Remove sdl-demo
This commit is contained in:
parent
ae70571fc5
commit
4586369bde
GPG Key ID:
5FD0394ADBD72730
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[env]
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RESOURCE_DIR = { value = "rsc", relative = true }
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63
sdl-demo/Cargo.lock
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63
sdl-demo/Cargo.lock
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "bitflags"
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version = "1.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
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[[package]]
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name = "cfg-if"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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[[package]]
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name = "lazy_static"
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version = "1.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
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[[package]]
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name = "libc"
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version = "0.2.134"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "329c933548736bc49fd575ee68c89e8be4d260064184389a5b77517cddd99ffb"
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[[package]]
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name = "sdl-demo"
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version = "0.1.0"
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dependencies = [
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"sdl2",
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]
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[[package]]
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name = "sdl2"
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version = "0.35.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f7959277b623f1fb9e04aea73686c3ca52f01b2145f8ea16f4ff30d8b7623b1a"
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dependencies = [
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"bitflags",
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"lazy_static",
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"libc",
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"sdl2-sys",
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]
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[[package]]
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name = "sdl2-sys"
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version = "0.35.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e3586be2cf6c0a8099a79a12b4084357aa9b3e0b0d7980e3b67aaf7a9d55f9f0"
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dependencies = [
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"cfg-if",
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"libc",
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"version-compare",
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]
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[[package]]
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name = "version-compare"
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version = "0.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fe88247b92c1df6b6de80ddc290f3976dbdf2f5f5d3fd049a9fb598c6dd5ca73"
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[package]
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name = "sdl-demo"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies.sdl2]
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version = "0.35"
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default-features = false
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features = [ "ttf", "image" ]
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Binary file not shown.
Binary file not shown.
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Before Width: | Height: | Size: 637 KiB |
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extern crate sdl2;
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use sdl2::image::LoadTexture;
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use sdl2::pixels::Color;
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use sdl2::event::Event;
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use sdl2::keyboard::Keycode;
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use sdl2::ttf;
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use sdl2::image;
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use sdl2::rect::Rect;
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const RESOURCE_DIR: &str = env!("RESOURCE_DIR");
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fn main() {
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let sdl_ctx = sdl2::init().unwrap_or_else(|_| {
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eprintln!("error: could not init sdl2");
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panic!()
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});
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let video_ctx = sdl_ctx.video().unwrap_or_else(|_| {
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eprintln!("error: could not init sdl2 video subsystem");
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panic!()
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});
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let ttf_ctx = ttf::init().unwrap_or_else(|_| {
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eprintln!("error: could not init sdl2 font subsystem");
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panic!()
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});
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let fira_code_path = RESOURCE_DIR.to_owned() + "/fonts/fira-code-regular.ttf";
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let fira_code = ttf_ctx.load_font(fira_code_path, 64).unwrap_or_else(|_| {
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eprintln!("error: could not load font");
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panic!()
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});
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let _ = image::init(image::InitFlag::PNG).unwrap_or_else(|_| {
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eprintln!("error: could not init sdl2 image subsystem");
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panic!()
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});
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let window = video_ctx.window("Rust SDL2 Demo", 1000, 1000)
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.position_centered().build().unwrap_or_else(|_| {
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eprintln!("error: could not create window");
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panic!()
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});
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let mut canvas = window.into_canvas().build().unwrap_or_else(|_| {
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eprintln!("error: could not create canvas for window");
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panic!()
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});
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draw_loop(&sdl_ctx, &mut canvas, &fira_code);
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}
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fn draw_loop(cxt: &sdl2::Sdl,
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canvas: &mut sdl2::render::WindowCanvas,
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font: &ttf::Font) {
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canvas.set_draw_color(Color::WHITE);
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canvas.clear();
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canvas.present();
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let texture_creator = canvas.texture_creator();
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let img_path = RESOURCE_DIR.to_owned() + "/img/ina.png";
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let img_png = texture_creator.load_texture(img_path).unwrap_or_else(|_| {
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eprintln!("error: could not load ina png");
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panic!()
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});
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let img_box = get_box_for_texture(canvas.window(), &img_png, 0.3);
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let mut event_pump = cxt.event_pump().unwrap();
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let mut color: u8 = 255;
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'game_loop: loop {
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let color1 = Color::RGB(color, color, color);
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let color2 = Color::RGB(255 - color, 255 - color, 255 - color);
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canvas.set_draw_color(color1);
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canvas.clear();
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canvas.set_draw_color(color2);
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let _ = canvas.fill_rect(Rect::new(100, 100, 800, 800));
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canvas.set_draw_color(color1);
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let _ = canvas.fill_rect(Rect::new(200, 200, 600, 600));
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canvas.set_draw_color(color2);
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let _ = canvas.fill_rect(Rect::new(300, 300, 400, 400));
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canvas.set_draw_color(color1);
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let _ = canvas.fill_rect(Rect::new(400, 400, 200, 200));
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canvas.set_draw_color(color2);
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let text_surround_box = get_box_for_text(canvas.window(), font, "SDL2 Rust Demo");
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let _ = canvas.fill_rect(text_surround_box);
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canvas.set_draw_color(color1);
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let _ = canvas.draw_rect(text_surround_box);
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let text_suface = font.render("SDL2 Rust Demo").solid(color1).unwrap();
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let text_texture = texture_creator.create_texture_from_surface(text_suface).unwrap();
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let _ = canvas.copy(&text_texture, None, text_surround_box);
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let _ = canvas.copy(&img_png, None, img_box);
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for evt in event_pump.poll_iter() {
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match evt {
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Event::Quit {..} |
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Event::KeyDown { keycode: Some(Keycode::Q), .. } |
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Event::KeyDown { keycode: Some(Keycode::Escape), .. } => break 'game_loop,
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Event::KeyDown { keycode: Some(Keycode::Equals), .. } => if color < 255 { color += 5 },
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Event::KeyDown { keycode: Some(Keycode::Minus), .. } => if color > 0 { color -= 5 },
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_ => {}
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}
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}
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canvas.present();
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}
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}
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fn get_box_for_text(win: &sdl2::video::Window, font: &ttf::Font, text: &str) -> Rect {
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let (ww, wh) = win.size();
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let (tw, th) = font.size_of(text).unwrap();
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let cx = (ww as f32 / 2.0) as i32;
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let cy = (wh as f32 / 2.0) as i32;
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Rect::new(
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cx - (tw as f32 / 2.0) as i32,
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cy - (th as f32 / 2.0) as i32,
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tw,
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th
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)
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}
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fn get_box_for_texture(win: &sdl2::video::Window, tex: &sdl2::render::Texture, scale: f32) -> Rect {
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let tq = tex.query();
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let tw = (tq.width as f32 * scale) as u32;
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let th = (tq.height as f32 * scale) as u32;
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let (ww, _) = win.size();
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Rect::new(
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((ww as f32 / 2.0) - (tw as f32 / 2.0)) as i32,
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10,
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tw,
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th
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)
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}
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