When comparing ImpactJS vs Felgo (formerly V-Play), the Slant community recommends Felgo (formerly V-Play) for most people. In the question“What are the best 2D game engines?” Felgo (formerly V-Play) is ranked 41st while ImpactJS is ranked 57th. The most important reason people chose Felgo (formerly V-Play) is:
Qt-Creator IDE with Code Completion, Debugging and Profiling, integrated Quick Help, Version Control and more.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Extensive documentation available to support development
ImpactJS has an active user community that busily produces tremendous resources including videos, books, tutorials, walkthroughs and more. There are also comprehensive class documentation available.
Pro Excellent collision detection system
Impact provides 2 types of collision detection; static and dynamic collisions. Both of which are easily integrated into game development.
Pro Extendable
Many plugins are available, including one called Impact++ which adds features like pathfinding and dynamic lighting.
Pro Level editor
Built-in map editor with support for tiling, collision layers, and actors.
Pro Optimized
Works with Box2d physics library, comes with all worthwhile elements for actors built in.
Pro Truly cross-platform allowing developers to build for anything
Extending the reach of a game developed with ImpactJS is easy due to the cross-platform nature the framework. There are Considerations around performance, resolution and audio, however all can be appropriately addressed when in development. Works in the browser via Canvas, even on mobile. Easily translatable into a packaged app.
Pro Mature cross platform IDE
Qt-Creator IDE with Code Completion, Debugging and Profiling, integrated Quick Help, Version Control and more.
Pro Easy to learn
Felgo is among the easiest cross-platform tools to use according to a survey done by research2guidance.
Pro In-game level editor
With the Level Editor components, you can let your players share their levels with the whole game community which is cool because you don't need to create new levels on your own, but the community helps you with it. There are other community features like rewards for good level creators that helps getting more downloads.
Pro Felgo game network
Leaderboards, Achievements, Challenges are available across platform, even on Desktop. You can also use Cloud Syncinc of your game data that makes it easy to start a game for example on iPhone and then continue on a Nexus Tablet or the other way around.
It is also convenient because sharing to all kind of game services & networks like Facebook & Game Center is possible with a single API call. Custom hosting of Game Network servers is also possible if you want to keep the player data.
Pro Native performance
Although game logic is provided in JavaScript by you, performance-critical parts of the engine like OpenGL ES rendering or particle effects are implemented in rock-solid C++, providing the ultimate performance your game deserves.
Pro Advanced gaming components
Advanced Gaming Components for handling multiple display resolutions & aspect ratios, animations, particles, physics, multi-touch, gestures, path finding and more.
Pro Felgo build server
No need for native SDKs, Build in and Install from Cloud with the Felgo Build Server.
Pro Rapid development
Cut your development time in half. Using the QML language allows for some powerful features that cut code lines and time. Another helpful feature that can help in this area is that there are more than 50 game demos of all genres that come with full source code, meaning one can easily check to see how something was done.
Pro Support can be found in forums and via e-mail
Felgo has friendly forums where core developers participate as well as fast & helpful email support.
Pro Based on Qt framework
The Qt framework is a great and mature framework on its own. Using Qt as a game engine base is a smart idea.
Pro Runtime-balancing
You can use ready-made components to balance any of your game properties at runtime, so also on mobile devices which is great for adjusting forces or input parameters.
Pro Lots of learning resources
Helps get started and improve with lots of tutorials, demo games, examples.
Pro Social services and monetization
In-app purchases, game and social network integration (such as Game Center and Facebook), ads (with Chartboost and AdMob) and analytics (such as Flurry) are all available across platforms.
Pro Frequent updates
Every 2-4 weeks new updates provide additional features and fixes based on what users wanted the most.
Pro Level store
You can even monetize these user-generated levels with in-app purchases with the Felgo Level Store component if you like.
Cons
Con Inactive
The last update was in 2014.
Con Cost of $99
While most HTML5 frameworks are offered as free open source projects, ImpactJS has a one time cost and no free option.
Con No 3rd party tutorials
There are little to none amount of tutorials for Felgo other than what was made by the engine developers themselves.
