+++ /dev/null
-use boll::*;
-use common::{Point2D, Rect};
-use point; // defined in common, but loaded from main...
-use rand::Rng;
-use sdl2::event::{Event, WindowEvent};
-use sdl2::gfx::primitives::DrawRenderer;
-use sdl2::keyboard::Keycode;
-use sdl2::pixels::Color;
-use sdl2::rect::Rect as SDLRect;
-use sdl2::render::{BlendMode, Canvas};
-use sdl2::video::{FullscreenType, SwapInterval, Window};
-use sdl2::{EventPump, VideoSubsystem};
-use sprites::SpriteManager;
-use std::f32::consts::PI;
-use time::PreciseTime;
-
-pub type Nanoseconds = u64;
-
-const FPS: u32 = 60;
-const NS_PER_FRAME: u32 = 1_000_000_000 / FPS;
-
-#[derive(Default)]
-pub struct AppBuilder {
- resolution: Rect<u16>,
- state: Option<Box<dyn AppState>>,
- title: Option<String>,
-}
-
-impl AppBuilder {
- pub fn with_resolution(mut self, width: u16, height: u16) -> Self {
- self.resolution = Rect { width, height };
- self
- }
-
- pub fn with_state(mut self, state: Box<dyn AppState>) -> Self {
- self.state = Some(state);
- self
- }
-
- pub fn with_title(mut self, title: &str) -> Self {
- self.title = Some(title.to_string());
- self
- }
-
- pub fn build(self) -> Result<App, String> {
- let context = sdl2::init().unwrap();
- sdl2::image::init(sdl2::image::InitFlag::PNG)?;
- let video = context.video()?;
-
- self.print_video_display_modes(&video);
-
- let window = video
- .window(
- &self.title.unwrap(),
- self.resolution.width.into(),
- self.resolution.height.into(),
- )
- .position_centered()
- // .fullscreen()
- // .fullscreen_desktop()
- .opengl()
- .build()
- .unwrap();
- context.mouse().show_cursor(false);
-
- let mut canvas = window.into_canvas().build().unwrap();
- canvas.set_blend_mode(BlendMode::Add);
- canvas.set_draw_color(Color::RGB(0, 0, 0));
- canvas.clear();
- canvas.present();
-
- video.gl_set_swap_interval(SwapInterval::VSync)?;
-
- let event_pump = context.event_pump()?;
- let sprites = SpriteManager::new(canvas.texture_creator());
- let screen = canvas.output_size().unwrap();
-
- Ok(App {
- canvas,
- event_pump,
- sprites,
- state: self.state.unwrap_or_else(|| Box::new(ActiveState::new(screen))),
- })
- }
-
- fn print_video_display_modes(&self, video: &VideoSubsystem) {
- println!("video subsystem: {:?}", video);
- println!("current_video_driver: {:?}", video.current_video_driver());
- for display in 0..video.num_video_displays().unwrap() {
- println!(
- "=== display {} - {} ===",
- display,
- video.display_name(display).unwrap()
- );
- println!(
- " display_bounds: {:?}",
- video.display_bounds(display).unwrap()
- );
- println!(
- " num_display_modes: {:?}",
- video.num_display_modes(display).unwrap()
- );
- println!(
- " desktop_display_mode: {:?}",
- video.desktop_display_mode(display).unwrap()
- );
- let current = video.current_display_mode(display).unwrap();
- println!(
- " current_display_mode: {:?}",
- current
- );
- for idx in 0..video.num_display_modes(display).unwrap() {
- let mode = video.display_mode(display, idx).unwrap();
- println!(
- " {}{:2}: {:?}",
- if mode == current { "*" } else { " " },
- idx,
- mode
- );
- }
- }
- println!("swap interval: {:?}", video.gl_get_swap_interval());
- }
-}
-
-pub struct App {
- pub canvas: Canvas<Window>,
- pub event_pump: EventPump,
- pub sprites: SpriteManager,
- pub state: Box<dyn AppState>,
-}
-
-impl App {
- #[allow(clippy::new_ret_no_self)]
- pub fn new() -> AppBuilder {
- Default::default()
- }
-
- pub fn load_sprites(&mut self, sprites: &[(&str, &str)]) {
- for (name, file) in sprites {
- self.sprites.load(name, file);
- }
- }
-
- pub fn start(&mut self) {
- let mut frame_count: u64 = 0;
- let mut fps_time = PreciseTime::now();
- let mut last_time = PreciseTime::now();
-
- 'running: loop {
- if let Err(_) = self.handle_events() {
- break 'running;
- }
-
- let duration =
- last_time.to(PreciseTime::now()).num_nanoseconds().unwrap() as Nanoseconds;
- last_time = PreciseTime::now();
- self.state.update(duration);
-
- self.render();
-
- frame_count += 1;
- if frame_count == FPS as u64 {
- let duration = fps_time.to(PreciseTime::now()).num_nanoseconds().unwrap() as f64
- / 1_000_000_000.0;
- println!("fps: {}", frame_count as f64 / duration);
- frame_count = 0;
- fps_time = PreciseTime::now();
- }
- }
-
- self.state.leave();
- }
-
- fn handle_events(&mut self) -> Result<(), ()> {
- for event in self.event_pump.poll_iter() {
- match event {
- Event::Quit { .. }
- | Event::KeyDown {
- keycode: Some(Keycode::Escape),
- ..
- } => {
- return Err(())
- }
- Event::KeyDown {
- keycode: Some(Keycode::F11),
- ..
- } => {
- match self.canvas.window().fullscreen_state() {
- FullscreenType::Off => self
- .canvas
- .window_mut()
- .set_fullscreen(FullscreenType::Desktop),
- _ => self.canvas.window_mut().set_fullscreen(FullscreenType::Off),
- }
- .unwrap();
- }
- Event::Window {
- win_event: WindowEvent::Resized(x, y),
- ..
- } => {
- println!("window resized({}, {})", x, y)
- }
- Event::Window {
- win_event: WindowEvent::Maximized,
- ..
- } => {
- println!("window maximized")
- }
- Event::Window {
- win_event: WindowEvent::Restored,
- ..
- } => {
- println!("window restored")
- }
- Event::Window {
- win_event: WindowEvent::Enter,
- ..
- } => {
- println!("window enter")
- }
- Event::Window {
- win_event: WindowEvent::Leave,
- ..
- } => {
- println!("window leave")
- }
- Event::Window {
- win_event: WindowEvent::FocusGained,
- ..
- } => {
- println!("window focus gained")
- }
- Event::Window {
- win_event: WindowEvent::FocusLost,
- ..
- } => {
- println!("window focus lost")
- }
- _ => self.state.on_event(event),
- }
- }
- Ok(())
- }
-
- fn render(&mut self) {
- self.canvas.set_draw_color(Color::RGB(0, 0, 0));
- self.canvas.clear();
- self.state.render(&mut self.canvas, &mut self.sprites);
- self.canvas.present();
- }
-}
-
-pub trait AppState {
- fn update(&mut self, dt: Nanoseconds);
- fn render(&mut self, canvas: &mut Canvas<Window>, sprites: &mut SpriteManager);
- fn leave(&self);
- fn on_event(&mut self, event: Event);
-}
-
-type Bollar = Vec<Box<dyn Boll>>;
-
-#[derive(Default)]
-pub struct ActiveState {
- screen: Rect<u32>,
- bolls: Bollar,
- boll_size: u32,
- mario_angle: f64,
-}
-
-impl ActiveState {
- pub fn new(screen: (u32, u32)) -> ActiveState {
- ActiveState {
- bolls: Bollar::new(),
- boll_size: 1,
- screen: Rect::from(screen),
- ..Default::default()
- }
- }
-
- fn change_boll_count(&mut self, delta: i32) {
- #[allow(clippy::comparison_chain)]
- if delta > 0 {
- for _i in 0..delta {
- self.add_boll();
- }
- } else if delta < 0 {
- for _i in 0..(-delta) {
- self.bolls.pop();
- }
- }
- }
-
- fn add_boll(&mut self) {
- let mut rng = rand::thread_rng();
- self.bolls.push(Box::new(SquareBoll {
- pos: point!(
- rng.gen_range(0, self.screen.width) as f64,
- rng.gen_range(0, self.screen.height) as f64
- ),
- vel: point!(rng.gen_range(-2.0, 2.0), rng.gen_range(-2.0, 2.0)),
- }));
- }
-}
-
-impl AppState for ActiveState {
- fn update(&mut self, dt: Nanoseconds) {
- for b in &mut self.bolls {
- b.update();
- }
-
- match dt {
- ns if ns < (NS_PER_FRAME - 90_0000) as u64 => self.change_boll_count(100),
- ns if ns > (NS_PER_FRAME + 90_0000) as u64 => self.change_boll_count(-100),
- _ => {}
- }
- }
-
- fn render(&mut self, canvas: &mut Canvas<Window>, sprites: &mut SpriteManager) {
- /* draw square of blocks */ {
- let blocks = 20;
- let size = 32;
- let offset = point!(
- (self.screen.width as i32 - (blocks + 1) * size) / 2,
- (self.screen.height as i32 - (blocks + 1) * size) / 2
- );
- let block = sprites.get("block");
- for i in 0..blocks {
- canvas
- .copy(
- block,
- None,
- SDLRect::new((i) * size + offset.x, offset.y, size as u32, size as u32),
- )
- .unwrap();
- canvas
- .copy(
- block,
- None,
- SDLRect::new(
- (blocks - i) * size + offset.x,
- (blocks) * size + offset.y,
- size as u32,
- size as u32,
- ),
- )
- .unwrap();
- canvas
- .copy(
- block,
- None,
- SDLRect::new(
- offset.x,
- (blocks - i) * size + offset.y,
- size as u32,
- size as u32,
- ),
- )
- .unwrap();
- canvas
- .copy(
- block,
- None,
- SDLRect::new(
- (blocks) * size + offset.x,
- (i) * size + offset.y,
- size as u32,
- size as u32,
- ),
- )
- .unwrap();
- }
- }
-
- /* draw mario */ {
- let size = 64;
- let offset = point!(
- (self.screen.width as i32 - size) / 2,
- (self.screen.height as i32 - size) / 2
- );
- let radius = 110.0 + size as f32 * 0.5;
- let angle = (self.mario_angle as f32 - 90.0) * PI / 180.0;
- let offset2 = point!((angle.cos() * radius) as i32, (angle.sin() * radius) as i32);
- canvas
- .copy_ex(
- sprites.get("mario"),
- None,
- SDLRect::new(
- offset.x + offset2.x,
- offset.y + offset2.y,
- size as u32,
- size as u32,
- ),
- self.mario_angle,
- sdl2::rect::Point::new(size / 2, size / 2),
- false,
- false,
- )
- .unwrap();
- self.mario_angle = (self.mario_angle + 1.0) % 360.0;
- }
-
- /* draw circles and ellipses*/ {
- let p = point!((self.screen.width / 2) as i16, (self.screen.height / 2) as i16);
- canvas
- .circle(p.x, p.y, 100, Color::RGB(255, 255, 255))
- .unwrap();
- canvas
- .aa_circle(p.x, p.y, 110, Color::RGB(255, 255, 255))
- .unwrap();
- canvas
- .ellipse(p.x, p.y, 50, 100, Color::RGB(255, 255, 255))
- .unwrap();
- canvas
- .aa_ellipse(p.x, p.y, 110, 55, Color::RGB(255, 255, 255))
- .unwrap();
- }
-
- for b in &self.bolls {
- b.draw(canvas, self.boll_size);
- }
- }
-
- fn leave(&self) {
- println!("number of bolls: {}", self.bolls.len());
- }
-
- fn on_event(&mut self, event: Event) {
- match event {
- Event::KeyDown {
- keycode: Some(Keycode::KpPlus),
- ..
- } => self.boll_size = std::cmp::min(self.boll_size + 1, 32),
- Event::KeyDown {
- keycode: Some(Keycode::KpMinus),
- ..
- } => self.boll_size = std::cmp::max(self.boll_size - 1, 1),
- Event::MouseMotion { x, y, .. } => self.bolls.push(Box::new(CircleBoll::new(
- point!(x as f64, y as f64),
- point!(0.0, 0.0),
- ))),
- _ => {}
- }
- }
-}
Dolda2000 GitWeb / kaka / rust-sdl-test.git / blobdiff