From dcdd61c590bff9b2b555c2d06e235e54e4a38b0f Mon Sep 17 00:00:00 2001
From: curt <curt>
Date: Mon, 12 Jun 2000 20:52:36 +0000
Subject: [PATCH] Added differential braking (Alex and David).

---
 src/FDM/LaRCsim.cxx           |  3 ++-
 src/FDM/LaRCsim/c172_gear.c   |  7 +++++--
 src/FDM/LaRCsim/ls_cockpit.h  |  5 ++++-
 src/FDM/LaRCsim/navion_gear.c |  8 +++++---
 src/Main/keyboard.cxx         | 14 ++++++++++++++
 5 files changed, 30 insertions(+), 7 deletions(-)

diff --git a/src/FDM/LaRCsim.cxx b/src/FDM/LaRCsim.cxx
index 1c2697be2..9203b249e 100644
--- a/src/FDM/LaRCsim.cxx
+++ b/src/FDM/LaRCsim.cxx
@@ -91,7 +91,8 @@ int FGLaRCsim::update( int multiloop ) {
     Rudder_pedal = controls.get_rudder();
     Flap_handle = 30.0 * controls.get_flaps();
     Throttle_pct = controls.get_throttle( 0 ) * 1.0;
-    Brake_pct = controls.get_brake( 0 );
+    Brake_pct[0] = controls.get_brake( 1 );
+    Brake_pct[1] = controls.get_brake( 0 );
 
     // Inform LaRCsim of the local terrain altitude
     Runway_altitude = get_Runway_altitude();
diff --git a/src/FDM/LaRCsim/c172_gear.c b/src/FDM/LaRCsim/c172_gear.c
index 1ea4cc6cc..9f54fa62e 100644
--- a/src/FDM/LaRCsim/c172_gear.c
+++ b/src/FDM/LaRCsim/c172_gear.c
@@ -36,6 +36,9 @@
 
 $Header$
 $Log$
+Revision 1.15  2000/06/12 18:52:37  curt
+Added differential braking (Alex and David).
+
 Revision 1.14  2000/04/10 18:09:41  curt
 David Megginson made a few (mostly minor) mods to the LaRCsim files, and
 it's now possible to choose the LaRCsim model at runtime, as in
@@ -220,8 +223,8 @@ char gear_strings[NUM_WHEELS][12]={"nose","right main", "left main", "tail skid"
    * Put aircraft specific executable code here
    */
    
-    percent_brake[1] = Brake_pct; /* replace with cockpit brake handle connection code */
-    percent_brake[2] = percent_brake[1];
+    percent_brake[1] = Brake_pct[0];
+    percent_brake[2] = Brake_pct[1];
     
     caster_angle_rad[0] = 0.52*Rudder_pedal;
     
diff --git a/src/FDM/LaRCsim/ls_cockpit.h b/src/FDM/LaRCsim/ls_cockpit.h
index 0661e3e0e..431f006fa 100644
--- a/src/FDM/LaRCsim/ls_cockpit.h
+++ b/src/FDM/LaRCsim/ls_cockpit.h
@@ -35,6 +35,9 @@
 
 $Header$
 $Log$
+Revision 1.3  2000/06/12 18:52:37  curt
+Added differential braking (Alex and David).
+
 Revision 1.2  1999/10/29 16:08:32  curt
 Added flaps support to c172 model.
 
@@ -92,7 +95,7 @@ typedef struct {
     short   left_pb_on_stick, right_pb_on_stick, trig_pos_1, trig_pos_2;
     short   sb_extend, sb_retract, gear_sel_up;
     float   throttle_pct;
-    float   brake_pct;
+    float   brake_pct[2];
 } COCKPIT;
 
 extern COCKPIT cockpit_;
diff --git a/src/FDM/LaRCsim/navion_gear.c b/src/FDM/LaRCsim/navion_gear.c
index 91de63c52..2e8fb4a5f 100644
--- a/src/FDM/LaRCsim/navion_gear.c
+++ b/src/FDM/LaRCsim/navion_gear.c
@@ -36,6 +36,9 @@
 
 $Header$
 $Log$
+Revision 1.3  2000/06/12 18:52:37  curt
+Added differential braking (Alex and David).
+
 Revision 1.2  2000/04/10 18:09:41  curt
 David Megginson made a few (mostly minor) mods to the LaRCsim files, and
 it's now possible to choose the LaRCsim model at runtime, as in
@@ -235,9 +238,8 @@ char rcsid[] = "$Id$";
    * Put aircraft specific executable code here
    */
    
-    /* replace with cockpit brake handle connection code */
-    percent_brake[1] = Brake_pct;
-    percent_brake[2] = percent_brake[1];
+    percent_brake[1] = Brake_pct[0];
+    percent_brake[2] = Brake_pct[1];
     
     caster_angle_rad[0] = 0.03*Rudder_pedal;
     
diff --git a/src/Main/keyboard.cxx b/src/Main/keyboard.cxx
index f76b50f3c..4e6b61761 100644
--- a/src/Main/keyboard.cxx
+++ b/src/Main/keyboard.cxx
@@ -324,6 +324,20 @@ void GLUTkey(unsigned char k, int x, int y) {
 	    b_set = double(!b_ret);
 	    controls.set_brake( FGControls::ALL_WHEELS, b_set);
 	    return;
+	case 44: // , key
+	    if (controls.get_brake(0) > 0.0) {
+	        controls.set_brake(0, 0.0);
+	    } else {
+	        controls.set_brake(0, 1.0);
+	    }
+	    return;
+	case 46: // . key
+	    if (controls.get_brake(1) > 0.0) {
+	        controls.set_brake(1, 0.0);
+	    } else {
+	        controls.set_brake(1, 1.0);
+	    }
+	    return;
 	case 104: // h key
 	    HUD_masterswitch( true );
 	    return;
-- 
2.39.5