//decode an encoded line of text of bitmaps.tbl
void decode_text_line(char *p)
{
for (;*p;p++) {
encode_rotate_left(p);
*p = *p ^ BITMAP_TBL_XOR;
encode_rotate_left(p);
}
}
// decode buffer of text, preserves newlines
void decode_text(char *buf, int len)
{
char *ptr;
int i;
for (i = 0, ptr = buf; i < len; i++, ptr++)
{
if (*ptr != '\n')
{
encode_rotate_left(ptr);
*ptr = *ptr ^ BITMAP_TBL_XOR;
encode_rotate_left(ptr);
}
}
}
//load all the text strings for Descent
void load_text()
{
CFILE *tfile;
CFILE *ifile;
int len,i, have_binary = 0;
char *tptr;
char *filename="descent.tex";
if ((i=FindArg("-text"))!=0)
filename = Args[i+1];
if ((tfile = cfopen(filename,"rb")) == NULL) {
filename="descent.txb";
if ((ifile = cfopen(filename, "rb")) == NULL)
Error("Cannot open file DESCENT.TEX or DESCENT.TXB");
have_binary = 1;
len = cfilelength(ifile);
//MALLOC(text,char,len);//Won't compile... working on it..-KRB
text=malloc(len*sizeof(char));//my hack -KRB
atexit(free_text);
cfread(text,1,len,ifile);
cfclose(ifile);
} else {
int c;
char * p;
len = cfilelength(tfile);
//MALLOC(text,char,len);//Won't compile... working on it..-KRB
text=malloc(len*sizeof(char));//my hack -KRB
atexit(free_text);
//fread(text,1,len,tfile);
p = text;
do {
c = cfgetc( tfile );
if ( c != 13 )
*p++ = c;
} while ( c!=EOF );
cfclose(tfile);
}
for (i=0,tptr=text;i<N_TEXT_STRINGS;i++) {
char *p;
Text_string[i] = tptr;
tptr = strchr(tptr,'\n');
if (!tptr)
Error("Not enough strings in text file - expecting %d, found %d",N_TEXT_STRINGS,i);
if ( tptr ) *tptr++ = 0;
if (have_binary) {
for (p=Text_string[i]; p < tptr - 1; p++) {
encode_rotate_left(p);
*p = *p ^ BITMAP_TBL_XOR;
encode_rotate_left(p);
}
}
//scan for special chars (like \n)
for (p=Text_string[i];p=strchr(p,'\\');) {
char newchar;
if (p[1] == 'n') newchar = '\n';
else if (p[1] == 't') newchar = '\t';
else if (p[1] == '\\') newchar = '\\';
else
Error("Unsupported key sequence <\\%c> on line %d of file <%s>",p[1],i+1,filename);
p[0] = newchar;
sprintf(p+1, "%s", p+2);
p++;
}
}
// Assert(tptr==text+len || tptr==text+len-2);
}
//called for each level to load & setup the exit sequence
load_endlevel_data(int level_num)
{
char filename[13];
char line[LINE_LEN],*p;
CFILE *ifile;
int var,segnum,sidenum;
int exit_side, i;
int have_binary = 0;
endlevel_data_loaded = 0; //not loaded yet
try_again:
;
if (level_num<0) //secret level
strcpy(filename,Secret_level_names[-level_num-1]);
else //normal level
strcpy(filename,Level_names[level_num-1]);
if (!convert_ext(filename,"END"))
return;
ifile = cfopen(filename,"rb");
if (!ifile) {
convert_ext(filename,"TXB");
ifile = cfopen(filename,"rb");
if (!ifile)
if (level_num==1) {
return; //abort
//Error("Cannot load file text of binary version of <%s>",filename);
}
else {
level_num = 1;
goto try_again;
}
have_binary = 1;
}
//ok...this parser is pretty simple. It ignores comments, but
//everything else must be in the right place
var = 0;
while (cfgets(line,LINE_LEN,ifile)) {
if (have_binary) {
for (i = 0; i < strlen(line) - 1; i++) {
encode_rotate_left(&(line[i]));
line[i] = line[i] ^ BITMAP_TBL_XOR;
encode_rotate_left(&(line[i]));
}
p = line;
}
if ((p=strchr(line,';'))!=NULL)
*p = 0; //cut off comment
for (p=line+strlen(line)-1;p>line && isspace(*p);*p--=0);
for (p=line;isspace(*p);p++);
if (!*p) //empty line
continue;
switch (var) {
case 0: { //ground terrain
int iff_error;
ubyte pal[768];
if (terrain_bm_instance.bm_data)
free(terrain_bm_instance.bm_data);
iff_error = iff_read_bitmap(p,&terrain_bm_instance,BM_LINEAR,pal);
if (iff_error != IFF_NO_ERROR) {
mprintf((1, "File %s - IFF error: %s",p,iff_errormsg(iff_error)));
Error("File %s - IFF error: %s",p,iff_errormsg(iff_error));
}
terrain_bitmap = &terrain_bm_instance;
gr_remap_bitmap_good( terrain_bitmap, pal, iff_transparent_color, -1);
break;
}
case 1: //height map
load_terrain(p);
break;
case 2:
sscanf(p,"%d,%d",&exit_point_bmx,&exit_point_bmy);
break;
case 3: //exit heading
exit_angles.h = i2f(atoi(p))/360;
break;
case 4: { //planet bitmap
int iff_error;
ubyte pal[768];
if (satellite_bm_instance.bm_data)
free(satellite_bm_instance.bm_data);
iff_error = iff_read_bitmap(p,&satellite_bm_instance,BM_LINEAR,pal);
if (iff_error != IFF_NO_ERROR) {
mprintf((1, "File %s - IFF error: %s",p,iff_errormsg(iff_error)));
Error("File %s - IFF error: %s",p,iff_errormsg(iff_error));
}
satellite_bitmap = &satellite_bm_instance;
gr_remap_bitmap_good( satellite_bitmap, pal, iff_transparent_color, -1);
break;
}
case 5: //earth pos
case 7: { //station pos
vms_matrix tm;
vms_angvec ta;
int pitch,head;
sscanf(p,"%d,%d",&head,&pitch);
ta.h = i2f(head)/360;
ta.p = -i2f(pitch)/360;
ta.b = 0;
vm_angles_2_matrix(&tm,&ta);
if (var==5)
satellite_pos = tm.fvec;
//vm_vec_copy_scale(&satellite_pos,&tm.fvec,SATELLITE_DIST);
else
station_pos = tm.fvec;
break;
}
case 6: //planet size
satellite_size = i2f(atoi(p));
break;
}
var++;
}
Assert(var == NUM_VARS);
// OK, now the data is loaded. Initialize everything
//find the exit sequence by searching all segments for a side with
//children == -2
for (segnum=0,exit_segnum=-1;exit_segnum==-1 && segnum<=Highest_segment_index;segnum++)
for (sidenum=0;sidenum<6;sidenum++)
if (Segments[segnum].children[sidenum] == -2) {
exit_segnum = segnum;
exit_side = sidenum;
break;
}
Assert(exit_segnum!=-1);
compute_segment_center(&mine_exit_point,&Segments[exit_segnum]);
extract_orient_from_segment(&mine_exit_orient,&Segments[exit_segnum]);
compute_center_point_on_side(&mine_side_exit_point,&Segments[exit_segnum],exit_side);
vm_vec_scale_add(&mine_ground_exit_point,&mine_exit_point,&mine_exit_orient.uvec,-i2f(20));
//compute orientation of surface
{
vms_vector tv;
vms_matrix exit_orient,tm;
vm_angles_2_matrix(&exit_orient,&exit_angles);
vm_transpose_matrix(&exit_orient);
vm_matrix_x_matrix(&surface_orient,&mine_exit_orient,&exit_orient);
vm_copy_transpose_matrix(&tm,&surface_orient);
vm_vec_rotate(&tv,&station_pos,&tm);
vm_vec_scale_add(&station_pos,&mine_exit_point,&tv,STATION_DIST);
vm_vec_rotate(&tv,&satellite_pos,&tm);
vm_vec_scale_add(&satellite_pos,&mine_exit_point,&tv,SATELLITE_DIST);
vm_vector_2_matrix(&tm,&tv,&surface_orient.uvec,NULL);
vm_vec_copy_scale(&satellite_upvec,&tm.uvec,SATELLITE_HEIGHT);
}
cfclose(ifile);
endlevel_data_loaded = 1;
}
void credits_show()
{
int i, j, l, done;
CFILE * file;
char buffer[NUM_LINES][80];
grs_bitmap backdrop;
ubyte backdrop_palette[768];
int pcx_error;
int buffer_line = 0;
fix last_time;
fix time_delay = 4180 / f2fl(Scale_y); // ~ F1_0 / 12.9
int first_line_offset,extra_inc=0;
int have_bin_file = 0;
char * tempp;
grs_point scale_pts[] = FULLSCREEN_SCALE_PTS;
ubyte *fade_values = malloc(grd_curscreen->sc_h);
for (i = 0; i < grd_curscreen->sc_h; ++i) {
fade_values[i] = fade_values_200[(int)(((float)i / (float)grd_curscreen->sc_h) * 200)];
}
set_screen_mode(SCREEN_MENU);
// Clear out all tex buffer lines.
for (i=0; i<NUM_LINES; i++ ) buffer[i][0] = 0;
have_bin_file = 0;
file = cfopen( "credits.tex", "rb" );
if (file == NULL) {
file = cfopen("credits.txb", "rb");
if (file == NULL)
Error("Missing CREDITS.TEX and CREDITS.TXB file\n");
have_bin_file = 1;
}
gr_use_palette_table( "credits.256" );
header_font = gr_init_font( "font1-1.fnt" );
title_font = gr_init_font( "font2-3.fnt" );
names_font = gr_init_font( "font2-2.fnt" );
backdrop.bm_data=NULL;
pcx_error = pcx_read_bitmap("stars.pcx",&backdrop,BM_LINEAR,backdrop_palette);
if (pcx_error != PCX_ERROR_NONE) {
cfclose(file);
return;
}
songs_play_song( SONG_CREDITS, 0 );
gr_remap_bitmap_good( &backdrop,backdrop_palette, -1, -1 );
gr_set_current_canvas(NULL);
scale_bitmap(&backdrop,scale_pts);
gr_palette_fade_in( gr_palette, 32, 0 );
vfx_set_palette_sub( gr_palette );
//gr_clear_canvas(BM_XRGB(0,0,0));
key_flush();
last_time = timer_get_fixed_seconds();
done = 0;
first_line_offset = 0;
while( 1 ) {
int k;
do {
buffer_line = (buffer_line+1) % NUM_LINES;
if (cfgets( buffer[buffer_line], 80, file )) {
char *p;
if (have_bin_file) { // is this a binary tbl file
for (i = 0; i < strlen(buffer[buffer_line]) - 1; i++) {
encode_rotate_left(&(buffer[buffer_line][i]));
buffer[buffer_line][i] ^= BITMAP_TBL_XOR;
encode_rotate_left(&(buffer[buffer_line][i]));
}
}
p = strchr(&buffer[buffer_line][0],'\n');
if (p) *p = '\0';
} else {
//fseek( file, 0, SEEK_SET);
buffer[buffer_line][0] = 0;
done++;
}
} while (extra_inc--);
extra_inc = 0;
for (i=0; i<ROW_SPACING; i++ ) {
int y;
y = first_line_offset - i;
#ifndef OGLES
gr_set_current_canvas(VR_offscreen_buffer);
#endif
scale_bitmap(&backdrop, scale_pts);
for (j=0; j<NUM_LINES; j++ ) {
char *s;
l = (buffer_line + j + 1 ) % NUM_LINES;
s = buffer[l];
if ( s[0] == '!' ) {
s++;
} else if ( s[0] == '$' ) {
grd_curcanv->cv_font = header_font;
s++;
} else if ( s[0] == '*' ) {
grd_curcanv->cv_font = title_font;
s++;
} else
grd_curcanv->cv_font = names_font;
gr_bitblt_fade_table = fade_values;
tempp = strchr( s, '\t' );
if ( tempp ) {
int w, h, aw;
*tempp = 0;
gr_get_string_size( s, &w, &h, &aw );
w *= f2fl(Scale_x);
h *= f2fl(Scale_y);
gr_scale_printf( (160-w)/2, y, Scale_factor, Scale_factor, s );
gr_get_string_size( &tempp[1], &w, &h, &aw );
w *= f2fl(Scale_x);
h *= f2fl(Scale_y);
gr_scale_printf( 160+((160-w)/2), y, Scale_factor, Scale_factor, &tempp[1] );
*tempp = '\t';
} else {
gr_scale_printf( 0x8000, y, Scale_factor, Scale_factor, s );
}
gr_bitblt_fade_table = NULL;
if (buffer[l][0] == '!')
y += ROW_SPACING/2;
else
y += ROW_SPACING;
}
#ifdef OGLES
showRenderBuffer();
#else
gr_bm_ubitblt(grd_curscreen->sc_w, grd_curscreen->sc_h, 0, 0, 0, 0, &(VR_offscreen_buffer->cv_bitmap), &(grd_curscreen->sc_canvas.cv_bitmap) );
#endif
while( timer_get_fixed_seconds() < last_time+time_delay );
last_time = timer_get_fixed_seconds();
k = key_inkey();
#ifndef NDEBUG
if (k == KEY_BACKSP) {
Int3();
k=0;
}
#endif
// {
// fix ot = time_delay;
// time_delay += (keyd_pressed[KEY_X] - keyd_pressed[KEY_Z])*100;
// if (ot!=time_delay) {
// mprintf( (0, "[%x] ", time_delay ));
// }
// }
if (k == KEY_PRINT_SCREEN) {
save_screen_shot(0);
k = 0;
}
if ((k>0)||(done>NUM_LINES)) {
gr_close_font(header_font);
gr_close_font(title_font);
gr_close_font(names_font);
gr_palette_fade_out( gr_palette, 32, 0 );
gr_use_palette_table( "palette.256" );
free(backdrop.bm_data);
cfclose(file);
songs_play_song( SONG_TITLE, 1 );
return;
}
}
if (buffer[(buffer_line + 1 ) % NUM_LINES][0] == '!') {
first_line_offset -= ROW_SPACING-ROW_SPACING/2;
if (first_line_offset <= -ROW_SPACING) {
first_line_offset += ROW_SPACING;
extra_inc++;
}
}
}
free(fade_values);
}
