Initial revision.

diff --git a/Controls/controls.c b/Controls/controls.c
new file mode 100644 (file)
index 0000000..7d882c0
--- /dev/null
+++ b/Controls/controls.c
@@ -0,0 +1,173 @@
+/**************************************************************************
+ * controls.c -- defines a standard interface to all flight sim controls
+ *
+ * Written by Curtis Olson, started May 1997.
+ *
+ * Copyright (C) 1997  Curtis L. Olson  - curt@infoplane.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id$
+ * (Log is kept at end of this file)
+ **************************************************************************/
+
+
+#include "controls.h"
+#include "../aircraft/aircraft.h"
+
+
+void fgControlsInit() {
+    int i;
+    struct control_params *c;
+    c = &current_aircraft.controls;
+
+    FG_Elevator = 0.0;
+    FG_Elev_Trim = 1.969572E-03;
+    FG_Aileron  = 0.0;
+    FG_Rudder   = 0.0;
+
+    for ( i = 0; i < FG_MAX_ENGINES; i++ ) {
+       FG_Throttle[i] = 0.0;
+    }
+
+}
+
+
+void fgElevMove(double amt) {
+    struct control_params *c;
+    c = &current_aircraft.controls;
+
+    FG_Elevator += amt;
+
+    if ( FG_Elevator < -1.0 ) FG_Elevator = -1.0;
+    if ( FG_Elevator >  1.0 ) FG_Elevator =  1.0;
+}
+
+void fgElevSet(double pos) {
+    struct control_params *c;
+    c = &current_aircraft.controls;
+
+    FG_Elevator = pos;
+
+    if ( FG_Elevator < -1.0 ) FG_Elevator = -1.0;
+    if ( FG_Elevator >  1.0 ) FG_Elevator =  1.0;
+}
+
+void fgElevTrimMove(double amt) {
+    struct control_params *c;
+    c = &current_aircraft.controls;
+
+    FG_Elev_Trim += amt;
+
+    if ( FG_Elev_Trim < -1.0 ) FG_Elev_Trim = -1.0;
+    if ( FG_Elev_Trim >  1.0 ) FG_Elev_Trim =  1.0;
+}
+
+void fgElevTrimSet(double pos) {
+    struct control_params *c;
+    c = &current_aircraft.controls;
+
+    FG_Elev_Trim = pos;
+
+    if ( FG_Elev_Trim < -1.0 ) FG_Elev_Trim = -1.0;
+    if ( FG_Elev_Trim >  1.0 ) FG_Elev_Trim =  1.0;
+}
+
+void fgAileronMove(double amt) {
+    struct control_params *c;
+    c = &current_aircraft.controls;
+
+    FG_Aileron += amt;
+
+    if ( FG_Aileron < -1.0 ) FG_Aileron = -1.0;
+    if ( FG_Aileron >  1.0 ) FG_Aileron =  1.0;
+}
+
+void fgAileronSet(double pos) {
+    struct control_params *c;
+    c = &current_aircraft.controls;
+
+    FG_Aileron = pos;
+
+    if ( FG_Aileron < -1.0 ) FG_Aileron = -1.0;
+    if ( FG_Aileron >  1.0 ) FG_Aileron =  1.0;
+}
+
+void fgRudderMove(double amt) {
+    struct control_params *c;
+    c = &current_aircraft.controls;
+
+    FG_Rudder += amt;
+
+    if ( FG_Rudder < -1.0 ) FG_Rudder = -1.0;
+    if ( FG_Rudder >  1.0 ) FG_Rudder =  1.0;
+}
+
+void fgRudderSet(double pos) {
+    struct control_params *c;
+    c = &current_aircraft.controls;
+
+    FG_Rudder = pos;
+
+    if ( FG_Rudder < -1.0 ) FG_Rudder = -1.0;
+    if ( FG_Rudder >  1.0 ) FG_Rudder =  1.0;
+}
+
+void fgThrottleMove(int engine, double amt) {
+    int i;
+    struct control_params *c;
+    c = &current_aircraft.controls;
+
+    if ( engine == FG_Throttle_All ) {
+       for ( i = 0; i < FG_MAX_ENGINES; i++ ) {
+           FG_Throttle[i] += amt;
+           if ( FG_Throttle[i] < 0.0 ) FG_Throttle[i] = 0.0;
+           if ( FG_Throttle[i] > 1.0 ) FG_Throttle[i] = 1.0;
+       }
+    } else {
+       if ( (engine >= 0) && (engine < FG_MAX_ENGINES) ) {
+           FG_Throttle[engine] += amt;
+           if ( FG_Throttle[engine] < 0.0 ) FG_Throttle[engine] = 0.0;
+           if ( FG_Throttle[engine] > 1.0 ) FG_Throttle[engine] = 1.0;
+       }
+    }
+}
+
+void fgThrottleSet(int engine, double pos) {
+    int i;
+    struct control_params *c;
+    c = &current_aircraft.controls;
+
+    if ( engine == FG_Throttle_All ) {
+       for ( i = 0; i < FG_MAX_ENGINES; i++ ) {
+           FG_Throttle[i] = pos;
+           if ( FG_Throttle[i] < 0.0 ) FG_Throttle[i] = 0.0;
+           if ( FG_Throttle[i] > 1.0 ) FG_Throttle[i] = 1.0;
+       }
+    } else {
+       if ( (engine >= 0) && (engine < FG_MAX_ENGINES) ) {
+           FG_Throttle[engine] = pos;
+           if ( FG_Throttle[engine] < 0.0 ) FG_Throttle[engine] = 0.0;
+           if ( FG_Throttle[engine] > 1.0 ) FG_Throttle[engine] = 1.0;
+       }
+    }
+}
+
+
+/* $Log$
+/* Revision 1.1  1997/05/31 19:24:04  curt
+/* Initial revision.
+/*
+ */