Replace classic C-Dogs sounds (fixes #39)

sounds/door.txt

@@ -0,0 +1,3 @@
+Derived from Slide by jberkuta14
+https://www.freesound.org/people/jberkuta14/sounds/134894/
+http://creativecommons.org/publicdomain/zero/1.0/

sounds/explosion.txt

@@ -0,0 +1,4 @@
+Derived from cannon_boom7.wav by ReadeOnly
+http://freesound.org/people/ReadeOnly/sounds/186951/
+
+http://creativecommons.org/publicdomain/zero/1.0/

sounds/explosion_small.txt

@@ -1,4 +1,9 @@
-Derived from cannon_boom7.wav by ReadeOnly
-http://freesound.org/people/ReadeOnly/sounds/186951/
+Derived from
 
+Huge Explosion by unfa
+https://www.freesound.org/people/unfa/sounds/259300/
+http://creativecommons.org/licenses/by/3.0/
+
+Explosion_001.mp3 by cydon
+https://www.freesound.org/people/cydon/sounds/268557/
 http://creativecommons.org/publicdomain/zero/1.0/

sounds/flamer.txt

@@ -0,0 +1,3 @@
+Derived from Flames 2 by shastrocks
+https://www.freesound.org/people/shastrocks/sounds/182119/
+http://creativecommons.org/publicdomain/zero/1.0/

sounds/fusion.txt

@@ -0,0 +1,3 @@
+Derived from JM_NOIZ_Laser 01.wav by Julien Matthey
+https://www.freesound.org/people/Julien%20Matthey/sounds/268344/
+http://creativecommons.org/publicdomain/zero/1.0/

sounds/hahaha.txt

@@ -0,0 +1,3 @@
+Derived from Evil Laughs Demonic Echos.mp3 by teqstudios
+https://www.freesound.org/people/teqstudios/sounds/118703/
+http://creativecommons.org/publicdomain/zero/1.0/

sounds/mg.txt

@@ -0,0 +1,3 @@
+Derived from Sniper Shot by LeMudCrab
+https://www.freesound.org/people/LeMudCrab/sounds/163460/
+http://creativecommons.org/publicdomain/zero/1.0/

sounds/pickup.txt

@@ -0,0 +1,3 @@
+Derived from picking_up_DVDs.wav by daboy291
+https://www.freesound.org/people/daboy291/sounds/138078/
+http://creativecommons.org/publicdomain/zero/1.0/

sounds/powergun.txt

@@ -0,0 +1,3 @@
+Derived from fusion-gun_flash0_by_OnlyTheGhosts.wav by OnlyTheGhosts
+https://www.freesound.org/people/OnlyTheGhosts/sounds/251431/
+http://creativecommons.org/licenses/by/3.0/

sounds/shotgun.txt

@@ -0,0 +1,3 @@
+Derived from SPAS-12 by duesto
+https://www.freesound.org/people/duesto/sounds/156904/
+http://creativecommons.org/publicdomain/zero/1.0/

sounds/whistle.txt

@@ -0,0 +1,3 @@
+Derived from Thats correct.mp3 by cityrocker
+https://www.freesound.org/people/cityrocker/sounds/121342/
+http://creativecommons.org/publicdomain/zero/1.0/

src/cdogs/map.c

@@ -768,14 +768,6 @@ static Trigger *CreateOpenDoorTrigger(
 
 	t->flags = flags;
 
-	/// play sound at the center of the door group
-	a = TriggerAddAction(t);
-	a->Type = ACTION_SOUND;
-	a->u.pos = Vec2iCenterOfTile(Vec2iNew(
-		v.x + dv.x * doorGroupCount / 2,
-		v.y + dv.y * doorGroupCount / 2));
-	a->a.Sound = StrSound("door");
-
 	// Deactivate itself
 	a = TriggerAddAction(t);
 	a->Type = ACTION_CLEARTRIGGER;
@@ -842,6 +834,14 @@ static Trigger *CreateOpenDoorTrigger(
 		TileAddTrigger(MapGetTile(map, vAside), t);
 	}
 
+	/// play sound at the center of the door group
+	a = TriggerAddAction(t);
+	a->Type = ACTION_SOUND;
+	a->u.pos = Vec2iCenterOfTile(Vec2iNew(
+		v.x + dv.x * doorGroupCount / 2,
+		v.y + dv.y * doorGroupCount / 2));
+	a->a.Sound = StrSound("door");
+
 	return t;
 }
 static void MapAddDoorGroup(Map *map, Vec2i v, int floor, int room, int flags)