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lots of junk
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@mackstann
mackstann committed Dec 18, 2008
1 parent 4496698 commit ba04f1b
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Showing 2 changed files with 143 additions and 41 deletions.
2 changes: 1 addition & 1 deletion Makefile
View file
@@ -1,5 +1,5 @@
mona: Makefile mona.c
g++ -Wall -pedantic -O3 -mtune=prescott `pkg-config --libs --cflags cairo x11 cairo-xlib glib-2.0` mona.c -o mona
g++ -DDRAW -Wall -pedantic -O3 -mtune=prescott `pkg-config --libs --cflags cairo x11 cairo-xlib glib-2.0` mona.c -o mona
clean:
rm -f mona

182 changes: 142 additions & 40 deletions mona.c
View file
Expand Up @@ -4,6 +4,8 @@
// off with some old code and awkwardly retrofitted it into what it is. the
// result is a mix of c and c++, different syntax styles, etc. it's horrible.
// i was in a rush.
//
// written by nick welch <nick@incise.org>. author disclaims copyright.

#include <cstdio>
#include <cstdlib>
Expand All @@ -28,6 +30,14 @@ extern "C" {
#define WIDTH 200
#define HEIGHT 200

#ifndef NUM_POINTS
#define NUM_POINTS 5
#endif

#ifndef NUM_SHAPES
#define NUM_SHAPES 15
#endif

using namespace std;

typedef struct win {
Expand All @@ -54,9 +64,6 @@ struct CairoXDrawable {
Display * dpy;
};

#define NUM_POINTS 6
#define NUM_SHAPES 100

typedef struct {
int x, y;
} point_t;
Expand Down Expand Up @@ -96,7 +103,12 @@ void draw_dna(shape_t * dna, cairo_t * cr)
draw_shape(dna, cr, i);
}

#if 0
#define RANDINT(max) (int)((random() / (double)RAND_MAX) * (max))
#else
#define RANDINT(max) g_random_int_range(0, (max))
#endif

#define RANDDOUBLE(max) ((random() / (double)RAND_MAX) * max)

void init_dna(shape_t * dna)
Expand All @@ -108,51 +120,105 @@ void init_dna(shape_t * dna)
dna[i].points[j].x = RANDINT(WIDTH);
dna[i].points[j].y = RANDINT(HEIGHT);
}
//dna[i].r = g_random_double();
//dna[i].g = g_random_double();
//dna[i].b = g_random_double();
//dna[i].a = g_random_double();
dna[i].r = 0;
dna[i].g = 0;
dna[i].b = 0;
dna[i].a = 0;
dna[i].r = g_random_double();
dna[i].g = g_random_double();
dna[i].b = g_random_double();
dna[i].a = g_random_double();
//dna[i].r = 0.5;
//dna[i].g = 0.5;
//dna[i].b = 0.5;
//dna[i].a = 1;
}
}

void mutate(void)
int mutate(void)
{
mutated_shape = RANDINT(NUM_SHAPES);
double roulette = RANDDOUBLE(2);
double roulette = RANDDOUBLE(2.8);
double drastic = RANDDOUBLE(2);

// mutate color
if(roulette<1)
{
// red
if(roulette<0.25)
dna_test[mutated_shape].r = RANDDOUBLE(1);
// green
else if(roulette<0.5)
dna_test[mutated_shape].g = RANDDOUBLE(1);
// blue
if(dna_test[mutated_shape].a < 0.01 // completely transparent shapes are stupid
|| roulette<0.25)
{
if(drastic < 1)
{
dna_test[mutated_shape].a += RANDDOUBLE(0.1);
dna_test[mutated_shape].a = CLAMP(dna_test[mutated_shape].a, 0.0, 1.0);
}
else
dna_test[mutated_shape].a = RANDDOUBLE(1.0);
}
else if(roulette<0.50)
{
if(drastic < 1)
{
dna_test[mutated_shape].r += RANDDOUBLE(0.1);
dna_test[mutated_shape].r = CLAMP(dna_test[mutated_shape].r, 0.0, 1.0);
}
else
dna_test[mutated_shape].r = RANDDOUBLE(1.0);
}
else if(roulette<0.75)
dna_test[mutated_shape].b = RANDDOUBLE(1);
// alpha
else if(roulette<1.0)
dna_test[mutated_shape].a = RANDDOUBLE(1);
{
if(drastic < 1)
{
dna_test[mutated_shape].g += RANDDOUBLE(0.1);
dna_test[mutated_shape].g = CLAMP(dna_test[mutated_shape].g, 0.0, 1.0);
}
else
dna_test[mutated_shape].g = RANDDOUBLE(1.0);
}
else
{
if(drastic < 1)
{
dna_test[mutated_shape].b += RANDDOUBLE(0.1);
dna_test[mutated_shape].b = CLAMP(dna_test[mutated_shape].b, 0.0, 1.0);
}
else
dna_test[mutated_shape].b = RANDDOUBLE(1.0);
}
}

// mutate shape
else
else if(roulette < 2.0)
{
int point_i = RANDINT(NUM_POINTS);

// x-coordinate
if(roulette<1.5)
dna_test[mutated_shape].points[point_i].x = RANDINT(WIDTH);
// y-coordinate
{
if(drastic < 1)
{
dna_test[mutated_shape].points[point_i].x += (int)RANDDOUBLE(WIDTH/10.0);
dna_test[mutated_shape].points[point_i].x = CLAMP(dna_test[mutated_shape].points[point_i].x, 0, WIDTH-1);
}
else
dna_test[mutated_shape].points[point_i].x = RANDINT(WIDTH);
}
else
dna_test[mutated_shape].points[point_i].y = RANDINT(HEIGHT);
{
if(drastic < 1)
{
dna_test[mutated_shape].points[point_i].y += (int)RANDDOUBLE(HEIGHT/10.0);
dna_test[mutated_shape].points[point_i].y = CLAMP(dna_test[mutated_shape].points[point_i].y, 0, HEIGHT-1);
}
else
dna_test[mutated_shape].points[point_i].y = RANDINT(HEIGHT);
}
}

// mutate stacking
else
{
int destination = RANDINT(NUM_SHAPES);
shape_t s = dna_test[mutated_shape];
dna_test[mutated_shape] = dna_test[destination];
dna_test[destination] = s;
return destination;
}
return -1;

}

Expand All @@ -174,15 +240,17 @@ int difference(cairo_surface_t * test_surf, cairo_surface_t * goal_surf)
{
for(int x = 0; x < WIDTH; x++)
{
guchar test_a = test_data[y*WIDTH*4 + x*4 + 0];
guchar test_r = test_data[y*WIDTH*4 + x*4 + 1];
guchar test_g = test_data[y*WIDTH*4 + x*4 + 2];
guchar test_b = test_data[y*WIDTH*4 + x*4 + 3];
gint thispixel = y*WIDTH*4 + x*4;

guchar goal_a = goal_data[y*WIDTH*4 + x*4 + 0];
guchar goal_r = goal_data[y*WIDTH*4 + x*4 + 1];
guchar goal_g = goal_data[y*WIDTH*4 + x*4 + 2];
guchar goal_b = goal_data[y*WIDTH*4 + x*4 + 3];
guchar test_a = test_data[thispixel];
guchar test_r = test_data[thispixel + 1];
guchar test_g = test_data[thispixel + 2];
guchar test_b = test_data[thispixel + 3];

guchar goal_a = goal_data[thispixel];
guchar goal_r = goal_data[thispixel + 1];
guchar goal_g = goal_data[thispixel + 2];
guchar goal_b = goal_data[thispixel + 3];

if(MAX_FITNESS == -1)
my_max_fitness += goal_a + goal_r + goal_g + goal_b;
Expand Down Expand Up @@ -235,18 +303,25 @@ win_init(win_t *win, Display *dpy)

XSelectInput(win->dpy, win->win, ExposureMask);

#ifdef DRAW
XMapWindow(dpy, win->win);
#endif
}

static void
win_handle_events(win_t *win, CairoXDrawable * c)
{
GTimeVal start;
g_get_current_time(&start);

init_dna(dna_best);
memcpy((void *)dna_test, (const void *)dna_best, sizeof(shape_t) * NUM_SHAPES);

#ifdef DRAW
cairo_surface_t * xsurf = cairo_xlib_surface_create(
c->dpy, win->pixmap, DefaultVisual(win->dpy, DefaultScreen(win->dpy)), WIDTH, HEIGHT);
cairo_t * xcr = cairo_create(xsurf);
#endif

cairo_surface_t * test_surf = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, WIDTH, HEIGHT);
cairo_t * test_cr = cairo_create(test_surf);
Expand All @@ -260,7 +335,7 @@ win_handle_events(win_t *win, CairoXDrawable * c)
int teststep = 0;
int beststep = 0;
for(;;) {
mutate();
int other_mutated = mutate();
draw_dna(dna_test, test_cr);

int diff = difference(test_surf, goalsurf);
Expand All @@ -271,24 +346,50 @@ win_handle_events(win_t *win, CairoXDrawable * c)
beststep++;
// test is good, copy to best
dna_best[mutated_shape] = dna_test[mutated_shape];
if(other_mutated >= 0)
dna_best[other_mutated] = dna_test[other_mutated];
#ifdef DRAW
copy_surf_to(test_surf, xcr); // also copy to display
XCopyArea(win->dpy, win->pixmap, win->win, win->gc,
0, 0,
WIDTH, HEIGHT,
0, 0);
#endif
lowestdiff = diff;
}
else
{
// test sucks, copy best back over test
dna_test[mutated_shape] = dna_best[mutated_shape];
if(other_mutated >= 0)
dna_test[other_mutated] = dna_best[other_mutated];
}

teststep++;

#if 0
if(teststep % 100 == 0)
printf("Step = %d/%d\nFitness = %0.6f%%\n",
beststep, teststep, (MAX_FITNESS-lowestdiff) / (float)MAX_FITNESS);
#endif

GTimeVal t;
g_get_current_time(&t);

#ifdef QUITFAST
if(t.tv_sec - start.tv_sec > 30)
#else
if(teststep % 100 == 0)
#endif
{
printf("%0.6f\n", ((MAX_FITNESS-lowestdiff) / (float)MAX_FITNESS)*100);
#ifdef QUITFAST
return;
#endif
}

if(XPending(win->dpy))
#ifdef DRAW
if(teststep % 100 == 0 && XPending(win->dpy))
{
XEvent xev;
XNextEvent(win->dpy, &xev);
Expand All @@ -300,6 +401,7 @@ win_handle_events(win_t *win, CairoXDrawable * c)
xev.xexpose.x, xev.xexpose.y);
}
}
#endif
}
}

Expand Down

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