subprotocol/verlet-js
Verlet Js
verlet-js is a JavaScript 2D physics engine and Verlet integration library used to simulate point masses and geometric constraints. It functions as a computational tool for calculating particle movement and structural interactions to create stable physics animations in browser environments.
The project acts as a geometric constraint solver that enforces fixed distances and angles between interconnected nodes. This allows for the modeling of complex physical shapes and structures, such as cloth or rigid bodies, by iteratively adjusting particle positions.
The engine includes a canvas animation framework that synchronizes physics states with a browser rendering loop. It utilizes fixed timestep simulation to ensure deterministic behavior and prevent numerical instability during real-time execution.
Features
- Verlet Integration Methods - Implements numerical integration techniques that track coordinate history to maintain stability in real-time physics simulations.
- Verlet Integration - Applies Verlet integration to calculate positions and velocities for stable, interactive 2D particle dynamics.
- 2D Physics Simulations - Provides a simulation environment for gravity, friction, and collisions within a two-dimensional plane.
- Structural Constraint Enforcement - Maintains fixed distance and angular relationships between particles to construct stable structural shapes.
- Gauss-Seidel Constraint Solvers - Employs iterative solvers to resolve distance and angle constraints, maintaining structural stability for complex shapes.
- Physics Simulation Engines - Serves as a software system that calculates physical interactions and dynamics for interactive 2D browser environments.
- Simulation Timestepping - Controls discrete time intervals and sub-stepping to ensure the stability and determinism of the physics simulation.
- 2D Particle Simulators - Calculates point mass movement and interaction in two-dimensional space using numerical integration.
- Geometric Constraint Solvers - Calculates spatial positions of particles by solving geometric relationships to create structures like cloth and webs.
- Verlet Integration Loops - Provides the numerical integration foundations necessary to calculate positions and velocities in physics simulations.
- Physics Constraint Graphs - Uses a graph structure of interconnected nodes and edges to propagate physical forces and constraints.
- Fixed-Timestep Loops - Ensures deterministic physics behavior by advancing simulation at a constant rate decoupled from frame rendering.
- Render Loops - Implements sequential update cycles that synchronize physics logic and screen redrawing within the browser.
- Canvas-Based Animation Frameworks - Provides a rendering cycle framework for executing and synchronizing physics states on a canvas surface.
- Physics-Based Animations - Creates natural, responsive movement behaviors in the browser by applying real-world physical properties to animations.
Star history
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