stub in placeholder for fdm animation

src/mode/cam/client.js

@@ -41,7 +41,7 @@
         API = api;
 
         // wire up animate button in ui
-        api.function.animate = () => {
+        api.event.on("function.animate", (mode) => {
             if (isCamMode && !camStock) {
                 return api.show.alert("animation requires stock to be enabled");
             }
@@ -50,7 +50,7 @@
                     animate();
                 }
             });
-        };
+        });
 
         api.event.on("mode.set", (mode) => {
             isCamMode = mode === 'CAM';

src/mode/fdm/client.js

@@ -102,6 +102,24 @@
               }
         }
 
+        api.event.on("function.animate", (mode) => {
+            if (!isFdmMode) {
+                return;
+            }
+            if (!API.conf.get().controller.danger) {
+                return;
+            }
+            let pct = 0;
+            let int = setInterval(function() {
+                if (pct <= 1) {
+                    api.const.STACKS.setFraction(pct);
+                    pct += 0.05;
+                } else {
+                    api.const.STACKS.setFraction(1);
+                    clearTimeout(int);
+                }
+            }, 50);
+        });
         api.event.on("mode.set", mode => {
             isFdmMode = mode === 'FDM';
             lastMode = mode;