BOX 2D

Using Box2d physics, I create several different images, such as bricks, and walls, and ice. Here is a sample of the code:

function brick(x, y, visible)
--create brick bitmap object from brick graphic
local brick = Bitmap.new(Texture.new("./brick.jpg"))
--reference center of the brick for positioning
brick:setAnchorPoint(0.5,0.5)

brick:setVisible(visible)
brick:setPosition(x,y)

--create box2d physical object
local body = world:createBody{type = b2.DYNAMIC_BODY}
body:setPosition(brick:getX(), brick:getY())
body:setAngle(brick:getRotation() * math.pi/180)
local poly = b2.PolygonShape.new()
poly:setAsBox(brick:getWidth()/2, brick:getHeight()/2)
local fixture = body:createFixture{shape = poly, density = 1.5,
friction = 0.8, restitution = 0.5} --increased density, friction, less restitution
brick.body = body
brick.body.type = "brick"

--add to scene
stage:addChild(brick)
end





function ice(x, y, scale, xScale, yScale, strength)
--create brick bitmap object from brick graphic
local ice = Bitmap.new(Texture.new("./ice.png"))
--reference center of the brick for positioning
ice:setScale(scale)

ice:setScaleX(xScale)

ice:setScaleY(yScale)

ice:setAnchorPoint(0.5,0.5)

ice:setPosition(x,y)

--create box2d physical object
local body = world:createBody{type = b2.DYNAMIC_BODY}
body:setPosition(ice:getX(), ice:getY())
body:setAngle(ice:getRotation() * math.pi/180)
local poly = b2.PolygonShape.new()
poly:setAsBox(ice:getWidth()/2, ice:getHeight()/2)
local fixture = body:createFixture{shape = poly, density = 0.5,
friction = 0.01, restitution = 0.3} --increased density, friction, less restitution
ice.body = body
ice.body.type = "ice"

strength = 100
ice.body.strength = strength
ice.body.bitmap = ice


--add to scene
stage:addChild(ice)
end




wall(260, 215, 5, 200, true, 90)

brick(180, screenH - 20, true)
ice(180, screenH - 60, .4,0.4,.35)

brick(280, screenH - 20, true)
ice(280, screenH - 60, .4,.4,.35)



ice(185,200, .4, 0.45, .35, 100)
ice(295,200, .4, 0.45, .35, 100) -- set xScale = 0
ice(240, 150, .3, 0.8, .35, 100)
ice(425, screenH - 105, .3, 0.3, 1.5, 100)

That sets up a "scenario" where you use a ball to hit the objects. I want to have it so that when you score 60 points, a new level starts. Do do this, the ice, bricks, wells ect would need to be deleted so that I can create new walls and bricks to create a new situation. Any ideas?
Thanks.