The Wiring code for the Arduino Esplora. Reads the Joystick X, Y, and Joystick Button. As well as the Up, Down, Left, and Right buttons. Then sets status to Processing sketch via Serial communication. Cat and Mouse is a two player game where my one player uses the Esplora and acts as the cat. The other user uses the computer's mouse and plays th…

CatAndMouse.ino

//////////////////////////////////////////////
// CAT AND MOUSE GAME
// Author: Mike Parks
//
//////////////////////////////////////////////

// INCLUDE LIBRARIES
#include <Esplora.h>

// DECLARE GLOBAL VARIABLES
int Xvalue = 0;
int Yvalue = 0;

int JbuttonStatus = 1023;
int upButtonStatus = 1;
int downButtonStatus = 1;
int rightButtonStatus = 1;
int leftButtonStatus = 1;

// FOR DEBOUNCING INPUTS
unsigned long ButtonTime[4] = {0,0,0,0};    //DOWN = 0, LEFT = 1, UP = 2, RIGHT = 3
unsigned long ButtonTime_Last[4] = {0,0,0,0}; 
unsigned long debounceTime = 175;



//
// SETUP ROUTINE
//
void setup(){
  Serial.begin(9600);
} 


//
// MAIN LOOP
//
void loop()
{
  // READ SENSORS  
  Xvalue = Esplora.readJoystickX();
  Yvalue = Esplora.readJoystickY();
  downButtonStatus = checkButtonStatus(SWITCH_DOWN, 0);
  leftButtonStatus = checkButtonStatus(SWITCH_LEFT, 1);
  upButtonStatus = checkButtonStatus(SWITCH_UP, 2);
  rightButtonStatus = checkButtonStatus(SWITCH_RIGHT, 3);
  JbuttonStatus = Esplora.readJoystickSwitch();
  
 
  // TRANSMIT SENSOR DATA TO PROCESSING
  // VIA SERIAL COMMUNICATIONS LINK
  Serial.print(Xvalue);
  Serial.print(",");
  Serial.print(Yvalue);
  Serial.print(",");
  Serial.print(JbuttonStatus);
  Serial.print(",");
  Serial.print(upButtonStatus);
  Serial.print(",");
  Serial.print(downButtonStatus);
  Serial.print(",");
  Serial.print(rightButtonStatus);
  Serial.print(",");
  Serial.println(leftButtonStatus);
  
  // LET THINGS SETTLE
  delay(30);
}



//
//  READ AND DEBOUNCE THE Up, DOWN, LEFT, RIGHT BUTTONS
//
int checkButtonStatus(int buttonID, int arrayID) {
  int buttonStatus = Esplora.readButton(buttonID);
  if (buttonStatus == 0) {
    ButtonTime[arrayID] = millis();
    if (ButtonTime[arrayID] - ButtonTime_Last[arrayID] > debounceTime) {
      ButtonTime_Last[arrayID] = ButtonTime[arrayID];
      return buttonStatus;

    }
    else {
      return 1;
    }
  }
  else {
    return 1;
  }
}

CatAndMouseGame.pde

//////////////////////////////////////////////
// CAT AND MOUSE GAME
// Author: Mike Parks
//
//////////////////////////////////////////////

// INCLUDE LIBRARIES
import processing.serial.*;

// DECLARE GLOBAL VARIABLES
Serial myPort;
int linefeed = 10;

int XVal = 0;
int YVal = 0;
int JbuttonPress = 1;
int upButtonPress = 1;
int downButtonPress = 1;
int rightButtonPress = 1;
int leftButtonPress = 1;

int defaultBackgroundR = 0;
int defaultBackgroundG = 100;
int defaultBackgroundB = 0;

int cursorSizeX = 10;
int cursorSizeY = 10;
int cursorAdjustX = 510;
int cursorAdjustY = 510;

int mouseScore = 0;
int catScore = 0;
int catPoints = 1;

boolean debug = true;



// 
// SETUP ROUTINE
//
void setup() {
  size(1030, 1030);
  println(Serial.list());
  myPort = new Serial(this, Serial.list()[6], 9600);
  background(defaultBackgroundR, defaultBackgroundG, defaultBackgroundB);
}


//
// MAIN LOOP
//
void draw() {
  if (JbuttonPress == 0) {  // Cat made an attack attempt
    JButtonDetect();
  }
  else {                    // No attack made this pass
    background(defaultBackgroundR, defaultBackgroundG, defaultBackgroundB);
  }
  
  checkButtons();      // Check Up, Down, Left, Right buttons and take action as needed
  refreshScreen();     // Update the output screen as needed

  if (debug) {         // Print debug data onto serial port if needed
    printDebug();
  }
}







//
// DETECT INPUT DATA PACKET FROM ARDUINO SERIAL PORT
//
void serialEvent(Serial myPort) {
  String inString = myPort.readStringUntil('\n');
  if (inString != null) {
    inString = trim(inString);
    int sensors[] = int(split(inString, ',')); 

    if (sensors.length == 7) {
      XVal = (-sensors[0])+cursorAdjustX;
      YVal = sensors[1]+cursorAdjustY;
      JbuttonPress = sensors[2];
      upButtonPress = sensors[3];
      downButtonPress = sensors[4];
      rightButtonPress = sensors[5];
      leftButtonPress = sensors[6];
    }
  }
}





//
// Determine if cat has hit the mouse
//
void JButtonDetect() {
  background(255, 0, 0);
  if (mouseX <= (XVal + cursorSizeX) && mouseX >= XVal) {
    if (mouseY <= (YVal + cursorSizeY) && mouseY >= YVal) {
    textSize(32);
    text("HIT!", 10, 30); 
    fill(0, 102, 153);
    catPoints = (200/cursorSizeX);
    catScore += catPoints;
  }
  else {
    textSize(32);
    text("MISS!", 10, 30); 
    fill(0, 102, 153);
    mouseScore += 1;
   }
 }
 else {
  textSize(32);
  text("MISS!", 10, 30); 
  fill(0, 102, 153);
  mouseScore += 1;
 }
}



//
// Check Up, Down, Left, Right Buttons
//
void checkButtons() {
  // 
  // ADJUST CURSOR SIZE
  //
  if (upButtonPress == 0 && cursorSizeX < 100) {
    cursorSizeX += 10;
    cursorSizeY += 10;
    cursorAdjustX -= 5;
    cursorAdjustY -= 5;
  }

  if (downButtonPress == 0 && cursorSizeX > 10) {
    cursorSizeX -= 10;
    cursorSizeY -= 10;
    cursorAdjustX += 5;
    cursorAdjustY += 5;
  }


  //  
  // ADJUST SCREEN COLOR
  //  
  if (leftButtonPress == 0 && defaultBackgroundG > 10) {
    defaultBackgroundG -= 10;
  }

  if (rightButtonPress == 0 && defaultBackgroundG < 250) {
    defaultBackgroundG += 10;
  }
}





//
// REFRESH SCREEN
//  
void refreshScreen() {
  rect(XVal, YVal, cursorSizeX, cursorSizeY);
  textSize(32);
  text("MOUSE SCORE: ", 100, 30); 
  text(mouseScore, 350, 30);
  text("CAT SCORE: ", 600, 30); 
  text(catScore, 800, 30);
  fill(255, 255, 255);
}






//  
// DEBUGGING RAW SERIAL DATA  
//
void printDebug() {
    print("CursorSize: ");
    println(cursorSizeX);
    print("X, Xmax: ");
    print(XVal);
    print(" ");
    println(XVal + cursorSizeX);
    print("Y, Ymax: ");
    print(YVal);
    print(" ");
    println(YVal + cursorSizeY);
    print("Mouse X: ");
    print(mouseX);
    print(" ");
    print("Mouse Y: ");
    println(mouseY);
    print("JB U/D/R/L: ");
    print(JbuttonPress);
    print(" ");
    print(upButtonPress);
    print(downButtonPress);
    print(rightButtonPress);
    println(leftButtonPress);
}