1 /**************************************************************************
2 * scenery.c -- data structures and routines for managing scenery.
4 * Written by Curtis Olson, started May 1997.
6 * Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of the
11 * License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 * (Log is kept at end of this file)
24 **************************************************************************/
37 #include <Include/general.h>
38 #include <Main/fg_debug.h>
39 #include <Scenery/obj.h>
40 #include <Scenery/scenery.h>
43 /* Temporary hack until we get the scenery management system running */
47 /* Shared structure to hold current scenery parameters */
48 struct fgSCENERY scenery;
51 /* Initialize the Scenery Management system */
52 void fgSceneryInit( void ) {
53 fgPrintf(FG_TERRAIN, FG_INFO, "Initializing scenery subsystem\n");
55 /* set the default terrain detail level */
56 scenery.terrain_skip = 6;
60 /* Tell the scenery manager where we are so it can load the proper data, and
61 * build the proper structures. */
62 void fgSceneryUpdate(double lon, double lat, double elev) {
68 /* a hardcoded hack follows */
70 /* this routine should parse the file, and make calls back to the
71 * scenery management system to build the appropriate structures */
73 strcat(path, g->root_dir);
74 strcat(path, "/Scenery/");
75 strcat(path, "mesa-e.obj");
77 fgPrintf(FG_TERRAIN, FG_DEBUG, " Loading Scenery: %s\n", path);
79 area_terrain = fgObjLoad(path, &scenery.center);
83 /* Render out the current scene */
84 void fgSceneryRender( void ) {
85 static GLfloat terrain_color[4] = { 0.6, 0.8, 0.4, 1.0 };
86 static GLfloat terrain_ambient[4];
87 static GLfloat terrain_diffuse[4];
90 for ( i = 0; i < 4; i++ ) {
91 terrain_ambient[i] = terrain_color[i] * 0.5;
92 terrain_diffuse[i] = terrain_color[i];
95 xglMaterialfv(GL_FRONT, GL_AMBIENT, terrain_ambient);
96 xglMaterialfv(GL_FRONT, GL_DIFFUSE, terrain_diffuse);
98 xglCallList(area_terrain);
103 /* Revision 1.34 1998/01/27 03:26:43 curt
104 /* Playing with new fgPrintf command.
106 * Revision 1.33 1998/01/19 19:27:17 curt
107 * Merged in make system changes from Bob Kuehne <rpk@sgi.com>
108 * This should simplify things tremendously.
110 * Revision 1.32 1998/01/19 18:40:37 curt
111 * Tons of little changes to clean up the code and to remove fatal errors
112 * when building with the c++ compiler.
114 * Revision 1.31 1998/01/13 00:23:11 curt
115 * Initial changes to support loading and management of scenery tiles. Note,
116 * there's still a fair amount of work left to be done.
118 * Revision 1.30 1998/01/07 03:22:29 curt
119 * Moved astro stuff to .../Src/Astro/
121 * Revision 1.29 1997/12/30 20:47:52 curt
122 * Integrated new event manager with subsystem initializations.
124 * Revision 1.28 1997/12/15 23:55:02 curt
125 * Add xgl wrappers for debugging.
126 * Generate terrain normals on the fly.
128 * Revision 1.27 1997/12/12 21:41:30 curt
129 * More light/material property tweaking ... still a ways off.
131 * Revision 1.26 1997/12/12 19:52:58 curt
132 * Working on lightling and material properties.
134 * Revision 1.25 1997/12/10 22:37:51 curt
135 * Prepended "fg" on the name of all global structures that didn't have it yet.
136 * i.e. "struct WEATHER {}" became "struct fgWEATHER {}"
138 * Revision 1.24 1997/12/08 22:51:18 curt
139 * Enhanced to handle ccw and cw tri-stripe winding. This is a temporary
140 * admission of defeat. I will eventually go back and get all the stripes
141 * wound the same way (ccw).
143 * Revision 1.23 1997/11/25 19:25:37 curt
144 * Changes to integrate Durk's moon/sun code updates + clean up.
146 * Revision 1.22 1997/10/28 21:00:22 curt
147 * Changing to new terrain format.
149 * Revision 1.21 1997/10/25 03:24:24 curt
150 * Incorporated sun, moon, and star positioning code contributed by Durk Talsma.
152 * Revision 1.20 1997/10/25 03:18:27 curt
153 * Incorporated sun, moon, and planet position and rendering code contributed
156 * Revision 1.19 1997/09/05 14:17:30 curt
157 * More tweaking with stars.
159 * Revision 1.18 1997/09/05 01:35:59 curt
160 * Working on getting stars right.
162 * Revision 1.17 1997/08/29 17:55:27 curt
163 * Worked on properly aligning the stars.
165 * Revision 1.16 1997/08/27 21:32:29 curt
166 * Restructured view calculation code. Added stars.
168 * Revision 1.15 1997/08/27 03:30:32 curt
169 * Changed naming scheme of basic shared structures.
171 * Revision 1.14 1997/08/25 20:27:24 curt
172 * Merged in initial HUD and Joystick code.
174 * Revision 1.13 1997/08/22 21:34:41 curt
175 * Doing a bit of reorganizing and house cleaning.
177 * Revision 1.12 1997/08/19 23:55:08 curt
178 * Worked on better simulating real lighting.
180 * Revision 1.11 1997/08/13 20:24:22 curt
181 * Changed default detail level.
183 * Revision 1.10 1997/08/06 00:24:30 curt
184 * Working on correct real time sun lighting.
186 * Revision 1.9 1997/08/04 17:08:11 curt
187 * Testing cvs on IRIX 6.x
189 * Revision 1.8 1997/07/18 23:41:27 curt
190 * Tweaks for building with Cygnus Win32 compiler.
192 * Revision 1.7 1997/07/16 20:04:52 curt
193 * Minor tweaks to aid Win32 port.
195 * Revision 1.6 1997/07/14 16:26:05 curt
196 * Testing/playing -- placed objects randomly across the entire terrain.
198 * Revision 1.5 1997/07/11 03:23:19 curt
199 * Solved some scenery display/orientation problems. Still have a positioning
200 * (or transformation?) problem.
202 * Revision 1.4 1997/07/11 01:30:03 curt
203 * More tweaking of terrian floor.
205 * Revision 1.3 1997/06/29 21:16:50 curt
206 * More twiddling with the Scenery Management system.
208 * Revision 1.2 1997/06/27 20:03:37 curt
209 * Working on Makefile structure.
211 * Revision 1.1 1997/06/27 02:26:30 curt