if(GuiIngame.fly)//Just use this code. I don't see a point in anyone using a tutorial for a fly hack. Sorry for making you have to Copy it though. No credits needed
        {
            onGround = false;
            motionX = 0.0D;
            motionY = 0.0D;
            motionZ = 0.0D;
            if(Keyboard.isKeyDown(57) && mc.inGameHasFocus)
            {
                motionY++;
            } else
            if(Keyboard.isKeyDown(42) && mc.inGameHasFocus)
            {
                motionY--;
            }
            double d5 = rotationPitch + 90F;
            double d6 = rotationYaw + 90F;
            boolean flag4 = Keyboard.isKeyDown(17) && mc.inGameHasFocus;
            boolean flag5 = Keyboard.isKeyDown(31) && mc.inGameHasFocus;
            boolean flag6 = Keyboard.isKeyDown(30) && mc.inGameHasFocus;
            boolean flag7 = Keyboard.isKeyDown(32) && mc.inGameHasFocus;
            if(flag4)
            {
                if(flag6)
                {
                    d6 -= 45D;
                } else
                if(flag7)
                {
                    d6 += 45D;
                }
            } else
            if(flag5)
            {
                d6 += 180D;
                if(flag6)
                {
                    d6 += 45D;
                } else
                if(flag7)
                {
                    d6 -= 45D;
                }
            } else
            if(flag6)
            {
                d6 -= 90D;
            } else
            if(flag7)
            {
                d6 += 90D;
            }
            if(flag4 || flag6 || flag5 || flag7)
            {
                motionX = Math.cos(Math.toRadians(d6));
                motionZ = Math.sin(Math.toRadians(d6));
            }
        }
        return false;
    }