VOLCANO HANGMAN by Katie Ammons

Transcription

1 VOLCANO HANGMAN by Katie Ammons Object: To guess the five letter volcano word before the house catches on fire! Game Components: BLACK DIAL: Move this dial to chose a letter. BLUE BUTTON: Push this button to choose a letter. RED BUTTON: This button resets the game and chooses a new word. BLUE LED: This light will blink when you guess correctly. The number of blinks corresponds to the position of the letter within the five letters of the secret word. RED LED: This light will blink when your guess is wrong. Game Play: Start by resetting the game to choose a new word. Then go ahead and guess a letter. Write the letter and the corresponding position with the provided paper and pencil. Guess again until you either figure out the word or the lava flows into the village! Good luck!

2 Materials: ¼ plywood arduino usb cord 1 arduino proto shield solid and threaded wire usb to wall power converter 1 potentiometer 1 knob 2 servo motors + parts 2 buttons 2 LEDs wood screws paper duct tape super glue total cost: $68.00 for all parts including arduino ($22.00 actually spent)

3 //*********************VOLCANO HANGMAN!********************// #include <Servo.h> #define RESETBUTTONPIN 2 // define blue button as reset #define CHOOSEBUTTONPIN 3 //define yellow button as Enter and Search modes #define BLUELEDPIN 13 //for guesses and position #define REDLEDPIN 12 //for when you get something wrong Servo alpha; // create the servo that will tell us which letters we have guessed in the hangman word Servo volcano; // create the servo that indicates how dead the village is int RESETBUTTONstate = 0;//variable for reading reset button status int previousresetbuttonstate = 0; //to keep track of the state int pot = 0; // analog pin used to connect the potentiometer int val; // variable to read the value from the analog potpin int CHOOSEBUTTONstate = 0; int previouschoosebuttonstate = 0; int potletter = 0; // variable for mapped value to correspond to letters int EXPLOSIONstate = 0; //WORD STATEMENT String volcanowords[] = "erupt", "crust", "spout", "clast", "plume", "domes", "fumes", "laher", "rifts", "earth", "cones", "fires", "vents", "dikes", "rocks", "flows", "mafic"; String letters = "abcdefghijklmnopqrstuvwxyz"; String randomword = ""; char chosenletter; boolean has_letter_been_chosen = false; boolean GUESSES[5]; //five spaces that are false until game won. void setup() Serial.begin(9600); // start communicating alpha.attach(9); // attaches alpha servo to pin 9 volcano.attach(8); //attaches volcano servo to pin 8 pinmode(resetbuttonpin, INPUT); pinmode(choosebuttonpin, INPUT); pinmode(blueledpin, OUTPUT); //initiate first LED pinmode(redledpin, OUTPUT); //initiate second LED void loop() has_letter_been_chosen = false; //check if reset button pushed

4 check_if_need_reset(); //wait until user choses value(letter) on potentiometer. When chosen, return letter. readletter(); //if letter is chosen, compare the letter to the 5 letters in the random word. if(has_letter_been_chosen) compareletter(); void check_if_need_reset() //when RESETBUTTON pressed: RESET GAME and CHOSE RANDOM WORD //read state of the RESETBUTTONstate: RESETBUTTONstate = digitalread(resetbuttonpin); if(resetbuttonstate == HIGH && (RESETBUTTONstate!= previousresetbuttonstate)) Serial.println("I'm Resetting..."); volcano.write(180); //volcano servo goes back to position 0 //alpha servo goes back to position 0 EXPLOSIONstate = 0; // reset all GUESSES to false for (int i=0; i<5; i++) GUESSES[i] = false; //invoke random word selection randomword = volcanowords[random(17)]; Serial.print("..."); Serial.println(randomWord); //print chosen word //blink LEDs in resetmode digitalwrite(blueledpin, HIGH); delay(2000); digitalwrite(blueledpin, LOW); previousresetbuttonstate = RESETBUTTONstate; void readletter() //Serial.println("reading letter"); val = analogread(pot); // reads the value of the potentiometer (value between 0 and 1023)

5 potletter = map(val, 0, 1023, 25, 0); //convert potentiometer values to 27 positions int s = map(potletter,25,0, 180,0); //map converted potentiometer values to servo, so that user can double check their query. alpha.write(s); //Serial.println(s); String potposition = letters.charat(potletter); Serial.println(potPosition); CHOOSEBUTTONstate = digitalread(choosebuttonpin); if(choosebuttonstate == LOW && (CHOOSEBUTTONstate!= previouschoosebuttonstate)) chooseletter(); previouschoosebuttonstate = CHOOSEBUTTONstate; char chooseletter() Serial.println("chosing Letter"); chosenletter = letters.charat(potletter); Serial.print("chosen letter:"); Serial.println(chosenLetter); has_letter_been_chosen = true; return chosenletter; void compareletter() Serial.println("comparing Letter:"); boolean searchedletter = false; for(int i=0; i<5; i++) if(randomword.indexof(chosenletter, i) == i) Serial.println("guess correct!"); searchedletter = true; GUESSES[i] = true; //HERE: have LEDs blink according to what slot was guessed correctly. if(guesses[i] == true) for(int j=0; j<i+1; j++) Serial.println("BLINK"); digitalwrite(blueledpin, HIGH); delay(1000); digitalwrite(blueledpin, LOW); delay(1000);

6 if(!searchedletter) //letter is not found in word Serial.println("wrong!"); //erupt volcano one more step EXPLOSIONstate++; Serial.println("Explosion state:"); Serial.println(EXPLOSIONstate); delay(1500); explodevolcano(); //blink red LED delay(500); delay(500); delay(500); else check_if_won_game(); delay(1500); void explodevolcano() Serial.println("More Exploding Volcano!"); if(explosionstate == 5) GameLost(); else //increment Volcano servo to next position. Serial.println("you're running out of time..."); int volcanoposition = map(explosionstate, 5, 0, 0, 179); volcano.write(volcanoposition); delay(1500); boolean check_if_won_game() Serial.println("checking to see if you won the game:"); //check to see if all 5 slots are true int x = 0; for(int g=0; g<5; g++) if(guesses[g]) x++; if(x == 5)

7 Serial.println("YOU WIN!"); GameWon(); return true; else Serial.println("keep guessing!"); return false; void GameWon() Serial.println("running GameWon"); for(int i=0; i<5; i++) char spellword = randomword.charat(i); int s = map(spellword,122,97,0,180); //map converted potentiometer values to servo, so that user can double check their query. alpha.write(s); delay(1000); void GameLost() Serial.println("The houses are on fire! You lose the game."); volcano.write(0);