More For Game Developers How to Built A Career in the Gaming Industry ArrayList refers to a list of other data types that can be dynamically resized and PVector refers to a two or three-dimensional vector. Boolean and float are primitive data types boolean refers to a value that can be either true or false, and float refers to a number that, unlike an integer, can specify a whole number and a decimal part.ĪrrayList and PVector are composite data types. Here is a short overview of the data types used to add properties to the game. To keep the article simple, the following section is divided into different steps of coding the game. Try watching this video on or enable JavaScript if it is disabled in your browser. The score increases whenever the snake collides with the objective.The game ends if the snake’s head collides with its tail.The objective gets a new random position when it collides with the snake’s head.When the snake reaches the screen’s border, it is teleported to the opposite position.The first rectangle of the snake represents the head of the snake and it is only the head that can trigger collision events with the objective and tail.The snake and objective are drawn using rectangles. Here are the requirements of the game, followed by a description of the code further below. Prepare to Create the Classic Snake GameĪs with every project, it can be a great idea to establish a couple of requirements to set the direction and outline an overview of necessary features. More on Gaming From Built In What Does the Future of Gaming Look Like?Ģ. Figure 1: Display the direction of the horizontal axis (x) and vertical axis (y) within Processing’s graphical interface. Drawing shapes within Processing is very simple because the library provides primitive two-dimensional methods such as rect(x, y, w, h), circle(x, y, r) or line(x1, y1, x2, y2). Processing also provides a graphical interface where the point (x, y) = (0, 0) is at the left top corner (see figure one below). keyPressed() executes when a key is pressed, and the key is stored in a variable named key.draw() executes forever and is called a number of times matching the frame rate.setup() is called one time when the application starts.Another built-in method I’ll introduce later is keyPressed(). Two important methods to know to get started with Processing are the methods setup( ) and draw(). Processing provides many methods to control the flow of an application, for example: control key events, initialization or continuous behavior. You can download and install Processing make sure to download the installable matching your preferred platform. The library is built on Java and provides additional classes and simplifications. Processing is a graphical library and integrated development environment (IDE). More From Our Software Engineering Experts Create React App and TypeScript - A Quick How-To The movement of the snake is created by looping the snakePositions in reversed order and assigning the position of each element to the position of the element before reaching the snake’s head which is moved towards the direction specified in snakeDirection. ArrayList can be used to create a dynamically sized list and PVector specifies a vector, and provides methods to calculate the distance between vectors. setup(), draw(), and keyPressed() are built-in Processing methods used to handle initialization, continuous behavior, and keypress events. It provides a graphical interface that can be used to draw different shapes and text. Processing is a graphical library and a development environment (IDE).
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