Rube and Gideros

Tom2012

Hello everyone

Just found the intriguing R.U.B.E and I think it will be good for my game.

I noticed it's listed on the 3rd party apps page for Gideros, but can't seem to find any info on how to use the two together.

Has anyone delved into this? Can you share any resources please?

I've checked this out:

http://www.giderosmobile.com/forum/discussion/144/proof-of-concept-conversion-of-3rd-party-box2d-editor-json-output-to-lua#Item_6

But I'm really interested in getting images to be read into Gideros too.

Thanks!

Tom

1dot44mb

Hi, before writing TiledAsAWorldEditor, i checked out RUBE too. First of all it is commercial, trial version does not let you save.

It is a Box2D editor, i do not know any ways to tie the bodies to Gideros sprites, or even change their attributes runtime. But maybe there is a way but as i said 'i don't know'. When the animations come into place, things get more complicated.

Other than that it is great, and as the name suggests, 'really useful' box2d editor.

Tom2012

Been researching into it and I see how it works now. I have to use json to convert the exported file to a lua table, then write me own code to covert to my game.

A bit tricky for me but I like the Rube editor. I'll also have a look at the software you mentioned - thanks!

Tom2012

Here's a really rough go at getting image layouts and box2D bodies created in RUBE into Gideros...

Might be a starting point for anyone else having a go with this tool...

The attached image shows the images in RUBE and in the Gideros player are the same layout.

-- Set up box2d   require "box2d"   local imageLayer = Sprite.new() stage:addChild(imageLayer) stage.imageLayer = imageLayer   -- set up the physics on a new layer   local physicsLayer = Sprite.new() -- create new sprite instance physicsLayer.world = b2.World.new(0, 10, true) -- add the physics on this layer stage:addChild(physicsLayer); -- add sprite to this scene stage.physicsLayer = physicsLayer; -- store in our table   local debugDraw = b2.DebugDraw.new() physicsLayer.world:setDebugDraw(debugDraw) physicsLayer:addChild(debugDraw)   stage:setBackgroundColor(0,0,0)     -- Bring in atlas local Atlas2 = TexturePack.new("Atlases/Atlas 2.txt", "Atlases/Atlas 2.png", true)   -- set scale -- 1 square on rube = x pixels local worldScale = 100   -- Open json file   file = io.open("001.json","r") text = file:read("*all") io.close(file) out = json.decode(text)   -- get image   for index,theImage in pairs(out.image) do   local data = explode("gfx/", theImage.file)   local image = Bitmap.new(Atlas2:getTextureRegion(data[2]))   -- Set the scale   -- get the size local imageHeight = image:getHeight() --print("imageHeight", imageHeight)   -- get scale local scale = 100 / imageHeight --print("scale", scale)   local xScale = (scale*theImage.scale)*1.030 local yScale = (scale*theImage.scale)*1.030       image:setScale(xScale,yScale)     -- get rotation image:setAnchorPoint(.5,.5) local angle = theImage.angle image:setRotation(math.deg(angle)*-1)     -- set position   local x = theImage.center.x * worldScale local y = (theImage.center.y * worldScale)*-1       image:setPosition(x,y)     -- add to scene imageLayer:addChild(image)   end         -- Try to get the physics bodies   for index,theBody in pairs(out.body) do   -- if this is a box or a poly   if(theBody.fixture[1].polygon) then   --create box2d physical object local body = physicsLayer.world:createBody{type = b2.STATIC_BODY}     local poly = b2.PolygonShape.new()   local coords = {} local num = #theBody.fixture[1].polygon.vertices.x       for i=1,#theBody.fixture[1].polygon.vertices.x do   local x = theBody.fixture[1].polygon.vertices.x[num] * 100 table.insert(coords,x)   local y = theBody.fixture[1].polygon.vertices.y[num] * 100 *-1 table.insert(coords,y)   num = num - 1   end       poly:set(unpack(coords))       local fixture = body:createFixture{shape = poly, density = 1.0, friction = 0, restitution = 0}   -- Position   local x = (theBody.position.x * worldScale) local y = ((theBody.position.y * worldScale)*-1)   body:setPosition(x,y)   local filterData = {categoryBits = 2, maskBits = 5} fixture:setFilterData(filterData)   -- Angle   local angle = theBody.angle     end   end

Tom2012

Ah you'll also need this explode function...

function explode(div,str) -- credit: <a href="http://richard.warburton.it" rel="nofollow">http://richard.warburton.it</a> if (div=='') then return false end local pos,arr = 0,{} -- for each divider found for st,sp in function() return string.find(str,div,pos,true) end do table.insert(arr,string.sub(str,pos,st-1)) -- Attach chars left of current divider pos = sp + 1 -- Jump past current divider end table.insert(arr,string.sub(str,pos)) -- Attach chars right of last divider return arr end

BigWinston

Hi Tom,

Did you get any further with this?

I'm about to start using R.U.B.E too.

Thanks.

BW

Tom2012

Sorry for the very late reply BigWinston!

For yourself or anyone interested - I wrote a php program that takes .json files and reads them into lua tables for use in Gideros.

http://firecroc.com/json-to-lua/

The actual php program is below

Tom2012

Here is the class that I use to convert this output into the game

Tom2012

Here's how I work.

1) Put the graphics together in rube
2) Export the .json file
3) Click on browse in my tool and choose the .json file
4) Click 'Build'
5) Copy the output
6) Paste it into a new file in my game called say "level 9 data.lua"
7) Then bring that into each level with

-------------------------------------------------------------- -- Rube Level Data --------------------------------------------------------------   self.levelData = "Level Data/Level 9 Data.lua"   local rube = Rube.new(self,self.levelData)

Tom2012

This might sound like a lot of effort but it allows me to create some pretty complex levels like the ones attached.

Have a look at the online 'generator' I made, and the php script, and the rube class. I'm really basic when it comes to programming so I'm sure you'll be able to customize it to your needs.

Let me know if I can help.

Tom2012

I'll also include one of my level files that shows how it fits together. This is the 'scene' that will be loaded.

Tom2012

And here's a rube file for that level...

talis

@Tom2012 thanks for sharing. You saved me from lots of effort.

HubertRonald

Wow @Tom2012 it's really amazing, thanks for sharing.

I I've been thinking about whether or not I use this tool, but I'm sure that this resource will allow me to take things more clear.

Thanks again. >-