v0.3.1a: cleaned up quickslot autotargeting:

- quickslots will now only autotarget enemies they can actually auto-aim for.
- cleaned up code for determining which items should use targeting

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

@@ -936,30 +936,32 @@ public class Hero extends Char {
 	}
 	
 	private void checkVisibleMobs() {
-		ArrayList<Mob> visible = new ArrayList<Mob>();
+		ArrayList<Mob> visible = new ArrayList<>();
 
 		boolean newMob = false;
 
-		Mob closest = null;
+		Mob target = null;
 		for (Mob m : Dungeon.level.mobs) {
 			if (Level.fieldOfView[ m.pos ] && m.hostile) {
-				visible.add( m );
+				visible.add(m);
 				if (!visibleEnemies.contains( m )) {
 					newMob = true;
 				}
 
-				if (closest == null){
-					closest = m;
-				} else if (distance(closest) > distance(m)) {
-					closest = m;
+				if (QuickSlotButton.autoAim(m) != -1){
+					if (target == null){
+						target = m;
+					} else if (distance(target) > distance(m)) {
+						target = m;
+					}
 				}
 			}
 		}
 
-		if (closest != null && (QuickSlotButton.lastTarget == null ||
+		if (target != null && (QuickSlotButton.lastTarget == null ||
 							!QuickSlotButton.lastTarget.isAlive() ||
 							!Dungeon.visible[QuickSlotButton.lastTarget.pos])){
-			QuickSlotButton.target(closest);
+			QuickSlotButton.target(target);
 		}
 		
 		if (newMob) {

src/com/shatteredpixel/shatteredpixeldungeon/items/Bomb.java

@@ -50,7 +50,10 @@ public class Bomb extends Item {
 	{
 		name = "bomb";
 		image = ItemSpriteSheet.BOMB;
+
 		defaultAction = AC_LIGHTTHROW;
+		usesTargeting = true;
+
 		stackable = true;
 	}
 

src/com/shatteredpixel/shatteredpixeldungeon/items/Honeypot.java

@@ -45,7 +45,10 @@ public class Honeypot extends Item {
 	{
 		name = "honeypot";
 		image = ItemSpriteSheet.HONEYPOT;
+
 		defaultAction = AC_THROW;
+		usesTargeting = true;
+
 		stackable = true;
 	}
 	

src/com/shatteredpixel/shatteredpixeldungeon/items/Item.java

@@ -66,6 +66,7 @@ public class Item implements Bundlable {
 	public static final String AC_THROW		= "THROW";
 	
 	public String defaultAction;
+	public boolean usesTargeting;
 	
 	protected String name = "smth";
 	public int image = 0;

src/com/shatteredpixel/shatteredpixeldungeon/items/artifacts/EtherealChains.java

@@ -55,6 +55,7 @@ public class EtherealChains extends Artifact {
 		charge = 5;
 
 		defaultAction = AC_CAST;
+		usesTargeting = true;
 	}
 
 	@Override

src/com/shatteredpixel/shatteredpixeldungeon/items/artifacts/LloydsBeacon.java

@@ -88,6 +88,7 @@ public class LloydsBeacon extends Artifact {
 		chargeCap = 3+level;
 
 		defaultAction = AC_ZAP;
+		usesTargeting = true;
 	}
 	
 	private static final String DEPTH	= "depth";

src/com/shatteredpixel/shatteredpixeldungeon/items/wands/Wand.java

@@ -78,6 +78,7 @@ public abstract class Wand extends Item {
 	
 	{
 		defaultAction = AC_ZAP;
+		usesTargeting = true;
 	}
 	
 	@Override

src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/melee/MagesStaff.java

@@ -61,6 +61,7 @@ public class MagesStaff extends MeleeWeapon {
 		image = ItemSpriteSheet.MAGES_STAFF;
 
 		defaultAction = AC_ZAP;
+		usesTargeting = true;
 
 		unique = true;
 		bones = false;

src/com/shatteredpixel/shatteredpixeldungeon/items/weapon/missiles/MissileWeapon.java

@@ -47,7 +47,9 @@ public class MissileWeapon extends Weapon {
 	{
 		stackable = true;
 		levelKnown = true;
+
 		defaultAction = AC_THROW;
+		usesTargeting = true;
 	}
 	
 	@Override

src/com/shatteredpixel/shatteredpixeldungeon/ui/QuickSlotButton.java

@@ -79,26 +79,17 @@ public class QuickSlotButton extends Button implements WndBag.Listener {
 			@Override
 			protected void onClick() {
 				if (targeting) {
-					//first try to directly target
-					if (new Ballistica(Dungeon.hero.pos, lastTarget.pos, Ballistica.PROJECTILE).collisionPos == lastTarget.pos) {
-						GameScene.handleCell(lastTarget.pos);
-						return;
-					}
+					int cell = autoAim(lastTarget);
 
-					//Otherwise pick nearby tiles to try and 'angle' the shot, auto-aim basically.
-					for (int i : Level.NEIGHBOURS9DIST2) {
-						if (new Ballistica(Dungeon.hero.pos, lastTarget.pos+i, Ballistica.PROJECTILE).collisionPos == lastTarget.pos){
-							GameScene.handleCell( lastTarget.pos+i );
-							return;
-						}
+					if (cell != -1){
+						GameScene.handleCell(cell);
+					} else {
+						//couldn't auto-aim, just target the position and hope for the best.
+						GameScene.handleCell( lastTarget.pos );
 					}
-
-					//couldn't find anything, just have it directly target
-					GameScene.handleCell( lastTarget.pos );
 				} else {
 					Item item = select(slotNum);
-					//FIXME: sloppy, should have a better way to decide if an item uses targeting.
-					if (item instanceof EquipableItem || item instanceof Wand)
+					if (item.usesTargeting)
 						useTargeting();
 					item.execute( Dungeon.hero );
 				}
@@ -194,6 +185,23 @@ public class QuickSlotButton extends Button implements WndBag.Listener {
 			}
 		}
 	}
+
+	public static int autoAim(Char target){
+		//first try to directly target
+		if (new Ballistica(Dungeon.hero.pos, target.pos, Ballistica.PROJECTILE).collisionPos == lastTarget.pos) {
+			return target.pos;
+		}
+
+		//Otherwise pick nearby tiles to try and 'angle' the shot, auto-aim basically.
+		for (int i : Level.NEIGHBOURS9DIST2) {
+			if (new Ballistica(Dungeon.hero.pos, lastTarget.pos+i, Ballistica.PROJECTILE).collisionPos == lastTarget.pos){
+				return target.pos+i;
+			}
+		}
+
+		//couldn't find a cell, give up.
+		return -1;
+	}
 	
 	public static void refresh() {
 		for (int i = 0; i < instance.length; i++) {