/**************************************************************************
 * tkglkey.c -- handle tkgl keyboard events
 *
 * 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 <stdio.h>

#include <GL/glut.h>

#include "GLUTkey.h"
#include "../aircraft/aircraft.h"

extern double fogDensity;

/* Handle keyboard events */
void GLUTkey(unsigned char k, int x, int y) {
    struct control_params *c;

    c = &current_aircraft.controls;

    printf("Key hit = %d\n", k);

    switch (k) {
    case 50: /* numeric keypad 2 */
	fgElevMove(-0.01);
	return;
    case 56: /* numeric keypad 8 */
	fgElevMove(0.01);
	return;
    case 49: /* numeric keypad 1 */
	fgElevTrimMove(-0.001);
	return;
    case 55: /* numeric keypad 7 */
	fgElevTrimMove(0.001);
	return;
    case 52: /* numeric keypad 4 */
	fgAileronMove(-0.01);
	return;
    case 54: /* numeric keypad 6 */
	fgAileronMove(0.01);
	return;
    case 48: /* numeric keypad Ins */
	fgRudderMove(-0.01);
	return;
    case 13: /* numeric keypad Enter */
	fgRudderMove(0.01);
	return;
    case 53: /* numeric keypad 5 */
	fgAileronSet(0.0);
	fgElevSet(0.0);
	fgRudderSet(0.0);
	return;
    case 57: /* numeric keypad 9 (Pg Up) */
	fgThrottleMove(0, 0.01);
	return;
    case 51: /* numeric keypad 3 (Pg Dn) */
	fgThrottleMove(0, -0.01);
	return;
    case 122:
	fogDensity *= 1.10;
	glFogf(GL_FOG_END, fogDensity);
	printf("Fog density = %.4f\n", fogDensity);
	return;
    case 90:
	fogDensity /= 1.10;
	glFogf(GL_FOG_END, fogDensity);
	printf("Fog density = %.4f\n", fogDensity);
	return;
    case 27: /* ESC */
	exit(0);
    }

}


/* Handle "special" keyboard events */
void GLUTspecialkey(unsigned char k, int x, int y) {
    struct control_params *c;

    c = &current_aircraft.controls;

    printf("Special key hit = %d\n", k);

    switch (k) {
    case GLUT_KEY_UP:
	fgElevMove(0.01);
	return;
    case GLUT_KEY_DOWN:
	fgElevMove(-0.01);
	return;
    case GLUT_KEY_LEFT:
	fgAileronMove(-0.01);
	return;
    case GLUT_KEY_RIGHT:
	fgAileronMove(0.01);
	return;
    }

}


/* $Log$
/* Revision 1.7  1997/05/31 19:16:25  curt
/* Elevator trim added.
/*
 * Revision 1.6  1997/05/31 04:13:52  curt
 * WE CAN NOW FLY!!!
 *
 * Continuing work on the LaRCsim flight model integration.
 * Added some MSFS-like keyboard input handling.
 *
 * Revision 1.5  1997/05/30 23:26:19  curt
 * Added elevator/aileron controls.
 *
 * Revision 1.4  1997/05/27 17:44:31  curt
 * Renamed & rearranged variables and routines.   Added some initial simple
 * timer/alarm routines so the flight model can be updated on a regular interval.
 *
 * Revision 1.3  1997/05/23 15:40:25  curt
 * Added GNU copyright headers.
 * Fog now works!
 *
 * Revision 1.2  1997/05/23 00:35:12  curt
 * Trying to get fog to work ...
 *
 * Revision 1.1  1997/05/21 15:57:50  curt
 * Renamed due to added GLUT support.
 *
 * Revision 1.2  1997/05/19 18:22:41  curt
 * Parameter tweaking ... starting to stub in fog support.
 *
 * Revision 1.1  1997/05/16 16:05:51  curt
 * Initial revision.
 *
 */