add HUD element scaling using HUD's size parameter

init.lua

@@ -20,6 +20,7 @@ mtimer = {
         visible = { key = 'mtimer:visible', default = 'true' },
         position = { key = 'mtimer:position', default = 'bl' },
         color = { key = 'mtimer:color', default = '#ffffff' },
+        hud_element_size = { key = 'mtimer:hud_element_size', default = '1' },
         timezone_offset = { key = 'mtimer:timezone_offset', default = '0' },
         ingame_time = {
             key = 'mtimer:ingame_time_format',

locale/mtimer.de.tr

@@ -8,6 +8,7 @@ Position=Ausrichtung
 Real-World Time Format=Realzeit-Format
 Host Time Format=Hostzeit-Format
 Reset Everything=Alles zurücksetzen
+HUD Element Size=Anzeigegröße
 Session Duration Format=Sitzungsdauer-Format
 Session Start Time Format=Sitzungsstartzeit-Format
 Timer Format=Timerformat

system/chat_command.lua

@@ -34,6 +34,7 @@ end
 --  ht          host time          d.host_time_format(name)
 --  st          start time         d.session_start_time_format(name)
 --  sd          session duration   d.session_duration_format(name)
+--  hs          HUD size           d.hud_element_size(name)
 --  tf          timer format       d.timer_format(name)
 -- -------------------------------------------------------------------
 --  help        Prints the help output showing the parameters
@@ -57,6 +58,7 @@ minetest.register_chatcommand('mtimer', {
         if action == 'ht' then d.host_time_format(name) end
         if action == 'st' then d.session_start_time_format(name) end
         if action == 'sd' then d.session_duration_format(name) end
+        if action == 'hs' then d.hud_element_size(name) end
         if action == 'tf' then d.timer_format(name) end
 
         if action == 'help' then
@@ -70,6 +72,7 @@ minetest.register_chatcommand('mtimer', {
                 command('ht')..S('Host Time Format'),
                 command('st')..S('Session Start Time Format'),
                 command('sd')..S('Session Duration Format'),
+                command('hs')..S('HUD Element Size'),
                 command('tf')..S('Timer Format'),
                 command('  ')..S('Open Main Menu')
             }

system/formspec/formspec_creation.lua

@@ -36,6 +36,7 @@ mtimer.dialog.main_menu = function (player_name)
             'button[0,0.25;3,0.5;set_visibility;'..S('Visibility')..']',
             'button[0,1;3,0.5;set_position;'..S('Position')..']',
             'button[0,1.75;3,0.5;set_color;'..S('Color')..']',
+            'button[0,2.5;3,0.5;hud_element_size;'..S('HUD Element Size')..']',
             'container_end[]',
             'container[3.25,0]',
             'label[0,0;'..S('Time Representation')..']',
@@ -232,6 +233,24 @@ mtimer.dialog.session_duration_format = function (player_name)
 end
 
 
+mtimer.dialog.hud_element_size = function (player_name)
+    local player = minetest.get_player_by_name(player_name)
+    local size = player:get_meta():get_string(m.meta.hud_element_size.key)
+
+    mtimer.show_formspec('mtimer:hud_element_size', {
+        title = S('HUD Element Size'),
+        show_to = player_name,
+        formspec = {
+            'field_close_on_enter[hud_element_size;false]',
+            'button[0,0;0.5,0.5;substract;'..S('-')..']',
+            'field[0.75,0;0.75,0.5;hud_element_size;;'..size..']',
+            'button[1.75,0;0.5,0.5;add;'..S('+')..']',
+            'label[0.025,0.75;'..S('Information')..']'
+        }
+    })
+end
+
+
 mtimer.dialog.timer_format = function (player_name)
     local timer_data = mtimer.get_timer_data(player_name)
 

system/on_joinplayer.lua

@@ -22,6 +22,7 @@ minetest.register_on_joinplayer(function(player)
         number = '0x000000',
         position = {x=0,y=0},
         alignment = {x=0,y=0},
+        size = {x=0,y=0},
         offset = {x=0,y=0}
     }))
 end)

system/on_receive_fields.lua

@@ -26,6 +26,7 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
         if fields.session_duration_format then
             d.session_duration_format(name)
         end
+        if fields.hud_element_size then d.hud_element_size(name) end
         if fields.timer_format then d.timer_format(name) end
     end
 
@@ -130,6 +131,22 @@ minetest.register_on_player_receive_fields(function(player, formname, fields)
     end
 
 
+    -- Set size (scaling) of the timer HUD element
+    if formname == 'mtimer:hud_element_size' then
+        local attr = m.meta.hud_element_size
+        local value = tonumber(fields.hud_element_size or attr.default)
+
+        if fields.add then value = value + 1 end
+        if fields.substract then value = value - 1 end
+        if value < 1 then value = 1 end
+
+        meta:set_string(attr.key, value)
+
+        if fields.default then meta:set_string(attr.key, attr.default) end
+        if not fields.quit then d.hud_element_size(name) end
+    end
+
+
     -- Set timer text
     if formname == 'mtimer:timer_format' then
         local attr = m.meta.timer_format

system/update_timer.lua

@@ -62,6 +62,7 @@ mtimer.update_timer = function (player_name)
     local text = mtimer.get_timer_data(player_name).formatted
     local number = meta:get_string(m.color.key):gsub('#', '0x')
     local orientation = get_hud_positions(meta:get_string(m.position.key))
+    local size = meta:get_string(m.hud_element_size.key)
 
     if meta:get_string(m.visible.key) == 'false' then text = '' end
 
@@ -69,5 +70,6 @@ mtimer.update_timer = function (player_name)
     player:hud_change(hud_id, 'number', number)
     player:hud_change(hud_id, 'position', orientation.position)
     player:hud_change(hud_id, 'alignment', orientation.alignment)
+    player:hud_change(hud_id, 'size', {x=size, y=size})
     player:hud_change(hud_id, 'offset', orientation.offset)
 end