Box2D platform engine alternative

核心提示：Everybody should know Box2D is the best engine you can use to make a platform game.Rick Triqui, my latest game, was made with PlayCrafter that uses Box2D, and I

Everybody should know Box2D is the best engine you can use to make a platform game.

Rick Triqui, my latest game, was made with PlayCrafter that uses Box2D, and I’m starting to code my own Box2D platform engine.

Luis Fernando Silva, author of the upcoming Darkness game (Sponsors! Contact him to see the work in progress! Awesome idea!) wanted to share with us his Box2D platform engine, that made from scratch.

The source code is fully commented, for our pleasure

This is the main file:

package　{
　import　flash.display.MovieClip;
　
　//　Import　the　levels　from　the　'Levels'　folder:
　import　Levels.*;
　
　public　class　Main　extends　MovieClip　{
　　//　The　game　level,　re-instanciate　this　object　to
　　//　switch　the　levels
　　public　var　level:GameLevel;
　
　　//　Keyboard　listener,　got　the　script　at　Emanuele's　websote
　　public　var　keyboard:keys　=　new　keys(stage);
　
　　//　Constructor,　here　these　3　simple　lines　of　code　create　the　level
　　//　and　prepare　it　to　be　player
　　public　function　Main()　{
　　　level　=　new　Level1(keyboard);　//　Create　a　new　level,　Level1,　in　this　case
　　　addChild(level);　//　Add　it　to　the　display　object
　
　　　addEventListener("enterFrame",　Update,　false,　0,　true);　//　Add　a　loop
　　}
　
　　//　Update　the　game　here　using　GameLevel.Update　so　you　can　do
　　//　some　general　stuff　on　a　main　loop　instead　of　using　the　GameLevel.
　　public　function　Update(e:*)　:　void　{
　　　level.Update();
　　}
　}
}