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resources/public/js/cljs-runtime/module$node_modules$pixi_DOT_js$lib$prepare$PrepareBase.js

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+shadow$provide.module$node_modules$pixi_DOT_js$lib$prepare$PrepareBase = function(global, require, module, exports) {
+  var Container = require("module$node_modules$pixi_DOT_js$lib$scene$container$Container"), _const = require("module$node_modules$pixi_DOT_js$lib$ticker$const"), Ticker = require("module$node_modules$pixi_DOT_js$lib$ticker$Ticker");
+  "use strict";
+  const node_modules$pixi_DOT_js$lib$prepare$PrepareBase$classdecl$var42 = class {
+    constructor(renderer) {
+      this._tick = () => {
+        this._destroyed || (this.timeout = setTimeout(this._processQueue, 0));
+      };
+      this._processQueue = () => {
+        if (!this._destroyed) {
+          for (var {queue} = this, itemsProcessed = 0; queue.length && itemsProcessed < node_modules$pixi_DOT_js$lib$prepare$PrepareBase$classdecl$var42.uploadsPerFrame;) {
+            const queueItem = queue.shift();
+            this.uploadQueueItem(queueItem);
+            itemsProcessed++;
+          }
+          queue.length ? Ticker.Ticker.system.addOnce(this._tick, this, _const.UPDATE_PRIORITY.UTILITY) : this._resolve();
+        }
+      };
+      this.renderer = renderer;
+      this.queue = [];
+      this.resolves = [];
+    }
+    getQueue() {
+      return [...this.queue];
+    }
+    add(resource) {
+      resource = Array.isArray(resource) ? resource : [resource];
+      for (const resourceItem of resource) {
+        resourceItem instanceof Container.Container ? this._addContainer(resourceItem) : this.resolveQueueItem(resourceItem, this.queue);
+      }
+      return this;
+    }
+    _addContainer(container) {
+      this.resolveQueueItem(container, this.queue);
+      for (const child of container.children) {
+        this._addContainer(child);
+      }
+    }
+    upload(resource) {
+      resource && this.add(resource);
+      return new Promise(resolve => {
+        this.queue.length ? (this.resolves.push(resolve), this.dedupeQueue(), Ticker.Ticker.system.addOnce(this._tick, this, _const.UPDATE_PRIORITY.UTILITY)) : resolve();
+      });
+    }
+    dedupeQueue() {
+      const hash = Object.create(null);
+      let nextUnique = 0;
+      for (let i = 0; i < this.queue.length; i++) {
+        const current = this.queue[i];
+        hash[current.uid] || (hash[current.uid] = !0, this.queue[nextUnique++] = current);
+      }
+      this.queue.length = nextUnique;
+    }
+    destroy() {
+      this._destroyed = !0;
+      clearTimeout(this.timeout);
+    }
+    _resolve() {
+      const {resolves} = this, array = resolves.slice(0);
+      resolves.length = 0;
+      for (const resolve of array) {
+        resolve();
+      }
+    }
+  };
+  global = node_modules$pixi_DOT_js$lib$prepare$PrepareBase$classdecl$var42;
+  global.uploadsPerFrame = 4;
+  exports.PrepareBase = global;
+};
+
+//# sourceMappingURL=module$node_modules$pixi_DOT_js$lib$prepare$PrepareBase.js.map