Question

我正在使用Corona SDK制作游戏应用，当我点击我的界面中尝试加载第一个场景的开始按钮时，我收到了错误。

以下是我的代码：

main.lua

`local storyboard = require "storyboard"
storyboard.gotoScene("menu")`

menu.lua

`local storyboard = require( "storyboard" )
local scene = storyboard.newScene()
local widget = require( "widget" )`

`local background = display.newImage("Legend of Kael.jpg", true) 
background.x = display.contentWidth / 2
background.y = display.contentHeight / 2`

`local roundedRect = display.newRoundedRect( 10, 50, 300, 40, 8 )
roundedRect.anchorX, roundedRect.anchorY = 0.0, 0.0     
roundedRect:setFillColor( 0/255, 0/255, 0/255, 170/255 )`

`local function handleButtonEvent( event )
if ( "ended" == event.phase ) then
storyboard.gotoScene( "scene1", "crossFade", 400)
end
end`

`local button = widget.newButton
{
defaultFile = "buttonBlue.png",
overFile = "buttonBlueOver.png",
label = "Start Game",
emboss = true,
onEvent = handleButtonEvent,
}`

`button.x = 240; button.y = 200`

`function scene:createScene( event )
local group = self.view
end`

`function scene:enterScene( event )
storyboard.purgeScene("main")
local group = self.view
end`

`function scene:exitScene( event )
local group = self.view
storyboard.removeScene("main")
end`

`scene:addEventListener("createScene", scene)
scene:addEventListener( "enterScene", scene )
scene:addEventListener( "exitScene", scene )`

`return scene`

scene1.lua

`local physics = require "physics"
physics.start()`

`local storyboard = require ("storyboard")
local scene = storyboard.newScene()`

`function scene:createScene(event)`

`local background = display.newImage("forest1.jpg" ,display.contentWidth, display.contentHeight)
background.x = display.contentWidth / 2
background.y = display.contentHeight / 2`

`local ground = display.newImage("ground.png")
ground:setReferencePoint(display.BottomLeftReferencePoint)
ground.x, ground.y = 0,420`

`local groundShape = {-420, -20, 420, -20, 420, 20, -420, 20}
physics.addBody(ground, "static", {friction = 1.0, density = 1.0, bounce = 0, shape = groundShape})`

`local char = display.newImage("char.png")
char.x = 70
char.y = 230`

`physics.addBody(char, {friction = 1.0, density = 1.0, bounce = 0.3, radius = 35})
char.isFixedRotation = true`

`local function onScreenTouch(event)
if event.phase == "began" then
char:applyForce(100, -500, char.x, char.y)
end`

`return true
end`

`end`

`Runtime:addEventListener("touch", onScreenTouch)`

`scene:addEventListener("createScene", scene)`

`return scene`

我得到的错误是：

`assertion failed!
stack traceback:`

`[C]: in function 'error'
?: in function 'gotoScene'
menu.lua:17:in function '_onEvent'
?: in function '?'
?: in function <?:424>
?: in function <?:218>`

我希望你能找到解决这个问题的方法。谢谢.. :)）

Answer 1

你应该研究Composer因为 “不仅Composer更容易使用，而且它还可以让我们在将来构建更好，更有趣的东西。”

关于您的错误，这很可能是因为故事板试图调用实际上不可用的函数。我最好的建议是你阅读有关作曲家的内容并仔细阅读教程。由于故事板不再受支持，因此作曲家更容易。

Answer 2

我怀疑它是因为你永远不会在故事板的视图组中添加任何东西（即本地组= self.view）。通常，您的背景和按钮将位于故事板的createScene（）函数中。创建这些对象后，您可以将它们中的每一个插入到场景的视图中......

 group:insert( background )

例如

。由于您的场景视图为空，因此可能会抛出该错误。

罗布

使用widget.newButton（）的gotoScene错误

2 个答案: