CombatZone.cpp

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/*  Project Starshatter 4.5
        Destroyer Studios LLC
        Copyright © 1997-2004. All Rights Reserved.

        SUBSYSTEM:    Stars.exe
        FILE:         CombatZone.cpp
        AUTHOR:       John DiCamillo


        OVERVIEW
        ========
        CombatZone is used by the dynamic campaign strategy
        and logistics algorithms to assign forces to locations
        within the campaign.  A CombatZone is a collection of
        closely related sectors, and the assets contained
        within them.
*/

#include "MemDebug.h"
#include "CombatZone.h"
#include "CombatGroup.h"
#include "CombatUnit.h"
#include "Campaign.h"
#include "ShipDesign.h"
#include "Ship.h"

#include "Game.h"
#include "DataLoader.h"
#include "ParseUtil.h"

// +----------------------------------------------------------------------+

CombatZone::CombatZone()
{
}

CombatZone::~CombatZone()
{
        regions.destroy();
        forces.destroy();
}

// +--------------------------------------------------------------------+

void
CombatZone::Clear()
{
        forces.destroy();
}

// +--------------------------------------------------------------------+

void
CombatZone::AddGroup(CombatGroup* group)
{
        if (group) {
                int iff = group->GetIFF();
                ZoneForce* f = FindForce(iff);
                f->AddGroup(group);
                group->SetCurrentZone(this);
        }
}

void
CombatZone::RemoveGroup(CombatGroup* group)
{
        if (group) {
                int iff = group->GetIFF();
                ZoneForce* f = FindForce(iff);
                f->RemoveGroup(group);
                group->SetCurrentZone(0);
        }
}

bool
CombatZone::HasGroup(CombatGroup* group)
{
        if (group) {
                int iff = group->GetIFF();
                ZoneForce* f = FindForce(iff);
                return f->HasGroup(group);
        }

        return false;
}

// +--------------------------------------------------------------------+

void
CombatZone::AddRegion(const char* rgn)
{
        if (rgn && *rgn) {
                regions.append(new (__FILE__,__LINE__) Text(rgn));

                if (name.length() < 1)
                name = rgn;
        }
}

// +--------------------------------------------------------------------+

bool
CombatZone::HasRegion(const char* rgn)
{
        if (rgn && *rgn && regions.size()) {
                Text test(rgn);
                return regions.contains(&test);
        }

        return false;
}

// +--------------------------------------------------------------------+

ZoneForce*
CombatZone::FindForce(int iff)
{
        ListIter<ZoneForce> f = forces;
        while (++f) {
                if (f->GetIFF() == iff)
                return f.value();
        }

        return MakeForce(iff);
}

// +--------------------------------------------------------------------+

ZoneForce*
CombatZone::MakeForce(int iff)
{
        ZoneForce* f = new(__FILE__,__LINE__) ZoneForce(iff);
        forces.append(f);
        return f;
}

// +--------------------------------------------------------------------+

static List<CombatZone> zonelist;

List<CombatZone>&
CombatZone::Load(const char* filename)
{
        zonelist.clear();

        DataLoader* loader   = DataLoader::GetLoader();
        BYTE*       block    = 0;

        loader->LoadBuffer(filename, block, true);
        Parser parser(new(__FILE__,__LINE__) BlockReader((const char*) block));

        Term*  term = parser.ParseTerm();

        if (!term) {
                return zonelist;
        }
        else {
                TermText* file_type = term->isText();
                if (!file_type || file_type->value() != "ZONES") {
                        return zonelist;
                }
        }

        do {
                delete term; term = 0;
                term = parser.ParseTerm();
                
                if (term) {
                        TermDef* def = term->isDef();
                        if (def) {
                                if (def->name()->value() == "zone") {
                                        if (!def->term() || !def->term()->isStruct()) {
                                                ::Print("WARNING: zone struct missing in '%s%s'\n", loader->GetDataPath(), filename);
                                        }
                                        else {
                                                TermStruct* val = def->term()->isStruct();

                                                CombatZone* zone = new(__FILE__,__LINE__) CombatZone();
                                                char        rgn[64];
                                                ZeroMemory(rgn,  sizeof(rgn));

                                                for (int i = 0; i < val->elements()->size(); i++) {
                                                        TermDef* pdef = val->elements()->at(i)->isDef();
                                                        if (pdef) {
                                                                if (pdef->name()->value() == "region") {
                                                                        GetDefText(rgn, pdef, filename);
                                                                        zone->AddRegion(rgn);
                                                                }
                                                                else if (pdef->name()->value() == "system") {
                                                                        GetDefText(rgn, pdef, filename);
                                                                        zone->system = rgn;
                                                                }
                                                        }
                                                }

                                                zonelist.append(zone);
                                        }
                                }
                        }
                }
        }
        while (term);

        loader->ReleaseBuffer(block);

        return zonelist;
}

// +--------------------------------------------------------------------+

ZoneForce::ZoneForce(int i)
{
        iff = i;

        for (int n = 0; n < 8; n++)
        need[n] = 0;
}

void
ZoneForce::AddGroup(CombatGroup* group)
{
        if (group)
        groups.append(group);
}

void
ZoneForce::RemoveGroup(CombatGroup* group)
{
        if (group)
        groups.remove(group);
}

bool
ZoneForce::HasGroup(CombatGroup* group)
{
        if (group)
        return groups.contains(group);

        return false;
}

int
ZoneForce::GetNeed(int group_type) const
{
        switch (group_type) {
        case CombatGroup::CARRIER_GROUP:       return need[0];
        case CombatGroup::BATTLE_GROUP:        return need[1];
        case CombatGroup::DESTROYER_SQUADRON:  return need[2];
        case CombatGroup::ATTACK_SQUADRON:     return need[3];
        case CombatGroup::FIGHTER_SQUADRON:    return need[4];
        case CombatGroup::INTERCEPT_SQUADRON:  return need[5];
        }

        return 0;
}

void
ZoneForce::SetNeed(int group_type, int needed)
{
        switch (group_type) {
        case CombatGroup::CARRIER_GROUP:       need[0] = needed; break;
        case CombatGroup::BATTLE_GROUP:        need[1] = needed; break;
        case CombatGroup::DESTROYER_SQUADRON:  need[2] = needed; break;
        case CombatGroup::ATTACK_SQUADRON:     need[3] = needed; break;
        case CombatGroup::FIGHTER_SQUADRON:    need[4] = needed; break;
        case CombatGroup::INTERCEPT_SQUADRON:  need[5] = needed; break;
        }
}

void
ZoneForce::AddNeed(int group_type, int needed)
{
        switch (group_type) {
        case CombatGroup::CARRIER_GROUP:       need[0] += needed; break;
        case CombatGroup::BATTLE_GROUP:        need[1] += needed; break;
        case CombatGroup::DESTROYER_SQUADRON:  need[2] += needed; break;
        case CombatGroup::ATTACK_SQUADRON:     need[3] += needed; break;
        case CombatGroup::FIGHTER_SQUADRON:    need[4] += needed; break;
        case CombatGroup::INTERCEPT_SQUADRON:  need[5] += needed; break;
        }
}