v2.1.0: adjusted exp gain mechanics during ascension challenge:

- hero now gains 10xp per kill until level 30 if they would otherwise be over-levelled
- at level 30, reducing a curse stack grants 10 xp for recharge effects

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/buffs/AscensionChallenge.java

@@ -26,12 +26,12 @@ import com.shatteredpixel.shatteredpixeldungeon.Dungeon;
 import com.shatteredpixel.shatteredpixeldungeon.Statistics;
 import com.shatteredpixel.shatteredpixeldungeon.actors.Actor;
 import com.shatteredpixel.shatteredpixeldungeon.actors.Char;
+import com.shatteredpixel.shatteredpixeldungeon.actors.hero.Hero;
 import com.shatteredpixel.shatteredpixeldungeon.actors.hero.abilities.Ratmogrify;
 import com.shatteredpixel.shatteredpixeldungeon.actors.mobs.*;
 import com.shatteredpixel.shatteredpixeldungeon.actors.mobs.npcs.Shopkeeper;
 import com.shatteredpixel.shatteredpixeldungeon.items.Amulet;
 import com.shatteredpixel.shatteredpixeldungeon.items.artifacts.DriedRose;
-import com.shatteredpixel.shatteredpixeldungeon.messages.Languages;
 import com.shatteredpixel.shatteredpixeldungeon.messages.Messages;
 import com.shatteredpixel.shatteredpixeldungeon.ui.BuffIndicator;
 import com.shatteredpixel.shatteredpixeldungeon.utils.GLog;
@@ -163,11 +163,18 @@ public class AscensionChallenge extends Buff {
 		if (chal.stacks < 8f && (int)(chal.stacks/2) != (int)(oldStacks/2f)){
 			GLog.p(Messages.get(AscensionChallenge.class, "weaken"));
 		}
+
+		//if the hero is at the max level, grant them 10 effective xp per stack cleared
+		// for the purposes of on-xp gain effects
+		if (oldStacks > chal.stacks && Dungeon.hero.lvl == Hero.MAX_LEVEL){
+			Dungeon.hero.earnExp(Math.round(10*(oldStacks - chal.stacks)), chal.getClass());
+		}
+
 		BuffIndicator.refreshHero();
 	}
 
-	//used for internal calculations like corruption, not actual exp gain
-	public static int AscensionExp(Mob m){
+	public static int AscensionCorruptResist(Mob m){
+		//default to just using their EXP value if no ascent challenge is happening
 		if (Dungeon.hero.buff(AscensionChallenge.class) == null){
 			return m.EXP;
 		}

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/hero/Hero.java

@@ -1672,8 +1672,11 @@ public class Hero extends Char {
 	}
 	
 	public void earnExp( int exp, Class source ) {
-		
-		this.exp += exp;
+
+		//xp granted by ascension challenge is only for on-exp gain effects
+		if (source != AscensionChallenge.class) {
+			this.exp += exp;
+		}
 		float percent = exp/(float)maxExp();
 
 		EtherealChains.chainsRecharge chains = buff(EtherealChains.chainsRecharge.class);

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/actors/mobs/Mob.java

@@ -761,6 +761,15 @@ public abstract class Mob extends Char {
 				AscensionChallenge.processEnemyKill(this);
 				
 				int exp = Dungeon.hero.lvl <= maxLvl ? EXP : 0;
+
+				//during ascent, under-levelled enemies grant 10 xp each until level 30
+				// after this enemy kills which reduce the amulet curse still grant 10 effective xp
+				// for the purposes of on-exp effects, see AscensionChallenge.processEnemyKill
+				if (Dungeon.hero.buff(AscensionChallenge.class) != null &&
+						exp == 0 && maxLvl > 0 && EXP > 0 && Dungeon.hero.lvl < Hero.MAX_LEVEL){
+					exp = Math.round(10 * spawningWeight());
+				}
+
 				if (exp > 0) {
 					Dungeon.hero.sprite.showStatus(CharSprite.POSITIVE, Messages.get(this, "exp", exp));
 				}

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/wands/WandOfCorruption.java

@@ -150,10 +150,10 @@ public class WandOfCorruption extends Wand {
 				enemyResist = (1f + Dungeon.scalingDepth()/4f) / 5f;
 			} else if (ch instanceof Swarm){
 				//child swarms don't give exp, so we force this here.
-				enemyResist = 1 + AscensionChallenge.AscensionExp(enemy);
+				enemyResist = 1 + AscensionChallenge.AscensionCorruptResist(enemy);
 				if (enemyResist == 1) enemyResist = 1 + 3;
 			} else {
-				enemyResist = 1 + AscensionChallenge.AscensionExp(enemy);
+				enemyResist = 1 + AscensionChallenge.AscensionCorruptResist(enemy);
 			}
 			
 			//100% health: 5x resist   75%: 3.25x resist   50%: 2x resist   25%: 1.25x resist