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Found 3 results

  1. I need you to review the code of my new render engine or at least use it so you can give me feedback and report errors, if you need new documentation or anything just tell me. I'll add more things to the engine I'm tiking about support for 3D graphics and that a lot of code that will be added so I want to make sure that the current code works correctly. this is the repo: https://github.com/LuisHerasme/dibujo When I have this complete I will continue working in my game engine https://github.com/LuisHerasme/LienzoEngine My github page. https://luisherasme.github.io/
  2. Hello everyone, Recently i finished my first medium-sized HTML5 game - Medieval Defense Z. I came from flash background and developing for HTML5 presented with some new challenges. So i would like to share what worked and what didn't. This is more like review/tutorial type of thing, so hopefully someone will find something useful. • Goals: • 60fps. • Smooth gameplay and animations. • Quality comparable to flash games. • Tools: • Language: Haxe. Strictly typed programming language, similar to ActionScript 3.0. Compiles to all major languages, including javascript. • Editing: HaxeDevelop IDE. Freeware, great code completion and very fast compared to everything i tried. • Debugging: Chrome. Has console, debugger and profiler. • Rendering library: Pixi.js. Uses display list concept like flash. Works well. • Sound library: Howler. Good enough, the id system is a bit weird though. • Bitmap font exporter: http://kvazars.com/littera/. Free and web-based. • Sprite Sheet Packer: https://spritesheetpacker.codeplex.com/. Freeware and very simple. • Graphics: • Scaling will look ugly if you use many small png files for textures. • If you want nice scaling, fast load times and fast rendering - pack everything to 2048x2048 spritesheets (include bitmap fonts too). • Resolution of assets: 1024x768, background can extend to 1382x768, so it covers most aspect ratios in horizontal orientation. • To get proper native resolution in mobile browsers i scaled up renderer and scaled down canvas by window.devicePixelRatio. • Sounds: • Library: Howler. • Sound formats: ogg for Chrome and Firefox, m4a for Safari and Internet Explorer (note: mp3 has licensing issues with play count). • ffmpeg: because of licensing issues and whatnot can't convert to m4a, unless you recompile ffmpeg with m4a, which is a pain to setup. • I used MediaHuman Audio Converter (freeware) to convert from wav to ogg and m4a (64 bit). • iOS Safari: keep in mind that before any sound could be played, user must first tap on the screen. • Mouse Events: • Used pixi.js API to open links. • iOS Safari: window.open under "touchstart" event won't open links in new tabs, use "tap" event instead. • sprite.on("mousedown", callback) for desktop. • sprite.on("tap", callback) for mobile. • Performance: • Reuse frequently used sprites. • Avoid creating too many objects every frame. • I would recommend looking up data-oriented programming to get more juice out of Javascript. • Record timeline with Chrome profiler to find performance bottlenecks. • Masks are slow. Use trim if you only need a simple cut. • Very large functions may cause lag spikes. My best guess is that browser is trying to optimize the function. Splitting big function into several smaller ones solved my problem. • Game Debugging: • Simple CSS + DOM side menu. • Basic field view/edit. • Simple buttons with callbacks. • How to debug html5 game on android (mobile) with desktop chrome (PC): 1. Upload game to your website. 2. Go to (desktop) chrome: chrome://inspect 3. Connect Android device with USB and run your game on android chrome (your android device must be enabled for development). 4. Open Command Prompt and enter: adb devices (must have Android Debug Bridge installed). 5. To quit debugging enter: adb kill-server • Conclusions: • Programming in Haxe instead of pure Javascript probably saved hours and hours of debugging. • Would have liked more automated solution for spritesheet and sound stuff. • Poor performance bites sooner or later, so be prepared to do extensive profiling. • Stable 60fps is very hard to achieve, even if you keep your code below 1-2ms per frame. • Overall i am happy with the results, however it took longer than expected to make this game. Any feedback is appreciated. Game Link: http://html5games.vooxe.com/a90bd3f1fba643828ccfb0109b41a252/index.html Trailer:
  3. recently we found this nice blog http://firefoxosgaming.blogspot.com/ and we wonder are there any other html5 game reviewers?