java - How to adjust accelerometer data for phones held in different positions. -


i'm making libgdx game using android studio alien ufo has avoid incoming asteroids, , ufo moves using accelerometer data. 

    //gets , smoothens accelerometer data. values x , y switched because game played in landscape mode.      currentaccelerometerx = gdx.input.getaccelerometery();     currentaccelerometerx = currentaccelerometerx * alpha + lastaccelerometerx * (1 - alpha);     currentaccelerometery = gdx.input.getaccelerometerx();     currentaccelerometery = currentaccelerometery * alpha + lastaccelerometery * (1 - alpha);      //moves alien     alien.alienx += (currentaccelerometerx * 5);     alien.alieny -= (currentaccelerometery * 5);      lastaccelerometery = currentaccelerometery;     lastaccelerometerx = currentaccelerometerx;

this code works when phone being held of phone parallel floor, such position can uncomfortable play in after while. wondering how take account current rotation of device , adjust movement of ufo accordingly.

the problem seems y position of alien, meaning x accelerometer data of phone(the values switched since game played in landscape mode). when phone held @ angle floor, ufo stays near bottom edge of screen.

jollygoodsir, when new game starts, take snapshot of current state of accelerometer , set base point. when check state of accelerometer changes see how tilt being changed, compare delta base value. game calibrate whatever position held device in when game started. happy days :-)


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