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pressure logic: abms.lua: get_neighbour_positions: move calculation of absolute world position to neighbour probing for-loop

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This allows the raw offset to be visible inside that for-loop, which will be needed for calling the directionfn for directional neighbours to determine if they can flow in the given direction.
This commit is contained in:
thetaepsilon-gamedev 2017-10-18 09:32:33 +01:00
parent a69c5e24a9
commit 084bbc6c0b
1 changed files with 14 additions and 13 deletions
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27
pressure_logic/abms.lua
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@ -23,16 +23,6 @@ local make_coords_offsets = function(pos, include_base)
return coords
end
-- create positions from list of offsets
-- see in use of directional flow logic below
local apply_coords_offsets = function(pos, offsets)
local result = {}
for index, offset in ipairs(offsets) do
table.insert(result, vector.add(pos, offset))
end
return result
end
-- local debuglog = function(msg) print("## "..msg) end
@ -41,6 +31,8 @@ end
local formatvec = function(vec) local sep="," return "("..tostring(vec.x)..sep..tostring(vec.y)..sep..tostring(vec.z)..")" end
-- new version of liquid check
-- accepts a limit parameter to only delete water blocks that the receptacle can accept,
-- and returns it so that the receptacle can update it's pressure values.
@ -130,6 +122,14 @@ end
local simple_neighbour_offsets = {
{x=0, y=-1,z= 0},
{x=0, y= 1,z= 0},
{x=-1,y= 0,z= 0},
{x= 1,y= 0,z= 0},
{x= 0,y= 0,z=-1},
{x= 0,y= 0,z= 1},
}
local get_neighbour_positions = function(pos, node)
-- get list of node neighbours.
-- if this node is directional and only flows on certain sides,
@ -137,14 +137,14 @@ local get_neighbour_positions = function(pos, node)
-- for simple flowables this is just an auto-gen'd list of all six possible neighbours.
local candidates = {}
if pipeworks.flowables.list.simple[node.name] then
candidates = make_coords_offsets(pos, false)
candidates = simple_neighbour_offsets
else
-- directional flowables: call the callback to get the list
local directional = pipeworks.flowables.list.directional[node.name]
if directional then
--pipeworks.logger(dname.."invoking neighbourfn")
local offsets = directional.neighbourfn(node)
candidates = apply_coords_offsets(pos, offsets)
candidates = offsets
end
end
@ -152,7 +152,8 @@ local get_neighbour_positions = function(pos, node)
-- for now, just check if it's in the simple table.
-- TODO: will need to add a single-face direction checking function for directional nodes
local connections = {}
for index, npos in ipairs(candidates) do
for index, offset in ipairs(candidates) do
local npos = vector.add(pos, offset)
local nodename = minetest.get_node(npos).name
local is_simple = (pipeworks.flowables.list.simple[nodename])
if is_simple then