run script as a thread

src/runner/runner.rs

@@ -85,10 +85,15 @@ impl Runnable<'_>{
 	}
 	pub fn run_script(&self,script:super::instance::Instance)->Result<(),Error>{
 		let (name,source)=super::instance::get_name_source(&self.lua,script).map_err(Error::RustLua)?;
-		self.lua.globals().set("script",script).map_err(Error::RustLua)?;
-		self.lua.load(source.as_str())
-		.set_name(name)
-		.exec().map_err(|error|Error::Lua{source,error})
+		self.lua.globals().raw_set("script",script).map_err(Error::RustLua)?;
+		let f=self.lua.load(source.as_str())
+		.set_name(name).into_function().map_err(Error::RustLua)?;
+		// TODO: set_environment without losing the ability to print from Lua
+		let thread=self.lua.create_thread(f).map_err(Error::RustLua)?;
+		thread.resume::<mlua::MultiValue>(()).map_err(|error|Error::Lua{source,error})?;
+		// wait() is called from inside Lua and goes to a rust function that schedules the thread and then yields
+		// No need to schedule the thread here
+		Ok(())
 	}
 	pub fn has_scheduled_threads(&self)->Result<bool,mlua::Error>{
 		scheduler_mut(&self.lua,|scheduler|