void CCube::RenderText()
{ // this draws the necessary text for the cube view
// draw text on top
if (! bIsQCNLive) {
char buf[256];
// left of window informative text
if (!qcn_graphics::g_bFullScreen) { // don't show the button press text in fullscreen/screensaver mode
mode_unshaded();
qcn_graphics::mode_ortho_qcn();
sprintf(buf, "Press 'Q' to return to");
TTFont::ttf_render_string(qcn_graphics::cfTextAlpha, 0, .32, 0, MSG_SIZE_NORMAL, yellow, TTF_ARIAL, buf);
sprintf(buf, "seismic sensor view");
TTFont::ttf_render_string(qcn_graphics::cfTextAlpha, 0, .30, 0, MSG_SIZE_NORMAL, yellow, TTF_ARIAL, buf);
ortho_done();
}
// print a "legend"
mode_unshaded();
qcn_graphics::mode_ortho_qcn();
TTFont::ttf_render_string(qcn_graphics::cfTextAlpha, 0, .27, 0, MSG_SIZE_NORMAL, red, TTF_ARIAL, "Red is Significance");
TTFont::ttf_render_string(qcn_graphics::cfTextAlpha, 0, .25, 0, MSG_SIZE_NORMAL, blue, TTF_ARIAL, "Blue is Z-axis");
TTFont::ttf_render_string(qcn_graphics::cfTextAlpha, 0, .23, 0, MSG_SIZE_NORMAL, yellow, TTF_ARIAL, "Yellow is Y-axis");
TTFont::ttf_render_string(qcn_graphics::cfTextAlpha, 0, .21, 0, MSG_SIZE_NORMAL, green, TTF_ARIAL, "Green is X-axis");
TTFont::ttf_render_string(qcn_graphics::cfTextAlpha, 0, .19, 0, MSG_SIZE_NORMAL, cyan, TTF_ARIAL, "Cyan is Magnitude");
TTFont::ttf_render_string(qcn_graphics::cfTextAlpha, 0, .17, 0, MSG_SIZE_NORMAL, magenta, TTF_ARIAL, "Magenta is Variance");
ortho_done();
}
// NB: draw_text_user called automatically from qcn_graphics to show BOINC username, CPU time etc
}
// draw the starfield,
// move stars
//
void STARFIELD::update_stars(float dt) {
int i;
mode_ortho();
mode_lines();
glColor4f(1.0, 1.0, 1.0, 1.0);
for (i=0; i<nstars; i++) {
stars[i].z -= speed*dt/500;
if (stars[i].z < 0) stars[i].z += zmax;
if (stars[i].z > zmax) stars[i].z -= zmax;
double x = stars[i].x/stars[i].z;
double y = stars[i].y/stars[i].z;
x = (x*zmax+1)/2;
y = (y*zmax+1)/2;
if (stars[i].z > zmax/2) glPointSize(1);
else glPointSize(2);
glBegin(GL_POINTS);
glVertex2f((GLfloat)x, (GLfloat)y);
glEnd();
}
ortho_done();
}
