forked from Minetest/dynamic_liquid
126 lines
3.7 KiB
Lua
126 lines
3.7 KiB
Lua
local water = minetest.setting_getbool("dynamic_liquid_water")
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water = water or water == nil -- default true
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local river_water = minetest.setting_getbool("dynamic_liquid_river_water")
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river_water = river_water or river_water == nil -- default true
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local lava = minetest.setting_getbool("dynamic_liquid_lava")
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lava = lava or lava == nil -- default true
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local lava_probability = tonumber(minetest.setting_get("dynamic_liquid_lava_flow_propability"))
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if lava_probability == nil then
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lava_probability = 5
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end
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local springs = minetest.setting_getbool("dynamic_liquid_springs")
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springs = springs or springs == nil -- default true
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-- One must override a registered node definition with a new one, can't just twiddle with the parameters of the existing table
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local duplicate_def = function (name)
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local old_def = minetest.registered_nodes[name]
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local new_def = {}
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for param, value in pairs(old_def) do
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new_def[param] = value
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end
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return new_def
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end
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if water then
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-- override water_source and water_flowing with liquid_renewable set to false
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local new_water_def = duplicate_def("default:water_source")
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new_water_def.liquid_renewable = false
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minetest.register_node(":default:water_source", new_water_def)
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local new_water_flowing_def = duplicate_def("default:water_flowing")
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new_water_flowing_def.liquid_renewable = false
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minetest.register_node(":default:water_flowing", new_water_flowing_def)
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end
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local rand_dir = function()
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local dirs= {
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{x=0,y=0,z=1},
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{x=0,y=0,z=-1},
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{x=1,y=0,z=0},
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{x=-1,y=0,z=0},
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}
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return dirs[math.random(4)]
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end
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local down = {x=0,y=-1,z=0}
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local liquid_abm = function(liquid, flowing_liquid, chance)
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minetest.register_abm({
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nodenames = {liquid},
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neighbors = {flowing_liquid},
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interval = 1,
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chance = chance or 1,
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catch_up = false,
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action = function(pos,node)
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local check_pos = vector.add(pos, down)
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local check_node = minetest.get_node(check_pos)
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if check_node.name == flowing_liquid then
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minetest.set_node(pos, check_node)
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minetest.set_node(check_pos, node)
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return
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end
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check_pos = vector.add(pos, rand_dir())
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check_node = minetest.get_node(check_pos)
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if check_node.name == flowing_liquid then
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minetest.set_node(pos, check_node)
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minetest.set_node(check_pos, node)
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end
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end
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})
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end
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if lava then
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liquid_abm("default:lava_source", "default:lava_flowing", lava_probability)
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end
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if water then
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liquid_abm("default:water_source", "default:water_flowing", nil)
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end
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if river_water then
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liquid_abm("default:river_water_source", "default:river_water_flowing", nil)
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end
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-- register damp clay whether we're going to set the ABM or not, if the user disables this feature we don't want existing
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-- spring clay to turn into unknown nodes.
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local clay_def = duplicate_def("default:clay")
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clay_def.description = "Damp Clay"
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minetest.register_node("dynamic_liquid:clay", clay_def)
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if springs then
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local c_clay = minetest.get_content_id("default:clay")
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local c_spring_clay = minetest.get_content_id("dynamic_liquid:clay")
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minetest.register_on_generated(function(minp, maxp, seed)
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if minp.y >= 0 or maxp.y <= -15 then
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return
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end
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local vm, emin, emax = minetest.get_mapgen_object("voxelmanip")
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local data = vm:get_data()
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for voxelpos, voxeldata in pairs(data) do
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if voxeldata == c_clay then
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data[voxelpos] = c_spring_clay
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end
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end
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vm:set_data(data)
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vm:write_to_map()
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end)
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minetest.register_abm({
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nodenames = {"dynamic_liquid:clay"},
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neighbors = {"air"},
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interval = 1,
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chance = 1,
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catch_up = false,
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action = function(pos,node)
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local check_pos = {x=pos.x, y=pos.y+1, z=pos.z}
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local check_node = minetest.get_node(check_pos)
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if check_node.name == "air" or check_node.name == "default:water_flowing" then
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minetest.set_node(check_pos, {name="default:water_source"})
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end
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end
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})
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end |