These tutorials focus mainly on OpenGL, Win32 programming and the ODE physics engine. OpenGL has moved on to great heights and I don't cover the newest features but cover all of the basic concepts you will need with working example programs.
Working with the Win32 API is a great way to get to the heart of Windows and is just as relevant today as ever before. Whereas ODE has been marginalized as hardware accelerated physics becomes more common.
Games and graphics utilities can be made quickly and easily using game engines like Unity so this and Linux development in general will be the focus of my next tutorials.
To the Children of the Modern Age and Beyond
By Alan Baylis
God said "Go forth and multiply" and Jesus said "Know thyself". Everybody has a gland in their body which is called the 'endorphin gland'. This gland is responsible for releasing a natural substance called 'endorphins' into the bloodstream to relieve pain in the body. When the body experiences extra pain this gland releases more endorphins and the pain is relieved. If a child was born without this gland working, then the child would have to take morphine on a daily basis to prevent the body's natural pains, such as the joints rubbing and muscle fatigue, etc, from being unbearable. Heroin is an artificial endorphin. If a healthy person, with a normally functioning endorphin gland, takes heroin then their body will sense both the endorphins and the heroin in the bloodstream and rightly calculate an excess; so it turns off the endorphin gland. The person taking heroin for the first time will delight at having extra relief from pain when there is no pain to overcome, but because it is externally administered the heroin soon wears off and the user will experience their body without natural endorphins. This is the painful withdrawal period which lasts until their endorphin gland starts producing endorphins again (1 to 2 weeks depending on how much their endorphin gland was 'shut down'.) The real problem arises when a person takes even more heroin to relieve their pains rather than waiting until their endorphin gland restarts. Not only is it a very short term fix to their problem, it also shuts down their endorphin gland further and their withdrawal pains are more intense. So a cycle of drug dependency begins and the constant need to relieve the withdrawal pains means that the user has to spend an exorbitant amount on purchasing heroin and surely their priorities change and all other matters in their life are put second. Heroin and endorphins are also muscle relaxants, so a regular user is most in danger when they have been 'clean' from heroin for a week or two. Not realizing that their endorphin gland has restarted the production of endorphins, if they then take their 'regular' amount (which may have increased to a large amount since they began) then their heart, being a muscle, relaxes to the point of stopping.
The best solution is most likely a clinical and systematic 'weaning off' of the drug until the patient's endorphins are at a normal level.
But getting and staying clean is only one of the problems; the other may require a longer period to overcome. The body is designed with a reward system. Endorphins and other chemicals to make us feel good are released into the bloodstream and then the brain as a reward when a person achieves a necessary task. For a baby this may be the simple act of moving its arms, but as this task becomes learnt the reward becomes less and the baby will find that doing a new task is necessary to receive the reward; in this way the baby learns how to do the necessary tasks for survival. An adult may have progressed to the point where the reward is only given for very complex tasks such as driving a car for the first time. Users of heroin however have artificially experienced a high level of reward without doing a task, except the act of taking the heroin which may be reinforced as a good thing to the user because they experience the reward. Even after getting clean the user will find that the natural amount of reward isn't worth performing for and they will be disinterested in most tasks until their body normalizes.
The endorphins and other chemicals are also used as a reward during the conception process. As an impetus to breeding and to relieve the aches of the physical act, the body releases a larger amount of endorphins at the point of orgasm. This is why the natural drive is so strong and also why it can become habit forming. It is also why advertising uses the theme to sell their products, they are simply taking advantage of our natural drive by suggesting that their product is going to improve our chances of getting a mate.
Sport is also prone to gland problems. During exertion and competition the endorphin gland and the adrenal gland release a larger amount which, over time, becomes the body's normal amount. If they then cease from sport then they will feel the emotional effects of the withdrawal. Adrenaline is also over produced during a fight, which implies that a person involved with a very physical and competitive sport would be more conditioned to high levels of adrenaline and more likely to enter into a fighting situation. For long distance running and other endurance sports there is a point when they 'break the pain barrier' which is said to be pleasurable, it is at this point of physical exhaustion that the endorphin gland goes into over production to compensate for the extreme pain.
Jesus also said "Moderation in all things".
For info on how the devil will use our own desires against us, read the Bible.