Need help to make a 2d pixel sandbox style game

vitalitymobile

I am making a game like this: (Focus on android and iOS platforms)

https://github.com/angeluriot/Sandbox
https://play.google.com/store/apps/details?id=com.wonder.psychicdust.an&gl=us
https://github.com/The-Powder-Toy/The-Powder-Toy

What is the best way to make the elements (materials)?

1. Pixel class in Gideros
2. Particle system (Like the demo from Gideros)
3. Or find some C++ engine and make the Gideros plugin

Thank you so much!

MoKaLux

LiquidFun particles? https://wiki.gideros.rocks/index.php/B2.ParticleSystem

With its flags system you can have interesting behavior:
flags=b2.ParticleSystem.FLAG_COLOR_MIXING | b2.ParticleSystem.FLAG_POWDER,

I used it a long time ago and was really fun but I didn't push it very far.

MoKaLux

there is also a GH demo of it: https://github.com/HubertRonald/FoulJob
Don't be fooled by the YT video (this is not the GH game), he uses LiquidFun particles but you will have to replace bit.band and bit.bor because bit got deprecated in Gideros 2022.1 (you can just comment the faulty lines but you won't see the tiles!)

pie

@MoKaLux Cool, I didn't know I was featured there!
What do you mean with replace "bit.band and bit.bor"? Is there an alternative?
If we can no longer use the bit library we've lost the ability to flip tiles on Tiled maps

MoKaLux

pie said:

@MoKaLux Cool, I didn't know I was featured there!
What do you mean with replace "bit.band and bit.bor"? Is there an alternative?
If we can no longer use the bit library we've lost the ability to flip tiles on Tiled maps

So you are Hubert Ronald? You are a Gideros Legend pie

For the bit thing, to flip tiles in Tiled I think there is another solution (tested with images not sure for tiles):

-- Bits on the far end of the 32-bit global tile ID are used for tile flags (flip, rotate) local FLIPPED_HORIZONTALLY_FLAG = 0x80000000; local FLIPPED_VERTICALLY_FLAG = 0x40000000; local FLIPPED_DIAGONALLY_FLAG = 0x20000000; ... -- read flipping flags local flipHor = xobject.gid & FLIPPED_HORIZONTALLY_FLAG local flipVer = xobject.gid & FLIPPED_VERTICALLY_FLAG local flipDia = xobject.gid & FLIPPED_DIAGONALLY_FLAG -- clear the flags from gid so other information is healthy xobject.gid = xobject.gid & ~ ( FLIPPED_HORIZONTALLY_FLAG | FLIPPED_VERTICALLY_FLAG | FLIPPED_DIAGONALLY_FLAG ) local tex = Texture.new(path..tilesetimages[xobject.gid].path, false) local bitmap = Bitmap.new(tex) bitmap:setAnchorPoint(0, 1) -- because I always forget to modify Tiled objects alignment local scalex, scaley = xobject.width / tex:getWidth(), xobject.height / tex:getHeight() -- supports Tiled image scaling -- convert flags to gideros style if(flipHor ~= 0) then scalex = -scalex xobject.x -= tex:getWidth() * scalex end if(flipVer ~= 0) then scaley = -scaley xobject.y += tex:getHeight() * scaley end if(flipDia ~= 0) then -- not tested! scalex, scaley = -scalex, -scaley xobject.x -= tex:getWidth() * scalex xobject.y += tex:getHeight() * scaley end bitmap:setScale(scalex, scaley) bitmap:setPosition(xobject.x, xobject.y) bitmap:setRotation(xobject.rotation) -- image rotated in Tiled? ...

Hope this helps

pie

@MoKaLux no, no I am just a normal pie, @HubertRonald the legend is himself. I somehow managed only to put together the support for tiled flipped tiles in gideros tilemap class (adapting someone else code) and I am just credited on the page for that reason

MoKaLux

Ah I see yes indeed you got featured, that still makes you a Gideros Legend

pie

MoKaLux said:

Hope this helps

Thank you it helped a lot: the bit library was deprecated because bitwise operators were embedded, therefore THERE IS an alternative.
Updated tilemap with tileflip support https://github.com/piretro/Gideros-Tiled-Tilemap-Flip-Support and wiki bit lib page with relevant information

vitalitymobile

I found this link is a very fun and cool way to create a sandbox game. Hope you enjoy it
https://sandpond.cool/

(Do not mean it can be done in Gideros)