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在下面代码的第 6 行，我添加了一个Runtime:addEventListener("collision", onCollision)，但它正在与带有身体的所有东西交互，在这种情况下如何将碰撞侦听器排除到一个对象'BCloud1.png'

function getRandomStar()
    local temp = starTable[math.random(1, #starTable)] -- Get a random star from starTable
    local randomStar = display.newImage(temp.imgpath) -- Set image path for object

    if ( temp.imgpath == "BCloud1.png" ) then
    physics.addBody( randomStar, "static", { density=.1, bounce=.1, friction=.2, radius=45 } )
    Runtime:addEventListener("collision", onCollision)
    temp.imgpath = "BCloud"..tostring(math.random(1, 3))..".png";
    end

    if ( temp.imgpath == "BCloud2.png" ) then
    temp.imgpath = "BCloud"..tostring(math.random(1, 3))..".png";
    physics.addBody( randomStar, "static", { density=.1, bounce=.1, friction=.2, radius=45 } )  
    end

    if ( temp.imgpath == "BCloud3.png" ) then
    temp.imgpath = "BCloud"..tostring(math.random(1, 3))..".png";
    physics.addBody( randomStar, "static", { density=.1, bounce=.1, friction=.2, radius=45 } )  
    end

    randomStar.myName = "star" -- Set the name of the object to star
    randomStar.movementSpeed = temp.movementSpeed; -- Set how fast the object will move
    randomStar.x = math.random(-30, _W);    
    randomStar.y = -35;
    randomStar.rotation = math.random(0,20) -- Rotate the object

    starMove = transition.to(randomStar, {
        time=randomStar.movementSpeed, 
        y=500,
        onComplete = function(self) self.parent:remove(self); self = nil; 
        end
        }) -- Move the star
end--END getRandomStar()
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1 回答 1

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如果你想使用 

Runtime:addEventListener("collision", onCollision)

并控制什么与什么发生碰撞，然后使用碰撞过滤器。它们看起来要容易得多。

这是我在学习它们时使用的教程。

碰撞过滤器

于 2013-03-04T20:34:20.637 回答