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-- Reimplementations of some environment function on vmanips, since this is | ||
-- what the emerge environment operates on | ||
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-- core.vmanip = <VoxelManip> -- set by C++ | ||
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function core.set_node(pos, node) | ||
return core.vmanip:set_node_at(pos, node) | ||
end | ||
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function core.bulk_set_node(pos_list, node) | ||
local vm = core.vmanip | ||
local set_node_at = vm.set_node_at | ||
for _, pos in ipairs(pos_list) do | ||
if not set_node_at(vm, pos, node) then | ||
return false | ||
end | ||
end | ||
return true | ||
end | ||
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core.add_node = core.set_node | ||
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-- we don't deal with metadata currently | ||
core.swap_node = core.set_node | ||
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function core.remove_node(pos) | ||
return core.vmanip:set_node_at(pos, {name="air"}) | ||
end | ||
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function core.get_node(pos) | ||
return core.vmanip:get_node_at(pos) | ||
end | ||
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function core.get_node_or_nil(pos) | ||
local node = core.vmanip:get_node_at(pos) | ||
return node.name ~= "ignore" and node | ||
end | ||
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function core.get_perlin(seed, octaves, persist, spread) | ||
local params | ||
if type(seed) == "table" then | ||
params = table.copy(seed) | ||
else | ||
assert(type(seed) == "number") | ||
params = { | ||
seed = seed, | ||
octaves = octaves, | ||
persist = persist, | ||
spread = {x=spread, y=spread, z=spread}, | ||
} | ||
end | ||
params.seed = core.get_seed(params.seed) -- add mapgen seed | ||
return PerlinNoise(params) | ||
end | ||
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function core.get_perlin_map(params, size) | ||
local params2 = table.copy(params) | ||
params2.seed = core.get_seed(params.seed) -- add mapgen seed | ||
return PerlinNoiseMap(params2, size) | ||
end |
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local gamepath = core.get_builtin_path() .. "game" .. DIR_DELIM | ||
local commonpath = core.get_builtin_path() .. "common" .. DIR_DELIM | ||
local epath = core.get_builtin_path() .. "emerge" .. DIR_DELIM | ||
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local builtin_shared = {} | ||
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-- Import parts shared with "game" environment | ||
dofile(gamepath .. "constants.lua") | ||
assert(loadfile(commonpath .. "item_s.lua"))(builtin_shared) | ||
dofile(gamepath .. "misc_s.lua") | ||
dofile(gamepath .. "features.lua") | ||
dofile(gamepath .. "voxelarea.lua") | ||
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-- Now for our own stuff | ||
assert(loadfile(commonpath .. "register.lua"))(builtin_shared) | ||
assert(loadfile(epath .. "register.lua"))(builtin_shared) | ||
dofile(epath .. "env.lua") | ||
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builtin_shared.cache_content_ids() | ||
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core.log("info", "Initialized emerge Lua environment") |
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local builtin_shared = ... | ||
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-- Copy all the registration tables over | ||
do | ||
local all = assert(core.transferred_globals) | ||
core.transferred_globals = nil | ||
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all.registered_nodes = {} | ||
all.registered_craftitems = {} | ||
all.registered_tools = {} | ||
for k, v in pairs(all.registered_items) do | ||
-- Disable further modification | ||
setmetatable(v, {__newindex = {}}) | ||
-- Reassemble the other tables | ||
if v.type == "node" then | ||
getmetatable(v).__index = all.nodedef_default | ||
all.registered_nodes[k] = v | ||
elseif v.type == "craft" then | ||
getmetatable(v).__index = all.craftitemdef_default | ||
all.registered_craftitems[k] = v | ||
elseif v.type == "tool" then | ||
getmetatable(v).__index = all.tooldef_default | ||
all.registered_tools[k] = v | ||
else | ||
getmetatable(v).__index = all.noneitemdef_default | ||
end | ||
end | ||
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for k, v in pairs(all) do | ||
core[k] = v | ||
end | ||
end | ||
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-- For tables that are indexed by item name: | ||
-- If table[X] does not exist, default to table[core.registered_aliases[X]] | ||
local alias_metatable = { | ||
__index = function(t, name) | ||
return rawget(t, core.registered_aliases[name]) | ||
end | ||
} | ||
setmetatable(core.registered_items, alias_metatable) | ||
setmetatable(core.registered_nodes, alias_metatable) | ||
setmetatable(core.registered_craftitems, alias_metatable) | ||
setmetatable(core.registered_tools, alias_metatable) | ||
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-- | ||
-- Callbacks | ||
-- | ||
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local make_registration = builtin_shared.make_registration | ||
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core.registered_on_mods_loaded, core.register_on_mods_loaded = make_registration() | ||
core.registered_on_generateds, core.register_on_generated = make_registration() | ||
core.registered_on_shutdown, core.register_on_shutdown = make_registration() |
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