Add Initial Sound Effects

Adds support for sound effects in Doodle and configures some for various
doodads to start out with:

* Buttons and Switches: "Clicked down" and "clicked up" sounds.
* Colored Doors: an "unlocked" sound and a "door opened" sound.
* Electric Door: sci-fi sounds when opening and closing.
* Keys: sound effect for collecting keys.

JavaScript API for Doodads adds a global function `Sound.Play(filename)`
to play sounds. All sounds in the `rtp/sfx/` folder are pre-loaded on
startup for efficient use in the app. Otherwise sounds are lazy-loaded
on first playback.

dev-assets/doodads/buttons/button.js

@@ -2,6 +2,7 @@ function main() {
 	console.log("%s initialized!", Self.Title);
 
 	var timer = 0;
+	var pressed = false;
 
 	Events.OnCollide(function(e) {
 		if (!e.Settled) {
@@ -13,7 +14,12 @@ function main() {
 			return;
 		}
 
+		if (!pressed) {
+			Sound.Play("button-down.wav")
 			Message.Publish("power", true);
+			pressed = true;
+		}
+
 
 		if (timer > 0) {
 			clearTimeout(timer);
@@ -21,9 +27,11 @@ function main() {
 
 		Self.ShowLayer(1);
 		timer = setTimeout(function() {
+			Sound.Play("button-up.wav")
 			Self.ShowLayer(0);
 			Message.Publish("power", false);
 			timer = 0;
+			pressed = false;
 		}, 200);
 	});
 }

dev-assets/doodads/buttons/sticky.js

@@ -8,6 +8,7 @@ function main() {
 		if (powered && pressed) {
 			Self.ShowLayer(0);
 			pressed = false;
+			Sound.Play("button-up.wav")
 			Message.Publish("power", false);
 		}
 	})
@@ -26,6 +27,7 @@ function main() {
 			return;
 		}
 
+		Sound.Play("button-down.wav")
 		Self.ShowLayer(1);
 		pressed = true;
 		Message.Publish("power", true);

dev-assets/doodads/crumbly-floor/crumbly-floor.js

@@ -43,6 +43,7 @@ function main() {
 				Self.PlayAnimation("shake", function() {
 					state = stateFalling;
 					Self.PlayAnimation("fall", function() {
+						Sound.Play("crumbly-break.wav")
 						state = stateFallen;
 						Self.ShowLayerNamed("fallen");
 

dev-assets/doodads/doors/colored-door.js

@@ -32,6 +32,7 @@ function main() {
 			if (unlocked) {
 				Self.ShowLayer(enterSide < 0 ? layer.right : layer.left);
 				opened = true;
+				Sound.Play("door-open.wav")
 				return;
 			}
 
@@ -45,11 +46,13 @@ function main() {
 			if (e.Settled) {
 				unlocked = true;
 				Self.ShowLayer(enterSide < 0 ? layer.right : layer.left);
+				Sound.Play("unlock.wav")
 			}
 		}
 	});
 	Events.OnLeave(function(e) {
 		Self.ShowLayer(layer.closed);
+		// Sound.Play("door-close.wav")
 
 		// Reset collision state.
 		opened = false;

dev-assets/doodads/doors/electric-door.js

@@ -17,12 +17,14 @@ function main() {
 			}
 
 			animating = true;
+			Sound.Play("electric-door.wav")
 			Self.PlayAnimation("open", function() {
 				opened = true;
 				animating = false;
 			});
 		} else {
 			animating = true;
+			Sound.Play("electric-door.wav")
 			Self.PlayAnimation("close", function() {
 				opened = false;
 				animating = false;

dev-assets/doodads/doors/keys.js

@@ -3,6 +3,7 @@ function main() {
 
 	Events.OnCollide(function(e) {
 		if (e.Settled) {
+			Sound.Play("item-get.wav")
 			e.Actor.AddItem(Self.Filename, 0);
 			Self.Destroy();
 		}

dev-assets/doodads/switches/switch.js

@@ -19,6 +19,7 @@ function main() {
 		}
 
 		if (collide === false) {
+			Sound.Play("button-down.wav")
 			state = !state;
 			Message.Publish("power", state);
 			showState(state);