macroquad is a simple and easy to use game library for Rust programming language, heavily inspired by raylib.
cargo clean takes only 16s on x230(~6 years old laptop).Macroquad is a normal rust dependency, therefore an empty macroquad project may be created with:
```bash
cargo init --bin ```
Add macroquad as a dependency to Cargo.toml: ```toml
[dependencies] macroquad = "0.4" ```
Put some macroquad code in src/main.rs:
```rust
use macroquad::prelude::*;
async fn main() { loop { clear_background(RED);
draw_line(40.0, 40.0, 100.0, 200.0, 15.0, BLUE);
draw_rectangle(screen_width() / 2.0 - 60.0, 100.0, 120.0, 60.0, GREEN);
draw_circle(screen_width() - 30.0, screen_height() - 30.0, 15.0, YELLOW);
draw_text("IT WORKS!", 20.0, 20.0, 30.0, DARKGRAY);
next_frame().await
}
} ```
And to run it natively:
bash
cargo run
For more examples take a look at Macroquad examples folder
```bash
apt install pkg-config libx11-dev libxi-dev libgl1-mesa-dev libasound2-dev
dnf install libX11-devel libXi-devel mesa-libGL-devel alsa-lib-devel
pacman -S pkg-config libx11 libxi mesa-libgl alsa-lib ```
On windows both MSVC and GNU target are supported, no additional dependencies required.
Also cross-compilation to windows from linux is supported:
```sh rustup target add x86_64-pc-windows-gnu
cargo run --target x86_64-pc-windows-gnu ```
sh
rustup target add wasm32-unknown-unknown
cargo build --target wasm32-unknown-unknown
This will produce .wasm file in target/debug/wasm32-unknown-unknown/CRATENAME.wasm or in target/release/wasm32-unknown-unknown/CRATENAME.wasm if built with --release.
And then use the following .html to load it:
index.html
```html
```
One of the ways to server static .wasm and .html:
sh
cargo install basic-http-server
basic-http-server .
To run on the simulator:
``` mkdir MyGame.app cargo build --target x86_64-apple-ios --release cp target/release/mygame MyGame.app
cp -r assets MyGame.app
cat > MyGame.app/Info.plist << EOF
xcrun simctl install booted MyGame.app/ xcrun simctl launch booted com.mygame ```
For details and instructions on provisioning for real iphone, check https://macroquad.rs/articles/ios/
Tips
Adding the following snippet to your Cargo.toml ensures that all dependencies compile in release even in debug mode. In macroquad, this has the effect of making images load several times faster and your applications much more performant, while keeping compile times miraculously low.
toml
[profile.dev.package.'*']
opt-level = 3
While macroquad attempts to use as few Rust-specific concepts as possible, .await in all examples looks a bit scary.
Rust's async/await is used to solve just one problem - cross platform main loop organization.
Details
The problem: on WASM and android it's not really easy to organize the main loop like this: ``` fn main() { // do some initialization
// start main loop
loop {
// handle input
// update logic
// draw frame
}
} ```
It is fixable on Android with threads, but on web there is not way to "pause" and "resume" WASM execution, so no WASM code should block ever. While that loop is blocking for the entire game execution! The C++ solution for that problem: https://kripken.github.io/blog/wasm/2019/07/16/asyncify.html
But in Rust we have async/await. Rust's futures are basically continuations - future's stack may be stored into a variable to pause/resume execution of future's code at a later point.
async/await support in macroquad comes without any external dependencies - no runtime, no executors and futures-rs is not involved. It's just a way to preserve main's stack on WASM and keep the code cross platform without any WASM-specific main loop.
Macroquad is supported by:
