Stabilize unit facing and movement feedback

src/game/data/unitAssets.ts

@@ -5,8 +5,6 @@ export type UnitDirection = 'south' | 'east' | 'north' | 'west';
 const unitWalkFrameCount = 4;
 export const unitSheetFrameSize = 313;
 const unitWalkFrameRate = 8;
-const unitIdleFrameRate = 4;
-
 const unitSheetRows: Record<UnitDirection, number> = {
   south: 0,
   east: 1,
@@ -98,6 +96,7 @@ export function ensureUnitAnimations(scene: Phaser.Scene, keys: Iterable<string>
         key,
         frame: unitSheetRows[direction] * unitWalkFrameCount + frameIndex
       }));
+      const idleFrame = [{ key, frame: unitSheetRows[direction] * unitWalkFrameCount }];
       const walkAnimationKey = `${key}-walk-${direction}`;
       const idleAnimationKey = `${key}-idle-${direction}`;
 
@@ -113,9 +112,9 @@ export function ensureUnitAnimations(scene: Phaser.Scene, keys: Iterable<string>
       if (!scene.anims.exists(idleAnimationKey)) {
         scene.anims.create({
           key: idleAnimationKey,
-          frames,
-          frameRate: unitIdleFrameRate,
-          repeat: -1
+          frames: idleFrame,
+          frameRate: 1,
+          repeat: 0
         });
       }
     });