Beetle game..trouble with a method?
I finally got the game to work (somewhat). The player keeps collecting body parts until it switches turns, then computer collects parts. However when one of the players (comp or player) gets a full beetle it still rolls...is my logic in these two methods correct?
public static void playBeetle(String playerName, boolean hasBody, boolean hasHead,
int legCount, int eyeCount, int feelerCount, boolean hasTail)
boolean playerBody = false, computerBody = false, body=false,
playerHead = false, computerHead = false, head=false,
playerTail = false, computerTail = false, tail=false;
int playerLegs = 0, computerLegs = 0, legs=0,
playerEyes = 0, computerEyes = 0, eyes=0,
playerFeelers = 0, computerFeelers = 0, feelers=0;
boolean winner = false;
boolean rollAgain = true;
boolean playerTurn = true;
String message = "";
int roll=0;
String bodyPart = "";
while(!winner)
//Sets thr generic parts into the players parts depending on who's turn it is.
if(playerTurn)
body=playerBody;
head=playerHead;
tail=playerTail;
legs=playerLegs;
eyes=playerEyes;
feelers=playerFeelers;
else
body=computerBody;
head=computerHead;
tail=computerTail;
eyes=computerEyes;
feelers=computerFeelers;
legs=computerLegs;
while(rollAgain)
if(playerTurn)
message+="\n"+playerName+":\n";
else
message+="\nCOMPUTER: \n";
message+=beetleString(body, head, legs, eyes, feelers, tail)+"\n";
roll=randomGenerator.nextInt(6)+1;
message+="\nDie roll:"+roll+"...>";
switch(roll)
case BODY:
bodyPart="body";
if(body)
rollAgain=false;
else
body=true;
break;
case HEAD:
bodyPart="head";
if(body)
if(head)
rollAgain=false;
else
head=true;
else
rollAgain=false;
break;
case LEG:
bodyPart="two legs";
if(body)
if(legs==6)
rollAgain=false;
else
legs=legs+2;
else
rollAgain=false;
break;
case EYE:
bodyPart="eye";
if(head)
if(eyes==2)
rollAgain=false;
else
eyes=eyes+1;
else
rollAgain=false;
break;
case FEELER:
bodyPart="feeler";
if(head)
if(feelers==2)
rollAgain=false;
else
feelers=feelers+1;
else
rollAgain=false;
break;
case TAIL:
bodyPart="tail";
if(body)
if(tail)
rollAgain=false;
else
tail=true;
else
rollAgain=false;
message+=bodyPart;
if(rollAgain)
message+=beetleString(body, head, legs, eyes, feelers, tail);
if(completeBeetle(body, head, tail, legs, eyes, feelers))
if(playerTurn)
message+="\n Congratulations! You won!";
else
message+="\n Computer Won! Better luck next time!";
rollAgain=false;
winner=true;
else
message+="\n Click O.K. to roll again.";
else
message+="\nSorry, you cannot use the "+bodyPart;
JOptionPane.showMessageDialog(null, message);
message="";
rollAgain=true;
//Assigns players parts back to generic parts.
if(playerTurn)
playerBody=body;
playerHead=head;
playerTail=tail;
playerLegs=legs;
playerEyes=eyes;
playerFeelers=feelers;
else
computerBody=body;
computerHead=head;
computerTail=tail;
computerLegs=legs;
computerEyes=eyes;
computerFeelers=feelers;
playerTurn=!playerTurn;
} // end method playBeetle
public static boolean completeBeetle(boolean body, boolean head, boolean tail, int legs,
int eyes, int feelers)
boolean fullBeetle=false;
if(body)
if(head)
if(tail)
if(legs==6)
if(eyes==2)
if(feelers==2)
fullBeetle=true;
return false;
} // end method completeBeetle
Your original code was fine, you only needed to change one thing...
public static boolean completeBeetle(boolean body, boolean head, boolean tail, int legs,
int eyes, int feelers)
boolean fullBeetle=false; //<-- this way you would need this
if(body)
if(head)
if(tail)
if(legs==6)
if(eyes==2)
if(feelers==2)
fullBeetle=true; // <-- here should be...
return true;
return false;
} // end method completeBeetleLogically...
You only need to return true or false, so...
if all your ifs prove true (the case you want) just return true...
if not all if are met the method will hit the return false...
this is because the compiler "kicks out of the method" when it sees a return statement, but...
this way you also must capture the result of the method call! Hope that helps!
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//******************* IMPORT STATEMENTS ************************************
import javax.swing.*;
import java.util.Random;
/** Class BeetleGame: The object of the Beetle game is to be the first player
* to complete a beetle. Players earn parts of the beetle by throwing a die.
* There is one player who plays against the computer.
* The player can play multiple games. The program does not end until the
* player indicates that he/she does not wish to play again.
* Here is a picture of a complete beetle and the numbers a player needs to
* roll to earn a body part:
* \ / 1. body
* o0o 2. head
* --*-- 3. two legs
* --*-- 4. one eye
* --*-- 5. one feeler
* v 6. tail
* See the method: displayRules to see the complete rules for the game.
public class BeetleGame
public static final int BODY = 1,
HEAD = 2,
LEG = 3,
EYE = 4,
FEELER = 5,
TAIL = 6;
public static Random randomGenerator = new Random();
//************* MAIN METHOD ********************************************
public static void main(String[] args)
boolean playAgain=false;
boolean hasHead=false;
boolean hasBody=false;
boolean hasTail=false;
boolean hasFeelers=false;
boolean hasEyes=false;
boolean hasLegs=false;
int feelerCount=0;
int eyeCount=0;
int legCount=0;
String playerName=beetleGameIntro();
while(playAgain=true)
playBeetle(playerName, hasBody, hasHead,
legCount, eyeCount, feelerCount, hasTail);
System.exit(0);
} // end main
* Controls the total play for one complete game of Beetle.
* @param playerName is the name of the player who will play against the
* computer.
public static void playBeetle(String playerName, boolean hasBody, boolean hasHead,
int legCount, int eyeCount, int feelerCount, boolean hasTail)
boolean playerBody = false, computerBody = false, body=false,
playerHead = false, computerHead = false, head=false,
playerTail = false, computerTail = false, tail=false;
int playerLegs = 0, computerLegs = 0, legs=0,
playerEyes = 0, computerEyes = 0, eyes=0,
playerFeelers = 0, computerFeelers = 0, feelers=0;
boolean winner = false;
boolean rollAgain = true;
boolean playerTurn = true;
String message = "";
int roll=0;
String bodyPart = "";
while(rollAgain)
roll=randomGenerator.nextInt(6)+1;
JOptionPane.showMessageDialog(null, playerName+": \n"+beetleString(hasBody, hasHead,
legCount, eyeCount, feelerCount, hasTail)+"\n\n Die roll: "+roll
+" ..>"+bodyPart);
switch(roll)
case 1:
bodyPart=" body";
if(body)
message="Sorry, you cannot use the body";
rollAgain=false;
else
body=true;
case 2:
if(body)
if(head)
message="Sorry, you cannot use the head";
rollAgain=false;
else
bodyPart=" head";
head=true;
else
message="Sorry, you cannot use the head";
rollAgain=false;
case 3:
if(body)
if(legs==6)
message="Sorry, you cannot use the legs";
rollAgain=false;
else
bodyPart=" two legs";
legs=legs+2;
else
message="Sorry, you cannot use the legs";
rollAgain=false;
case 4:
if(head)
if(eyes==2)
message="Sorry, you cannot use the eyes";
rollAgain=false;
else
bodyPart=" one eye";
eyes=eyes+1;
else
message="Sorry, you cannot use the eyes";
rollAgain=false;
case 5:
if(head)
if(feelers==2)
message="Sorry, you cannot use the feelers";
rollAgain=false;
else
bodyPart=" one feeler";
feelers=feelers+1;
else
message="Sorry, you cannot use the feelers";
rollAgain=false;
case 6:
if(body)
if(tail)
message="Sorry, you cannot use the tail";
rollAgain=false;
else
bodyPart=" tail";
tail=true;
else
message="Sorry, you cannot use the tail";
rollAgain=false;
while(!winner)
if(playerTurn)
else
playerTurn=!playerTurn;
} // end method playBeetle
* Determines if the body parts indicated by the values passed to the
* parameters make up a complete beetle.
* @param body is true if this beetle has a body, false if it does not
* @param head is true if this beetle has a head, false if it does not
* @param legs the number of legs this beetle has.
* Must be 0, 2, 4, or 6.
* @param eyes the number of eyes this beetle has. Must be 0, 1, or 2.
* @param feelers the number of feelers this beetle has.
* Must be 0, 1, or 2.
* @param tail is true if this beetle has a tail, false if it does not
* @return true if this beetle has a body, head, tail, 2 eyes,
* 2 feelers, and 6 legs, returns false otherwise.
public static boolean completeBeetle(boolean body, boolean head, boolean tail, int legs,
int eyes, int feelers)
return false;
} // end method completeBeetle
* Builds a String that contains only the body parts that this beetle
* has as indicated by the values passed to the parameters. The string
* includes new lines needed such that the string when printed will
* display a appropriately formatted beetle.If the beetle has no body
* parts the string returned will be "No parts yet.\n".
* @param body is true if this beetle has a body, false if it does not
* @param head is true if this beetle has a head, false if it does not
* @param legs the number of legs this beetle has.
* Must be 0, 2, 4, or 6.
* @param eyes the number of eyes this beetle has. Must be 0, 1, or 2.
* @param feelers the number of feelers this beetle has.
* Must be 0, 1, or 2.
* @param tail is true if this beetle has a tail, false if it does not
* @return
public static String beetleString(boolean body, boolean head,
int legs, int eyes, int feelers,
boolean tail)
String feelerAnswer="" ;
String eyeAnswer="";
String legAnswer="";
String tailAnswer="";
if(body==true)
if(head==true)
if(feelers==2)
feelerAnswer=" \\ /";
else if(feelers==1)
feelerAnswer=" \\ ";
else if(feelers==0)
feelerAnswer="";
if(eyes==2)
eyeAnswer=" o0o ";
else if(eyes==1)
eyeAnswer=" o0 ";
else if(eyes==0)
eyeAnswer=" 0 ";
if(legs==6)
legAnswer="--#--\n--#--\n--#--";
else if(legs==4)
legAnswer=" # \n--#--\n--#--";
else if(legs==2)
legAnswer=" # \n # \n--#--";
else if(legs==0)
legAnswer=" # \n # \n # ";
if(tail==true)
tailAnswer=" v ";
return feelerAnswer+"\n"+eyeAnswer+"\n"+legAnswer+"\n"+tailAnswer;
return "No parts yet.";
} // end method beetleString
* Displays a greeting, gets the player's name, and displays the rules
* if the player wants to see them.
* @return the player's name as input by the player.
public static String beetleGameIntro()
boolean seeRules;
String playerName;
playerName=JOptionPane.showInputDialog("Welcome to the Beetle Game! "+
"\n \n What is your name? ");
seeRules=yes("HELLO "+playerName+".\n\n Would you like to see the rules (Y/N)?");
if(seeRules)
displayRules();
return playerName;
} // end method beetleGameIntro
* Displays the rules for the Beetle game.
public static void displayRules()
String rules = "Beetle Game\n\n"
+ "Players: 2 - you and the computer.\n\n"
+ "Object: To be the first player with a complete beetle.\n"
+ " A complete beetle has a body, a head, six legs,\n"
+ " two eyes, two feelers, and a tail.\n\n"
+ "Setup: Each player starts with no parts on his/her beetle."
+ "\n\n"
+ "Play: On your turn, roll a die, and act on the result:\n"
+ " 1. If your beetle already has a body, pass the die to"
+ " the next player.\nOtherwise, add a body and roll"
+ " again.\n\n"
+ " 2. If your beetle already has a head or has no body, \n"
+ " pass the die to the next player.\n "
+ " Otherwise, add a head and roll again.\n\n"
+ " 3. If your beetle already has six legs or has no body,\n"
+ " pass the die to the next player.\n"
+ " Otherwise, add two legs and roll again.\n\n"
+ " 4. If your beetle already has two eyes or has no head,\n"
+ " pass the die to the next player.\n"
+ " Otherwise, add an eye and roll again.\n\n"
+ " 5. If your beetle already has two feelers or has no head"
+ ",\n pass the die to the next player.\n"
+ " Otherwise, add a feeler and roll again.\n\n"
+ " 6. If your beetle already has a tail or has no body,\n"
+ " pass the die to the next player.\n"
+ " Otherwise, add a tail and roll again.";
JOptionPane.showMessageDialog(null, rules);
} // end method displayRules
* Uses a dialog box to ask the yesOrNoQuestion and converts the users
* String response to the corresponding boolean value.
* @param yesOrNoQuestion is the question to be asked of the user.
* @return true if the user gives any response that begins with the
* letter 'y' (after skipping white space) in either upper or
* lower case or returns false for any other response.
public static boolean yes(String yesOrNoQuestion)
boolean yes = false;
String response = JOptionPane.showInputDialog(yesOrNoQuestion);
if(response != null)
response = response.trim().toUpperCase();
yes = response.charAt(0) == 'Y';
return yes;
} // end method yes
} // end class BeetleGameOk so i fixed the switch statement now the dialog box is correct but now i want to know how to switch to the computers turn after rollAgain ia set to false...
while(rollAgain)
roll=randomGenerator.nextInt(6)+1;
switch(roll)
case 1:
bodyPart=" body";
if(body)
message="Sorry, you cannot use the body";
rollAgain=false;
else
body=true;
break;
case 2:
bodyPart=" head";
if(body)
if(head)
message="Sorry, you cannot use the head";
rollAgain=false;
else
head=true;
else
message="Sorry, you cannot use the head";
rollAgain=false;
break;
case 3:
bodyPart=" two legs";
if(body)
if(legs==6)
message="Sorry, you cannot use the legs";
rollAgain=false;
else
legs=legs+2;
else
message="Sorry, you cannot use the legs";
rollAgain=false;
break;
case 4:
bodyPart=" one eye";
if(head)
if(eyes==2)
message="Sorry, you cannot use the eyes";
rollAgain=false;
else
eyes=eyes+1;
else
message="Sorry, you cannot use the eyes";
rollAgain=false;
break;
case 5:
bodyPart=" one feeler";
if(head)
if(feelers==2)
message="Sorry, you cannot use the feelers";
rollAgain=false;
else
feelers=feelers+1;
else
message="Sorry, you cannot use the feelers";
rollAgain=false;
break;
case 6:
bodyPart=" tail";
if(body)
if(tail)
message="Sorry, you cannot use the tail";
rollAgain=false;
else
tail=true;
else
message="Sorry, you cannot use the tail";
rollAgain=false;
JOptionPane.showMessageDialog(null, playerName+": \n"+beetleString(hasBody, hasHead,
legCount, eyeCount, feelerCount, hasTail)+"\n\n Die roll: "+roll
+" ..>"+bodyPart+"\n"+message);
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