Commit | Line | Data |
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296187ca TW |
1 | extern crate rand; |
2 | extern crate sdl2; | |
3 | extern crate time; | |
4 | ||
5 | use std::collections::hash_map::RandomState; | |
6 | use std::collections::HashMap; | |
7 | use std::f32::consts::PI; | |
8 | ||
9 | use rand::Rng; | |
10 | use sdl2::event::Event; | |
11 | use sdl2::EventPump; | |
12 | use sdl2::gfx::primitives::DrawRenderer; | |
13 | use sdl2::image::LoadTexture; | |
14 | use sdl2::keyboard::Keycode; | |
15 | use sdl2::pixels::Color; | |
16 | use sdl2::rect::Rect; | |
17 | use sdl2::render::BlendMode; | |
18 | use sdl2::render::Canvas; | |
19 | use sdl2::render::Texture; | |
20 | use sdl2::render::TextureCreator; | |
21 | use sdl2::video::Window; | |
22 | use sdl2::video::WindowContext; | |
23 | use time::PreciseTime; | |
24 | ||
25 | use boll::Boll; | |
26 | use common::Point2D; | |
27 | ||
28 | #[macro_use] mod common; | |
29 | mod boll; | |
30 | ||
31 | const SCREEN_WIDTH: u32 = 1280; | |
32 | const SCREEN_HEIGHT: u32 = (SCREEN_WIDTH as f64 * (1440.0 / 2560.0)) as u32; | |
33 | const FPS: u32 = 60; | |
34 | const NS_PER_FRAME: u32 = 1_000_000_000 / FPS; | |
35 | ||
36 | fn init() -> (Canvas<Window>, EventPump) { | |
37 | let context = sdl2::init().unwrap(); | |
38 | let video = context.video().unwrap(); | |
39 | let _image_context = sdl2::image::init(sdl2::image::InitFlag::PNG).unwrap(); | |
40 | let window = video.window("SDL test", SCREEN_WIDTH, SCREEN_HEIGHT) | |
41 | .position_centered() | |
42 | .opengl() | |
43 | .build() | |
44 | .unwrap(); | |
45 | context.mouse().show_cursor(false); | |
46 | let mut canvas = window.into_canvas().build().unwrap(); | |
47 | canvas.set_blend_mode(BlendMode::Add); | |
48 | canvas.set_draw_color(Color::RGB(0, 0, 0)); | |
49 | canvas.clear(); | |
50 | canvas.present(); | |
51 | let event_pump = context.event_pump().unwrap(); | |
52 | (canvas, event_pump) | |
53 | } | |
54 | ||
55 | fn load_textures(texture_creator: &TextureCreator<WindowContext>) -> HashMap<&str, Texture, RandomState> { | |
56 | let mut textures = HashMap::new(); | |
57 | textures.insert("block", texture_creator.load_texture("res/block.bmp").unwrap()); | |
58 | textures.insert("mario", texture_creator.load_texture("res/mario-trans.png").unwrap()); | |
59 | textures | |
60 | } | |
61 | ||
62 | fn main() { | |
63 | println!("starting..."); | |
64 | let (mut canvas, mut event_pump) = init(); | |
65 | ||
66 | let mut frame_count: u64 = 0; | |
67 | let mut fps_time = PreciseTime::now(); | |
68 | ||
69 | let mut bolls: Vec<Boll> = Vec::new(); | |
70 | let mut boll_size = 1; | |
71 | ||
72 | let texture_creator = canvas.texture_creator(); | |
73 | let textures = load_textures(&texture_creator); | |
74 | let mut mario_angle = 0.0; | |
75 | ||
76 | 'running: loop { | |
77 | let loop_start = PreciseTime::now(); | |
78 | canvas.set_draw_color(Color::RGB(0, 0, 0)); | |
79 | canvas.clear(); | |
80 | { | |
81 | let blocks = 20; | |
82 | let size = 32; | |
83 | let offset = point!((SCREEN_WIDTH as i32 - (blocks + 1) * size) / 2, (SCREEN_HEIGHT as i32 - (blocks + 1) * size) / 2); | |
84 | for i in 0..blocks { | |
85 | canvas.copy(&(textures.get("block").unwrap()), None, Rect::new((i) * size + offset.x, (0) * size + offset.y, size as u32, size as u32)).unwrap(); | |
86 | canvas.copy(&(textures.get("block").unwrap()), None, Rect::new((blocks - i) * size + offset.x, (blocks) * size + offset.y, size as u32, size as u32)).unwrap(); | |
87 | canvas.copy(&(textures.get("block").unwrap()), None, Rect::new((0) * size + offset.x, (blocks - i) * size + offset.y, size as u32, size as u32)).unwrap(); | |
88 | canvas.copy(&(textures.get("block").unwrap()), None, Rect::new((blocks) * size + offset.x, (i) * size + offset.y, size as u32, size as u32)).unwrap(); | |
89 | } | |
90 | } | |
91 | { | |
92 | let size = 64; | |
93 | let offset = point!((SCREEN_WIDTH as i32 - size) / 2, (SCREEN_HEIGHT as i32 - size) / 2); | |
94 | let radius = 110.0 + size as f32 * 0.5; | |
95 | let angle = (mario_angle as f32 - 90.0) * PI / 180.0; | |
96 | let offset2 = point!((angle.cos() * radius) as i32, (angle.sin() * radius) as i32); | |
97 | canvas.copy_ex(&(textures.get("mario").unwrap()), 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(); | |
98 | mario_angle += 1.0; | |
99 | if mario_angle >= 360.0 { mario_angle -= 360.0 } | |
100 | } | |
101 | { | |
102 | let p = point!((SCREEN_WIDTH / 2) as i16, (SCREEN_HEIGHT / 2) as i16); | |
103 | canvas.circle(p.x, p.y, 100, Color::RGB(255, 255, 255)).unwrap(); | |
104 | canvas.aa_circle(p.x, p.y, 110, Color::RGB(255, 255, 255)).unwrap(); | |
105 | canvas.ellipse(p.x, p.y, 50, 100, Color::RGB(255, 255, 255)).unwrap(); | |
106 | canvas.aa_ellipse(p.x, p.y, 110, 55, Color::RGB(255, 255, 255)).unwrap(); | |
107 | } | |
108 | ||
109 | for b in &mut bolls { | |
110 | b.update(); | |
111 | b.draw(&mut canvas, boll_size); | |
112 | } | |
113 | ||
114 | // window.gl_swap_window(); | |
115 | for event in event_pump.poll_iter() { | |
116 | match event { | |
117 | Event::Quit { .. } | Event::KeyDown { keycode: Some(Keycode::Escape), .. } => { | |
118 | break 'running; | |
119 | } | |
120 | Event::KeyDown { keycode: Some(Keycode::F11), .. } => { | |
121 | canvas.window_mut() | |
122 | .set_fullscreen(sdl2::video::FullscreenType::True).unwrap(); | |
123 | } | |
124 | Event::KeyDown { keycode: Some(Keycode::KpPlus), .. } => { boll_size = std::cmp::min(boll_size + 1, 32) } | |
125 | Event::KeyDown { keycode: Some(Keycode::KpMinus), .. } => { boll_size = std::cmp::max(boll_size - 1, 1) } | |
126 | Event::MouseMotion { x, y, .. } => { bolls.push(Boll { | |
127 | pos: point!(x as f64, y as f64), | |
128 | vel: point!(0.0, 0.0), | |
129 | }) } | |
130 | _ => {} | |
131 | } | |
132 | } | |
133 | canvas.present(); | |
134 | ||
135 | match loop_start.to(PreciseTime::now()).num_nanoseconds() { | |
136 | Some(ns) if ns < (NS_PER_FRAME - 50_0000) as i64 => { change_boll_count(&mut bolls, 100) } | |
137 | Some(ns) if ns > (NS_PER_FRAME + 50_0000) as i64 => { change_boll_count(&mut bolls, -100) } | |
138 | _ => {} | |
139 | } | |
140 | ||
141 | frame_count += 1; | |
142 | if frame_count == FPS as u64 { | |
143 | let duration = fps_time.to(PreciseTime::now()).num_nanoseconds().unwrap() as f64 / 1_000_000_000.0; | |
144 | println!("fps: {}", frame_count as f64 / duration); | |
145 | frame_count = 0; | |
146 | fps_time = PreciseTime::now(); | |
147 | } | |
148 | } | |
149 | ||
150 | println!("number of bolls: {}", bolls.len()); | |
151 | } | |
152 | ||
153 | fn change_boll_count(mut bolls: &mut Vec<Boll>, delta: i32) { | |
154 | if delta > 0 { | |
155 | for _i in 0..delta { | |
156 | add_boll(&mut bolls); | |
157 | } | |
158 | } else if delta < 0 { | |
159 | for _i in 0..delta { | |
160 | bolls.pop(); | |
161 | } | |
162 | } | |
163 | } | |
164 | ||
165 | fn add_boll(bolls: &mut Vec<Boll>) { | |
166 | let mut rng = rand::thread_rng(); | |
167 | bolls.push(Boll { | |
168 | pos: point!(rng.gen_range(0, SCREEN_WIDTH) as f64, rng.gen_range(0, SCREEN_HEIGHT) as f64), | |
169 | vel: point!(rng.gen_range(-2.0, 2.0), rng.gen_range(-2.0, 2.0)), | |
170 | }); | |
171 | } |