fix to cargo_rerun_if_changed method

1 files changed, 2 insertions, 1 deletions

diff --git a/gate_build/src/asset_packer.rs b/gate_build/src/asset_packer.rs
index 7aa9173..f604fb0 100644
--- a/gate_build/src/asset_packer.rs
+++ b/gate_build/src/asset_packer.rs
@@ -65,7 +65,8 @@ impl AssetPacker {
     ///
     /// Panics if called after calling methods to pack assets.
     pub fn cargo_rerun_if_changed(&mut self) {
-        assert!(self.sprites.is_none(), "cannot add rerun checks after asset packing has already started");
+        assert!(self.sprites.is_none() && self.music.is_none() && self.sounds.is_none(),
+                "cannot add rerun checks after asset packing has already started");
         self.check_rerun = true;
     }