@Test
  public void projectileMovementTest() {

    // simple movement tests
    // x direction test
    Mob testMob = new Mob(testRound, 300, 300, 5, Assets.badGuyNormal, 100);
    Projectile testProjectile =
        new Projectile(
            testRound,
            testMob.getX() + 100,
            testMob.getY() + 100,
            testMob.getX() + 100,
            testMob.getY() + 100,
            10,
            10,
            testMob);
    int[] expectedCoord = new int[] {400, 400};
    int[] actualCoord = new int[] {(int) testProjectile.getX(), (int) testProjectile.getY()};
    assertArrayEquals(expectedCoord, actualCoord);
    testProjectile.update(1);
    expectedCoord = new int[] {410, 400};
    actualCoord = new int[] {(int) testProjectile.getX(), (int) testProjectile.getY()};
    assertArrayEquals(expectedCoord, actualCoord);

    // y direction test
    testProjectile =
        new Projectile(
            testRound,
            testMob.getX(),
            testMob.getY(),
            testMob.getX(),
            testMob.getY() + 100,
            10,
            10,
            testMob);
    testProjectile.update(1);
    expectedCoord = new int[] {300, 310};
    actualCoord = new int[] {(int) testProjectile.getX(), (int) testProjectile.getY()};
    assertArrayEquals(expectedCoord, actualCoord);
  }