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credits2.c
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credits2.c
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/*
* BB: The portable demo
*
* (C) 1997 by AA-group (e-mail: aa@horac.ta.jcu.cz)
*
* 3rd August 1997
* version: 1.2 [final3]
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public Licences as by published
* by the Free Software Foundation; either version 2; or (at your option)
* any later version
*
* This program is distributed in the hope that it will entertaining,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILTY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Publis License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <math.h>
#include <ctype.h>
#include <string.h>
#include <malloc.h>
#include <stdlib.h>
#include "bb.h"
#define STATE (TIME-starttime)
#undef MAXTIME
#define MAXTIME 2500000
static unsigned char *source, *target;
static void decrand()
{
if (STATE < 4000000) {
params->randomval = (4000000 - STATE) * 1600 / 4000000;
}
else
params->randomval = 0;
}
static void pryc()
{
float size = 3 + (STATE) * 10.0 / MAXTIME;
float radius = (STATE) * aa_imgwidth(context) / MAXTIME;
float yradius = (STATE) * aa_imgheight(context) / MAXTIME;
int xm = aa_imgwidth(context) / 2;
int ym = aa_imgheight(context) / 3;
clrscr();
centerprint(xm + radius * sin(STATE / 100000.0), ym + yradius * cos(STATE / 300000.0), size, 128, "The", 0);
centerprint(xm + radius * sin(STATE / 150000.0), 2 * ym + yradius * cos(STATE / 400000.0), size, 128, "END", 0);
}
#define LOGOY ((aa_scrheight(context)-LOGOHEIGHT)/2)
#define LOGOHEIGHT 6
#define YSTART 9
#define MTIME 1000000
static void getsource()
{
backconvert(0, YSTART, aa_scrwidth(context), aa_scrheight(context));
memcpy(source, context->imagebuffer + aa_imgwidth(context) * 2 * YSTART, aa_imgwidth(context) * (aa_imgheight(context) - YSTART * 2));
}
static void gettarget()
{
backconvert(0, YSTART, aa_scrwidth(context), aa_scrheight(context));
memcpy(target, context->imagebuffer + aa_imgwidth(context) * 2 * YSTART, aa_imgwidth(context) * (aa_imgheight(context) - YSTART * 2));
}
static void morphdraw()
{
int s = STATE > 0 ? (STATE < MTIME ? STATE : MTIME) : 0;
int mul = s * 256 / MTIME;
int mul1 = 256 - mul;
int i;
int size = aa_imgwidth(context) * (aa_imgheight(context) - YSTART * 2);
char *c = context->imagebuffer + aa_imgwidth(context) * 2 * YSTART;
for (i = 0; i < size; i++, c++) {
*c = (source[i] * mul1 + target[i] * mul) >> 8;
}
aa_fastrender(context, 0, YSTART, aa_scrwidth(context), aa_scrheight(context));
aa_flush(context);
emscripten_sleep(1);
}
static void morph()
{
params->dither = AA_NONE;
timestuff(0, NULL, morphdraw, MTIME);
}
static void displaya(int p)
{
int xpos = aa_scrwidth(context) / 2;
int i;
for (i = 0; i < LOGOHEIGHT; i++) {
if (xpos - p - 5 - i >= 0)
aa_puts(context, xpos - p - 5 - i, i + LOGOY, AA_NORMAL, " ");
if (xpos - p - 4 - i >= 0)
aa_puts(context, xpos - p - 4 - i, i + LOGOY, AA_NORMAL, "d");
if (xpos - p - 3 - i >= 0)
aa_puts(context, xpos - p - 3 - i, i + LOGOY, AA_NORMAL, "T");
if (xpos + p + 4 + i < aa_scrwidth(context))
aa_puts(context, xpos + p + 4 + i, i + LOGOY, AA_NORMAL, " ");
if (xpos + p + 3 + i < aa_scrwidth(context))
aa_puts(context, xpos + p + 3 + i, i + LOGOY, AA_NORMAL, "b");
if (xpos + p + 2 + i < aa_scrwidth(context))
aa_puts(context, xpos + p + 2 + i, i + LOGOY, AA_NORMAL, "T");
}
}
static void display8()
{
int i;
for (i = 0; i < LOGOHEIGHT; i++) {
aa_puts(context, aa_scrwidth(context) / 2 - 2, LOGOY + i, AA_NORMAL, "8 8");
}
}
static void displogo(int y)
{
int x = aa_scrwidth(context) / 2 - 9;
aa_puts(context, x, y + 0, AA_NORMAL, " dT8 8Tb");
aa_puts(context, x, y + 1, AA_NORMAL, " dT 8 8 Tb");
aa_puts(context, x, y + 2, AA_NORMAL, " dT 8 8 Tb");
aa_puts(context, x, y + 3, AA_NORMAL, "<PROJECT><PROJECT>");
aa_puts(context, x, y + 4, AA_NORMAL, " dT 8 8 Tb");
aa_puts(context, x, y + 5, AA_NORMAL, "dT 8 8 Tb");
}
static void displaytext(int p)
{
int i;
int x, x1, a = AA_NORMAL;
char s[2] =
{0, 0};
textclrscr();
displogo(1);
for (i = 0; i < aa_scrwidth(context); i++) {
context->textbuffer[aa_scrwidth(context) * (YSTART - 2) + i] = '_';
}
for (i = p; i < p + aa_scrheight(context) - YSTART; i++) {
if (i < textsize) {
x = 0;
x1 = 0;
for (x1 = x = 0; x < strlen(line[i]); x++, x1++) {
while (((unsigned char) line[i][x]) < 20)
a = line[i][x] - 1, x++;
if (x < strlen(line[i])) {
s[0] = line[i][x];
aa_puts(context, x1, i - p + YSTART, a, s);
}
}
}
else {
x = 0;
aa_puts(context, x, i - p + YSTART, AA_NORMAL, "~");
}
}
if (dual) {
int sh = aa_scrheight(context) - YSTART;
for (i = p; i < p + (aa_scrheight(context) - YSTART); i++) {
if (i + sh < textsize) {
x = 0;
x1 = 0;
for (x1 = x = 0; x < strlen(line[i + sh]); x++, x1++) {
while (((unsigned char) line[i + sh][x]) < 20)
a = line[i + sh][x] - 1, x++;
if (x < strlen(line[i + sh])) {
s[0] = line[i + sh][x];
aa_puts(context, x1 + aa_scrwidth(context) / 2, i - p + YSTART, a, s);
}
}
}
else {
x = 0;
aa_puts(context, x + aa_scrwidth(context) / 2, i - p + YSTART, AA_NORMAL, "~");
}
}
}
}
static void decbright(void)
{
params->bright = -(TIME - starttime) * 256 / (endtime - starttime);
}
void credits2(void)
{
int i, ch;
int p;
int plast = -1;
clrscr();
centerprint(aa_imgwidth(context) / 2, aa_imgheight(context) / 3, 3, 128, "The", 0);
centerprint(aa_imgwidth(context) / 2, 2 * aa_imgheight(context) / 3, 3, 128, "END", 0);
drawptr = decrand;
params->randomval = 50;
timestuff(0, NULL, draw, 5000000);
drawptr = NULL;
params->randomval = 0;
drawptr = pryc;
timestuff(0, NULL, draw, MAXTIME);
drawptr = NULL;
clrscr();
draw();
load_song("bb3.s3m");
bbupdate();
starttime = endtime = TIME;
play();
bbwait(1);
for (i = 0; i < LOGOHEIGHT; i++) {
aa_puts(context, aa_scrwidth(context) / 2 - 2, LOGOY + i, AA_BOLD, "8 8");
if (i)
aa_puts(context, aa_scrwidth(context) / 2 - 2, LOGOY + i - 1, AA_NORMAL, "8 8");
bbflushwait(100000);
}
aa_puts(context, aa_scrwidth(context) / 2 - 2, LOGOY + i - 1, AA_NORMAL, "8 8");
#define LWIDTH
for (i = aa_scrwidth(context) / 2; i; i--) {
display8();
displaya(i);
bbflushwait(10000);
}
for (; i < 100; i++) {
textclrscr();
displaya(10 * sin(i * M_PI / 100));
display8();
bbflushwait(10000);
}
aa_puts(context, aa_scrwidth(context) / 2 - 9, LOGOY + 3, AA_DIM, "<PROJECT><PROJECT>");
bbflushwait(100000);
aa_puts(context, aa_scrwidth(context) / 2 - 9, LOGOY + 3, AA_NORMAL, "<PROJECT><PROJECT>");
bbflushwait(100000);
aa_puts(context, aa_scrwidth(context) / 2 - 9, LOGOY + 3, AA_BOLD, "<PROJECT><PROJECT>");
bbflushwait(100000);
aa_puts(context, aa_scrwidth(context) / 2 - 9, LOGOY + 3, AA_NORMAL, "<PROJECT><PROJECT>");
bbflushwait(100000);
bbwait(1000000);
for (i = LOGOY; i > 1; i--) {
textclrscr();
displogo(i);
bbflushwait(30000);
}
source = malloc(aa_imgwidth(context) * (aa_imgheight(context)));
target = malloc(aa_imgwidth(context) * (aa_imgheight(context)));
params->dither = AA_NONE;
format(dual ? aa_scrwidth(context) / 2 : aa_scrwidth(context));
p = 0;
while (1) {
if (p != plast) {
getsource();
displaytext(p);
gettarget();
morph();
displaytext(p);
aa_flush(context);
emscripten_sleep(1);
plast = p;
}
again:
emscripten_sleep(100);
#ifndef __DJGPP__
//ch = aa_getkey(context, 100);
ch = AA_NONE;
#else
while ((ch = bbupdate()) == AA_NONE) ;
#endif
switch (ch) {
case '1':
load_song("bb.s3m");
bbupdate();
play();
break;
case '2':
load_song("bb2.s3m");
bbupdate();
play();
break;
case '3':
load_song("bb3.s3m");
bbupdate();
play();
break;
case 'b':
case 'k':
case 'B':
case 'K':
case AA_BACKSPACE:
case AA_UP:
p -= (aa_scrheight(context) - YSTART) / 2 * (dual + 1);
if (p < 0)
p = 0;
break;
case AA_DOWN:
case AA_LEFT:
case 'f':
case 'F':
case ' ':
case 'j':
case 'J':
p += (aa_scrheight(context) - YSTART) / 2 * (dual + 1);
if (p > textsize)
p = textsize;
break;
case 'q':
case 'Q':
case AA_ESC:
finish_stuff = 0;
backconvert(0, 0, aa_scrwidth(context), aa_scrheight(context));
bbupdate();
starttime = endtime = TIME;
drawptr = decbright;
timestuff(0, NULL, draw, 1000000);
textclrscr();
drawptr = NULL;
aa_flush(context);
emscripten_sleep(1);
free(source);
free(target);
return;
default:
goto again;
}
bbupdate();
starttime = endtime = TIME;
}
}