About two months ago I created this little WebGL game (and a smaller version here) for a graphics course at school. The code can be found here on GitHub and the documentation here.

The course was mostly OpenGL, and I figured I should try making a project in WebGL, since it’s similar but more easily accessible (i.e., anyone with a capable web browser can play it). Decided it’d be cool to try a 2.5D game, and while brainstorming ideas, stumbled upon Bitworld, which seemed like the kind of environment I wanted to try making. So after looking up a bunch of tutorials on WebGL, javascript libraries, lighting methods, and billboarding, I came up with this.

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Here is the completed room mapping final project! Since last time, I’ve added a very useful smoothing option that makes the plot look less like a bunch of random jagged edges and more like a recognizable shape. There’s also an option to choose different types of shapes to plot with, which makes for some pretty artsy-looking results. It is surprisingly fun to play around with the smoothing options, textures, and shape types, as you can see me doing in the video.

The Arduino/Processing source code can be found here, and if you just want to play around with the plotting program (I’ve included some sample files), you can download an exe file here. You’ll need the ControlP5 library if you want to modify/run the Processing code (not necessary for the exe).

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My final project for the Arduno microcontroller class is this 3D room mapping thing. It still needs some work but here’s basically what it looks like. An ultrasonic distance sensor is mounted on a servo (which is mounted on another servo), and records the distance of objects located at various angles. Two angles and a distance from the center make up a spherical coordinate system, and those coordinates can be plotted.

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Made a cave-navigation game using a Spectra Symbol softpot. The resistance of the softpot changes depending on where you press it, so you can do an Arduino analogRead() on the voltage output to determine where the circle goes on the screen. You have to make sure to add a resistor (I think I used a 100k resistor) going from the middle pin to ground (or power), or else the output floats.

Code available in the full post.

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One of the microcontrollers assignments we had was to create a program in Processing that plotted the data from a sensor. In this video, it’s plotting data from a Maxbotix EZ1 distance sensor.

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