added manyloc test suite; --path now relative to project dir if not absolute

tests/manyloc/keineschweine/lib/sound_buffer.nim

@@ -0,0 +1,38 @@
+when defined(NoSFML) or defined(NoChipmunk):
+  {.error.}
+import sfml_audio, sfml_stuff, sg_assets, chipmunk
+const
+  MinDistance* = 350.0
+  Attenuation* = 20.0
+var
+  liveSounds: seq[PSound] = @[]
+  deadSounds: seq[PSound] = @[]
+
+proc playSound*(sound: PSoundRecord, pos: TVector) =
+  if sound.isNil or sound.soundBuf.isNil: return
+  var s: PSound
+  if deadSounds.len == 0:
+    s = sfml_audio.newSound()
+    s.setLoop false
+    s.setRelativeToListener true
+    s.setAttenuation Attenuation
+    s.setMinDistance MinDistance
+  else:
+    s = deadSounds.pop()
+  s.setPosition(vec3f(pos.x, 0, pos.y))
+  s.setBuffer(sound.soundBuf)
+  s.play()
+  liveSounds.add s
+
+proc updateSoundBuffer*() =
+  var i = 0
+  while i < len(liveSounds):
+    if liveSounds[i].getStatus == Stopped:
+      deadSounds.add liveSounds[i]
+      liveSounds.del i
+    else:
+      inc i
+
+proc report*() =
+  echo "live: ", liveSounds.len
+  echo "dead: ", deadSounds.len