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new flow logic: abms.lua: implement node transitions

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thetaepsilon-gamedev 2017-10-08 16:19:51 +01:00
parent 32a24730f1
commit eaf6c33bae
1 changed files with 50 additions and 1 deletions
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51
new_flow_logic/abms.lua
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@ -29,7 +29,7 @@ end
--local formatvec = function(vec) local sep="," return "("..tostring(vec.x)..sep..tostring(vec.y)..sep..tostring(vec.z)..")" 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,
@ -106,6 +106,13 @@ flowlogic.run = function(pos, node)
finitemode)
end
-- if node has pressure transitions: determine new node
if pipeworks.flowables.transitions.list[nodename] then
local newnode = flowlogic.run_transition(node, currentpressure)
--pipeworks.logger("flowlogic.run()@"..formatvec(pos).." transition, new node name = "..dump(newnode).." pressure "..tostring(currentpressure))
minetest.swap_node(pos, newnode)
end
-- set the new pressure
nodepressure.set(currentpressure)
end
@ -240,3 +247,45 @@ flowlogic.run_output = function(pos, node, currentpressure, oldpressure, outputd
end
return result
end
-- determine which node to switch to based on current pressure
flowlogic.run_transition = function(node, currentpressure)
local simplesetdef = pipeworks.flowables.transitions.simple[node.name]
local result = node
local found = false
-- simple transition sets: assumes all nodes in the set share param values.
if simplesetdef then
-- assumes that the set has been checked to contain at least one element...
local nodename_prev = simplesetdef[1].nodename
local result_nodename = node.name
for index, element in ipairs(simplesetdef) do
-- find the highest element that is below the current pressure.
local threshold = element.threshold
if threshold > currentpressure then
result_nodename = nodename_prev
found = true
break
end
nodename_prev = element.nodename
end
-- use last element if no threshold is greater than current pressure
if not found then
result_nodename = nodename_prev
found = true
end
-- preserve param1/param2 values
result = { name=result_nodename, param1=node.param1, param2=node.param2 }
end
if not found then
pipeworks.logger("flowlogic.run_transition() BUG no transition definitions found! nodename="..nodename.." currentpressure="..tostring(currentpressure))
end
return result
end