From 42647b73735960e6b4954c043e03bca66cd9ad73 Mon Sep 17 00:00:00 2001
From: Corwin Kuiper <corwin@kuiper.dev>
Date: Sat, 7 Aug 2021 13:21:54 +0100
Subject: [PATCH] add println macro for mgba

---
 agb/examples/output.rs |  7 +------
 agb/src/mgba.rs        | 11 +++++++++++
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/agb/examples/output.rs b/agb/examples/output.rs
index cb2675d..4c8d91e 100644
--- a/agb/examples/output.rs
+++ b/agb/examples/output.rs
@@ -5,7 +5,6 @@ extern crate agb;
 #[no_mangle]
 pub fn main() -> ! {
     let mut gba = agb::Gba::new();
-    let mut mgba = agb::mgba::Mgba::new().unwrap();
 
     let vblank = gba.display.vblank.get();
 
@@ -13,11 +12,7 @@ pub fn main() -> ! {
     loop {
         vblank.wait_for_VBlank();
 
-        mgba.print(
-            format_args!("Hello, world, frame = {}", count),
-            agb::mgba::DebugLevel::Info,
-        )
-        .unwrap();
+        agb::println!("Hello, world, frame = {}", count);
 
         count += 1;
     }
diff --git a/agb/src/mgba.rs b/agb/src/mgba.rs
index 380efdf..02481fa 100644
--- a/agb/src/mgba.rs
+++ b/agb/src/mgba.rs
@@ -78,3 +78,14 @@ impl core::fmt::Write for Mgba {
         Ok(())
     }
 }
+
+#[macro_export]
+macro_rules! println {
+    ($( $x:expr ),*) => {
+        {
+            if let Some(mut mgba) = $crate::mgba::Mgba::new() {
+                let _ = mgba.print(format_args!($($x,)*), $crate::mgba::DebugLevel::Info);
+            }
+        }
+    };
+}