当我尝试与BCloud1.png床发生碰撞时,我试图将全局'BCoud1'(零值)编入索引?有什么简单的方法来解决这个错误?
我做到了这一点:
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
temp.imgpath = "BCloud"..tostring(math.random(1, 3))..".png";
physics.addBody( BCloud1, { density=3.0, friction=0.5, bounce=0.3 } )
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()
local function onLocalCollision1( self, event )
if ( event.phase == "began" ) then
print (" Collision1 ")
elseif ( event.phase == "ended" ) then
end
end
BCloud1.collision = onLocalCollision1
BCloud1:addEventListener( "collision", BCloud1.png)
答案 0 :(得分:1)
您在哪里创建名为BCloud1的显示对象?
在您的代码中:
BCloud1.collision = onLocalCollision1
BCloud1:addEventListener( "collision", BCloud1.png)
BCloud1需要存在,您发布的代码永远不会创建。我怀疑它是从你的getRandomStar()函数开始的。您永远不会返回创建的对象。但是在上面的eventListener设置中,你将BCloud1.png视为一个名为BCloud1的表,其成员名为.png,虽然看着它,BCloud1.png听起来像是图像的文件名。也许你错过了类似的东西:
BCloud1 = display.newImage(“BCloud1.png”)