This document describes using Corona's physics engine to simulate a circle bouncing on a static rectangle at the bottom of the screen. It loads the physics module, creates a circle sprite with a radius of 40 pixels positioned at x=150 and y=100, and applies physics properties to make it a dynamic body with density, friction, and bounce values. It also creates a static rectangle sprite at the bottom of the screen to represent the "foot" and applies matching physics properties to it.

1. Physics
by Itsara Thipwatana
e-mail: ojt26@hotmail.com Tel. 089-618-3269

2. local physics = require "physics”
physics.start()
local circle = display.newCircle(0,0,40)
circle.x = 150
circle.y = 100
physics.addBody(circle, {density = 1.0, friction = 0.3, bounce = 0.5})
local foot = display.newRect(0,0, display.contentWidth, 20)
foot.y = display.contentHeight – 10
physics.addBody(foot, "static", {density = 1.0, friction = 0.3, bounce = 0.5})