2017•Apress eBooksRequires access

Physics Engine Basics

Aditya Ravi Shankar

Abstract

A physics engine is a program that provides an approximate simulation of a game world by creating a mathematical model for all the object interactions and collisions within the game. It accounts for gravity, elasticity, friction, and conservation of momentum between colliding objects so that the objects move in a believable way. For our game, we are going to be using an existing and very popular physics engine called Box2D.

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Key concepts: Physics engine, Game engine, Object (grammar), Dynamical simulation, Computer science, Physics, Elasticity (physics), Aerospace engineering