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Convert moss to wallmounted mode

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I couldn't use leaf decay to make moss disappear when a trunk is dug,
because it breaks leaf decay on that tree's leaves: the leafdecay
function is not a true "register"- type function that can be run more
than once on a given trunk node, it's an all-or-nothing override and
only the last call for any given trunk actually sticks.

Since moss is... was facedir, attached_node didn't work right either, as
it doesn't have a mode to look for a vertical surface behind the
attached object (like how it works with wallmounted items), so this
converts moss to true wallmounted and uses attached_node like I
originally wanted.

To avoid losing the effect where moss can be rotated randomly when
generated, I registered 4 nodes for each moss type, with
increasingly-rotated textures.
This commit is contained in:
Vanessa Dannenberg
2021-06-20 23:18:32 -04:00
parent 7b4f54ead0
commit f01e4bb55f
2 changed files with 105 additions and 62 deletions
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50
trunks/generating.lua
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@ -356,11 +356,12 @@ if Moss_on_ground == true then
abstract_trunks.grow_moss_on_ground = function(pos)
local on_ground = {x=pos.x, y=pos.y+1, z=pos.z}
local moss_type = math.random(1,21)
local rot = math.random(0,3)
if moss_type == 1 then
minetest.swap_node(on_ground, {name="trunks:moss_fungus", param2=math.random(0,3)})
minetest.swap_node(on_ground, {name="trunks:moss_with_fungus_"..rot, param2=1})
else
minetest.swap_node(on_ground, {name="trunks:moss", param2=math.random(0,3)})
minetest.swap_node(on_ground, {name="trunks:moss_plain_"..rot, param2=1})
end
end
@ -406,44 +407,49 @@ abstract_trunks.grow_moss_on_trunk = function(pos)
local node_under = minetest.get_node(undrneath)
--if minetest.get_item_group(node_under.name, "tree") < 1 then
local moss_type = math.random(1,41)
if minetest.registered_nodes[node_here.name].buildable_to then -- instead of check_air = true,
if minetest.registered_nodes[node_here.name].buildable_to then
local moss_type = math.random(1,41)
local rot = math.random(0,3)
if moss_type == 1 then
minetest.swap_node(on_ground, {name="trunks:moss_fungus", param2=math.random(0,3) --[[1]]})
minetest.swap_node(on_ground, {name="trunks:moss_with_fungus_"..rot, param2=1})
elseif moss_type < 22 then
minetest.swap_node(on_ground, {name="trunks:moss", param2=math.random(0,3) --[[1]]})
minetest.swap_node(on_ground, {name="trunks:moss_plain_"..rot, param2=1})
end
end
local moss_type = math.random(1,31) -- cliche of more moss at north
if minetest.registered_nodes[node_north.name].buildable_to then -- instead of check_air = true,
if minetest.registered_nodes[node_north.name].buildable_to then
local moss_type = math.random(1,31) -- cliche of more moss at north
local rot = math.random(0,3)
if moss_type == 1 then
minetest.swap_node(at_side_n, {name="trunks:moss_fungus", param2=math.random(4,7)}) -- 5,4,6,7
minetest.swap_node(at_side_n, {name="trunks:moss_with_fungus_"..rot, param2=5})
elseif moss_type < 22 then
minetest.swap_node(at_side_n, {name="trunks:moss", param2=math.random(4,7)})
minetest.swap_node(at_side_n, {name="trunks:moss_plain_"..rot, param2=5})
end
end
local moss_type = math.random(1,41)
if minetest.registered_nodes[node_east.name].buildable_to then -- instead of check_air = true,
if minetest.registered_nodes[node_east.name].buildable_to then
local moss_type = math.random(1,41)
local rot = math.random(0,3)
if moss_type == 1 then
minetest.swap_node(at_side_e, {name="trunks:moss_fungus", param2=math.random(12,15)})
minetest.swap_node(at_side_e, {name="trunks:moss_with_fungus_"..rot, param2=3})
elseif moss_type < 22 then
minetest.swap_node(at_side_e, {name="trunks:moss", param2=math.random(12,15)})
minetest.swap_node(at_side_e, {name="trunks:moss_plain_"..rot, param2=3})
end
end
local moss_type = math.random(1,41)
if minetest.registered_nodes[node_south.name].buildable_to then -- instead of check_air = true,
if minetest.registered_nodes[node_south.name].buildable_to then
local moss_type = math.random(1,41)
local rot = math.random(0,3)
if moss_type == 1 then
minetest.swap_node(at_side_s, {name="trunks:moss_fungus", param2=math.random(8,11)})
minetest.swap_node(at_side_s, {name="trunks:moss_with_fungus_"..rot, param2=4})
elseif moss_type < 22 then
minetest.swap_node(at_side_s, {name="trunks:moss", param2=math.random(8,11)})
minetest.swap_node(at_side_s, {name="trunks:moss_plain_"..rot, param2=4})
end
end
local moss_type = math.random(1,41)
if minetest.registered_nodes[node_west.name].buildable_to then -- instead of check_air = true,
if minetest.registered_nodes[node_west.name].buildable_to then
local moss_type = math.random(1,41)
local rot = math.random(0,3)
if moss_type == 1 then
minetest.swap_node(at_side_w, {name="trunks:moss_fungus", param2=math.random(16,19)})
minetest.swap_node(at_side_w, {name="trunks:moss_with_fungus_"..rot, param2=2})
elseif moss_type < 22 then
minetest.swap_node(at_side_w, {name="trunks:moss", param2=math.random(16,19)})
minetest.swap_node(at_side_w, {name="trunks:moss_plain_"..rot, param2=2})
end
end
--end