Problem

    //ox, oy, oz is position to start drawing
    //or[3] is first object rotation faced to shoot pos
    new Float:Dist = VectorSize(X, Y, Z);
    //first
        id = CreateObject(19082, ox, oy, oz, 0.0, 0.0, 0.0);
    SetObjectFaceCoords3D(id, fX, fY, fZ);
    GetObjectRot(id, or[0], or[1], or[2]);
    //calc Z
        new Float:alfa = or[1]-180;
    new Float:cz = floatsin(alfa, degrees) * floatsin(90-(alfa/2), degrees) * 20.02; //19082 X offset = 10.01

        for(new i=0;i<ldst-2;i++) //ldst - distance from start to shoot pos
    {
        ox-=floatcos(or[2], degrees)*20.02;
            oy-=floatsin(or[2], degrees)*20.02;
        oz+=cz;
        id = CreateObject(19082, ox, oy, oz, 0.0, 0.0, 0.0);
        SetObjectRot(id, or[0], or[1], or[2]);

        }
        printf("Angle: %.1f, Heigh: %.2f", alfa, cz);