| 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, SquareBoll}; |
| 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 | type Bollar = Vec<Box<dyn Boll>>; |
| 37 | |
| 38 | fn init() -> (Canvas<Window>, EventPump) { |
| 39 | let context = sdl2::init().unwrap(); |
| 40 | let video = context.video().unwrap(); |
| 41 | let _image_context = sdl2::image::init(sdl2::image::InitFlag::PNG).unwrap(); |
| 42 | let window = video.window("SDL test", SCREEN_WIDTH, SCREEN_HEIGHT) |
| 43 | .position_centered() |
| 44 | .opengl() |
| 45 | .build() |
| 46 | .unwrap(); |
| 47 | context.mouse().show_cursor(false); |
| 48 | let mut canvas = window.into_canvas().build().unwrap(); |
| 49 | canvas.set_blend_mode(BlendMode::Add); |
| 50 | canvas.set_draw_color(Color::RGB(0, 0, 0)); |
| 51 | canvas.clear(); |
| 52 | canvas.present(); |
| 53 | let event_pump = context.event_pump().unwrap(); |
| 54 | (canvas, event_pump) |
| 55 | } |
| 56 | |
| 57 | fn load_textures(texture_creator: &TextureCreator<WindowContext>) -> HashMap<&str, Texture, RandomState> { |
| 58 | let mut textures = HashMap::new(); |
| 59 | textures.insert("block", texture_creator.load_texture("res/block.bmp").unwrap()); |
| 60 | textures.insert("mario", texture_creator.load_texture("res/mario-trans.png").unwrap()); |
| 61 | textures |
| 62 | } |
| 63 | |
| 64 | fn main() { |
| 65 | println!("starting..."); |
| 66 | let (mut canvas, mut event_pump) = init(); |
| 67 | |
| 68 | let mut frame_count: u64 = 0; |
| 69 | let mut fps_time = PreciseTime::now(); |
| 70 | |
| 71 | let mut bolls: Bollar = Bollar::new(); |
| 72 | let mut boll_size = 1; |
| 73 | |
| 74 | let texture_creator = canvas.texture_creator(); |
| 75 | let textures = load_textures(&texture_creator); |
| 76 | let mut mario_angle = 0.0; |
| 77 | |
| 78 | 'running: loop { |
| 79 | let loop_start = PreciseTime::now(); |
| 80 | canvas.set_draw_color(Color::RGB(0, 0, 0)); |
| 81 | canvas.clear(); |
| 82 | { |
| 83 | let blocks = 20; |
| 84 | let size = 32; |
| 85 | let offset = point!((SCREEN_WIDTH as i32 - (blocks + 1) * size) / 2, (SCREEN_HEIGHT as i32 - (blocks + 1) * size) / 2); |
| 86 | for i in 0..blocks { |
| 87 | canvas.copy(&(textures.get("block").unwrap()), None, Rect::new((i) * size + offset.x, (0) * size + offset.y, size as u32, size as u32)).unwrap(); |
| 88 | 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(); |
| 89 | 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(); |
| 90 | canvas.copy(&(textures.get("block").unwrap()), None, Rect::new((blocks) * size + offset.x, (i) * size + offset.y, size as u32, size as u32)).unwrap(); |
| 91 | } |
| 92 | } |
| 93 | { |
| 94 | let size = 64; |
| 95 | let offset = point!((SCREEN_WIDTH as i32 - size) / 2, (SCREEN_HEIGHT as i32 - size) / 2); |
| 96 | let radius = 110.0 + size as f32 * 0.5; |
| 97 | let angle = (mario_angle as f32 - 90.0) * PI / 180.0; |
| 98 | let offset2 = point!((angle.cos() * radius) as i32, (angle.sin() * radius) as i32); |
| 99 | 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(); |
| 100 | mario_angle += 1.0; |
| 101 | if mario_angle >= 360.0 { mario_angle -= 360.0 } |
| 102 | } |
| 103 | { |
| 104 | let p = point!((SCREEN_WIDTH / 2) as i16, (SCREEN_HEIGHT / 2) as i16); |
| 105 | canvas.circle(p.x, p.y, 100, Color::RGB(255, 255, 255)).unwrap(); |
| 106 | canvas.aa_circle(p.x, p.y, 110, Color::RGB(255, 255, 255)).unwrap(); |
| 107 | canvas.ellipse(p.x, p.y, 50, 100, Color::RGB(255, 255, 255)).unwrap(); |
| 108 | canvas.aa_ellipse(p.x, p.y, 110, 55, Color::RGB(255, 255, 255)).unwrap(); |
| 109 | } |
| 110 | |
| 111 | for b in &mut bolls { |
| 112 | b.update(); |
| 113 | b.draw(&mut canvas, boll_size); |
| 114 | } |
| 115 | |
| 116 | // window.gl_swap_window(); |
| 117 | for event in event_pump.poll_iter() { |
| 118 | match event { |
| 119 | Event::Quit { .. } | Event::KeyDown { keycode: Some(Keycode::Escape), .. } => { |
| 120 | break 'running; |
| 121 | } |
| 122 | Event::KeyDown { keycode: Some(Keycode::F11), .. } => { |
| 123 | canvas.window_mut() |
| 124 | .set_fullscreen(sdl2::video::FullscreenType::True).unwrap(); |
| 125 | } |
| 126 | Event::KeyDown { keycode: Some(Keycode::KpPlus), .. } => { boll_size = std::cmp::min(boll_size + 1, 32) } |
| 127 | Event::KeyDown { keycode: Some(Keycode::KpMinus), .. } => { boll_size = std::cmp::max(boll_size - 1, 1) } |
| 128 | Event::MouseMotion { x, y, .. } => { bolls.push(Box::new(SquareBoll { |
| 129 | pos: point!(x as f64, y as f64), |
| 130 | vel: point!(0.0, 0.0), |
| 131 | })) } |
| 132 | _ => {} |
| 133 | } |
| 134 | } |
| 135 | canvas.present(); |
| 136 | |
| 137 | match loop_start.to(PreciseTime::now()).num_nanoseconds() { |
| 138 | Some(ns) if ns < (NS_PER_FRAME - 50_0000) as i64 => { change_boll_count(&mut bolls, 100) } |
| 139 | Some(ns) if ns > (NS_PER_FRAME + 50_0000) as i64 => { change_boll_count(&mut bolls, -100) } |
| 140 | _ => {} |
| 141 | } |
| 142 | |
| 143 | frame_count += 1; |
| 144 | if frame_count == FPS as u64 { |
| 145 | let duration = fps_time.to(PreciseTime::now()).num_nanoseconds().unwrap() as f64 / 1_000_000_000.0; |
| 146 | println!("fps: {}", frame_count as f64 / duration); |
| 147 | frame_count = 0; |
| 148 | fps_time = PreciseTime::now(); |
| 149 | } |
| 150 | } |
| 151 | |
| 152 | println!("number of bolls: {}", bolls.len()); |
| 153 | } |
| 154 | |
| 155 | fn change_boll_count(mut bolls: &mut Bollar, delta: i32) { |
| 156 | if delta > 0 { |
| 157 | for _i in 0..delta { |
| 158 | add_boll(&mut bolls); |
| 159 | } |
| 160 | } else if delta < 0 { |
| 161 | for _i in 0..delta { |
| 162 | bolls.pop(); |
| 163 | } |
| 164 | } |
| 165 | } |
| 166 | |
| 167 | fn add_boll(bolls: &mut Bollar) { |
| 168 | let mut rng = rand::thread_rng(); |
| 169 | bolls.push(Box::new(SquareBoll { |
| 170 | pos: point!(rng.gen_range(0, SCREEN_WIDTH) as f64, rng.gen_range(0, SCREEN_HEIGHT) as f64), |
| 171 | vel: point!(rng.gen_range(-2.0, 2.0), rng.gen_range(-2.0, 2.0)), |
| 172 | })); |
| 173 | } |