Glossary

Term	Definition
JavaFX	A Java library used for building graphical user interfaces (GUIs) and creating desktop applications. It provides tools for creating interactive applications with ease.
IDE (IntelliJ IDEA)	Integrated Development Environment used for writing and debugging code. IntelliJ IDEA is widely used for Java development, including JavaFX applications.
Plugin	A software add-on that provides additional functionality to an application. For example, the JavaFX plugin in IntelliJ IDEA helps with JavaFX development.
FXML	An XML-based language used to define the user interface in JavaFX applications. It separates the UI design from the application logic for easier development.
Controller	A Java class that connects the logic of the application to the user interface elements defined in an FXML file.
Scene	The visual container in a JavaFX application where UI elements are displayed. Think of it as the "canvas" on which you design your application.
Stage	The primary window in a JavaFX application. A "Stage" contains a "Scene" and represents the main application window.
VBox	A layout container in JavaFX that arranges UI elements vertically.
AnimationTimer	A JavaFX class used to create a continuous loop for updating animations or handling repetitive actions.
Timeline	A JavaFX class used to create frame-based animations by defining a sequence of keyframes.
Sprite	A 2D image or graphic used in animations or games. It represents characters, objects, or other visual elements in a game.
Sprite Sheet	A collection of multiple images (frames) arranged in a grid or folder structure, used for creating animations by cycling through the frames.
KeyFrame	A point in a Timeline animation that defines a specific change or action (e.g., changing an image).
Directional Animation	Animations that change based on movement direction (e.g., walking up, down, left, or right).
Velocity	The speed and direction of an object’s movement. In JavaFX, it’s often controlled using variables like velX and velY.
Keyboard Input	The process of capturing user key presses to control elements in an application, such as moving a character in a game.
Idle State	A state where no actions or movement are happening. For example, when no movement keys are pressed, a character can display a still (idle) animation frame.
Mouse Interaction	Capturing user actions like mouse clicks, hovering, or dragging to interact with the application.
Group	A JavaFX node that acts as a container for other nodes (UI elements). It allows you to group multiple elements together for easier manipulation.

| Preloading | A technique used to load resources (e.g., images) before the application starts to reduce lag and improve performance. | | Button | A clickable UI element in JavaFX that triggers specific actions when clicked. |

| Smooth Movement | Movement that updates the position of an object in small increments to create fluid motion, often achieved using velocity-based calculations. | | Opacity | The transparency of a UI element in JavaFX. A value of 1 means fully visible, while 0 means completely invisible. | | Lazy Loading | Loading resources like images only when they are needed to save memory and improve application performance. |