Finally! The ROM You Wished Your Sinclair Spectrum Had!

If there is one thing that Sir Clive SInclair was famous for, it was producing electronic devices that somehow managed to squeeze near-impossible performance out of relatively meagre components. This gave us some impressive products, but it’s fair to say that sometimes this philosophy pushed the envelope a little too far. Thus even some of the most fondly remembered Sinclair products concealed significant flaws, and this extended to both their hardware and their software.

Sir Clive never gave us this!
Sir Clive never gave us this!

The SInclair ZX spectrum’s ROM for example had more than its fair share of bugs, and its BASIC programming experience with single keypress was unique but also slow to run. It’s something [Jonathan Cauldwell] has addressed with his Arcade Game Designer ROM, a complete and ready to run replacement for the original Spectrum ROM that contains a scripting language, a compiler, editors for in-game assets, and a game engine upon which to run your games. It’s the ROM you wanted back in 1983, when you were struggling to fit a bit of Z80 code in a Sinclair Basic REM statement.

If you’re a Spectrum enthusiast and think this sounds a little familiar then you are of course correct. It builds upon his past work with his Arcade Game Designer, with the distribution by ROM allowing the developer to use the full 48k available on all but a very few early 16k machines. You’ll need your own EPROM on which to burn it, but we suspect that if you’re the kind of person who has a Spectrum and has writing these games in mind, you already have access to the relevant equipment.

If you’re new to all this Spectrum stuff and where its ROM came from, then maybe it’s time for a trip down memory lane.

Simple Sprite Routines Ease Handheld Gaming DIY

Making your own handheld games is made much easier with [David Johnson-Davies’] simple sprite routines for the Adafruit PyBadge and PyGamer boards. Sprites can be thought of as small, fixed-size graphical objects that are drawn, erased, moved, and checked for collision with other screen elements.

xorSprite() plots an 8×8 sprite, moveSprite() moves a given sprite by one pixel without any flicker, and hitSprite() checks a sprite for collision with any screen elements in a given color. That is all it takes to implement a simple game, and [David] makes them easy to use, even providing a demo program in the form of the rolling ball maze shown here.

These routines work out-of-the-box with the PyBadge and PyGamer, but should be easy to adapt to any TFT display based on the ST7735 controller. The PyGamer is the board shown here, but you can see the PyBadge as it was used to create an MQTT-enabled conference badge.

If you really want to take a trip down the rabbit hole of sprite-based gaming graphics, you simply can’t miss hearing about the system [Sprite_TM] built into the FPGA Game Boy badge.

Game Builder Lets Kids — Even Old Kids — Build Games

One rite of passage back in the good old days of owning a TRS-80, Commodore 64, or similar vintage computer was writing your own game. It probably wouldn’t be very good, but it wouldn’t be much worse than most of the stuff that was out there, either. Today, trying to get a kid interested in “hunt the wumpus” is probably not going to fly and having them create a modern-looking game is out of the question. Or is it? Disguised as a game itself, Game Builder offers an interactive way to create interesting games without having to get too detailed into programming. On the other hand, it supports JavaScript, so you can get to programming if you need to or want to. We could easily see a kid — or even an adult — easing into programming using this game which is free, from Google.

In the old days, hardware was a limiting factor and Basic made it pretty easy to whip out some text or crude graphics. Our favorite was a high low game that guesses your number. But everyone had some little game they’d create so they said they could. Today’s games, though, have good graphics and music and 3D shapes and a host of other things you didn’t have to contend with back then. Game Builder, though, makes it pretty simple. You can work on a game by yourself, or with friends, or with the general public. Everyone involved can play the game, but they can also edit the game. The tool runs under Steam so even though it is marked for PC or Mac, it will also run on Linux if you have Steam installed properly.

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