/**
* @brief Renders the overlays.
*/
void omsg_render( double dt )
{
int i, j;
double x, y;
omsg_t *omsg;
glFont *font;
glColour col;
/* Case nothing to do. */
if (omsg_array == NULL)
return;
/* Center. */
x = omsg_center_x - omsg_center_w/2.;
y = omsg_center_y;
/* Render. */
for (i=0; i<array_size(omsg_array); i++) {
omsg = &omsg_array[i];
/* Check if time to erase. */
omsg->duration -= dt;
if (omsg->duration < 0.) {
omsg_free( omsg );
array_erase( &omsg_array, &omsg[0], &omsg[1] );
i--;
continue;
}
/* Must have a message. */
if (omsg->msg == NULL)
continue;
/* Render. */
font = omsg_getFont( omsg->font );
memcpy( &col, omsg->col, sizeof(glColour) );
if (omsg->duration < 1.)
col.a = omsg->duration;
for (j=0; j<omsg->nlines; j++) {
y -= font->h * 1.5;
if (j>0)
gl_printRestoreLast();
gl_printMidRaw( font, omsg_center_w, x, y, &col, omsg->msg[j] );
}
}
}
/**
* @brief Sets the message for an omsg.
*/
static void omsg_setMsg( omsg_t *omsg, const char *msg )
{
int i, l, n, s, m;
glFont *font;
/* Clean up after old stuff. */
if (omsg->msg != NULL) {
for (i=0; i<omsg->nlines; i++)
free( omsg->msg[i] );
free( omsg->msg );
omsg->msg = 0;
omsg->nlines = 0;
}
/* Create data. */
l = strlen( msg );
font = omsg_getFont( omsg->font );
/* First pass size. */
n = 0;
m = 0;
while (n < l) {
s = gl_printWidthForText( font, &msg[n], omsg_center_w );
n += s+1;
m++;
}
/* Avoid zero-length malloc. */
if (m == 0)
return;
/* Second pass allocate. */
omsg->msg = malloc( m * sizeof(char*) );
omsg->nlines = m;
n = 0;
m = 0;
while (n < l) {
s = gl_printWidthForText( font, &msg[n], omsg_center_w );
omsg->msg[m] = malloc( s+1 );
nsnprintf( omsg->msg[m], s+1, "%s", &msg[n] );
m++;
n += s+1;
}
}
