Depth stacking within layers

js/layer.js

@@ -1,33 +1,14 @@
-var __classPrivateFieldSet = (this && this.__classPrivateFieldSet) || function (receiver, privateMap, value) {
-    if (!privateMap.has(receiver)) {
-        throw new TypeError("attempted to set private field on non-instance");
-    }
-    privateMap.set(receiver, value);
-    return value;
-};
-var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, privateMap) {
-    if (!privateMap.has(receiver)) {
-        throw new TypeError("attempted to get private field on non-instance");
-    }
-    return privateMap.get(receiver);
-};
-var _level, _tileset;
 export class Layer {
-    constructor() {
-        _level.set(this, void 0);
-        _tileset.set(this, void 0);
-    }
     set_level(level) {
-        __classPrivateFieldSet(this, _level, level);
+        this.level = level;
     }
     set_tileset(tileset) {
-        __classPrivateFieldSet(this, _tileset, tileset);
+        this.tileset = tileset;
     }
-    add_tile(tile_factory) {
-        const tile = tile_factory.build(__classPrivateFieldGet(this, _tileset));
-        tile.elem.style.zIndex = `${__classPrivateFieldGet(this, _level)}`;
+    add_tile(tile_factory, y) {
+        const tile = tile_factory.build(this.tileset);
+        tile.elem.style.zIndex = `${this.level + y}`;
         return tile;
     }
 }
-_level = new WeakMap(), _tileset = new WeakMap();
 //# sourceMappingURL=layer.js.map