Set sprite frame to 0 when dead.

src/entities/entity.c

@@ -152,6 +152,7 @@ static void activate(int active)
 
 static void die(void)
 {
+	self->spriteFrame = 0;
 	self->alive = ALIVE_DEAD;
 }
 

src/world/entities.c

@@ -201,6 +201,7 @@ void doEntities(void)
 				if (self->health <= 0)
 				{
 					self->alive = ALIVE_DYING;
+					self->spriteFrame = 0;
 					self->die();
 				}