//
// Simple dungeon game
//
var character = {'inventory': [], 'location': 'west room'};
var dungeon = {
'west room': {
'short_description': 'west room',
'long_description': 'the west end of a sloping east-west passage of barren rock',
'contents': ['pail of water', 'dragon tooth'],
'exits': {'east': 'centre room'}
},
'east room': {
'short_description': 'east room',
'long_description': 'a room of finished stone with high arched ceiling and soaring columns',
'contents': [],
'exits': {'west': 'centre room'}
},
'centre room': {
'short_description': 'centre room',
'long_description': 'the very heart of the dungeon, a windowless chamber lit only by the eerie light of glowing fungi high above',
'contents': ['golden key', 'spiral hourglass'],
'exits': {'east': 'east room', 'west': 'west room'}
}
};
function command_split(str){
var parts = str.split(/\s+/); // splits string into an array of words, taking out all whitespace
var command = parts.shift(); // command is the first word in the array, which is removed from the array
var object = parts.join(' '); // the rest of the words joined together. If there are no other words, this will be an empty string
return [command, object];
}
var room, command, verb, obj;
function remove(array, item){
var idx = array.indexOf(item);
if (idx > -1){
array.splice(idx,1);
}
}
function tryToMove(room, direction){
if(room.exits[direction]){
character.location = room.exits[direction];
room = dungeon[character.location];
describe(room);
}else{
print('You cannot go that way');
}
}
function printInventory(){
print('You are carrying:');
character['inventory'].forEach(function(item){
print(' ', item);
});
}
function describe(room){
if(!room.visited){
print ('you are in ' + room.long_description);
}else{
room.visited = true;
print (room.short_description);
}
var exits = Object.keys(room.exits);
if (exits.length > 1){
var last_exit = exits.pop();
print('there are exits to the ' + exits.join(', ') + ' and ' + last_exit);
}else{
print('there is an exit to the ' + exits[0]);
}
room['contents'].forEach(function(item){
print('There is a ' + item + ' here');
});
}
describe(dungeon[character.location]);
function getOneCommand(){
room = dungeon[character['location']];
command = command_split(prompt(room['short_description'] + ' > '));
verb = command[0];
obj = command[1];
console.log('verb: ' + verb + ', object: ' + obj);
if (['east', 'west', 'north', 'south', 'up', 'down', 'in', 'out '].indexOf(verb) > -1){
tryToMove(room, verb);
}else if (verb === 'inventory'){
printInventory();
}else if (verb === 'quit'){
print('Goodbye');
return;
}else if (verb === 'take'){
if (obj === 'all'){
if (room['contents']){
room.contents.slice().forEach(function(item){ // .slice() makes a copy of the list so removing items works
print('You pick up the ' + item);
character['inventory'].push(item);
remove(room['contents'], item);
});
}else{
print('There is nothing to take!');
}
}else{
room['contents'].slice().forEach(function(item){
if (item.indexOf(obj) > -1){ // does the word in obj match any part of the text of item?
print('You pick up the ' + item)
character['inventory'].push(item);
remove(room['contents'], item);
}
});
}
}
setTimeout(getOneCommand, 0);
}
getOneCommand();