2 files changed, 27 insertions, 0 deletions
diff --git a/engines/gob/minigames/geisha/evilfish.cpp b/engines/gob/minigames/geisha/evilfish.cpp
index e2672d75c8..592e84a32c 100644
--- a/engines/gob/minigames/geisha/evilfish.cpp
+++ b/engines/gob/minigames/geisha/evilfish.cpp
@@ -158,6 +158,29 @@ void EvilFish::advance() {
 	}
 }
 
+void EvilFish::mutate(uint16 animSwimLeft, uint16 animSwimRight,
+                      uint16 animTurnLeft, uint16 animTurnRight, uint16 animDie) {
+
+	_animSwimLeft  = animSwimLeft;
+	_animSwimRight = animSwimRight;
+	_animTurnLeft  = animTurnLeft;
+	_animTurnRight = animTurnRight;
+	_animDie       = animDie;
+
+	switch (_state) {
+	case kStateSwimLeft:
+		setAnimation(_animSwimLeft);
+		break;
+
+	case kStateSwimRight:
+		setAnimation(_animSwimRight);
+		break;
+
+	default:
+		break;
+	}
+}
+
 } // End of namespace Geisha
 
 } // End of namespace Gob
diff --git a/engines/gob/minigames/geisha/evilfish.h b/engines/gob/minigames/geisha/evilfish.h
index 1801ad9b16..223645f47f 100644
--- a/engines/gob/minigames/geisha/evilfish.h
+++ b/engines/gob/minigames/geisha/evilfish.h
@@ -56,6 +56,10 @@ public:
 	/** Advance the animation to the next frame. */
 	void advance();
 
+	/** Change the fish's animations, effectively making it a different fish type. */
+	void mutate(uint16 animSwimLeft, uint16 animSwimRight,
+	            uint16 animTurnLeft, uint16 animTurnRight, uint16 animDie);
+
 private:
 	enum State {
 		kStateNone,