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Merge pull request #178 from journich/main

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Java port of Mugwump
This commit is contained in:
Jeff Atwood
2021-03-02 20:04:38 -08:00
committed by GitHub
parent 878b4b1dba 37a9f5203d
commit 60b6ff014f
1 changed files with 186 additions and 0 deletions
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62 Mugwump/java/src/Mugwump.java Normal file
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import java.util.Arrays;
import java.util.Scanner;
/**
* Game of Mugwump
* <p>
* Based on the Basic game of Mugwump here
* https://github.com/coding-horror/basic-computer-games/blob/main/62%20Mugwump/mugwump.bas
* <p>
* Note: The idea was to create a version of the 1970's Basic game in Java, without introducing
* new features - no additional text, error checking, etc has been added.
*/
public class Mugwump {
public static final int NUMBER_OF_MUGWUMPS = 4;
public static final int MAX_TURNS = 10;
public static final int FOUND = -1;
// Used for keyboard input
private final Scanner kbScanner;
private enum GAME_STATE {
INIT,
GAME_START,
PLAY_TURN
}
// Current game state
private GAME_STATE gameState;
int[][] mugwumpLocations;
int turn;
public Mugwump() {
kbScanner = new Scanner(System.in);
gameState = GAME_STATE.INIT;
}
/**
* Main game loop
*/
public void play() {
do {
switch (gameState) {
case INIT:
intro();
gameState = GAME_STATE.GAME_START;
break;
case GAME_START:
turn = 0;
// initialise all array elements with 0
mugwumpLocations = new int[NUMBER_OF_MUGWUMPS][2];
// Place 4 mugwumps
for (int i = 0; i < NUMBER_OF_MUGWUMPS; i++) {
for (int j = 0; j < 2; j++) {
mugwumpLocations[i][j] = (int) (Math.random() * 10);
}
}
gameState = GAME_STATE.PLAY_TURN;
break;
case PLAY_TURN:
turn++;
String locations = displayTextAndGetInput("TURN NO." + turn + " -- WHAT IS YOUR GUESS? ");
int distanceRightGuess = getDelimitedValue(locations, 0);
int distanceUpGuess = getDelimitedValue(locations, 1);
int numberFound = 0;
for (int i = 0; i < NUMBER_OF_MUGWUMPS; i++) {
if (mugwumpLocations[i][0] == FOUND) {
numberFound++;
}
int right = mugwumpLocations[i][0];
int up = mugwumpLocations[i][1];
if (right == distanceRightGuess && up == distanceUpGuess) {
if (right != FOUND) {
System.out.println("YOU HAVE FOUND MUGWUMP " + (i + 1));
mugwumpLocations[i][0] = FOUND;
}
numberFound++;
} else {
// Not found so show distance
if (mugwumpLocations[i][0] != FOUND) {
double distance = Math.sqrt((Math.pow(right - distanceRightGuess, 2.0d))
+ (Math.pow(up - distanceUpGuess, 2.0d)));
System.out.println("YOU ARE " + (int) ((distance * 10) / 10) + " UNITS FROM MUGWUMP");
}
}
}
if (numberFound == NUMBER_OF_MUGWUMPS) {
System.out.println("YOU GOT THEM ALL IN " + turn + " TURNS!");
gameState = GAME_STATE.GAME_START;
} else if (turn >= MAX_TURNS) {
System.out.println("SORRY, THAT'S " + MAX_TURNS + " TRIES. HERE IS WHERE THEY'RE HIDING");
for (int i = 0; i < NUMBER_OF_MUGWUMPS; i++) {
if (mugwumpLocations[i][0] != FOUND) {
System.out.println("MUGWUMP " + (i + 1) + " IS AT ("
+ mugwumpLocations[i][0] + "," + mugwumpLocations[i][1] + ")");
}
}
gameState = GAME_STATE.GAME_START;
}
// Game ended?
if (gameState != GAME_STATE.PLAY_TURN) {
System.out.println("THAT WAS FUN! LET'S PLAY AGAIN.......");
System.out.println("FOUR MORE MUGWUMPS ARE NOW IN HIDING.");
}
}
// Infinite loop - based on original basic version
} while (true);
}
private void intro() {
System.out.println(addSpaces(33) + "MUGWUMP");
System.out.println(addSpaces(15) + "CREATIVE COMPUTING MORRISTOWN, NEW JERSEY");
System.out.println();
System.out.println("THE OBJECT OF THIS GAME IS TO FIND FOUR MUGWUMPS");
System.out.println("HIDDEN ON A 10 BY 10 GRID. HOMEBASE IS POSITION 0,0.");
System.out.println("ANY GUESS YOU MAKE MUST BE TWO NUMBERS WITH EACH");
System.out.println("NUMBER BETWEEN 0 AND 9, INCLUSIVE. FIRST NUMBER");
System.out.println("IS DISTANCE TO RIGHT OF HOMEBASE AND SECOND NUMBER");
System.out.println("IS DISTANCE ABOVE HOMEBASE.");
System.out.println();
System.out.println("YOU GET 10 TRIES. AFTER EACH TRY, I WILL TELL");
System.out.println("YOU HOW FAR YOU ARE FROM EACH MUGWUMP.");
}
/**
* Accepts a string delimited by comma's and returns the pos'th delimited
* value (starting at count 0).
*
* @param text - text with values separated by comma's
* @param pos - which position to return a value for
* @return the int representation of the value
*/
private int getDelimitedValue(String text, int pos) {
String[] tokens = text.split(",");
return Integer.parseInt(tokens[pos]);
}
/*
* Print a message on the screen, then accept input from Keyboard.
*
* @param text message to be displayed on screen.
* @return what was typed by the player.
*/
private String displayTextAndGetInput(String text) {
System.out.print(text);
return kbScanner.nextLine();
}
/**
* Return a string of x spaces
*
* @param spaces number of spaces required
* @return String with number of spaces
*/
private String addSpaces(int spaces) {
char[] spacesTemp = new char[spaces];
Arrays.fill(spacesTemp, ' ');
return new String(spacesTemp);
}
public static void main(String[] args) {
Mugwump mugwump = new Mugwump();
mugwump.play();
}
}