Use cargo as a build system instead of makefiles

.gitignore

@@ -1 +1,6 @@
 bin/
+
+
+# Added by cargo
+
+/target

Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "test-raylib-rust"
+version = "0.1.0"

Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "test-raylib-rust"
+version = "0.1.0"
+edition = "2021"
+build = "build.rs"
+
+[[bin]]
+name = "rect"
+path = "src/rect.rs"
+
+[[bin]]
+name = "bounce"
+path = "src/bounce.rs"

Makefile

@@ -1,10 +0,0 @@
-.PHONY: all
-
-all: rect bounce
-
-rect: rect.rs
-	rustc -L./raylib/ -lraylib $< -o bin/$@
-
-bounce: bounce.rs
-	rustc -L./raylib/ -lraylib $< -o bin/$@
-

README.md

@@ -1,3 +1,9 @@
 # Rust and raylib playground
 
 A sample project to play with rust, raylib, and rust/c interoperability
+
+## How to run
+
+```shell
+$ cargo run --bin rect
+```

build.rs

@@ -0,0 +1,8 @@
+fn main() {
+    // https://doc.rust-lang.org/cargo/reference/build-scripts.html
+    // cargo-equivalent to running rustc -L./raylib/ -lraylib test.rs -o bin/test
+    // to link against the libraylib.a static library
+    println!("cargo:rustc-link-search=./raylib");
+    println!("cargo:rustc-link-lib=static=raylib");
+}
+