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credits.c
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credits.c
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/* frog blast the vent core
* GPL... (C) 2005 coob
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <fcntl.h>
#include <unistd.h>
#include "pz.h"
#include "ipod.h"
#include "matrixfont.h"
static GR_WINDOW_ID credits_wid;
static GR_WINDOW_INFO credits_info;
static GR_GC_ID credits_gc;
static GR_TIMER_ID credits_timer;
static char *stream = NULL;
static char *cnames[]={"Floydzilla", "by Dan Long", "DansFloyd.com",
"IPL DEVELOPERS",
"Bernard Leach", "Matthew J. Sahagian",
"Courtney Cavin", "matz-josh", "Matthis Rouch",
"ansi", "Jens Taprogge", "Fredrik Bergholtz",
"Jeffrey Nelson", "Scott Lawrence",
"Cameron Nishiyama", "Prashant V", "Alastair S", "\0"};
static int txt_stream_start, txt_stream_end, txt_status, txt_len;
static int cols, curname = 0;
static int cnt = 0, cnt2 = 0, blipstep = 0;
#define PHOTO (screen_info.bpp == 16)
#define NOWHERE 0
#define ALLIN 2
#define CENTRING 3
#define CENTRE 4
#define FADE 6
#define NEXT 8
static void credits_free_var(void)
{
if (stream != NULL) {
free(stream);
stream = NULL;
}
curname = 0; cnt = 0; cnt2 = 0;
}
static void credits_exit(void)
{
credits_free_var();
GrDestroyGC(credits_gc);
GrDestroyTimer(credits_timer);
pz_close_window(credits_wid);
}
static void credits_die(char *msg)
{
pz_error(msg);
credits_exit();
}
static void *credits_malloc(size_t howmuch)
{
void *r;
if (!(r = malloc(howmuch)))
credits_die("This iPod will self-destruct in 5 seconds...");
return r;
}
static void credits_var_init(void)
{
int i;
GrGetWindowInfo(credits_wid, &credits_info);
GrClearWindow(credits_wid, GR_FALSE);
cols = (credits_info.width/COL_W)+1;
stream = credits_malloc(cols);
for (i = 0; i < cols; i++) {
stream[i] = ' ';
}
}
static void credits_init(void)
{
static int seedinit = 0;
if (!seedinit)
{
int fd, data;
fd = open("/dev/random", O_RDONLY);
if (fd == -1) {
data = (int)time(NULL);
}
else {
read(fd, &data, sizeof(data));
close(fd);
}
srand(data);
seedinit = 1;
}
credits_free_var();
credits_var_init();
}
static void credits_blit_char(const int col, int cha, GR_COLOR colour,
const int fillbg)
{
static int centre;
if (!centre) {
centre = (credits_info.height / 2) - (COL_H / 2);
}
if (fillbg) {
GrSetGCUseBackground(credits_gc, GR_TRUE);
GrSetGCBackground(credits_gc, BLACK);
} else {
GrSetGCUseBackground(credits_gc, GR_FALSE);
}
/* TRANSMUTATEULATE THE HOTDOG */
if (cha == ' ') {
cha = 0;
} else if (cha >= '0' && cha <= '9') {
cha = cha - 47;
} else if (cha >= 'A' && cha <= 'Z') {
cha = cha - 54;
} else if (cha >= 'a' && cha <= 'z') { // lowercase -> upper
cha = cha - 86;
} else if (cha >= 1 && cha <= 26) { // c0d3
cha = cha + 36;
} else {
cha = 34; // 'X'
}
GrSetGCForeground(credits_gc, colour);
GrBitmap (credits_wid, credits_gc, COL_W*col, centre, COL_W, COL_H,
matrix_code_font[cha]);
}
static void credits_newtext(void)
{
txt_status = NOWHERE;
txt_len = strlen(cnames[curname]);
txt_stream_start = ((cols - 1)/ 2) - (txt_len / 2) - 1;
txt_stream_end = txt_stream_start + txt_len;
}
static void credits_clear_screen(const int exlcude_stream)
{
GrSetGCForeground(credits_gc, BLACK);
if (exlcude_stream) {
GrFillRect(credits_wid, credits_gc, 0, 0, credits_info.width,
(credits_info.height / 2) - (COL_H / 2));
GrFillRect(credits_wid, credits_gc, 0,
(credits_info.height / 2) + (COL_H / 2), credits_info.width,
(credits_info.height / 2) - (COL_H / 2));
} else {
GrFillRect(credits_wid, credits_gc, 0, 0,
credits_info.width, credits_info.height);
}
}
static void credits_stream_push(void)
{
int i, draw;
GR_COLOR colour;
for (i = cols - 1; i > 0; i--) {
if (txt_status >= CENTRE
&& i == txt_stream_end + 1) {
stream[i] = stream[i - txt_len - 1];
i -= txt_len;
} else {
stream[i] = stream[i - 1];
}
if (txt_status == ALLIN && i == txt_stream_end) {
txt_status = CENTRING;
}
if (txt_status == CENTRING && i == txt_stream_start) {
if (cnt2 == txt_stream_start)
txt_status = CENTRE;
else
cnt2++;
}
}
if ((cols - cnt) == txt_stream_end && txt_status == NOWHERE) {
txt_stream_end--;
stream[0] = cnames[curname][txt_stream_end - txt_stream_start];
if (txt_stream_end == txt_stream_start) {
txt_status = ALLIN;
txt_stream_end = txt_stream_start + txt_len;
}
} else if (txt_status == FADE) {
stream[0] = ' ';
} else {
stream[0] = rand() % 26 + 1;
}
for (i = 0; i < cols; i++) {
draw = 1;
if ((i > cnt2 && i <= cnt2 + txt_len && txt_status >= CENTRE) ||
(i >= cnt2 && i < cnt2 + txt_len && txt_status == CENTRING)) {
colour = WHITE;
draw = 0;
} else if (i <= txt_stream_end) {
colour = PHOTO ? GR_RGB(0, (int) rand() % 35 + 220, 0) : LTGRAY;
} else {
colour = PHOTO ? GR_RGB(0, (int) rand() % 100 + 60, 0) : GRAY;
}
//if (txt_status > CENTRE && txt_status < NEXT && !draw) {
//if ((txt_status == CENTRING || txt_status == CENTRE) && !draw) {
// credits_blit_char(i, stream[i], colour, 0);
//} else {
credits_blit_char(i, stream[i], colour, 1);
//}
}
/* if (txt_status >= ALLIN && blipstep < txt_len / 2 && blipstep != -1) {
blipstep++;
GrSetGCForeground(credits_gc, LTGRAY);
GrFillEllipse(credits_wid, credits_gc, (cols / 2) * COL_W,
credits_info.height / 2, blipstep * COL_W, COL_H);
} else if (txt_status == CENTRE && blipstep == txt_len / 2) {
credits_clear_screen(1);
blipstep = -1;
}*/
if (cnt == cols) {
cnt = 0;
if (txt_status >= CENTRE) {
txt_status++;
if (txt_status == NEXT) {
cnames[curname + 1] == "\0" ? curname = 0 : curname++;
cnt = 0; blipstep = 0; cnt2 = 0;
credits_newtext();
}
}
} else {
cnt++;
}
}
static void credits_do_draw(void)
{
pz_draw_header("Credits");
}
static int credits_handle_event(GR_EVENT * event)
{
int ret = 0;
switch( event->type )
{
case( GR_EVENT_TYPE_TIMER ):
credits_stream_push();
break;
case( GR_EVENT_TYPE_KEY_DOWN ):
switch( event->keystroke.ch )
{
case 'h': /* hold */
break;
case '\r':
case '\n': /* action */
break;
case 'p': /* play/pause */
case 'd': /*or this */
break;
case 'l': /* CCW spin */
break;
case 'r': /* CW spin */
break;
case 'm':
credits_exit();
ret=1;
break;
}
break;
case( GR_EVENT_TYPE_KEY_UP ):
switch( event->keystroke.ch )
{
case 'h': /* hold */
break;
}
break;
}
return ret;
}
void new_credits_window( void )
{
credits_gc = pz_get_gc(1);
GrSetGCUseBackground(credits_gc, GR_FALSE);
GrSetGCBackground(credits_gc, BLACK);
credits_wid = pz_new_window(0, 0/*HEADER_TOPLINE + 1*/, screen_info.cols,
screen_info.rows /*- (HEADER_TOPLINE + 1)*/,
credits_do_draw, credits_handle_event);
GrSelectEvents( credits_wid, GR_EVENT_MASK_TIMER|
GR_EVENT_MASK_EXPOSURE|GR_EVENT_MASK_KEY_UP|GR_EVENT_MASK_KEY_DOWN);
credits_init();
credits_newtext();
credits_timer = GrCreateTimer(credits_wid, 20);
GrMapWindow(credits_wid);
credits_clear_screen(0);
}