fix #237 + #227

src/main/java/com/pokegoapi/api/inventory/EggIncubator.java

@@ -31,8 +31,6 @@
 public class EggIncubator {
 	private final EggIncubatorOuterClass.EggIncubator proto;
 	private final PokemonGo pgo;
-	@Getter
-	private boolean inUse = false;
 
 	/**
 	 * Create new EggIncubator with given proto.
@@ -43,7 +41,6 @@ public class EggIncubator {
 	public EggIncubator(PokemonGo pgo, EggIncubatorOuterClass.EggIncubator proto) {
 		this.pgo = pgo;
 		this.proto = proto;
-		this.inUse = proto.getPokemonId() != 0;
 	}
 
 	/**
@@ -83,8 +80,6 @@ public UseItemEggIncubatorResponse.Result hatchEgg(EggPokemon egg)
 
 		pgo.getInventories().updateInventories(true);
 
-		this.inUse = true;
-
 		return response.getResult();
 	}
 
@@ -123,4 +118,13 @@ public double getKmTarget() {
 	public double getKmWalked() {
 		return proto.getStartKmWalked();
 	}
+
+	/**
+	 * Is the incubator currently being used
+	 * 
+	 * @return currently used or not
+	 */
+	public boolean isInUse() {
+		return getKmTarget() > pgo.getPlayerProfile().getStats().getKmWalked();
+	}
 }

src/main/java/com/pokegoapi/api/inventory/Hatchery.java

@@ -49,6 +49,7 @@ public void reset(PokemonGo pgo) {
 	}
 
 	public void addEgg(EggPokemon egg) {
+		egg.setPgo(instance);
 		eggs.add(egg);
 	}
 

src/main/java/com/pokegoapi/api/pokemon/EggPokemon.java

@@ -18,6 +18,8 @@
 import POGOProtos.Data.PokemonDataOuterClass.PokemonData;
 import POGOProtos.Networking.Responses.UseItemEggIncubatorResponseOuterClass.UseItemEggIncubatorResponse;
 
+import com.annimon.stream.Stream;
+import com.annimon.stream.function.Predicate;
 import com.pokegoapi.api.PokemonGo;
 import com.pokegoapi.api.inventory.EggIncubator;
 import com.pokegoapi.exceptions.LoginFailedException;
@@ -51,6 +53,28 @@ public UseItemEggIncubatorResponse.Result incubate(EggIncubator incubator)
 		}
 		return incubator.hatchEgg(this);
 	}
+
+	/**
+	 * Get the current distance that has been done with this egg
+	 * @return get distance already walked
+	 */
+	public double getEggKmWalked() {
+		if (!isIncubate())
+			return 0;
+		EggIncubator incubator = Stream.of(pgo.getInventories().getIncubators())
+				.filter(new Predicate<EggIncubator>() {
+					@Override
+					public boolean test(EggIncubator incub) {
+						return incub.getId().equals(proto.getEggIncubatorId());
+					}
+				}).findFirst().orElse(null);
+		// incubator should not be null but why not eh
+		if (incubator == null)
+			return 0;
+		else
+			return proto.getEggKmWalkedTarget()
+					- (incubator.getKmTarget() - pgo.getPlayerProfile().getStats().getKmWalked());
+	}
 
 	// DELEGATE METHODS BELOW //
 	/**
@@ -73,10 +97,6 @@ public double getEggKmWalkedTarget() {
 		return proto.getEggKmWalkedTarget();
 	}
 
-	public double getEggKmWalkedStart() {
-		return proto.getEggKmWalkedStart();
-	}
-
 	public long getCapturedCellId() {
 		return proto.getCapturedCellId();
 	}