despawn entities when switching worlds and some testbot fixes

1 files changed, 7 insertions, 0 deletions

diff --git a/azalea-protocol/src/read.rs b/azalea-protocol/src/read.rs
index 01744169..84c307d7 100755
--- a/azalea-protocol/src/read.rs
+++ b/azalea-protocol/src/read.rs
@@ -117,6 +117,13 @@ fn parse_frame(buffer: &mut Cursor<Vec<u8>>) -> Result<Box<[u8]>, FrameSplitterE
         // reset the inner vec once we've reached the end of the buffer so we don't keep
         // leaking memory
         buffer.get_mut().clear();
+
+        // we just cap the capacity to 64KB instead of resetting it to save some
+        // allocations.
+        // and the reason we bother capping it at all is to avoid wasting memory if we
+        // get a big packet once and then never again.
+        buffer.get_mut().shrink_to(1024 * 64);
+
         buffer.set_position(0);
     }