Final Project Team 8: Hidden Folks Game Controller

Our game controller is made to reflect the theme of the game Hidden Folks. In the game, players must search through mini landscapes to find certain people, things, or objects. The game, which consists of a black and white color palette, has simple inputs, consisting of zoom in/zoom out buttons, a select button, and a pan button to move across the landscape.Due to the overall simplistic nature of the game, we chose to carry the theme into the controller by creating a treasure map controller. The controller consists of two cylinders and a middle portion, which simultaneously give the player somewhere to grab onto and also visually represent the two scroll portions of an ancient map. The middle portion is decorated overtop with a handdrawn map, integrating both a light sensor and a touchpad into the layout.

Controller Image:

Schematic:

Code:

#include <Mouse.h>

#include <Adafruit_CircuitPlayground.h>

// ---------------- PINS ------------------

// making variables for each pin and what it connects to on the CPE

const int fsrPin = A1;

const int lightSensorPin = A2;

const int potPin = A3;

// ---------------- STATES ----------------

// variables used for keeping info to reference later

bool leftHeld = false;

int lastPotValue = 0;

// ---------------- SETUP -----------------

void setup() {

  // circuit and mouse tracking, along with the 3 analog inputs

  Serial.begin(9600);

  CircuitPlayground.begin();

  Mouse.begin();

  pinMode(fsrPin, INPUT);

  pinMode(lightSensorPin, INPUT);

  lastPotValue = analogRead(potPin);

}

// ---------------- LOOP FUNCTIONS ------------------

void loop() {

  // repeated functions

  handleSensors();

  handleTilt();

  handlePot();

  //lightCheck();

  //fsrCheck;

 

  delay(10);

}

/*void lightCheck() {

  // checking light values

  int lightVal = analogRead(lightSensorPin);

  Serial.print("Light Sensor Value: ");

  Serial.println(lightVal);

  delay(200);

}

*/

/*void fsrCheck() {

  // checking pressure values

  int fsrReading;

  fsrReading = analogRead(fsrPin);

  Serial.print("Analog Reading = ");

  Serial.print(fsrReading);

  delay(200);

}

*/

// ---------------- SENSOR HANDLING ----------------

void handleSensors() {

  // variables to get readings on each sensor / how it activates

  int fsrVal = analogRead(fsrPin);

  int lightVal = analogRead(lightSensorPin);

  bool fsrPressed = fsrVal > 500;              // pressure pad threshold

  bool lightTriggered = lightVal < 600;        // darkness threshold

  // ---------- PRESSURE PAD = HOLD ------------

  // hold down mouse when fsr pressure increases

  if (fsrPressed && !leftHeld) {

    Mouse.press(MOUSE_LEFT);

    leftHeld = true;

  }

  else if (!fsrPressed && leftHeld) {

    Mouse.release(MOUSE_LEFT);

    leftHeld = false;

  }

  // ---------- LIGHT SENSOR = PRESS ----------

  // light sensor activating in darkness presses left click

  static bool lastLightState = false;

  if (lightTriggered && !lastLightState) {

    Mouse.click(MOUSE_LEFT);

  }

  lastLightState = lightTriggered;

}

// ---------------- TILT ----------------

// tilt movement around the screen, adjusting speed as needed

void handleTilt() {

  float x = CircuitPlayground.motionX();

  float y = CircuitPlayground.motionY();

  int moveX = x * 2;

  int moveY = y * 2;

  // dead zone

  if (abs(moveX) < 2) moveX = 0;

  if (abs(moveY) < 2) moveY = 0;

  Mouse.move(moveX,moveY);

// ---------------- POTENTIOMETER ----------------

void handlePot() {

  // potentiometer zooms in and out

  int potValue = analogRead(potPin);

  static int lastPotValue = 0;

  // smooth the reading

  static int potFiltered = 0;

  potFiltered = (potFiltered * 3 + potValue) / 4;

  int diff = potFiltered - lastPotValue;

  if (abs(diff) > 25) {

    int scrollAmount = diff / 30;

    // ignore zoom if fsr or light is active

    if (!leftHeld) {

      Mouse.move(0, 0, scrollAmount);

    }

    lastPotValue = potFiltered;

  }

}

Video: