SCUMM: Check whether sound effects are active in Player_AD::getSoundStatus.

This fixes bug #7076 "LOOM: AdLib sound effect not stopped at Cygna's grave.".

Original SCUMM (I checked Monkey Island EGA) implemented Sound::isSoundRunning
by checking whether the sound resource of the requested sound id is locked. We
use actual sound state inside the player.

NEWS

@@ -34,6 +34,7 @@ For a more comprehensive changelog of the latest experimental code, see:
  SCUMM:
    - Fixed detection of Maniac Mansion from Day of the Tentacle in the Windows
      version of ScummVM.
+   - Fixed a sound effect not stopping in Loom EGA with AdLib.
 
  Broken Sword 2.5:
    - Added option to use English speech instead of German one when no speech is

engines/scumm/players/player_ad.cpp

@@ -178,7 +178,17 @@ int Player_AD::getMusicTimer() {
 }
 
 int Player_AD::getSoundStatus(int sound) const {
-	return (sound == _soundPlaying);
+	if (sound == _soundPlaying) {
+		return true;
+	}
+
+	for (int i = 0; i < ARRAYSIZE(_sfx); ++i) {
+		if (_sfx[i].resource == sound) {
+			return true;
+		}
+	}
+
+	return false;
 }
 
 void Player_AD::saveLoadWithSerializer(Serializer *ser) {