From a2c33aadbaf3f30f4e3d4a201c464ad65a0dc2a8 Mon Sep 17 00:00:00 2001
From: Philip Rosedale <philip@highfidelity.io>
Date: Fri, 3 Jan 2014 17:58:00 -0800
Subject: [PATCH] two script example files

---
 examples/clap.js      | 52 +++++++++++++++++++++++++++++++++++++++++++
 examples/playSound.js | 20 +++++++++++++++++
 2 files changed, 72 insertions(+)
 create mode 100644 examples/clap.js
 create mode 100644 examples/playSound.js

diff --git a/examples/clap.js b/examples/clap.js
new file mode 100644
index 0000000000..3638d3e589
--- /dev/null
+++ b/examples/clap.js
@@ -0,0 +1,52 @@
+//
+//  This sample script watches your hydra hands and makes clapping sound 
+//
+
+function length(v) {
+    return Math.sqrt(v.x * v.x + v.y * v.y + v.z * v.z);
+}
+
+
+function printVector(v) {
+	print(v.x + ", " + v.y + ", " + v.z + "\n");
+}
+
+function vMinus(a, b) { 
+	var rval = { x: a.x - b.x, y: a.y - b.y, z: a.z - b.z };
+	return rval;
+}
+
+//  First, load the clap sound from a URL 
+var clap = new Sound("https://s3-us-west-1.amazonaws.com/highfidelity-public/sounds/clap1.raw");
+var clapping = new Array();
+clapping[0] = false; 
+clapping[1] = false; 
+
+function maybePlaySound() {
+	//  Set the location and other info for the sound to play
+	var palm1Position = Controller.getSpatialControlPosition(0);
+	var palm2Position = Controller.getSpatialControlPosition(2);
+	var distanceBetween = length(vMinus(palm1Position, palm2Position));
+
+	for (var palm = 0; palm < 2; palm++) {
+		var palmVelocity = Controller.getSpatialControlVelocity(palm * 2 + 1);
+		var speed = length(palmVelocity);
+		
+		const CLAP_SPEED = 0.2;
+		const CLAP_DISTANCE = 0.3; 
+
+    	if (!clapping[palm] && (distanceBetween < CLAP_DISTANCE) && (speed > CLAP_SPEED)) {
+    		var options = new AudioInjectionOptions();

+			options.position = palm1Position;
+			options.volume = speed / 2.0;
+			if (options.volume > 1.0) options.volume = 1.0;
+			Audio.playSound(clap, options);
+			clapping[palm] = true; 
+    	} else if (clapping[palm] && (speed < (CLAP_SPEED / 1.5))) {
+    		clapping[palm] = false;
+    	}
+	}
+}
+
+// Connect a call back that happens every frame
+Agent.willSendVisualDataCallback.connect(maybePlaySound);
\ No newline at end of file
diff --git a/examples/playSound.js b/examples/playSound.js
new file mode 100644
index 0000000000..36e8822b56
--- /dev/null
+++ b/examples/playSound.js
@@ -0,0 +1,20 @@
+//
+//  This sample script makes an occassional clapping sound at the location of your palm
+//
+
+//  First, load the clap sound from a URL 
+var clap = new Sound("https://s3-us-west-1.amazonaws.com/highfidelity-public/sounds/clap1.raw");
+
+function maybePlaySound() {
+	if (Math.random() < 0.01) {
+		//  Set the location and other info for the sound to play
+		var options = new AudioInjectionOptions();

+		var palmPosition = Controller.getSpatialControlPosition(0);
+		options.position = palmPosition;
+		options.volume = 0.1;
+		Audio.playSound(clap, options);
+	}
+}
+
+// Connect a call back that happens every frame
+Agent.willSendVisualDataCallback.connect(maybePlaySound);
\ No newline at end of file