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The Mistake We all make mistakes. My mistake was not understanding the code behind the categories sections that my site uses. What I wanted to do was create a new category called “Writing” that I could log my NaNoWriMo entries to. It seemed simple enough. I went into the category administration section and created a new one. My mistake was wanting to reuse the news picture. It was late at night and I was in a hurry to get to bed. In my hast I forgot that the program links the picture and category name together. Worse, I didn’t even realize I’d done something wrong.

Sorry, still no Joust. It’s not where I want it and I’ve spent July working on my novel instead. That isn't to say that I’m going to leave July without a program of the month. Instead I’ve pulled from my original site to bring you one of my favorite programs, Block £ Spear. In this game you'll find yourself at the wrong end of a knight’s spear. Fortunately, you have a shield and can easily deflect the spear by using the Z and . keys to raise or lower your shield. Sounds easy? You might be surprised.

Well, just past a week and I’m over a quarter of the way into the second half of my novel. I’m not sure this is the best way to write a book, but so far Camp NaNoWriMo has been a perfect excuse to scratch a long time itch. I’m no longer just reading about writing or scratching out silly blog entries, but putting thousands of words into Scrivener that I hope one day to publish for all to ridicule. Okay, I’m hoping the ridicule part isn’t true, but I do want to get this book to a state that I can publish and hopefully entertain someone other than myself.

Okay I haven’t finished my remake of Joust yet, nor did I want to wait until the last week of the month to get an article out. Instead, I offer you Monster Maker as June’s monthly program. It’s pretty straight forward and anti-climatic against the power of today’s programs. Once you load it, enter in five numbers and type your monster’s name. That’s it. The program will then display a nicely formatted monster description based on your input.

I actually started working on May’s program of the month, Joust, about three weeks ago. My goal was to update the program to a faster and more fluid MCODER version. Sadly, things haven’t gone so well. Pressed for time, I will leave you instead with my original take on this popular arcade from the 80s.

April has been a crazy month. I decided to try something new, pushed along by an unexpected event. I’m writing a book. I joined NaNoWriMo just after last November's event so I didn't expect to do anything until later this year. The surprise was there CampNaNoWriMo event in April. Not to waste the opportunity, I’ve been busy crafting my Sci Fi novel and am now in the final stretch to my 50,000 words goal. Add on top of that a business trip and a family trip and you'll quickly see that my ZX81 hobby gets pushed by the wayside.

For March's program of the month, I drew inspiration from one of my older demo’s, The Ball. Like many young kids from the early eighties using BASIC, I took a stab at animating a bouncing ball. It is a a relatively easy program to write depending on how complex you want to make the math. In my case, it is very simple math, no physics involved here.

For February, I give you Time, a simple landing game with a twist. Using the Z and . keys, you maneuver your craft to each successive landing pad. If you miss the landing, keep trying but be careful. Run out of time and it’s game over! How high of a score can you amass? A fair warning, Time isn’t always fair.

January’s program of the month, Fireball, marks a first for me. Although I’ve used a few different methods to type in my programs, I’ve always gone back to a Windows so I could use EightyOne to generate the program files and images. However, for my birthday, my wife took me to the Apple store and I upgraded my old laptop to a shiny new MacBook Pro.

Winter has set in and it is time to close out the year with a simple game. Dollar Sign, December’s program of the month, is that game.

For November, I’m looking both forwards and backwards. Although I wrote SNUNCH in 1983, I added a corrected version to my first ZX81 web page in the ’90s. SNUNCH was my early attempt at writing a PAC-MAN like game. Note that I said like, not clone. My goal was to be inspired, not to copy. Sadly, it isn’t very good, even after I fixed some of its logic flaws. Despite its flaws, I still believed it had potential and I set about updating it using MCODER II. It is this improved SNUNCH ML version that I offer as November’s program of the month.

Since it’s been a few months since I’ve presented an animation program, I hereby offer October’s program of the month Space Dock. Written when the space shuttle program was in full swing, Space Dock depicts a shuttle launch for its scheduled docking to repair a satellite.

October’s program of the month is S.M.P. or Sinclair Memo Pad. A simple scrolling editor that allows you to take a couple of quick notes that last as long they are on-screen.

Whoa, it’s August already? Time for another program of the month. Coming your way is Parachute, a deceptively simple reflex game that uses recognizable graphics to give you an enjoyable causal gaming diversion. I’ve been staring at this program for months now as it was sitting on the top of the stack. The airplane and parachute graphics stand out prominently in the listing, making it hard not to notice. As much as I tried to ignore it, Parachute was calling me to type it in. I finally caved and obliged.

I wasn’t sure in my last post how to remove the extra space from the program listings. Well, I figured it out.

July is almost half over, but we still have time for our program of the month: Spiders & Flies. You play a growing Venus flytrap that is searching for flies and special bugs. Use the ZX81 arrow keys to move around: 5, 6, 7, and 8. But be careful. Don’t eat the spiders lurking about or accidentally eat yourself. It’s a super easy game so you have no excuse for not trying it out.

Late and last-minute, I present April’s program of the month Star Dodge. A decidedly simple game that requires you to dodge stars randomly placed on the screen. Can you get your Tie Fighter shaped ship, an inverse H, past the increasingly more dense stars? Give it a try to see.

Well, the celebration of thirty years since the introduction of the ZX81 is now over. For the last year I've been bringing you an original ZX81 program each month as a tribute to my first computer. It was a lot of fun typing in those old programs or fixing tape recordings I made back in the eighties. I even rewrote one which brought me back to those old programming days. For those that found your way here, I hope you enjoyed my ramblings about the programs. Perhaps you've learned something or I just invoked a kinship from a fellow programmer.

I can’t believe December is here and the year is almost over. To celebrate the last program of the month, I present Creature, an animation program. Unlike many of the smaller programs submitted throughout the year, this one is the largest weighing in at 14KB. Although Creature isn’t as exciting next to more modern computer animations, I still find it interesting to see what could be done with this little machine 26 years ago. Give it a watch, enjoy the nostalgia, and try not to laugh too much.

Although I like my existing weather userbar, I really wanted an easier city search. I decided to stick with NOAA and the NWS for now and ran across a nice all in one weather page with an XML link. The XML requires latitude and longitude meaning I need to find a way to find your city from a search string. Here is where the mash-up comes in. After a quick search, I found the Google Geocoding API. It accepts just about any search string and returns the closest match with the coordinates I need. The result isn't much different, but the location is easier to read.

November is here and the year is flying by. This month’s program Lander 2 is an earlier one from 1983. Oddly, the game displays Space Lander. Not very original as I’ve used that name before. I’m using the name I noted in my listing.

I recently started using FlashControl for Chrome to control which sites use flash. I was getting annoyed with sites I ran across sucking up my computer’s CPU with flash programs. It is annoying how many sites use flash, my own included. I’d swapped out my original JavaScript slide show some time ago for Flickr’s slide show to show off my recent LEGO renderings. It always annoyed me that Flickr wrote the slide show using Flash and wouldn’t display properly on my iPod. I didn’t bother me much until FlashControl started blocking it. It was time to do something about it.

October’s program is one of my later games from 1985 which is aptly named 1985. It has decidedly simple game mechanics. Set in an alternative reality, the Earth is gone in this version of 1985. Humans are colonizing Earth II, but you need to clear the mountains for agriculture needs. Yes, your job is to hit any key to clear the land. Things couldn’t be easier, right?

This month I present another simple game, Odyssey. It doesn't include instructions, so here is a quick synopsis. An evil computer has trapped you in a space ship. To escape, you have to remove the memory boards in order to shut down the computer. Sounds familiar? Obviously this program was inspired by 2001: A Space Odyssey. To play, use “Z” to move left and “.” to move right. Hit the “M” key to remove a memory card. Try to remove all of them in time to beat the computer.

I couldn’t leave well enough alone. All that analyzing and nitpicking of the original Space Lander made me wonder what it might be like if I had rewritten it. Almost 28 years later, here is the reborn version of Space Lander 2011.