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Command pattern over actions - tested, it works

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This commit is contained in:
Claudio Maggioni 2022-11-21 16:36:38 +01:00
parent 05a63e0399
commit 40675f5a39
22 changed files with 666 additions and 339 deletions
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327
src/main/java/com/github/dtschust/zork/Zork.java
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@ -6,14 +6,13 @@
package com.github.dtschust.zork; package com.github.dtschust.zork;
import com.github.dtschust.zork.parser.ZorkGame; import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.types.*;
import com.github.dtschust.zork.parser.ZorkReader; import com.github.dtschust.zork.parser.ZorkReader;
import com.github.dtschust.zork.repl.ActionDispatcher;
import com.github.dtschust.zork.types.ZorkContainer;
import com.github.dtschust.zork.types.ZorkObject;
import java.util.Map;
import java.util.Scanner; import java.util.Scanner;
import static java.util.Map.entry;
/* And away we go*/ /* And away we go*/
public class Zork { public class Zork {
@ -30,14 +29,16 @@ public class Zork {
/* Print out the first entrance description, starting the game!*/ /* Print out the first entrance description, starting the game!*/
System.out.println(game.getCurrentRoom().description); System.out.println(game.getCurrentRoom().description);
ActionDispatcher d = new ActionDispatcher(game);
/* There is no stopping in Zork, until we're done!!*/ /* There is no stopping in Zork, until we're done!!*/
while(game.isRunning()) { while (game.isRunning()) {
userInput = source.nextLine(); userInput = source.nextLine();
/*Now that we have the user command, check the input*/ /*Now that we have the user command, check the input*/
if (!executeTriggers()) { if (!executeTriggers()) {
/* If we haven't skipped, perform the user action*/ /* If we haven't skipped, perform the user action*/
executeAction(userInput); d.dispatch(userInput);
/* Clear the user input, and check the triggers again (various states have changed, gnomes need to be found!*/ /* Clear the user input, and check the triggers again (various states have changed, gnomes need to be found!*/
userInput = ""; userInput = "";
@ -59,317 +60,14 @@ public class Zork {
new Zork(args[0]); new Zork(args[0]);
} }
public void executeAction(String input) {
String[] action = input.split(" ");
/* Update: figure out what type of item it is, and then change it's status*/
if (action[0].equals("Update")) {
doActionUpdate(action[1], action[3]);
}
/*Game Over: pretty straight forward*/
else if (input.equals("Game Over")) {
doActionGameWon();
}
/* Add: figure out what type the destination is, then what type the object is. Then add object to destination if it makes sense */
else if (action[0].equals("Add")) {
doActionAdd(action[1], action[3]);
}
/* Delete: figure out what object it is and delete it accordingly. Rooms are especially tricky */
else if (action[0].equals("Delete")) {
doActionDelete(action[1]);
}
/*If it's not a "Special Action", just treat it normally */
/* Execute a user action or an action command from some <action> element that is not one of the "Special Commands"*/
/* Movement */
else if (action[0].length() == 1 && "nswe".contains(action[0])) {
doActionMove(action[0]);
}
/* Inventory */
else if (action[0].equals("i")) {
doActionInventory();
}
/* Take */
else if (action[0].equals("take") && action.length > 1) {
doActionTake(action[1]);
}
/* Open Exit (you should be so lucky)*/
else if (input.equals("open exit")) {
doActionOpenExit();
}
/* Open a container */
else if (action[0].equals("open") && action.length > 1) {
doActionOpenContainer(action[1]);
}
/* Read an object */
else if (action[0].equals("read") && action.length > 1) {
doActionReadObject(action[1]);
}
/* Drop an item*/
else if (action[0].equals("drop") && action.length > 1) {
doActionDropItem(action[1]);
}
/* Put an item somewhere */
else if (action[0].equals("put") && action.length >= 4) {
doActionPutItem(action[1], action[3]);
}
/* Turn on an item*/
else if (input.startsWith("turn on") && action.length >= 3) {
doActionTurnOn(action[2]);
}
/* Attempt an attack, you feeling lucky?*/
else if (action[0].equals("attack") && action.length >= 4) {
doActionAttack(action[1], action[3]);
}
/* Invalid command*/
else System.out.println("Error");
}
private void doActionGameWon() {
System.out.println("Victory!");
game.setGameOver();
}
private void doActionAdd(String object, String destination) {
String objectType;
objectType = game.getTypeFromLookup(object);
String destinationType = game.getTypeFromLookup(destination);
if (destinationType.equals("room")) {
ZorkRoom tempRoom = (ZorkRoom) game.get("room", destination);
if (objectType.equals("item"))
tempRoom.item.add(object);
else if (objectType.equals("creature"))
tempRoom.creature.add(object);
else if (objectType.equals("container"))
tempRoom.container.add(object);
else
System.out.println("Error");
game.put("room", tempRoom);
} else if (destinationType.equals("container")) {
ZorkContainer tempContainer = (ZorkContainer) game.get("container", destination);
if (objectType.equals("item"))
tempContainer.item.add(object);
else
System.out.println("Error");
game.put("container", tempContainer);
} else {
System.out.println("Error");
}
}
private void doActionDelete(String object) {
String objectType = game.getTypeFromLookup(object);
if (objectType.equals("room")) {
for (ZorkRoom tempRoom : (Iterable<ZorkRoom>) game.values("room")) {
for (String key : tempRoom.border.keySet()) {
if (tempRoom.border.get(key).equals(object)) {
tempRoom.border.remove(key);
}
}
game.put("room", tempRoom);
}
} else if (objectType.equals("item")) {
for (ZorkRoom tempRoom : (Iterable<ZorkRoom>) game.values("room")) {
if (tempRoom.item.contains(object)) {
tempRoom.item.remove(object);
game.put("room", tempRoom);
}
}
for (ZorkContainer tempContainer : (Iterable<ZorkContainer>) game.values("container")) {
if (tempContainer.item.contains(object)) {
tempContainer.item.remove(object);
game.put("container", tempContainer);
}
}
} else if (objectType.equals("container")) {
for (ZorkRoom tempRoom : (Iterable<ZorkRoom>) game.values("room")) {
if (tempRoom.container.contains(object)) {
tempRoom.container.remove(object);
game.put("room", tempRoom);
}
}
} else if (objectType.equals("creature")) {
for (ZorkRoom tempRoom : (Iterable<ZorkRoom>) game.values("room")) {
if (tempRoom.creature.contains(object)) {
tempRoom.creature.remove(object);
game.put("room", tempRoom);
}
}
}
}
private void doActionUpdate(String object, String newStatus) {
ZorkMap<ZorkObject> collection = (ZorkMap<ZorkObject>) game.getListThroughLookup(object);
ZorkObject tempObject = collection.get(object);
tempObject.updateStatus(newStatus);
collection.put(tempObject);
}
private void doActionAttack(String tempString, String weapon) {
if (game.getCurrentRoom().creature.contains(tempString)) {
ZorkCreature tempCreature = (ZorkCreature) game.get("creature", tempString);
if (tempCreature != null && game.inventory.contains(weapon)) {
if (tempCreature.attack(this, weapon)) {
System.out.println("You assault the " + tempString + " with the " + weapon + ".");
for (String print: tempCreature.print) {
System.out.println(print);
}
for (String action: tempCreature.action) {
executeAction(action);
}
return;
}
}
}
System.out.println("Error");
}
private void doActionTurnOn(String tempString) {
if (game.inventory.contains(tempString)) {
ZorkItem tempItem = (ZorkItem) game.get("item", tempString);
System.out.println("You activate the " + tempString + ".");
if (tempItem != null) {
for (String print: tempItem.turnOnPrint) {
System.out.println(print);
}
for (String action: tempItem.turnOnAction) {
executeAction(action);
}
return;
}
}
System.out.println("Error");
}
private void doActionPutItem(String tempString, String destination) {
if (game.getCurrentRoom().container.contains(destination)){
ZorkContainer tempContainer = (ZorkContainer) game.get("container", destination);
if(tempContainer.isOpen() && game.inventory.contains(tempString)) {
tempContainer.item.add(tempString);
game.inventory.remove(tempString);
System.out.println("Item " + tempString + " added to " + destination + ".");
return;
}
}
System.out.println("Error");
}
private void doActionDropItem(String tempString) {
if (game.inventory.contains(tempString)) {
ZorkRoom tempRoom = game.getCurrentRoom();
tempRoom.item.add(tempString);
game.put("room", tempRoom);
game.inventory.remove(tempString);
System.out.println(tempString + " dropped.");
} else {
System.out.println("Error");
}
}
private void doActionReadObject(String tempString) {
if (game.inventory.contains(tempString)) {
ZorkItem tempItem = (ZorkItem) game.get("item", tempString);
if (tempItem.writing != null && !tempItem.writing.isEmpty()) {
System.out.println(tempItem.writing);
} else {
System.out.println("Nothing written.");
}
} else {
System.out.println("Error");
}
}
private void doActionOpenContainer(String tempString) {
ZorkContainer tempContainer;
if (game.getCurrentRoom().container.contains(tempString)) {
tempContainer = (ZorkContainer) game.get("container", tempString);
tempContainer.open();
if (tempContainer.item.isEmpty()) {
System.out.println(tempString + " is empty");
} else {
String output = "";
System.out.print(tempString + " contains ");
for (String key : tempContainer.item) {
output += key + ", ";
}
output = output.substring(0, output.length() - 2);
System.out.println(output + ".");
}
} else {
System.out.println("Error");
}
}
private void doActionOpenExit() {
if (game.getCurrentRoom().type.equals("exit")) {
System.out.println("Game Over");
game.setGameOver();
} else {
System.out.println("Error");
}
}
/*Basic movement function */
private void doActionMove(String direction) {
final Map<String, String> fullDirections = Map.ofEntries(
entry("n", "north"),
entry("s", "south"),
entry("e", "east"),
entry("w", "west")
);
if (game.changeRoom(game.getCurrentRoom().border.get(fullDirections.get(direction)))) {
System.out.println(game.getCurrentRoom().description);
} else {
System.out.println("Can't go that way.");
}
}
/* Print out the inventory when user types i */
private void doActionInventory() {
String output = "Inventory: ";
if (game.inventory.isEmpty()) {
System.out.println("Inventory: empty");
} else {
for (String key : game.inventory) {
output += key + ", ";
}
output = output.substring(0, output.length() - 2);
System.out.println(output);
}
}
private void doActionTake(String tempString) {
if ((game.getCurrentRoom()).item.contains(tempString)) {
game.inventory.add(tempString);
ZorkRoom tempRoom = (game.getCurrentRoom());
tempRoom.item.remove(tempString);
game.put("room", tempRoom);
System.out.println("Item " + tempString + " added to inventory.");
} else {
/*Search all containers in the current room for the item!*/
for (String key : game.getCurrentRoom().container) {
ZorkContainer tempContainer = (ZorkContainer) game.get("container", key);
if (tempContainer != null && tempContainer.isOpen() && tempContainer.item.contains(tempString)) {
game.inventory.add(tempString);
tempContainer.item.remove(tempString);
game.put("container", tempContainer);
System.out.println("Item " + tempString + " added to inventory.");
return;
}
}
System.out.println("Error");
}
}
/* Check triggers */ /* Check triggers */
public boolean executeTriggers() { public boolean executeTriggers() {
/*Variable initialization*/ /*Variable initialization*/
boolean skip = false; boolean skip;
/*Check Room triggers*/ /*Check Room triggers*/
skip = skip || doTriggersRoom(); skip = doTriggersRoom();
/* Check items in the containers in the room */ /* Check items in the containers in the room */
skip = skip || doTriggersItemsInContainersInRoom(); skip = skip || doTriggersItemsInContainersInRoom();
/* Check all containers in the room*/ /* Check all containers in the room*/
@ -437,11 +135,12 @@ public class Zork {
for (int x = zorkObject.trigger.size() - 1; x >= 0; x--) { for (int x = zorkObject.trigger.size() - 1; x >= 0; x--) {
ZorkTrigger tempTrigger = zorkObject.trigger.get(x); ZorkTrigger tempTrigger = zorkObject.trigger.get(x);
if (tempTrigger.evaluate(this)) { if (tempTrigger.evaluate(this)) {
for (String print: tempTrigger.print) { for (String print : tempTrigger.print) {
System.out.println(print); System.out.println(print);
} }
for (String action: tempTrigger.action) { final ActionDispatcher d = new ActionDispatcher(game);
executeAction(action); for (String action : tempTrigger.action) {
d.dispatch(action);
} }
skip = skip || tempTrigger.hasCommand; skip = skip || tempTrigger.hasCommand;
if (tempTrigger.type.equals("single")) { if (tempTrigger.type.equals("single")) {

9
src/main/java/com/github/dtschust/zork/ZorkCondition.java
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@ -1,5 +1,7 @@
package com.github.dtschust.zork; package com.github.dtschust.zork;
import com.github.dtschust.zork.parser.ZorkGame;
/* Generic condition*/ /* Generic condition*/
public abstract class ZorkCondition implements ZorkEvaluatable { public abstract class ZorkCondition implements ZorkEvaluatable {
public final String object; public final String object;
@ -7,4 +9,11 @@ public abstract class ZorkCondition implements ZorkEvaluatable {
protected ZorkCondition(String object) { protected ZorkCondition(String object) {
this.object = object; this.object = object;
} }
public abstract boolean evaluate(ZorkGame game);
@Override
public boolean evaluate(Zork zork) {
return this.evaluate(zork.game);
}
} }

15
src/main/java/com/github/dtschust/zork/ZorkConditionHas.java
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@ -1,5 +1,6 @@
package com.github.dtschust.zork; package com.github.dtschust.zork;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.types.ZorkContainer; import com.github.dtschust.zork.types.ZorkContainer;
import com.github.dtschust.zork.types.ZorkRoom; import com.github.dtschust.zork.types.ZorkRoom;
@ -16,19 +17,19 @@ public class ZorkConditionHas extends ZorkCondition {
} }
@Override @Override
public boolean evaluate(Zork zork) { public boolean evaluate(ZorkGame game) {
/*Inventory is a special case as it isn't the name of any object in the game, check for it specifically*/ /*Inventory is a special case as it isn't the name of any object in the game, check for it specifically*/
if (owner.equals("inventory")) { if (owner.equals("inventory")) {
return evaluateCondition(zork.game.inventory.contains(object)); return evaluateCondition(game.inventory.contains(object));
} else { } else {
/* is it a room?*/ /* is it a room?*/
ZorkRoom roomObject = (ZorkRoom) zork.game.get("room", owner); ZorkRoom roomObject = (ZorkRoom) game.get("room", owner);
if (roomObject != null) { if (roomObject != null) {
return evaluateCondition(roomObject.item.contains(object)); return evaluateCondition(roomObject.item.contains(object));
} }
/* is it a container?*/ /* is it a container?*/
else { else {
ZorkContainer containerObject = (ZorkContainer) zork.game.get("container", owner); ZorkContainer containerObject = (ZorkContainer) game.get("container", owner);
if (containerObject != null) { if (containerObject != null) {
return evaluateCondition(containerObject.item.contains(object)); return evaluateCondition(containerObject.item.contains(object));
} }
@ -38,9 +39,9 @@ public class ZorkConditionHas extends ZorkCondition {
return false; return false;
} }
private boolean evaluateCondition(boolean contained){ private boolean evaluateCondition(boolean contained) {
if(has.equals("yes")) return contained; if (has.equals("yes")) return contained;
else if(has.equals("no")) return !contained; else if (has.equals("no")) return !contained;
return false; return false;
} }
} }

5
src/main/java/com/github/dtschust/zork/ZorkConditionStatus.java
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@ -1,5 +1,6 @@
package com.github.dtschust.zork; package com.github.dtschust.zork;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.types.ZorkObject; import com.github.dtschust.zork.types.ZorkObject;
/* Status conditions*/ /* Status conditions*/
@ -12,8 +13,8 @@ public class ZorkConditionStatus extends ZorkCondition {
} }
@Override @Override
public boolean evaluate(Zork zork) { public boolean evaluate(ZorkGame game) {
ZorkObject tested = zork.game.getListThroughLookup(object).get(object); ZorkObject tested = game.getListThroughLookup(object).get(object);
return tested != null && tested.isStatusEqualTo(status); return tested != null && tested.isStatusEqualTo(status);
} }
} }

2
src/main/java/com/github/dtschust/zork/ZorkEvaluatable.java
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@ -1,5 +1,7 @@
package com.github.dtschust.zork; package com.github.dtschust.zork;
import com.github.dtschust.zork.parser.ZorkGame;
public interface ZorkEvaluatable { public interface ZorkEvaluatable {
boolean evaluate(Zork zork); boolean evaluate(Zork zork);
} }

28
src/main/java/com/github/dtschust/zork/parser/ZorkGame.java
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@ -17,11 +17,12 @@ public class ZorkGame {
public final Set<String> inventory = new HashSet<>(); public final Set<String> inventory = new HashSet<>();
protected HashMap<String, String> objectLookup = new HashMap<>(); protected HashMap<String, String> objectLookup = new HashMap<>();
public ZorkRoom getCurrentRoom(){ public ZorkRoom getCurrentRoom() {
return rooms.get(currentRoom); return rooms.get(currentRoom);
} }
public boolean changeRoom(String newRoom){
if(rooms.containsKey(newRoom)) { public boolean changeRoom(String newRoom) {
if (rooms.containsKey(newRoom)) {
currentRoom = newRoom; currentRoom = newRoom;
running = true; running = true;
return true; return true;
@ -29,39 +30,40 @@ public class ZorkGame {
return false; return false;
} }
public boolean isRunning(){ public boolean isRunning() {
return running; return running;
} }
public void setGameOver(){ public void setGameOver() {
running = false; running = false;
} }
public String getTypeFromLookup(String object){ public String getTypeFromLookup(String object) {
return objectLookup.get(object); return objectLookup.get(object);
} }
public void addObjectThroughLookup(String name, ZorkObject object){ public void addObjectThroughLookup(String name, ZorkObject object) {
putInMapGivenType(name, object); putInMapGivenType(name, object);
objectLookup.put(object.name, name); objectLookup.put(object.name, name);
} }
public ZorkMap<? extends ZorkObject> getListThroughLookup(String name){
public ZorkMap<? extends ZorkObject> getListThroughLookup(String name) {
return getMapFromType(objectLookup.get(name)); return getMapFromType(objectLookup.get(name));
} }
public ZorkObject get(String type, String key){ public ZorkObject get(String type, String key) {
return getMapFromType(type).get(key); return getMapFromType(type).get(key);
} }
public void put(String type, ZorkObject object){ public void put(String type, ZorkObject object) {
putInMapGivenType(type, object); putInMapGivenType(type, object);
} }
public Iterable<? extends ZorkObject> values(String type){ public Iterable<? extends ZorkObject> values(String type) {
return getMapFromType(type).values(); return getMapFromType(type).values();
} }
private ZorkMap<? extends ZorkObject> getMapFromType(String type){ private ZorkMap<? extends ZorkObject> getMapFromType(String type) {
switch (type) { switch (type) {
case "room": case "room":
return rooms; return rooms;
@ -76,7 +78,7 @@ public class ZorkGame {
} }
} }
private void putInMapGivenType(String type, ZorkObject object){ private void putInMapGivenType(String type, ZorkObject object) {
switch (type) { switch (type) {
case "room": case "room":
rooms.put((ZorkRoom) object); rooms.put((ZorkRoom) object);

15
src/main/java/com/github/dtschust/zork/repl/Action.java Normal file
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@ -0,0 +1,15 @@
package com.github.dtschust.zork.repl;
import com.github.dtschust.zork.parser.ZorkGame;
import java.util.List;
public abstract class Action {
public abstract boolean matchesInput(final List<String> arguments);
public int getMinimumArgCount() {
return 1;
}
public int getMaximumArgCount() { return Integer.MAX_VALUE; }
public abstract void run(final ZorkGame game, final List<String> arguments);
}

54
src/main/java/com/github/dtschust/zork/repl/ActionDispatcher.java Normal file
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@ -0,0 +1,54 @@
package com.github.dtschust.zork.repl;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.actions.*;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
public class ActionDispatcher {
private static final List<Action> actionList = List.of(
new AddAction(),
new AttackAction(),
new DeleteAction(),
new DropItemAction(),
new GameOverAction(),
new InventoryAction(),
new MoveAction(),
new OpenAction(),
new PutAction(),
new ReadAction(),
new TakeAction(),
new TurnOnAction(),
new UpdateAction()
);
private final ZorkGame game;
public ActionDispatcher(ZorkGame game) {
this.game = game;
}
private Optional<Action> findAction(final List<String> arguments) {
if (arguments.isEmpty()) return Optional.empty();
final int size = arguments.size();
return actionList.stream().filter(
u -> size >= u.getMinimumArgCount() &&
size <= u.getMaximumArgCount() &&
u.matchesInput(arguments)
).findAny();
}
public void dispatch(String input) {
final List<String> arguments = Arrays.asList(input.split(" "));
final Optional<Action> action = findAction(arguments);
if (action.isEmpty()) {
System.out.println("Error");
} else {
action.get().run(game, arguments);
}
}
}

59
src/main/java/com/github/dtschust/zork/repl/actions/AddAction.java Normal file
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@ -0,0 +1,59 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import com.github.dtschust.zork.types.ZorkContainer;
import com.github.dtschust.zork.types.ZorkRoom;
import java.util.List;
/**
* Add: figure out what type the destination is, then what type the object is. Then add object to destination if it makes sense
*/
public class AddAction extends Action {
@Override
public boolean matchesInput(List<String> arguments) {
return arguments.get(0).equals("Add");
}
@Override
public int getMinimumArgCount() {
return 4;
}
@Override
public void run(ZorkGame game, List<String> arguments) {
final String object = arguments.get(1);
final String destination = arguments.get(3);
final String objectType = game.getTypeFromLookup(object);
final String destinationType = game.getTypeFromLookup(destination);
if (destinationType.equals("room")) {
ZorkRoom tempRoom = (ZorkRoom) game.get("room", destination);
switch (objectType) {
case "item":
tempRoom.item.add(object);
break;
case "creature":
tempRoom.creature.add(object);
break;
case "container":
tempRoom.container.add(object);
break;
default:
System.out.println("Error");
break;
}
game.put("room", tempRoom);
} else if (destinationType.equals("container")) {
final ZorkContainer tempContainer = (ZorkContainer) game.get("container", destination);
if (objectType.equals("item"))
tempContainer.item.add(object);
else
System.out.println("Error");
game.put("container", tempContainer);
} else {
System.out.println("Error");
}
}
}

48
src/main/java/com/github/dtschust/zork/repl/actions/AttackAction.java Normal file
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@ -0,0 +1,48 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import com.github.dtschust.zork.repl.ActionDispatcher;
import com.github.dtschust.zork.types.ZorkCreature;
import java.util.List;
/**
* Attempt an attack, do you feel lucky?
*/
public class AttackAction extends Action {
@Override
public boolean matchesInput(List<String> arguments) {
return arguments.get(0).equals("attack");
}
@Override
public int getMinimumArgCount() {
return 4;
}
@Override
public void run(ZorkGame game, List<String> arguments) {
final String tempString = arguments.get(1);
final String weapon = arguments.get(3);
if (game.getCurrentRoom().creature.contains(tempString)) {
ZorkCreature tempCreature = (ZorkCreature) game.get("creature", tempString);
if (tempCreature != null && game.inventory.contains(weapon)) {
if (tempCreature.attack(game, weapon)) {
System.out.println("You assault the " + tempString + " with the " + weapon + ".");
for (String print : tempCreature.print) {
System.out.println(print);
}
final ActionDispatcher effectsDispatcher = new ActionDispatcher(game);
for (final String action : tempCreature.action) {
effectsDispatcher.dispatch(action);
}
return;
}
}
}
System.out.println("Error");
}
}

72
src/main/java/com/github/dtschust/zork/repl/actions/DeleteAction.java Normal file
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@ -0,0 +1,72 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import com.github.dtschust.zork.types.ZorkContainer;
import com.github.dtschust.zork.types.ZorkRoom;
import java.util.List;
/**
* Delete: figure out what object it is and delete it accordingly. Rooms are especially tricky
*/
public class DeleteAction extends Action {
@Override
public boolean matchesInput(List<String> arguments) {
return arguments.get(0).equals("Delete");
}
@Override
public int getMinimumArgCount() {
return 2;
}
@Override
public void run(ZorkGame game, List<String> arguments) {
final String object = arguments.get(1);
String objectType = game.getTypeFromLookup(object);
switch (objectType) {
case "room":
for (ZorkRoom tempRoom : (Iterable<ZorkRoom>) game.values("room")) {
for (String key : tempRoom.border.keySet()) {
if (tempRoom.border.get(key).equals(object)) {
tempRoom.border.remove(key);
}
}
game.put("room", tempRoom);
}
break;
case "item":
for (ZorkRoom tempRoom : (Iterable<ZorkRoom>) game.values("room")) {
if (tempRoom.item.contains(object)) {
tempRoom.item.remove(object);
game.put("room", tempRoom);
}
}
for (ZorkContainer tempContainer : (Iterable<ZorkContainer>) game.values("container")) {
if (tempContainer.item.contains(object)) {
tempContainer.item.remove(object);
game.put("container", tempContainer);
}
}
break;
case "container":
for (ZorkRoom tempRoom : (Iterable<ZorkRoom>) game.values("room")) {
if (tempRoom.container.contains(object)) {
tempRoom.container.remove(object);
game.put("room", tempRoom);
}
}
break;
case "creature":
for (ZorkRoom tempRoom : (Iterable<ZorkRoom>) game.values("room")) {
if (tempRoom.creature.contains(object)) {
tempRoom.creature.remove(object);
game.put("room", tempRoom);
}
}
break;
}
}
}

34
src/main/java/com/github/dtschust/zork/repl/actions/DropItemAction.java Normal file
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@ -0,0 +1,34 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import com.github.dtschust.zork.types.ZorkRoom;
import java.util.List;
public class DropItemAction extends Action {
@Override
public boolean matchesInput(List<String> arguments) {
return arguments.get(0).equals("drop");
}
@Override
public int getMinimumArgCount() {
return 2;
}
@Override
public void run(ZorkGame game, List<String> arguments) {
final String what = arguments.get(1);
if (game.inventory.contains(what)) {
ZorkRoom tempRoom = game.getCurrentRoom();
tempRoom.item.add(what);
game.put("room", tempRoom);
game.inventory.remove(what);
System.out.println(what + " dropped.");
} else {
System.out.println("Error");
}
}
}

27
src/main/java/com/github/dtschust/zork/repl/actions/GameOverAction.java Normal file
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@ -0,0 +1,27 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import java.util.List;
/**
* The "Game Over" action marks the end of the game.
*/
public class GameOverAction extends Action {
@Override
public boolean matchesInput(List<String> arguments) {
return arguments.get(0).equals("Game") && arguments.get(1).equals("Over");
}
@Override
public int getMinimumArgCount() {
return 2;
}
@Override
public void run(ZorkGame game, List<String> arguments) {
System.out.println("Victory!");
game.setGameOver();
}
}

23
src/main/java/com/github/dtschust/zork/repl/actions/InventoryAction.java Normal file
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@ -0,0 +1,23 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import java.util.List;
public class InventoryAction extends Action {
@Override
public boolean matchesInput(List<String> arguments) {
return arguments.get(0).equals("i");
}
@Override
public void run(ZorkGame game, List<String> arguments) {
if (game.inventory.isEmpty()) {
System.out.println("Inventory: empty");
} else {
final String output = "Inventory: " + String.join(", ", game.inventory);
System.out.println(output);
}
}
}

43
src/main/java/com/github/dtschust/zork/repl/actions/MoveAction.java Normal file
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@ -0,0 +1,43 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import java.util.List;
import java.util.Map;
import static java.util.Map.entry;
/**
* If it's not a "Special Action", just treat it normally
* Execute a user action or an action command from some <action> element that is not one of the "Special Commands"
* Movement
*/
public class MoveAction extends Action {
private static final Map<String, String> fullDirections = Map.ofEntries(
entry("n", "north"),
entry("s", "south"),
entry("e", "east"),
entry("w", "west")
);
@Override
public boolean matchesInput(List<String> arguments) {
return fullDirections.containsKey(arguments.get(0));
}
@Override
public int getMaximumArgCount() {
return 1;
}
@Override
public void run(ZorkGame game, List<String> arguments) {
final String direction = arguments.get(0);
if (game.changeRoom(game.getCurrentRoom().border.get(fullDirections.get(direction)))) {
System.out.println(game.getCurrentRoom().description);
} else {
System.out.println("Can't go that way.");
}
}
}

42
src/main/java/com/github/dtschust/zork/repl/actions/OpenAction.java Normal file
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@ -0,0 +1,42 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import com.github.dtschust.zork.types.ZorkContainer;
import java.util.List;
public class OpenAction extends Action {
@Override
public boolean matchesInput(List<String> arguments) {
return arguments.get(0).equals("open");
}
@Override
public void run(ZorkGame game, List<String> arguments) {
final String what = arguments.get(1);
if (what.equals("exit")) {
if (game.getCurrentRoom().type.equals("exit")) {
System.out.println("Game Over");
game.setGameOver();
} else {
System.out.println("Error");
}
} else {
ZorkContainer tempContainer;
if (game.getCurrentRoom().container.contains(what)) {
tempContainer = (ZorkContainer) game.get("container", what);
tempContainer.open();
if (tempContainer.item.isEmpty()) {
System.out.println(what + " is empty");
} else {
final String output = String.join(", ", tempContainer.item);
System.out.println(what + " contains " + output + ".");
}
} else {
System.out.println("Error");
}
}
}
}

36
src/main/java/com/github/dtschust/zork/repl/actions/PutAction.java Normal file
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@ -0,0 +1,36 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import com.github.dtschust.zork.types.ZorkContainer;
import java.util.List;
public class PutAction extends Action {
@Override
public boolean matchesInput(List<String> arguments) {
return arguments.get(0).equals("put");
}
@Override
public int getMinimumArgCount() {
return 4;
}
@Override
public void run(ZorkGame game, List<String> arguments) {
final String what = arguments.get(1);
final String destination = arguments.get(3);
if (game.getCurrentRoom().container.contains(destination)) {
ZorkContainer tempContainer = (ZorkContainer) game.get("container", destination);
if (tempContainer.isOpen() && game.inventory.contains(what)) {
tempContainer.item.add(what);
game.inventory.remove(what);
System.out.println("Item " + what + " added to " + destination + ".");
return;
}
}
System.out.println("Error");
}
}

35
src/main/java/com/github/dtschust/zork/repl/actions/ReadAction.java Normal file
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@ -0,0 +1,35 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import com.github.dtschust.zork.types.ZorkItem;
import java.util.List;
public class ReadAction extends Action {
@Override
public boolean matchesInput(List<String> arguments) {
return arguments.get(0).equals("read");
}
@Override
public int getMinimumArgCount() {
return 2;
}
@Override
public void run(ZorkGame game, List<String> arguments) {
final String what = arguments.get(1);
if (game.inventory.contains(what)) {
ZorkItem tempItem = (ZorkItem) game.get("item", what);
if (tempItem.writing != null && !tempItem.writing.isEmpty()) {
System.out.println(tempItem.writing);
} else {
System.out.println("Nothing written.");
}
} else {
System.out.println("Error");
}
}
}

46
src/main/java/com/github/dtschust/zork/repl/actions/TakeAction.java Normal file
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@ -0,0 +1,46 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import com.github.dtschust.zork.types.ZorkContainer;
import com.github.dtschust.zork.types.ZorkRoom;
import java.util.List;
public class TakeAction extends Action {
@Override
public boolean matchesInput(List<String> arguments) {
return arguments.get(0).equals("take");
}
@Override
public int getMinimumArgCount() {
return 2;
}
@Override
public void run(ZorkGame game, List<String> arguments) {
final String tempString = arguments.get(1);
if ((game.getCurrentRoom()).item.contains(tempString)) {
game.inventory.add(tempString);
ZorkRoom tempRoom = (game.getCurrentRoom());
tempRoom.item.remove(tempString);
game.put("room", tempRoom);
System.out.println("Item " + tempString + " added to inventory.");
} else {
/* Search all containers in the current room for the item! */
for (String key : game.getCurrentRoom().container) {
ZorkContainer tempContainer = (ZorkContainer) game.get("container", key);
if (tempContainer != null && tempContainer.isOpen() && tempContainer.item.contains(tempString)) {
game.inventory.add(tempString);
tempContainer.item.remove(tempString);
game.put("container", tempContainer);
System.out.println("Item " + tempString + " added to inventory.");
return;
}
}
System.out.println("Error");
}
}
}

44
src/main/java/com/github/dtschust/zork/repl/actions/TurnOnAction.java Normal file
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@ -0,0 +1,44 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import com.github.dtschust.zork.repl.ActionDispatcher;
import com.github.dtschust.zork.types.ZorkItem;
import java.util.List;
/**
* Turn on an item
*/
public class TurnOnAction extends Action {
@Override
public boolean matchesInput(List<String> arguments) {
return arguments.get(0).equals("turn") && arguments.get(1).equals("on");
}
@Override
public int getMinimumArgCount() {
return 3;
}
@Override
public void run(ZorkGame game, List<String> arguments) {
final String what = arguments.get(2);
if (game.inventory.contains(what)) {
ZorkItem tempItem = (ZorkItem) game.get("item", what);
System.out.println("You activate the " + what + ".");
if (tempItem != null) {
for (String print : tempItem.turnOnPrint) {
System.out.println(print);
}
final ActionDispatcher effectsDispatcher = new ActionDispatcher(game);
for (final String action : tempItem.turnOnAction) {
effectsDispatcher.dispatch(action);
}
return;
}
}
System.out.println("Error");
}
}

34
src/main/java/com/github/dtschust/zork/repl/actions/UpdateAction.java Normal file
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@ -0,0 +1,34 @@
package com.github.dtschust.zork.repl.actions;
import com.github.dtschust.zork.parser.ZorkGame;
import com.github.dtschust.zork.repl.Action;
import com.github.dtschust.zork.types.ZorkMap;
import com.github.dtschust.zork.types.ZorkObject;
import java.util.List;
/**
* The "Update" command figures out what type of item it is, and then change its status
*/
public class UpdateAction extends Action {
@Override
public boolean matchesInput(List<String> arguments) {
return arguments.get(0).equals("Update");
}
@Override
public int getMinimumArgCount() {
return 1;
}
@Override
public void run(ZorkGame game, List<String> arguments) {
final String object = arguments.get(1);
final String newStatus = arguments.get(3);
ZorkMap<ZorkObject> collection = (ZorkMap<ZorkObject>) game.getListThroughLookup(object);
ZorkObject tempObject = collection.get(object);
tempObject.updateStatus(newStatus);
collection.put(tempObject);
}
}

5
src/main/java/com/github/dtschust/zork/types/ZorkCreature.java
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@ -2,6 +2,7 @@ package com.github.dtschust.zork.types;
import com.github.dtschust.zork.Zork; import com.github.dtschust.zork.Zork;
import com.github.dtschust.zork.ZorkCondition; import com.github.dtschust.zork.ZorkCondition;
import com.github.dtschust.zork.parser.ZorkGame;
import java.util.ArrayList; import java.util.ArrayList;
import java.util.HashSet; import java.util.HashSet;
@ -21,12 +22,12 @@ public class ZorkCreature extends ZorkObject {
/* Evaluate the success of an attack*/ /* Evaluate the success of an attack*/
public boolean attack(Zork zork, String weapon) { public boolean attack(ZorkGame game, String weapon) {
if (!vulnerability.contains(weapon)) { if (!vulnerability.contains(weapon)) {
return false; return false;
} }
for (ZorkCondition condition : conditions) { for (ZorkCondition condition : conditions) {
if (!condition.evaluate(zork)) { if (!condition.evaluate(game)) {
return false; return false;
} }
} }