-
Notifications
You must be signed in to change notification settings - Fork 0
/
barnsleyFern_v1_0_0.h
42 lines (36 loc) · 1.03 KB
/
barnsleyFern_v1_0_0.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
#ifndef BARNSLEYFERN_H
#define BARNSLEYFERN_H 0x010000
#include <stdlib.h>
#define _BMP_TRANSFORM
#include "bmpEncoder.h"
#if _BMPENCODER_H < 0x010202
#error bmpEncoder.h lower than v1.2.2
#endif
#ifdef __cplusplus
extern "C" {
#endif
int barnsleyFern(const char *filename, _ulong width, _ulong height, TRANSFORMATION transX, TRANSFORMATION transY, _ulong count, double affine[][6], _ulong repeat, _ulong bgcolor, _ulong fgcolor) {
BITMAP *bitmap=BitmapInit(filename, 0, width, height, bgcolor);
_ulong random;
double x = 0, y = 0, x_, y_;
_ulong i, j;
while(repeat--) {
random = rand() % count;
x_ = x * affine[random][0] + y * affine[random][1] + affine[random][2];
y_ = x * affine[random][3] + y * affine[random][4] + affine[random][5];
x = x_;
y = y_;
i = Transform(transX, x);
j = Transform(transY, y);
printf("%lu %lu\n", i, j);
if(i < width && j < height) {
BitmapSetAt(bitmap, i, j, fgcolor);
}
}
BitmapClose(bitmap);
return 0;
}
#ifdef __cplusplus
}
#endif
#endif