5 use std::f32::consts::PI;
8 use sdl2::event::Event;
10 use sdl2::gfx::primitives::DrawRenderer;
11 use sdl2::keyboard::Keycode;
12 use sdl2::pixels::Color;
14 use sdl2::render::BlendMode;
15 use sdl2::render::Canvas;
16 use sdl2::video::FullscreenType;
17 use sdl2::video::Window;
18 use time::PreciseTime;
20 use boll::{Boll, CircleBoll, SquareBoll};
22 use sprites::SpriteManager;
23 use sdl2::video::WindowContext;
24 use sdl2::render::TextureCreator;
26 #[macro_use] mod common;
30 const SCREEN_WIDTH: u32 = 1280;
31 const SCREEN_HEIGHT: u32 = (SCREEN_WIDTH as f64 * (1440.0 / 2560.0)) as u32;
33 const NS_PER_FRAME: u32 = 1_000_000_000 / FPS;
35 type Bollar = Vec<Box<dyn Boll>>;
37 fn init() -> (Canvas<Window>, EventPump) {
38 let context = sdl2::init().unwrap();
39 let video = context.video().unwrap();
40 let _image_context = sdl2::image::init(sdl2::image::InitFlag::PNG).unwrap();
41 let window = video.window("SDL test", SCREEN_WIDTH, SCREEN_HEIGHT)
46 context.mouse().show_cursor(false);
47 let mut canvas = window.into_canvas().build().unwrap();
48 canvas.set_blend_mode(BlendMode::Add);
49 canvas.set_draw_color(Color::RGB(0, 0, 0));
52 let event_pump = context.event_pump().unwrap();
56 fn load_sprites(texture_creator: &TextureCreator<WindowContext>) -> SpriteManager {
57 let mut texman = SpriteManager::new(texture_creator);
58 texman.load("block", "res/block.bmp");
59 texman.load("mario", "res/mario-trans.png");
64 println!("starting...");
65 let (mut canvas, mut event_pump) = init();
67 let mut frame_count: u64 = 0;
68 let mut fps_time = PreciseTime::now();
70 let mut bolls: Bollar = Bollar::new();
71 let mut boll_size = 1;
73 let texture_creator = canvas.texture_creator();
74 let sprites = load_sprites(&texture_creator);
75 let mut mario_angle = 0.0;
78 let loop_start = PreciseTime::now();
79 canvas.set_draw_color(Color::RGB(0, 0, 0));
84 let offset = point!((SCREEN_WIDTH as i32 - (blocks + 1) * size) / 2, (SCREEN_HEIGHT as i32 - (blocks + 1) * size) / 2);
86 canvas.copy(sprites.get("block"), None, Rect::new((i) * size + offset.x, (0) * size + offset.y, size as u32, size as u32)).unwrap();
87 canvas.copy(sprites.get("block"), None, Rect::new((blocks - i) * size + offset.x, (blocks) * size + offset.y, size as u32, size as u32)).unwrap();
88 canvas.copy(sprites.get("block"), None, Rect::new((0) * size + offset.x, (blocks - i) * size + offset.y, size as u32, size as u32)).unwrap();
89 canvas.copy(sprites.get("block"), None, Rect::new((blocks) * size + offset.x, (i) * size + offset.y, size as u32, size as u32)).unwrap();
94 let offset = point!((SCREEN_WIDTH as i32 - size) / 2, (SCREEN_HEIGHT as i32 - size) / 2);
95 let radius = 110.0 + size as f32 * 0.5;
96 let angle = (mario_angle as f32 - 90.0) * PI / 180.0;
97 let offset2 = point!((angle.cos() * radius) as i32, (angle.sin() * radius) as i32);
98 canvas.copy_ex(sprites.get("mario"), None, Rect::new(offset.x + offset2.x, offset.y + offset2.y, size as u32, size as u32), mario_angle, sdl2::rect::Point::new(size / 2, size / 2), false, false).unwrap();
100 if mario_angle >= 360.0 { mario_angle -= 360.0 }
103 let p = point!((SCREEN_WIDTH / 2) as i16, (SCREEN_HEIGHT / 2) as i16);
104 canvas.circle(p.x, p.y, 100, Color::RGB(255, 255, 255)).unwrap();
105 canvas.aa_circle(p.x, p.y, 110, Color::RGB(255, 255, 255)).unwrap();
106 canvas.ellipse(p.x, p.y, 50, 100, Color::RGB(255, 255, 255)).unwrap();
107 canvas.aa_ellipse(p.x, p.y, 110, 55, Color::RGB(255, 255, 255)).unwrap();
110 for b in &mut bolls {
112 b.draw(&mut canvas, boll_size);
115 // window.gl_swap_window();
116 for event in event_pump.poll_iter() {
118 Event::Quit { .. } | Event::KeyDown { keycode: Some(Keycode::Escape), .. } => {
121 Event::KeyDown { keycode: Some(Keycode::F11), .. } => {
122 match canvas.window().fullscreen_state() {
123 FullscreenType::Off => canvas.window_mut().set_fullscreen(FullscreenType::Desktop),
124 _ => canvas.window_mut().set_fullscreen(FullscreenType::Off)
127 Event::KeyDown { keycode: Some(Keycode::KpPlus), .. } => { boll_size = std::cmp::min(boll_size + 1, 32) }
128 Event::KeyDown { keycode: Some(Keycode::KpMinus), .. } => { boll_size = std::cmp::max(boll_size - 1, 1) }
129 Event::MouseMotion { x, y, .. } => {
130 bolls.push(Box::new(CircleBoll::new(
131 point!(x as f64, y as f64),
140 match loop_start.to(PreciseTime::now()).num_nanoseconds() {
141 Some(ns) if ns < (NS_PER_FRAME - 50_0000) as i64 => { change_boll_count(&mut bolls, 100) }
142 Some(ns) if ns > (NS_PER_FRAME + 50_0000) as i64 => { change_boll_count(&mut bolls, -100) }
147 if frame_count == FPS as u64 {
148 let duration = fps_time.to(PreciseTime::now()).num_nanoseconds().unwrap() as f64 / 1_000_000_000.0;
149 println!("fps: {}", frame_count as f64 / duration);
151 fps_time = PreciseTime::now();
155 println!("number of bolls: {}", bolls.len());
158 fn change_boll_count(mut bolls: &mut Bollar, delta: i32) {
161 add_boll(&mut bolls);
163 } else if delta < 0 {
170 fn add_boll(bolls: &mut Bollar) {
171 let mut rng = rand::thread_rng();
172 bolls.push(Box::new(SquareBoll {
173 pos: point!(rng.gen_range(0, SCREEN_WIDTH) as f64, rng.gen_range(0, SCREEN_HEIGHT) as f64),
174 vel: point!(rng.gen_range(-2.0, 2.0), rng.gen_range(-2.0, 2.0)),