diff options
| -rw-r--r-- | bin/brot.c | 30 |
1 files changed, 16 insertions, 14 deletions
diff --git a/bin/brot.c b/bin/brot.c index 3302ee9e..b12e4208 100644 --- a/bin/brot.c +++ b/bin/brot.c @@ -62,23 +62,25 @@ void draw(uint32_t *buf, size_t width, size_t height) { } } +static uint32_t depthDelta = 1; +static double translateDelta = 0.01; +static double rotateDelta = 0.01; +static double scaleFactor = 1.1; + bool input(char in) { const double PI = acos(-1.0); - double complex realTrans = 0.01 * scale * rotate; - double complex imagTrans = 0.01*I * scale * rotate; - double complex theta = cexp(0.01 * PI * I); switch (in) { case 'q': return false; - case '.': depth++; break; - case ',': if (depth) depth--; break; - case '+': scale *= 0.9; break; - case '-': scale *= 1.1; break; - case 'l': translate += realTrans; break; - case 'h': translate -= realTrans; break; - case 'j': translate += imagTrans; break; - case 'k': translate -= imagTrans; break; - case 'u': rotate *= theta; break; - case 'i': rotate /= theta; break; + case '.': depth += depthDelta; break; + case ',': if (depth > depthDelta) depth -= depthDelta; break; + case 'l': translate += translateDelta * scale * rotate; break; + case 'h': translate -= translateDelta * scale * rotate; break; + case 'j': translate += translateDelta * I * scale * rotate; break; + case 'k': translate -= translateDelta * I * scale * rotate; break; + case 'u': rotate *= cexp(rotateDelta * PI * I); break; + case 'i': rotate /= cexp(rotateDelta * PI * I); break; + case '+': scale /= scaleFactor; break; + case '-': scale *= scaleFactor; break; } return true; } @@ -87,7 +89,7 @@ const char *status(void) { static char buf[256]; snprintf( buf, sizeof(buf), - "%u %g+%gi %g+%gi %g", + "-d %u -t %g+%gi -r %g+%gi -z %g", depth, creal(translate), cimag(translate), creal(rotate), cimag(rotate), |