v3.1.0: small levelgen sewers tweaks:

- fixed tutorial not working with new entrances
- improved internal layout in ring rooms a bit

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/RingRoom.java

@@ -57,10 +57,24 @@ public class RingRoom extends StandardRoom {
 			Painter.fill(level, this, passageWidth+2, centerDecoTiles());
 			Point center = center();
 			int xDir = 0, yDir = 0;
+
+			//prefer to make the door further away if possible
 			if (Random.Int(2) == 0) {
-				xDir = Random.Int(2) == 0 ? 1 : -1;
+				if (center.x < (left+right)/2f){
+					xDir = 1;
+				} else if (center.x > (left+right)/2f){
+					xDir = -1;
+				} else {
+					xDir = Random.Int(2) == 0 ? 1 : -1;
+				}
 			} else {
-				yDir = Random.Int(2) == 0 ? 1 : -1;
+				if (center.y < (top+bottom)/2f){
+					yDir = 1;
+				} else if (center.y > (top+bottom)/2f){
+					yDir = -1;
+				} else {
+					yDir = Random.Int(2) == 0 ? 1 : -1;
+				}
 			}
 
 			Painter.set(level, center, Terrain.EMPTY_SP);

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/entrance/EntranceRoom.java

@@ -95,6 +95,11 @@ public class EntranceRoom extends StandardRoom {
 			level.transitions.add(new LevelTransition(level, entrance, LevelTransition.Type.REGULAR_ENTRANCE));
 		}
 
+		placeEarlyGuidePages(level, this);
+
+	}
+
+	public static void placeEarlyGuidePages(Level level, Room r){
 		//use a separate generator here so meta progression doesn't affect levelgen
 		Random.pushGenerator();
 
@@ -104,9 +109,9 @@ public class EntranceRoom extends StandardRoom {
 			int pos;
 			do {
 				//can't be on bottom row of tiles
-				pos = level.pointToCell(new Point( Random.IntRange( left + 1, right - 1 ),
-						Random.IntRange( top + 1, bottom - 2 )));
-			} while (pos == level.entrance() || level.findMob(level.entrance()) != null);
+				pos = level.pointToCell(new Point( Random.IntRange( r.left + 1, r.right - 1 ),
+						Random.IntRange( r.top + 1, r.bottom - 2 )));
+			} while (pos == level.entrance() || level.map[pos] == Terrain.REGION_DECO);
 			level.drop( new Guidebook(), pos );
 			Document.ADVENTURERS_GUIDE.deletePage(Document.GUIDE_INTRO);
 		}
@@ -116,16 +121,15 @@ public class EntranceRoom extends StandardRoom {
 			int pos;
 			do {
 				//can't be on bottom row of tiles
-				pos = level.pointToCell(new Point( Random.IntRange( left + 1, right - 1 ),
-						Random.IntRange( top + 1, bottom - 2 )));
-			} while (pos == level.entrance() || level.findMob(level.entrance()) != null);
+				pos = level.pointToCell(new Point( Random.IntRange( r.left + 1, r.right - 1 ),
+						Random.IntRange( r.top + 1, r.bottom - 2 )));
+			} while (pos == level.entrance() || level.map[pos] == Terrain.REGION_DECO);
 			GuidePage p = new GuidePage();
 			p.page(Document.GUIDE_SEARCHING);
 			level.drop( p, pos );
 		}
 
 		Random.popGenerator();
-
 	}
 
 	private static ArrayList<Class<?extends StandardRoom>> rooms = new ArrayList<>();

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/entrance/RegionDecoPatchEntranceRoom.java

@@ -100,6 +100,9 @@ public class RegionDecoPatchEntranceRoom extends RegionDecoPatchRoom {
 		} else {
 			level.transitions.add(new LevelTransition(level, entrance, LevelTransition.Type.REGULAR_ENTRANCE));
 		}
+
+		EntranceRoom.placeEarlyGuidePages(level, this);
+
 	}
 
 }

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/rooms/standard/entrance/WaterBridgeEntranceRoom.java

@@ -86,5 +86,8 @@ public class WaterBridgeEntranceRoom extends WaterBridgeRoom {
 		} else {
 			level.transitions.add(new LevelTransition(level, entrance, LevelTransition.Type.REGULAR_ENTRANCE));
 		}
+
+		EntranceRoom.placeEarlyGuidePages(level, this);
+
 	}
 }