Image Change

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#1

Why this doesn’t exist?

[lua]myImg= display.newImageRect(“pippo.png”,20,20)

myImg.image = “pluto.png”[/lua]
[import]uid: 70929 topic_id: 27403 reply_id: 327403[/import]

#2

You cannot change an image that way - you’d need to use a sprite sheet or recreate the image - sprites would be easiest in the long run most likely :slight_smile: [import]uid: 52491 topic_id: 27403 reply_id: 111324[/import]

#3

To elaborate on peach’s post your looking to do something like this:

[code]
local myImg = display.newImageRect(“pippo.png”,20,20)

–When you want to change it
display.remove(myImg)

myImg = display.newImageRect(“pluto.png”,20,20)
[/code] [import]uid: 84637 topic_id: 27403 reply_id: 111349[/import]

#4

Thanks Peach!
Hi Danny, if i do that, the body stay as it was? and the position will be reset?

I think that if you have a lot of on\off led in a table with many attributes, it would be great to change image on the fly…

Sorry for my english :smiley: [import]uid: 70929 topic_id: 27403 reply_id: 111352[/import]

#5

If you also have a physics body attached to the image you would also need to recreate that.

So for instance:

[code]
local myImg = display.newImageRect(“pippo.png”,20,20)

–When you want to change it
display.remove(myImg)
myImg = display.newImageRect(“pluto.png”,20,20)
physics.addBody(myImg, “dynamic”, {isSensor = false})

[code]

For instance :slight_smile: [import]uid: 84637 topic_id: 27403 reply_id: 111355[/import]

#6

yes, this is a solution, i only would suggest something useful… i have a little project of a drum machine with 16 img x 8 instruments so 128 images.

local kick={0,0,0,0,0,etc..}  
.  
.  
.  
.  
local snare={0,0,0,0,0,etc..}  
  
local function turnOn(objectSelected)  
 objectSelected.image="on.png"  
 objectSelected.satus=1  
 objectSelected.volume=getVolume(objectSelected)  
 .   
 .   
 .  
 .  
end  
local kick={0,0,0,0,0,etc..}  
.  
.  
.  
.  
local snare={0,0,0,0,0,etc..}  
  
local function turnOn(objectSelected)  
 newX=objectSelected.x  
 newY=objectSelected.y  
 display.remove(objectSelected)  
 objectSelected=display.newImageRect("on.png"...)  
 objectSelected.x=newX  
 objectSelected.x=newY  
 objectSelected.satus=1  
 objectSelected.volume=getVolume(objectSelected)  
 .   
 .   
 .  
 .  
end

I know that’s the only way, so i just suggested you this feature :stuck_out_tongue: [import]uid: 70929 topic_id: 27403 reply_id: 111358[/import]

#7

If you have that many images I would strongly recommend using spritesheets [import]uid: 84637 topic_id: 27403 reply_id: 111360[/import]