make projectM cloneable, fix playlist create

Author: revmischa

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "projectm"
-version = "2.0.0-alpha"
+version = "2.0.1-alpha"
 edition = "2021"
 rust-version = "1.65"
 authors = ["AnomieVision <[email protected]>"]
@@ -18,4 +18,4 @@ rand = "0.8.5"
 
 [features]
 default = ["playlist"]
-playlist = []
+playlist = []

src/core.rs

@@ -801,3 +801,12 @@ impl ProjectM {
 
 unsafe impl Send for ProjectM {}
 unsafe impl Sync for ProjectM {}
+
+// allow cloning the handle
+impl Clone for ProjectM {
+    fn clone(&self) -> Self {
+        ProjectM {
+            instance: self.instance.clone(),
+        }
+    }
+}

src/playlist.rs

@@ -13,7 +13,7 @@ pub struct Playlist {
 
 impl Playlist {
     /// Create a new playlist for [Projectm](ProjectMHandle)
-    pub fn create(projectm: ProjectM) -> Playlist {
+    pub fn create(projectm: &ProjectM) -> Playlist {
         let projectm = projectm.get_instance();
         let instance = projectm.borrow_mut();