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// Evol functions.
// Authors:
//    Jesusalva
//    Reid
// Description:
//    Util functions


// season_direction({day, month})
//    returns the direction that represents our current season (approximation)
//      DOWN:      Winter, 21/12
//      DOWNLEFT:  Spring, 20/03
//      LEFT:      Summer, 21/06
//      UPLEFT:    Autumn, 22/09

function	script	season_direction	{
    .@current_month = getarg(0, gettime(GETTIME_MONTH));

    if (.@current_month % 3 == 0)
    {
        .@current_day = getarg(1, gettime(GETTIME_DAYOFMONTH));

        switch (.@current_month)
        {
            case MARCH:     .@season_day = 20; break;
            case JUNE:      .@season_day = 21; break;
            case SEPTEMBER: .@season_day = 22; break;
            case DECEMBER:  .@season_day = 21; break;
            default: break;
        }

        .@is_after_season_day = .@current_day >= .@season_day ? 0 : -1;
    }

    return (.@current_month / 3 + .@is_after_season_day) % 4;
}

// This is part of Jesusalva script toolkit to make his life easier when writing
// quests. Many of these are actually redudant functions.

// Four different flavours of setq() to quickly preserve old values
function	script	setq1	{
    //   Quest,     val1     , val2            , val3            , time
    setq getarg(0), getarg(1), getq2(getarg(0)), getq3(getarg(0)), getqtime(getarg(0));
    return;
}

function	script	setq2	{
    //   Quest,     val1           , val2     , val3            , time
    setq getarg(0), getq(getarg(0)), getarg(1), getq3(getarg(0)), getqtime(getarg(0));
    return;
}

function	script	setq3	{
    //   Quest,     val1           , val2            , val3     , time
    setq getarg(0), getq(getarg(0)), getq2(getarg(0)), getarg(1), getqtime(getarg(0));
    return;
}

function	script	setqtime	{
    //   Quest,     val1           , val2            , val3     , time
    setq getarg(0), getq(getarg(0)), getq2(getarg(0)), getq3(getarg(0)), getarg(1);
    return;
}

// Function to quickly disregard part of getmapxy().
// If you use this function too much, you'll lose efficiency, and it'll be better
// to use getmapxy() normally to save to temporary variables.
// Can take one optional argument (unittype argument).
function	script	getmap	{
    if (getmapxy(.@mapName$, .@xpos, .@ypos, getarg(0,0)) != 0)
        return false;
    return .@mapName$;
}