#include "block.h"


class WillardSequence :
            public Block
{
private:
    OutPort < bool > * out;
    Parameter < long > * NPar;
    long N;


public:
    WillardSequence(const Blockopt & blockopt): Block(blockopt)
    {}

    void makeParameters()
    {
        NPar = new Parameter < long > (this, "N", 7);
    }

    void makeIOPorts()
    {
        out = new OutPort < bool > (this, "out", NPar->value());
    }

    void initialize()
    {
        N=NPar->value();
        if ((3!=N)
                && (4!=N)
                && (5!=N)
                && (7!=N)
                && (11!=N)
                && (13!=N))
            simend("unknown code length");
    }

    void go()
    {
        switch(N)
        {
        case 3:
            out->write(true);
            out->write(true);
            out->write(false);
            break;
        case 4:
            out->write(true);
            out->write(true);
            out->write(false);
            out->write(false);
            break;
        case 5:
            out->write(true);
            out->write(true);
            out->write(false);
            out->write(true);
            out->write(false);
            break;
        case 7:
            out->write(true);
            out->write(true);
            out->write(true);
            out->write(false);
            out->write(true);
            out->write(false);
            out->write(false);
            break;
        case 11:
            out->write(true);
            out->write(true);
            out->write(true);
            out->write(false);
            out->write(true);
            out->write(true);
            out->write(false);
            out->write(true);
            out->write(false);
            out->write(false);
            out->write(false);
            break;
        case 13:
            out->write(true);
            out->write(true);
            out->write(true);
            out->write(true);
            out->write(true);
            out->write(false);
            out->write(false);
            out->write(true);
            out->write(false);
            out->write(true);
            out->write(false);
            out->write(false);
            out->write(false);
            break;
        }
    }
};


PUBLISH(WillardSequence);