Difference between revisions of "B2.CircleShape"
From GiderosMobile
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=== Examples === | === Examples === | ||
'''Creating a circle body''' | '''Creating a circle body''' | ||
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--create ball bitmap object from ball graphic | --create ball bitmap object from ball graphic | ||
local ball = Bitmap.new(Texture.new("./ball.png")) | local ball = Bitmap.new(Texture.new("./ball.png")) | ||
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local fixture = body:createFixture{shape = circle, density = 1.0, | local fixture = body:createFixture{shape = circle, density = 1.0, | ||
friction = 0.1, restitution = 0.2} | friction = 0.1, restitution = 0.2} | ||
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{|- | {|- | ||
Latest revision as of 18:18, 12 July 2023
Supported platforms: 
Available since: Gideros 2011.6
Inherits from: b2.Shape
Description
A circle shape.
Examples
Creating a circle body
--create ball bitmap object from ball graphic
local ball = Bitmap.new(Texture.new("./ball.png"))
--reference center of the ball for positioning
ball:setAnchorPoint(0.5,0.5)
ball:setPosition(x,y)
--get radius
local radius = ball:getWidth()/2
--create box2d physical object
local body = world:createBody{type = b2.DYNAMIC_BODY}
body:setPosition(ball:getX(), ball:getY())
body:setAngle(ball:getRotation() * math.pi/180)
local circle = b2.CircleShape.new(0, 0, radius)
local fixture = body:createFixture{shape = circle, density = 1.0,
friction = 0.1, restitution = 0.2}
Methodsb2.CircleShape.new |
EventsConstants |
