#include #include typedef struct { char *data; int width, height; int padding; } Pattern; char at(Pattern, int x, int y); void set(Pattern, int x, int y, char); void showPattern(Pattern, int w, int h); Pattern mixPatterns(Pattern, Pattern); int nok(int, int); int main() { /* pattern maker v0.1 */ Pattern p1 = { "+-+|*|+-+", 3, 3, 2 }; showPattern(p1, 36, 18); printf("\n"); Pattern p2 = { "\\ \\", 2, 2, 0 }; showPattern(p2, 36, 18); printf("\n"); Pattern p3 = mixPatterns(p2, p1); showPattern(p3, 36, 18); printf("\np1{%dB} + p2{%dB} = p3{%dB}", p1.width*p1.height, p2.width*p2.height, p3.width*p3.height); return 0; } char at(Pattern p, int x, int y) { return p.data[y*p.width+x]; } void set(Pattern p, int x, int y, char c) { p.data[y*p.width+x] = c; } void showPattern(Pattern p, int w, int h) { for(int y = 0; y < h; y++) { for(int x = 0; x < w; x++) { int px = x % (p.width + p.padding); int py = y % (p.height + p.padding); if(px < p.width && py < p.height) printf("%c", at(p, px, py)); else printf(" "); } printf("\n"); } } Pattern mixPatterns(Pattern a, Pattern b) { Pattern res; res.width = nok(a.width+a.padding, b.width+b.padding); res.height = nok(a.height+a.padding, b.height+b.padding); res.data = (char*) malloc(res.width*res.height); res.padding = 0; for(int y = 0; y < res.height; y++) for(int x = 0; x < res.width; x++) { int bx = x % (b.width + b.padding); int by = y % (b.height + b.padding); if(bx < b.width && by < b.height) set(res, x, y, at(b, bx, by)); else { int ax = x % (a.width + a.padding); int ay = y % (a.height + a.padding); if(ax < a.width && ay < a.height) set(res, x, y, at(a, ax, ay)); else set(res, x, y, ' '); } } return res; } int nok(int a, int b) { int nod = a < b ? a : b; while(!(a % nod + b % nod == 0)) nod--; return a*b/nod; }

Pattern maker v0.1