diff --git a/lib/snf/src/demo.rs b/lib/snf/src/demo.rs
index 119290a..3c870e8 100644
--- a/lib/snf/src/demo.rs
+++ b/lib/snf/src/demo.rs
@@ -7,21 +7,29 @@ pub enum Error{
 
 /*
 BLOCK_DEMO_HEADER:
-u128 map_resource_id
-u64 map_header_block_id
+u32 num_maps
+for map_id in 0..num_maps{
+	i64 simulation_time
+	u128 map_resource_id
+	u64 map_header_block_id
+}
 u32 num_bots
 for bot_id in 0..num_bots{
+	i64 simulation_time
 	u128 bot_resource_id
 	u64 bot_header_block_id
 }
 
+//map loading timeline
+
 //bot loading timeline
 how to do worldstate for deathrun!?
+- this is done in the client, there is no worldstate in the demo file
 
 */
 
 pub struct StreamableDemo<R:BinReaderExt>{
-	map:Box<crate::map::StreamableMap<R>>,
+	map:Vec<crate::map::StreamableMap<R>>,
 	bots:Vec<crate::bot::StreamableBot<R>>,
 }
 impl<R:BinReaderExt> StreamableDemo<R>{