Dice shaking (mobile)

You need to break this down, then resolve all the smaller problems.

1/ create a dice.

2/ make the dice roll on command.

3/ work out how to deter$$anonymous$$e when the dice has stopped rolling, and deter$$anonymous$$e the face that is facing up.

4/ use the accelerometer to trigger the dice-roll.

some reading to get you started : https://www.google.com/search?btnG=1&pws=0&q=unity+dice+roll

i just want to add a force to an object in a physic 3d world according to accelerometer value changes. This is the main problem.

Not sure why that should be a problem, Input.acceleration gives a Vector3 value, and Rigidbody.AddForce takes a Vector3 value. All you have to do is make sure the axes are lined up and have the right size value.

some links: http://docs.unity3d.com/Documentation/ScriptReference/Input-acceleration.html

http://docs.unity3d.com/Documentation/ScriptReference/Rigidbody.AddForce.html

Have a look at the Unity Examples for learning to use and implement the accelerometer : http://unity3d.com/support/resources/example-projects/iphone-examples

Download and look at Roll-A-Ball =]

also http://answers.unity3d.com/questions/63433/moving-an-object-with-accelerometer-using-unity-ip.html

How did you go? Another link has just popped up in the answers : http://vimeo.com/48791493

I think your question is more about detecting the magnitude of the change in accelerometer value over time. So in the first moment, you read the outputs of accelerometer, then in the next moment you read again and compare the change in value. If that change is greater than a certain amount, you know how much the phone has moved within a certain timeframe. If that value is greater than some small number, then shake the dice by the amount of change in the accelerometer. I havn't played with accelerometers myself yet, but your question has made me curious and I shall do some experimenting of my own. Don't give up, and keep searching for videos that may help.