How to implement a physics engine?

I need an Android Engine that can handel 2d explosions and gravitational physics?

• Answer:

  You want features like sprite animation and rigid body physics. Then use any game engine with Box2D or Chipmunks physics engine integrated. You you can use the android port of Box2D or Chipmunks with your sdk. Btw, are you using any game engine or just using Android SDK. If you are using just Android SDK then I should say there is many game engine for Android platform available with sprite animation , particle effects and physics engine included. You can always roll your own or code everything yourself but this things are already done there. Here are options what you can do : 1. Grab an android game engine (physics + particle effect + sprite animation included) 2. Grab Android port of Box2D or Chipmunks and integrate it with Android SDK. Roll your own code for particle effect and sprite animation 3. Code everything yourself , if you think you are smart. Here are some list of game engine you can check 1. LibGDX : http://code.google.com/p/libgdx/ 2. Cocos2D-Android : http://code.google.com/p/cocos2d-android/ 3. e3droid : http://www.e3roid.com/ I think LibGDX or e3droid would be a good choice both have box2D physics engine and many other features. I personally tried libGDX and it is awesome, you can even make games for PC with libGDX. To port it to android you need to add only 6 lines of code, that's it. Choosing a game engine is always a better option if you really want to concentrate on making games than programming games.