![]() Take the text-based adventure game I had made years ago, and use these routines to add graphics to the game. The other advantage is that these drawing routines can be used within one’s own Apple ][ programs. The advantage of vector art is that file sizes are small. Instead of meticulously drawing each point on the screen, you create images programatically using a language of lines, fills and brushes. The end product is what today we would call vector art. The Graphics Magician is something altogether different though. Still, I managed to draw pixel by pixel and create masterpieces like this: In fact, it came bundled with a cardboard overlay for your keyboard so you had an immediate reference as to what the various keys did. My go to art program back in the day was always Alpha Plot from Beagle Bros. I just remember it being advertised in every computer magazine I had. But more on that later.Ĭontinued in Part IV adventure apple2 applesoft programming I was pretty sure that I could figure out a way to read the data in from an external text file. This method of declaring rooms and object will eventually make your Applesoft program very long and hard to edit. Otherwise, you might get OUT OF DATA errors. The DATA can be listed anywhere in the code and it’s important to make sure that there are exactly as many data strings as READ commands. Then, near the start of my program I read data into the array by using GOSUB to a loop like this: 5000 DATA "Room description 1","Room Description 2", ĥ005 FOR I = 1 to RM : READ RM$(I) : NEXT For the rooms I will set the size of the rooms array to the number of rooms RM by declaring DIM RM$(RM). In Applesoft you need to declare the size of an array by dimensioning it with the DIM command. The game data is set in the program by assigning strings and numbers to several arrays. By assigning a number value VB to each verb, I can use the following to branch to the various subroutines: ON VB GOSUB 1000,600,800,850. “Guess the verb” will no longer be an issue… welcome to 21st century “guess the noun” technology!Įach verb then get’s its own subroutine which contains the logic that triggers the various game actions (or provides a default message if nothing special happens). Other commands require you to hit the keystroke, then type out an object NOUN and then hit Return. This is a little annoying, but there are only so many letters in on the keyboard and I needed that D, U and S elsewhere. To move you must hit Go then enter either North, South, East, West, Up or Down. PUSH and PULL have been combined into MOVE. The verb list is largely based on the options in Monkey Island. The player will be limited to around a dozen verbs that are entered with a single keystroke. Haunted House used a simple, two-word input parser: VERB NOUN. But I wanted this new game to simplify the number of verb choices in the same way the LucasArts adventures streamlined the interface of Sierra-style adventure games. Most of the remaining code is comprised of a series of conditions that check how the player’s actions affect the objects in the game world. The bulk of the program listing consists of the game data including objects, room descriptions, verbs and state flags. Now, I’d like to go over the structure of the program listed in Write your Own Adventure Programs. The previous post in this series explained how to get Graphics Magician images to display from Applesoft. adventure apple2 applesoft javascript programming Apple ][ Graphic Adventure Part III It’s not too long and I try to keep the puzzle reasonably fair. There are full-page help screens, triggered story events, a retro-styled monochrome monitor look, and a bunch of scary sound effects! Please take a few minutes and give the game a try. It’s still a two word parser, but the vocabulary is increased. While it’s nowhere near the level of sophistication of an Infocom game, I think it does some pretty impressive stuff (for my skill level as a programmer). In other words, it’s actually fun to play. Today I am releasing my new version of the game, Haunted House: Remastered! It’s a vast improvement on the original in almost every way possible. Over the past month or so I got it in my head to push my skills as a programmer and make a much more fully realized version of the game. yeah like that’s a thing) will remember a few years ago I created a in-browser playable version of the Applesoft BASIC game Haunted House for this site.
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