void BootChapter::on_start() {
L_DEBUG("Starting boot chapter");
fade_to_black(0, /*show_loading=true*/true);
manager().switch_to_chapter("title");
}
bool cGrSkyDome::repaint( sgVec4 sky_color, sgVec4 fog_color, double sol_angle, double vis )
{
double diff, prev_sun_angle = 999.0;
sgVec3 outer_param, outer_amt, outer_diff;
sgVec3 middle_param, middle_amt, middle_diff;
int i, j;
if (prev_sun_angle == sol_angle)
return true;
prev_sun_angle = sol_angle;
//sol_angle *= SGD_RADIANS_TO_DEGREES;
// Check for sunrise/sunset condition
if ((sol_angle > 80.0))
{
sgSetVec3( outer_param,
(float)((10.0 - fabs(90.0 - sol_angle)) / 20.0),
(float)((10.0 - fabs(90.0 - sol_angle)) / 40.0),
(float)(-(10.0 - fabs(90.0 - sol_angle)) / 30.0));
sgSetVec3( middle_param,
(float)((10.0 - fabs(90.0 - sol_angle)) / 40.0),
(float)((10.0 - fabs(90.0 - sol_angle)) / 80.0),
0.0 );
sgScaleVec3( outer_diff, outer_param, 1.0f / 6.0f );
sgScaleVec3( middle_diff, middle_param, 1.0f / 6.0f );
}
else
{
sgSetVec3( outer_param, 0.0, 0.0, 0.0 );
sgSetVec3( middle_param, 0.0, 0.0, 0.0 );
sgSetVec3( outer_diff, 0.0, 0.0, 0.0 );
sgSetVec3( middle_diff, 0.0, 0.0, 0.0 );
}
// calculate transition colors between sky and fog
sgCopyVec3( outer_amt, outer_param );
sgCopyVec3( middle_amt, middle_param );
//
// First, recalulate the basic colors
//
sgVec4 center_color;
sgVec4 upper_color[12];
sgVec4 middle_color[12];
sgVec4 lower_color[12];
sgVec4 bottom_color[12];
double vis_factor, cvf = vis;
if (cvf > 45000)
cvf = 45000;
vis_factor = (vis - 1000.0) / 2000.0;
if ( vis_factor < 0.0 )
{
vis_factor = 0.0;
} else if ( vis_factor > 1.0)
{
vis_factor = 1.0;
}
for ( j = 0; j < 3; j++ )
{
diff = sky_color[j] - fog_color[j];
center_color[j] = sky_color[j]; // - (float)(diff * ( 1.0 - vis_factor ));
}
for ( i = 0; i < 6; i++ )
{
for ( j = 0; j < 3; j++ )
{
double saif = sol_angle/SG_PI;
diff = sky_color[j] - fog_color[j] * (0.8 + j * 0.2) * (0.8 + saif - ((6-i)/10));
upper_color[i][j] = sky_color[j] - (float)(diff * ( 1.0 - vis_factor * (0.7 + 0.3 * cvf/45000)));
middle_color[i][j] = sky_color[j] - (float)(diff * ( 1.0 - vis_factor * (0.1 + 0.85 * cvf/45000)))
+ middle_amt[j];
lower_color[i][j] = fog_color[j] + outer_amt[j];
if ( upper_color[i][j] > 1.0 ) { upper_color[i][j] = 1.0; }
if ( upper_color[i][j] < 0.0 ) { upper_color[i][j] = 0.0; }
if ( middle_color[i][j] > 1.0 ) { middle_color[i][j] = 1.0; }
if ( middle_color[i][j] < 0.0 ) { middle_color[i][j] = 0.0; }
if ( lower_color[i][j] > 1.0 ) { lower_color[i][j] = 1.0; }
if ( lower_color[i][j] < 0.0 ) { lower_color[i][j] = 0.0; }
}
upper_color[i][3] = middle_color[i][3] = lower_color[i][3] = 1.0;
for ( j = 0; j < 3; j++ )
{
outer_amt[j] -= outer_diff[j];
middle_amt[j] -= middle_diff[j];
}
}
sgSetVec3( outer_amt, 0.0, 0.0, 0.0 );
sgSetVec3( middle_amt, 0.0, 0.0, 0.0 );
for ( i = 6; i < 12; i++ )
{
for ( j = 0; j < 3; j++ )
{
double saif = sol_angle/SG_PI;
diff = (sky_color[j] - fog_color[j]) * (0.8 + j * 0.2) * (0.8 + saif - ((-i+12)/10));
upper_color[i][j] = sky_color[j] - (float)(diff *
( 1.0 - vis_factor * (0.7 + 0.3 * cvf/45000)));
middle_color[i][j] = sky_color[j] - (float)(diff *
( 1.0 - vis_factor * (0.1 + 0.85 * cvf/45000)))
+ middle_amt[j];
lower_color[i][j] = fog_color[j] + outer_amt[j];
if ( upper_color[i][j] > 1.0 ) { upper_color[i][j] = 1.0; }
if ( upper_color[i][j] < 0.0 ) { upper_color[i][j] = 0.0; }
if ( middle_color[i][j] > 1.0 ) { middle_color[i][j] = 1.0; }
if ( middle_color[i][j] < 0.0 ) { middle_color[i][j] = 0.0; }
if ( lower_color[i][j] > 1.0 ) { lower_color[i][j] = 1.0; }
if ( lower_color[i][j] < 0.0 ) { lower_color[i][j] = 0.0; }
}
upper_color[i][3] = middle_color[i][3] = lower_color[i][3] = 1.0;
for ( j = 0; j < 3; j++ )
{
outer_amt[j] += outer_diff[j];
middle_amt[j] += middle_diff[j];
}
}
fade_to_black( (sgVec4 *) center_color, asl * center_elev, 1);
fade_to_black( upper_color, (asl+0.05f) * upper_elev, 12);
fade_to_black( middle_color, (asl+0.05f) * middle_elev, 12);
fade_to_black( lower_color, (asl+0.05f) * lower_elev, 12);
for ( i = 0; i < 12; i++ )
{
sgCopyVec4( bottom_color[i], fog_color );
}
//
// Second, assign the basic colors to the object color arrays
//
float *slot;
int counter;
// update the center disk color arrays
counter = 0;
slot = center_disk_cl->get( counter++ );
// sgVec4 red;
// sgSetVec4( red, 1.0, 0.0, 0.0, 1.0 );
sgCopyVec4( slot, center_color );
for ( i = 11; i >= 0; i-- )
{
slot = center_disk_cl->get( counter++ );
sgCopyVec4( slot, upper_color[i] );
}
slot = center_disk_cl->get( counter++ );
sgCopyVec4( slot, upper_color[11] );
// generate the upper ring
counter = 0;
for ( i = 0; i < 12; i++ )
{
slot = upper_ring_cl->get( counter++ );
sgCopyVec4( slot, middle_color[i] );
slot = upper_ring_cl->get( counter++ );
sgCopyVec4( slot, upper_color[i] );
}
slot = upper_ring_cl->get( counter++ );
sgCopyVec4( slot, middle_color[0] );
slot = upper_ring_cl->get( counter++ );
sgCopyVec4( slot, upper_color[0] );
// generate middle ring
counter = 0;
for ( i = 0; i < 12; i++ )
{
slot = middle_ring_cl->get( counter++ );
sgCopyVec4( slot, lower_color[i] );
slot = middle_ring_cl->get( counter++ );
sgCopyVec4( slot, middle_color[i] );
}
slot = middle_ring_cl->get( counter++ );
sgCopyVec4( slot, lower_color[0] );
slot = middle_ring_cl->get( counter++ );
sgCopyVec4( slot, middle_color[0] );
// generate lower ring
counter = 0;
for ( i = 0; i < 12; i++ )
{
slot = lower_ring_cl->get( counter++ );
sgCopyVec4( slot, bottom_color[i] );
slot = lower_ring_cl->get( counter++ );
sgCopyVec4( slot, lower_color[i] );
}
slot = lower_ring_cl->get( counter++ );
sgCopyVec4( slot, bottom_color[0] );
slot = lower_ring_cl->get( counter++ );
sgCopyVec4( slot, lower_color[0] );
return true;
}
