Commit | Line | Data |
---|---|---|
6ba7aef1 | 1 | use boll::*; |
1f42d724 | 2 | use common::{Point, Dimension}; |
3f344b63 | 3 | use core::controller::ControllerManager; |
6566d7e5 | 4 | use core::render::Renderer; |
6ba7aef1 | 5 | use point; // defined in common, but loaded from main... |
95e3e10d | 6 | use rand::Rng; |
541aee90 | 7 | use sdl2::event::{Event, WindowEvent}; |
95e3e10d | 8 | use sdl2::keyboard::Keycode; |
6ba7aef1 | 9 | use sdl2::rect::Rect as SDLRect; |
6566d7e5 | 10 | use sdl2::video::SwapInterval; |
6ba7aef1 | 11 | use sdl2::{EventPump, VideoSubsystem}; |
3bfea951 | 12 | use sprites::SpriteManager; |
6ba7aef1 | 13 | use std::f32::consts::PI; |
902b2b31 | 14 | use time::{Duration, Instant, prelude::*}; |
95e3e10d | 15 | |
6ba7aef1 TW |
16 | const FPS: u32 = 60; |
17 | const NS_PER_FRAME: u32 = 1_000_000_000 / FPS; | |
18 | ||
6edafdc0 TW |
19 | #[derive(Default)] |
20 | pub struct AppBuilder { | |
1f42d724 | 21 | resolution: Dimension<u16>, |
6edafdc0 TW |
22 | state: Option<Box<dyn AppState>>, |
23 | title: Option<String>, | |
3bfea951 TW |
24 | } |
25 | ||
6edafdc0 TW |
26 | impl AppBuilder { |
27 | pub fn with_resolution(mut self, width: u16, height: u16) -> Self { | |
1f42d724 | 28 | self.resolution = Dimension { width, height }; |
6ba7aef1 | 29 | self |
6edafdc0 TW |
30 | } |
31 | ||
6edafdc0 | 32 | pub fn with_state(mut self, state: Box<dyn AppState>) -> Self { |
6ba7aef1 TW |
33 | self.state = Some(state); |
34 | self | |
6edafdc0 TW |
35 | } |
36 | ||
37 | pub fn with_title(mut self, title: &str) -> Self { | |
6ba7aef1 TW |
38 | self.title = Some(title.to_string()); |
39 | self | |
6edafdc0 TW |
40 | } |
41 | ||
fea68d56 | 42 | pub fn build(self) -> Result<App, String> { |
3bfea951 | 43 | let context = sdl2::init().unwrap(); |
fea68d56 | 44 | sdl2::image::init(sdl2::image::InitFlag::PNG)?; |
6ba7aef1 | 45 | let video = context.video()?; |
b0566120 | 46 | //self.print_video_display_modes(&video); |
fea68d56 TW |
47 | |
48 | let window = video | |
6ba7aef1 TW |
49 | .window( |
50 | &self.title.unwrap(), | |
51 | self.resolution.width.into(), | |
52 | self.resolution.height.into(), | |
53 | ) | |
3bfea951 | 54 | .position_centered() |
6ba7aef1 TW |
55 | // .fullscreen() |
56 | // .fullscreen_desktop() | |
3bfea951 | 57 | .opengl() |
6ba7aef1 TW |
58 | .build() |
59 | .unwrap(); | |
3bfea951 | 60 | context.mouse().show_cursor(false); |
6edafdc0 | 61 | |
6566d7e5 TW |
62 | let canvas = window.into_canvas().build().unwrap(); |
63 | let sprites = SpriteManager::new(canvas.texture_creator()); | |
64 | let screen = canvas.output_size().unwrap(); | |
65 | let renderer = Renderer::new(canvas); | |
6edafdc0 | 66 | |
6ba7aef1 | 67 | video.gl_set_swap_interval(SwapInterval::VSync)?; |
fea68d56 TW |
68 | |
69 | let event_pump = context.event_pump()?; | |
6edafdc0 | 70 | |
fea68d56 | 71 | Ok(App { |
6566d7e5 | 72 | renderer, |
3bfea951 TW |
73 | event_pump, |
74 | sprites, | |
eb253fcc | 75 | states: vec!(self.state.unwrap_or_else(|| Box::new(ActiveState::new(screen)))), |
bf7b5671 | 76 | ctrl_man: ControllerManager::new(context.joystick()?, context.haptic()?), |
fea68d56 TW |
77 | }) |
78 | } | |
79 | ||
b0566120 | 80 | #[allow(dead_code)] |
fea68d56 | 81 | fn print_video_display_modes(&self, video: &VideoSubsystem) { |
6ba7aef1 TW |
82 | println!("video subsystem: {:?}", video); |
83 | println!("current_video_driver: {:?}", video.current_video_driver()); | |
84 | for display in 0..video.num_video_displays().unwrap() { | |
85 | println!( | |
86 | "=== display {} - {} ===", | |
87 | display, | |
88 | video.display_name(display).unwrap() | |
89 | ); | |
90 | println!( | |
91 | " display_bounds: {:?}", | |
92 | video.display_bounds(display).unwrap() | |
93 | ); | |
94 | println!( | |
95 | " num_display_modes: {:?}", | |
96 | video.num_display_modes(display).unwrap() | |
97 | ); | |
98 | println!( | |
99 | " desktop_display_mode: {:?}", | |
100 | video.desktop_display_mode(display).unwrap() | |
101 | ); | |
1f362f49 | 102 | let current = video.current_display_mode(display).unwrap(); |
6ba7aef1 TW |
103 | println!( |
104 | " current_display_mode: {:?}", | |
1f362f49 | 105 | current |
6ba7aef1 | 106 | ); |
1f362f49 TW |
107 | for idx in 0..video.num_display_modes(display).unwrap() { |
108 | let mode = video.display_mode(display, idx).unwrap(); | |
6ba7aef1 | 109 | println!( |
1f362f49 TW |
110 | " {}{:2}: {:?}", |
111 | if mode == current { "*" } else { " " }, | |
112 | idx, | |
113 | mode | |
6ba7aef1 TW |
114 | ); |
115 | } | |
116 | } | |
117 | println!("swap interval: {:?}", video.gl_get_swap_interval()); | |
3bfea951 | 118 | } |
6edafdc0 TW |
119 | } |
120 | ||
121 | pub struct App { | |
6566d7e5 | 122 | renderer: Renderer, |
fca4e4f0 TW |
123 | event_pump: EventPump, |
124 | sprites: SpriteManager, | |
eb253fcc | 125 | states: Vec<Box<dyn AppState>>, |
b0566120 | 126 | pub ctrl_man: ControllerManager, |
6edafdc0 TW |
127 | } |
128 | ||
129 | impl App { | |
98995f2b | 130 | #[allow(clippy::new_ret_no_self)] |
6edafdc0 | 131 | pub fn new() -> AppBuilder { |
6ba7aef1 | 132 | Default::default() |
6edafdc0 | 133 | } |
3bfea951 | 134 | |
1e322944 | 135 | pub fn load_sprites(&mut self, sprites: &[(&str, &str)]) { |
3bfea951 TW |
136 | for (name, file) in sprites { |
137 | self.sprites.load(name, file); | |
138 | } | |
139 | } | |
6ba7aef1 TW |
140 | |
141 | pub fn start(&mut self) { | |
902b2b31 | 142 | let mut last_time = Instant::now(); |
6ba7aef1 | 143 | |
3af74c40 | 144 | self.states[0].enter(&self.ctrl_man); |
b0566120 | 145 | |
eb253fcc TW |
146 | loop { |
147 | if let Some(change) = self.handle_events() { | |
148 | self.handle_state_change(change); | |
541aee90 | 149 | } |
6ba7aef1 | 150 | |
902b2b31 TW |
151 | let duration = Instant::now() - last_time; |
152 | last_time = Instant::now(); | |
153 | ||
bf7b5671 | 154 | self.ctrl_man.update(duration); |
eb253fcc TW |
155 | |
156 | if let Some(state) = self.states.last_mut() { | |
157 | if let Some(change) = state.update(duration) { | |
158 | self.handle_state_change(change); | |
159 | } | |
160 | } else { | |
161 | break; | |
162 | } | |
541aee90 TW |
163 | |
164 | self.render(); | |
6ba7aef1 | 165 | } |
eb253fcc | 166 | } |
6ba7aef1 | 167 | |
eb253fcc TW |
168 | fn handle_state_change(&mut self, change: StateChange) { |
169 | match change { | |
170 | StateChange::Push(mut state) => { | |
171 | // if let Some(s) = self.states.last_mut() { | |
172 | // s.pause(); | |
173 | // } | |
174 | state.enter(&mut self.ctrl_man); | |
175 | self.states.push(state); | |
176 | } | |
177 | StateChange::Pop => { | |
178 | if let Some(mut s) = self.states.pop() { | |
179 | s.leave(); | |
180 | } | |
181 | } | |
182 | StateChange::Exit => { | |
183 | while let Some(mut s) = self.states.pop() { | |
184 | s.leave(); | |
185 | } | |
186 | } | |
187 | } | |
6ba7aef1 | 188 | } |
541aee90 | 189 | |
eb253fcc | 190 | fn handle_events(&mut self) -> Option<StateChange> { |
541aee90 | 191 | for event in self.event_pump.poll_iter() { |
3f344b63 | 192 | self.ctrl_man.handle_event(&event); |
541aee90 TW |
193 | match event { |
194 | Event::Quit { .. } | |
195 | | Event::KeyDown { | |
196 | keycode: Some(Keycode::Escape), | |
197 | .. | |
198 | } => { | |
eb253fcc | 199 | return Some(StateChange::Pop) |
541aee90 TW |
200 | } |
201 | Event::KeyDown { | |
202 | keycode: Some(Keycode::F11), | |
203 | .. | |
204 | } => { | |
6566d7e5 | 205 | self.renderer.toggle_fullscreen(); |
541aee90 TW |
206 | } |
207 | Event::Window { | |
208 | win_event: WindowEvent::Resized(x, y), | |
209 | .. | |
210 | } => { | |
211 | println!("window resized({}, {})", x, y) | |
212 | } | |
213 | Event::Window { | |
214 | win_event: WindowEvent::Maximized, | |
215 | .. | |
216 | } => { | |
217 | println!("window maximized") | |
218 | } | |
219 | Event::Window { | |
220 | win_event: WindowEvent::Restored, | |
221 | .. | |
222 | } => { | |
223 | println!("window restored") | |
224 | } | |
225 | Event::Window { | |
226 | win_event: WindowEvent::Enter, | |
227 | .. | |
228 | } => { | |
229 | println!("window enter") | |
230 | } | |
231 | Event::Window { | |
232 | win_event: WindowEvent::Leave, | |
233 | .. | |
234 | } => { | |
235 | println!("window leave") | |
236 | } | |
237 | Event::Window { | |
238 | win_event: WindowEvent::FocusGained, | |
239 | .. | |
240 | } => { | |
241 | println!("window focus gained") | |
242 | } | |
243 | Event::Window { | |
244 | win_event: WindowEvent::FocusLost, | |
245 | .. | |
246 | } => { | |
247 | println!("window focus lost") | |
248 | } | |
eb253fcc TW |
249 | _ => { |
250 | if let Some(state) = self.states.last_mut() { | |
251 | return state.handle_event(event) | |
252 | } else { | |
253 | return Some(StateChange::Exit) | |
254 | } | |
255 | }, | |
541aee90 TW |
256 | } |
257 | } | |
eb253fcc | 258 | None |
541aee90 TW |
259 | } |
260 | ||
261 | fn render(&mut self) { | |
6566d7e5 | 262 | self.renderer.clear(); |
eb253fcc | 263 | self.states.last_mut().unwrap().render(&mut self.renderer, &mut self.sprites); |
6566d7e5 | 264 | self.renderer.present(); |
541aee90 | 265 | } |
3bfea951 | 266 | } |
95e3e10d | 267 | |
eb253fcc TW |
268 | pub enum StateChange { |
269 | Push(Box<dyn AppState>), | |
270 | Pop, | |
271 | Exit, | |
272 | } | |
273 | ||
95e3e10d | 274 | pub trait AppState { |
a82a4d23 | 275 | fn enter(&mut self, ctrl_man: &ControllerManager); |
b0566120 | 276 | fn leave(&mut self); |
eb253fcc | 277 | fn update(&mut self, dt: Duration) -> Option<StateChange>; |
6566d7e5 | 278 | fn render(&mut self, renderer: &mut Renderer, sprites: &SpriteManager); |
eb253fcc | 279 | fn handle_event(&mut self, event: Event) -> Option<StateChange>; |
95e3e10d TW |
280 | } |
281 | ||
282 | type Bollar = Vec<Box<dyn Boll>>; | |
283 | ||
541aee90 | 284 | #[derive(Default)] |
95e3e10d | 285 | pub struct ActiveState { |
1f42d724 | 286 | screen: Dimension<u32>, |
95e3e10d TW |
287 | bolls: Bollar, |
288 | boll_size: u32, | |
541aee90 | 289 | mario_angle: f64, |
95e3e10d TW |
290 | } |
291 | ||
292 | impl ActiveState { | |
77034de9 | 293 | pub fn new(screen: (u32, u32)) -> ActiveState { |
95e3e10d TW |
294 | ActiveState { |
295 | bolls: Bollar::new(), | |
296 | boll_size: 1, | |
1f42d724 | 297 | screen: Dimension::from(screen), |
541aee90 | 298 | ..Default::default() |
95e3e10d TW |
299 | } |
300 | } | |
301 | ||
302 | fn change_boll_count(&mut self, delta: i32) { | |
98995f2b | 303 | #[allow(clippy::comparison_chain)] |
95e3e10d TW |
304 | if delta > 0 { |
305 | for _i in 0..delta { | |
306 | self.add_boll(); | |
307 | } | |
308 | } else if delta < 0 { | |
5cbbebbe | 309 | for _i in 0..(-delta) { |
95e3e10d TW |
310 | self.bolls.pop(); |
311 | } | |
312 | } | |
313 | } | |
314 | ||
315 | fn add_boll(&mut self) { | |
316 | let mut rng = rand::thread_rng(); | |
317 | self.bolls.push(Box::new(SquareBoll { | |
6ba7aef1 | 318 | pos: point!( |
77034de9 TW |
319 | rng.gen_range(0, self.screen.width) as f64, |
320 | rng.gen_range(0, self.screen.height) as f64 | |
6ba7aef1 | 321 | ), |
95e3e10d TW |
322 | vel: point!(rng.gen_range(-2.0, 2.0), rng.gen_range(-2.0, 2.0)), |
323 | })); | |
324 | } | |
325 | } | |
326 | ||
327 | impl AppState for ActiveState { | |
a82a4d23 | 328 | fn enter(&mut self, _ctrl_man: &ControllerManager) {} |
b0566120 | 329 | |
eb253fcc | 330 | fn update(&mut self, dt: Duration) -> Option<StateChange> { |
93679b27 | 331 | for b in &mut self.bolls { |
95e3e10d TW |
332 | b.update(); |
333 | } | |
334 | ||
335 | match dt { | |
902b2b31 TW |
336 | ns if ns < (NS_PER_FRAME - 90_0000).nanoseconds() => self.change_boll_count(100), |
337 | ns if ns > (NS_PER_FRAME + 90_0000).nanoseconds() => self.change_boll_count(-100), | |
95e3e10d TW |
338 | _ => {} |
339 | } | |
eb253fcc TW |
340 | |
341 | None | |
95e3e10d TW |
342 | } |
343 | ||
6566d7e5 | 344 | fn render(&mut self, renderer: &mut Renderer, sprites: &SpriteManager) { |
541aee90 TW |
345 | /* draw square of blocks */ { |
346 | let blocks = 20; | |
347 | let size = 32; | |
348 | let offset = point!( | |
349 | (self.screen.width as i32 - (blocks + 1) * size) / 2, | |
350 | (self.screen.height as i32 - (blocks + 1) * size) / 2 | |
351 | ); | |
352 | let block = sprites.get("block"); | |
353 | for i in 0..blocks { | |
6566d7e5 TW |
354 | renderer |
355 | .blit( | |
541aee90 TW |
356 | block, |
357 | None, | |
358 | SDLRect::new((i) * size + offset.x, offset.y, size as u32, size as u32), | |
6566d7e5 TW |
359 | ); |
360 | renderer | |
361 | .blit( | |
541aee90 TW |
362 | block, |
363 | None, | |
364 | SDLRect::new( | |
365 | (blocks - i) * size + offset.x, | |
366 | (blocks) * size + offset.y, | |
367 | size as u32, | |
368 | size as u32, | |
369 | ), | |
6566d7e5 TW |
370 | ); |
371 | renderer | |
372 | .blit( | |
541aee90 TW |
373 | block, |
374 | None, | |
375 | SDLRect::new( | |
376 | offset.x, | |
377 | (blocks - i) * size + offset.y, | |
378 | size as u32, | |
379 | size as u32, | |
380 | ), | |
6566d7e5 TW |
381 | ); |
382 | renderer | |
383 | .blit( | |
541aee90 TW |
384 | block, |
385 | None, | |
386 | SDLRect::new( | |
387 | (blocks) * size + offset.x, | |
388 | (i) * size + offset.y, | |
389 | size as u32, | |
390 | size as u32, | |
391 | ), | |
6566d7e5 | 392 | ); |
541aee90 TW |
393 | } |
394 | } | |
395 | ||
396 | /* draw mario */ { | |
397 | let size = 64; | |
398 | let offset = point!( | |
399 | (self.screen.width as i32 - size) / 2, | |
400 | (self.screen.height as i32 - size) / 2 | |
401 | ); | |
402 | let radius = 110.0 + size as f32 * 0.5; | |
403 | let angle = (self.mario_angle as f32 - 90.0) * PI / 180.0; | |
404 | let offset2 = point!((angle.cos() * radius) as i32, (angle.sin() * radius) as i32); | |
6566d7e5 TW |
405 | renderer |
406 | .blit_ex( | |
541aee90 TW |
407 | sprites.get("mario"), |
408 | None, | |
409 | SDLRect::new( | |
410 | offset.x + offset2.x, | |
411 | offset.y + offset2.y, | |
412 | size as u32, | |
413 | size as u32, | |
414 | ), | |
415 | self.mario_angle, | |
416 | sdl2::rect::Point::new(size / 2, size / 2), | |
417 | false, | |
418 | false, | |
6566d7e5 | 419 | ); |
541aee90 TW |
420 | self.mario_angle = (self.mario_angle + 1.0) % 360.0; |
421 | } | |
422 | ||
423 | /* draw circles and ellipses*/ { | |
424 | let p = point!((self.screen.width / 2) as i16, (self.screen.height / 2) as i16); | |
6566d7e5 TW |
425 | renderer.circle(p, 100, (255, 255, 255)); |
426 | renderer.circle(p, 110, (255, 255, 255)); | |
427 | renderer.ellipse(p, (50, 100), (255, 255, 255)); | |
428 | renderer.ellipse(p, (110, 55), (255, 255, 255)); | |
541aee90 TW |
429 | } |
430 | ||
93679b27 | 431 | for b in &self.bolls { |
6566d7e5 | 432 | b.draw(renderer, self.boll_size); |
95e3e10d TW |
433 | } |
434 | } | |
435 | ||
b0566120 | 436 | fn leave(&mut self) { |
95e3e10d TW |
437 | println!("number of bolls: {}", self.bolls.len()); |
438 | } | |
439 | ||
eb253fcc | 440 | fn handle_event(&mut self, event: Event) -> Option<StateChange> { |
95e3e10d | 441 | match event { |
6ba7aef1 TW |
442 | Event::KeyDown { |
443 | keycode: Some(Keycode::KpPlus), | |
444 | .. | |
445 | } => self.boll_size = std::cmp::min(self.boll_size + 1, 32), | |
446 | Event::KeyDown { | |
447 | keycode: Some(Keycode::KpMinus), | |
448 | .. | |
449 | } => self.boll_size = std::cmp::max(self.boll_size - 1, 1), | |
450 | Event::MouseMotion { x, y, .. } => self.bolls.push(Box::new(CircleBoll::new( | |
451 | point!(x as f64, y as f64), | |
452 | point!(0.0, 0.0), | |
453 | ))), | |
95e3e10d TW |
454 | _ => {} |
455 | } | |
eb253fcc | 456 | None |
95e3e10d TW |
457 | } |
458 | } |