Commit | Line | Data |
---|---|---|
6ba7aef1 TW |
1 | use boll::*; |
2 | use common::{Point2D, Rect}; | |
3 | use point; // defined in common, but loaded from main... | |
95e3e10d | 4 | use rand::Rng; |
541aee90 | 5 | use sdl2::event::{Event, WindowEvent}; |
6ba7aef1 | 6 | use sdl2::gfx::primitives::DrawRenderer; |
95e3e10d | 7 | use sdl2::keyboard::Keycode; |
3bfea951 | 8 | use sdl2::pixels::Color; |
6ba7aef1 | 9 | use sdl2::rect::Rect as SDLRect; |
541aee90 TW |
10 | use sdl2::render::{BlendMode, Canvas}; |
11 | use sdl2::video::{FullscreenType, SwapInterval, Window}; | |
6ba7aef1 | 12 | use sdl2::{EventPump, VideoSubsystem}; |
3bfea951 | 13 | use sprites::SpriteManager; |
6ba7aef1 TW |
14 | use std::f32::consts::PI; |
15 | use time::PreciseTime; | |
95e3e10d TW |
16 | |
17 | pub type Nanoseconds = u64; | |
3bfea951 | 18 | |
6ba7aef1 TW |
19 | const FPS: u32 = 60; |
20 | const NS_PER_FRAME: u32 = 1_000_000_000 / FPS; | |
21 | ||
6edafdc0 TW |
22 | #[derive(Default)] |
23 | pub struct AppBuilder { | |
24 | resolution: Rect<u16>, | |
6edafdc0 TW |
25 | state: Option<Box<dyn AppState>>, |
26 | title: Option<String>, | |
3bfea951 TW |
27 | } |
28 | ||
6edafdc0 TW |
29 | impl AppBuilder { |
30 | pub fn with_resolution(mut self, width: u16, height: u16) -> Self { | |
6ba7aef1 TW |
31 | self.resolution = Rect { width, height }; |
32 | self | |
6edafdc0 TW |
33 | } |
34 | ||
6edafdc0 | 35 | pub fn with_state(mut self, state: Box<dyn AppState>) -> Self { |
6ba7aef1 TW |
36 | self.state = Some(state); |
37 | self | |
6edafdc0 TW |
38 | } |
39 | ||
40 | pub fn with_title(mut self, title: &str) -> Self { | |
6ba7aef1 TW |
41 | self.title = Some(title.to_string()); |
42 | self | |
6edafdc0 TW |
43 | } |
44 | ||
fea68d56 | 45 | pub fn build(self) -> Result<App, String> { |
3bfea951 | 46 | let context = sdl2::init().unwrap(); |
fea68d56 | 47 | sdl2::image::init(sdl2::image::InitFlag::PNG)?; |
6ba7aef1 | 48 | let video = context.video()?; |
fea68d56 | 49 | |
6ba7aef1 | 50 | self.print_video_display_modes(&video); |
fea68d56 TW |
51 | |
52 | let window = video | |
6ba7aef1 TW |
53 | .window( |
54 | &self.title.unwrap(), | |
55 | self.resolution.width.into(), | |
56 | self.resolution.height.into(), | |
57 | ) | |
3bfea951 | 58 | .position_centered() |
6ba7aef1 TW |
59 | // .fullscreen() |
60 | // .fullscreen_desktop() | |
3bfea951 | 61 | .opengl() |
6ba7aef1 TW |
62 | .build() |
63 | .unwrap(); | |
3bfea951 | 64 | context.mouse().show_cursor(false); |
6edafdc0 | 65 | |
3bfea951 TW |
66 | let mut canvas = window.into_canvas().build().unwrap(); |
67 | canvas.set_blend_mode(BlendMode::Add); | |
68 | canvas.set_draw_color(Color::RGB(0, 0, 0)); | |
69 | canvas.clear(); | |
70 | canvas.present(); | |
6edafdc0 | 71 | |
6ba7aef1 | 72 | video.gl_set_swap_interval(SwapInterval::VSync)?; |
fea68d56 TW |
73 | |
74 | let event_pump = context.event_pump()?; | |
3bfea951 | 75 | let sprites = SpriteManager::new(canvas.texture_creator()); |
77034de9 | 76 | let screen = canvas.output_size().unwrap(); |
6edafdc0 | 77 | |
fea68d56 | 78 | Ok(App { |
3bfea951 TW |
79 | canvas, |
80 | event_pump, | |
81 | sprites, | |
77034de9 | 82 | state: self.state.unwrap_or_else(|| Box::new(ActiveState::new(screen))), |
fea68d56 TW |
83 | }) |
84 | } | |
85 | ||
86 | fn print_video_display_modes(&self, video: &VideoSubsystem) { | |
6ba7aef1 TW |
87 | println!("video subsystem: {:?}", video); |
88 | println!("current_video_driver: {:?}", video.current_video_driver()); | |
89 | for display in 0..video.num_video_displays().unwrap() { | |
90 | println!( | |
91 | "=== display {} - {} ===", | |
92 | display, | |
93 | video.display_name(display).unwrap() | |
94 | ); | |
95 | println!( | |
96 | " display_bounds: {:?}", | |
97 | video.display_bounds(display).unwrap() | |
98 | ); | |
99 | println!( | |
100 | " num_display_modes: {:?}", | |
101 | video.num_display_modes(display).unwrap() | |
102 | ); | |
103 | println!( | |
104 | " desktop_display_mode: {:?}", | |
105 | video.desktop_display_mode(display).unwrap() | |
106 | ); | |
1f362f49 | 107 | let current = video.current_display_mode(display).unwrap(); |
6ba7aef1 TW |
108 | println!( |
109 | " current_display_mode: {:?}", | |
1f362f49 | 110 | current |
6ba7aef1 | 111 | ); |
1f362f49 TW |
112 | for idx in 0..video.num_display_modes(display).unwrap() { |
113 | let mode = video.display_mode(display, idx).unwrap(); | |
6ba7aef1 | 114 | println!( |
1f362f49 TW |
115 | " {}{:2}: {:?}", |
116 | if mode == current { "*" } else { " " }, | |
117 | idx, | |
118 | mode | |
6ba7aef1 TW |
119 | ); |
120 | } | |
121 | } | |
122 | println!("swap interval: {:?}", video.gl_get_swap_interval()); | |
3bfea951 | 123 | } |
6edafdc0 TW |
124 | } |
125 | ||
126 | pub struct App { | |
127 | pub canvas: Canvas<Window>, | |
128 | pub event_pump: EventPump, | |
129 | pub sprites: SpriteManager, | |
130 | pub state: Box<dyn AppState>, | |
131 | } | |
132 | ||
133 | impl App { | |
98995f2b | 134 | #[allow(clippy::new_ret_no_self)] |
6edafdc0 | 135 | pub fn new() -> AppBuilder { |
6ba7aef1 | 136 | Default::default() |
6edafdc0 | 137 | } |
3bfea951 | 138 | |
1e322944 | 139 | pub fn load_sprites(&mut self, sprites: &[(&str, &str)]) { |
3bfea951 TW |
140 | for (name, file) in sprites { |
141 | self.sprites.load(name, file); | |
142 | } | |
143 | } | |
6ba7aef1 TW |
144 | |
145 | pub fn start(&mut self) { | |
146 | let mut frame_count: u64 = 0; | |
147 | let mut fps_time = PreciseTime::now(); | |
148 | let mut last_time = PreciseTime::now(); | |
6ba7aef1 TW |
149 | |
150 | 'running: loop { | |
541aee90 TW |
151 | if let Err(_) = self.handle_events() { |
152 | break 'running; | |
153 | } | |
6ba7aef1 TW |
154 | |
155 | let duration = | |
156 | last_time.to(PreciseTime::now()).num_nanoseconds().unwrap() as Nanoseconds; | |
157 | last_time = PreciseTime::now(); | |
158 | self.state.update(duration); | |
541aee90 TW |
159 | |
160 | self.render(); | |
6ba7aef1 TW |
161 | |
162 | frame_count += 1; | |
163 | if frame_count == FPS as u64 { | |
164 | let duration = fps_time.to(PreciseTime::now()).num_nanoseconds().unwrap() as f64 | |
165 | / 1_000_000_000.0; | |
166 | println!("fps: {}", frame_count as f64 / duration); | |
167 | frame_count = 0; | |
168 | fps_time = PreciseTime::now(); | |
169 | } | |
170 | } | |
171 | ||
172 | self.state.leave(); | |
173 | } | |
541aee90 TW |
174 | |
175 | fn handle_events(&mut self) -> Result<(), ()> { | |
176 | for event in self.event_pump.poll_iter() { | |
177 | match event { | |
178 | Event::Quit { .. } | |
179 | | Event::KeyDown { | |
180 | keycode: Some(Keycode::Escape), | |
181 | .. | |
182 | } => { | |
183 | return Err(()) | |
184 | } | |
185 | Event::KeyDown { | |
186 | keycode: Some(Keycode::F11), | |
187 | .. | |
188 | } => { | |
189 | match self.canvas.window().fullscreen_state() { | |
190 | FullscreenType::Off => self | |
191 | .canvas | |
192 | .window_mut() | |
193 | .set_fullscreen(FullscreenType::Desktop), | |
194 | _ => self.canvas.window_mut().set_fullscreen(FullscreenType::Off), | |
195 | } | |
196 | .unwrap(); | |
197 | } | |
198 | Event::Window { | |
199 | win_event: WindowEvent::Resized(x, y), | |
200 | .. | |
201 | } => { | |
202 | println!("window resized({}, {})", x, y) | |
203 | } | |
204 | Event::Window { | |
205 | win_event: WindowEvent::Maximized, | |
206 | .. | |
207 | } => { | |
208 | println!("window maximized") | |
209 | } | |
210 | Event::Window { | |
211 | win_event: WindowEvent::Restored, | |
212 | .. | |
213 | } => { | |
214 | println!("window restored") | |
215 | } | |
216 | Event::Window { | |
217 | win_event: WindowEvent::Enter, | |
218 | .. | |
219 | } => { | |
220 | println!("window enter") | |
221 | } | |
222 | Event::Window { | |
223 | win_event: WindowEvent::Leave, | |
224 | .. | |
225 | } => { | |
226 | println!("window leave") | |
227 | } | |
228 | Event::Window { | |
229 | win_event: WindowEvent::FocusGained, | |
230 | .. | |
231 | } => { | |
232 | println!("window focus gained") | |
233 | } | |
234 | Event::Window { | |
235 | win_event: WindowEvent::FocusLost, | |
236 | .. | |
237 | } => { | |
238 | println!("window focus lost") | |
239 | } | |
240 | _ => self.state.on_event(event), | |
241 | } | |
242 | } | |
243 | Ok(()) | |
244 | } | |
245 | ||
246 | fn render(&mut self) { | |
247 | self.canvas.set_draw_color(Color::RGB(0, 0, 0)); | |
248 | self.canvas.clear(); | |
249 | self.state.render(&mut self.canvas, &mut self.sprites); | |
250 | self.canvas.present(); | |
251 | } | |
3bfea951 | 252 | } |
95e3e10d TW |
253 | |
254 | pub trait AppState { | |
255 | fn update(&mut self, dt: Nanoseconds); | |
541aee90 | 256 | fn render(&mut self, canvas: &mut Canvas<Window>, sprites: &mut SpriteManager); |
95e3e10d TW |
257 | fn leave(&self); |
258 | fn on_event(&mut self, event: Event); | |
259 | } | |
260 | ||
261 | type Bollar = Vec<Box<dyn Boll>>; | |
262 | ||
541aee90 | 263 | #[derive(Default)] |
95e3e10d | 264 | pub struct ActiveState { |
77034de9 | 265 | screen: Rect<u32>, |
95e3e10d TW |
266 | bolls: Bollar, |
267 | boll_size: u32, | |
541aee90 | 268 | mario_angle: f64, |
95e3e10d TW |
269 | } |
270 | ||
271 | impl ActiveState { | |
77034de9 | 272 | pub fn new(screen: (u32, u32)) -> ActiveState { |
95e3e10d TW |
273 | ActiveState { |
274 | bolls: Bollar::new(), | |
275 | boll_size: 1, | |
77034de9 | 276 | screen: Rect::from(screen), |
541aee90 | 277 | ..Default::default() |
95e3e10d TW |
278 | } |
279 | } | |
280 | ||
281 | fn change_boll_count(&mut self, delta: i32) { | |
98995f2b | 282 | #[allow(clippy::comparison_chain)] |
95e3e10d TW |
283 | if delta > 0 { |
284 | for _i in 0..delta { | |
285 | self.add_boll(); | |
286 | } | |
287 | } else if delta < 0 { | |
5cbbebbe | 288 | for _i in 0..(-delta) { |
95e3e10d TW |
289 | self.bolls.pop(); |
290 | } | |
291 | } | |
292 | } | |
293 | ||
294 | fn add_boll(&mut self) { | |
295 | let mut rng = rand::thread_rng(); | |
296 | self.bolls.push(Box::new(SquareBoll { | |
6ba7aef1 | 297 | pos: point!( |
77034de9 TW |
298 | rng.gen_range(0, self.screen.width) as f64, |
299 | rng.gen_range(0, self.screen.height) as f64 | |
6ba7aef1 | 300 | ), |
95e3e10d TW |
301 | vel: point!(rng.gen_range(-2.0, 2.0), rng.gen_range(-2.0, 2.0)), |
302 | })); | |
303 | } | |
304 | } | |
305 | ||
306 | impl AppState for ActiveState { | |
307 | fn update(&mut self, dt: Nanoseconds) { | |
93679b27 | 308 | for b in &mut self.bolls { |
95e3e10d TW |
309 | b.update(); |
310 | } | |
311 | ||
312 | match dt { | |
6ba7aef1 TW |
313 | ns if ns < (NS_PER_FRAME - 90_0000) as u64 => self.change_boll_count(100), |
314 | ns if ns > (NS_PER_FRAME + 90_0000) as u64 => self.change_boll_count(-100), | |
95e3e10d TW |
315 | _ => {} |
316 | } | |
317 | } | |
318 | ||
541aee90 TW |
319 | fn render(&mut self, canvas: &mut Canvas<Window>, sprites: &mut SpriteManager) { |
320 | /* draw square of blocks */ { | |
321 | let blocks = 20; | |
322 | let size = 32; | |
323 | let offset = point!( | |
324 | (self.screen.width as i32 - (blocks + 1) * size) / 2, | |
325 | (self.screen.height as i32 - (blocks + 1) * size) / 2 | |
326 | ); | |
327 | let block = sprites.get("block"); | |
328 | for i in 0..blocks { | |
329 | canvas | |
330 | .copy( | |
331 | block, | |
332 | None, | |
333 | SDLRect::new((i) * size + offset.x, offset.y, size as u32, size as u32), | |
334 | ) | |
335 | .unwrap(); | |
336 | canvas | |
337 | .copy( | |
338 | block, | |
339 | None, | |
340 | SDLRect::new( | |
341 | (blocks - i) * size + offset.x, | |
342 | (blocks) * size + offset.y, | |
343 | size as u32, | |
344 | size as u32, | |
345 | ), | |
346 | ) | |
347 | .unwrap(); | |
348 | canvas | |
349 | .copy( | |
350 | block, | |
351 | None, | |
352 | SDLRect::new( | |
353 | offset.x, | |
354 | (blocks - i) * size + offset.y, | |
355 | size as u32, | |
356 | size as u32, | |
357 | ), | |
358 | ) | |
359 | .unwrap(); | |
360 | canvas | |
361 | .copy( | |
362 | block, | |
363 | None, | |
364 | SDLRect::new( | |
365 | (blocks) * size + offset.x, | |
366 | (i) * size + offset.y, | |
367 | size as u32, | |
368 | size as u32, | |
369 | ), | |
370 | ) | |
371 | .unwrap(); | |
372 | } | |
373 | } | |
374 | ||
375 | /* draw mario */ { | |
376 | let size = 64; | |
377 | let offset = point!( | |
378 | (self.screen.width as i32 - size) / 2, | |
379 | (self.screen.height as i32 - size) / 2 | |
380 | ); | |
381 | let radius = 110.0 + size as f32 * 0.5; | |
382 | let angle = (self.mario_angle as f32 - 90.0) * PI / 180.0; | |
383 | let offset2 = point!((angle.cos() * radius) as i32, (angle.sin() * radius) as i32); | |
384 | canvas | |
385 | .copy_ex( | |
386 | sprites.get("mario"), | |
387 | None, | |
388 | SDLRect::new( | |
389 | offset.x + offset2.x, | |
390 | offset.y + offset2.y, | |
391 | size as u32, | |
392 | size as u32, | |
393 | ), | |
394 | self.mario_angle, | |
395 | sdl2::rect::Point::new(size / 2, size / 2), | |
396 | false, | |
397 | false, | |
398 | ) | |
399 | .unwrap(); | |
400 | self.mario_angle = (self.mario_angle + 1.0) % 360.0; | |
401 | } | |
402 | ||
403 | /* draw circles and ellipses*/ { | |
404 | let p = point!((self.screen.width / 2) as i16, (self.screen.height / 2) as i16); | |
405 | canvas | |
406 | .circle(p.x, p.y, 100, Color::RGB(255, 255, 255)) | |
407 | .unwrap(); | |
408 | canvas | |
409 | .aa_circle(p.x, p.y, 110, Color::RGB(255, 255, 255)) | |
410 | .unwrap(); | |
411 | canvas | |
412 | .ellipse(p.x, p.y, 50, 100, Color::RGB(255, 255, 255)) | |
413 | .unwrap(); | |
414 | canvas | |
415 | .aa_ellipse(p.x, p.y, 110, 55, Color::RGB(255, 255, 255)) | |
416 | .unwrap(); | |
417 | } | |
418 | ||
93679b27 | 419 | for b in &self.bolls { |
95e3e10d TW |
420 | b.draw(canvas, self.boll_size); |
421 | } | |
422 | } | |
423 | ||
424 | fn leave(&self) { | |
425 | println!("number of bolls: {}", self.bolls.len()); | |
426 | } | |
427 | ||
428 | fn on_event(&mut self, event: Event) { | |
429 | match event { | |
6ba7aef1 TW |
430 | Event::KeyDown { |
431 | keycode: Some(Keycode::KpPlus), | |
432 | .. | |
433 | } => self.boll_size = std::cmp::min(self.boll_size + 1, 32), | |
434 | Event::KeyDown { | |
435 | keycode: Some(Keycode::KpMinus), | |
436 | .. | |
437 | } => self.boll_size = std::cmp::max(self.boll_size - 1, 1), | |
438 | Event::MouseMotion { x, y, .. } => self.bolls.push(Box::new(CircleBoll::new( | |
439 | point!(x as f64, y as f64), | |
440 | point!(0.0, 0.0), | |
441 | ))), | |
95e3e10d TW |
442 | _ => {} |
443 | } | |
444 | } | |
445 | } |