v2.0.0: implemented a weapon ability for the whip

core/src/main/assets/messages/items/items.properties

@@ -1654,6 +1654,8 @@ items.weapon.melee.warhammer.desc=Few creatures can withstand the crushing blow
 
 items.weapon.melee.whip.name=whip
 items.weapon.melee.whip.stats_desc=This weapon has tremendous reach.
+items.weapon.melee.whip.ability_name=lash
+items.weapon.melee.whip.ability_desc=The Duelist can _lash_ all enemies around her with a whip. This ability performs a normal attack against all enemies currently within attack range.
 items.weapon.melee.whip.desc=While the barbed length of rope at the end of this weapon deals poor damage, its reach cannot be matched.
 
 items.weapon.melee.wornshortsword.name=worn shortsword

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/weapon/melee/Whip.java

@@ -22,7 +22,19 @@
 package com.shatteredpixel.shatteredpixeldungeon.items.weapon.melee;
 
 import com.shatteredpixel.shatteredpixeldungeon.Assets;
+import com.shatteredpixel.shatteredpixeldungeon.Dungeon;
+import com.shatteredpixel.shatteredpixeldungeon.actors.Actor;
+import com.shatteredpixel.shatteredpixeldungeon.actors.Char;
+import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.Buff;
+import com.shatteredpixel.shatteredpixeldungeon.actors.buffs.Vulnerable;
+import com.shatteredpixel.shatteredpixeldungeon.actors.hero.Hero;
+import com.shatteredpixel.shatteredpixeldungeon.messages.Messages;
 import com.shatteredpixel.shatteredpixeldungeon.sprites.ItemSpriteSheet;
+import com.shatteredpixel.shatteredpixeldungeon.utils.GLog;
+import com.watabou.noosa.audio.Sample;
+import com.watabou.utils.Callback;
+
+import java.util.ArrayList;
 
 public class Whip extends MeleeWeapon {
 
@@ -41,4 +53,36 @@ public class Whip extends MeleeWeapon {
 				lvl*(tier);     //+3 per level, down from +4
 	}
 
+	@Override
+	protected void duelistAbility(Hero hero, Integer target) {
+
+		ArrayList<Char> targets = new ArrayList<>();
+
+		for (Char ch : Actor.chars()){
+			if (ch.alignment == Char.Alignment.ENEMY
+					&& !hero.isCharmedBy(ch)
+					&& Dungeon.level.heroFOV[ch.pos]
+					&& hero.canAttack(ch)){
+				targets.add(ch);
+			}
+		}
+
+		if (targets.isEmpty()) {
+			GLog.w(Messages.get(this, "ability_no_target"));
+			return;
+		}
+
+		throwSound();
+		hero.sprite.attack(hero.pos, new Callback() {
+			@Override
+			public void call() {
+				for (Char ch : targets) {
+					hero.attack(ch);
+				}
+				hero.spendAndNext(hero.attackDelay());
+				onAbilityUsed(hero);
+			}
+		});
+	}
+
 }