@peach, I guess I should let the particle candy people know about the white square I saw?

Hi ask, it must be something I am doing. I took your code and put it in an empty main.lua file and it worked perfectly. I then put it in my code and all I get are rectangles!!!

Adrian

UPDATE:

I've done some testing and the problem lies when trying to draw a line on top of a background image. I've set up a quick test project. When the image and the line do not connect, there's no problem. When I introduce my "config.lua" which turns it to landscape and zooms, the image fills the screen and the line turns into a rectangle. I have tried the "scale" as "zoomeven", "letterbox" and "none" and get the same result.

Anybody any ideas?

Thanks

Adrian

Hi Adrian,

I use:

portrait, letterbox
background image (png file) that covers the entire screen)
lots of images, circles, rectangles and text on top of the background image.

You may want to look at how you display background image? I don't think it's about drawing a line on top of a background image that's causing the problem. There must be something else going on.

It sounds like something has overwritten the function definitions.

You can do:

display.newCircle = someotherfunction and suddenly newCircle has different behavior.

A popular hack, er. addition is to override display.newText with a function that detects retina displays and rescales the text accordingly. So its possible something you're requiring is doing something weird to those two functions.

Thanks to all you guys for taking the time to try to help. I have to say this is driving me bananas! I know its because I am new to Corona (experienced VB developer) and I am missing something. At the risk of testing everyone's patience too far, I am enclosing the test program that goes wrong to see if anyone can spot something quickly:

--------------------MAIN.LUA-----------------------------------

display.setStatusBar (display.HiddenStatusBar)

local director = require ("director")

local mainGroup = display.newGroup()

local function main()

mainGroup:insert(director.directorView)

director:changeScene("Firstscreen")

return true
end

main()

----------------------FIRSTSCREEN.LUA-------------------------

module(..., package.seeall)

function new()
local localGroup = display.newGroup()

local _w = display.contentWidth
local _h = display.contentHeight

local backg = display.newImageRect ("blueworld.png",480,320)

backg.x = _w/ 2
backg.y = _h/ 2
localGroup:insert(backg)

local myline = display.newLine(20, 20, 215,140)
myline.width = 5
myline:setColor( 255, 102, 102, 255 )

return localGroup

end

-------------------CONFIG.LUA-----------------------------------

application =
{
content =
{
width = 320,
height = 480,
scale = "none",
-- fps = 30,
antialias = true,

imageSuffix =
{
["-x15"] = 1.5,
["-x2"] = 2, },

},
}

-----------------------BUILD.SETTINGS--------------------

settings =
{
orientation =
{
default = "landscapeRight",
supported =
{
"landscapeRight", "landscapeLeft"
},
},

iphone =
{
plist =
{
UIStatusBarHidden=true,
UIPrerenderedIcon = true
},
}

}

-----------------------------------------------------------------

As I say this gives me the correct background image but also a largish red rectangle instead of a line.

Thanks

Adrian (in a rainy UK!)

Hi Adrian, with director class, you need to insert display objects to localGroup. For example, in FIRSTSCREEN.LUA, you did not insert myline to localGroup. Try inserting it.

EDIT:
I hardly ever draw a line in my code, so I thought maybe I should check this out. So, I inserted myline to my file that uses director class, and the line appeared on top of everything without any problem:

1
2
3
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local myline = display.newLine(20, 20, 215,140)
myline.width = 5
myline:setColor( 255, 102, 102, 255 )   
localGroup:insert(myline);