Some example missions loading script

// Example script
#include <a_samp>
#include <list>

MEM::struct ObjectStruct
{
    ObjectStruct_Model,
    Float:ObjectStruct_Pos[3],
    Float:ObjectStruct_Rot[3],
    Float:ObjectStruct_SD // Stream distance
}

MEM::struct VehicleStruct
{
    VehicleStruct_Model,
    Float:VehicleStruct_Pos[3],
    Float:VehicleStruct_Rot,
    VehicleStruct_Color[2]
}

MEM::struct MissionStruct // Just an example
{
    MissionStruct_Name[32],
    MissionStruct_Owner[MAX_PLAYER_NAME],
    MissionStruct_Objective,
    List:MissionStruct_Objects_List[LIST_E_base],
    List:MissionStruct_Vehicles_List[LIST_E_base]
    // ...
}

new LIST::init<MissionsSequence>, MissionIt:current_mission, MissionHandle[MissionStruct];

public OnGameModeInit() // Example callback
{
    new my_mission[MissionStruct];

    // Mission 1
    format(my_mission[MissionStruct_Name], 32, "Example Name");
    format(my_mission[MissionStruct_Owner], MAX_PLAYER_NAME, "Example Nick");
    my_mission[MissionStruct_Objective] = 1;

    // Zero intialize objects list header
    my_mission[MissionStruct_Objects_List][LIST_base_begin] = 0;
    my_mission[MissionStruct_Objects_List][LIST_base_end] = 0;

    // Zero intialize vehicles list header
    my_mission[MissionStruct_Vehicles_List][LIST_base_begin] = 0;
    my_mission[MissionStruct_Vehicles_List][LIST_base_end] = 0;

    // Let us add for example 5 example object data
    LIST::push_back_arr(my_mission[MissionStruct_Objects_List], {985 /* Model */, 0.0 /* X */, 0.0 /* Y */, 0.0 /* Z */, 0.0 /* Rotation X */, 0.0 /* Rotation Y */, 0.0 /* Rotation Z */, 200.0 /* Stream distance */}, ObjectStruct);
    LIST::push_back_arr(my_mission[MissionStruct_Objects_List], {985, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 200.0}, ObjectStruct);
    LIST::push_back_arr(my_mission[MissionStruct_Objects_List], {985, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 200.0}, ObjectStruct);
    LIST::push_back_arr(my_mission[MissionStruct_Objects_List], {985, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 200.0}, ObjectStruct);
    LIST::push_back_arr(my_mission[MissionStruct_Objects_List], {985, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 200.0}, ObjectStruct);

    // Now let's add 5 vehicle data
    LIST::push_back_arr(my_mission[MissionStruct_Vehicles_List], {400 /* Model */, 0.0 /* X */, 0.0 /* Y */, 0.0 /* Z */, 0.0 /* Rotation Z */, 0 /* Color 1 */, 0 /* Color 2 */}, VehicleStruct);
    LIST::push_back_arr(my_mission[MissionStruct_Vehicles_List], {400, 0.0, 0.0, 0.0, 0.0, 0, 0}, VehicleStruct);
    LIST::push_back_arr(my_mission[MissionStruct_Vehicles_List], {400, 0.0, 0.0, 0.0, 0.0, 0, 0}, VehicleStruct);
    LIST::push_back_arr(my_mission[MissionStruct_Vehicles_List], {400, 0.0, 0.0, 0.0, 0.0, 0, 0}, VehicleStruct);
    LIST::push_back_arr(my_mission[MissionStruct_Vehicles_List], {400, 0.0, 0.0, 0.0, 0.0, 0, 0}, VehicleStruct);

    // ...

    // Those {} can be modfied into array variables, to handle it as a buffer, which can store data from databases or files.

    // Adds the mission into the missions list
    LIST::push_back_arr(MissionsSequence, my_mission, MissionStruct);

    // One more example mission :D
    format(my_mission[MissionStruct_Name], 32, "Leet");
    format(my_mission[MissionStruct_Owner], MAX_PLAYER_NAME, "BigETI");
    my_mission[MissionStruct_Objective] = 1337;

    // It is important to re-initialize the lists in this case, since we don't want to modify the older ones

    // Zero intialize objects list header
    my_mission[MissionStruct_Objects_List][LIST_base_begin] = 0;
    my_mission[MissionStruct_Objects_List][LIST_base_end] = 0;

    // Zero intialize vehicles list header
    my_mission[MissionStruct_Vehicles_List][LIST_base_begin] = 0;
    my_mission[MissionStruct_Vehicles_List][LIST_base_end] = 0;

    // Let us add for example 5 example object data
    LIST::push_back_arr(my_mission[MissionStruct_Objects_List], {985 /* Model */, 0.0 /* X */, 0.0 /* Y */, 0.0 /* Z */, 0.0 /* Rotation X */, 0.0 /* Rotation Y */, 0.0 /* Rotation Z */, 200.0 /* Stream distance */});
    LIST::push_back_arr(my_mission[MissionStruct_Objects_List], {985, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 200.0});
    LIST::push_back_arr(my_mission[MissionStruct_Objects_List], {985, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 200.0});
    LIST::push_back_arr(my_mission[MissionStruct_Objects_List], {985, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 200.0});
    LIST::push_back_arr(my_mission[MissionStruct_Objects_List], {985, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 200.0});

    // Now let's add 5 vehicle data
    LIST::push_back_arr(my_mission[MissionStruct_Vehicles_List], {400 /* Model */, 0.0 /* X */, 0.0 /* Y */, 0.0 /* Z */, 0.0 /* Rotation Z */, 0 /* Color 1 */, 0 /* Color 2 */});
    LIST::push_back_arr(my_mission[MissionStruct_Vehicles_List], {400, 0.0, 0.0, 0.0, 0.0, 0, 0});
    LIST::push_back_arr(my_mission[MissionStruct_Vehicles_List], {400, 0.0, 0.0, 0.0, 0.0, 0, 0});
    LIST::push_back_arr(my_mission[MissionStruct_Vehicles_List], {400, 0.0, 0.0, 0.0, 0.0, 0, 0});
    LIST::push_back_arr(my_mission[MissionStruct_Vehicles_List], {400, 0.0, 0.0, 0.0, 0.0, 0, 0});

    // ...

    // Adds the second mission into the missions list
    LIST::push_back_arr(MissionsSequence, my_mission, MissionStruct);

    // Start it
    current_mission = FirstMission();
}

// Starts the first mission
stock MissionIt:FirstMission()
{
    new MissionIt:first_mission = ListIt:LIST::begin(MissionsSequence);
    ForceMission(first_mission);
    return MissionIt:first_mission;
}

// Starts the next mission
stock MissionIt:NextMission(MissionIt:current_mission)
{
    if(current_mission == LIST::end(MissionsSequence)) return ForceMission(MissionIt:LIST::begin(MissionsSequence));
    return ForceMission(MissionIt:LIST_IT_next(current_mission));
}

// Forces to load a mission
stock MissionIt:ForceMission(MissionIt:mission)
{
    new Pointer:mission_ptr = LIST_IT::data_ptr(MissionsSequence); // Get the pointer of the beginning data inside the node
    MEM::get_arr(mission_ptr, 0, MissionHandle, MissionStruct); // Loads the whole mission into the handle

    // Remove all objects here!

    // Remove all vehicles here!

    new Pointer:some_data_ptr;
    LIST::foreach<objects_it>(MissionHandle[MissionStruct_Objects_List])
    {
        some_data_ptr = LIST_IT::data_ptr(objects_it); // Gets the pointer of the beginning data inside the node
        CreateObject(MEM_EX::get_val(some_data_ptr->ObjectStruct_Model),
            MEM_EX::get_val(some_data_ptr->ObjectStruct_Pos[0]),
            MEM_EX::get_val(some_data_ptr->ObjectStruct_Pos[1]),
            MEM_EX::get_val(some_data_ptr->ObjectStruct_Pos[2]),
            Float:MEM_EX::get_val(some_data_ptr->ObjectStruct_Rot[0]),
            Float:MEM_EX::get_val(some_data_ptr->ObjectStruct_Rot[1]),
            Float:MEM_EX::get_val(some_data_ptr->ObjectStruct_Rot[2]),
            Float:MEM_EX::get_val(some_data_ptr->ObjectStruct_SD));
    }
    LIST::foreach<vehicle_it>(MissionHandle[MissionStruct_Vehicles_List])
    {
        some_data_ptr = LIST_IT::data_ptr(vehicle_it); // Gets the pointer of the beginning data inside the node
        CreateVehicle(MEM_EX::get_val(some_data_ptr->VehicleStruct_Model),
            MEM_EX::get_val(some_data_ptr->VehicleStruct_Pos[0]),
            MEM_EX::get_val(some_data_ptr->VehicleStruct_Pos[1]),
            MEM_EX::get_val(some_data_ptr->VehicleStruct_Pos[2]),
            Float:MEM_EX::get_val(some_data_ptr->VehicleStruct_Rot),
            Float:MEM_EX::get_val(some_data_ptr->VehicleStruct_Color[0]),
            Float:MEM_EX::get_val(some_data_ptr->VehicleStruct_Color[1]), 0);
    }
    return mission;
}