ENTRYPOINT void draw_providence(ModeInfo * mi)
{
providencestruct *mp;
Display *display = MI_DISPLAY(mi);
Window window = MI_WINDOW(mi);
if(!providence)
return;
mp = &providence[MI_SCREEN(mi)];
MI_IS_DRAWN(mi) = True;
if(!mp->glx_context)
return;
glXMakeCurrent(display, window, *(mp->glx_context));
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
/* modify camera */
if(fabs(mp->camera_velocity) > EPSILON) {
mp->camera_z = max(min(mp->camera_z + 0.1*mp->camera_velocity, -4.0), -12.0);
mp->camera_velocity = 0.95*mp->camera_velocity;
}
/* rotate providence */
glTranslatef(0.0, 0.0, mp->camera_z + sin(mp->theta/4.0));
glRotatef(10.0+20.0*sin(mp->theta/2.0), 1.0, 0.0, 0.0);
gltrackball_rotate(mp->trackball);
glRotatef(mp->theta * 180.0 / Pi, 0.0, -1.0, 0.0);
/* draw providence */
draw_providence_strip(mi);
glPopMatrix();
if(MI_IS_FPS(mi)) do_fps (mi);
glFlush();
glXSwapBuffers(display, window);
/* update */
mp->currenttime += 1.0 / FPS;
mp->theta = mp->currenttime / 2.0 * mp->theta_scale;
update_particles(mp);
}
ENTRYPOINT void draw_providence(ModeInfo * mi)
{
providencestruct *mp;
Display *display = MI_DISPLAY(mi);
Window window = MI_WINDOW(mi);
if(!providence)
return;
mp = &providence[MI_SCREEN(mi)];
MI_IS_DRAWN(mi) = True;
if(!mp->glx_context)
return;
glXMakeCurrent(display, window, *(mp->glx_context));
/* setup twoside lighting */
glLightfv(GL_LIGHT0, GL_AMBIENT, ambient2);
glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
glLightfv(GL_LIGHT0, GL_POSITION, mp->position0);
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient);
glLightModelfv(GL_LIGHT_MODEL_TWO_SIDE, lmodel_twoside);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_NORMALIZE);
glFrontFace(GL_CCW);
/* glDisable(GL_CULL_FACE); */
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glShadeModel(GL_SMOOTH);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_REPEAT);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glRotatef(current_device_rotation(), 0, 0, 1);
/* modify camera */
if(fabs(mp->camera_velocity) > EPSILON) {
mp->camera_z = max(min(mp->camera_z + 0.1*mp->camera_velocity, -4.0), -12.0);
mp->camera_velocity = 0.95*mp->camera_velocity;
}
/* rotate providence */
glTranslatef(0.0, 0.0, mp->camera_z + sin(mp->theta/4.0));
glRotatef(10.0+20.0*sin(mp->theta/2.0), 1.0, 0.0, 0.0);
gltrackball_rotate(mp->trackball);
glRotatef(mp->theta * 180.0 / Pi, 0.0, -1.0, 0.0);
# ifdef HAVE_MOBILE /* Keep it the same relative size when rotated. */
{
GLfloat h = MI_HEIGHT(mi) / (GLfloat) MI_WIDTH(mi);
int o = (int) current_device_rotation();
if (o != 0 && o != 180 && o != -180)
glScalef (1/h, 1/h, 1/h);
}
# endif
/* draw providence */
draw_providence_strip(mi);
glPopMatrix();
if(MI_IS_FPS(mi)) do_fps (mi);
glFlush();
glXSwapBuffers(display, window);
/* update */
mp->currenttime += 1.0 / FPS;
mp->theta = mp->currenttime / 2.0 * mp->theta_scale;
update_particles(mp);
}
