forked from karx/catbox
94 lines
2.8 KiB
Markdown
94 lines
2.8 KiB
Markdown
# cat-box
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[](https://crates.io/crates/cat-box)
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[](https://docs.rs/cat-box)
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[](./LICENSE)
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Work in progress game engine, inspired by [arcade](https://arcade.academy/).
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## Getting started
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Add `cat-box` to your `Cargo.toml`, and then follow the example below. Read [the documentation](https://docs.rs/cat-box/latest/cat_box/) for more info.
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```rs
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use cat_box::{draw_text, Game, Sprite, SpriteCollection, get_mouse_state, get_keyboard_state};
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use sdl2::keyboard::Scancode;
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fn main() {
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let game = Game::new("catbox demo", 1000, 800);
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let mut i = 0u8;
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let mut s = Sprite::new("duck.png", 500, 400).unwrap();
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let mut s2 = Sprite::new("duck.png", 400, 500).unwrap();
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let mut coll = SpriteCollection::new();
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for n in 0..10 {
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for o in 0..8 {
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let x = Sprite::new("duck.png", n * 100, o * 100).unwrap();
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coll.push(x);
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}
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}
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game.run(|ctx| {
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i = (i + 1) % 255;
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ctx.set_background_colour(i as u8, 64, 255);
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draw_text(
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ctx,
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format!("i is {}", i),
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"MesloLGS NF Regular.ttf",
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72,
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(300, 300),
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cat_box::TextMode::Shaded {
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foreground: (255, 255, 255),
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background: (0, 0, 0),
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},
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)
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.unwrap();
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let (start_x, start_y) = s.position();
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let m = get_mouse_state(ctx);
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let x_diff = m.x - start_x;
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let y_diff = m.y - start_y;
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let angle = (y_diff as f64).atan2(x_diff as f64);
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s.set_angle(angle.to_degrees());
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for spr in coll.iter() {
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let (start_x, start_y) = spr.position();
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let m = get_mouse_state(ctx);
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let x_diff = m.x - start_x;
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let y_diff = m.y - start_y;
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let angle = (y_diff as f64).atan2(x_diff as f64);
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spr.set_angle(angle.to_degrees());
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}
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let keys = get_keyboard_state(ctx).keys;
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for key in keys {
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let offset = match key {
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Scancode::Escape => {
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game.terminate();
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(0, 0)
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},
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Scancode::W | Scancode::Up => (0, 5),
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Scancode::S | Scancode::Down => (0, -5),
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Scancode::A | Scancode::Left => (-5, 0),
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Scancode::D | Scancode::Right => (5, 0),
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_ => (0, 0),
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};
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s.translate(offset);
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for spr in coll.iter() {
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spr.translate(offset);
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}
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}
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s2.draw(ctx).unwrap();
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s.draw(ctx).unwrap();
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coll.draw(ctx).unwrap();
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})
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.unwrap();
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}
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``` |