chore: LayerProxy API

app/ecs-components/tile-layers.js

@@ -48,6 +48,12 @@ export default function(Component) {
           constructor(layer) {
             this.layer = layer;
           }
+          get area() {
+            return this.layer.area;
+          }
+          get source() {
+            return this.layer.source;
+          }
           stamp(at, data) {
             const changes = {};
             for (const row in data) {
@@ -72,6 +78,9 @@ export default function(Component) {
             }
             return this.layer.data[y * this.layer.area.x + x];
           }
+          get tileSize() {
+            return this.layer.tileSize;
+          }
         }
         return new LayerProxy(layers[index]);
       };