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Improve liquid helper convenience

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This commit is contained in:
Lars Mueller 2020-12-17 19:06:24 +01:00
parent a55a8b07ee
commit 98ac064c55
1 changed files with 7 additions and 6 deletions
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13
minetest.lua
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@ -140,10 +140,10 @@ end)
liquid_level_max = 8
--+ Calculates the flow direction of a flowingliquid node
--# as returned by `minetest.get_node`
--> 4 corner levels from 0 to 1 as list
function get_liquid_corner_levels(pos, node)
--> 4 corner levels from -0.5 to 0.5 as list
function get_liquid_corner_levels(pos)
local node = minetest.get_node(pos)
local def = minetest.registered_nodes[node.name]
if not (def and def.drawtype == "flowingliquid") then return pointed_thing end
local source, flowing = def.liquid_alternative_source, node.name
local range = def.liquid_range or liquid_level_max
local neighbors = {}
@ -205,7 +205,8 @@ function get_liquid_corner_levels(pos, node)
{x = 0, z = 1}
}
for _, corner_level in pairs(corner_levels) do
corner_level.y = get_corner_level(corner_level.x, corner_level.z)
corner_level.y = get_corner_level(corner_level.x, corner_level.z) - 0.5
corner_level.x, corner_level.z = corner_level.x - 0.5, corner_level.z - 0.5
end
return corner_levels
end
@ -215,8 +216,8 @@ flowing_downwards = vector.new(0, -1, 0)
--# as returned by `minetest.get_node`
--> `modlib.minetest.flowing_downwards = vector.new(0, -1, 0)` if only flowing downwards
--> surface direction as `vector` else
function get_liquid_flow_direction(pos, node)
local corner_levels = get_liquid_corner_levels(pos, node)
function get_liquid_flow_direction(pos)
local corner_levels = get_liquid_corner_levels(pos)
local max_level = corner_levels[1].y
for index = 2, 4 do
local level = corner_levels[index].y