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|
//! The `graphics` crate contains the core functionality for
//! rendering using the `raylib` library.
use std::borrow::Cow;
use std::cell::RefCell;
use dungeon::Dungeon;
use raylib::prelude::*;
use crate::audio::Audio;
use crate::render::Renderer;
mod audio;
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 `WindowBuilder` type allows setting partial options for the window
#[derive(Debug)]
pub struct WindowBuilder<'a> {
title: Cow<'a, str>,
width: u16,
height: u16,
vsync: bool,
verbose: bool,
}
impl<'a> WindowBuilder<'a> {
/// Default window builder
pub fn new() -> Self {
Self::default()
}
/// Set the window title
pub fn title(&mut self, title: impl Into<Cow<'a, str>>) -> &mut Self {
self.title = title.into();
self
}
/// Set the default window width
pub fn width(&mut self, width: u16) -> &mut Self {
self.width = width;
self
}
/// Set the default window height
pub fn height(&mut self, height: u16) -> &mut Self {
self.height = height;
self
}
/// Toggle vsync support
pub fn vsync(&mut self, vsync: bool) -> &mut Self {
self.vsync = vsync;
self
}
/// Toggle verbose logging
pub fn verbose(&mut self, verbose: bool) -> &mut Self {
self.verbose = verbose;
self
}
/// Build the window
pub fn build(&self) -> crate::Result<Window> {
let mut builder = raylib::init();
// Set raylib args from builder
builder.size(self.width.into(), self.height.into());
builder.title(&self.title);
builder.resizable();
if self.vsync {
builder.vsync();
}
if self.verbose {
builder.log_level(TraceLogLevel::LOG_INFO);
} else {
builder.log_level(TraceLogLevel::LOG_WARNING);
}
// Set highdpi for wayland (this is only an issue for glfw)
// Rust binding to not make this accessable
#[cfg(feature = "wayland")]
#[cfg(not(feature = "sdl"))]
unsafe {
use ffi::ConfigFlags::*;
ffi::SetConfigFlags(FLAG_WINDOW_HIGHDPI as u32);
}
let (mut handle, thread) = builder.build();
if !handle.is_window_ready() {
return Err("Raylib window not ready!".into());
}
// update window min size
handle.set_window_min_size(self.width.into(), self.height.into());
// load audio
let audio = Audio::load()?;
// load renderer
let renderer = Renderer::new(&mut handle, &thread)?;
Ok(Window {
handle: RefCell::new(handle),
thread,
renderer,
audio,
})
}
}
impl Default for WindowBuilder<'_> {
fn default() -> Self {
Self {
title: Cow::Borrowed("Dungeon Crawl"),
width: render::RENDER_WIDTH,
height: render::RENDER_HEIGHT,
vsync: false,
verbose: false,
}
}
}
/// 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: Audio,
}
impl Window {
/// 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()
}
/// Draws the next ingame frame
pub fn draw_frame(&mut self, dungeon: &Dungeon) {
self.renderer
.draw_frame(self.handle.get_mut(), &self.thread, dungeon);
}
/// Toggles the debug UI
pub fn toggle_debug(&mut self) {
self.renderer.toggle_debug();
}
/// 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> {
// We dont want to require a mutable reference
// to read the last key pressed
self.handle
.try_borrow_mut()
.ok()
.and_then(|mut h| h.get_key_pressed())
}
/// Get audio data for the window
pub fn audio(&self) -> &Audio {
&self.audio
}
}
|
