diff --git a/builtin/game/init.lua b/builtin/game/init.lua index bb007fabd..c5f08113b 100644 --- a/builtin/game/init.lua +++ b/builtin/game/init.lua @@ -8,6 +8,7 @@ local gamepath = scriptpath .. "game".. DIR_DELIM local builtin_shared = {} dofile(gamepath .. "constants.lua") +dofile(gamepath .. "item_s.lua") assert(loadfile(gamepath .. "item.lua"))(builtin_shared) dofile(gamepath .. "register.lua") @@ -18,6 +19,7 @@ end dofile(commonpath .. "after.lua") dofile(gamepath .. "item_entity.lua") dofile(gamepath .. "deprecated.lua") +dofile(gamepath .. "misc_s.lua") dofile(gamepath .. "misc.lua") dofile(gamepath .. "privileges.lua") dofile(gamepath .. "auth.lua") diff --git a/builtin/game/item.lua b/builtin/game/item.lua index 5a83eafd2..439a71679 100644 --- a/builtin/game/item.lua +++ b/builtin/game/item.lua @@ -15,15 +15,6 @@ end -- Item definition helpers -- -function core.inventorycube(img1, img2, img3) - img2 = img2 or img1 - img3 = img3 or img1 - return "[inventorycube" - .. "{" .. img1:gsub("%^", "&") - .. "{" .. img2:gsub("%^", "&") - .. "{" .. img3:gsub("%^", "&") -end - function core.get_pointed_thing_position(pointed_thing, above) if pointed_thing.type == "node" then if above then @@ -37,144 +28,6 @@ function core.get_pointed_thing_position(pointed_thing, above) end end -function core.dir_to_facedir(dir, is6d) - --account for y if requested - if is6d and math.abs(dir.y) > math.abs(dir.x) and math.abs(dir.y) > math.abs(dir.z) then - - --from above - if dir.y < 0 then - if math.abs(dir.x) > math.abs(dir.z) then - if dir.x < 0 then - return 19 - else - return 13 - end - else - if dir.z < 0 then - return 10 - else - return 4 - end - end - - --from below - else - if math.abs(dir.x) > math.abs(dir.z) then - if dir.x < 0 then - return 15 - else - return 17 - end - else - if dir.z < 0 then - return 6 - else - return 8 - end - end - end - - --otherwise, place horizontally - elseif math.abs(dir.x) > math.abs(dir.z) then - if dir.x < 0 then - return 3 - else - return 1 - end - else - if dir.z < 0 then - return 2 - else - return 0 - end - end -end - --- Table of possible dirs -local facedir_to_dir = { - vector.new( 0, 0, 1), - vector.new( 1, 0, 0), - vector.new( 0, 0, -1), - vector.new(-1, 0, 0), - vector.new( 0, -1, 0), - vector.new( 0, 1, 0), -} --- Mapping from facedir value to index in facedir_to_dir. -local facedir_to_dir_map = { - [0]=1, 2, 3, 4, - 5, 2, 6, 4, - 6, 2, 5, 4, - 1, 5, 3, 6, - 1, 6, 3, 5, - 1, 4, 3, 2, -} -function core.facedir_to_dir(facedir) - return facedir_to_dir[facedir_to_dir_map[facedir % 32]] -end - -function core.dir_to_wallmounted(dir) - if math.abs(dir.y) > math.max(math.abs(dir.x), math.abs(dir.z)) then - if dir.y < 0 then - return 1 - else - return 0 - end - elseif math.abs(dir.x) > math.abs(dir.z) then - if dir.x < 0 then - return 3 - else - return 2 - end - else - if dir.z < 0 then - return 5 - else - return 4 - end - end -end - --- table of dirs in wallmounted order -local wallmounted_to_dir = { - [0] = vector.new( 0, 1, 0), - vector.new( 0, -1, 0), - vector.new( 1, 0, 0), - vector.new(-1, 0, 0), - vector.new( 0, 0, 1), - vector.new( 0, 0, -1), -} -function core.wallmounted_to_dir(wallmounted) - return wallmounted_to_dir[wallmounted % 8] -end - -function core.dir_to_yaw(dir) - return -math.atan2(dir.x, dir.z) -end - -function core.yaw_to_dir(yaw) - return vector.new(-math.sin(yaw), 0, math.cos(yaw)) -end - -function core.is_colored_paramtype(ptype) - return (ptype == "color") or (ptype == "colorfacedir") or - (ptype == "colorwallmounted") or (ptype == "colordegrotate") -end - -function core.strip_param2_color(param2, paramtype2) - if not core.is_colored_paramtype(paramtype2) then - return nil - end - if paramtype2 == "colorfacedir" then - param2 = math.floor(param2 / 32) * 32 - elseif paramtype2 == "colorwallmounted" then - param2 = math.floor(param2 / 8) * 8 - elseif paramtype2 == "colordegrotate" then - param2 = math.floor(param2 / 32) * 32 - end - -- paramtype2 == "color" requires no modification. - return param2 -end - local function has_all_groups(tbl, required_groups) if type(required_groups) == "string" then return (tbl[required_groups] or 0) ~= 0 diff --git a/builtin/game/item_s.lua b/builtin/game/item_s.lua new file mode 100644 index 000000000..a51cd0a1c --- /dev/null +++ b/builtin/game/item_s.lua @@ -0,0 +1,156 @@ +-- Minetest: builtin/item_s.lua +-- The distinction of what goes here is a bit tricky, basically it's everything +-- that does not (directly or indirectly) need access to ServerEnvironment, +-- Server or writable access to IGameDef on the engine side. +-- (The '_s' stands for standalone.) + +-- +-- Item definition helpers +-- + +function core.inventorycube(img1, img2, img3) + img2 = img2 or img1 + img3 = img3 or img1 + return "[inventorycube" + .. "{" .. img1:gsub("%^", "&") + .. "{" .. img2:gsub("%^", "&") + .. "{" .. img3:gsub("%^", "&") +end + +function core.dir_to_facedir(dir, is6d) + --account for y if requested + if is6d and math.abs(dir.y) > math.abs(dir.x) and math.abs(dir.y) > math.abs(dir.z) then + + --from above + if dir.y < 0 then + if math.abs(dir.x) > math.abs(dir.z) then + if dir.x < 0 then + return 19 + else + return 13 + end + else + if dir.z < 0 then + return 10 + else + return 4 + end + end + + --from below + else + if math.abs(dir.x) > math.abs(dir.z) then + if dir.x < 0 then + return 15 + else + return 17 + end + else + if dir.z < 0 then + return 6 + else + return 8 + end + end + end + + --otherwise, place horizontally + elseif math.abs(dir.x) > math.abs(dir.z) then + if dir.x < 0 then + return 3 + else + return 1 + end + else + if dir.z < 0 then + return 2 + else + return 0 + end + end +end + +-- Table of possible dirs +local facedir_to_dir = { + vector.new( 0, 0, 1), + vector.new( 1, 0, 0), + vector.new( 0, 0, -1), + vector.new(-1, 0, 0), + vector.new( 0, -1, 0), + vector.new( 0, 1, 0), +} +-- Mapping from facedir value to index in facedir_to_dir. +local facedir_to_dir_map = { + [0]=1, 2, 3, 4, + 5, 2, 6, 4, + 6, 2, 5, 4, + 1, 5, 3, 6, + 1, 6, 3, 5, + 1, 4, 3, 2, +} +function core.facedir_to_dir(facedir) + return facedir_to_dir[facedir_to_dir_map[facedir % 32]] +end + +function core.dir_to_wallmounted(dir) + if math.abs(dir.y) > math.max(math.abs(dir.x), math.abs(dir.z)) then + if dir.y < 0 then + return 1 + else + return 0 + end + elseif math.abs(dir.x) > math.abs(dir.z) then + if dir.x < 0 then + return 3 + else + return 2 + end + else + if dir.z < 0 then + return 5 + else + return 4 + end + end +end + +-- table of dirs in wallmounted order +local wallmounted_to_dir = { + [0] = vector.new( 0, 1, 0), + vector.new( 0, -1, 0), + vector.new( 1, 0, 0), + vector.new(-1, 0, 0), + vector.new( 0, 0, 1), + vector.new( 0, 0, -1), +} +function core.wallmounted_to_dir(wallmounted) + return wallmounted_to_dir[wallmounted % 8] +end + +function core.dir_to_yaw(dir) + return -math.atan2(dir.x, dir.z) +end + +function core.yaw_to_dir(yaw) + return vector.new(-math.sin(yaw), 0, math.cos(yaw)) +end + +function core.is_colored_paramtype(ptype) + return (ptype == "color") or (ptype == "colorfacedir") or + (ptype == "colorwallmounted") or (ptype == "colordegrotate") +end + +function core.strip_param2_color(param2, paramtype2) + if not core.is_colored_paramtype(paramtype2) then + return nil + end + if paramtype2 == "colorfacedir" then + param2 = math.floor(param2 / 32) * 32 + elseif paramtype2 == "colorwallmounted" then + param2 = math.floor(param2 / 8) * 8 + elseif paramtype2 == "colordegrotate" then + param2 = math.floor(param2 / 32) * 32 + end + -- paramtype2 == "color" requires no modification. + return param2 +end diff --git a/builtin/game/misc.lua b/builtin/game/misc.lua index e86efc50c..18d5a7310 100644 --- a/builtin/game/misc.lua +++ b/builtin/game/misc.lua @@ -121,53 +121,6 @@ function core.get_player_radius_area(player_name, radius) end -function core.hash_node_position(pos) - return (pos.z + 32768) * 65536 * 65536 - + (pos.y + 32768) * 65536 - + pos.x + 32768 -end - - -function core.get_position_from_hash(hash) - local x = (hash % 65536) - 32768 - hash = math.floor(hash / 65536) - local y = (hash % 65536) - 32768 - hash = math.floor(hash / 65536) - local z = (hash % 65536) - 32768 - return vector.new(x, y, z) -end - - -function core.get_item_group(name, group) - if not core.registered_items[name] or not - core.registered_items[name].groups[group] then - return 0 - end - return core.registered_items[name].groups[group] -end - - -function core.get_node_group(name, group) - core.log("deprecated", "Deprecated usage of get_node_group, use get_item_group instead") - return core.get_item_group(name, group) -end - - -function core.setting_get_pos(name) - local value = core.settings:get(name) - if not value then - return nil - end - return core.string_to_pos(value) -end - - --- See l_env.cpp for the other functions -function core.get_artificial_light(param1) - return math.floor(param1 / 16) -end - - -- To be overriden by protection mods function core.is_protected(pos, name) @@ -282,42 +235,3 @@ end -- Used for callback handling with dynamic_add_media core.dynamic_media_callbacks = {} - - --- PNG encoder safety wrapper - -local o_encode_png = core.encode_png -function core.encode_png(width, height, data, compression) - if type(width) ~= "number" then - error("Incorrect type for 'width', expected number, got " .. type(width)) - end - if type(height) ~= "number" then - error("Incorrect type for 'height', expected number, got " .. type(height)) - end - - local expected_byte_count = width * height * 4 - - if type(data) ~= "table" and type(data) ~= "string" then - error("Incorrect type for 'data', expected table or string, got " .. type(data)) - end - - local data_length = type(data) == "table" and #data * 4 or string.len(data) - - if data_length ~= expected_byte_count then - error(string.format( - "Incorrect length of 'data', width and height imply %d bytes but %d were provided", - expected_byte_count, - data_length - )) - end - - if type(data) == "table" then - local dataBuf = {} - for i = 1, #data do - dataBuf[i] = core.colorspec_to_bytes(data[i]) - end - data = table.concat(dataBuf) - end - - return o_encode_png(width, height, data, compression or 6) -end diff --git a/builtin/game/misc_s.lua b/builtin/game/misc_s.lua new file mode 100644 index 000000000..67a0ec684 --- /dev/null +++ b/builtin/game/misc_s.lua @@ -0,0 +1,93 @@ +-- Minetest: builtin/misc_s.lua +-- The distinction of what goes here is a bit tricky, basically it's everything +-- that does not (directly or indirectly) need access to ServerEnvironment, +-- Server or writable access to IGameDef on the engine side. +-- (The '_s' stands for standalone.) + +-- +-- Misc. API functions +-- + +function core.hash_node_position(pos) + return (pos.z + 32768) * 65536 * 65536 + + (pos.y + 32768) * 65536 + + pos.x + 32768 +end + + +function core.get_position_from_hash(hash) + local x = (hash % 65536) - 32768 + hash = math.floor(hash / 65536) + local y = (hash % 65536) - 32768 + hash = math.floor(hash / 65536) + local z = (hash % 65536) - 32768 + return vector.new(x, y, z) +end + + +function core.get_item_group(name, group) + if not core.registered_items[name] or not + core.registered_items[name].groups[group] then + return 0 + end + return core.registered_items[name].groups[group] +end + + +function core.get_node_group(name, group) + core.log("deprecated", "Deprecated usage of get_node_group, use get_item_group instead") + return core.get_item_group(name, group) +end + + +function core.setting_get_pos(name) + local value = core.settings:get(name) + if not value then + return nil + end + return core.string_to_pos(value) +end + + +-- See l_env.cpp for the other functions +function core.get_artificial_light(param1) + return math.floor(param1 / 16) +end + +-- PNG encoder safety wrapper + +local o_encode_png = core.encode_png +function core.encode_png(width, height, data, compression) + if type(width) ~= "number" then + error("Incorrect type for 'width', expected number, got " .. type(width)) + end + if type(height) ~= "number" then + error("Incorrect type for 'height', expected number, got " .. type(height)) + end + + local expected_byte_count = width * height * 4 + + if type(data) ~= "table" and type(data) ~= "string" then + error("Incorrect type for 'data', expected table or string, got " .. type(data)) + end + + local data_length = type(data) == "table" and #data * 4 or string.len(data) + + if data_length ~= expected_byte_count then + error(string.format( + "Incorrect length of 'data', width and height imply %d bytes but %d were provided", + expected_byte_count, + data_length + )) + end + + if type(data) == "table" then + local dataBuf = {} + for i = 1, #data do + dataBuf[i] = core.colorspec_to_bytes(data[i]) + end + data = table.concat(dataBuf) + end + + return o_encode_png(width, height, data, compression or 6) +end