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Start creating your first game--craftyjs

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Author: User
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Original link: http://craftyjs.com/getting-started/

Buildnewgames.com's author, Darren Torpey, has written a great introductory guide on how to start learning crafty.js.

http://buildnewgames.com/introduction-to-crafty/installing Crafty.js is easy, just put it in the <script> tab and run: 
<HTML>  <Head></Head>  <Body>    <DivID= "Game"></Div>    <Scripttype= "Text/javascript"src= "Https://rawgithub.com/craftyjs/Crafty/release/dist/crafty-min.js"></Script>    <Script>Crafty.init ( -, -, document.getElementById ('Game')); </Script>  </Body></HTML>

A crafty.js game is made up of various entities that may have your hero, or your enemy. Here are the simplest entities you can create a presentation in the game. 
CRAFTY.E (' All, DOM, Color '). attr ({x:0, y:0, w:100, h:100}). Color (' #F00 ');

As you can see, a string of strings are passed into the E () method, which are crafty.js available entity components. You can think of it as a building block. Here our entities include color blocks and are also a component of the components that make it possible to put them into the game. Below you will learn more about components. The entire code will look like this: 
<HTML>  <Head></Head>  <Body>    <DivID= "Game"></Div>    <Scripttype= "Text/javascript"src= "Https://rawgithub.com/craftyjs/Crafty/release/dist/crafty-min.js"></Script>    <Script>Crafty.init ( -, -, document.getElementById ('Game')); CRAFTY.E (', DOM, Color'). attr ({x:0, y:0, W: -, H: -}). Color ('#F00'); </Script>  </Body></HTML>
After execution:

Now that we can show something on the screen, let's try to move it by using the keyboard arrow keys. May be implemented through the "Fourway" component. 
CRAFTY.E (' All, DOM, Color, Fourway ')  0, y:0, w:100, h:100})  . Color (' #F00 ')  . Fourway (4);

Notice that we've added the component behind the string color. When we add a component to the accessible method like ". Fourway". The number passed to the method determines the speed of the operation, so if the number is higher, it will move more quickly.

Let's try to make it look like a platform game where entities can be affected by gravity. This can be achieved through the "Gravity" component. But when we add the gravity component now, the entity will fall because there is nothing to prevent it from falling. So we're going to add a "floor". Notice how we added a component named floor. Because it uses the "group" entity, we can select them. The gravity component can only be added to the entity you want to drop, so we don't need to add it to the floor entity. 
CRAFTY.E (' Floor, I, Canvas, Color ')  0, y:250, w:250, H:10})  . Color (' green ');

We then add the red box and add the gravity component to the entity. 
CRAFTY.E (' All, Canvas, Color, Fourway, Gravity ')  0, y:0, w:50, h:50})  . Color (' #F00 ')  . Fourway (4)  . Gravity (' floor ');

You may notice the parameter "floor" of the ". Gravity ()" method. This means that all entities can be prevented from falling further by the floor component.

Start creating your first game--craftyjs

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