.

exp_commands/module/commands/types.lua

@@ -25,6 +25,8 @@ local Commands = require("modules/exp_commands")
 local add, parse = Commands.add_data_type, Commands.parse_input
 local valid, invalid = Commands.status.success, Commands.status.invalid_input
 
+local Roles = require("modules.exp_legacy.expcore.roles") --- @dep expcore.roles
+
 local types = {} --- @class Commands._types
 
 --- A boolean value where true is one of: yes, y, true, 1
@@ -229,4 +231,29 @@ types.color =
         end
     end)
 
+--- A player who has joined the game at least once, with a lower role
+types.lower_role_player =
+add("player", function(input, player)
+    local player_i = game.get_player(input)
+    local player = game.get_player(player)
+
+    if Roles.get_player_highest_role(player_i).index <= Roles.get_player_highest_role(player).index then
+        return invalid{ "exp-commands-parse.player", input }
+    else
+        return valid(player)
+    end
+end)
+
+--- A role that is lower than given user
+types.lower_role =
+    add("role", function(input)
+        local player = game.get_player(input)
+
+        if Roles.config.roles[input] and (Roles.config.roles[input].index >= Roles.get_player_highest_role(player).index) then
+            return valid(player)
+        else
+            return invalid{ "exp-commands-parse.role", input }
+        end
+    end)
+
 return types

exp_commands/module/locale/en.cfg

@@ -27,6 +27,7 @@ force=Invalid Force Name.
 surface=Invalid Surface Name.
 planet=Invalid Planet Name.
 color=Invalid Color Name.
+role=Invalid Role Name.
 
 [exp-commands-authorities]
 character-only=This command can not be used in remote view.

exp_commands/module/locale/zh-CN.cfg

@@ -27,6 +27,7 @@ force=勢力名稱錯誤。
 surface=地表名稱錯誤。
 planet=星球名稱錯誤。
 color=顏色名稱錯誤。
+role=權限組名稱錯誤。
 
 [exp-commands-authorities]
 character-only=該命令不能在遠端視圖中使用。

exp_commands/module/locale/zh-TW.cfg

@@ -27,6 +27,7 @@ force=勢力名稱錯誤。
 surface=地表名稱錯誤。
 planet=星球名稱錯誤。
 color=顏色名稱錯誤。
+role=權限組名稱錯誤。
 
 [exp-commands-authorities]
 character-only=該命令不能在遠端視圖中使用。