v3.1.0: improved logic for fairly placing enemies near entrances

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/RegularLevel.java

@@ -231,12 +231,24 @@ public abstract class RegularLevel extends Level {
 		Random.shuffle(stdRooms);
 		Iterator<Room> stdRoomIter = stdRooms.iterator();
 
-		//enemies cannot be within an 8-tile FOV of the entrance
+		//enemies cannot be within a 8-tile FOV or 8-tile open space walk from the entrance
-		// or a 6-tile open space distance from the entrance
 		boolean[] entranceFOV = new boolean[length()];
 		Point c = cellToPoint(entrance());
-		ShadowCaster.castShadow(c.x, c.y, width(), entranceFOV, losBlocking, 6);
+		ShadowCaster.castShadow(c.x, c.y, width(), entranceFOV, losBlocking, 8);
-		PathFinder.buildDistanceMap(entrance(), BArray.not(solid, null), 8);
+
+		boolean[] entranceWalkable = BArray.not(solid, null);
+
+		//doors within the entrance room are ignored for this walk, but doors on the edge are not
+		for (int y = roomEntrance.top+1; y < roomEntrance.bottom; y++){
+			for (int x = roomEntrance.left+1; x < roomEntrance.right; x++){
+				int cell = x + y*width();
+				if (passable[cell]){
+					entranceWalkable[cell] = true;
+				}
+			}
+		}
+
+		PathFinder.buildDistanceMap(entrance(), entranceWalkable, 8);
 
 		Mob mob = null;
 		while (mobsToSpawn > 0) {

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

@@ -104,6 +104,9 @@ public abstract class StandardRoom extends Room {
 	}
 
 	public int mobSpawnWeight(){
+		if (isEntrance()){
+			return 1; //entrance rooms don't have higher mob spawns even if they're larger
+		}
 		return sizeFactor();
 	}