From 6438a27244e91db40da97fa959cd40f97178dcf9 Mon Sep 17 00:00:00 2001
From: curt <curt>
Date: Thu, 17 Sep 1998 18:35:30 +0000
Subject: [PATCH] Added F8 to toggle fog and F9 to toggle texturing.

---
 Main/GLUTkey.cxx | 40 +++++++++++++++++++++++++++++++++----
 Main/options.hxx | 22 ++++++++++++++++++++
 Main/views.cxx   | 52 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 110 insertions(+), 4 deletions(-)

diff --git a/Main/GLUTkey.cxx b/Main/GLUTkey.cxx
index 00fbd831c..24b850396 100644
--- a/Main/GLUTkey.cxx
+++ b/Main/GLUTkey.cxx
@@ -47,6 +47,7 @@
 #include <Debug/fg_debug.h>
 #include <GUI/gui.h>
 #include <Include/fg_constants.h>
+#include <Objects/material.hxx>
 #include <PUI/pu.h>
 #include <Time/light.hxx>
 #include <Weather/weather.h>
@@ -78,7 +79,6 @@ void GLUTkey(unsigned char k, int x, int y) {
     fgVIEW *v;
     struct fgWEATHER *w;
     float fov, tmp;
-    int status;
 
     c = current_aircraft.controls;
     f = current_aircraft.flight;
@@ -299,8 +299,37 @@ void GLUTspecialkey(int k, int x, int y) {
     } else {
         fgPrintf( FG_INPUT, FG_DEBUG, "\n");
 	switch (k) {
+ 	case GLUT_KEY_F8: /* F8 toggles fog ... off fastest nicest... */
+	    current_options.cycle_fog();
+	
+	    if ( current_options.get_fog() == fgOPTIONS::FG_FOG_DISABLED ) {
+		fgPrintf( FG_INPUT, FG_INFO, "Fog disabled\n" );
+	    } else if ( current_options.get_fog() == 
+			fgOPTIONS::FG_FOG_FASTEST )
+	    {
+		fgPrintf( FG_INPUT, FG_INFO, 
+			  "Fog enabled, hint set to fastest\n" );
+	    } else if ( current_options.get_fog() ==
+			fgOPTIONS::FG_FOG_NICEST )
+	    {
+		fgPrintf( FG_INPUT, FG_INFO,
+			  "Fog enabled, hint set to nicest\n" );
+	    }
+
+ 	    return;
+ 	case GLUT_KEY_F9: /* F9 toggles textures on and off... */
+	    if ( material_mgr.get_textures_loaded() ) {
+		current_options.get_textures() ?
+		    current_options.set_textures(false) :
+		    current_options.set_textures(true);
+		fgPrintf( FG_INPUT, FG_INFO, "Toggling texture\n" );
+	    } else {
+		fgPrintf( FG_INPUT, FG_INFO, 
+			  "No textures loaded, cannot toggle\n" );
+	    }
+ 	    return;
 	case GLUT_KEY_F10: /* F10 toggles menu on and off... */
-	    printf("Invoking call back function");
+	    fgPrintf(FG_INPUT, FG_INFO, "Invoking call back function");
 	    hideMenuButton -> 
 		setValue ((int) !(hideMenuButton -> getValue() ) );
 	    hideMenuButton -> invokeCallback();
@@ -347,9 +376,12 @@ void GLUTspecialkey(int k, int x, int y) {
 
 
 /* $Log$
-/* Revision 1.22  1998/09/15 04:27:27  curt
-/* Changes for new Astro code.
+/* Revision 1.23  1998/09/17 18:35:30  curt
+/* Added F8 to toggle fog and F9 to toggle texturing.
 /*
+ * Revision 1.22  1998/09/15 04:27:27  curt
+ * Changes for new Astro code.
+ *
  * Revision 1.21  1998/08/29 13:09:25  curt
  * Changes to event manager from Bernie Bright.
  *
diff --git a/Main/options.hxx b/Main/options.hxx
index 76dc26494..fbf9e8002 100644
--- a/Main/options.hxx
+++ b/Main/options.hxx
@@ -35,6 +35,13 @@
 #  include <config.h>
 #endif
 
+#ifdef HAVE_WINDOWS_H
+#  include <windows.h>
+#endif
+
+#include <GL/glut.h>
+#include <XGL/xgl.h>
+
 #include <string>
 
 #ifdef NEEDNAMESPACESTD
@@ -163,6 +170,18 @@ public:
     // Update functions
     void set_hud_status( bool status ) { hud_status = status; }
     void set_fov( double amount ) { fov = amount; }
+    void set_textures( bool status ) { textures = status; }
+    void cycle_fog( void ) { 
+	if ( fog == FG_FOG_DISABLED ) {
+	    fog = FG_FOG_FASTEST;
+	} else if ( fog == FG_FOG_FASTEST ) {
+	    fog = FG_FOG_NICEST;
+	    xglHint ( GL_FOG_HINT, GL_NICEST );
+	} else if ( fog == FG_FOG_NICEST ) {
+	    fog = FG_FOG_DISABLED;
+	    xglHint ( GL_FOG_HINT, GL_FASTEST );
+	}
+    }
 
 private:
 
@@ -182,6 +201,9 @@ extern fgOPTIONS current_options;
 
 
 // $Log$
+// Revision 1.18  1998/09/17 18:35:31  curt
+// Added F8 to toggle fog and F9 to toggle texturing.
+//
 // Revision 1.17  1998/09/08 21:40:10  curt
 // Fixes by Charlie Hotchkiss.
 //
diff --git a/Main/views.cxx b/Main/views.cxx
index 6d21d920c..8ec456d4f 100644
--- a/Main/views.cxx
+++ b/Main/views.cxx
@@ -538,12 +538,64 @@ void fgVIEW::UpdateWorldToEye( fgFLIGHT *f ) {
 }
 
 
+#if 0
+// Reject non viewable spheres from current View Frustrum by Curt
+// Olson curt@me.umn.edu and Norman Vine nhv@yahoo.com with 'gentle
+// guidance' from Steve Baker sbaker@link.com
+int
+fgVIEW::SphereClip( const fgPoint3d *cp,
+			const double radius )
+{
+    double x1, y1;
+
+    MAT3vec eye;	
+    double *mat;
+    double x, y, z;
+
+    x = cp->x;
+    y = cp->y;
+    z = cp->z;
+	
+    mat = (double *)(WORLD_TO_EYE);
+	
+    eye[2] =  x*mat[2] + y*mat[6] + z*mat[10] + mat[14];
+	
+    // Check near and far clip plane
+    if( ( eye[2] > radius ) ||
+	( eye[2] + radius + current_weather.visibility < 0) )
+	// ( eye[2] + radius + far_plane < 0) )
+    {
+	return 1;
+    }
+	
+    // check right and left clip plane (from eye perspective)
+    x1 = radius * fov_x_clip;
+    eye[0] = (x*mat[0] + y*mat[4] + z*mat[8] + mat[12]) * slope_x;
+    if( (eye[2] > -(eye[0]+x1)) || (eye[2] > (eye[0]-x1)) ) {
+	return(1);
+    }
+	
+    // check bottom and top clip plane (from eye perspective)
+    y1 = radius * fov_y_clip;
+    eye[1] = (x*mat[1] + y*mat[5] + z*mat[9] + mat[13]) * slope_y; 
+    if( (eye[2] > -(eye[1]+y1)) || (eye[2] > (eye[1]-y1)) ) {
+	return 1;
+    }
+
+    return 0;
+}
+#endif
+
+
 // Destructor
 fgVIEW::~fgVIEW( void ) {
 }
 
 
 // $Log$
+// Revision 1.21  1998/09/17 18:35:33  curt
+// Added F8 to toggle fog and F9 to toggle texturing.
+//
 // Revision 1.20  1998/09/08 15:04:35  curt
 // Optimizations by Norman Vine.
 //
-- 
2.39.2