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Improvements/fixes for noise parameter input in advanced settings 

Formspec input for each individual noise parameter and flag.
Allow noise flags to be set in advanced settings, previously only settable
in minetest.conf.

Standardise 'group format' for noise parameters set in minetest.conf, as
only these support noise flags. However the older 'single line' format is
still accepted to support existing minetest.conf files.
Therefore auto-generate minetest.conf.example with noise parameters in
'group format'.

Setting 'type' in settingtypes.txt is now either 'noise_params_2D' or
'noise_params_3D', the dimension number is displayed in the advanced
settings edit page.
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@srifqi @paramat
srifqi authored and paramat committed Sep 9, 2017
1 parent c60abb2 commit a1e1a19ac355dbe7e1a2e060fd6b5fe082298eb6
View file
291 builtin/mainmenu/dlg_settings_advanced.lua
@@ -25,6 +25,10 @@ local CHAR_CLASSES = {
FLAGS = "[%w_%-%.,]",
}

local function flags_to_table(flags)
return flags:gsub("%s+", ""):split(",", true) -- Remove all spaces and split
end

-- returns error message, or nil
local function parse_setting_line(settings, line, read_all, base_level, allow_secure)
-- comment
@@ -111,7 +115,7 @@ local function parse_setting_line(settings, line, read_all, base_level, allow_se
return
end

if setting_type == "string" or setting_type == "noise_params"
if setting_type == "string"
or setting_type == "key" or setting_type == "v3f" then
local default = remaining_line:match("^(.*)$")

@@ -133,6 +137,60 @@ local function parse_setting_line(settings, line, read_all, base_level, allow_se
return
end

if setting_type == "noise_params_2d"
or setting_type == "noise_params_3d" then
local default = remaining_line:match("^(.*)$")

if not default then
return "Invalid string setting"
end

local values = {}
local ti = 1
local index = 1
for line in default:gmatch("[+-]?[%d.-e]+") do -- All numeric characters
index = default:find("[+-]?[%d.-e]+", index) + line:len()
table.insert(values, line)
ti = ti + 1
if ti > 9 then
break
end
end
index = default:find("[^, ]", index)
local flags = ""
if index then
flags = default:sub(index)
default = default:sub(1, index - 3) -- Make sure no flags in single-line format
end
table.insert(values, flags)

table.insert(settings, {
name = name,
readable_name = readable_name,
type = setting_type,
default = default,
default_table = {
offset = values[1],
scale = values[2],
spread = {
x = values[3],
y = values[4],
z = values[5]
},
seed = values[6],
octaves = values[7],
persistence = values[8],
lacunarity = values[9],
flags = values[10]
},
values = values,
comment = current_comment,
noise_params = true,
flags = flags_to_table("defaults,eased,absvalue")
})
return
end

if setting_type == "bool" then
if remaining_line ~= "false" and remaining_line ~= "true" then
return "Invalid boolean setting"
@@ -236,7 +294,7 @@ local function parse_setting_line(settings, line, read_all, base_level, allow_se
readable_name = readable_name,
type = "flags",
default = default,
possible = possible,
possible = flags_to_table(possible),
comment = current_comment,
})
return
@@ -430,11 +488,61 @@ local function get_current_value(setting)
return value
end

local function get_current_np_group(setting)
local value = core.settings:get_np_group(setting.name)
local t = {}
if value == nil then
t = setting.values
else
table.insert(t, value.offset)
table.insert(t, value.scale)
table.insert(t, value.spread.x)
table.insert(t, value.spread.y)
table.insert(t, value.spread.z)
table.insert(t, value.seed)
table.insert(t, value.octaves)
table.insert(t, value.persistence)
table.insert(t, value.lacunarity)
table.insert(t, value.flags)
end
return t
end

local function get_current_np_group_as_string(setting)
local value = core.settings:get_np_group(setting.name)
local t
if value == nil then
t = setting.default
else
t = value.offset .. ", " ..
value.scale .. ", (" ..
value.spread.x .. ", " ..
value.spread.y .. ", " ..
value.spread.z .. "), " ..
value.seed .. ", " ..
value.octaves .. ", " ..
value.persistence .. ", " ..
value.lacunarity .. ", " ..
value.flags
end
return t
end

local checkboxes = {} -- handle checkboxes events

local function create_change_setting_formspec(dialogdata)
local setting = settings[selected_setting]
local formspec = "size[10,5.2,true]" ..
"button[5,4.5;2,1;btn_done;" .. fgettext("Save") .. "]" ..
"button[3,4.5;2,1;btn_cancel;" .. fgettext("Cancel") .. "]" ..
local height = 5.2
if setting.type == "noise_params_2d" or setting.type == "noise_params_3d" then
-- Three flags, checkboxes on 2 columns, with a vertical space of 1/2 unit
height = 8.7
elseif setting.type == "flags" then
-- Checkboxes on 2 columns, with a vertical space of 1/2 unit
height = 5.2 + math.ceil(#setting.possible / 2) / 2
end
local formspec = "size[10," .. height .. ",true]" ..
"button[5," .. height - 0.7 .. ";2,1;btn_done;" .. fgettext("Save") .. "]" ..
"button[3," .. height - 0.7 .. ";2,1;btn_cancel;" .. fgettext("Cancel") .. "]" ..
"tablecolumns[color;text]" ..
"tableoptions[background=#00000000;highlight=#00000000;border=false]" ..
"table[0,0;10,3;info;"
@@ -459,21 +567,6 @@ local function create_change_setting_formspec(dialogdata)
formspec = formspec .. "," .. core.formspec_escape(comment_line) .. ","
end

if setting.type == "flags" then
formspec = formspec .. ",,"
.. "," .. fgettext("Please enter a comma seperated list of flags.") .. ","
.. "," .. fgettext("Possible values are: ")
.. core.formspec_escape(setting.possible:gsub(",", ", ")) .. ","
elseif setting.type == "noise_params" then
formspec = formspec .. ",,"
.. "," .. fgettext("Format:") .. ","
.. "," .. fgettext("<offset>, <scale>, (<spreadX>, <spreadY>, <spreadZ>),") .. ","
.. "," .. fgettext("<seed>, <octaves>, <persistence>, <lacunarity>") .. ","
elseif setting.type == "v3f" then
formspec = formspec .. ",,"
.. "," .. fgettext_ne("Format is 3 numbers separated by commas and inside brackets.") .. ","
end

formspec = formspec:sub(1, -2) -- remove trailing comma

formspec = formspec .. ";1]"
@@ -514,8 +607,91 @@ local function create_change_setting_formspec(dialogdata)
.. core.formspec_escape(current_value) .. "]"
.. "button[8,3.75;2,1;btn_browser_" .. setting.type .. ";" .. fgettext("Browse") .. "]"

elseif setting.type == "noise_params_2d" or setting.type == "noise_params_3d" then
local t = get_current_np_group(setting)
local dimension = 3
if setting.type == "noise_params_2d" then
dimension = 2
end

formspec = formspec
.. "label[0,2.5;(" .. dimension .. "D Noise)]"
.. "field[0.5,4;3.3,1;te_offset;Offset;" -- Offset
.. core.formspec_escape(t[1] or "") .. "]"
.. "field[3.8,4;3.3,1;te_scale;Scale;" -- Scale
.. core.formspec_escape(t[2] or "") .. "]"
.. "field[7.1,4;3.3,1;te_seed;Seed;" -- Seed
.. core.formspec_escape(t[6] or "") .. "]"
.. "label[0.5,4.7;Spread]" -- Spread
.. "field[2.0,5;2.8,1;te_spreadx;X;"
.. core.formspec_escape(t[3] or "") .. "]"
.. "field[4.8,5;2.8,1;te_spready;Y;"
.. core.formspec_escape(t[4] or "") .. "]"
.. "field[7.6,5;2.8,1;te_spreadz;Z;"
.. core.formspec_escape(t[5] or "") .. "]"
.. "field[0.5,6;3.3,1;te_octaves;Octaves;" -- Octaves
.. core.formspec_escape(t[7] or "") .. "]"
.. "field[3.8,6;3.3,1;te_persist;Persistance;" -- Persistance
.. core.formspec_escape(t[8] or "") .. "]"
.. "field[7.1,6;3.3,1;te_lacun;Lacunarity;" -- Lacunarity
.. core.formspec_escape(t[9] or "") .. "]"

local enabled_flags = flags_to_table(t[10])
local flags = {}
for _, name in ipairs(enabled_flags) do
-- Index by name, to avoid iterating over all enabled_flags for every possible flag.
flags[name] = true
end
-- Flags
formspec = formspec
.. "checkbox[0.5,6.5;cb_defaults;defaults;" -- defaults
.. tostring(flags["defaults"] == true) .. "]" -- to get false if nil
.. "checkbox[5,6.5;cb_eased;eased;" -- eased
.. tostring(flags["eased"] == true) .. "]"
.. "checkbox[5,7.0;cb_absvalue;absvalue;" -- absvalue
.. tostring(flags["absvalue"] == true) .. "]"

elseif setting.type == "v3f" then
local val = get_current_value(setting)
local v3f = {}
for line in val:gmatch("[+-]?[%d.-e]+") do -- All numeric characters
table.insert(v3f, line)
end

formspec = formspec
.. "field[0.5,4;3.3,1;te_x;X;" -- X
.. core.formspec_escape(v3f[1] or "") .. "]"
.. "field[3.8,4;3.3,1;te_y;Y;" -- Y
.. core.formspec_escape(v3f[2] or "") .. "]"
.. "field[7.1,4;3.3,1;te_z;Z;" -- Z
.. core.formspec_escape(v3f[3] or "") .. "]"

elseif setting.type == "flags" then
local enabled_flags = flags_to_table(get_current_value(setting))
local flags = {}
for _, name in ipairs(enabled_flags) do
-- Index by name, to avoid iterating over all enabled_flags for every possible flag.
flags[name] = true
end
local flags_count = #setting.possible
for i, name in ipairs(setting.possible) do
local x = 0.5
local y = 3.5 + i / 2
if i - 1 >= flags_count / 2 then -- 2nd column
x = 5
y = y - flags_count / 4
end
local checkbox_name = "cb_" .. name
local is_enabled = flags[name] == true -- to get false if nil
checkboxes[checkbox_name] = is_enabled
formspec = formspec .. "checkbox["
.. x .. "," .. y
.. ";" .. checkbox_name .. ";"
.. name .. ";" .. tostring(is_enabled) .. "]"
end

else
-- TODO: fancy input for float, int, flags, noise_params, v3f
-- TODO: fancy input for float, int
local width = 10
local text = get_current_value(setting)
if dialogdata.error_message then
@@ -535,8 +711,8 @@ local function create_change_setting_formspec(dialogdata)
end

local function handle_change_setting_buttons(this, fields)
local setting = settings[selected_setting]
if fields["btn_done"] or fields["key_enter"] then
local setting = settings[selected_setting]
if setting.type == "bool" then
local new_value = fields["dd_setting_value"]
-- Note: new_value is the actual (translated) value shown in the dropdown
@@ -579,17 +755,49 @@ local function handle_change_setting_buttons(this, fields)
core.settings:set(setting.name, new_value)

elseif setting.type == "flags" then
local new_value = fields["te_setting_value"]
for _,value in ipairs(new_value:split(",", true)) do
value = value:trim()
local possible = "," .. setting.possible .. ","
if not possible:find("," .. value .. ",", 0, true) then
this.data.error_message = fgettext_ne("\"$1\" is not a valid flag.", value)
this.data.entered_text = fields["te_setting_value"]
core.update_formspec(this:get_formspec())
return true
local values = {}
for _, name in ipairs(setting.possible) do
if checkboxes["cb_" .. name] then
table.insert(values, name)
end
end

checkboxes = {}

local new_value = table.concat(values, ", ")
core.settings:set(setting.name, new_value)

elseif setting.type == "noise_params_2d" or setting.type == "noise_params_3d" then
local np_flags = {}
for _, name in ipairs(setting.flags) do
if checkboxes["cb_" .. name] then
table.insert(np_flags, name)
end
end

checkboxes = {}

local new_value = {
offset = fields["te_offset"],
scale = fields["te_scale"],
spread = {
x = fields["te_spreadx"],
y = fields["te_spready"],
z = fields["te_spreadz"]
},
seed = fields["te_seed"],
octaves = fields["te_octaves"],
persistence = fields["te_persist"],
lacunarity = fields["te_lacun"],
flags = table.concat(np_flags, ", ")
}
core.settings:set_np_group(setting.name, new_value)

elseif setting.type == "v3f" then
local new_value = "("
.. fields["te_x"] .. ", "
.. fields["te_y"] .. ", "
.. fields["te_z"] .. ")"
core.settings:set(setting.name, new_value)

else
@@ -621,6 +829,16 @@ local function handle_change_setting_buttons(this, fields)
core.update_formspec(this:get_formspec())
end

if setting.type == "flags"
or setting.type == "noise_params_2d"
or setting.type == "noise_params_3d" then
for name, value in pairs(fields) do
if name:sub(1, 3) == "cb_" then
checkboxes[name] = value == "true"
end
end
end

return false
end

@@ -659,6 +877,10 @@ local function create_settings_formspec(tabview, name, tabdata)
elseif entry.type == "key" then
-- ignore key settings, since we have a special dialog for them

elseif entry.type == "noise_params_2d" or entry.type == "noise_params_3d" then
formspec = formspec .. "," .. (current_level + 1) .. "," .. core.formspec_escape(name) .. ","
.. core.formspec_escape(get_current_np_group_as_string(entry)) .. ","

else
formspec = formspec .. "," .. (current_level + 1) .. "," .. core.formspec_escape(name) .. ","
.. core.formspec_escape(get_current_value(entry)) .. ","
@@ -743,7 +965,12 @@ local function handle_settings_buttons(this, fields, tabname, tabdata)
if fields["btn_restore"] then
local setting = settings[selected_setting]
if setting and setting.type ~= "category" then
core.settings:set(setting.name, setting.default)
if setting.type == "noise_params_2d"
or setting.type == "noise_params_3d" then
core.settings:set_np_group(setting.name, setting.default_table)
else
core.settings:set(setting.name, setting.default)
end
core.settings:write()
core.update_formspec(this:get_formspec())
end
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