as4game

该游戏引擎基于actionscript3和box2D

效果演示：

http://www.citrusengine.com/

关键特性：

• Blazing 50 FPS in the browser on current machines, and 250+ FPS on the desktop (or Adobe AIR).
• Physics-based engine allows for tumbling crates, pulleys, vehicles, and just about anything else you can imagine, without the limitations of a grid.
• The Level Architect visual level editor makes it easier to create level blue prints, then tweak your level to your hearts desire.
• Robust documentation includes and ASDoc API and a developer-friendly manual.
• Standards-based code API means developers and designers spend more time tweaking the fun stuff, and less time debugging.
• Level-based progressive downloading allows gamers to start playing the game quicker by only downloading what the next level needs.