v1.1.0: added teleport functionality for non-regular (i.e. boss) levels

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/armor/curses/Displacement.java

@@ -36,7 +36,7 @@ public class Displacement extends Armor.Glyph {
 	public int proc(Armor armor, Char attacker, Char defender, int damage ) {
 
 		if (defender == Dungeon.hero && Random.Int(20) == 0){
-			ScrollOfTeleportation.teleportHero(Dungeon.hero);
+			ScrollOfTeleportation.teleportChar(Dungeon.hero);
 			return 0;
 		}
 

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

@@ -204,14 +204,14 @@ public class LloydsBeacon extends Artifact {
 			updateQuickslot();
 
 			if (Actor.findChar(target) == curUser){
-				ScrollOfTeleportation.teleportHero(curUser);
+				ScrollOfTeleportation.teleportChar(curUser);
 				curUser.spendAndNext(1f);
 			} else {
 				final Ballistica bolt = new Ballistica( curUser.pos, target, Ballistica.MAGIC_BOLT );
 				final Char ch = Actor.findChar(bolt.collisionPos);
 
 				if (ch == curUser){
-					ScrollOfTeleportation.teleportHero(curUser);
+					ScrollOfTeleportation.teleportChar(curUser);
 					curUser.spendAndNext( 1f );
 				} else {
 					Sample.INSTANCE.play( Assets.Sounds.ZAP );

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/scrolls/ScrollOfTeleportation.java

@@ -56,7 +56,9 @@ public class ScrollOfTeleportation extends Scroll {
 
 		Sample.INSTANCE.play( Assets.Sounds.READ );
 		
-		teleportPreferringUnseen( curUser );
+		if (teleportPreferringUnseen( curUser )){
+			readAnimation();
+		}
 		identify();
 
 		if (!Dungeon.bossLevel()) {
@@ -91,9 +93,8 @@ public class ScrollOfTeleportation extends Scroll {
 	
 	public static boolean teleportChar( Char ch ) {
 
-		if (Dungeon.bossLevel()){
-			GLog.w( Messages.get(ScrollOfTeleportation.class, "no_tele") );
-			return false;
+		if (!(Dungeon.level instanceof RegularLevel)){
+			return teleportInNonRegularLevel( ch, false );
 		}
 		
 		int count = 20;
@@ -127,11 +128,10 @@ public class ScrollOfTeleportation extends Scroll {
 		}
 	}
 	
-	public static void teleportPreferringUnseen( Hero hero ){
+	public static boolean teleportPreferringUnseen( Hero hero ){
 		
-		if (Dungeon.bossLevel() || !(Dungeon.level instanceof RegularLevel)){
-			teleportHero( hero );
-			return;
+		if (!(Dungeon.level instanceof RegularLevel)){
+			return teleportInNonRegularLevel( hero, true );
 		}
 		
 		RegularLevel level = (RegularLevel) Dungeon.level;
@@ -163,7 +163,7 @@ public class ScrollOfTeleportation extends Scroll {
 		}
 		
 		if (candidates.isEmpty()){
-			teleportHero( hero );
+			return teleportChar( hero );
 		} else {
 			int pos = Random.element(candidates);
 			boolean secretDoor = false;
@@ -195,10 +195,69 @@ public class ScrollOfTeleportation extends Scroll {
 			}
 			Dungeon.observe();
 			GameScene.updateFog();
+			return true;
 		}
 		
 	}
 
+	//teleports to a random pathable location on the floor
+	//prefers not seen(optional) > not visible > visible
+	public static boolean teleportInNonRegularLevel(Char ch, boolean preferNotSeen ){
+
+		ArrayList<Integer> visibleValid = new ArrayList<>();
+		ArrayList<Integer> notVisibleValid = new ArrayList<>();
+		ArrayList<Integer> notSeenValid = new ArrayList<>();
+
+		boolean[] passable = Dungeon.level.passable;
+
+		if (Char.hasProp(ch, Char.Property.LARGE)){
+			passable = BArray.or(passable, Dungeon.level.openSpace, null);
+		}
+
+		PathFinder.buildDistanceMap(ch.pos, passable);
+
+		for (int i = 0; i < Dungeon.level.length(); i++){
+			if (PathFinder.distance[i] < Integer.MAX_VALUE
+					&& !Dungeon.level.secret[i]
+					&& Actor.findChar(i) == null){
+				if (preferNotSeen && !Dungeon.level.visited[i]){
+					notSeenValid.add(i);
+				} else if (Dungeon.level.heroFOV[i]){
+					visibleValid.add(i);
+				} else {
+					notVisibleValid.add(i);
+				}
+			}
+		}
+
+		int pos;
+
+		if (!notSeenValid.isEmpty()){
+			pos = Random.element(notSeenValid);
+		} else if (!notVisibleValid.isEmpty()){
+			pos = Random.element(notVisibleValid);
+		} else if (!visibleValid.isEmpty()){
+			pos = Random.element(visibleValid);
+		} else {
+			GLog.w( Messages.get(ScrollOfTeleportation.class, "no_tele") );
+			return false;
+		}
+
+		appear( ch, pos );
+		Dungeon.level.occupyCell( ch );
+
+		if (ch == Dungeon.hero) {
+			GLog.i( Messages.get(ScrollOfTeleportation.class, "tele") );
+
+			Dungeon.observe();
+			GameScene.updateFog();
+			Dungeon.hero.interrupt();
+		}
+
+		return true;
+
+	}
+
 	public static void appear( Char ch, int pos ) {
 
 		ch.sprite.interruptMotion();

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/spells/PhaseShift.java

@@ -43,7 +43,8 @@ public class PhaseShift extends TargetedSpell {
 		final Char ch = Actor.findChar(bolt.collisionPos);
 		
 		if (ch == hero){
-			ScrollOfTeleportation.teleportHero(curUser);
+			//TODO probably want this to not work on the hero for balance reasons?
+			ScrollOfTeleportation.teleportChar(curUser);
 		} else if (ch != null) {
 			int count = 20;
 			int pos;

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/plants/Fadeleaf.java

@@ -70,7 +70,7 @@ public class Fadeleaf extends Plant {
 				Game.switchScene( InterlevelScene.class );
 				
 			} else {
-				ScrollOfTeleportation.teleportHero((Hero) ch);
+				ScrollOfTeleportation.teleportChar((Hero) ch);
 			}
 			
 		} else if (ch instanceof Mob && !ch.properties().contains(Char.Property.IMMOVABLE)) {