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fix nil references in flowing_logic.lua

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Vanessa Ezekowitz 2013-08-07 22:16:47 -04:00
parent f66336394e
commit b310c201b5
1 changed files with 7 additions and 6 deletions
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13
flowing_logic.lua
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@ -16,7 +16,7 @@ pipeworks_check_for_liquids = function(pos)
{x=pos.x,y=pos.y,z=pos.z+1}, } {x=pos.x,y=pos.y,z=pos.z+1}, }
for i =1,6 do for i =1,6 do
local name = minetest.get_node(coords[i]).name local name = minetest.get_node(coords[i]).name
if string.find(name,"water") then if name and string.find(name,"water") then
if finitewater then minetest.remove_node(coords[i]) end if finitewater then minetest.remove_node(coords[i]) end
return true return true
end end
@ -37,7 +37,7 @@ pipeworks_check_for_inflows = function(pos,node)
for i =1,6 do for i =1,6 do
if newnode then break end if newnode then break end
local name = minetest.get_node(coords[i]).name local name = minetest.get_node(coords[i]).name
if (name == "pipeworks:pump_on" and pipeworks_check_for_liquids(coords[i])) or string.find(name,"_loaded") then if name and (name == "pipeworks:pump_on" and pipeworks_check_for_liquids(coords[i])) or string.find(name,"_loaded") then
if string.find(name,"_loaded") then if string.find(name,"_loaded") then
local source = minetest.get_meta(coords[i]):get_string("source") local source = minetest.get_meta(coords[i]):get_string("source")
if source == minetest.pos_to_string(pos) then break end if source == minetest.pos_to_string(pos) then break end
@ -57,7 +57,7 @@ pipeworks_check_sources = function(pos,node)
if not sourcepos then return end if not sourcepos then return end
local source = minetest.get_node(sourcepos).name local source = minetest.get_node(sourcepos).name
local newnode = false local newnode = false
if not ((source == "pipeworks:pump_on" and pipeworks_check_for_liquids(sourcepos)) or string.find(source,"_loaded") or source == "ignore" ) then if source and not ((source == "pipeworks:pump_on" and pipeworks_check_for_liquids(sourcepos)) or string.find(source,"_loaded") or source == "ignore" ) then
newnode = string.gsub(node.name,"loaded","empty") newnode = string.gsub(node.name,"loaded","empty")
end end
@ -69,7 +69,7 @@ end
pipeworks_spigot_check = function(pos, node) pipeworks_spigot_check = function(pos, node)
local belowname = minetest.get_node({x=pos.x,y=pos.y-1,z=pos.z}).name local belowname = minetest.get_node({x=pos.x,y=pos.y-1,z=pos.z}).name
if belowname == "air" or belowname == "default:water_flowing" or belowname == "default:water_source" then if belowname and (belowname == "air" or belowname == "default:water_flowing" or belowname == "default:water_source") then
local spigotname = minetest.get_node(pos).name local spigotname = minetest.get_node(pos).name
local fdir=node.param2 local fdir=node.param2
local check = { local check = {
@ -78,8 +78,9 @@ pipeworks_spigot_check = function(pos, node)
{x=pos.x,y=pos.y,z=pos.z-1}, {x=pos.x,y=pos.y,z=pos.z-1},
{x=pos.x-1,y=pos.y,z=pos.z} {x=pos.x-1,y=pos.y,z=pos.z}
} }
if string.find(minetest.get_node(check[fdir+1]).name, "_loaded") then local near_node = minetest.get_node(check[fdir+1])
if spigotname == "pipeworks:spigot" then if near_node and string.find(near_node.name, "_loaded") then
if spigotname and spigotname == "pipeworks:spigot" then
minetest.add_node(pos,{name = "pipeworks:spigot_pouring", param2 = fdir}) minetest.add_node(pos,{name = "pipeworks:spigot_pouring", param2 = fdir})
if finitewater or belowname ~= "default:water_source" then if finitewater or belowname ~= "default:water_source" then
minetest.add_node({x=pos.x,y=pos.y-1,z=pos.z},{name = "default:water_source"}) minetest.add_node({x=pos.x,y=pos.y-1,z=pos.z},{name = "default:water_source"})