Add viewing range GUI setting

diff --git a/builtin/mainmenu/tab_settings.lua b/builtin/mainmenu/tab_settings.lua
index e13fd967ffec58ae1e8d4806143e9488b2d2a42d..d39030b1d02d378d4e4cc247c73b180645871219 100644 (file)
--- a/builtin/mainmenu/tab_settings.lua
+++ b/builtin/mainmenu/tab_settings.lua
@@ -192,13 +192,40 @@ local function scrollbar_to_gui_scale(value)
        if (value <= 700) then
                return ((value / 700) * 1.0) + 0.25
        end
-       if (value <=1000) then
+       if (value <= 1000) then
                return ((value - 700) / 100) + 1.25
        end
 
        return 1
 end
 
+local function viewing_range_min_to_scrollbar()
+       local current_value_min = tonumber(core.setting_get("viewing_range_nodes_min"))
+
+       if (current_value_min == nil) then
+               return 0
+       end
+       return current_value_min * 2
+end
+
+local function viewing_range_max_to_scrollbar()
+       local current_value_max = tonumber(core.setting_get("viewing_range_nodes_max"))
+
+       if (current_value_max == nil) then
+               return 0
+       end
+       return current_value_max * 2
+end
+
+local function scrollbar_to_viewing_range(value)
+       value = tonumber(value)
+
+       if (value <= 1000) then
+               return value / 2
+       end
+       return 35
+end
+
 local function formspec(tabview, name, tabdata)
        local tab_string =
                "box[0,0;3.5,4.0;#999999]" ..
@@ -224,7 +251,7 @@ local function formspec(tabview, name, tabdata)
                                .. getMipmapSettingIndex() .. "]" ..
                "label[3.85,2.15;".. fgettext("Antialiasing:") .. "]"..
                "dropdown[3.85,2.6;3.85;dd_antialiasing;" .. antialiasing[1][1] .. ";"
-               .. getAntialiasingSettingIndex() .. "]" ..
+                               .. getAntialiasingSettingIndex() .. "]" ..
                "box[7.75,0;4,4;#999999]" ..
                "checkbox[8,0;cb_shaders;".. fgettext("Shaders") .. ";"
                                .. dump(core.setting_getbool("enable_shaders")) .. "]"
@@ -240,7 +267,7 @@ local function formspec(tabview, name, tabdata)
                "box[0,4.25;3.5,1.1;#999999]" ..
                "label[0.25,4.25;" .. fgettext("GUI scale factor") .. "]" ..
                "scrollbar[0.25,4.75;3,0.4;sb_gui_scaling;horizontal;" ..
-                gui_scale_to_scrollbar() .. "]" ..
+                               gui_scale_to_scrollbar() .. "]" ..
                "tooltip[sb_gui_scaling;" ..
                        fgettext("Scaling factor applied to menu elements: ") ..
                        dump(core.setting_get("gui_scaling")) .. "]"
@@ -281,7 +308,45 @@ local function formspec(tabview, name, tabdata)
                                "textlist[8.33,2.2;4,1;;#888888" .. fgettext("Waving Water") .. ";0;true]" ..
                                "textlist[8.33,2.7;4,1;;#888888" .. fgettext("Waving Leaves") .. ";0;true]" ..
                                "textlist[8.33,3.2;4,1;;#888888" .. fgettext("Waving Plants") .. ";0;true]"
+       end
+
+       local get_vrange_min = core.setting_get("viewing_range_nodes_min")
+       local get_vrange_max = core.setting_get("viewing_range_nodes_max")
+
+       if core.setting_getbool("viewing_range_auto") then
+               tab_string = tab_string ..
+                       "box[3.75,3.5;3.75,2;#999999]" ..
+                       "label[3.85,3.5;" .. fgettext("Viewing Range :") .. "]" ..
+                       "label[3.85,4;" .. fgettext("Min.") .. "]" ..
+                       "scrollbar[4.65,4.05;2.75,0.4;sb_viewing_range_min;horizontal;" ..
+                               viewing_range_min_to_scrollbar() .. "]" ..
+                       "tooltip[sb_viewing_range_min;" .. fgettext("Minimal Viewing Range: $1 nodes",
+                               get_vrange_min) .. "]" ..
+                       "checkbox[3.85,4.8;cb_vrange_auto_adjust;" .. fgettext("Auto-adjust") .. ";" ..
+                               dump(core.setting_getbool("viewing_range_auto")) .. "]"..
+                       "label[3.85,4.5;" .. fgettext("Max.") .. "]" ..
+                       "scrollbar[4.65,4.55;2.75,0.4;sb_viewing_range_max;horizontal;" ..
+                               viewing_range_max_to_scrollbar() .. "]" ..
+                       "tooltip[sb_viewing_range_max;" .. fgettext("Maximal Viewing Range: $1 nodes",
+                               get_vrange_max) .. "]"
+
+               if (get_vrange_min == nil and get_vrange_min > get_vrange_max) then
+                       core.setting_set("viewing_range_nodes_min", get_vrange_max)
                end
+       elseif (core.setting_getbool("viewing_range_auto") == nil or
+                       core.setting_getbool("viewing_range_auto") == false) then
+               tab_string = tab_string ..
+                       "box[3.75,3.5;3.75,1.5;#999999]" ..
+                       "label[3.85,3.5;" .. fgettext("Viewing Range :") .. "]" ..
+                       "label[3.85,4;" .. fgettext("Fixed") .. "]" ..
+                       "scrollbar[4.65,4.05;2.75,0.4;sb_viewing_range_fixed;horizontal;" ..
+                               viewing_range_min_to_scrollbar() .. "]" ..
+                       "tooltip[sb_viewing_range_fixed;" .. fgettext("Fixed Viewing Range: $1 nodes",
+                               get_vrange_min) .. "]" ..
+                       "checkbox[3.85,4.3;cb_vrange_auto_adjust;" .. fgettext("Auto-adjust") .. ";" ..
+                               dump(core.setting_getbool("viewing_range_auto")) .. "]"
+       end
+
        return tab_string
 end
 
@@ -311,7 +376,10 @@ local function handle_settings_buttons(this, fields, tabname, tabdata)
                core.setting_set("enable_node_highlighting", fields["cb_node_highlighting"])
                return true
        end
-
+       if fields["cb_vrange_auto_adjust"] then
+               core.setting_set("viewing_range_auto", fields["cb_vrange_auto_adjust"])
+               return true
+       end
        if fields["cb_shaders"] then
                if (core.setting_get("video_driver") == "direct3d8"
                                or core.setting_get("video_driver") == "direct3d9") then
@@ -353,6 +421,23 @@ local function handle_settings_buttons(this, fields, tabname, tabdata)
                        return true
                end
        end
+
+       for k, range in pairs({"min", "max", "fixed"}) do
+               if fields["sb_viewing_range_"..range] then
+                       local event = core.explode_scrollbar_event(fields["sb_viewing_range_"..range])
+                       local tosave = string.format("%d", scrollbar_to_viewing_range(event.value))
+
+                       if event.type == "CHG" and k < 3 then
+                               core.setting_set("viewing_range_nodes_"..range, tosave)
+                               return true
+                       elseif event.type == "CHG" and k == 3 then
+                               core.setting_set("viewing_range_nodes_min", tosave)
+                               core.setting_set("viewing_range_nodes_max", tosave)
+                               return true
+                       end
+               end
+       end
+
        if fields["btn_change_keys"] then
                core.show_keys_menu()
                return true