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//! The `graphics` crate contains the core functionality for
//! rendering using the `raylib` library.
use std::cell::RefCell;
use raylib::prelude::*;
use crate::assets::{AudioData, ImageData};
use crate::render::{FrameRendererImpl, Renderer};
mod assets;
mod render;
/// The `KeyCode` type represents different keys being pressed on the users keyboard
pub use raylib::consts::KeyboardKey as KeyCode;
/// The `Error` type used within this crate
pub type Error = Box<dyn std::error::Error>;
/// The `Result` type used witin this crate
pub type Result<T> = std::result::Result<T, crate::Error>;
/// The `Window` type represents the game window
#[derive(Debug)]
pub struct Window {
// persistant renderer
renderer: Renderer,
// core raylib handles
handle: RefCell<RaylibHandle>,
thread: RaylibThread,
// audio data/subsystem
audio: AudioData,
}
impl Window {
/// Instantiates a new window provided with the default
/// window `width`, `height`, and `title`.
///
/// # Examples
/// ```no_run
/// use graphics::Window;
///
/// let window = Window::new(800, 600, "Dungeon Crawl").unwrap();
/// ```
pub fn new(width: i32, height: i32, title: &str) -> crate::Result<Self> {
let (mut handle, thread) = raylib::init()
.size(width, height)
.title(title)
.resizable()
.log_level(TraceLogLevel::LOG_WARNING)
.vsync()
.build();
// load assets
let audio = AudioData::load()?;
let image = ImageData::load(&mut handle, &thread)?;
Ok(Self {
handle: RefCell::new(handle),
thread,
renderer: Renderer::new(image),
audio,
})
}
/// Returns if the window should be closed.
/// This usually means the 'x' button has been pressed.
pub fn is_open(&self) -> bool {
!self.handle.borrow().window_should_close()
}
/// Returns the per frame renderer for the game
///
/// # Examples
/// ```no_run
/// use graphics::Window;
///
/// let mut window = Window::new(800, 600, "Dungeon Crawl").unwrap();
/// let mut renderer = window.renderer();
/// ```
pub fn renderer(&mut self) -> Result<FrameRendererImpl<'_>> {
self.renderer.invoke(self.handle.get_mut(), &self.thread)
}
/// Returns the per frame delta time
pub fn delta_time(&self) -> f32 {
self.handle.borrow().get_frame_time()
}
/// Returns if the provided `KeyCode` has been pressed once
pub fn is_key_pressed(&self, key: KeyCode) -> bool {
self.handle.borrow().is_key_pressed(key)
}
/// Returns if the provided `KeyCode` is NOT currently pressed
pub fn is_key_up(&self, key: KeyCode) -> bool {
self.handle.borrow().is_key_up(key)
}
/// Returns if the provided `KeyCode` is currently pressed
pub fn is_key_down(&self, key: KeyCode) -> bool {
self.handle.borrow().is_key_down(key)
}
/// Get the last key pressed
pub fn get_key_pressed(&self) -> Option<KeyCode> {
self.handle.borrow_mut().get_key_pressed()
}
/// Get audio data for the window
pub fn audio(&self) -> &AudioData {
&self.audio
}
}
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