From a8fc41f6bea04cdda70bd0d78ad8c4fec9cacf4f Mon Sep 17 00:00:00 2001
From: scamiv <6170744+scamiv@users.noreply.github.com>
Date: Tue, 13 Jan 2026 04:58:53 +0100
Subject: [PATCH] Refactor interpolation logic in TerritoryLayer for accurate
 animation timing

- Adjusted the denominator calculation for interpolation to use the actual tick interval, allowing animations to scale correctly with tick speed.
- Removed the previous 250ms cap that caused early animation completion at slower tick speeds, improving visual fidelity during territory transitions.
---
 src/client/graphics/layers/TerritoryLayer.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/client/graphics/layers/TerritoryLayer.ts b/src/client/graphics/layers/TerritoryLayer.ts
index 22326c23a..e2be025bd 100644
--- a/src/client/graphics/layers/TerritoryLayer.ts
+++ b/src/client/graphics/layers/TerritoryLayer.ts
@@ -638,7 +638,9 @@ export class TerritoryLayer implements Layer {
       toTime = this.tickTimeMsPrev;
     }
 
-    const denom = Math.max(1, Math.min(250, toTime - fromTime));
+    // Use the real tick interval so interpolation duration scales with tick speed.
+    // The previous 250ms cap caused slow tick speeds (e.g. 0.5x) to finish animations early.
+    const denom = Math.max(1, toTime - fromTime);
     const progress = Math.max(0, Math.min(1, (renderTime - fromTime) / denom));
 
     this.lastInterpolationPair = pair;