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/*
* XaoS, a fast portable realtime fractal zoomer
* Copyright (C) 1996,1997 by
*
* Jan Hubicka (hubicka@paru.cas.cz)
* Thomas Marsh (tmarsh@austin.ibm.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public 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.
*/
#ifdef _plan9_
#include <u.h>
#include <libc.h>
#include <stdio.h>
#else
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include "config.h"
#include <assert.h>
#endif
#include "zoom.h"
#include "autopilo.h"
#include "ui.h"
#define InSet(i) (i==context->colors[0])
static number_t minsize = 1000;
static number_t maxsize = 0;
static int autime = 0;
static int minlong = 0;
static int interlevel;
#define MINCOUNT 5
void clean_autopilot(void)
{
minsize = 1000;
maxsize = 0;
autime = 0;
minlong = 0;
}
void do_autopilot(zoom_context * context, int *x, int *y, int *controls, void (*changed) (void))
{
static int x1, y1, c1;
int i, j, i1, j1, c, max;
checkcontext(context);
assert(changed != NULL);
if (context->dirty)
clean_autopilot();
if (context->s.mc - context->s.nc < minsize) {
minsize = context->s.mc - context->s.nc;
minlong = 0;
}
if (context->s.mc - context->s.nc > maxsize) {
minsize = context->s.mc - context->s.nc;
maxsize = context->s.mc - context->s.nc;
minlong = 0;
}
j = 0;
for (i = 0; i < context->width - 1; i++) { /*detection of out of precisity... */
if (context->xpos[i] == context->xpos[i + 1])
j++;
}
if (autime <= 0) {
if (context->uncomplette && j > context->width / 2) {
*controls = 0;
return;
}
minlong++;
max = NGUESSES1;
ui_tbreak();
do {
max--;
c = 0;
x1 = rand() % (context->width - 2 * LOOKSIZE) + LOOKSIZE;
y1 = rand() % (context->height - 2 * LOOKSIZE) + LOOKSIZE;
autime = rand() % MAXTIME;
for (i = x1 - LOOKSIZE; i <= x1 + LOOKSIZE; i++)
for (j = y1 - LOOKSIZE; j <= y1 + LOOKSIZE; j++)
if (InSet(*(context->vbuff + i + j * context->scanline)))
c++;
} while ((c == 0 || c > LOOKSIZE * LOOKSIZE) && max > 0);
if (max > 0)
c1 = BUTTON1, interlevel = 1;
else {
max = NGUESSES2;
do {
max--;
c = 0;
x1 = rand() % (context->width - 2 * LOOKSIZE) + LOOKSIZE;
y1 = rand() % (context->height - 2 * LOOKSIZE) + LOOKSIZE;
autime = rand() % MAXTIME;
for (i = x1 - LOOKSIZE; i <= x1 + LOOKSIZE; i++)
for (j = y1 - LOOKSIZE; j < y1 + LOOKSIZE; j++)
for (i1 = x1 - LOOKSIZE; i1 < x1 + LOOKSIZE; i1++)
for (j1 = y1 - LOOKSIZE; j1 < y1 + LOOKSIZE; j1++)
if (i1 != i && j1 != j &&
(*(context->vbuff + i + j * context->scanline)) ==
(*(context->vbuff + i1 + j1 * context->scanline)))
c++;
} while ((c > LOOKSIZE * LOOKSIZE / 2) && max > 0);
if (max > 0)
c1 = BUTTON1, interlevel = 2;
else {
if (context->uncomplette) {
c1 = 0;
autime = 20;
}
else {
c1 = BUTTON3, autime >>= 1;
}
}
}
}
autime--; {
*x = x1;
*y = y1;
*controls = c1;
}
}
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