Method GetFormationRelative

engine/Poseidon/AI/AIUnit.cpp:1541–1590

// check size of formation

static float FormSize(AISubgroup* subgrp)
{
    return 0.0f;
}

Vector3 AIUnit::GetFormationRelative() const
{
    // most common case
    // no need to calculate formation size
    if (_formPos == AI::PosInFormation)
    {
        return _formationPos;
    }
    // relative to leader
    // consider formation position (advance etc...)
    Vector3 offset = VZero;
    // calculate formation size
    float sizeX = 0;
    float sizeZ = 0;
    AISubgroup* subgrp = GetSubgroup();
    for (int i = 0; i < subgrp->NUnits(); i++)
    {
        AIUnit* unit = subgrp->GetUnit(i);
        if (!unit)
        {
            continue;
        }
        EntityAI* veh = unit->GetVehicle();
        sizeX += veh->GetFormationX();
        sizeZ += veh->GetFormationZ();
    }
    if (subgrp->NUnits() < 8)
    {
        float nCoef = 8.0 / subgrp->NUnits();
        sizeX *= nCoef;
        sizeZ *= nCoef;
    }
    float coef = _formPosCoef;
    switch (_formPos)
    {
        case AI::PosAdvance:
            offset[2] += sizeZ * coef;
            break;
        case AI::PosStayBack:
            offset[2] -= sizeZ * coef;
            break;
        case AI::PosFlankLeft:
            offset[0] -= sizeX * coef;
            break;
        case AI::PosFlankRight:
            offset[0] += sizeX * coef;
            break;
    }