diff --git a/22 Change/java/src/Change.java b/22 Change/java/src/Change.java index 7498be8a..38177245 100644 --- a/22 Change/java/src/Change.java +++ b/22 Change/java/src/Change.java @@ -153,7 +153,7 @@ public class Change { /* * Print a message on the screen, then accept input from Keyboard. - * Converts input to Integer + * Converts input to a Double * * @param text message to be displayed on screen. * @return what was typed by the player. diff --git a/24 Chemist/java/src/Chemist.java b/24 Chemist/java/src/Chemist.java new file mode 100644 index 00000000..137b3ce5 --- /dev/null +++ b/24 Chemist/java/src/Chemist.java @@ -0,0 +1,143 @@ +import java.util.Arrays; +import java.util.Scanner; + +/** + * Game of Chemist + *

+ * Based on the Basic game of Chemist here + * https://github.com/coding-horror/basic-computer-games/blob/main/24%20Chemist/chemist.bas + *

+ * 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 Chemist { + + public static final int MAX_LIVES = 9; + + // Used for keyboard input + private final Scanner kbScanner; + + private enum GAME_STATE { + START_GAME, + INPUT, + BLOWN_UP, + SURVIVED, + GAME_OVER + } + + // Current game state + private GAME_STATE gameState; + + private int timesBlownUp; + + public Chemist() { + kbScanner = new Scanner(System.in); + + gameState = GAME_STATE.START_GAME; + } + + /** + * Main game loop + */ + public void play() { + + do { + switch (gameState) { + + case START_GAME: + intro(); + timesBlownUp = 0; + gameState = GAME_STATE.INPUT; + break; + + case INPUT: + + int amountOfAcid = (int) (Math.random() * 50); + int correctAmountOfWater = (7 * amountOfAcid) / 3; + int water = displayTextAndGetNumber(amountOfAcid + " LITERS OF KRYPTOCYANIC ACID. HOW MUCH WATER? "); + + // Calculate if the player mixed enough water + int result = Math.abs(correctAmountOfWater - water); + + // Ratio of water wrong? + if (result > (correctAmountOfWater / 20)) { + gameState = GAME_STATE.BLOWN_UP; + } else { + // Got the ratio correct + gameState = GAME_STATE.SURVIVED; + } + break; + + case BLOWN_UP: + System.out.println(" SIZZLE! YOU HAVE JUST BEEN DESALINATED INTO A BLOB"); + System.out.println(" OF QUIVERING PROTOPLASM!"); + + timesBlownUp++; + + if (timesBlownUp < MAX_LIVES) { + System.out.println(" HOWEVER, YOU MAY TRY AGAIN WITH ANOTHER LIFE."); + gameState = GAME_STATE.INPUT; + } else { + System.out.println(" YOUR " + MAX_LIVES + " LIVES ARE USED, BUT YOU WILL BE LONG REMEMBERED FOR"); + System.out.println(" YOUR CONTRIBUTIONS TO THE FIELD OF COMIC BOOK CHEMISTRY."); + gameState = GAME_STATE.GAME_OVER; + } + + break; + + case SURVIVED: + System.out.println(" GOOD JOB! YOU MAY BREATHE NOW, BUT DON'T INHALE THE FUMES!"); + System.out.println(); + gameState = GAME_STATE.INPUT; + break; + + } + } while (gameState != GAME_STATE.GAME_OVER); + } + + private void intro() { + System.out.println(simulateTabs(33) + "CHEMIST"); + System.out.println(simulateTabs(15) + "CREATIVE COMPUTING MORRISTOWN, NEW JERSEY"); + System.out.println(); + System.out.println("THE FICTITIOUS CHEMICAL KRYPTOCYANIC ACID CAN ONLY BE"); + System.out.println("DILUTED BY THE RATIO OF 7 PARTS WATER TO 3 PARTS ACID."); + System.out.println("IF ANY OTHER RATIO IS ATTEMPTED, THE ACID BECOMES UNSTABLE"); + System.out.println("AND SOON EXPLODES. GIVEN THE AMOUNT OF ACID, YOU MUST"); + System.out.println("DECIDE WHO MUCH WATER TO ADD FOR DILUTION. IF YOU MISS"); + System.out.println("YOU FACE THE CONSEQUENCES."); + } + + /* + * Print a message on the screen, then accept input from Keyboard. + * Converts input to an Integer + * + * @param text message to be displayed on screen. + * @return what was typed by the player. + */ + private int displayTextAndGetNumber(String text) { + return Integer.parseInt(displayTextAndGetInput(text)); + } + + /* + * 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.next(); + } + + /** + * Simulate the old basic tab(xx) command which indented text by xx spaces. + * + * @param spaces number of spaces required + * @return String with number of spaces + */ + private String simulateTabs(int spaces) { + char[] spacesTemp = new char[spaces]; + Arrays.fill(spacesTemp, ' '); + return new String(spacesTemp); + } +} diff --git a/24 Chemist/java/src/ChemistGame.java b/24 Chemist/java/src/ChemistGame.java new file mode 100644 index 00000000..494959a3 --- /dev/null +++ b/24 Chemist/java/src/ChemistGame.java @@ -0,0 +1,6 @@ +public class ChemistGame { + public static void main(String[] args) { + Chemist chemist = new Chemist(); + chemist.play(); + } +}