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>> ARDUINO - FROGGER
Komnami introduced Frogger to the world in 1981 - so much time I lost as a child!
A few days ago my Gameduino shield arrived and I decided to plug it in and tinker a little bit.
After running through the suite of demo examples; I did remember seeing that
the creators of the Gameduino shield actually did a series of tutorials
explaining how to convert the original classic Frogger game over the device:
For convenience and to get directly into it - I simply downloaded the final
scene and compiled it within the arduino workbench - in a matter of seconds
I had the game showing in glorious 400x300 resolution pixel doubled over a
VGA screen to 800x600 on a TFT monitor. All I wanted to do now was play the
game - so, it was time to search around see what electronics I would piece
together to create some form of controller unit and interface for it.
I found a Parallax 2-axis analog controller and a breadboard shield for the
arduino which would be much better than trying to wire up some crude digital
switches that probably wouldn't survive the bashing the unit was about to
receive. Also, the code provided assumed there that the input was digital but
I had an analog controller on my hands so of course this meant making some
small modifications to the code:
#define ANALOG_MAX 1023
#define ANALOG_THRES 10
prev = 0;
byte r = 0;
// process the up/down analog input
val = analogRead(3);
if (val > ANALOG_MAX-ANALOG_THRES) r |= CONTROL_UP;
if (val < ANALOG_THRES) r |= CONTROL_DOWN;
// process the left/right analog input
val = analogRead(2);
if (val > ANALOG_MAX-ANALOG_THRES) r |= CONTROL_RIGHT;
if (val < ANALOG_THRES) r |= CONTROL_LEFT;
byte edge = r & ~prev;
prev = r;
The complete configuration ended up nice and compact as well:
A quick recompile and making sure all my inputs were wired correctly and
I would play Frogger to my hearts content and lose more valuable hours
from my life. The game is in its a basic form; but someone has taken it to
another extreme by building a complete game cabinet and implementing a
suite of new features - someone has too much time to spare!
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