Gideros Game Template

ar2rsawseen · February 2013

hmm, well right no you could overwrite it.

Like nilling or emptying or writing default values

dataSaver.saveValue("|D|somevalue", nil)

And writing empty tables for files

dataSaver.save("|D|mydata", {})

But I guess that would be one of the functionalities, I could add in time (to delete files)

xGuilt · May 2013

Just a question, i've set my first pack to only have 1 level (Supposed to be an introduction only with some cut scene) and after that, the player could proceed to the next pack but after finishing the first pack with only 1 level, the second pack doesn't unlock. How can i set when a pack unlocks or a certain pack unlocking after a certain level is finished. Like the third pack after clearing level 6 of the 2nd pack even if that pack has 10 or more levels?

ar2rsawseen · May 2013

Hello @xGuilt

If you check the GameTemplate repository: https://github.com/ar2rsawseen/GameTemplate

You'll see there is a class GameManager, which is just a simple example of how you could manage your games, unlock levels, save scores etc.

https://github.com/ar2rsawseen/GameTemplate/blob/master/classes/GameManager.lua

Usually you would create an instance of GameManager providing current pack and level, and call :unlockLevel(pack, level)
There is also a method :getNextLevel(pack, level, unlock) which gives you pack and level of next level and bool to unlock it or not, so you could jump to next level immediately.

xGuilt · May 2013

Oh i see, hm the game template i got here doesn't seem to have the GameManager.lua weird.

Let me see if i got this right. In the end of a level or game, i'm supposed to run the functions:

GameManager:setScore("IntroPack", 1)
GameManager:getNextLevel("2ndPack", 1, True)

to save the score for the current pack then move on to the next level or pack. Am i right?

ar2rsawseen · May 2013

@xGuilt it should be more like:

--first you load your packs info somewhere in main lua probably
--load packs and level amounts from packs.json
packs = dataSaver.load("packs")

then in your level scene:

--then I usually store current pack and level somewhere I can access it globally
--either global variables or global settings class
curPack = 1
curLevel = 1
 
--create instance of game manager providing pack info and player identification
local gm = GameManager.new(packs, playerid)
 
--then on the level complete save score
gm:getScore(curPack, curLevel)
 
--and get next pack and level and unlock it
--it will switch to next pack if this was the last level in the pack automatically
curPack, curLevel = gm:getNextLevel(curPack, curLevel, true)
 
if curPack then
    --if current pack is not nil it means there are more levels to play
    --then you can change the scene to next level
    --and curPack and curLevel would store the information of next pack and level
end

Something like that

xGuilt · May 2013

ah, i see. So in every level i will store the current pack and level in a variable like what you did with the curPack and curLevel what i don't quite get is the

"curPack, curLevel = gm:getNextLevel(curPack, curLevel, true)
it would be like 1,1 = gm:getNextLevel(1,1,true) given that the current pack and level is 1. Or does the getNextLevel function moves from the current pack and level and not chosen specifically?

by the way, would you happen to have a simple sample for the application of this?

ar2rsawseen · May 2013

For example you have pack 1 which has two levels and then pack 2 with three levels so the nextLevel method would work like

curPack, curLevel = 1, 1
curPack, curLevel = gm:getNextLevel(curPack, curLevel, true) --return 1, 2
curPack, curLevel = gm:getNextLevel(curPack, curLevel, true) --return 2, 1
curPack, curLevel = gm:getNextLevel(curPack, curLevel, true) --return 2, 2
curPack, curLevel = gm:getNextLevel(curPack, curLevel, true) --return 2, 3
curPack, curLevel = gm:getNextLevel(curPack, curLevel, true) --return nil, nil

unfortunately I had no time to create an example app, but most probably I will someday, or maybe we can create something together with community

xGuilt · May 2013

ok, i've read the function in the gamemanager.lua. So it actually gets the current pack and level and adds 1 to the current level and if there aren't any more levels for that pack then it adds 1 to the pack and level goes back to 1.

It became much much more simple now. Thank you so much

xGuilt · June 2013

Hi, it's been a long time, been busy with school -,-, I was wondering about this block of code in the level_select.lua

			--add event listener
			box:addEventListener("click", function(e)
				--get target of event
				local target = e:getTarget()
				--save selected level
				sets:set("curLevel", target.cnt)
				--set to show description
				sets:set("showDescription", true)
				--stop propagation
				e:stopPropagation()
				--go to selected level
				sceneManager:changeScene("level", 1, conf.transition, conf.easing)

This code is for giving the unlocked boxes a function that when they're clicked, they go to the level but at the end of the line it only changes it's scene to "level.lua" Does that mean i have to create all the levels in only one lua? Since what i've done is create different lua for levels and misc level related stuff like cutscenes.

ar2rsawseen · June 2013

@xGuilt yes the idea was that in the level.lua you determine what to load based on the level and pack number, but you can also determine it here as in :

--add event listener
box:addEventListener("click", function(e)
	--get target of event
	local target = e:getTarget()
	--save selected level
	sets:set("curLevel", target.cnt)
	--set to show description
	sets:set("showDescription", true)
	--stop propagation
	e:stopPropagation()
	--go to selected level
	if target.cnt == 1 then
		sceneManager:changeScene("level1", 1, conf.transition, conf.easing)
	elseif target.cnt == 2 then
		sceneManager:changeScene("level2", 1, conf.transition, conf.easing)
	end --etc
)

xGuilt · June 2013

Ahh, so i have to use conditions to check what level would play.

"target.cnt" would be the level number or the number assigned to the box right?
does that mean i have to make conditions like

if curPack == 2 and target.cnt == 1 then
sceneManager:changeScene("Pack2Level1", 1, conf.transition, conf.easing)
end

to check levels for other packs. Am i right? or is there a shorter way to do this?

ar2rsawseen · June 2013

@xGuilt you are right, but there is a shorter way
like creating table of levels:

local t {}
t[1] = {}
t[1][1] = "Pack1Level1"
t[1][2] = "Pack1Level2"
 
--and then using it like
 
sceneManager:changeScene(t[curPack][target.cnt], 1, conf.transition, conf.easing)

or if you have a standard naming convention like "Pack1Level1" etc, you can also do simply:

sceneManager:changeScene("Pack"..curPack.."Level"..target.cnt, 1, conf.transition, conf.easing)

xGuilt · June 2013

Using tables would make it more cleaner looking, i'd go with that. Thanks

Hm so if i have 4 packs having 10 levels each then that means i'm going to have 40 conditions to get all the levels right?

ar2rsawseen · June 2013

@xGuilt yes, which also means you will have 4x10 lua files, thats why I thought of using single level.lua to handle that all and store only some json configurations to handle loading different levels which would be loaded dynamically based on curPack and curLevel

xGuilt · June 2013

ohhhh, haha i'm unfamiliar with how that works. Does that mean all those 40 levels would be stored inside one level.lua file?

Would it go like calling a specific function in the level.lua indicating the level?

ar2rsawseen · June 2013

well what we have for example in Mashballs
is that there are level definitions, stored in level folder
like level1-1.json, level1-2.json etc
level.lua then based on curPack and curLevel loads the level definition, interprets it and displays the level to user.

That way it is flexible enough and we can actually have a level editor outside of Gideros, which exports this json level definitions files

xGuilt · June 2013

ah. So the pack_select and the level_select will actually pass on the curPack and the target.cnt to the level.lua which loads the json file. Now it sounds much more simplier

but i have no idea how to use json to define levels. I know svg level definition but i know it works differently since it's based of from an image. Do you have a small sample of how it works?

ar2rsawseen · June 2013

@xGuilt yes everything you define in Settings.lua class:
https://github.com/ar2rsawseen/GameTemplate/blob/master/classes/Settings.lua
is global and can be accessed from anywhere like:

locla curPack = sets:get("curPack")

But about levels, well it's completely based on your game specific,
for example in Mashballs
http://jenots.com/mashballs
difference between levels is basically what objects appear and where they appear.

We have a custom level editor to set those things, but in simplified version it looks like this:
{"objects":[{"type":"touch","x":250,"y":400,"rotation":0,"size1":30,"size2":0},{"type":"touch","x":525,"y":400,"rotation":0,"size1":30,"size2":0},{"type":"point","x":250,"y":300,"rotation":0,"size1":20,"size2":0},{"type":"point","x":525,"y":300,"rotation":0,"size1":20,"size2":0}]}

Then inside level.lua we read the level definition into lua table, iterate through objects and look,

if t.objects.type == "touch" then
    --create touch object at x and y coordinates with size1
elseif t.objects.type == "point" then
    --create point object at x and y coordinates with size1
end --etc

We use dataSaver
http://giderosmobile.com/tools/datasaver
which allows easily to save and load lua tables and I think it should even be included with the Game Template

xGuilt · June 2013

oh, now i completely get the who curPack, curLevel and the sets:get/set thanks @ar2rsawseen

i've searched on google about json level editors and tiled came up. Apparently it can save tilemaps in json. I haven't tried it out yet, but i've seen some posts here in the forum that tiled can be used along with gideros right?

oh and again, thanks for the help

ar2rsawseen · June 2013

I haven't used it personally, but most probably yes it can work with Gideros

xGuilt · June 2013

it's a bit out of our topic but does the ace slider that comes with the game template in it's pack_select.lua normally has a 3~5 second delay before the creates or back button gets their functions? because after moving from another scene to the pack select, it takes a few seconds before they work, even clicking them won't do anything.

ar2rsawseen · June 2013

@xGuilt no usually it does not.
Right now have no idea what could cause that

xGuilt · July 2013

oh ok ok. Thanks for the helps

bali001 · May 2014

I couldn't find an appropriate topic for 'View.lua' class and I didn't want to open a new one...

Gridview:addChild function:

function GridView:addChild(item)
  local width, height = getDimensions(item)
 
  if self.conf.animate then
    --default properties
    local animate = {}
    animate.alpha = 1
    animate.scaleX = 1
    animate.scaleY = 1
    animate.rotation = 0
    animate.y = self.startY
    animate.x = self.startX
 
    if(self.startX + width > self.width) then
      self.width = self.startX + width
    end
 
    if(self.startY + height > self.height) then
      self.height = self.startY + height
    end
 
    --copy original properties
    item.original = getProperties(item)
 
    --use spacer
    self.spacer:setPosition(self.width + width, self.height  + height)
 
    --animate
    item.tween = GTween.new(item, self.conf.duration, animate, {ease = self.conf.easing})
  else
    item:setPosition(self.startX, self.startY)
  end
  ....

But when self.conf.animate is false, width and height of the gridview are not updated at all, getWidth() and getHeight() returns 0 (at least in my case).

So I have to changed it (and works):

function GridView:addChild(item)
  local width, height = getDimensions(item)
 
  -- moved outside from 'if'
  if(self.startX + width > self.width) then
    self.width = self.startX + width
  end
 
  if(self.startY + height > self.height) then
    self.height = self.startY + height
  end
 
  if self.conf.animate then
    --default properties
    local animate = {}
    animate.alpha = 1
    animate.scaleX = 1
    animate.scaleY = 1
    animate.rotation = 0
    animate.y = self.startY
    animate.x = self.startX
 
    --copy original properties
    item.original = getProperties(item)
 
    --use spacer
    self.spacer:setPosition(self.width + width, self.height  + height)
 
    --animate
    item.tween = GTween.new(item, self.conf.duration, animate, {ease = self.conf.easing})
  else
    item:setPosition(self.startX, self.startY)
  end
  ....

ar2rsawseen · May 2014

@bali001 nice catch
thank you

bali001 · May 2014

in View:removeChild():

function View:removeChild(item)
  --find and remove button
  local children = self:getNumChildren()
  for i = 1, children do
    local sprite = self:getChildAt(i)
    if(sprite == item)then
      self:__removeChild(item)
    end
  end
end

missing a break after self:__removeChild(item)
children will be an invalid index (out of bounds) after removing the item

ar2rsawseen · May 2014

Oh my god, did I wrote that? The things you see at your code after 2 years of writing

It could have been handled much more elegantly:

function View:removeChild(item)
  item:removeFromParent()
end

bali001 · May 2014

@ar2rsawseen: thx

And there is no problem with that code at all, it's working!

I need a scrollable view in my game which displays images in a grid on slides, so I "merged" AceSlide and GridView into "one" (with dynamic slide load) from your Game Template.

By the way, expected some kind of views in next version of Gideros?

somezombiegm · August 2014

@ar2rsawseen Hey, I started making my game by modifying your template. I've download it again to check how some things were originally, but there's no gameplay. Right after selecting the first level of the first pack, a blank screen appears without anything else.

ar2rsawseen · August 2014

@somezombiegm yes it was just template, without any actual game. That was the whole point

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