Add positional sounds from the tilemap

moonlight/js/moonlight-skulk.js

@@ -107,7 +107,8 @@ SoundSprite.prototype.update_new_values = function() {
 
 SoundSprite.prototype.adjust_relative_to = function(spr) {
     if ( this.sound_alwaysplay == false ) {
-	if ( ! this.inCamera ) {
+	// we can't use inCamera because we don't have a body/sprite
+	if ( ! game.camera.screenView.contains(this.x, this.y) ) {
 	    console.log("Sound is not on camera");
 	    // don't turn it off, let it continue at zero volume
 	    // for more realistic effect whe the player returns