make size of inputs sent configurable

lukewilliamboswell · Nov 11, 2024 · 8c8c295 · 8c8c295
1 parent 616a98d
commit 8c8c295
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Showing 3 changed files with 7 additions and 4 deletions.
diff --git a/examples/rollback/Config.roc b/examples/rollback/Config.roc
@@ -10,4 +10,5 @@ rollback = {
     millisPerTick: 1000 // 120,
     maxRollbackTicks: 16,
     tickAdvantageLimit: 10,
+    sendMostRecent: 20,
 }
diff --git a/examples/rollback/Rollback.roc b/examples/rollback/Rollback.roc
@@ -29,11 +29,11 @@ currentState : Recording -> World
 currentState = \@Recording recording ->
     recording.state
 
-recentMessages : Recording, U64 -> List FrameMessage
-recentMessages = \@Recording recording, n ->
+recentMessages : Recording -> List FrameMessage
+recentMessages = \@Recording recording ->
     recording.outgoingMessages
     |> List.keepOks \res -> res
-    |> List.takeLast n
+    |> List.takeLast recording.config.sendMostRecent
 
 desyncStatus : Recording -> [Synced, Desynced DesyncBugReport]
 desyncStatus = \@Recording recording ->
@@ -49,6 +49,8 @@ Config : {
     ## the configured frame advantage limit;
     ## a client further ahead of their opponent than this will block
     tickAdvantageLimit : I64,
+    ## how many recent frames of inputs to send each frame
+    sendMostRecent : U64,
 }
 
 ## a World with rollback and fixed timestep related bookkeeping

diff --git a/examples/rollback/main.roc b/examples/rollback/main.roc
@@ -191,7 +191,7 @@ renderConnected! = \oldModel, state ->
 
     model = { oldModel & world, timestampMillis }
 
-    messages = Rollback.recentMessages world 10
+    messages = Rollback.recentMessages world
     sendFrameMessages! messages network
 
     drawConnected! model state