Method update

packages/melonjs/src/renderable/container.js:1114–1151

* container update function. * automatically called by the application update loop Application * @protected * @param {number} dt - time since the last update in milliseconds. * @returns {boolean} true if the Container is dirty

(dt)

	 * @returns {boolean} true if the Container is dirty
	 */
	update(dt) {
		let isFloating = false;
		const isPaused = state.isPaused();
		const children = this.getChildren();
		const childrenLength = children.length;
		const cameras = state.current().cameras;

		for (let i = childrenLength, obj; i--, (obj = children[i]); ) {
			if (isPaused && !obj.updateWhenPaused) {
				// skip this object
				continue;
			}

			isFloating = globalFloatingCounter > 0 || obj.floating;
			if (isFloating) {
				globalFloatingCounter++;
			}

			// check if object is in any active cameras
			obj.inViewport = false;
			// iterate through all cameras
			cameras.forEach((camera) => {
				if (camera.isVisible(obj, isFloating)) {
					obj.inViewport = true;
				}
			});

			// update our object
			this.isDirty |= (obj.inViewport || obj.alwaysUpdate) && obj.update(dt);

			if (globalFloatingCounter > 0) {
				globalFloatingCounter--;
			}
		}

		// call the parent method
		return super.update(dt);
	}

	/**
	 * draw this renderable (automatically called by melonJS)