File content as of revision 24:52319c0a14b8:

#include "light_show.h"

void Light_show::drive ()
{
//        printf("Updating RGB values...\r\n");
    for (i=0; i<3; i++) {
        if (!(rgb & (0x1 << i) )) {
            if ( in > WAIT[i]) {
//                    printf("%d, %d, result: %d\r\n", rgb, (0x1 << i), (!(rgb & (0x1 << i)) ) );
                rgb_c[i] = -cos((in - WAIT[i])*SCALE[i]) + 1;
            } else {
                rgb_c[i] = 0.0;
            }
        } else
            rgb_c[i] = 0.0;
        pc->printf("%f\t",rgb_c[i]);
    }
    pc->printf("\n\r");
//        exit(0);
}

void Light_show::randomize_params()
{
    float rand_seed = t.read();
    pc->printf("%f\n\r", rand_seed);
    int rand_int = t.read() * 7919;

    time_t seconds = time(NULL);
    pc->printf("Time as seconds since January 1, 1970 = %d\n\r", seconds);

    srand(rand_int);
    pc->printf("A random %d\r\n", rand() );

    // generate random values in 0.0 - 1.0
    uint8_t blah;
    for (int j = 0; j < 3; j++) {
        srand(rand_int+j);
        blah = rand();
        SCALE[j] = (float) blah;
        SCALE[j] /= (float) 0xff;
        SCALE[j] = SCALE[j]*HPI + 1;
        pc->printf("scale %d, %f\n\r", i, SCALE[i]);
        srand(blah+j % 17 + 7);
        blah = rand();
        WAIT[j] = (float) blah;
        WAIT[j] /= (float) 0xff;
        WAIT[j] *= HPI;
        pc->printf("wait %d, %f\n\r", i, WAIT[i]);
    }
    rgb = 0x0;
    printf("Params Initialized\r\n");
}