First working version

Roll.lua

@@ -0,0 +1,85 @@
+-- AltSystem Roll Logic
+-- Handles /roll 20, captures the result, and applies modifiers.
+
+AltSystem = AltSystem or {}
+
+local pendingRollType = nil -- "attack" or "defense"
+
+-- Perform a roll: triggers the WoW native /roll 20 command
+function AltSystem:PerformRoll(rollType)
+    pendingRollType = rollType
+    RandomRoll(1, 20)
+end
+
+-- Listen for the system message that contains the roll result
+local rollListener = CreateFrame("Frame")
+rollListener:RegisterEvent("CHAT_MSG_SYSTEM")
+
+rollListener:SetScript("OnEvent", function(self, event, message)
+    if not pendingRollType then return end
+
+    -- Match the roll result pattern: "PlayerName rolls X (1-20)"
+    local roll = message:match("rolls (%d+) %(1%-20%)")
+    if not roll then return end
+
+    local rollValue = tonumber(roll)
+    local rollType = pendingRollType
+    pendingRollType = nil
+
+    AltSystem:CalculateAndDisplayResult(rollType, rollValue)
+end)
+
+-- Calculate the final result based on the roll type and selected modifiers
+function AltSystem:CalculateAndDisplayResult(rollType, rollValue)
+    local state = AltSystem.State
+    local skill = AltSystem.Data.Skills[state.selectedSkillIndex]
+    local item = AltSystem.Data.Items[state.selectedItemIndex]
+
+    local skillMod = skill and skill.modifier or 0
+    local itemMod = item and item.modifier or 0
+
+    local total = rollValue
+    local breakdown = "Roll: " .. rollValue
+
+    if rollType == "attack" then
+        -- Attack Roll = roll + skill modifier + item modifier
+        total = rollValue + skillMod + itemMod
+
+        breakdown = breakdown .. "\nSkill: " .. FormatModifier(skillMod)
+        if itemMod ~= 0 then
+            breakdown = breakdown .. "  |  Item: " .. FormatModifier(itemMod)
+        end
+        breakdown = breakdown .. "\n|cffffd100Attack Total: " .. total .. "|r"
+
+    elseif rollType == "defense" then
+        -- Defense Roll = roll + skill modifier + item modifier + defense modifier + shield modifier
+        local defense = AltSystem.Data.Defenses[state.selectedDefenseIndex]
+        local defenseMod = defense and defense.modifier or 0
+        local shieldMod = state.shieldEnabled and AltSystem.Data.ShieldModifier or 0
+
+        total = rollValue + skillMod + itemMod + defenseMod + shieldMod
+
+        breakdown = breakdown .. "\nSkill: " .. FormatModifier(skillMod)
+        if itemMod ~= 0 then
+            breakdown = breakdown .. "  |  Item: " .. FormatModifier(itemMod)
+        end
+        breakdown = breakdown .. "\nDefense: " .. FormatModifier(defenseMod)
+        if shieldMod ~= 0 then
+            breakdown = breakdown .. "  |  Shield: " .. FormatModifier(shieldMod)
+        end
+        breakdown = breakdown .. "\n|cff00ccffDefense Total: " .. total .. "|r"
+    end
+
+    if AltSystem.ResultText then
+        AltSystem.ResultText:SetText(breakdown)
+    end
+end
+
+-- Format a modifier value with sign
+function FormatModifier(value)
+    if value >= 0 then
+        return "+" .. value
+    else
+        return tostring(value)
+    end
+end