Andrew Rhodes

Andrew Rhodes


A Ballz inspired game with React Native


Ballz has enjoyed a lot of use and family competition in our home. This project is meant to help learn React Native by writting a Ballz-inspired game with some tweaks and see what happens. This app should never be published to the app store as it’s just for learning purposes. React Native isn’t the best gaming plaform, it’s probably going to be terrible. This will be a fun test of the performance improvements coming in Fabric. Maybe even use fancy hooks coming in React Native 0.59!

Beware, I’m not responsible for the hours you’ll waste playing the game or evolving the game. It’s a tad addictive.

Update: Feb 8, 2019

I was able to make a lot more progress than originally anticipated. It’s still a very shitty first version, but quite the surprise honestly how far it got quickly. There are so many rough edges left to fill! Used React Native Game Engine as a super light-weight starting point of a game loop. The code is crappy, but it works.

Update: March 15, 2019

Holy batman, the memory leaks are insane and it’s time for performance work. With a bit of help from Siavash, animations and rebound aiming have been added and the game is almost there and ready for more hours of wasted time.

Original game is on the left and React Native version (source in this repo) on the right.

Original Game React Native Version

Quick Start iOS

git clone

cd bouncifyrn

npm install

react-native run-ios


This is a play-by-play of the small steps taken from a blank screen to getting an addictive game built and running

  • [x] Get balls moving around the screen with grade 2 level math
  • [x] Define and draw playing surface and limit movement within
  • [x] Start ball from bottom on click with tail
  • [x] Start angle touch motion calculation and display
  • [x] Colision detection on box, bounce off
  • [x] Colision angular velocity near object edges (irregular bounces)
  • [x] Have balls stop and hide when they hit bottom surface
  • [x] Add ball addition hot spots on screen with nice animation
  • [x] Colision count and box disappear
  • [x] Top score section with ball count and level and layout
  • [x] Show ball count beside first ball (on top for now)
  • [x] Calculate level and display at top
  • [x] Box bounce count calculation and display
  • [x] Add box layers and advancing
  • [x] Determine end of game when boxes advance to bottom row and add screen and show end screen
  • [x] Splash screen and icon
  • [x] Start scren
  • [x] End of game screen
  • [x] Add cheat mode to add / remove balls for testing
  • [x] Ball power up hit explosion animation that drops down to floor
  • [x] Smooth out aiming movement
  • [x] Save high score locally and show in the end screen
  • [x] Nice box tile explosion animation
  • [x] Add a “bricks” mode where levels are full shapes with pre-set number of balls (good demo mode)
  • [x] Add speed-up button that appears after all balls are in play
  • [x] Save the two game type scores separately
  • [x] Wall rebounding aiming (eg, bounce the aim line off the wall to help with gnarly angles)
  • [x] Organize constants as per best practices for React
  • [x] Move to 0.59 and use cool hooks!
  • [x] Move to the community packages for async and other deprecations
  • [x] Get working on Android!! 💪🏼
  • [ ] Add level progress indicator and use % complete instead of # of blocks for brick level completion (IN-PROGRESS)
  • [ ] Fix all the crappy hard coded sizes and make it work on iPad (flexible layouts) (IN-PROGRESS)
  • [ ] Add level progress bonuses and threshold win animations
  • [ ] Refactor entities into types
  • [ ] Add getting started instructions to the game and a swiped down animation lottie
  • [ ] Get with the times, go Typescript!
  • [ ] First ball landing spot calculation instead of having the same ball decide on next launch location
  • [ ] Animation of powerups to the first ball landing transition
  • [ ] Add tests and CI (buildkite and mac stadium?)
  • [ ] Automate production builds
  • [ ] Path finding algorithm to call the balls “home”. Not useful, but fun to try.

Download Details:

Author: jmwind

Live Demo:


#react-native #react #mobile-apps

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A Ballz inspired game with React Native
Autumn  Blick

Autumn Blick


How native is React Native? | React Native vs Native App Development

If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?

In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.

A brief introduction to React Native

Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.

React Native is a popular JavaScript framework that Facebook has created. You can use this open-source framework to code natively rendering Android and iOS mobile apps. You can use it to develop web apps too.

Facebook has developed React Native based on React, its JavaScript library. The first release of React Native came in March 2015. At the time of writing this article, the latest stable release of React Native is 0.62.0, and it was released in March 2020.

Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.

The popularity of React Native comes from its advantages. Some of its advantages are as follows:

  • Performance: It delivers optimal performance.
  • Cross-platform development: You can develop both Android and iOS apps with it. The reuse of code expedites development and reduces costs.
  • UI design: React Native enables you to design simple and responsive UI for your mobile app.
  • 3rd party plugins: This framework supports 3rd party plugins.
  • Developer community: A vibrant community of developers support React Native.

Why React Native is fundamentally different from earlier hybrid frameworks

Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.

React Native is very close to native. Consider the following aspects as described on the React Native website:

  • Access to many native platforms features: The primitives of React Native render to native platform UI. This means that your React Native app will use many native platform APIs as native apps would do.
  • Near-native user experience: React Native provides several native components, and these are platform agnostic.
  • The ease of accessing native APIs: React Native uses a declarative UI paradigm. This enables React Native to interact easily with native platform APIs since React Native wraps existing native code.

Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.

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Want to develop app using React Native? Here are the tips that will help to reduce the cost of react native app development for you.
Cost is a major factor in helping entrepreneurs take decisions about investing in developing an app and the decision to hire react native app developers in USA can prove to be fruitful in the long run. Using react native for app development ensures a wide range of benefits to your business. Understanding your business and working on the aspects to strengthen business processes through a cost-efficient mobile app will be the key to success.

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How much does it cost to develop a React Native mobile app?

React Native allows developers to develop mobile apps that have compatibility with Android, iOS & other operating systems. Due to the features like Native-like functionality and single code reusability and the access of various frameworks in the market, React Native has excelled as the most suitable framework for cross-platform mobile app development.

Why Do Businesses Prefer React Native App Development?

React Native is integrated with JS library that works as the fundamental for developing the app UI. Most businesses choose for developing React Native apps just due to their cross-platform & open-source features. A few further reasons why entrepreneurs & developers choose React Native app development include:

• Lowered Expedition Time

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• Lesser Workforce and Resources

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• In-Built Elements and Reusable Codes

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• JavaScript as Programming Language

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Factors That Decide Cost of React Native App Development

If you are an entrepreneur or start-up and looking for cost-effective app development, React Native is one of the ideal options available out there.

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React Native cost depends widely on the complexity of a project or the app requirements. The price may also vary based on business requirements. React Native app development per hour can cost from $20 and $30 per hour in India. It can vary as per different locations.

Is React Native a good choice for mobile apps development?

Yes, React Native is the best choice for mobile app development as React apps are faster to develop and it offers better quality than hybrid apps. Additionally, React Native is a mature cross-platform framework.

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