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exposing API so that other mods can use this abm.

mineclone_compatibility
FaceDeer 2017-01-26 14:12:13 -07:00
parent e537155d25
commit 4bccd44d6e
1 changed files with 76 additions and 74 deletions

150
init.lua
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@ -1,3 +1,76 @@
dynamic_liquid = {} -- global table to expose liquid_abm for other mods' usage
-- By making this giant table of all possible permutations of horizontal direction we can avoid
-- lots of redundant calculations.
local all_direction_permutations = {
{{x=0,z=1},{x=0,z=-1},{x=1,z=0},{x=-1,z=0}},
{{x=0,z=1},{x=0,z=-1},{x=-1,z=0},{x=1,z=0}},
{{x=0,z=1},{x=1,z=0},{x=0,z=-1},{x=-1,z=0}},
{{x=0,z=1},{x=1,z=0},{x=-1,z=0},{x=0,z=-1}},
{{x=0,z=1},{x=-1,z=0},{x=0,z=-1},{x=1,z=0}},
{{x=0,z=1},{x=-1,z=0},{x=1,z=0},{x=0,z=-1}},
{{x=0,z=-1},{x=0,z=1},{x=-1,z=0},{x=1,z=0}},
{{x=0,z=-1},{x=0,z=1},{x=1,z=0},{x=-1,z=0}},
{{x=0,z=-1},{x=1,z=0},{x=-1,z=0},{x=0,z=1}},
{{x=0,z=-1},{x=1,z=0},{x=0,z=1},{x=-1,z=0}},
{{x=0,z=-1},{x=-1,z=0},{x=1,z=0},{x=0,z=1}},
{{x=0,z=-1},{x=-1,z=0},{x=0,z=1},{x=1,z=0}},
{{x=1,z=0},{x=0,z=1},{x=0,z=-1},{x=-1,z=0}},
{{x=1,z=0},{x=0,z=1},{x=-1,z=0},{x=0,z=-1}},
{{x=1,z=0},{x=0,z=-1},{x=0,z=1},{x=-1,z=0}},
{{x=1,z=0},{x=0,z=-1},{x=-1,z=0},{x=0,z=1}},
{{x=1,z=0},{x=-1,z=0},{x=0,z=1},{x=0,z=-1}},
{{x=1,z=0},{x=-1,z=0},{x=0,z=-1},{x=0,z=1}},
{{x=-1,z=0},{x=0,z=1},{x=1,z=0},{x=0,z=-1}},
{{x=-1,z=0},{x=0,z=1},{x=0,z=-1},{x=1,z=0}},
{{x=-1,z=0},{x=0,z=-1},{x=1,z=0},{x=0,z=1}},
{{x=-1,z=0},{x=0,z=-1},{x=0,z=1},{x=1,z=0}},
{{x=-1,z=0},{x=1,z=0},{x=0,z=-1},{x=0,z=1}},
{{x=-1,z=0},{x=1,z=0},{x=0,z=1},{x=0,z=-1}},
}
-- This is getting a bit silly, but hopefully every bit of optimization counts.
-- By recording local pointers to the get and set methods we avoid a couple of
-- table lookups in each ABM call.
local get_node = minetest.get_node
local set_node = minetest.set_node
dynamic_liquid.liquid_abm = function(liquid, flowing_liquid, chance)
minetest.register_abm({
nodenames = {liquid},
neighbors = {flowing_liquid},
interval = 1,
chance = chance or 1,
catch_up = false,
action = function(pos,node) -- Do everything possible to optimize this method
local check_pos = {x=pos.x, y=pos.y-1, z=pos.z}
local check_node = get_node(check_pos)
local check_node_name = check_node.name
if check_node_name == flowing_liquid or check_node_name == "air" then
set_node(pos, check_node)
set_node(check_pos, node)
return
end
local perm = all_direction_permutations[math.random(24)]
local dirs -- declare outside of loop so it won't keep entering/exiting scope
for i=1,4 do
dirs = perm[i]
-- reuse check_pos to avoid allocating a new table
check_pos.x = pos.x + dirs.x
check_pos.y = pos.y
check_pos.z = pos.z + dirs.z
check_node = get_node(check_pos)
check_node_name = check_node.name
if check_node_name == flowing_liquid or check_node_name == "air" then
set_node(pos, check_node)
set_node(check_pos, node)
return
end
end
end
})
end
local water = minetest.setting_getbool("dynamic_liquid_water")
water = water or water == nil -- default true
@ -37,85 +110,14 @@ if water then
minetest.register_node(":default:water_flowing", new_water_flowing_def)
end
-- By making this giant table of all possible permutations of horizontal direction we can avoid
-- lots of redundant calculations.
local all_direction_permutations = {
{{x=0,z=1},{x=0,z=-1},{x=1,z=0},{x=-1,z=0}},
{{x=0,z=1},{x=0,z=-1},{x=-1,z=0},{x=1,z=0}},
{{x=0,z=1},{x=1,z=0},{x=0,z=-1},{x=-1,z=0}},
{{x=0,z=1},{x=1,z=0},{x=-1,z=0},{x=0,z=-1}},
{{x=0,z=1},{x=-1,z=0},{x=0,z=-1},{x=1,z=0}},
{{x=0,z=1},{x=-1,z=0},{x=1,z=0},{x=0,z=-1}},
{{x=0,z=-1},{x=0,z=1},{x=-1,z=0},{x=1,z=0}},
{{x=0,z=-1},{x=0,z=1},{x=1,z=0},{x=-1,z=0}},
{{x=0,z=-1},{x=1,z=0},{x=-1,z=0},{x=0,z=1}},
{{x=0,z=-1},{x=1,z=0},{x=0,z=1},{x=-1,z=0}},
{{x=0,z=-1},{x=-1,z=0},{x=1,z=0},{x=0,z=1}},
{{x=0,z=-1},{x=-1,z=0},{x=0,z=1},{x=1,z=0}},
{{x=1,z=0},{x=0,z=1},{x=0,z=-1},{x=-1,z=0}},
{{x=1,z=0},{x=0,z=1},{x=-1,z=0},{x=0,z=-1}},
{{x=1,z=0},{x=0,z=-1},{x=0,z=1},{x=-1,z=0}},
{{x=1,z=0},{x=0,z=-1},{x=-1,z=0},{x=0,z=1}},
{{x=1,z=0},{x=-1,z=0},{x=0,z=1},{x=0,z=-1}},
{{x=1,z=0},{x=-1,z=0},{x=0,z=-1},{x=0,z=1}},
{{x=-1,z=0},{x=0,z=1},{x=1,z=0},{x=0,z=-1}},
{{x=-1,z=0},{x=0,z=1},{x=0,z=-1},{x=1,z=0}},
{{x=-1,z=0},{x=0,z=-1},{x=1,z=0},{x=0,z=1}},
{{x=-1,z=0},{x=0,z=-1},{x=0,z=1},{x=1,z=0}},
{{x=-1,z=0},{x=1,z=0},{x=0,z=-1},{x=0,z=1}},
{{x=-1,z=0},{x=1,z=0},{x=0,z=1},{x=0,z=-1}},
}
-- This is getting a bit silly, but hopefully every bit of optimization counts.
-- By recording local pointers to the get and set methods we avoid a couple of
-- table lookups in each ABM call.
local get_node = minetest.get_node
local set_node = minetest.set_node
local liquid_abm = function(liquid, flowing_liquid, chance)
minetest.register_abm({
nodenames = {liquid},
neighbors = {flowing_liquid},
interval = 1,
chance = chance or 1,
catch_up = false,
action = function(pos,node) -- Do everything possible to optimize this method
local check_pos = {x=pos.x, y=pos.y-1, z=pos.z}
local check_node = get_node(check_pos)
local check_node_name = check_node.name
if check_node_name == flowing_liquid or check_node_name == "air" then
set_node(pos, check_node)
set_node(check_pos, node)
return
end
local perm = all_direction_permutations[math.random(24)]
local dirs -- declare outside of loop so it won't keep entering/exiting scope
for i=1,4 do
dirs = perm[i]
-- reuse check_pos to avoid allocating a new table
check_pos.x = pos.x + dirs.x
check_pos.y = pos.y
check_pos.z = pos.z + dirs.z
check_node = get_node(check_pos)
check_node_name = check_node.name
if check_node_name == flowing_liquid or check_node_name == "air" then
set_node(pos, check_node)
set_node(check_pos, node)
return
end
end
end
})
end
if lava then
liquid_abm("default:lava_source", "default:lava_flowing", lava_probability)
dynamic_liquid.liquid_abm("default:lava_source", "default:lava_flowing", lava_probability)
end
if water then
liquid_abm("default:water_source", "default:water_flowing", 1)
dynamic_liquid.liquid_abm("default:water_source", "default:water_flowing", 1)
end
if river_water then
liquid_abm("default:river_water_source", "default:river_water_flowing", 1)
dynamic_liquid.liquid_abm("default:river_water_source", "default:river_water_flowing", 1)
end
-- register damp clay whether we're going to set the ABM or not, if the user disables this feature we don't want existing