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| =exploring the city - choose your own adventure=
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| ==textual adventure games==
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| * [https://en.wikipedia.org/wiki/Colossal_Cave_Adventure Colossal Cave Adventure] (1976,1977)
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| * [https://en.wikipedia.org/wiki/Zork Zork] - [http://textadventures.co.uk/games/play/5zyoqrsugeopel3ffhz_vq online emulation] (1977)
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| https://upload.wikimedia.org/wikipedia/en/a/ac/Zork_I_box_art.jpg
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|
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| ==adventure games' formula==
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| * take a popular fiction game. E.g. a detective novel/
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| * create:
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| ** a background story
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| ** a map for the players to move around it
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| ** objects to manipulate
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| ** characters to interact with
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| ** '''a plot tree with several outcomes'''
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| * add: descriptions, dialogues, error messages and a vocabulary for the players
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|
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| ''game development then becomes much like planning and writing a piece of short fiction, except multiple outcomes must be conceived''.
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|
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| Aarseth, Espen J. 1997 ''Cybertext''
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|
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| ==the city==
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| Can we create a web-based game, that can played within the physical space of the city, using mobile phones?
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|
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| The city game can become a way of exploring a space, a city, an excuse to drift (dérive), experience and perceive the city differently from our day-to-day understanding of it.
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|
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| == choose you own adventure in the city==
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| [[File:cyod.jpg]]
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|
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| A very simple example using JS and jQuery
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|
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| <source lang="html4strict">
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| <!DOCTYPE html>
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| <html>
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| <head>
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| <script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
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|
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| <title>Choose your own adventure</title>
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| <meta charset="utf-8" />
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| <style>
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| </style>
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| </head>
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| <body>
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| <p class="msg"></p>
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| <img class="image" />
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| <br/>
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| <div class="buttons">
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| <p class="question"></p>
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| <!-- buttons: will have to be created dynamically -->
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| </div>
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|
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| <script>
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| //object containing collection of scenes:
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| // each scene contains: title msg img (option), question, connect(ing scenes) },
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| var scenes={
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| scene_1: {title:"start", msg:"Look around you. Stop and choose where you want to go to.", img: "", question:"What do you want to do next?", connect:[2,5] },
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| scene_2: {title:"walk", msg:"Walk in a straight line until you encounter and obstacle", img: "", question:"How large is the object?", connect:[3,4] },
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| scene_3: {title:"small", msg:"Take the object with you. Walk back to to you started. Leave the object there and look around. Is this still the same place?", img: "", question:"Go to", connect:[1] },
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| scene_4: {title:"large", msg:"Leave a message in the obstacle for someone to see", img: "", question:"Go to", connect:[1] },
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| scene_5: {title:"follow" , msg:"Follow a moving object, until you feel bored.", img:"", question:"How is this object?", connect:[3,6,4] },
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| scene_6: {title:"too far" , msg:"Look at the object from where you are now. Move your head slowly towards the sky. Look at it carefully.", img: "", question:"Go to", connect:[1] },
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| }
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|
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|
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| function replace_scene(n){ // function to replace the scene content base on its number
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| var scene = scenes[n];
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|
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| $("p.msg").html( scene.msg );
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| $("img.image").attr( "src", scene.img );
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| $("p.question").html( scene.question );
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|
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| for (var i=0; i < scene.connect.length; i=i+1) { var numb='scene_'+scene.connect[i]; //create buttons
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| var next_title=scenes[numb].title;
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| button = document.createElement('button')
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| $(button).text(next_title);
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| $(button).attr('name', numb);
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| $('div.buttons').append(button);
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|
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| $("button").click( // when user makes choice (click any button)
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| function(){
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| $("button").remove();//remove all buttons
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| var next_scene = $(this).attr('name'); //get next scene through the button name attribute
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| replace_scene(next_scene); //move to another scene
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| })
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| }
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|
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| }
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|
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|
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| $(document).ready(
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| function(){
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| replace_scene('scene_1'); // start in scene 1
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|
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| })
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|
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| </script>
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| </body>
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| </html>
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| </source>
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|
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| ===discussion===
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| How is this game constructed?
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| * '''scenes'''; Each scene contains:
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| ** number. E.g. <code>scene_2</code>
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| ** title
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| ** msg
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| ** img (option),
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| ** question
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| ** connect(ing scenes)
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|
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| * html template (empty tags) that are replace as the game progresses
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|
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|
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| What can be changed in this game?
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|
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| -----
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|
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| =Examples - using Javascript and jQuery=
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|
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| ==user text input==
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| We can receive text user input from the user, using HTML forms and jQuery [https://api.jquery.com/submit/ .submit() listener]
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|
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|
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| <source lang="html4strict">
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| <!DOCTYPE html>
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| <html><head>
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| <meta http-equiv="content-type" content="text/html" charset="utf-8">
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| <script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
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| <style>
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|
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| form{width: 50%;}
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| input{padding: 6px; width:50%; border: 2px solid #ccc; margin-top: 1em; color: #000;}
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| input:focus{border: 2px solid yellow; background-color: rgba(0, 0, 0, 0.75); color: white; font-weight: bold;}
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| input[type="submit"]{font-weight: bold; width: auto; }
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| input[type="submit"]:focus{ color: yellow; background-color: rgba(0, 0, 0, 0.75);}
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| #instruction{display: none; }
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| </style>
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| </head>
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| <body>
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| <h1 id="question">Tell me you name...</h1>
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| <form id="greeting">
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| <input name="firstName" id="firstName" required="" placeholder="Your first name" type="text"><br>
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| <input value="Send" type="submit">
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| </form>
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| <h2 id="instruction">Now <span class="userName"></span>, I want you to walk 10 steps away from where you are now.</h2>
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|
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|
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| <script>
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| var firstName; // variable that will store user name
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| $("form#greeting").submit(function(event){
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| console.log( $('#firstName').val() );
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| firstName = $('#firstName').val();
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|
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| event.preventDefault();
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| $("#firstName").val(''); //clean input#firstName
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| $('form, #question').css('display', 'none'); //hide form
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| $('#instruction').css('display', 'block'); //show instruction
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| $('span.userName').text(firstName); //Add name to span.userName
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|
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| })
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|
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| </script>
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| </body></html>
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|
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| </source>
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|
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| What can we do by getting the user's text input?
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| * address him/her by name.
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| * ask him/her other questions. E.g. where are you?
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| * store his/her answers
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| *
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|
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| <source lang="html4strict">
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| </source>
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|
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|
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| <source lang="html4strict">
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| </source>
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