Check missile source type to determine death reason

Source/missiles.cpp

@@ -446,7 +446,7 @@ void CheckMissileCol(Missile &missile, DamageType damageType, int minDamage, int
 				isPlayerHit = PlayerMHit(pid - 1, &monster, missile._midist, minDamage, maxDamage, missile._mitype, damageType, isDamageShifted, DeathReason::MonsterOrTrap, &blocked);
 			}
 		} else {
-			DeathReason deathReason = (!missile.IsTrap() && (missile._miAnimType == MissileGraphicID::FireWall || missile._miAnimType == MissileGraphicID::Lightning)) ? DeathReason::Player : DeathReason::MonsterOrTrap;
+			DeathReason deathReason = missile.sourceType() == MissileSource::Player ? DeathReason::Player : DeathReason::MonsterOrTrap;
 			isPlayerHit = PlayerMHit(pid - 1, nullptr, missile._midist, minDamage, maxDamage, missile._mitype, damageType, isDamageShifted, deathReason, &blocked);
 		}
 	}