Experiment to create air bubbles.

[googol]

HI.
I have a question.
This is a bug or a feature?
How can I get a stable operating node (bubble_sand) in my mod?
Thank you.

air bubbles

1.png (280.14 KiB) Viewed 270 times

2.png (265.75 KiB) Viewed 270 times

Video link:
https://youtu.be/sYw6Emfdumg

Sorry for my English

[ExeterDad]

Hah! That's pretty cool looking! Liked the video.
You may want to look into the code for the "under sea" mod that's out there. I believe the void was overcome with a fake water?

[googol]

In video i demonstrate a piece of code where i'm doing a comment of one line:
liquid_alternative_flowing = "default:water_flowing",

In full code of node:

Code: Select all

minetest.register_node("bubble_sand:bubbles", {
        description = "Bubbles",
        drawtype = "plantlike",
        tiles = {{ name = "bubble_basic_flame_animated.png",
                   animation = { type = "vertical_frames",
                                aspect_w = 16,
                                aspect_h = 16,
                                length = 0.5,
                              },
                },},
          -- New-style water source material (mostly unused)
        special_tiles = {{ name = "bubble_basic_flame_animated.png",
                           animation = { type = "vertical_frames",
                                         aspect_w = 16,
                                         aspect_h = 16,
                                         length = 0.5,
                                       },
                          backface_culling = true,
                        },},
        alpha = 255, 
        paramtype = "light",
        walkable = false, 
        pointable = false, 
        diggable = false,
        buildable_to = true, 
        is_ground_content = false,
        drop = "",
        drowning = 1, -
        liquidtype = "source",
        liquid_alternative_flowing = "default:water_flowing",
--        liquid_alternative_flowing = "bubble_sand:bubbles",
      	liquid_alternative_source = "bubble_sand:bubbles",
--      	liquid_alternative_source = "default:water_source",
        liquid_viscosity = 1, 
	liquid_renewable = false,
	liquid_range = 0,
        post_effect_color = {a = 103, r = 30, g = 60, b = 90},
        groups = {water = 3, liquid = 3, puts_out_fire = 1, cools_lava = 1},
--       freezemelt = "default:water_source",
})

After this node air bubbles stay flooded
but i lose a possibility to generate new bubbles, it's like blocks are fulling with water (in my opinion)
Who can watch my full code and help me with this situation?

[TenPlus1]

Maybe this will help, place bubblesand node underwater around 5 deep and watch :)

Code: Select all

minetest.register_node("bubble_sand:bubblesand", {
	description = "Bubble Sand",
	tiles = {"default_sand.png"},
	groups = {crumbly = 3, falling_node = 1, sand = 1},
	sounds = default.node_sound_sand_defaults(),

	on_timer = function(pos)

		local offset_x = math.random(-10, 10) / 20
		local offset_z = math.random(-10, 10) / 20
		local pos2 = {
			x = pos.x + offset_x,
			y = pos.y + 0.5,
			z = pos.z + offset_z,
		}

		minetest.add_particle({
			pos = pos2,
			velocity = {x = 0, y = 0, z = 0},
			acceleration = {x = 0, y = 1, z = 0},
			expirationtime = 2,
			collisiondetection = false,
			texture = "bubble.png",
			size = math.random(1, 2),
		})

		minetest.get_node_timer(pos):start(1)
	end,

	on_construct = function(pos)
		minetest.get_node_timer(pos):start(1)
	end,
})

[googol]

Thanks, TenPlus1
May be your way is right.

I will not be regarded as a heretic for round objects in minetest?

Easy testing showed me a display problem Particle. I do not see them under water while in the air.

[TenPlus1]

Seems minetest has a few display glitches like this, especially when using node transparency in certain cases.

[googol]

Ok i will continue experiment.
Maybe this bug need write to the bug reports?

[googol]

So
What you think about this?

Video link:
https://youtu.be/vFjiG-FbZSw

------
Discussion move to viewtopic.php?f=9&t=16587