sound interpolation

1 files changed, 17 insertions, 0 deletions

diff --git a/public/assets/javascripts/rectangles/engine/scenery/sound.js b/public/assets/javascripts/rectangles/engine/scenery/sound.js
new file mode 100644
index 0000000..2f7f8de
--- /dev/null
+++ b/public/assets/javascripts/rectangles/engine/scenery/sound.js
@@ -0,0 +1,17 @@
+
+Scenery.sound = {}
+Scenery.sound.max_distance = 600
+Scenery.sound.init = function(){
+  app.tube.on("move", Scenery.sound.move)
+}
+Scenery.sound.move = function(){
+  var vals = Scenery.map(function(scenery){
+    if ((scenery.type == "video" || scenery.type == "audio") && ! scenery.muted()) {
+      //get distance from A to B
+      var distance = dist(cam.x, cam.z, 
+                          scenery.mx.x, scenery.mx.z)
+      var volume = 1 - (clamp( distance, 0, Scenery.sound.max_distance ) / Scenery.sound.max_distance)
+      scenery.setVolume(volume)
+    }
+  })
+}