82 lines
1.8 KiB
Rust
82 lines
1.8 KiB
Rust
use std::cell::Cell;
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use sdl2::{
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render::Canvas,
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video::{Window, WindowBuildError},
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EventPump, IntegerOrSdlError,
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};
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pub use sdl2::event::Event;
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pub use sdl2::keyboard::Keycode;
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pub use sdl2::pixels::Color;
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#[derive(Debug)]
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pub struct CatboxError(String);
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impl From<WindowBuildError> for CatboxError {
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fn from(e: WindowBuildError) -> Self {
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CatboxError(format!("{}", e))
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}
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}
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impl From<String> for CatboxError {
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fn from(e: String) -> Self {
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CatboxError(e)
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}
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}
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impl From<IntegerOrSdlError> for CatboxError {
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fn from(e: IntegerOrSdlError) -> Self {
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CatboxError(format!("{}", e))
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}
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}
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pub type Result<T> = std::result::Result<T, CatboxError>;
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pub struct Game {
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pub title: String,
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pub width: u32,
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pub height: u32,
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stopped: Cell<bool>,
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}
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impl Game {
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pub fn new(title: &str, width: u32, height: u32) -> Self {
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Self {
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title: title.to_string(),
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width,
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height,
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stopped: Cell::new(false),
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}
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}
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pub fn run<F: Fn(&mut Canvas<Window>, Vec<Event>)>(&self, func: F) -> Result<()> {
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let sdl_context = sdl2::init()?;
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let video_subsystem = sdl_context.video()?;
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let window = video_subsystem
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.window(&self.title, self.width, self.height)
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.position_centered()
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.build()?;
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let mut canvas = window.into_canvas().build()?;
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let mut event_pump = sdl_context.event_pump()?;
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loop {
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if self.stopped.get() {
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break;
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}
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let events = event_pump.poll_iter().collect::<Vec<Event>>();
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func(&mut canvas, events);
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canvas.present();
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}
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Ok(())
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}
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pub fn terminate(&self) {
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self.stopped.set(true);
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}
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}
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