createjs/easeljs
Easeljs
EaselJS is a JavaScript library for creating interactive 2D graphics and animations using the HTML5 Canvas element. It functions as a 2D animation framework, a canvas scene graph manager, and an interaction wrapper for detecting and responding to mouse and touch events.
The library features a rendering pipeline that utilizes WebGL to increase the drawing performance of bitmap and cached content. It organizes visual elements into a hierarchical display list, allowing nested groups of 2D graphics objects to be transformed and animated as single units.
Its capabilities cover the rendering of vector graphics and text, as well as the management of sprite sheets for frame-based animations. The system coordinates these elements through a centralized tick manager to synchronize time-based updates and animations.
Features
- 2D Graphics Frameworks - Provides a comprehensive framework for rendering and animating 2D graphics, shapes, and text on a canvas.
- HTML5 Canvas Libraries - Provides a complete JavaScript library for creating interactive 2D graphics and animations using the HTML5 Canvas element.
- Scene Graphs - Employs a scene graph to organize visual elements and calculate global transforms during the rendering process.
- 2D Game Frameworks - Offers a framework for building interactive 2D games with sprite animations and a structured display list.
- Scene Management Systems - Implements a scene management system to organize visual elements into nested groups for collective transformation.
- Canvas Frame Animations - Enables the creation of interactive visual sequences by programmatically redrawing 2D objects on an HTML5 canvas.
- Scene Graphs - Organize 2D graphics into a nested tree structure to transform and animate groups of objects as a single unit.
- Animation Frame Synchronization - Coordinates time-based updates and animation frames through a centralized tick manager.
- Centralized Managers - Provides a centralized tick manager to synchronize animation frames and time-based updates across all visual objects.
- Coordinate Transform Hierarchies - Manages nested coordinate spaces and geometric transformations that propagate down a hierarchical display list.
- Display List Renderers - Uses a hierarchical display list to organize graphics into a parent-child tree for efficient rendering and transformation.
- Canvas Interaction Mapping - Implements a system that translates raw canvas coordinates into interaction events for individual graphics objects.
- Interaction Event Buses - Ships an interaction model that detects hits and bubbles input events from child objects up to the root.
- Interaction Handling - Provides utilities for detecting and responding to mouse and touch input events across canvas objects.
- WebGL Rendering Pipelines - Utilizes a WebGL-accelerated rendering pipeline to increase the drawing performance of bitmap and cached content.
- 2D Sprite Animations - Enables frame-based animations by displaying specific segments of a bitmap sprite sheet.
- Vector Graphics Renderers - Provides a specialized interface for drawing high-performance 2D vector shapes and paths.
- Text Rendering - Renders text as integrated objects within the canvas display list with font and style support.
- WebGL & GPU Rendering - Utilizes a WebGL-accelerated pipeline to increase drawing performance for bitmap data and cached content.
- Sprite Animations - Implements sprite animations by mapping specific regions of a bitmap sheet to simulate frame-based motion.
- Interactive Graphics - Allows for the creation of 2D vector graphics that respond to user touch and mouse interactions.
- Canvas and WebGL Graphics - Library for building interactive 2D HTML5 content.
- Creative Coding Frameworks - Tools for working with HTML5 Canvas.
- Game Engines and Frameworks - Library for working with HTML5 Canvas.
- Graphics and Rendering - Canvas-based 2D graphics library.
