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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
268
28_Combat/java/Combat.java
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268
28_Combat/java/Combat.java
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import java.lang.Math;
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import java.util.Scanner;
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/**
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* Game of Combat
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* <p>
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* Based on the BASIC game of Combat here
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* https://github.com/coding-horror/basic-computer-games/blob/main/28%20Combat/combat.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 Combat {
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private static final int MAX_UNITS = 72000; // Maximum number of total units per player
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private final Scanner scan; // For user input
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private boolean planeCrashWin = false;
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private int usrArmy = 0; // Number of user Army units
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private int usrNavy = 0; // Number of user Navy units
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private int usrAir = 0; // Number of user Air Force units
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private int cpuArmy = 30000; // Number of cpu Army units
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private int cpuNavy = 20000; // Number of cpu Navy units
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private int cpuAir = 22000; // Number of cpu Air Force units
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public Combat() {
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scan = new Scanner(System.in);
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} // End of constructor Combat
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public void play() {
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showIntro();
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getForces();
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attackFirst();
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attackSecond();
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} // End of method play
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private static void showIntro() {
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System.out.println(" ".repeat(32) + "COMBAT");
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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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System.out.println("I AM AT WAR WITH YOU.");
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System.out.println("WE HAVE " + MAX_UNITS + " SOLDIERS APIECE.\n");
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} // End of method showIntro
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private void getForces() {
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do {
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System.out.println("DISTRIBUTE YOUR FORCES.");
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System.out.println(" ME YOU");
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System.out.print("ARMY " + cpuArmy + " ? ");
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usrArmy = scan.nextInt();
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System.out.print("NAVY " + cpuNavy + " ? ");
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usrNavy = scan.nextInt();
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System.out.print("A. F. " + cpuAir + " ? ");
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usrAir = scan.nextInt();
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} while ((usrArmy + usrNavy + usrAir) > MAX_UNITS); // Avoid exceeding the maximum number of total units
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} // End of method getForces
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private void attackFirst() {
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int numUnits = 0;
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int unitType = 0;
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do {
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System.out.println("YOU ATTACK FIRST. TYPE (1) FOR ARMY; (2) FOR NAVY;");
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System.out.println("AND (3) FOR AIR FORCE.");
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System.out.print("? ");
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unitType = scan.nextInt();
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} while ((unitType < 1) || (unitType > 3)); // Avoid out-of-range values
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do {
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System.out.println("HOW MANY MEN");
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System.out.print("? ");
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numUnits = scan.nextInt();
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} while ((numUnits < 0) || // Avoid negative values
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((unitType == 1) && (numUnits > usrArmy)) || // Avoid exceeding the number of available Army units
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((unitType == 2) && (numUnits > usrNavy)) || // Avoid exceeding the number of available Navy units
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((unitType == 3) && (numUnits > usrAir))); // Avoid exceeding the number of available Air Force units
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// Begin handling deployment type
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switch (unitType) {
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case 1: // Army deployed
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if (numUnits < (usrArmy / 3.0)) { // User deployed less than one-third of their Army units
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System.out.println("YOU LOST " + numUnits + " MEN FROM YOUR ARMY.");
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usrArmy = usrArmy - numUnits;
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}
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else if (numUnits < (2.0 * usrArmy / 3.0)) { // User deployed less than two-thirds of their Army units
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System.out.println("YOU LOST " + (int) Math.floor(numUnits / 3.0) + " MEN, BUT I LOST " + (int) Math.floor(2.0 * cpuArmy / 3.0));
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usrArmy = (int) Math.floor(usrArmy - numUnits / 3.0);
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cpuArmy = 0;
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}
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else { // User deployed two-thirds or more of their Army units
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System.out.println("YOU SUNK ONE OF MY PATROL BOATS, BUT I WIPED OUT TWO");
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System.out.println("OF YOUR AIR FORCE BASES AND 3 ARMY BASES.");
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usrArmy = (int) Math.floor(usrArmy / 3.0);
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usrAir = (int) Math.floor(usrAir / 3.0);
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cpuNavy = (int) Math.floor(2.0 * cpuNavy / 3.0);
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}
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break;
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case 2: // Navy deployed
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if (numUnits < (cpuNavy / 3.0)) { // User deployed less than one-third relative to cpu Navy units
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System.out.println("YOUR ATTACK WAS STOPPED!");
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usrNavy = usrNavy - numUnits;
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}
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else if (numUnits < (2.0 * cpuNavy / 3.0)) { // User deployed less than two-thirds relative to cpu Navy units
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System.out.println("YOU DESTROYED " + (int) Math.floor(2.0 * cpuNavy / 3.0) + " OF MY ARMY.");
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cpuNavy = (int) Math.floor(cpuNavy / 3.0);
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}
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else { // User deployed two-thirds or more relative to cpu Navy units
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System.out.println("YOU SUNK ONE OF MY PATROL BOATS, BUT I WIPED OUT TWO");
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System.out.println("OF YOUR AIR FORCE BASES AND 3 ARMY BASES.");
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usrArmy = (int) Math.floor(usrArmy / 3.0);
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usrAir = (int) Math.floor(usrAir / 3.0);
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cpuNavy = (int) Math.floor(2.0 * cpuNavy / 3.0);
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}
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break;
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case 3: // Air Force deployed
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if (numUnits < (usrAir / 3.0)) { // User deployed less than one-third of their Air Force units
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System.out.println("YOUR ATTACK WAS WIPED OUT.");
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usrAir = usrAir - numUnits;
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}
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else if (numUnits < (2.0 * usrAir / 3.0)) { // User deployed less than two-thirds of their Air Force units
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System.out.println("WE HAD A DOGFIGHT. YOU WON - AND FINISHED YOUR MISSION.");
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cpuArmy = (int) Math.floor(2.0 * cpuArmy / 3.0);
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cpuNavy = (int) Math.floor(cpuNavy / 3.0);
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cpuAir = (int) Math.floor(cpuAir / 3.0);
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}
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else { // User deployed two-thirds or more of their Air Force units
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System.out.println("YOU WIPED OUT ONE OF MY ARMY PATROLS, BUT I DESTROYED");
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System.out.println("TWO NAVY BASES AND BOMBED THREE ARMY BASES.");
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usrArmy = (int) Math.floor(usrArmy / 4.0);
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usrNavy = (int) Math.floor(usrNavy / 3.0);
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cpuArmy = (int) Math.floor(2.0 * cpuArmy / 3.0);
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}
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break;
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} // End handling deployment type
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} // End of method attackFirst
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private void attackSecond() {
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int numUnits = 0;
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int unitType = 0;
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System.out.println("");
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System.out.println(" YOU ME");
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System.out.print("ARMY ");
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System.out.format("%-14s%s\n", usrArmy, cpuArmy);
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System.out.print("NAVY ");
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System.out.format("%-14s%s\n", usrNavy, cpuNavy);
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System.out.print("A. F. ");
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System.out.format("%-14s%s\n", usrAir, cpuAir);
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do {
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System.out.println("WHAT IS YOUR NEXT MOVE?");
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System.out.println("ARMY=1 NAVY=2 AIR FORCE=3");
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System.out.print("? ");
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unitType = scan.nextInt();
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} while ((unitType < 1) || (unitType > 3)); // Avoid out-of-range values
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do {
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System.out.println("HOW MANY MEN");
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System.out.print("? ");
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numUnits = scan.nextInt();
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} while ((numUnits < 0) || // Avoid negative values
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((unitType == 1) && (numUnits > usrArmy)) || // Avoid exceeding the number of available Army units
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((unitType == 2) && (numUnits > usrNavy)) || // Avoid exceeding the number of available Navy units
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((unitType == 3) && (numUnits > usrAir))); // Avoid exceeding the number of available Air Force units
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// Begin handling deployment type
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switch (unitType) {
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case 1: // Army deployed
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if (numUnits < (cpuArmy / 2.0)) { // User deployed less than half relative to cpu Army units
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System.out.println("I WIPED OUT YOUR ATTACK!");
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usrArmy = usrArmy - numUnits;
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}
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else { // User deployed half or more relative to cpu Army units
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System.out.println("YOU DESTROYED MY ARMY!");
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cpuArmy = 0;
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}
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break;
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case 2: // Navy deployed
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if (numUnits < (cpuNavy / 2.0)) { // User deployed less than half relative to cpu Navy units
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System.out.println("I SUNK TWO OF YOUR BATTLESHIPS, AND MY AIR FORCE");
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System.out.println("WIPED OUT YOUR UNGUARDED CAPITOL.");
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usrArmy = (int) Math.floor(usrArmy / 4.0);
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usrNavy = (int) Math.floor(usrNavy / 2.0);
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}
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else { // User deployed half or more relative to cpu Navy units
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System.out.println("YOUR NAVY SHOT DOWN THREE OF MY XIII PLANES,");
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System.out.println("AND SUNK THREE BATTLESHIPS.");
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cpuAir = (int) Math.floor(2.0 * cpuAir / 3.0);
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cpuNavy = (int) Math.floor(cpuNavy / 2.0);
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}
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break;
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case 3: // Air Force deployed
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if (numUnits > (cpuAir / 2.0)) { // User deployed more than half relative to cpu Air Force units
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System.out.println("MY NAVY AND AIR FORCE IN A COMBINED ATTACK LEFT");
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System.out.println("YOUR COUNTRY IN SHAMBLES.");
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usrArmy = (int) Math.floor(usrArmy / 3.0);
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usrNavy = (int) Math.floor(usrNavy / 3.0);
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usrAir = (int) Math.floor(usrAir / 3.0);
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}
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else { // User deployed half or less relative to cpu Air Force units
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System.out.println("ONE OF YOUR PLANES CRASHED INTO MY HOUSE. I AM DEAD.");
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System.out.println("MY COUNTRY FELL APART.");
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planeCrashWin = true;
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}
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break;
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} // End handling deployment type
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// Suppress message for plane crashes
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if (planeCrashWin == false) {
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System.out.println("");
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System.out.println("FROM THE RESULTS OF BOTH OF YOUR ATTACKS,");
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}
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// User wins
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if ((planeCrashWin == true) ||
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((usrArmy + usrNavy + usrAir) > ((int) Math.floor((3.0 / 2.0 * (cpuArmy + cpuNavy + cpuAir)))))) {
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System.out.println("YOU WON, OH! SHUCKS!!!!");
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}
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// User loses
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else if ((usrArmy + usrNavy + usrAir) < ((int) Math.floor((2.0 / 3.0 * (cpuArmy + cpuNavy + cpuAir))))) { // User loss
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System.out.println("YOU LOST-I CONQUERED YOUR COUNTRY. IT SERVES YOU");
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System.out.println("RIGHT FOR PLAYING THIS STUPID GAME!!!");
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}
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// Peaceful outcome
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else {
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System.out.println("THE TREATY OF PARIS CONCLUDED THAT WE TAKE OUR");
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System.out.println("RESPECTIVE COUNTRIES AND LIVE IN PEACE.");
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}
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} // End of method attackSecond
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public static void main(String[] args) {
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Combat combat = new Combat();
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combat.play();
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} // End of method main
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} // End of class Combat
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3
28_Combat/java/README.md
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3
28_Combat/java/README.md
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Original source downloaded [from Vintage Basic](http://www.vintage-basic.net/games.html)
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Conversion to [Oracle Java](https://openjdk.java.net/)
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