ダンジョンズ＆ドラゴンス第５版、武器の両手持ちのダメージに対応

lib/bcdice/game_system/DungeonsAndDragons5.rb

@@ -20,14 +20,18 @@ class DungeonsAndDragons5 < Base
         　t:敵のアーマークラス。>=を含めて省略可。
         　ファンブル／失敗／成功／クリティカル を自動判定。
         　例）AT AT>=10 AT+5>=18 AT-3>=16 ATA AT>=10A AT+3>=18A AT-3>=16 ATD AT>=10D AT+5>=18D AT-5>=16D
-
         ・能力値判定　AR[x][>=t][y]
         　攻撃ロールと同様。失敗／成功を自動判定。
         　例）AR AR>=10 AR+5>=18 AR-3>=16 ARA AR>=10A AR+3>=18A AR-3>=16 ARD AR>=10D AR+5>=18D AR-5>=16D
-
+        ・両手持ちのダメージ　2HnDx[m]
+        　n:ダイスの個数
+        　x:ダイスの面数
+        　m:+-修正。省略可。
+        　パラディンとファイターの武器の両手持ちによるダメージダイスの1,2の出目の振り直しを行います。
+        　例)2H3D6 2H1D10+3 2H2D8-1
       INFO_MESSAGE_TEXT
 
-      register_prefix('AT([+-]\d+)?(>=\d+)?[AD]?', 'AR([+-]\d+)?(>=\d+)?[AD]?')
+      register_prefix('AT([+-]\d+)?(>=\d+)?[AD]?', 'AR([+-]\d+)?(>=\d+)?[AD]?', '2H(\d+)D(\d+)([+-]\d+)?')
 
       def initialize(command)
         super(command)
@@ -36,7 +40,7 @@ def initialize(command)
       end
 
       def eval_game_system_specific_command(command)
-        attack_roll(command) || ability_roll(command)
+        attack_roll(command) || ability_roll(command) || twohands_damage_roll(command)
       end
 
       def number_with_sign_from_int(number)
@@ -49,6 +53,7 @@ def number_with_sign_from_int(number)
         end
       end
 
+      # 攻撃ロール
       def attack_roll(command)
         m = /^AT([-+]\d+)?(>=(\d+))?([AD]?)/.match(command)
         unless m
@@ -124,6 +129,7 @@ def attack_roll(command)
         end
       end
 
+      # 能力値ロール
       def ability_roll(command)
         m = /^AR([-+]\d+)?(>=(\d+))?([AD]?)/.match(command)
         unless m
@@ -191,6 +197,46 @@ def ability_roll(command)
           end
         end
       end
+
+      # 武器の両手持ちダメージ
+      def twohands_damage_roll(command)
+        m = /^2H(\d+)D(\d+)([+-]\d+)?/.match(command)
+        unless m
+          return nil
+        end
+
+        dice_count = m[1].to_i
+        dice_number = m[2].to_i
+        modify = m[3].to_i
+        mod_str = number_with_sign_from_int(modify)
+        output = ["(2H#{dice_count}D#{dice_number}#{mod_str})"]
+
+        dice = @randomizer.roll_barabara(dice_count, dice_number)
+        roll_dice = "[" + dice.join(",") + "]"
+        output.push("#{roll_dice}#{mod_str}")
+
+        ex_dice = []
+        new_dice = []
+        sum_dice = 0
+        dice.each do |num|
+          if num.to_i > 2
+            sum_dice += num.to_i
+            ex_dice.push(num)
+          else
+            one_die = @randomizer.roll_once(dice_number)
+            sum_dice += one_die.to_i
+            new_dice.push(one_die)
+          end
+        end
+        if new_dice.!empty?
+          output.push("[" + ex_dice.join(",") + "][" + new_dice.join(",") + "]#{mod_str}")
+        end
+        output.push((sum_dice + modify).to_s)
+
+        Result.new.tap do |r|
+          r.text = output.join(" ＞ ")
+        end
+      end
     end
   end
 end

test/data/DungeonsAndDragons5.toml

@@ -406,3 +406,67 @@ rands = [
   { sides = 20, value = 3 },
 ]
 
+
+[[ test ]]
+game_system = "DungeonsAndDragons5"
+input = "2H3D6 両手持ちダメージ、振り直しなし、修正なし"
+output = "(2H3D6) ＞ [5,4,3] ＞ 12"
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 3 },
+]
+
+[[ test ]]
+game_system = "DungeonsAndDragons5"
+input = "2H3D6+3 振り直しなし、+修正"
+output = "(2H3D6+3) ＞ [3,4,5]+3 ＞ 15"
+rands = [
+  { sides = 6, value = 3 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 5 },
+]
+
+[[ test ]]
+game_system = "DungeonsAndDragons5"
+input = "2H3D6-5 振り直しなし、-修正"
+output = "(2H3D6-5) ＞ [5,4,3]-5 ＞ 7"
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 3 },
+]
+
+[[ test ]]
+game_system = "DungeonsAndDragons5"
+input = "2H3D6 振り直しあり、修正なし"
+output = "(2H3D6) ＞ [5,4,2] ＞ [5,4][4] ＞ 13"
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 4 },
+]
+
+[[ test ]]
+game_system = "DungeonsAndDragons5"
+input = "2H3D6+5 振り直しあり、+修正"
+output = "(2H3D6+5) ＞ [5,2,4]+5 ＞ [5,4][4]+5 ＞ 18"
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 4 },
+]
+
+[[ test ]]
+game_system = "DungeonsAndDragons5"
+input = "2H3D6-3 振り直しあり、-修正"
+output = "(2H3D6-3) ＞ [5,4,2]-3 ＞ [5,4][6]-3 ＞ 12"
+rands = [
+  { sides = 6, value = 5 },
+  { sides = 6, value = 4 },
+  { sides = 6, value = 2 },
+  { sides = 6, value = 6 },
+]
+