From f42186e0ef4e484da818b1125c9045ca24ec5708 Mon Sep 17 00:00:00 2001
From: "simon.kagstrom" <simon.kagstrom@feb19cf6-d755-11dd-8179-53c65a4d6d95>
Date: Sun, 8 Mar 2009 08:59:29 +0000
Subject: [PATCH] Add nunchuk support (Aaron Morris)

---
 CHANGES.WII       |  4 ++++
 Src/Display_SDL.h | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/CHANGES.WII b/CHANGES.WII
index 94a6ffd..b706db7 100644
--- a/CHANGES.WII
+++ b/CHANGES.WII
@@ -5,7 +5,11 @@
 
 		TODO: Crash on + in "Other" menu
 
+		TODO: Handle Run/Stop in virtual keyboard (?)
+
 version 8:
+		* Make it possible to control the game with the Nunchuk (Aaron Morris) 
+
 		* Correct binding of shifted keys (thanks to Bob Forgan)
 
 		* Fix binding keys without the classic controller (plus etc were missing)
diff --git a/Src/Display_SDL.h b/Src/Display_SDL.h
index fc7133c..3cec662 100644
--- a/Src/Display_SDL.h
+++ b/Src/Display_SDL.h
@@ -660,6 +660,46 @@ uint8 C64::poll_joystick(int port)
 	extra_keys[WIIMOTE_MINUS] = (held_classic & CLASSIC_CTRL_BUTTON_MINUS) |
 		held & WPAD_BUTTON_MINUS;
 
+	// nunchuck .. just map to the d-pad!
+	if (wpad->exp.type == EXP_NUNCHUK)
+	{
+		held_nunchuck = 1;
+
+		// left
+		if((wpad->exp.nunchuk.js.ang>=270-45 && wpad->exp.nunchuk.js.ang<=270+45) && wpad->exp.nunchuk.js.mag>=0.9)
+			extra_keys[WIIMOTE_LEFT] = held_nunchuck;
+
+		// right
+		if((wpad->exp.nunchuk.js.ang>=90-45 && wpad->exp.nunchuk.js.ang<=90+45) && wpad->exp.nunchuk.js.mag>=0.9)
+			extra_keys[WIIMOTE_RIGHT] = held_nunchuck;
+
+		// up
+		if((wpad->exp.nunchuk.js.ang>=360-45 || wpad->exp.nunchuk.js.ang<=45) && wpad->exp.nunchuk.js.mag>=0.9)
+			extra_keys[WIIMOTE_UP] = held_nunchuck;
+
+		// down
+		if((wpad->exp.nunchuk.js.ang>=180-45 && wpad->exp.nunchuk.js.ang<=180+45) && wpad->exp.nunchuk.js.mag>=0.9)
+			extra_keys[WIIMOTE_DOWN] = held_nunchuck;
+
+		// up/left
+		if((wpad->exp.nunchuk.js.ang>=315-20 && wpad->exp.nunchuk.js.ang<=315+20) && wpad->exp.nunchuk.js.mag>=0.9)
+			extra_keys[WIIMOTE_LEFT] = extra_keys[WIIMOTE_UP] = held_nunchuck;
+
+		//up/right
+		if((wpad->exp.nunchuk.js.ang>=45-20 && wpad->exp.nunchuk.js.ang<=45+20) && wpad->exp.nunchuk.js.mag>=0.9)
+			extra_keys[WIIMOTE_RIGHT] = extra_keys[WIIMOTE_UP] = held_nunchuck;
+
+		//down/right
+		if((wpad->exp.nunchuk.js.ang>=135-20 && wpad->exp.nunchuk.js.ang<=135+20) && wpad->exp.nunchuk.js.mag>=0.9)
+			extra_keys[WIIMOTE_RIGHT] = extra_keys[WIIMOTE_DOWN] = held_nunchuck;
+
+		//down/left
+		if((wpad->exp.nunchuk.js.ang>=225-20 && wpad->exp.nunchuk.js.ang<=225+20) && wpad->exp.nunchuk.js.mag>=0.9)
+			extra_keys[WIIMOTE_LEFT] = extra_keys[WIIMOTE_DOWN] = held_nunchuck;
+
+	}
+	// eof nunchuck
+
 	/* Merge common keys */
 	int active_binded_keys[N_WIIMOTE_BINDINGS];
 	memcpy(active_binded_keys, ThePrefs.JoystickKeyBinding, sizeof(active_binded_keys));