diff --git a/packages/app/src/components/app/play/index.jsx b/packages/app/src/components/app/play/index.jsx
index acbea57..e0331f6 100644
--- a/packages/app/src/components/app/play/index.jsx
+++ b/packages/app/src/components/app/play/index.jsx
@@ -1,9 +1,63 @@
-import {React} from '@flecks/react';
+import {InputNormalizer} from '@avocado/input/client';
+import {
+  React,
+  useEffect,
+} from '@flecks/react';
+import {useDispatch} from '@flecks/redux';
+import {useSocket} from '@flecks/socket';
+import {setSelfEntity} from '@humus/app/state';
+
+import {
+  useSelfEntity,
+} from '../../../hooks';
 
 import Renderable from './renderable';
 import Ui from './ui';
 
 function Play() {
+  const dispatch = useDispatch();
+  const selfEntity = useSelfEntity();
+  const socket = useSocket();
+  // Join.
+  useEffect(() => {
+    const join = async () => {
+      dispatch(setSelfEntity(await socket.send(['Join'])));
+    };
+    join();
+    socket.on('reconnect', join);
+    return () => {
+      socket.off('reconnect', join);
+    };
+  }, [dispatch, socket]);
+  // Input.
+  useEffect(() => {
+    if (!selfEntity) {
+      return undefined;
+    }
+    const inputNormalizer = new InputNormalizer();
+    inputNormalizer.listen(window.document.body);
+    selfEntity.listenForInput(inputNormalizer);
+    selfEntity.actionRegistry.setTransformerFor('UseItem', (type, value) => {
+      switch (type) {
+        case 'joystick':
+          return value === 0 ? -1 : selfEntity.activeSlotIndex;
+        case 'buttonPress':
+        case 'keyDown':
+          return selfEntity.activeSlotIndex;
+        default:
+          return -1;
+      }
+    });
+    const inputHandle = setInterval(() => {
+      const actionStream = selfEntity.drainInput();
+      if (actionStream.length > 0) {
+        socket.send(['Input', actionStream]);
+      }
+    }, 1000 / 60);
+    return () => {
+      clearInterval(inputHandle);
+    };
+  }, [selfEntity, socket]);
   return (
     <>
       <Renderable />
diff --git a/packages/app/src/components/app/play/ui/index.jsx b/packages/app/src/components/app/play/ui/index.jsx
index 9ac4376..165810a 100644
--- a/packages/app/src/components/app/play/ui/index.jsx
+++ b/packages/app/src/components/app/play/ui/index.jsx
@@ -1,6 +1,3 @@
-import './index.scss';
-
-import {InputNormalizer} from '@avocado/input/client';
 import {Vector} from '@avocado/math';
 import {Room} from '@avocado/topdown';
 import {
@@ -10,11 +7,6 @@ import {
   useRef,
   useState,
 } from '@flecks/react';
-import {useDispatch} from '@flecks/redux';
-import {useSocket} from '@flecks/socket';
-import {
-  setSelfEntity,
-} from '@humus/app/state';
 
 import {
   useRoom,
@@ -23,83 +15,47 @@ import {
 import Hotbar from './hotbar';
 
 const PlayUi = () => {
-  const dispatch = useDispatch();
   const flecks = useFlecks();
   const ref = useRef();
   const room = useRoom();
   const selfEntity = useSelfEntity();
-  const socket = useSocket();
-  const [left, setLeft] = useState(0);
-  const [top, setTop] = useState(0);
+  const [position, setPosition] = useState([0, 0]);
   const [domScale, setDomScale] = useState([1, 1]);
+  // Handle camera changes.
   useEffect(() => {
     if (!room || !selfEntity) {
       return undefined;
     }
+    // Initial snap camera to position.
     selfEntity.camera.realPosition = selfEntity.camera.position;
     const onCameraRealOffsetChanged = () => {
-      const [left, top] = Vector.scale(selfEntity.camera.realOffset, -1);
-      const {resolution} = flecks.get('@humus/app');
-      setDomScale(Vector.div(resolution, selfEntity.camera.viewSize));
-      setLeft(left);
-      setTop(top);
+      setPosition(Vector.scale(selfEntity.camera.realOffset, -1));
+    };
+    const onCameraViewSizeChanged = () => {
+      setDomScale(Vector.div(flecks.get('@humus/app.resolution'), selfEntity.camera.viewSize));
     };
     onCameraRealOffsetChanged();
+    onCameraViewSizeChanged();
     selfEntity.camera.on('realOffsetChanged', onCameraRealOffsetChanged);
+    selfEntity.camera.on('viewSizeChanged', onCameraViewSizeChanged);
     return () => {
-      const {camera} = selfEntity || {};
+      const {camera} = selfEntity;
       if (camera) {
-        camera.off('realOffsetChanged', onCameraRealOffsetChanged);
+        camera.off('realOffsetChanged', onCameraViewSizeChanged);
+        camera.off('viewSizeChanged', onCameraViewSizeChanged);
       }
     };
   }, [flecks, room, selfEntity]);
+  // Focus.
   useEffect(() => {
-    const join = async () => {
-      dispatch(setSelfEntity(await socket.send(['Join'])));
-    };
-    join();
-    socket.on('reconnect', join);
-    return () => {
-      socket.off('reconnect', join);
-    };
-  }, [dispatch, socket]);
-  useEffect(() => {
-    if (!ref.current || !selfEntity) {
-      return undefined;
+    if (ref.current) {
+      ref.current.focus();
     }
-    const inputNormalizer = new InputNormalizer();
-    inputNormalizer.listen(window.document.body);
-    selfEntity.listenForInput(inputNormalizer);
-    selfEntity.actionRegistry.setTransformerFor('UseItem', (type, value) => {
-      switch (type) {
-        case 'joystick':
-          return value === 0 ? -1 : selfEntity.activeSlotIndex;
-        case 'buttonPress':
-        case 'keyDown':
-          return selfEntity.activeSlotIndex;
-        default:
-          return -1;
-      }
-    });
-    const inputHandle = setInterval(() => {
-      const actionStream = selfEntity.drainInput();
-      if (actionStream.length > 0) {
-        socket.send(['Input', actionStream]);
-      }
-    }, 1000 / 60);
-    ref.current.focus();
-    return () => {
-      clearInterval(inputHandle);
-    };
-  }, [selfEntity, socket]);
+  });
   return (
-    <div
-      className="play"
-      ref={ref}
-      // eslint-disable-next-line jsx-a11y/no-noninteractive-tabindex
-      tabIndex="0"
-    >
-      <Room domScale={domScale} left={left} room={room} top={top} />
+    // eslint-disable-next-line jsx-a11y/no-noninteractive-tabindex
+    <div ref={ref} tabIndex="0">
+      <Room domScale={domScale} position={position} room={room} />
       {selfEntity && <Hotbar selfEntity={selfEntity} />}
     </div>
   );
diff --git a/packages/app/src/components/app/play/ui/index.scss b/packages/app/src/components/app/play/ui/index.scss
deleted file mode 100644
index e69de29..0000000