feat: add subtle full-body sheep walking motion

tests/character.test.ts

@@ -108,8 +108,12 @@ test('exported sheep has working joints and renders the final idle pose after wa
   const leg = sheep.group.getObjectByName('LegLeft')!;
   const rest = leg.quaternion.clone();
   assert.equal(sheep.pose('idle', 0, true, 1), true);
+  sheep.pose('idle', 0, true, 1.2);
   assert.ok(leg.quaternion.angleTo(rest) > .01);
-  assert.equal(sheep.pose('idle', 0, false, 1), true, 'stopping must invalidate one frame');
+  const walking = leg.quaternion.clone();
+  assert.equal(sheep.pose('idle', 0, false, 1.2), true, 'stopping must invalidate one frame');
+  assert.ok(leg.quaternion.angleTo(walking) < 1e-6, 'stopping blends instead of snapping');
+  sheep.pose('idle', 0, false, 4);
   assert.ok(leg.quaternion.angleTo(rest) < 1e-6);
   assert.equal(sheep.pose('idle', 0, false, 1), true, 'idle breathing keeps rendering');
   const arm = sheep.group.getObjectByName('ArmRight')!;
@@ -146,7 +150,13 @@ test('idle breathing moves torso and head while feet stay planted and clones ret
   assert.ok(!body.scale.equals(bodyRest), 'breathing blends out instead of snapping');
   sheep.pose('idle', 0, true, 1.2);
   assert.deepEqual(body.scale, bodyRest);
-  assert.deepEqual(head.position, headRest);
+  assert.ok(head.position.distanceTo(headRest) > .001, 'walking carries the head');
+  assert.ok(body.position.x !== 0, 'walking shifts the torso weight');
+  const walkingHead = head.position.clone();
+  sheep.pose('idle', 0, true, 1.2);
+  assert.deepEqual(head.position, walkingHead, 'walking offsets cannot accumulate');
+  sheep.pose('pray', 0, false, 1.5);
+  assert.deepEqual(head.position, headRest, 'emotes clear walking offsets');
   remote.dispose(); sheep.dispose();
 });
 

tests/rain-gear.test.ts

@@ -11,6 +11,7 @@ import { Vector3 } from 'three';
 
 test('idle breathing carries the coat and hood without lifting the feet or changing the umbrella grip', async () => {
   const [model, umbrella, raincoat] = await Promise.all(['red-sheep', 'umbrella', 'raincoat'].map(asset));
+  raincoat.name = 'TestRaincoat';
   const sheep = createSheep(model, { umbrella, raincoat });
   sheep.setEquipment(true, true, true);
   const body = model.getObjectByName('Body')!, head = model.getObjectByName('Head')!;
@@ -26,6 +27,15 @@ test('idle breathing carries the coat and hood without lifting the feet or chang
   sheep.pose('idle', 0, false, 2);
   assert.ok(arm.quaternion.angleTo(grip) < 1e-8);
   assert.ok(foot.getWorldPosition(new Vector3()).distanceTo(footPosition) < 1e-8);
+  const remote = sheep.clone();
+  remote.pose('idle', 0, false, 0);
+  remote.pose('idle', 0, false, 1);
+  const remoteCoat = remote.group.getObjectByName('TestRaincoat')!;
+  const remoteCoatPosition = remoteCoat.position.clone();
+  sheep.pose('idle', 0, true, 3);
+  remote.pose('idle', 0, false, 1);
+  assert.deepEqual(remoteCoat.position, remoteCoatPosition, 'local walking cannot change a remote coat pivot');
+  remote.dispose();
   sheep.dispose();
 });