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//! The `graphics` crate contains the core functionality for
//! rendering using the `raylib` library.
use std::cell::RefCell;
use std::error::Error;
use raylib::prelude::*;
use crate::assets::{Assets, AudioData};
use crate::render::{FrameInfo, 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 `Window` type represents the game window
#[derive(Debug)]
pub struct Window {
// core raylib handles
handle: RefCell<RaylibHandle>,
thread: RaylibThread,
// static assets
assets: Assets,
}
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) -> Result<Self, Box<dyn Error>> {
let (mut handle, thread) = raylib::init()
.size(width, height)
.title(title)
.resizable()
.log_level(TraceLogLevel::LOG_WARNING)
.vsync()
.build();
// we will now initalize all assets
let assets = Assets::load(&mut handle, &thread)?;
Ok(Self {
handle: RefCell::new(handle),
thread,
assets,
})
}
/// 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 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) -> Renderer<'_> {
let info = FrameInfo::new(self.handle.get_mut(), &self.assets.image);
let handle = self.handle.get_mut().begin_drawing(&self.thread);
Renderer::new(handle, info)
}
/// 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.assets.audio
}
}
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