I have some problems trying to work with both director class and particle candy. Assuming I have a main page and some screens.lua. My folder organisation is :
mainfolder/lib_particle_candy.lua
mainfolder/main.lua (changing scene to home.lua)
mainfolder/screens/home.lua (navigation screen reaching screen1.lua)
mainfolder/screens/screen1.lua
If I want to run PC in one screen only :
- where to put ?local Particles = require("../lib_particle_candy")
in main.lua, in screen1.lua
- what localGroup:insert()
Example :
Taking your Sample_Fading code, should it be :
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | module(..., package.seeall) -- Main function - MUST return a display.newGroup() function new() local localGroup = display.newGroup() ------ Your code here ------ -- LOAD PARTICLE LIB local Particles = require("../lib_particle_candy") -- HERE ? local screenW = display.contentWidth local screenH = display.contentHeight local StatusText = display.newText( "", screenW/2, screenH-20, "Verdana-Bold", 12 ) StatusText:setTextColor( 255,255,255 ) -- DIRECTOR localGroup:insert(StatusText) -- CREATE AN EMITTER (NAME, SCREENW, SCREENH, ROTATION, ISVISIBLE, LOOP) Particles.CreateEmitter("E1", screenW*0.1, screenH*0.8, 90, true, true) -- DEFINE PARTICLE TYPE PROPERTIES local Properties = {} Properties.imagePath = "images/arrow.png" Properties.imageWidth = 32 -- PARTICLE IMAGE WIDTH (newImageRect) Properties.imageHeight = 32 -- PARTICLE IMAGE HEIGHT (newImageRect) Properties.velocityStart = 150 -- PIXELS PER SECOND Properties.autoOrientation = true -- ROTATE TO MOVEMENT DIRECTION Properties.killOutsideScreen = true -- PARENT LAYER MUST NOT BE NESTED OR ROTATED! Properties.lifeTime = 3000 -- MAX. LIFETIME OF A PARTICLE Properties.alphaStart = 0 -- PARTICLE START ALPHA Properties.fadeInSpeed = 0.5 -- PER SECOND Properties.fadeOutSpeed = -0.75 -- PER SECOND Properties.fadeOutDelay = 1500 -- WHEN TO START FADE-OUT Particles.CreateParticleType ("Test1", Properties) -- FEED EMITTERS (EMITTER NAME, PARTICLE TYPE NAME, EMISSION RATE, DURATION, DELAY) Particles.AttachParticleType("E1", "Test1", 5, 99999,0) -- DIRECTOR localGroup:insert(E1) -- NOT SURE localGroup:insert(Test1) -- NOT SURE -- TRIGGER THE EMITTERS Particles.StartEmitter("E1") ---------------------------------------------------------------- -- MAIN LOOP ---------------------------------------------------------------- local function main( event ) -- UPDATE PARTICLES Particles.Update() -- DISPLAY PARTICLE COUNT StatusText.text = "PARTICLES:"..Particles.CountParticles() end -- timer.performWithDelay( 33, main, 0 ) Runtime:addEventListener( "enterFrame", main ) ---------------------------------------------------------------- -- END OF SAMPLE CODE ---------------------------------------------------------------- ------ Home ------ local bt01 = display.newRect( 0, 10, 320, 20 ) bt01:setFillColor( 100,100,100 ) localGroup:insert(bt01) local label1 = display.newText("HOME", 0, 0, native.systemFontBold, 16) label1:setTextColor( 255,255,255) label1.x = 160 label1.y = 20 localGroup:insert(label1) local function bt01t ( event ) if event.phase == "ended" then ----- Candy clean up before changing scene ----- CleanUp() ----- Director ----- director:changeScene("samples/home","fade", "black") end end bt01:addEventListener("touch",bt01t) -- MUST return a display.newGroup() return localGroup end |
(wrong edit post)...
No.. Like this :
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | module(..., package.seeall) -- LOAD PARTICLE LIB local Particles = require("../lib_particle_candy") -- HERE ! -- Main function - MUST return a display.newGroup() function new() local localGroup = display.newGroup() ------ Your code here ----- local screenW = display.contentWidth local screenH = display.contentHeight local StatusText = display.newText( "", screenW/2, screenH-20, "Verdana-Bold", 12 ) StatusText:setTextColor( 255,255,255 ) -- DIRECTOR localGroup:insert(StatusText) -- CREATE AN EMITTER (NAME, SCREENW, SCREENH, ROTATION, ISVISIBLE, LOOP) Particles.CreateEmitter("E1", screenW*0.1, screenH*0.8, 90, true, true) -- DEFINE PARTICLE TYPE PROPERTIES local Properties = {} Properties.imagePath = "images/arrow.png" Properties.imageWidth = 32 -- PARTICLE IMAGE WIDTH (newImageRect) Properties.imageHeight = 32 -- PARTICLE IMAGE HEIGHT (newImageRect) Properties.velocityStart = 150 -- PIXELS PER SECOND Properties.autoOrientation = true -- ROTATE TO MOVEMENT DIRECTION Properties.killOutsideScreen = true -- PARENT LAYER MUST NOT BE NESTED OR ROTATED! Properties.lifeTime = 3000 -- MAX. LIFETIME OF A PARTICLE Properties.alphaStart = 0 -- PARTICLE START ALPHA Properties.fadeInSpeed = 0.5 -- PER SECOND Properties.fadeOutSpeed = -0.75 -- PER SECOND Properties.fadeOutDelay = 1500 -- WHEN TO START FADE-OUT Particles.CreateParticleType ("Test1", Properties) -- FEED EMITTERS (EMITTER NAME, PARTICLE TYPE NAME, EMISSION RATE, DURATION, DELAY) Particles.AttachParticleType("E1", "Test1", 5, 99999,0) -- DIRECTOR localGroup:insert(E1) -- NOT SURE localGroup:insert(Test1) -- NOT SURE -- TRIGGER THE EMITTERS Particles.StartEmitter("E1") ---------------------------------------------------------------- -- MAIN LOOP ---------------------------------------------------------------- local function main( event ) -- UPDATE PARTICLES Particles.Update() -- DISPLAY PARTICLE COUNT StatusText.text = "PARTICLES:"..Particles.CountParticles() end -- timer.performWithDelay( 33, main, 0 ) Runtime:addEventListener( "enterFrame", main ) ---------------------------------------------------------------- -- END OF SAMPLE CODE ---------------------------------------------------------------- ------ Home ------ local bt01 = display.newRect( 0, 10, 320, 20 ) bt01:setFillColor( 100,100,100 ) localGroup:insert(bt01) local label1 = display.newText("HOME", 0, 0, native.systemFontBold, 16) label1:setTextColor( 255,255,255) label1.x = 160 label1.y = 20 localGroup:insert(label1) local function bt01t ( event ) if event.phase == "ended" then ----- Candy clean up before changing scene ----- CleanUp() ----- Director ----- director:changeScene("samples/home","fade", "black") end end bt01:addEventListener("touch",bt01t) -- MUST return a display.newGroup() return localGroup end |
Thx for info.
But I must do something else wrong, I can't make it work. Anyway I'll try to ;)
The terminal tells me :
-------
Runtime error
...rd/programmation/Corona/sandboxes/samples/candy1.lua:19: attempt to index global 'Particles' (a nil value)
stack traceback:
-------
By the way, looking in demo codes I changed
localGroup:insert ("E1")
to
1 2 | local Emitter = Particles.GetEmitter("E1") localGroup:insert (Emitter) |
ok. It sounds like "lib_particle_candy.lua" isn't in the right place
try this .
local Particles = require("lib_particle_candy")
When I put local Particles = require("../lib_particle_candy") in screen1.lua I had "unable to find" message errors.
I tried local Particles = require("lib_particle_candy") with no more success.
Teh I tried to put local Particles = require("lib_particle_candy" in my main.lua, and error message was different :
Runtime error
...rd/programmation/Corona/sandboxes/samples/candy1.lua:19: attempt to index global 'Particles' (a nil value)
stack traceback:
Is this message still a location error ?
All the mess was coming from subdirectory organisation : I put all my lua on main folder and it worked !!
Not sure it's the right place to ask this :
Working on Events with :
1 2 3 4 | -- DECLARE FUNCTION TO SEND EVENT TO WHEN PARTICLE GET DESTROYED -- NOTE: YOU CAN REMOVE THIS LISTENER AGAIN BY USING -- SetEmitterListener("name", nil) Particles.SetEmitterListener("E1", MyParticleDestroyListener) |
Antheor, did you require the library at the root of your code (right on top of your main.lua)?
local Particles = require("lib_particle_candy")
You can test if "Particles" is available within any module using print(Particles) there, for example. If it says "nil", the library is not accessible from that location of your code. It's important where you load the libary into your code. If you do this in the root of your project, it should be accessible throughout your entire code.
I changed the position of the "require" line and it indeed worked fine, but I tried to change it back and it worked then ...
Anyway, this problem is erratic and not interesting, mainly due to my poor coding knowledge.
I have but noticed a another behaviour, this time noticeable. I prepare a new post for it.
views:2212 update：2011/10/14 9:11:21send message and call to a person
Forum: Report Spam + PM
[INSTALL_PARSE_FAILED_NO_CERTIFICATES]
[SOLVED] Director ERROR: Failed to execute new( params ) function on 'screen1'
Too many (200) local variables
Corona SVG Level Builder released. Drag and drop physics level editor with Inkscape and SVG.
Small bug in Collectible Items example
Pivot Joints and apparent elasticity
Can't make removeSelf() delayed
Jet Rats HD
help with using libraries (mac)
Texture Memory Question
Changing App Label Name in Android
Android Market - Error uploading .apk
How to add Ads to my app?
Bundle IDs with dots are being replaced with - and being rejected by the uploader
network.request not working on device but fine in simulator
How to test app in Kindle Fire?