fun: fade that sucker out and don't collide

server/fixtures/rock-projectile.entity.js

@@ -40,10 +40,23 @@ export function rockProjectileJSON() {
       0.5,
     ],
   );
+  const setIsNotColliding = buildTraversal(
+    ['entity', 'isColliding'],
+    false,
+  );
   const setIsNotDamaging = buildTraversal(
     ['entity', 'isDamaging'],
     false,
   );
+  const fadeOut = buildInvoke(
+    ['entity', 'transition'],
+    [
+      {
+        opacity: 0,
+      },
+      0.2,
+    ],
+  );
   const reflect = buildInvoke(
     ['entity', 'moveFor'],
     [
@@ -54,7 +67,19 @@ export function rockProjectileJSON() {
           buildTraversal(['obstacle', 'position']),
         ],
       ),
-      0.05,
+      0.2,
+    ],
+  );
+  const afterImpact = buildInvoke(
+    ['global', 'parallel'],
+    [
+      {
+        type: 'actions',
+        traversals: [
+          fadeOut,
+          reflect,
+        ],
+      },
     ],
   );
   // Destroy.
@@ -87,8 +112,9 @@ export function rockProjectileJSON() {
                 routine: {
                   type: 'actions',
                   traversals: [
+                    setIsNotColliding,
                     setIsNotDamaging,
-                    reflect,
+                    afterImpact,
                     destroy,
                   ],
                 },