}", self.score);
438 |     }
439 | }
440 | 


--------------------------------------------------------------------------------
/src/main.rs:
--------------------------------------------------------------------------------
 1 | extern crate rustc_serialize;
 2 | extern crate rand;
 3 | extern crate piston_window;
 4 | extern crate opengl_graphics;
 5 | extern crate sdl2_window;
 6 | 
 7 | use piston_window::*;
 8 | use sdl2_window::Sdl2Window;
 9 | 
10 | mod app;
11 | mod board;
12 | mod number_renderer;
13 | mod settings;
14 | mod tile;
15 | 
16 | fn main() {
17 | 	use opengl_graphics::GlGraphics;	
18 |     let settings = settings::Settings::load();
19 | 
20 | 	let (width, height) = (settings.window_size[0], 
21 | 	                       settings.window_size[1]);
22 | 
23 |     // according to piston WindowSettings documentation, OpenGL::V3_2 is the default version
24 |     let mut window: PistonWindow<Sdl2Window> =
25 |         WindowSettings::new("Rust-2048", [width, height])
26 |             .exit_on_esc(true)
27 |             .build()
28 |             .unwrap_or_else(|e| { panic!("Failed to build PistonWindow: {}", e) });
29 | 
30 |     let mut app = app::App::new(&settings);
31 | 
32 |     app.load();
33 | 
34 |     let mut gl = GlGraphics::new(OpenGL::V3_2);
35 | 
36 |     while let Some(e) = window.next() {
37 |         if let Some(ref args) = e.render_args() {
38 |             app.render(args, &mut gl);
39 |         }
40 | 
41 |         if let Some(ref args) = e.update_args() {
42 |            // TODO: only update if necessary
43 |            // println!("update");
44 |            app.update(args);
45 |         }
46 | 
47 |         if let Some(ref args) = e.press_args() {
48 |             app.key_press(args);
49 |         }
50 |     }
51 | }
52 | 


--------------------------------------------------------------------------------
/src/number_renderer.rs:
--------------------------------------------------------------------------------
 1 | use std::path::Path;
 2 | use piston_window::*;
 3 | use opengl_graphics::GlGraphics;
 4 | use opengl_graphics::Texture as GlTexture;
 5 | 
 6 | static DIGITS_WIDTH: f64 = 20.0;
 7 | static DIGITS_HEIGHT: f64 = 26.0;
 8 | 
 9 | pub struct NumberRenderer {
10 |     image: GlTexture,
11 | }
12 | 
13 | impl NumberRenderer {
14 |     pub fn new() -> NumberRenderer {
15 |         NumberRenderer {
16 |             image: GlTexture::from_path(
17 |                     Path::new("bin/assets/digits.png"),
18 |                     &TextureSettings::new(),
19 |             ).unwrap(),
20 |         }
21 |     }
22 | 
23 |     pub fn render(&self, number: u32, center_x: f64, center_y: f64, max_width: f64,
24 |                   color: [f32; 3], c: &Context, gl: &mut GlGraphics) {
25 |         let digits = number_to_digits(number);
26 |         let total_width = DIGITS_WIDTH * digits.len() as f64;
27 |         let total_width = if total_width > max_width {
28 |             max_width
29 |         } else {
30 |             total_width
31 |         };
32 |         let mut x = center_x - total_width / 2.0;
33 |         let width = total_width / digits.len() as f64;
34 |         let height = width / DIGITS_WIDTH * DIGITS_HEIGHT;
35 |         let y = center_y - height / 2.0;
36 | 
37 |         for digit in digits.iter() {
38 |             Image::new_color([color[0], color[1], color[2], 1.0])
39 |                 .src_rect([(*digit * DIGITS_WIDTH as u32) as f64, 0 as f64, DIGITS_WIDTH as f64, DIGITS_HEIGHT as f64])
40 |                 .rect([x, y, width, height])
41 |                 .draw(&self.image,
42 |                       &DrawState::default(),
43 |                       c.transform,
44 |                       gl);
45 | 
46 |             x += width;
47 |         }
48 |     }
49 | }
50 | 
51 | fn number_to_digits(number: u32) -> Vec<u32> {
52 |     let mut digits = Vec::<u32>::new();
53 | 
54 |     if number == 0 {
55 |         digits.push(0);
56 |         return digits;
57 |     }
58 | 
59 |     let mut n = number;
60 | 
61 |     while n != 0 {
62 |         digits.insert(0, n % 10);
63 |         n /= 10;
64 |     }
65 | 
66 |     digits
67 | }


--------------------------------------------------------------------------------
/src/settings.rs:
--------------------------------------------------------------------------------
  1 | 
  2 | use std::env::current_exe;
  3 | use std::io::{BufWriter, BufReader, Write};
  4 | use std::fs::{File};
  5 | use std::path::Path;
  6 | use rustc_serialize::{ json, Encodable, Decodable };
  7 | 
  8 | static SETTING_FILENAME: &'static str = "settings.json";
  9 | 
 10 | pub struct Settings {
 11 |     pub asset_folder: String,
 12 |     pub window_size: [u32; 2],
 13 |     pub window_background_color: [f32; 3],
 14 |     pub comment1_offset_y: f64,
 15 |     pub comment2_offset_y: f64,
 16 |     pub board_padding: f64,
 17 |     pub board_size: [f64; 2],
 18 |     pub board_offset_y: f64,
 19 |     pub tile_width: i32,
 20 |     pub tile_height: i32,
 21 |     pub tile_size: f64,
 22 |     pub tile_padding: f64,
 23 |     pub tile_background_color: [f32; 3],
 24 |     pub tiles_colors: Vec<[f32; 3]>,
 25 |     pub tile_unknow_color: [f32; 3],
 26 |     pub tile_move_time: f64,
 27 |     pub tile_new_time: f64,
 28 |     pub tile_combine_time: f64,
 29 |     pub best_rect: [f64; 4],
 30 |     pub score_rect: [f64; 4],
 31 |     pub label_color: [f32; 3],
 32 |     pub button_color: [f32; 3],
 33 |     pub text_dark_color: [f32; 3],
 34 |     pub text_light_color: [f32; 3],
 35 | }
 36 | 
 37 | impl Settings {
 38 |     pub fn load() -> Settings {
 39 |         Settings::from_settings_in_json(&SettingsInJson::load())
 40 |     }
 41 | 
 42 |     fn from_settings_in_json<'a>(s: &'a SettingsInJson) -> Settings {
 43 |         let board_size = [
 44 |             s.tile_size * s.tile_width as f64 + s.tile_padding * (s.tile_width + 1) as f64,
 45 |             s.tile_size * s.tile_height as f64 + s.tile_padding * (s.tile_height + 1) as f64,
 46 |         ];
 47 | 
 48 |         let mut tiles_colors = Vec::<[f32; 3]>::new();
 49 | 
 50 |         for color in s.tiles_colors.iter() {
 51 |             tiles_colors.push([
 52 |                 color[0] / 255.0,
 53 |                 color[1] / 255.0,
 54 |                 color[2] / 255.0,
 55 |             ]);
 56 |         }
 57 | 
 58 |         Settings {
 59 |             asset_folder: s.asset_folder.clone(),
 60 |             comment1_offset_y: s.comment1_offset_y,
 61 |             comment2_offset_y: s.comment2_offset_y,
 62 |             window_size: [
 63 |                 (s.board_padding * 2.0 + board_size[0]) as u32,
 64 |                 (s.board_padding * 2.0 + board_size[1] + s.board_offset_y) as u32,
 65 |             ],
 66 |             window_background_color: [
 67 |                 s.window_background_color[0] / 255.0,
 68 |                 s.window_background_color[1] / 255.0,
 69 |                 s.window_background_color[2] / 255.0,
 70 |             ],
 71 |             board_padding: s.board_padding,
 72 |             board_size: board_size,
 73 |             board_offset_y: s.board_offset_y,
 74 |             tile_width: s.tile_width,
 75 |             tile_height: s.tile_height,
 76 |             tile_size: s.tile_size,
 77 |             tile_padding: s.tile_padding,
 78 |             tile_background_color: [
 79 |                 s.tile_background_color[0] / 255.0,
 80 |                 s.tile_background_color[1] / 255.0,
 81 |                 s.tile_background_color[2] / 255.0,
 82 |             ],
 83 |             tiles_colors: tiles_colors,
 84 |             tile_unknow_color: [
 85 |                 s.tile_unknow_color[0] / 255.0,
 86 |                 s.tile_unknow_color[1] / 255.0,
 87 |                 s.tile_unknow_color[2] / 255.0,
 88 |             ],
 89 |             tile_move_time: s.tile_move_time,
 90 |             tile_new_time: s.tile_new_time,
 91 |             tile_combine_time: s.tile_combine_time,
 92 |             best_rect: [
 93 |                 s.best_rect[0],
 94 |                 s.best_rect[1],
 95 |                 s.best_rect[2],
 96 |                 s.best_rect[3],
 97 |             ],
 98 |             score_rect: [
 99 |                 s.score_rect[0],
100 |                 s.score_rect[1],
101 |                 s.score_rect[2],
102 |                 s.score_rect[3],
103 |             ],
104 |             label_color: [
105 |                 s.label_color[0] / 255.0,
106 |                 s.label_color[1] / 255.0,
107 |                 s.label_color[2] / 255.0,
108 |             ],
109 |             button_color: [
110 |                 s.button_color[0] / 255.0,
111 |                 s.button_color[1] / 255.0,
112 |                 s.button_color[2] / 255.0,
113 |             ],
114 |             text_dark_color: [
115 |                 s.text_dark_color[0] / 255.0,
116 |                 s.text_dark_color[1] / 255.0,
117 |                 s.text_dark_color[2] / 255.0,
118 |             ],
119 |             text_light_color: [
120 |                 s.text_light_color[0] / 255.0,
121 |                 s.text_light_color[1] / 255.0,
122 |                 s.text_light_color[2] / 255.0,
123 |             ],
124 |         }
125 |     }
126 | }
127 | 
128 | #[derive(RustcEncodable, RustcDecodable)]
129 | struct SettingsInJson {
130 |     asset_folder: String,
131 | 
132 |     // r g b (0 - 255)
133 |     window_background_color: Vec<f32>,
134 | 
135 |     comment1_offset_y: f64,
136 |     comment2_offset_y: f64,
137 | 
138 |     board_padding: f64,
139 |     board_offset_y: f64,
140 | 
141 |     tile_width: i32,
142 |     tile_height: i32,
143 |     tile_size: f64,
144 |     tile_padding: f64,
145 |     tile_background_color: Vec<f32>,
146 |     tiles_colors: Vec<Vec<f32>>,
147 |     tile_unknow_color: Vec<f32>,
148 | 
149 |     tile_move_time: f64,
150 |     tile_new_time: f64,
151 |     tile_combine_time: f64,
152 | 
153 |     best_rect: Vec<f64>,
154 |     score_rect: Vec<f64>,
155 | 
156 |     label_color: Vec<f32>,
157 |     button_color: Vec<f32>,
158 |     text_dark_color: Vec<f32>,
159 |     text_light_color: Vec<f32>,
160 | }
161 | 
162 | impl SettingsInJson {
163 |     pub fn default_settings() -> SettingsInJson {
164 |         let mut tiles_colors = Vec::<Vec<f32>>::new();
165 |         // empty color
166 |         tiles_colors.push(vec![204.0, 192.0, 179.0]);
167 |         // 2 color
168 |         tiles_colors.push(vec![238.0, 228.0, 218.0]);
169 |         // 4 color
170 |         tiles_colors.push(vec![237.0, 224.0, 200.0]);
171 |         // 8 color
172 |         tiles_colors.push(vec![242.0, 177.0, 121.0]);
173 |         // 16 color
174 |         tiles_colors.push(vec![245.0, 149.0, 99.0]);
175 |         // 32 color
176 |         tiles_colors.push(vec![246.0, 124.0, 95.0]);
177 |         // 64 color
178 |         tiles_colors.push(vec![246.0, 94.0, 59.0]);
179 |         // 128 color
180 |         tiles_colors.push(vec![237.0, 207.0, 114.0]);
181 |         // 256 color
182 |         tiles_colors.push(vec![237.0, 204.0, 97.0]);
183 |         // 512 color
184 |         tiles_colors.push(vec![237.0, 200.0, 80.0]);
185 |         SettingsInJson {
186 |             asset_folder: "bin/assets".to_string(),
187 |             window_background_color: vec![255.0, 248.0, 239.0],
188 |             comment1_offset_y: 72.0,
189 |             comment2_offset_y: 100.0,
190 |             board_padding: 12.0,
191 |             board_offset_y: 128.0,
192 |             tile_width: 4,
193 |             tile_height: 4,
194 |             tile_size: 72.0,
195 |             tile_padding: 16.0,
196 |             tile_background_color: vec![187.0, 173.0, 160.0],
197 |             tiles_colors: tiles_colors,
198 |             tile_unknow_color: vec![200.0, 0.0, 0.0],
199 |             tile_move_time: 0.1,
200 |             tile_new_time: 0.1,
201 |             tile_combine_time: 0.1,
202 |             best_rect: vec![284.0, 12.0, 96.0, 48.0,],
203 |             score_rect: vec![176.0, 12.0, 96.0, 48.0],
204 |             label_color: vec![187.0, 173.0, 160.0],
205 |             button_color: vec![142.0, 122.0, 102.0],
206 |             text_dark_color: vec![119.0, 110.0, 101.0],
207 |             text_light_color: vec![249.0, 246.0, 242.0],
208 |         }
209 |     }
210 | 
211 |     pub fn load() -> SettingsInJson {
212 |         let exe_path = current_exe();
213 | 
214 |         if exe_path.is_err() {
215 |             return SettingsInJson::default_settings();
216 |         }
217 | 
218 |         let mut exe_path = exe_path.unwrap();
219 |         exe_path.pop();
220 |         let path = exe_path.join(Path::new(SETTING_FILENAME));
221 | 
222 |         // FIXME: use this if possible  (.exists() is unstable in Rust 1.0.0)
223 |         /*      if !path.as_path().exists() || !path.is_file() {
224 |                     println!("Configuration file not found. Generating a default one.");
225 |                     let default = SettingsInJson::default_settings();
226 |                     default.save();
227 |                     return default;
228 |                 }
229 |                 let file = File::open(&path).unwrap();
230 |                 let mut reader = BufReader::new(file);
231 |         */
232 |             let file = File::open(&path);
233 | 
234 |             match file {
235 |                 Err(e) => {
236 |                     println!("Configuration file can't be open ({}). Try to generate a default one.", e);
237 |                     let default = SettingsInJson::default_settings();
238 |                     default.save();
239 |                     return default;
240 |                 },
241 |                 _ => {}
242 |             }
243 | 
244 |             let mut reader = BufReader::new(file.unwrap());
245 |         // End FIXME
246 | 
247 |         let mut decoder = json::Decoder::new(json::Json::from_reader(&mut reader).unwrap());
248 |         Decodable::decode(&mut decoder).unwrap()
249 |     }
250 | 
251 |     pub fn save(&self) {
252 |         let exe_path = current_exe();
253 | 
254 |         if exe_path.is_err() {
255 |             println!("WARNING: Failed to save settings: can't find exe path.");
256 |             return;
257 |         }
258 | 
259 |         let path = exe_path.unwrap();
260 |         let file = File::create(&path.with_file_name(SETTING_FILENAME)).unwrap();
261 |         let mut writer = BufWriter::new(file);
262 | 
263 |         match json::encode(self) {
264 |             Ok(encoded) => {
265 |                 if let Err(e) = writer.write(encoded.as_bytes()) {
266 |                     println!("WARNING: Failed to save settings: {}", e);
267 |                 }
268 |             },
269 |             Err(e) => {
270 |                 println!("WARNING: Failed to save settings: {}", e);
271 |             }
272 |         }
273 |     }
274 | }
275 | 


--------------------------------------------------------------------------------
/src/tile.rs:
--------------------------------------------------------------------------------
  1 | use piston_window::*;
  2 | use opengl_graphics::GlGraphics;
  3 | use number_renderer::NumberRenderer;
  4 | use settings::Settings;
  5 | 
  6 | #[derive(Clone, PartialEq)]
  7 | pub enum TileState {
  8 |     TileStatic,
  9 |     /// (t, x, y, origin_x, origin_y)
 10 |     TileMoving(f64, f64, f64, i32, i32),
 11 |     /// (t, size)
 12 |     TileNew(f64, f64),
 13 |     /// (t, size)
 14 |     TileCombine(f64, f64),
 15 | }
 16 | 
 17 | #[derive(Clone)]
 18 | pub struct Tile<'a> {
 19 |     pub score: i32,
 20 |     pub tile_x: i32,
 21 |     pub tile_y: i32,
 22 |     pub status: TileState,
 23 | 
 24 |     settings: &'a Settings,
 25 | }
 26 | 
 27 | impl<'a> Tile<'a> {
 28 |     pub fn new(settings: &'a Settings, score: i32, tile_x: i32, tile_y: i32) -> Tile<'a> {
 29 |         Tile {
 30 |             score: score,
 31 |             tile_x: tile_x,
 32 |             tile_y: tile_y,
 33 |             status: TileState::TileNew(settings.tile_new_time, 0.0),
 34 | 
 35 |             settings: settings,
 36 |         }
 37 |     }
 38 | 
 39 |     pub fn new_combined(settings: &'a Settings, score: i32, tile_x: i32, tile_y: i32) -> Tile<'a> {
 40 |         Tile {
 41 |             score: score,
 42 |             tile_x: tile_x,
 43 |             tile_y: tile_y,
 44 |             status: TileState::TileCombine(settings.tile_combine_time, 1.2 * settings.tile_size),
 45 | 
 46 |             settings: settings,
 47 |         }
 48 |     }
 49 | 
 50 |     fn tile_to_pos(&self, tile_x: i32, tile_y: i32) -> (f64, f64) {
 51 |         let x = self.settings.board_padding + tile_x as f64 * self.settings.tile_size + (tile_x + 1) as f64 * self.settings.tile_padding;
 52 |         let y = self.settings.board_padding + self.settings.board_offset_y + tile_y as f64 * self.settings.tile_size + (tile_y + 1) as f64 * self.settings.tile_padding;
 53 |         (x, y)
 54 |     }
 55 | 
 56 |     pub fn start_moving(&mut self, destination_tile_x: i32, destination_tile_y: i32) {
 57 |         match self.status {
 58 |             TileState::TileMoving(_, _, _, ox, oy) => {
 59 |                 let (x, y) = self.tile_to_pos(ox, oy);
 60 |                 self.status = TileState::TileMoving(self.settings.tile_move_time, x, y, ox, oy);
 61 |                 self.tile_x = destination_tile_x;
 62 |                 self.tile_y = destination_tile_y;
 63 |             },
 64 |             TileState::TileStatic => {
 65 |                 let (x, y) = self.tile_to_pos(self.tile_x, self.tile_y);
 66 |                 self.status = TileState::TileMoving(self.settings.tile_move_time, x, y, self.tile_x, self.tile_y);
 67 |                 self.tile_x = destination_tile_x;
 68 |                 self.tile_y = destination_tile_y;
 69 |             },
 70 |             _ => {},
 71 |         }
 72 |     }
 73 | 
 74 |     pub fn update(&mut self, dt: f64) {
 75 |         match self.status {
 76 |             TileState::TileMoving(t, x, y, ox, oy) => {
 77 |                 if dt >= t {
 78 |                     self.status = TileState::TileStatic;
 79 |                 } else {
 80 |                     let (dx, dy) = self.tile_to_pos(self.tile_x, self.tile_y);
 81 |                     let factor = dt / t;
 82 |                     self.status = TileState::TileMoving(t - dt, x + factor * (dx - x), y + factor * (dy - y), ox, oy);
 83 |                 }
 84 |             },
 85 |             TileState::TileNew(t, size) => {
 86 |                 if dt >= t {
 87 |                     self.status = TileState::TileStatic;
 88 |                 } else {
 89 |                     let factor = dt / t;
 90 |                     self.status = TileState::TileNew(t - dt, size + factor * (self.settings.tile_size - size));
 91 |                 }
 92 |             },
 93 |             TileState::TileCombine(t, size) => {
 94 |                 if dt >= t {
 95 |                     self.status = TileState::TileStatic;
 96 |                 } else {
 97 |                     let factor = dt / t;
 98 |                     self.status = TileState::TileCombine(t - dt, size + factor * (self.settings.tile_size - size));
 99 |                 }
100 |             },
101 |             _ => {},
102 |         }
103 |     }
104 | 
105 |     pub fn render(&self, number_renderer: &NumberRenderer, c: &Context, gl: &mut GlGraphics) {
106 |         let mut pos = self.tile_to_pos(self.tile_x, self.tile_y);
107 |         let mut size = (self.settings.tile_size, self.settings.tile_size);
108 | 
109 |         match self.status {
110 |             TileState::TileMoving(_, x, y, _, _) => {
111 |                 pos = (x, y);
112 |             },
113 |             TileState::TileNew(_, s) => {
114 |                 size = (s, s);
115 |             },
116 |             TileState::TileCombine(_, s) => {
117 |                 size = (s, s);
118 |             },
119 |             _ => {},
120 |         }
121 | 
122 |         let (x, y) = pos;
123 |         let (w, h) = size;
124 |         let color = self.get_color();
125 | 
126 |         Rectangle::new([color[0], color[1], color[2], 1.0])
127 |             .draw(rectangle::centered([x + self.settings.tile_size / 2.0,
128 |                                        y + self.settings.tile_size / 2.,
129 |                                        w/2.0, h/2.0]),
130 |                   &DrawState::default(),
131 |                   c.transform,
132 |                   gl);
133 | 
134 |         let color = if self.score >= 8 {
135 |             self.settings.text_light_color
136 |         } else {
137 |             self.settings.text_dark_color
138 |         };
139 | 
140 |         number_renderer.render(self.score as u32, x + self.settings.tile_size / 2.0, y + self.settings.tile_size / 2.0, self.settings.tile_size, color, c, gl);
141 |     }
142 | 
143 |     fn get_color(&self) -> [f32; 3] {
144 |         let i = (self.score as f64).log2() as usize;
145 |         if i > 0 && i < self.settings.tiles_colors.len() {
146 |             self.settings.tiles_colors[i]
147 |         } else {
148 |             self.settings.tile_unknow_color
149 |         }
150 |     }
151 | }
152 | 


--------------------------------------------------------------------------------