(hopefully) improved reconciliation

server/ws.js

@@ -88,6 +88,8 @@ export function init(http_server) {
                                 name: prop.name,
                                 x: prop.x,
                                 y: prop.y,
+                                xv: prop.xv,
+                                yv: prop.yv,
                                 col: prop.colour,
                                 sprite: prop.sprite,
                             }
@@ -193,6 +195,8 @@ function update() {
         frame_props[id] = {
             x: prop.x,
             y: prop.y,
+            xv: prop.xv,
+            yv: prop.yv,
         }
     });