How to access an image of a sprite

Solar2D General Questions/Discussion
#1

Hi guys!
I am a newbie.
I’ve got an sprite (elementos.png) and the elementos.lua file generated by Zwoptex.

--  
--elementos.lua file  
--  
function getSpriteSheetData()  
  
 local sheet = {  
 frames = {  
  
 {  
 name = "barba.png",  
 spriteColorRect = { x = 0, y = 5, width = 40, height = 32 },   
 textureRect = { x = 2, y = 2, width = 40, height = 32 },   
 spriteSourceSize = { width = 40, height = 40 },   
 spriteTrimmed = true,  
 textureRotated = false  
 },  
  
 {  
 name = "boca.png",  
 spriteColorRect = { x = 3, y = 17, width = 34, height = 10 },   
 textureRect = { x = 38, y = 78, width = 34, height = 10 },   
 spriteSourceSize = { width = 40, height = 40 },   
 spriteTrimmed = true,  
 textureRotated = false  
 },  
  
-- an so on..  
  
 }  
 }  
  
 return sheet  
end  
--  
--main.lua  
--  
local datos=require("elementos")  
local elementos = sprite.newSpriteSheetFromData( "elementos.png", datos.getSpriteSheetData() )

How can I access, for example, to the first image of the sprite?

Thanks in advance!
[import]uid: 44013 topic_id: 8269 reply_id: 308269[/import]

#2

This isn’t directly about sprites but it does demonstrate how to use them:
http://developer.anscamobile.com/forum/2011/01/29/object-culling-render-process-when-not-content-area#comment-26394

Note the line in the code tile.currentFrame [import]uid: 12108 topic_id: 8269 reply_id: 29486[/import]

#3

Thank you very much, jhocking!!
You’ve solved my problem! [import]uid: 44013 topic_id: 8269 reply_id: 29492[/import]

#4

Mmmmm…
I want to display 2 images from the sprite but my code only display the last referenced. Could you tell me what am I doing wrong?

--  
--main.lua  
--  
require "sprite"  
local datos=require("elementos")  
  
local ancho,alto=display.contentWidth,display.contentHeight  
local fondo\_sprite=display.newRect(0,0,ancho,200)  
fondo\_sprite:setFillColor(255,255,255,120)  
  
local thumbs=display.newGroup()  
local elementos = sprite.newSpriteSheetFromData( "elementos.png", datos.getSpriteSheetData() )  
local conxunto = sprite.newSpriteSet(elementos,1,elementos.frameCount)  
local instancia = sprite.newSprite(conxunto)  
  
local posX=90  
for i=1,2 do  
 instancia.currentFrame = i  
 instancia.x=90  
 instancia.y=70  
 thumbs:insert(instancia)  
 posX=posX+60  
end

[import]uid: 44013 topic_id: 8269 reply_id: 29497[/import]

#5

Ok, I know…

--  
--main.lua  
--  
require "sprite"  
local datos=require("elementos")  
  
local ancho,alto=display.contentWidth,display.contentHeight  
local fondo\_sprite=display.newRect(0,0,ancho,200)  
fondo\_sprite:setFillColor(255,255,255,120)  
  
local thumbs=display.newGroup()  
local elementos = sprite.newSpriteSheetFromData( "elementos.png", datos.getSpriteSheetData() )  
local conxunto = sprite.newSpriteSet(elementos,1,elementos.frameCount)  
--local instancia = sprite.newSprite(conxunto)  
  
local posX=90  
for i=1,2 do  
local instancia = sprite.newSprite(conxunto)  
 instancia.currentFrame = i  
 instancia.x=posX  
 instancia.y=70  
 thumbs:insert(instancia)  
 posX=posX+60  
end

Sorry!
And thank you again! [import]uid: 44013 topic_id: 8269 reply_id: 29499[/import]