![](/img/trans.png)
[英]Corona SDK saying attempt to call method 'removeSelf()' (a nil value)
[英]attempt to call method 'translet' (a nil value) in corona
对于这个函数fallingCoins()
,我在我的代码中向后移动硬币,当锚接触硬币时我需要隐藏这些硬币。
function fallingCoins()
local myPlayer = display.newCircle( math.random(20,_W+20), -25, math.random(10,10) )
myPlayer:setStrokeColor(255, 128, 0 )
myPlayer:setFillColor(math.random(245,255),math.random(210,223),7)
myPlayer.myName = "myPlayer"
physics.addBody( myPlayer, "static" )
myPlayer.y = "150"
local function muovi()
myPlayer:translate(-2, 0)
end
Runtime:addEventListener( "enterFrame", muovi );
end
timer.performWithDelay( 3000, fallingCoins )
如果碰到锚,我就会隐藏硬币。
function onCollision3( event )
if(event.object1.myName == "guy" and event.object2.myName == "myPlayer") then
event.object2:removeSelf();
end
end
Runtime:addEventListener( "collision", onCollision3 )
如果我触摸硬币然后我就会收到此错误
"---------------------------
Corona Runtime Error
---------------------------
...as\desktop\run2\scroll\scrolling background\main.lua:123: attempt to call method 'translate' (a nil value)
stack traceback:
[C]: in function 'translate'
...as\desktop\run2\scroll\scrolling background\main.lua:123: in function <...as\desktop\run2\scroll\scrolling background\main.lua:122>
?: in function <?:218>
Do you want to relaunch the project?
---------------------------
Yes No
---------------------------
"
请帮我,我在做错了..
translate方法可以应用于显示对象。 在这里你的对象也是一个物理,对象。 你可以改变有问题的行:
myPlayer.x = myPlayer.x - 2
PS:但在这种情况下,它会快速移动^^
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