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The startmovie method is used declaring the
global variable, functions used for initialization and other cleanup operations
(which will be clearer as we proceed).
global objxml,objfileio,errorcode,parsedlist,errorString,file_data,points,i,iter global flag, answer
on startmovie me points=0 i=1 flag=false answer=""
end
-- checking the correct ans and performing the cleanup operations on checkanswer(i) me if(flag=true) then correct_ans=objxml.child[1].child[i-1].child[5].child[1].text if(answer=correct_ans) then points=points+1 alert("correct answer!!!!!!!") flag=false end if end if channel(10).removeScriptedSprite() endAfter clicking on the next button in the main
screen, the main menu screen appears. The main tasks to be performed are :
loading of xml files , parsing the selected xml file which is based on the
radio button selected by the user from the main menu for the Quiz category. Here
we have four categories geography, history, science and general corresponding
to which we have four xml files . Based on the option selected by the user, the objfileio object (fileio type) is used to read from the xml file. Then, the
parsing of xml file is done using the objxml object (xmlparser type).
on mouseUp me
-- Accessing the xml data file objxml=new xtra("xmlparser") objfileio=new xtra("fileio")
--Retrieving the xml files from the appropriate path
if (sprite("menu1").selected=true) then objfileio.openfile("c:\\geography.xml",1)
else if (sprite("menu2").selected=true) then objfileio.openfile("c:\\history.xml",1)
else if (sprite("menu3").selected=true) then objfileio.openfile("c:\\science.xml",1)
else if (sprite("menu4").selected=true) then objfileio.openfile("c:\\general.xml",1)
end if
--Reading the file and parsing it using xml parser file_data=objfileio.readfile() objxml.ignorewhitespace(true) errorcode=objxml.parsestring(file_data)
-- Retrieve the error string in case of error errorString=objxml.getError() parsedlist=objxml.makelist()
if (voidP(errorString)) then -- Initializing the iter to no. of questions iter=(objxml.child[1].child.count)+1 else alert "Sorry,could not retrieve data" & errorString -- Exit from the handler exit end if
_movie.go("second") _movie.sendSprite(7,#mouseUp, me)
endWhen we click on the next button in the main
menu screen, control goes to the quiz screen. The loading of the questions is done. The text and
captions for the radio buttons for each of the quiz questions are picked up
from the parsedlist. Whether the question contains any image or
not is identified by tag type i.e. “image_quest” in the “general.xml” file. The checkanswer function will be iterated based on the number of
questions in the file which is taken care of by the variable i.
on mouseUp me checkanswer(i)
if i<iter then
-- Handling the question with images
if (objxml.child[1].child[i].name="image_quest") then img=objxml.child[1].child[i].child[6].attributevalue[1] sprite("txtdisplay").visible=false sprite("image_text").visible=true sprite("image_text").text=objxml.child[1].child[i].attributevalue[1] sprite("radio_b1").label=objxml.child[1].child[i].child[1].child[1].text sprite("radio_b2").label=objxml.child[1].child[i].child[2].child[1].text sprite("radio_b3").label=objxml.child[1].child[i].child[3].child[1].text sprite("radio_b4").label=objxml.child[1].child[i].child[4].child[1].text updateStage() else
-- Unselecting the radio buttons sprite("radio_b1").selected=false sprite("radio_b2").selected=false sprite("radio_b3").selected=false sprite("radio_b4").selected=false
else if i>=iter then -- Going to the end marker and displaying the results _movie.go("end") member("result").text="Your score is: " & points i=0
end if
i=i+1 end The click method is
called when user selects any of the radio buttons in the quiz screen. All the
other radio buttons are de-selected to avoid the multiple button selection. The
caption of the radio button selected by the user is stored in global variable answer for verification of the answer later on.
on click me sprite("radio_b1").selected=false sprite("radio_b2").selected=false sprite("radio_b3").selected=false sprite("radio_b4").selected=false sprite(me.spritenum).selected=true flag=true answer=sprite(me.spriteNum).label endThe checkanswer function in the startmovie
method compares the actual answer with the value in the answer variable and if the answer matches then dialog
containing the “correct answer” text pops up. After all the Quiz questions in the parsedlist are displayed, control goes to result screen. The score
is displayed in the text field of the result screen.
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