e_event_invadd.cpp

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/*
Copyright (C) 2002-2025 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 "../../../../client.h"
#include "../../../cl_localentity.h"
#include "e_event_invadd.h"

static void CL_NetReceiveItem (dbuffer* buf, Item* item, containerIndex_t* container, int* x, int* y)
{
    const eventRegister_t* eventData = CL_GetEvent(EV_INV_TRANSFER);
 
    /* reset */
    int itemIdx, ammoIdx;
    int ammoleft = NONE_AMMO;
    int amount = 0;
    item->setDef(nullptr);
    item->setAmmoDef(nullptr);
    NET_ReadFormat(buf, eventData->formatString, &itemIdx, &ammoleft, &ammoIdx, container, x, y, &item->rotated, &amount);
    item->setAmmoLeft(ammoleft);
    item->setAmount(amount);
    item->setDef(INVSH_GetItemByIDX(itemIdx));
    item->setAmmoDef(INVSH_GetItemByIDX(ammoIdx));
 
    if (!item->def())
        Com_Error(ERR_DROP, "no weapon given for item");
}

int CL_InvAddTime (const struct eventRegister_s* self, dbuffer* msg, eventTiming_t* eventTiming)
{
    if (eventTiming->parsedShot) {
        if (eventTiming->parsedDeath) { /* drop items after death (caused by impact) */
            /* EV_INV_ADD messages are the last events sent after a death */
            eventTiming->parsedDeath = false;
            return eventTiming->impactTime + 1400;
        } else if (eventTiming->impactTime > cl.time) { /* item thrown on the ground */
            return eventTiming->impactTime + 75;
        }
    }
 
    return eventTiming->nextTime;
}

void CL_InvAdd (const eventRegister_t* self, dbuffer* msg)
{
    const int number = NET_ReadShort(msg);
    le_t* le = LE_Get(number);
    int nr = NET_ReadShort(msg);
 
    if (!le)
        LE_NotFoundError(number);
 
    le->flags &= ~LE_REMOVE_NEXT_FRAME;
 
    for (; nr-- > 0;) {
        Item item;
        containerIndex_t container;
        int x, y;
        CL_NetReceiveItem(msg, &item, &container, &x, &y);
 
        if (LE_IsItem(le)) {
            if (container != CID_FLOOR)
                Com_Error(ERR_DROP, "InvAdd for ET_ITEM but target container is not the floor but %i", container);
        } else if (INVDEF(container)->temp) {
            Com_Error(ERR_DROP, "InvAdd for %i to temp container %i", le->type, container);
        }
 
        if (cls.i.addToInventory(&le->inv, &item, INVDEF(container), x, y, item.getAmount()) == nullptr)
            Com_Error(ERR_DROP, "InvAdd failed - could not add %i item(s) of %s to container %i",
                    item.getAmount(), item.def()->id, container);
 
        if (container == CID_RIGHT)
            le->right = item.def()->idx;
        else if (container == CID_LEFT)
            le->left = item.def()->idx;
        else if (container == CID_HEADGEAR)
            le->headgear = item.def()->idx;
    }
 
    switch (le->type) {
    case ET_ACTOR:
    case ET_ACTOR2x2:
        if (LE_IsSelected(le))
            Cmd_ExecuteString("hud_updateactorload");
        LE_SetThink(le, LET_StartIdle);
        break;
    case ET_ITEM:
        LE_PlaceItem(le);
        break;
    default:
        break;
    }
}