在Lua中使用表格显示文字不起作用? [英] Using a table in Lua to display text isn't working?
问题描述
我正在使用Corona SDK，Sublime Text 3和Lua.我在这个特定程序中的目标是制作一个视觉新颖的应用程序，当玩家单击屏幕底部显示的文本以前进到下一个文本输入时，它会发生变化，从而继续故事.
I'm using Corona SDK, Sublime Text 3, and Lua. My goal in this particular program is to make a visual novel app that changes when the player clicks on the text displayed at the bottom of the screen to progress to the next text entry, therefore continuing the story.
我为徽标，标题屏幕和其他内容设置了一堆代码，它们完美地工作了.我目前正在视觉小说场景中尝试做的是通过更改.TEXT属性从表中选择某个值，从而选择文本并制作新文本，从而使用表从中绘制文本.基本上，类似...(下面是一些伪代码)
I set up a bunch of code for logo, title screen, and other things, that works perfectly. What I'm currently trying to do within the visual novel scene is to use a table to draw the text from by change the .TEXT property to select a certain value from the table, therefore selecting the text and making that the new text. Basically, something like... (some dummy code below)
novelText = display.newText (insert the parameters for old text and the old text)
--the variable used to call the value in the table
page = 1
dummy table Novel_pages = {
[1] = nil,
[2] = "new text"
}
(insert runtime event here that calls this function)
page = page + 1
novelText.text = Novel_pages[page]
display.newText(novelText)
那只是伪代码，所以请不要介意格式. :)我只想展示我如何尝试从表中调用这些值，并展示我在做什么，而不必让人们浏览我的所有代码.
That was just dummy code, so please don't mind the format. :) I just want to show how I attempted to call these values from the table, and to show what I was doing without having to make people look through all my code.
所以在Corona SDK模拟器中一切正常，文本甚至只是暂时更改-直到一秒钟后，我收到一条消息，内容为
So everything works fine in Corona SDK simulator, with the text even changing just momentarily -- until one second later, I get a message that reads
"mainl.lua:160: bad argument #1 to 'newText' (string expected, got table)
stack traceback:
[C]: in function 'NewText'
main.lua:160: in function <main.lua: 156>
?: in function <?169>"
现在是我为您提供所有代码的部分！我希望它不要太多，并且我已对问题进行了充分说明.我看不到表中的错误位置，因为它应该只是替换.text而不是替换所有其他属性?然后使用新的文本属性显示，然后完全不必引用该表吗?可能需要程序在显示视觉新颖文本之前处理.text更改时出现问题...
Now's the part where I give you all my code! I hope it's not too much, and that I specified the problem enough. I can't see where I made the error in the table, since it should be JUST replacing the .text and not all the other properties? And then displaying with the new text properties and not have to reference the table at all afterwards? Perhaps there's a problem with needing the program to process the .text change before displaying the visual novel text...
无论如何，请帮助我！我很高兴知道这里出了什么问题，或者被提议替代！非常感谢您:)
Anyway, please help me! I would appreciate knowing what went wrong here, or being proposed an alternative! And thank you so much :)
这是代码-一切都从函数sceneVN()开始！并且请原谅我在游戏C中的艰难对话:这是一个练习项目！
Here's the code -- everything starts in function sceneVN()! And please excuse my cringy dialogue ingame c: It's a practice project!
local store = require( "plugin.google.iap.v3" )
local composer = require("composer")
local scene = composer.newScene()
display.setStatusBar( display.HiddenStatusBar ) -- Removes status bar
coins = 5 -- variable that defines the number of coins player has in the game.It will be different
--in a stand alone game, but as a small app meant to demonstrate function, it's necessary to start off
--with a small, defined number in the beginning.
local logo = display.newImage("/Images/logo.png", 155, 275) --code for my personal logo, drawn by me.
--Not actually showcased in the video because of time limit.
logo.alpha = 0
local function makeTitleTrue()
logo:removeSelf()
print("menu should be TRUE")
titleScreen()
end
local function fadeOut()
transition.to(logo, {time = 1000, alpha = 0, onComplete = makeTitleTrue})
end
transition.to(logo, {time = 1000, alpha = 1, onComplete = fadeOut}) -- end of logo code
function titleScreen() -- beginning of title code, which is not managed as a separate scene
title = true
titleImg = display.newImage("/Images/vn_bg.png", 155, 275)
--titleWords = display.newImage("/Images/TitleWords.png", 155, 275)
--fix to flow towards the upper right corner.
local flare = display.newImage("/Images/flare2.png", 40, 30)
flare.xScale = .5
flare.yScale = .5
local flare2 = display.newImage("/Images/flare2.png", 400, 70)
flare2.xScale = .6
flare2.yScale = .6
local flare3 = display.newImage("/Images/flare2.png", -30, 100)
flare3.xScale = .4
flare3.yScale = .4
local flare4 = display.newImage("/Images/flare2.png", 100, 400)
flare4.xScale = .4
flare4.yScale = .4
local flare5 = display.newImage("/Images/flare2.png", 400, 400)
flare5.xScale = .3
flare5.yScale = .3
local flare6 = display.newImage("/Images/flare2.png", 250, 200)
flare6.xScale = .3
flare6.yScale = .3
local function moveFlare1()
transition.to(flare, {time=2000, x = math.random(-100, 450), y = math.random(-100, 700), onComplete = moveFlare1})
end
local function moveFlare2()
transition.to(flare2, {time=2000, x = math.random(-100, 450), y = math.random(-100, 700), onComplete = moveFlare2})
end
local function moveFlare3()
transition.to(flare3, {time=2000, x = math.random(-100, 450), y = math.random(-100, 700), onComplete = moveFlare3})
end
local function moveFlare4()
transition.to(flare4, {time=2000, x = math.random(-100, 450), y = math.random(-100, 700), onComplete = moveFlare4})
end
local function moveFlare5()
transition.to(flare5, {time=2000, x = math.random(-100, 450), y = math.random(-100, 700), onComplete = moveFlare5})
end
local function moveFlare6()
transition.to(flare6, {time=2000, x = math.random(-100, 450), y = math.random(-100, 700), onComplete = moveFlare6})
end
transition.to(flare, {time=2000, x = math.random(-100, 450), y = math.random(-100, 700), onComplete = moveFlare1})
transition.to(flare2, {time=2500, x = math.random(-100, 450), y = math.random(-100, 700), onComplete = moveFlare2})
transition.to(flare3, {time=2000, x = math.random(-100, 450), y = math.random(-100, 700), onComplete = moveFlare3})
transition.to(flare4, {time=2000, x = math.random(-100, 450), y = math.random(-100, 700), onComplete = moveFlare4})
transition.to(flare5, {time=2000, x = math.random(-100, 450), y = math.random(-100, 700), onComplete = moveFlare5})
transition.to(flare6, {time=2000, x = math.random(-100, 450), y = math.random(-100, 700), onComplete = moveFlare6})
--add options that can when the screen is tapped, tap on an option twice to select
-- start story
-- continue story
-- coin gambling
-- end game
if (title == true) then
Runtime:addEventListener("tap", sceneVN)
end
end
function forceQuit()
function quit()
os.exit()
end
timer.performWithDelay(1000,quit)
end
function sceneVNChapter2()
return
end
function sceneVN() -- the actual visual novel code itself
display.remove(titleImg)
--display.remove(titleWords)
display.remove(flare)
display.remove(flare2)
display.remove(flare3)
display.remove(flare4)
display.remove(flare5)
display.remove(flare6)
title = false
local coinSheetData =
{
width = 32,
height = 32,
numFrames = 8,
}
local coinimageSheet = graphics.newImageSheet( "/Images/spinning_coin.png", coinSheetData )
local sequenceData =
{
name= "spinning_coin",
start = 1,
count = 8,
time = 1000,
loopCount = 0
}
--the properties of the name plate that can be changed ingame by using ".text" property
local nameOptions =
{
text = "Frankenstein",
x = 165,
y = 450,
width = 310,
font = "Charlesworth.ttf",
fontSize = 22,
align = "left"
}
local bg = display.newImage("/Images/bg4.jpg", 155, 275)
textRect = display.newRect(155, 525, 325, 200)
textRect:setFillColor(.02, .02, .02)
textRect.alpha = .6
page = 1
local frames = display.newImage("/Images/windowframes_gold.png", 155, 275)
display.newText(nameOptions)
local VN_pages = {
[1] = nil,
[2] = "\"Then, seeing as this is a simulation of\n a visual novel dating sim, I have no\n choice but to ask you...\"",
[3] = "\"My lady, would you go on a date with me?\nFrankenstein... butler of the fineest noble,\nCadis Etrama di Raizel?\"",
[4] = "duck",
[5] = "duck",
[6] = "duck",
}
local displayNovelText = display.newText("\"I see. So I\'m supposed to pretend I am\na character in a multi-chapter phone\napp that you\'ve been reading...\"", 165, 500, "Goudy Old Style Regular.ttf", 17)
function changePage()
print("dang it")
page = page + 1
displayNovelText.text = VN_pages[page]
display.newText(displayNovelText)
end
textRect:addEventListener("tap", changePage)
if (coins < 10) then
coinsDigits = 2
else
if (coins > 9) and (coins < 100) then
coinsDigits = 3
else
if (coins > 99) and (coins < 1000) then
coinsDigits = 4
else
if (coins > 999) and (coins < 10000) then
coinsDigits = 5
else
if (coins > 9999) and (coins < 100000) then
coinsDigits = 6
end
end
end
end
end
cooin = display.newSprite(coinimageSheet, sequenceData)
cooin.x = 25
cooin.y = 30
cooin:play()
coinText = display.newText("1", 57 + 4 * coinsDigits, 32, "VCR_OSD_MONO_1.001.ttf", 25)
coinText.text = coins
coinTimer = timer.performWithDelay(2000, cooin, 1)
end
function choiceMade( event ) --the scenes where all the choices are made
if (event.action == "clicked") then
local i = event.index
if (i == 1) then
Runtime:removeEventListener()
titleScreen()
else
if (i == 2) then
system.openURL( "https://www.paypal.com/us/home" )
else
if (i == 3) then
return
end
end
end
end
end -- end of choice scenes
function Outofcoins()
--native alert lack of zero coins
local alertMessage = "Uh oh, looks like you've run out of coins! To continue reading the story, would you like to buy or gameble for coins?"
native.showAlert( "Out of coins!", alertMessage, {"Gamble for coins", "Purchase coins", "Exit to Menu"}, choiceMade)
end
if (coins == 0) then -- conditional branch that alerts Outofcoins if no coins left
Outofcoins()
end
function sceneGambleStart()
function earntCoins()
numberEarnt = 0
local coinsGot = display.newImage("/Images/coins_gold.png", 155, 275)
coinsGot.alpha = 0
local function fadeOutCoinsEart()
transition.to(logo, {time = 2000, alpha = 0})
display.remove(coinsGot)
end
local transitionFade = transition.to(logo, {time = 2000, alpha = 1, onComplete = fadeOutCoinsEarnt})
timer.performWithDelay(2000, transitionFade, 1)
coinText.text = coins + numberEarnt
end
local function gamblerIntro()
nameOptions.text = "Gambler"
local bg = display.newImage("/Images/bg4.jpg", 155, 275)
textRect = display.newRect(155, 525, 325, 200)
textRect:setFillColor(.02, .02, .02)
textRect.alpha = .6
local frames = display.newImage("/Images/windowframes_gold.png", 155, 275)
display.newText(nameOptions)
if (gambleVisit == false) then
display.newText("\"Welcome to the coin gambling shop!\nHere's your chance to earn free coins\nwithout having to use the app store!", 165, 500, "Goudy Old Style Regular.ttf", 17)
--display.newText("\"You can play here once a day if you\'ve\nNO coins in your inventory! You are\ngiven three tries at any game each visit.", 165, 500, "Goudy Old Style Regular.ttf", 17)
--display.newText("\"So, then! What games will you play\nin our shop today? \n \n", 165, 500, "Goudy Old Style Regular.ttf", 17)
else
display.newText("\"Welcome back, player! You have\nthree tries left. So, what games\nwill you try your hand at?", 165, 500, "Goudy Old Style Regular.ttf", 17)
end
end
local function sceneDiceRoll()
--local show background graphics
--draw dice on screen, with function ready to shake/transition on screen when accelerometer
--transition hands up and drop dice animation
-- if dice = # chosen then give coins
end
local function sceneCardChoose()
-- a function that defines the mechanics of the card game.
--draw several options on the screen:
--3 cards, earn 5 coins.
--6 cards, earn 15 coins.
--9 cards, earn 30 coins.
--The player needs 5 coins to read another chapter, but by increasing card numbers,
--depending on the player's choice, show the images of the cards (with whatever numbers, always set)
-- on the screen and allow the player to choose a card. Make a shuffling animation.
-- lay all the cards on the screen, now with randomised positions defined by a number.
--the player may choose one. Event listener, if the number defined = card number, the card flips,
--shows its number, and the player wins the coins. defer to earntCoins.
--if the player chooses the wrong card, show him a "WRONG CARD" result, and ask if he would like another
--round or to exit to the main shop.
return
end
local function sceneGuessNumber()
--this game is not created, but is a dummy function that's shown here. It's included in the
--options to show that if this were a real game, that's what it would look like
return
end
end
推荐答案
错误消息指出了您所需要的一切:
The error message says all you need:
"mainl.lua:160:'newText'的错误参数#1(预期字符串，得到了 表格)
"mainl.lua:160: bad argument #1 to 'newText' (string expected, got table)
如果转到代码的第160行，则会发现以下内容:
if you go to line 160 of your code you'll find the following:
display.newText(displayNovelText)
您需要在上面几行:
local displayNovelText = display.newText("sometext")
请参阅display.newText文档，以了解如何正确使用此功能.
Refer to the display.newText documentation to find out how to use this function correctly.
https://docs.coronalabs.com/api/library/display /newText.html
您将看到display.newText()不返回字符串，而是一个文本对象. 它还不将文本对象作为输入.这就是错误消息告诉您的内容.
You'll see that display.newText() does not return a string, but a text-object. It also does not take a text-object as input. That's what the error message is telling you.
要访问displayNovelText的文本，您必须编写displayNovelText.text，您可以将其塞入display.newText()等其他选项中.
To access the text of displayNovelText you have to write displayNovelText.text which you can stuff into display.newText() among other options...
请确保您始终阅读所使用功能的文档.如果您不知道自己在做什么，就不会成功.
Please make sure you always read the documentation of functions you use. You cannot be successful if you don't know what you are dealing with.
这篇关于在Lua中使用表格显示文字不起作用?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
