added RumbleEvent class for using the "Logitech Rumble Gamepad"

 * similar to NanoEvent: symbolic controller names, normalized value and scaling functions, ports

2 files changed, 106 insertions, 0 deletions

diff --git a/lib.ck b/lib.ck
index 2915a17..52b476f 100644
--- a/lib.ck
+++ b/lib.ck
@@ -6,6 +6,7 @@ Machine.add("lib/Element.ck");
 Machine.add("lib/List.ck");
 Machine.add("lib/GenEvent.ck");
 Machine.add("lib/NanoEvent.ck");
+Machine.add("lib/RumbleEvent.ck");
 
 /* platform independant Clipper classes */
 //Machine.add("lib/ClipperGraph.ck");
diff --git a/lib/RumbleEvent.ck b/lib/RumbleEvent.ck
new file mode 100644
index 0000000..0992bc0
--- /dev/null
+++ b/lib/RumbleEvent.ck
@@ -0,0 +1,105 @@
+/*
+ * "Logitech Rumble Gamepad" event class
+ */
+public class RumbleEvent extends GenEvent {
+	static string @__axisToName[];		/* pseudo-private */
+	static string @__buttonToName[];	/* pseudo-private */
+
+	class Port extends Step {
+		fun void
+		fetch(int device, string wantControl)
+		{
+			Hid hid;
+
+			if (!hid.openJoystick(device)) {
+				cherr <= "Cannot open joystick device " <= device
+				      <= IO.newline();
+				me.exit();
+			}
+			chout <= "Opened joystick device " <= device <= " (" <= hid.name() <= ")"
+			      <= IO.newline();
+
+			while (hid => now) {
+				while (HidMsg msg => hid.recv) {
+					string control;
+					float value;
+
+					if (msg.isAxisMotion()) {
+						RumbleEvent.__axisToName[msg.which] => control;
+						msg.axisPosition => value;
+					} else if (msg.isButtonDown()) {
+						RumbleEvent.__buttonToName[msg.which] => control;
+						1 => value;
+					} else if (msg.isButtonUp()) {
+						RumbleEvent.__buttonToName[msg.which] => control;
+						-1 => value;
+					}
+
+					if (control == wantControl)
+						value => next;
+				}
+			}
+			/* never reached */
+		}
+	}
+
+	/* should be "Generic X-Box pad" */
+	0 => int device;
+
+	string control;
+
+	fun int
+	isControl(string c)
+	{
+		return control == c;
+	}
+
+	fun Step @
+	getPort(string control)
+	{
+		Port p;
+		spork ~ p.fetch(device, control);
+		return p;
+	}
+
+	fun void
+	__hid_loop() /* pseudo-private */
+	{
+		Hid hid;
+
+		if (!hid.openJoystick(device)) {
+			cherr <= "Cannot open joystick device " <= device
+			      <= IO.newline();
+			me.exit();
+		}
+		chout <= "Opened joystick device " <= device <= " (" <= hid.name() <= ")"
+		      <= IO.newline();
+
+		while (hid => now) {
+			while (HidMsg msg => hid.recv) {
+				if (msg.isAxisMotion()) {
+					__axisToName[msg.which] => control;
+					(msg.axisPosition+1)/2 => value;
+				} else if (msg.isButtonDown()) {
+					__buttonToName[msg.which] => control;
+					true => value;
+				} else if (msg.isButtonUp()) {
+					__buttonToName[msg.which] => control;
+					false => value;
+				}
+
+				if (control != "")
+					broadcast();
+			}
+		}
+		/* never reached */
+	}
+	spork ~ __hid_loop();
+}
+/* static initialization */
+["leftJoystickX", "leftJoystickY", "leftButton",
+ "rightJoystickX", "rightJoystickY", "rightButton",
+ "cursorX", "cursorY"] @=> RumbleEvent.__axisToName;
+["buttonA", "buttonB", "buttonX", "buttonY",
+ "buttonLB", "buttonRB",
+ "buttonStart", "buttonBack"] @=> RumbleEvent.__buttonToName;