Sinusoidal KFM

goto(){
    // Start position
    SPOS = llGetPos();

    // End position at llGetOwner position
    vector to = prPos(llGetOwner());

    // Meters above start position to go
    float above = 3;

    // Total time of animations
    float total_time = 3;

    // Nr of keyframes
    integer steps = 10;

    // Where to go in local coordinates
    vector travel = to-SPOS;


    integer i; list out = [];

    // Previous frame position
    vector pre = SPOS;
    for(i=1; i<=steps; i++){

        // Where to go in a straight line
        vector v = travel*((float)i/steps);

        // Additinal Z to make it curve there
        float z = llSin(PI*(float)i/steps)*above;

        // Global position to go to this frame
        vector p = (SPOS+v+<0,0,z>);

        // add
        out+= [p-pre, total_time/steps];

        // Save previous frame position
        pre = p;

    }

    // Begin
    llSetKeyframedMotion(out, [KFM_DATA, KFM_TRANSLATION]);

}