mirror of
https://github.com/coding-horror/basic-computer-games.git
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Removed spaces from top-level directory names.
Spaces tend to cause annoyances in a Unix-style shell environment. This change fixes that.
This commit is contained in:
Chris Reuter
186
31_Depth_Charge/java/DepthCharge.java
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186
31_Depth_Charge/java/DepthCharge.java
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import java.util.Scanner;
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import java.lang.Math;
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/**
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* Game of Depth Charge
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* <p>
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* Based on the BASIC game of Depth Charge here
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* https://github.com/coding-horror/basic-computer-games/blob/main/31%20Depth%20Charge/depthcharge.bas
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* <p>
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* Note: The idea was to create a version of the 1970's BASIC game in Java, without introducing
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* new features - no additional text, error checking, etc has been added.
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*
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* Converted from BASIC to Java by Darren Cardenas.
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*/
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public class DepthCharge {
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private final Scanner scan; // For user input
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public DepthCharge() {
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scan = new Scanner(System.in);
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} // End of constructor DepthCharge
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public void play() {
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showIntro();
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startGame();
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} // End of method play
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private static void showIntro() {
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System.out.println(" ".repeat(29) + "DEPTH CHARGE");
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System.out.println(" ".repeat(14) + "CREATIVE COMPUTING MORRISTOWN, NEW JERSEY");
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System.out.println("\n\n");
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} // End of method showIntro
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private void startGame() {
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int searchArea = 0;
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int shotNum = 0;
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int shotTotal = 0;
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int shotX = 0;
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int shotY = 0;
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int shotZ = 0;
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int targetX = 0;
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int targetY = 0;
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int targetZ = 0;
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int tries = 0;
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String[] userCoordinates;
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String userResponse = "";
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System.out.print("DIMENSION OF SEARCH AREA? ");
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searchArea = Integer.parseInt(scan.nextLine());
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System.out.println("");
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shotTotal = (int) (Math.log10(searchArea) / Math.log10(2)) + 1;
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System.out.println("YOU ARE THE CAPTAIN OF THE DESTROYER USS COMPUTER");
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System.out.println("AN ENEMY SUB HAS BEEN CAUSING YOU TROUBLE. YOUR");
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System.out.println("MISSION IS TO DESTROY IT. YOU HAVE " + shotTotal + " SHOTS.");
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System.out.println("SPECIFY DEPTH CHARGE EXPLOSION POINT WITH A");
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System.out.println("TRIO OF NUMBERS -- THE FIRST TWO ARE THE");
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System.out.println("SURFACE COORDINATES; THE THIRD IS THE DEPTH.");
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// Begin outer while loop
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while (true) {
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System.out.println("");
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System.out.println("GOOD LUCK !");
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System.out.println("");
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targetX = (int) ((searchArea + 1) * Math.random());
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targetY = (int) ((searchArea + 1) * Math.random());
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targetZ = (int) ((searchArea + 1) * Math.random());
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// Begin loop through all shots
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for (shotNum = 1; shotNum <= shotTotal; shotNum++) {
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// Get user input
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System.out.println("");
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System.out.print("TRIAL # " + shotNum + "? ");
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userResponse = scan.nextLine();
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// Split on commas
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userCoordinates = userResponse.split(",");
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// Assign to integer variables
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shotX = Integer.parseInt(userCoordinates[0].trim());
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shotY = Integer.parseInt(userCoordinates[1].trim());
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shotZ = Integer.parseInt(userCoordinates[2].trim());
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// Win condition
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if (Math.abs(shotX - targetX) + Math.abs(shotY - targetY)
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+ Math.abs(shotZ - targetZ) == 0) {
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System.out.println("B O O M ! ! YOU FOUND IT IN" + shotNum + " TRIES!");
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break;
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}
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this.getReport(targetX, targetY, targetZ, shotX, shotY, shotZ);
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System.out.println("");
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} // End loop through all shots
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if (shotNum > shotTotal) {
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System.out.println("");
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System.out.println("YOU HAVE BEEN TORPEDOED! ABANDON SHIP!");
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System.out.println("THE SUBMARINE WAS AT " + targetX + "," + targetY + "," + targetZ);
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}
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System.out.println("");
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System.out.println("");
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System.out.print("ANOTHER GAME (Y OR N)? ");
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userResponse = scan.nextLine();
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if (!userResponse.toUpperCase().equals("Y")) {
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System.out.print("OK. HOPE YOU ENJOYED YOURSELF.");
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return;
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}
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} // End outer while loop
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} // End of method startGame
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public void getReport(int a, int b, int c, int x, int y, int z) {
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System.out.print("SONAR REPORTS SHOT WAS ");
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// Handle y coordinate
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if (y > b) {
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System.out.print("NORTH");
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} else if (y < b) {
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System.out.print("SOUTH");
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}
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// Handle x coordinate
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if (x > a) {
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System.out.print("EAST");
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} else if (x < a) {
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System.out.print("WEST");
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}
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if ((y != b) || (x != a)) {
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System.out.print(" AND");
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}
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// Handle depth
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if (z > c) {
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System.out.println(" TOO LOW.");
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} else if (z < c) {
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System.out.println(" TOO HIGH.");
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} else {
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System.out.println(" DEPTH OK.");
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}
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return;
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} // End of method getReport
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public static void main(String[] args) {
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DepthCharge game = new DepthCharge();
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game.play();
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} // End of method main
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} // End of class DepthCharge
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