Restructuring make, adding automatic "make dep" support.

[flightgear.git] / Main / GLmain.c

diff --git a/Main/GLmain.c b/Main/GLmain.c
index 43a587879810115189062a81c270081aee7ccaaf..02cbcb70850d654f503c8908dd120d3e4676e8e7 100644 (file)
--- a/Main/GLmain.c
+++ b/Main/GLmain.c
@@ -23,6 +23,7 @@
  * (Log is kept at end of this file)
  **************************************************************************/
 
+
 #include <math.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -37,19 +38,28 @@
     #include "GLTKkey.h"
 #endif
 
-#include "../aircraft/aircraft.h"
-#include "../scenery/scenery.h"
+#include "../Aircraft/aircraft.h"
+#include "../Scenery/scenery.h"
 #include "../mat3/mat3.h"
-#include "../timer/fg_timer.h"
+#include "../Timer/fg_timer.h"
 
 
 #define DEG_TO_RAD       0.017453292
 #define RAD_TO_DEG       57.29577951
 
+#ifndef M_PI
+#define M_PI        3.14159265358979323846     /* pi */
+#endif
+
 #ifndef PI2                                     
 #define PI2  (M_PI + M_PI)
 #endif                                                           
 
+
+#ifndef M_PI_2
+#define M_PI_2      1.57079632679489661923     /* pi/2 */
+#endif
+
 /* This is a record containing all the info for the aircraft currently
    being operated */
 struct aircraft_params current_aircraft;
@@ -65,8 +75,9 @@ extern struct mesh *mesh_ptr;
 /* Function prototypes */
 GLint fgSceneryCompile();
 static void fgSceneryDraw();
-/* pointer to terrain mesh structure */
-static GLint mesh;
+
+/* pointer to scenery structure */
+static GLint scenery, runway;
 
 /* Another hack */
 double fogDensity = 2000.0;
@@ -90,7 +101,6 @@ int use_signals = 0;
 
 static void fgInitVisuals() {
     /* if the 4th field is 0.0, this specifies a direction ... */
-    static GLfloat color[4] = { 0.3, 0.7, 0.2, 1.0 };
     static GLfloat fogColor[4] = {0.65, 0.65, 0.85, 1.0};
     
     glEnable( GL_DEPTH_TEST );
@@ -105,7 +115,6 @@ static void fgInitVisuals() {
     glEnable( GL_LIGHTING );
     glEnable( GL_LIGHT0 );
 
-    glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, color );
     glShadeModel( GL_FLAT ); /* glShadeModel( GL_SMOOTH ); */
 
     glEnable( GL_FOG );
@@ -135,7 +144,7 @@ static void fgUpdateViewParams() {
     /* Tell GL we are about to modify the projection parameters */
     glMatrixMode(GL_PROJECTION);
     glLoadIdentity();
-    gluPerspective(45.0, 1.0/win_ratio, 1.0, 6000.0);
+    gluPerspective(45.0, 1.0/win_ratio, 0.01, 6000.0);
 
     glMatrixMode(GL_MODELVIEW);
     glLoadIdentity();
@@ -145,6 +154,8 @@ static void fgUpdateViewParams() {
     pos_y = (FG_Latitude   * RAD_TO_DEG) * 3600.0;
     pos_z = FG_Altitude * 0.01; /* (Convert feet to aproximate arcsecs) */
 
+    printf("*** pos_z = %.2f\n", pos_z);
+
     /* build current rotation matrix */
     MAT3_SET_VEC(vec, 1.0, 0.0, 0.0);
     MAT3rotate(R, vec, FG_Phi);
@@ -202,7 +213,7 @@ static void fgUpdateVisuals( void ) {
     glMatrixMode(GL_MODELVIEW);
     /* glLoadIdentity(); */
 
-    /* draw terrain mesh */
+    /* draw scenery */
     fgSceneryDraw();
 
     #ifdef GLUT
@@ -262,7 +273,11 @@ void fgUpdateTimeDepCalcs(int multi_loop) {
 
 void fgInitTimeDepCalcs() {
     /* initialize timer */
+
+#ifdef USE_ITIMER
     fgTimerInit( 1.0 / DEFAULT_TIMER_HZ, fgUpdateTimeDepCalcs );
+#endif USE_ITIMER
+
 }
 
 
@@ -271,24 +286,82 @@ void fgInitTimeDepCalcs() {
  **************************************************************************/
 
 static void fgSceneryInit() {
-    /* make terrain mesh */
-    mesh = fgSceneryCompile();
+    /* make scenery */
+    scenery = fgSceneryCompile();
+    runway = fgRunwayHack(0.69, 53.07);
 }
 
 
-/* create the terrain mesh */
+/* create the scenery */
 GLint fgSceneryCompile() {
-    GLint mesh;
+    GLint scenery;
 
-    mesh = mesh2GL(mesh_ptr);
+    scenery = mesh2GL(mesh_ptr);
 
-    return(mesh);
+    return(scenery);
 }
 
 
-/* draw the terrain mesh */
+/* hack in a runway */
+GLint fgRunwayHack(double width, double length) {
+    static GLfloat concrete[4] = { 0.5, 0.5, 0.5, 1.0 };
+    static GLfloat line[4]     = { 0.9, 0.9, 0.9, 1.0 };
+    int i;
+    int num_lines = 16;
+    float line_len, line_width_2, cur_pos;
+
+    runway = glGenLists(1);
+    glNewList(runway, GL_COMPILE);
+
+    /* draw concrete */
+    glBegin(GL_POLYGON);
+    glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, concrete );
+    glNormal3f(0.0, 0.0, 1.0);
+
+    glVertex3d( 0.0,   -width/2.0, 0.0);
+    glVertex3d( 0.0,    width/2.0, 0.0);
+    glVertex3d(length,  width/2.0, 0.0);
+    glVertex3d(length, -width/2.0, 0.0);
+    glEnd();
+
+    /* draw center line */
+    glMaterialfv( GL_FRONT, GL_AMBIENT_AND_DIFFUSE, line );
+    line_len = length / ( 2 * num_lines + 1);
+    printf("line_len = %.3f\n", line_len);
+    line_width_2 = 0.02;
+    cur_pos = line_len;
+    for ( i = 0; i < num_lines; i++ ) {
+       glBegin(GL_POLYGON);
+       glVertex3d( cur_pos, -line_width_2, 0.005);
+       glVertex3d( cur_pos,  line_width_2, 0.005);
+       cur_pos += line_len;
+       glVertex3d( cur_pos,  line_width_2, 0.005);
+       glVertex3d( cur_pos, -line_width_2, 0.005);
+       cur_pos += line_len;
+       glEnd();
+    }
+
+    glEndList();
+
+    return(runway);
+}
+
+
+/* draw the scenery */
 static void fgSceneryDraw() {
-    glCallList(mesh);
+    static float z = 32.35;
+
+    glPushMatrix();
+
+    glCallList(scenery);
+
+    printf("*** Drawing runway at %.2f\n", z);
+
+    glTranslatef( -398391.28, 120070.41, 32.35);
+    glRotatef(170.0, 0.0, 0.0, 1.0);
+    glCallList(runway);
+
+    glPopMatrix();
 }
 
 
@@ -347,8 +420,7 @@ int main( int argc, char *argv[] ) {
 
     f = &current_aircraft.flight;
 
-    /* parse the scenery file */
-    parse_scenery(argv[1]);
+    printf("Flight Gear:  prototype code to test OpenGL, LaRCsim, and VRML\n\n");
 
     #ifdef GLUT
       /* initialize GLUT */
@@ -361,7 +433,7 @@ int main( int argc, char *argv[] ) {
       glutInitWindowSize(640, 480);
 
       /* Initialize the main window */
-      glutCreateWindow("Terrain Demo");
+      glutCreateWindow("Flight Gear");
     #elif MESA_TK
       /* Define initial window size */
       tkInitPosition(0, 0, 640, 480);
@@ -370,7 +442,7 @@ int main( int argc, char *argv[] ) {
       tkInitDisplayMode( TK_RGB | TK_DEPTH | TK_DOUBLE | TK_DIRECT );
 
       /* Initialize the main window */
-      if (tkInitWindow("Terrain Demo") == GL_FALSE) {
+      if (tkInitWindow("Flight Gear") == GL_FALSE) {
          tkQuit();
       }
     #endif
@@ -436,6 +508,14 @@ int main( int argc, char *argv[] ) {
     }
 
     /* build all objects */
+
+    /* parse the scenery file, and build the OpenGL call list */
+    /* this function will eventually move to the scenery management system */
+    if ( strlen(argv[1]) ) {
+       parse_scenery(argv[1]);
+    }
+
+    /* initialize the scenery */
     fgSceneryInit();
 
     #ifdef GLUT
@@ -479,9 +559,27 @@ int main( int argc, char *argv[] ) {
 
 
 /* $Log$
-/* Revision 1.17  1997/06/17 16:51:58  curt
-/* Timer interval stuff now uses gettimeofday() instead of ftime()
+/* Revision 1.23  1997/06/26 19:08:33  curt
+/* Restructuring make, adding automatic "make dep" support.
 /*
+ * Revision 1.22  1997/06/25 15:39:47  curt
+ * Minor changes to compile with rsxnt/win32.
+ *
+ * Revision 1.21  1997/06/22 21:44:41  curt
+ * Working on intergrating the VRML (subset) parser.
+ *
+ * Revision 1.20  1997/06/21 17:12:53  curt
+ * Capitalized subdirectory names.
+ *
+ * Revision 1.19  1997/06/18 04:10:31  curt
+ * A couple more runway tweaks ...
+ *
+ * Revision 1.18  1997/06/18 02:21:24  curt
+ * Hacked in a runway
+ *
+ * Revision 1.17  1997/06/17 16:51:58  curt
+ * Timer interval stuff now uses gettimeofday() instead of ftime()
+ *
  * Revision 1.16  1997/06/17 04:19:16  curt
  * More timer related tweaks with respect to view direction changes.
  *