From 490f02f2fec3b6912d0f76f5125a0200e20d45a4 Mon Sep 17 00:00:00 2001
From: Alula <6276139+alula@users.noreply.github.com>
Date: Sun, 2 May 2021 02:07:44 +0200
Subject: [PATCH] stop eating CPU time when window is in background

---
 src/framework/backend_sdl2.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/framework/backend_sdl2.rs b/src/framework/backend_sdl2.rs
index c194bbd..fd9afb2 100644
--- a/src/framework/backend_sdl2.rs
+++ b/src/framework/backend_sdl2.rs
@@ -24,6 +24,7 @@ use crate::framework::render_opengl::{GLContext, OpenGLRenderer};
 use crate::framework::ui::init_imgui;
 use crate::Game;
 use crate::GAME_SUSPENDED;
+use std::time::Duration;
 
 pub struct SDL2Backend {
     context: Sdl,
@@ -176,6 +177,7 @@ impl BackendEventLoop for SDL2EventLoop {
             {
                 let mutex = GAME_SUSPENDED.lock().unwrap();
                 if *mutex {
+                    std::thread::sleep(Duration::from_millis(10));
                     continue;
                 }
             }