SuspendedPhan

void genTone(){
    // fill out the array
    for (int i = 0; i < numSamples; ++i) {
        // sample[i] = Math.sin(2 * Math.PI * i / (sampleRate/freqOfTone));
        sample[i] = Math.sin((2 * Math.PI - .001) * i / (sampleRate/freqOfTone));
    }

    // convert to 16 bit pcm sound array
    // assumes the sample buffer is normalised.
    int idx = 0;

chandujr

/**
* An updated version of the code by forum user Xoppa.
* You can see the original code here: https://github.com/xoppa/world/blob/master/src/com/xoppa/android/misc/RadialSprite.java
**/

import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Batch;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;