pressure logic: add horizontally-rotating directional flowable helper

This commit is contained in:
thetaepsilon-gamedev 2017-10-19 12:28:33 +01:00
parent efcec7bdce
commit 0913098a9d

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@ -66,6 +66,43 @@ register.directional_vertical_fixed = function(nodename, topside)
register.directional(nodename, neighbourfn, directionfn) register.directional(nodename, neighbourfn, directionfn)
end end
-- register a node as a directional flowable whose accepting sides depends upon param2 rotation.
-- used for entry panels, valves, flow sensors and spigots,
-- whose facing axis is always upwards and can only rotate horizontally.
local iseastwest = function(node)
local data = node.param2
local rotation = data % 4
-- rotation 0 and 2 is the same axis, as is 1 and 3.
-- 0-3 starts at north and proceeds clockwise.
local axis = rotation % 2
--pipeworks.logger("iseastwest() rotation="..tostring(rotation).." axis="..tostring(axis))
return (axis == 1)
end
register.directional_horizonal_rotate = function(nodename)
local north = {x= 0,y= 0,z= 1}
local south = {x= 0,y= 0,z=-1}
local east = {x= 1,y= 0,z= 0}
local west = {x=-1,y= 0,z= 0}
local neighbourfn = function(node)
if iseastwest(node) then
return { east, west }
else
return { north, south }
end
end
local directionfn = function(node, direction)
local result = false
if iseastwest(node) then
--pipeworks.logger("horizontal rotate directionfn() eastwest=true")
result = vector.equals(direction, east) or vector.equals(direction, west)
else
result = vector.equals(direction, north) or vector.equals(direction, south)
end
return result
end
register.directional(nodename, neighbourfn, directionfn)
end
local checkbase = function(nodename) local checkbase = function(nodename)