public static float[] rotateAroundCenter(
final float[] array, final float n, final float n2, final float n3) {
if (n != 0.0f) {
final float degToRad = degToRad(n);
final float sin = FloatMath.sin(degToRad);
final float cos = FloatMath.cos(degToRad);
for (int i = -2 + array.length; i >= 0; i -= 2) {
final float n4 = array[i];
final float n5 = array[i + 1];
array[i] = n2 + (cos * (n4 - n2) - sin * (n5 - n3));
array[i + 1] = n3 + (sin * (n4 - n2) + cos * (n5 - n3));
}
}
return array;
}
public float distance(final float n, final float n2, final float n3, final float n4) {
final float n5 = n3 - n;
final float n6 = n4 - n2;
return FloatMath.sqrt(n5 * n5 + n6 * n6);
}