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    Need help to make a 2d pixel sandbox style game

    vitalitymobilevitalitymobile Member
    edited March 2023 in General questions
    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!
    Coming soon
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    Comments

    • MoKaLuxMoKaLux Member
      edited March 2023
      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.

      Likes: vitalitymobile, pie

      my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories
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    • MoKaLuxMoKaLux Member
      edited March 2023
      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!)
      my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories
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    • piepie Member
      @MoKaLux Cool, I didn't know I was featured there! :smiley:
      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 :disappointed:

      Likes: MoKaLux

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    • MoKaLuxMoKaLux Member
      edited March 2023
      pie said:

      @MoKaLux Cool, I didn't know I was featured there! :smiley:
      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 :disappointed:

      So you are Hubert Ronald? You are a Gideros Legend pie o:)

      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 ;)
      my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories
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    • piepie Member
      edited March 2023
      @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 :)

      Likes: MoKaLux

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    • MoKaLuxMoKaLux Member
      Ah I see :o yes indeed you got featured, that still makes you a Gideros Legend o:)
      my growING GIDEROS github repositories: https://github.com/mokalux?tab=repositories
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    • piepie Member
      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 :smile:

      Likes: MoKaLux

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    • vitalitymobilevitalitymobile Member
      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)

      Likes: MoKaLux

      Coming soon
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