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codecademydev/main.js Secret

Created Oct 3, 2020
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const prompt = require('prompt-sync')({sigint: true});
const hat = '^';
const hole = 'O';
const fieldCharacter = '░';
const pathCharacter = '*';
const player = 'H';
class Field {
constructor(field){
this._field = field;
this._gameOver = false;
this._playerX = 0;
this._playerY = 0;
}
get field(){
return this._field;
}
static generateField(height, width, percent = 25){
//Creates a new field by filling in the width as a row, then repeating until desired height is reached.
const newField = [];
//Create an empty field
for(let i = 0; i < height; i++){
const tempArr = [];
//Fill in row of field
for(let j = 0; j < width; j++){
tempArr.push(fieldCharacter);
}
//Add to final field
newField.push(tempArr);
}
//Add holes
//Calc number of holes needed by taking the percentage from the total area
const numHoles = Math.ceil((percent/100)*(height*width));
let i=0;
for(let i = 0; i < numHoles; i++){
let randX = this.pos(width);
let randY = this.pos(height);
while(newField[randX][randY] === hole){
randX = this.pos(width);
randY = this.pos(height);
}
newField[randX][randY] = hole;
randX = this.pos(width);
randY = this.pos(height);
}
let currentX = this.pos(width);
let currentY = this.pos(height);
newField[currentY][currentX] = hat;
return newField;
}
static pos(axis){
return Math.floor(Math.random() * axis);
}
playGame(){
this._field[this._playerY][this._playerX] = player;
this.print();
while(!this._gameOver){
const direction = prompt('Which direction do you want to go?');
this.move(direction);
this.print();
}
}
print(){
//uses map() to join the inner array elements, then join() to join the outer elements.
console.log(this._field.map(x=>{return x.join('');}).join('\n'));
}
move(direction){
this._field[this._playerY][this._playerX] = pathCharacter;
direction = direction.toLowerCase();
switch(direction){
case 'l':
this._playerX += 1;
break;
case 'r':
this._playerX -= 1;
break;
case 'u':
this._playerY -= 1;
break;
case 'd':
this._playerY += 1;
break;
default:
console.log('You\'ve entered an invalid direction.\nPlease enter l, r, u or d');
break;
}
if(this.outOfBounds()){
console.log('You went out of bounds!\nGAME OVER!');
this._gameOver = true;
}else{
//Array has to be accessed outside/y-coord first
const currentLoc = this._field[this._playerY][this._playerX];
if(currentLoc === 'O'){
//Fell in hole
console.log('You fell in a hole!\nGAME OVER!');
this._gameOver = true;
}else if(currentLoc === '^'){
//Found hat
this._field[this._playerY][this._playerX] = player;
console.log('You found your hat!\nGAME OVER!');
this._gameOver = true;
}else{
//Move
this._field[this._playerY][this._playerX] = player;
this._gameOver = false;
}
}
}
outOfBounds(){
if(this._playerX < 0 || this._playerX >= this._field[0].length || this._playerY < 0 || this._playerY >= this._field.length){
return true;
}else{
return false;
}
}
}
/*
const testField = new Field([
['*', '░', 'O'],
['░', 'O', '░'],
['░', '^', '░'],
]);
testField.playGame();
*/
const myField = new Field(Field.generateField(12, 12, 20));
myField.playGame();
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