Get Programming with JavaScript

Get Programming with JavaScript - Listing 5.14

Listing 5.14 - Displaying a player's information using properties

var showPlayerName = function (playerName) {
    console.log(playerName);
};

var showPlayerHealth = function (playerName, playerHealth) {
    console.log(playerName + " has health " + playerHealth);
};

var showPlayerPlace = function (playerName, playerPlace) {
    console.log(playerName + " is in " + playerPlace);
};

var showPlayerInfo = function (playerName, playerPlace, playerHealth) {
    console.log("");

    showPlayerName(playerName);

    console.log("----------------------------");

    showPlayerPlace(playerName, playerPlace);
    showPlayerHealth(playerName, playerHealth);

    console.log("----------------------------");
    console.log("");
};

var player1 = {
    name: "Kandra",
    place: "The Dungeon of Doom",
    health: 50
};

var player2 = {
    name: "Dax",
    place: "The Old Library",
    health: 40
};

showPlayerInfo(player1.name, player1.place, player1.health);
showPlayerInfo(player2.name, player2.place, player2.health);

Further Adventures

Listing 5.14 - Displaying a player's information using properties - Task 1

Define a showLine function with a parameter for the length of line.

var showLine = function (length) {
    var line = "----------------------------------------";    // I've used 40 dashes
    console.log(line.substring(0, length));
};

var showPlayerName = function (playerName) {
    console.log(playerName);
};

var showPlayerHealth = function (playerName, playerHealth) {
    console.log(playerName + " has health " + playerHealth);
};

var showPlayerPlace = function (playerName, playerPlace) {
    console.log(playerName + " is in " + playerPlace);
};

var showPlayerInfo = function (playerName, playerPlace, playerHealth) {
    console.log("");

    showPlayerName(playerName);

    console.log("----------------------------");

    showPlayerPlace(playerName, playerPlace);
    showPlayerHealth(playerName, playerHealth);

    console.log("----------------------------");
    console.log("");
};

var player1 = {
    name: "Kandra",
    place: "The Dungeon of Doom",
    health: 50
};

var player2 = {
    name: "Dax",
    place: "The Old Library",
    health: 40
};

showPlayerInfo(player1.name, player1.place, player1.health);
showPlayerInfo(player2.name, player2.place, player2.health);

The showLine function above can cope with lines of length between 1 and 40.

Listing 5.14 - Displaying a player's information using properties - Task 2

Use your showLine function to display the player's name in a box.

var showLine = function (length) {
var line = "----------------------------------------";
    console.log(line.substring(0, length));
};

var showPlayerName = function (playerName) {
    showLine(playerName.length + 4);
    console.log("- " + playerName + " -");
    showLine(playerName.length + 4);
};

var showPlayerHealth = function (playerName, playerHealth) {
    console.log(playerName + " has health " + playerHealth);
};

var showPlayerPlace = function (playerName, playerPlace) {
    console.log(playerName + " is in " + playerPlace);
};

var showPlayerInfo = function (playerName, playerPlace, playerHealth) {
    console.log("");

    showPlayerName(playerName);

    console.log("----------------------------");

    showPlayerPlace(playerName, playerPlace);
    showPlayerHealth(playerName, playerHealth);

    console.log("----------------------------");
    console.log("");
};

var player1 = {
    name: "Kandra",
    place: "The Dungeon of Doom",
    health: 50
};

var player2 = {
    name: "Dax",
    place: "The Old Library",
    health: 40
};

showPlayerInfo(player1.name, player1.place, player1.health);
showPlayerInfo(player2.name, player2.place, player2.health);