cp_popup.cpp

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/*
Copyright (C) 2002-2020 UFO: Alien Invasion.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#include "../../cl_shared.h"
#include "cp_campaign.h"
#include "cp_mapfightequip.h"
#include "cp_geoscape.h"
#include "cp_popup.h"
#include "cp_missions.h"
#include "cp_time.h"
#include "cp_aircraft_callbacks.h"
#include "../../ui/ui_dataids.h"

/* popup_intercept display list of aircraft availables to move to a mission or a UFO */

#define POPUP_INTERCEPT_MAX_AIRCRAFT 64

typedef struct popup_intercept_s {
    int numAircraft;    
    aircraft_t* aircraft[POPUP_INTERCEPT_MAX_AIRCRAFT]; 
    mission_t* mission; 
    aircraft_t* ufo;        
} popup_intercept_t;

static popup_intercept_t popupIntercept;    
static int popupNum;                            
static linkedList_t* popupListData = nullptr;       
static uiNode_t* popupListNode = nullptr;       
static int INVALID_BASE = -1;

/*========================================
POPUP_HOMEBASE
========================================*/

bool CL_DisplayHomebasePopup (aircraft_t* aircraft, bool alwaysDisplay)
{
    int homebase;
    int numAvailableBases = 0;
    linkedList_t* popupListText = nullptr;
    base_t* base;

    assert(aircraft);

    cgi->LIST_Delete(&popupListData);

    popupNum = 0;
    homebase = -1;

    base = nullptr;
    while ((base = B_GetNext(base)) != nullptr) {
        char text[MAX_VAR];
        char const* msg;

        if (base == aircraft->homebase) {
            msg = _("current homebase of aircraft");
            LIST_Add(&popupListData, INVALID_BASE);
            homebase = popupNum;
        } else {
            msg = AIR_CheckMoveIntoNewHomebase(aircraft, base);
            if (!msg) {
                msg = _("base can hold aircraft");
                LIST_Add(&popupListData, base->idx);
                numAvailableBases++;
            } else {
                LIST_Add(&popupListData, INVALID_BASE);
            }
        }

        Com_sprintf(text, sizeof(text), "%s\t%s", base->name, msg);
        cgi->LIST_AddString(&popupListText, text);
        popupNum++;
    }

    if (alwaysDisplay || numAvailableBases > 0) {
        CP_GameTimeStop();
        popupListNode = cgi->UI_PopupList(_("Change homebase of aircraft"), _("Base\tStatus"), popupListText, "change_homebase <lineselected>;");
        VectorSet(popupListNode->selectedColor, 0.0, 0.78, 0.0);    
        popupListNode->selectedColor[3] = 1.0;
        cgi->UI_TextNodeSelectLine(popupListNode, homebase);
        GEO_SelectAircraft(aircraft);
        return true;
    }

    return false;
}

static void CL_PopupChangeHomebase_f (void)
{
    aircraft_t* aircraft = GEO_GetSelectedAircraft();

    /* If popup is opened, that means an aircraft is selected */
    if (!aircraft) {
        cgi->Com_Printf("CL_PopupChangeHomebase_f: An aircraft must be selected\n");
        return;
    }

    if (cgi->Cmd_Argc() < 2) {
        cgi->Com_Printf("Usage: %s <popupIndex>\tpopupIndex=num in base list\n", cgi->Cmd_Argv(0));
        return;
    }

    /* read and range check */
    int selectedPopupIndex = atoi(cgi->Cmd_Argv(1));
    cgi->Com_DPrintf(DEBUG_CLIENT, "CL_PopupHomebaseClick_f (popupNum %i, selectedPopupIndex %i)\n", popupNum, selectedPopupIndex);
    if (selectedPopupIndex < 0 || selectedPopupIndex >= popupNum)
        return;

    /* Convert list index to base idx */
    linkedList_t* data = popupListData; 
    int baseIdx = INVALID_BASE;
    for (int i = 0; data; data = data->next, i++) {
        if (i == selectedPopupIndex) {
            baseIdx = *(int*)data->data;
            break;
        }
    }

    base_t* base = B_GetFoundedBaseByIDX(baseIdx);
    if (base == nullptr)
        return;

    if (!AIR_CheckMoveIntoNewHomebase(aircraft, base))
        AIR_MoveAircraftIntoNewHomebase(aircraft, base);

    cgi->UI_PopWindow(false);
    CL_DisplayHomebasePopup(aircraft, true);
}

/*========================================
POPUP_INTERCEPT
========================================*/

static int AIR_SortByDistance (linkedList_t* aircraftEntry1, linkedList_t* aircraftEntry2, const void* userData)
{
    const vec_t* pos = (const vec_t*)userData;
    const aircraft_t* aircraft1 = (const aircraft_t*)aircraftEntry1->data;
    const aircraft_t* aircraft2 = (const aircraft_t*)aircraftEntry2->data;

    return GetDistanceOnGlobe(aircraft1->pos, pos) - GetDistanceOnGlobe(aircraft2->pos, pos);
}

#define AIR_ForeachSorted(var, sorter, userdata, sortedlist) LIST_ForeachSorted(ccs.aircraft, aircraft_t, var, sorter, userdata, sortedlist)

void CL_DisplayPopupInterceptMission (mission_t* mission)
{
    linkedList_t* aircraftList = nullptr;
    linkedList_t* aircraftListSorted;

    if (!mission)
        return;

    popupIntercept.mission = mission;
    popupIntercept.ufo = nullptr;

    /* Create the list of aircraft, and write the text to display in popup */
    popupIntercept.numAircraft = 0;

    AIR_ForeachSorted(aircraft, AIR_SortByDistance, mission->pos, aircraftListSorted) {
        const int teamSize = AIR_GetTeamSize(aircraft);

        if (aircraft->status == AIR_CRASHED)
            continue;
        /* if aircraft is empty we can't send it on a ground mission */
        if (teamSize > 0 && AIR_CanIntercept(aircraft)) {
            char aircraftListText[256] = "";
            const float distance = GetDistanceOnGlobe(aircraft->pos, mission->pos);
            const char* statusName = AIR_AircraftStatusToName(aircraft);
            const char* time = CP_SecondConvert((float)SECONDS_PER_HOUR * distance / aircraft->stats[AIR_STATS_SPEED]);
            Com_sprintf(aircraftListText, sizeof(aircraftListText), _("%s (%i/%i)\t%s\t%s\t%s"), aircraft->name,
                    teamSize, aircraft->maxTeamSize, statusName, aircraft->homebase->name, time);
            cgi->LIST_AddString(&aircraftList, aircraftListText);
            popupIntercept.aircraft[popupIntercept.numAircraft] = aircraft;
            popupIntercept.numAircraft++;
            if (popupIntercept.numAircraft >= POPUP_INTERCEPT_MAX_AIRCRAFT)
                break;
        }
    }
    cgi->LIST_Delete(&aircraftListSorted);

    if (popupIntercept.numAircraft)
        cgi->UI_RegisterLinkedListText(TEXT_AIRCRAFT_LIST, aircraftList);
    else
        cgi->UI_RegisterText(TEXT_AIRCRAFT_LIST, _("No craft available, no pilot assigned, or no tactical teams assigned to available craft."));

    /* Stop time */
    CP_GameTimeStop();

    /* Display the popup */
    cgi->UI_PushWindow("popup_mission");
}


void CL_DisplayPopupInterceptUFO (aircraft_t* ufo)
{
    linkedList_t* aircraftList = nullptr;
    linkedList_t* aircraftListSorted;
    linkedList_t* baseList = nullptr;
    base_t* base;

    if (!ufo)
        return;

    popupIntercept.mission = nullptr;
    popupIntercept.ufo = ufo;

    /* Create the list of aircraft, and write the text to display in popup */
    popupIntercept.numAircraft = 0;

    AIR_ForeachSorted(aircraft, AIR_SortByDistance, ufo->pos, aircraftListSorted) {
        if (AIR_CanIntercept(aircraft)) {
            char aircraftListText[256] = "";
            /* don't show aircraft with no weapons or no ammo, or crafts that
             * can't even reach the target */
            const char* enoughFuelMarker = "^B";

            /* Does the aircraft has weapons and ammo ? */
            if (AIRFIGHT_ChooseWeapon(aircraft->weapons, aircraft->maxWeapons, aircraft->pos, aircraft->pos) == AIRFIGHT_WEAPON_CAN_NEVER_SHOOT) {
                cgi->Com_DPrintf(DEBUG_CLIENT, "CL_DisplayPopupIntercept: No useable weapon found in craft '%s' (%i)\n", aircraft->id, aircraft->maxWeapons);
                continue;
            }
            /* now check the aircraft range */
            if (!AIR_AircraftHasEnoughFuel(aircraft, ufo->pos)) {
                cgi->Com_DPrintf(DEBUG_CLIENT, "CL_DisplayPopupIntercept: Target out of reach for craft '%s'\n", aircraft->id);
                enoughFuelMarker = "";
            }

            Com_sprintf(aircraftListText, sizeof(aircraftListText), _("%s%s (%i/%i)\t%s\t%s"), enoughFuelMarker, aircraft->name,
                AIR_GetTeamSize(aircraft), aircraft->maxTeamSize, AIR_AircraftStatusToName(aircraft), aircraft->homebase->name);
            cgi->LIST_AddString(&aircraftList, aircraftListText);
            popupIntercept.aircraft[popupIntercept.numAircraft] = aircraft;
            popupIntercept.numAircraft++;
            if (popupIntercept.numAircraft >= POPUP_INTERCEPT_MAX_AIRCRAFT)
                break;
        }
    }
    cgi->LIST_Delete(&aircraftListSorted);

    base = nullptr;
    while ((base = B_GetNext(base)) != nullptr) {
        /* Check if the base should be displayed in base list
         * don't check range because maybe UFO will get closer */
        if (AII_BaseCanShoot(base))
            cgi->LIST_AddString(&baseList, va("^B%s", base->name));
    }   /* bases */

    if (popupIntercept.numAircraft)
        cgi->UI_RegisterLinkedListText(TEXT_AIRCRAFT_LIST, aircraftList);
    else
        cgi->UI_RegisterText(TEXT_AIRCRAFT_LIST, _("No craft available, no pilot assigned, or no weapon or ammo equipped."));

    INS_Foreach(installation) {
        /* Check if the installation should be displayed in base list
         * don't check range because maybe UFO will get closer */
        if (AII_InstallationCanShoot(installation))
            cgi->LIST_AddString(&baseList, va("^B%s", installation->name));
    }

    if (baseList)
        cgi->UI_RegisterLinkedListText(TEXT_BASE_LIST, baseList);
    else
        cgi->UI_RegisterText(TEXT_BASE_LIST, _("No defence system operational or no weapon or ammo equipped."));

    /* Stop time */
    CP_GameTimeStop();

    /* Display the popup */
    cgi->UI_PushWindow("popup_intercept");
}

static aircraft_t* CL_PopupInterceptGetAircraft (void)
{
    int num;

    if (cgi->Cmd_Argc() < 2)
        return nullptr;

    /* Get the selected aircraft */
    num = atoi(cgi->Cmd_Argv(1));
    if (num < 0 || num >= popupIntercept.numAircraft)
        return nullptr;

    cgi->UI_PopWindow(false);
    if (!popupIntercept.aircraft[num])
        return nullptr;
    return popupIntercept.aircraft[num];
}

static void CL_PopupInterceptClick_f (void)
{
    aircraft_t* aircraft;
    base_t* base;

    /* Get the selected aircraft */
    aircraft = CL_PopupInterceptGetAircraft();
    if (aircraft == nullptr)
        return;

    /* Aircraft can start if only Command Centre in base is operational. */
    base = aircraft->homebase;
    if (!B_GetBuildingStatus(base, B_COMMAND)) {
        CP_Popup(_("Notice"), _("No Command Centre operational in homebase\nof this aircraft.\n\nAircraft cannot start.\n"));
        return;
    }

    /* Set action to aircraft */
    if (popupIntercept.mission)
        AIR_SendAircraftToMission(aircraft, popupIntercept.mission);    /* Aircraft move to mission */
    else if (popupIntercept.ufo)
        AIR_SendAircraftPursuingUFO(aircraft, popupIntercept.ufo);  /* Aircraft purchase ufo */
}

static void CL_PopupInterceptRClick_f (void)
{
    aircraft_t* aircraft;

    /* Get the selected aircraft */
    aircraft = CL_PopupInterceptGetAircraft();
    if (aircraft == nullptr)
        return;

    /* Display aircraft menu */
    AIR_AircraftSelect(aircraft);
    GEO_ResetAction();
    B_SelectBase(aircraft->homebase);
    cgi->UI_PushWindow("aircraft");
}

static void CL_PopupInterceptBaseClick_f (void)
{
    if (cgi->Cmd_Argc() < 2) {
        cgi->Com_Printf("Usage: %s <num>\tnum=num in base list\n", cgi->Cmd_Argv(0));
        return;
    }

    /* If popup is opened, that means that ufo is selected on geoscape */
    if (GEO_GetSelectedUFO() == nullptr)
        return;

    int num = atoi(cgi->Cmd_Argv(1));

    base_t* base = nullptr;
    bool atLeastOneBase = false;
    while ((base = B_GetNext(base)) != nullptr) {
        /* Check if the base should be displayed in base list */
        if (AII_BaseCanShoot(base)) {
            num--;
            atLeastOneBase = true;
            if (num < 0)
                break;
        }
    }

    installation_t* installation = nullptr;
    if (num >= 0) { /* don't try to find an installation if we already found the right base */
        INS_Foreach(inst) {
            /* Check if the installation should be displayed in base list */
            if (AII_InstallationCanShoot(inst)) {
                num--;
                atLeastOneBase = true;
                if (num < 0) {
                    installation = inst;
                    break;
                }
            }
        }
    }

    if (!atLeastOneBase && !num) {
        /* no base in list: no error message
         * note that num should always be 0 if we enter this loop, unless this function is called from console
         * so 2nd part of the test should be useless in most case */
        return;
    } else if (num >= 0) {
        cgi->Com_Printf("CL_PopupInterceptBaseClick_f: Number given in argument (%i) is bigger than number of base in list.\n", num);
        return;
    }

    assert(base || installation);
    int i;
    if (installation) {
        for (i = 0; i < installation->installationTemplate->maxBatteries; i++)
            installation->batteries[i].target = GEO_GetSelectedUFO();
    } else {
        for (i = 0; i < base->numBatteries; i++)
            base->batteries[i].target = GEO_GetSelectedUFO();
        for (i = 0; i < base->numLasers; i++)
            base->lasers[i].target = GEO_GetSelectedUFO();
    }

    cgi->UI_PopWindow(false);
}

void CL_PopupInit (void)
{
    /* popup_intercept commands */
    cgi->Cmd_AddCommand("ships_click", CL_PopupInterceptClick_f, nullptr);
    cgi->Cmd_AddCommand("ships_rclick", CL_PopupInterceptRClick_f, nullptr);
    cgi->Cmd_AddCommand("bases_click", CL_PopupInterceptBaseClick_f, nullptr);

    /* popup_homebase commands */
    cgi->Cmd_AddCommand("change_homebase", CL_PopupChangeHomebase_f, nullptr);

    OBJZERO(popupIntercept);
}

void CP_Popup (const char* title, const char* text, ...)
{
    static char msg[1024];
    va_list argptr;

    va_start(argptr, text);
    Q_vsnprintf(msg, sizeof(msg), text, argptr);
    va_end(argptr);

    cgi->UI_Popup(title, msg);
}