From 7ac353a7895f1ab30d09268968bc85ef9394cf41 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Tue, 5 Aug 2008 00:39:09 +0000
Subject: initial joystick control support

---
 src/client/input.cc    | 60 ++++++++++++++++++++++++++++++++++++++++++++------
 src/client/joystick.cc |  5 +++++
 src/client/joystick.h  |  2 ++
 3 files changed, 60 insertions(+), 7 deletions(-)

(limited to 'src')

diff --git a/src/client/input.cc b/src/client/input.cc
index 6778e9c..2f6fb27 100644
--- a/src/client/input.cc
+++ b/src/client/input.cc
@@ -66,6 +66,8 @@ float mouse_control_override_time = 0;
 bool mouse_control_override = false;
 bool mouse_control = false;
 
+bool joystick_control = false;
+
 const float thruster_offset = 0.05f;
 const float mouse_timeout = 0.200f; // 200 ms mouse timout
 
@@ -533,6 +535,42 @@ void key_released(Key *key)
 	}
 }
 
+void axis_event(int axis, int value)
+{
+	// value is in range -32768 to 32767
+	switch(axis) {
+		case 0: // direction
+			if (value >= 0) {
+				local_direction = (float) value / 32767.0f;
+			} else {
+				local_direction = (float) value / 32768.0f;
+			}
+
+			local_direction	*= -1;
+			break;
+
+		case 1: // pitch
+			if (value >= 0) {
+				local_pitch = (float) value / 32767.0f;
+			} else {
+				local_pitch = (float) value / 32768.0f;
+			}
+
+			break;
+
+		case 2: // roll
+			if (value >= 0) {
+				local_roll = (float) value / 32767.0f;
+			} else {
+				local_roll = (float) value / 32768.0f;
+			}
+
+			local_roll	*= -1;
+			break;
+	}
+
+}
+
 void reset()
 {
 	local_direction = 0.0f;
@@ -586,9 +624,9 @@ void frame(float seconds)
 		render::reset();	
 	}
 
-	/* -- detect joystick changes --------------------- */
+	/* -- detect joystick stat changes ---------------- */
 	Joystick::frame();
-
+	joystick_control = Joystick::is_enabled();
 
 	/* -- poll SDL keyboard events -------------------- */
 	SDL_Event event;
@@ -632,6 +670,10 @@ void frame(float seconds)
 				pressed = false;
 				break;
 
+			case SDL_JOYAXISMOTION:
+				axis_event((int) event.jaxis.axis, (int) event.jaxis.value);
+				break;
+
 			case SDL_KEYDOWN:
 				keyboard_modifiers = event.key.keysym.mod;
 				key = keyboard->press(event.key.keysym.sym);
@@ -700,10 +742,13 @@ void frame(float seconds)
 	mouse_deadzone = false;
 
 	if (core::application()->connected() && core::localcontrol()) {
-
-		mouse_control = !console()->visible() && ((input_mousecontrol->value() > 0) 
-		|| (mouse_control_override && (mouse_control_override_time + mouse_timeout < core::application()->time())));
-		//core::localcontrol()->set_autolevel(!mouse_control);
+		mouse_control = !console()->visible() && ((input_mousecontrol->value() > 0) || (mouse_control_override && (mouse_control_override_time + mouse_timeout < core::application()->time())));
+		
+		if (mouse_control && joystick_control && ((render::Camera::mode() == render::Camera::Track) || (render::Camera::mode() == render::Camera::Cockpit))) {
+			if (!(mouse_control_override && (mouse_control_override_time + mouse_timeout < core::application()->time()))) {
+				mouse_control = false;
+			}
+		}
 
 		if (mouse_control) {
 			// the mouse will not react if it is in the deadzone
@@ -735,6 +780,7 @@ void frame(float seconds)
 			}
 
 			if ((render::Camera::mode() == render::Camera::Track) || (render::Camera::mode() == render::Camera::Cockpit)) {
+				
 				local_direction = mouse_direction * math::absf(mouse_direction);
 				local_pitch = mouse_pitch * math::absf(mouse_pitch);
 
@@ -745,7 +791,7 @@ void frame(float seconds)
 			}
 			
 		}
-		
+
 		math::clamp(local_direction, -1.0f,  1.0f);
 		math::clamp(local_pitch, -1.0f,  1.0f);
 		math::clamp(local_roll, -1.0f,  1.0f);
diff --git a/src/client/joystick.cc b/src/client/joystick.cc
index cf2270f..5f09280 100644
--- a/src/client/joystick.cc
+++ b/src/client/joystick.cc
@@ -56,6 +56,11 @@ void Joystick::shutdown()
 	SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
 }
 
+bool Joystick::is_enabled()
+{
+	return (current_joystick != 0);
+}
+
 void Joystick::frame()
 {
 	if (current_joystick_number != (int) input_joystick->value())
diff --git a/src/client/joystick.h b/src/client/joystick.h
index e21a60c..9404cb3 100644
--- a/src/client/joystick.h
+++ b/src/client/joystick.h
@@ -18,6 +18,8 @@ public:
 	static void shutdown();
 
 	static void frame();
+
+	static bool is_enabled();
 };
 
 }
-- 
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