Step 4

Week 4 (February 19-26) — Iterators

• Making decisions w/ conditionals:http://www.youtube.com/watch?v=HDQDN1FWuZ8
• Loops in lua: http://www.lua.org/pil/4.3.4.html

To deliver:

• 3 objects that require decisions

This week's summary:

What I learned:

Iterators 

• if -then - kind of like a cause and effect.  When condition is fulfilled, then output result
• else - it's basically the default of the if-then statement.  It's like saying, if the condition isn't fulfilled, then the out put will be ________
• elseif - Allows for more than one condition to be set.  It's like saying: if the first condition isn't met, then look at this condition.  And it this condition isn't met, then the output will be _________
• I used an if-then statement in my event/event listeners:

local function readToMeTouch( event )

if event.phase =="began" then

local storyboard = require "storyboard"

storyboard.gotoScene( "story" )

end

return true

end

readToMe:addEventListener( "touch", readToMeTouch )

The if-then in this case says that if the phase of the event has begun, then the app should move to the scene called "story"

Parts of the if-then statements:

always ends in "end"

ex: 

if (condition) then
--perform an action
elseif
--perform an action
else
--perform an action

end

Some great resources:

• http://www.youtube.com/watch?v=7N_MSpOriHM
• http://docs.coronalabs.com/api/library/display/newImageRect.html (create imageRect)
• http://teamtreehouse.com/

My functioning code so far:

https://drive.google.com/folderview?id=0B406rJ0oHVzZTkp0V0QtSnF3WU0&usp=sharing