Show max-roll effect value in totals

README.md

@@ -78,6 +78,10 @@ All additive bonuses are evaluated against the current total. For example, if th
 
 Each item effect row displays its actual current DPS contribution and the marginal DPS gain from the next `+1%` upgrade.
 
+The effect totals panel also shows what adding one more maximum-roll effect would do right now. For example, if the build already has `+100% melee damage`, another max `+50% melee damage` changes the multiplier from `2.0x` to `2.5x`, so it displays `+25% DPS`.
+
+Defensive effect totals use an estimated survivability value based on health, block chance, health regen, and lifesteal. This is meant for comparison between effects, not as an exact combat simulator.
+
 ## Strategy profile
 
 The first version includes an adjustable strategy profile:

app.js

@@ -157,6 +157,7 @@ function updateAnalysis() {
   const profile = PROFILES[state.profile];
   const totals = calculateTotals();
   const dps = calculateDps(totals, state.combatStyle);
+  const survivability = calculateSurvivability(totals);
   const pieceScores = state.pieces.map((piece) => scorePiece(piece, profile, totals));
 
   $("#totalDamage").textContent = fmt(totals.baseDamage);
@@ -169,7 +170,7 @@ function updateAnalysis() {
   });
   updateEffectImpactHints(totals, dps);
 
-  renderEffectTotals(totals.effects);
+  renderEffectTotals(totals, dps, survivability);
   renderUpgrades(profile, totals, dps);
   renderSacrifices(pieceScores);
   saveDraft();
@@ -202,6 +203,16 @@ function calculateDps(totals, combatStyle = "melee") {
   return baseDamage * globalDamage * styleDamage * attackSpeed * doubleHit * crit * cooldown;
 }
 
+function calculateSurvivability(totals) {
+  const effects = totals.effects;
+  const baseHealth = Math.max(0, totals.baseHealth);
+  const health = baseHealth * (1 + effects.health / 100);
+  const blockMultiplier = 1 / Math.max(0.05, 1 - effects.blockChance / 100);
+  const regenMultiplier = 1 + effects.healthRegen / 100;
+  const lifestealMultiplier = 1 + effects.lifesteal / 100;
+  return health * blockMultiplier * regenMultiplier * lifestealMultiplier;
+}
+
 function getStyleDamageBonus(effects, combatStyle) {
   if (combatStyle === "ranged") return effects.rangedDamage;
   if (combatStyle === "skill") return effects.skillDamage;
@@ -219,6 +230,16 @@ function cloneTotalsWithEffectDelta(totals, effectType, delta) {
   };
 }
 
+function describeMaxRollGain(effect, totals, currentDps, currentSurvivability) {
+  const withMaxRoll = cloneTotalsWithEffectDelta(totals, effect.id, effect.cap);
+  const dpsGain = percentChange(currentDps, calculateDps(withMaxRoll, state.combatStyle));
+  const survivabilityGain = percentChange(currentSurvivability, calculateSurvivability(withMaxRoll));
+  const parts = [];
+  if (Math.abs(dpsGain) >= 0.05) parts.push(`+${fmt(dpsGain)}% DPS`);
+  if (Math.abs(survivabilityGain) >= 0.05) parts.push(`+${fmt(survivabilityGain)}% survivability`);
+  return parts.length ? parts.join(" / ") : "no effect for current style";
+}
+
 function percentChange(from, to) {
   if (from <= 0) return to > 0 ? 100 : 0;
   return ((to / from) - 1) * 100;
@@ -253,9 +274,13 @@ function scorePiece(piece, profile, totals) {
   return { piece, score, reasons: [...new Set(reasons)] };
 }
 
-function renderEffectTotals(effectTotals) {
+function renderEffectTotals(totals, currentDps, currentSurvivability) {
   $("#effectTotals").innerHTML = EFFECTS.map((effect) => `
-    <div class="effect-pill"><span>${effect.label}</span><strong>${fmt(effectTotals[effect.id])}%</strong></div>
+    <div class="effect-pill">
+      <span>${effect.label}</span>
+      <strong>${fmt(totals.effects[effect.id])}%</strong>
+      <small>Max roll +${effect.cap}%: ${describeMaxRollGain(effect, totals, currentDps, currentSurvivability)}</small>
+    </div>
   `).join("");
 }
 

styles.css

@@ -152,18 +152,23 @@ h3 { margin-bottom: 0; }
 
 .effect-totals {
   display: grid;
-  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
+  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
   gap: 0.75rem;
 }
 .effect-pill {
-  display: flex;
-  justify-content: space-between;
+  display: grid;
+  grid-template-columns: 1fr auto;
   gap: 1rem;
+  align-items: start;
   border: 1px solid var(--border);
-  border-radius: 999px;
-  padding: 0.55rem 0.8rem;
+  border-radius: 1rem;
+  padding: 0.75rem 0.85rem;
   background: rgba(255, 255, 255, 0.05);
 }
+.effect-pill small {
+  grid-column: 1 / -1;
+  color: var(--muted);
+}
 
 .section-heading { margin: 1.5rem 0 1rem; }
 .section-heading p { color: var(--muted); }