add monster images, fix level up calc

internal/actions/fight.go

@@ -32,19 +32,16 @@ func (r *FightResult) EndFightWithVictory(monster *monsters.Monster, user *users
 	r.FightUpdates["reward_gold"] = rewardGold
 	r.FightUpdates["reward_exp"] = rewardExp
 
+	newLevel, newStr, newDex, newExp := user.CalculateLevelUp(rewardExp)
+
 	r.UserUpdates = map[string]any{
 		"fight_id":  0,
 		"currently": "Exploring",
 		"gold":      user.Gold + rewardGold,
-		"exp":       user.Exp + rewardExp,
-	}
-
-	// Handle level up
-	newLevel, newStats := calculateLevelUp(user.Level, user.Exp+rewardExp, user.Strength, user.Dexterity)
-	if newLevel > user.Level {
-		r.UserUpdates["level"] = newLevel
-		r.UserUpdates["strength"] = newStats.Strength
-		r.UserUpdates["dexterity"] = newStats.Dexterity
+		"exp":       newExp,
+		"level":     newLevel,
+		"strength":  newStr,
+		"dexterity": newDex,
 	}
 
 	r.Ended = true
@@ -295,17 +292,11 @@ func calculateRewards(monster *monsters.Monster, user *users.User) (int, int) {
 	// More generous reward range: 90-100% of max instead of 83-100%
 	minExp := (monster.MaxExp * 9) / 10
 	maxExp := monster.MaxExp
-	exp := rand.Intn(maxExp-minExp+1) + minExp
-	if exp < 1 {
-		exp = 1 // Guaranteed minimum
-	}
+	exp := max(rand.Intn(maxExp-minExp+1)+minExp, 1)
 
 	minGold := (monster.MaxGold * 9) / 10
 	maxGold := monster.MaxGold
-	gold := rand.Intn(maxGold-minGold+1) + minGold
-	if gold < 1 {
-		gold = 1 // Guaranteed minimum
-	}
+	gold := max(rand.Intn(maxGold-minGold+1)+minGold, 1)
 
 	// Apply bonuses
 	expBonus := (user.ExpBonus * exp) / 100

internal/models/users/users.go

@@ -279,29 +279,42 @@ func (u *User) ExpNeededForNextLevel() int {
 	return exp.Calc(u.Level + 1)
 }
 
-func (u *User) GrantExp(expAmount int) {
-	u.Exp += expAmount
-	u.checkLevelUp()
+func (u *User) GrantExp(expAmount int) map[string]any {
+	newLevel, newStr, newDex, newExp := u.CalculateLevelUp(expAmount)
+
+	updates := map[string]any{
+		"exp": newExp,
+	}
+
+	// Only include level/stats if they actually changed
+	if newLevel > u.Level {
+		updates["level"] = newLevel
+		updates["strength"] = newStr
+		updates["dexterity"] = newDex
+	}
+
+	return updates
 }
 
-func (u *User) checkLevelUp() {
-	expNeeded := u.ExpNeededForNextLevel()
+func (u *User) CalculateLevelUp(expGain int) (newLevel, newStr, newDex, newExp int) {
+	level := u.Level
+	str := u.Strength
+	dex := u.Dexterity
+	totalExp := u.Exp + expGain
 
-	if u.Exp >= expNeeded {
-		// Level up
-		u.Level++
-		u.Strength++
-		u.Dexterity++
-
-		// Reset exp and carry over excess
-		excessExp := u.Exp - expNeeded
-		u.Exp = 0
-
-		// Recursive level up if enough excess exp
-		if excessExp > 0 {
-			u.GrantExp(excessExp)
+	for {
+		expNeeded := exp.Calc(level + 1)
+		if totalExp < expNeeded {
+			break
 		}
+
+		level++
+		str++
+		dex++
+		totalExp -= expNeeded
 	}
+
+	return level, str, dex, totalExp
 }
 
 func (u *User) ExpProgress() float64 {

templates/fight/fight.html

@@ -5,7 +5,7 @@
 	<h2>{monster.Name}</h2>
 	<h3>Level {monster.Level}</h3>
 
-	<img id="monster-image" src="/assets/images/monsters/{monster.Name}.png" alt="{monster.Name}" title="{monster.Name}">
+	<img id="monster-image" src="/assets/images/monsters/{monster.Name}.png" alt="{monster.Name}" title="{monster.Name}" onerror="this.onerror=null; this.src='/assets/images/monsters/Arcane Crystal.png';">
 </div>
 
 <div>{action}</div>