g_round.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 "g_local.h"
#include "g_actor.h"
#include "g_ai.h"
#include "g_client.h"
#include "g_edicts.h"
#include "g_health.h"
#include "g_match.h"
#include "g_reaction.h"
#include "g_utils.h"
#include "g_vis.h"

void G_CheckForceEndRound (void)
{
    /* check for roundlimits in multiplayer only */
    if (!sv_roundtimelimit->integer || G_IsSinglePlayer())
        return;
 
    if (!G_MatchIsRunning())
        return;
 
    if (level.time != ceil(level.time))
        return;
 
    const int diff = level.roundstartTime + sv_roundtimelimit->integer - level.time;
    switch (diff) {
    case 240:
        gi.BroadcastPrintf(PRINT_HUD, _("4 minutes left until forced turn end."));
        return;
    case 180:
        gi.BroadcastPrintf(PRINT_HUD, _("3 minutes left until forced turn end."));
        return;
    case 120:
        gi.BroadcastPrintf(PRINT_HUD, _("2 minutes left until forced turn end."));
        return;
    case 60:
        gi.BroadcastPrintf(PRINT_HUD, _("1 minute left until forced turn end."));
        return;
    case 30:
        gi.BroadcastPrintf(PRINT_HUD, _("30 seconds left until forced turn end."));
        return;
    case 15:
        gi.BroadcastPrintf(PRINT_HUD, _("15 seconds left until forced turn end."));
        return;
    }
 
    /* active team still has time left */
    if (level.time < level.roundstartTime + sv_roundtimelimit->integer)
        return;
 
    gi.BroadcastPrintf(PRINT_HUD, _("Current active team hit the max round time."));
 
    /* store this in a local variable, as the global variable is changed in G_ClientEndRound */
    const int activeTeam = level.activeTeam;
    /* set all team members to ready (only human players) */
    Player* p = nullptr;
    while ((p = G_PlayerGetNextActiveHuman(p))) {
        if (p->getTeam() == activeTeam) {
            G_ClientEndRound(*p);
            level.nextEndRound = level.framenum;
        }
    }
 
    level.roundstartTime = level.time;
}

static int G_PlayerSoldiersCount (const Player& player)
{
    int cnt = 0;
    Actor* actor = nullptr;
 
    while ((actor = G_EdictsGetNextLivingActor(actor))) {
        if (actor->getPlayerNum() == player.getNum())
            cnt++;
    }
 
    return cnt;
}

static void G_UpdateStunState (int team)
{
    const int regen = 1;
 
    Actor* actor = nullptr;
    while ((actor = G_EdictsGetNextLivingActorOfTeam(actor, team))) {
        const int stun = actor->getStun();
        if (stun > 0) {
            if (regen > stun)
                actor->setStun(0);
            else
                actor->addStun(-regen);
 
            G_ActorCheckRevitalise(actor);
        }
    }
}

static void G_UpdateCarriedWeight (int team)
{
    Actor* actor = nullptr;
 
    while ((actor = G_EdictsGetNextLivingActorOfTeam(actor, team))) {
        if (actor->chr.scoreMission) {
            actor->chr.scoreMission->carriedWeight += actor->chr.inv.getWeight();
        }
    }
}
 
static void G_RoundTouchTriggers (int team)
{
    Actor* actor = nullptr;
 
    while ((actor = G_EdictsGetNextLivingActorOfTeam(actor, team))) {
        G_TouchTriggers(actor);
    }
}

static void G_GetNextActiveTeam (void)
{
    const int lastTeam = G_GetActiveTeam();
 
    Com_DPrintf(DEBUG_GAME, "round end from team %i\n", lastTeam);
    level.activeTeam = TEAM_NO_ACTIVE;
 
    /* search next team */
    for (int i = 1; i < MAX_TEAMS; i++) {
        const int team = (lastTeam + i) % MAX_TEAMS;
        if (level.num_alive[team]) {
            /* found next player */
            level.activeTeam = team;
            Com_DPrintf(DEBUG_GAME, "round start for team %i\n", team);
            break;
        }
    }
}

void G_ClientEndRound (Player& player)
{
    const int lastTeamIndex = (G_GetActiveTeam() + level.teamOfs) % MAX_TEAMS;
 
    if (!G_IsAIPlayer(&player)) {
        /* inactive players can't end their inactive turn :) */
        if (level.activeTeam != player.getTeam())
            return;
 
        /* check for "team oszillation" */
        if (level.framenum < level.nextEndRound)
            return;
 
        level.nextEndRound = level.framenum + 20;
    }
 
    /* only use this for teamplay matches like coopX or fight2on2 and above
     * also skip this for ai players, this is only called when all ai actors
     * have finished their 'thinking' */
    if (!G_IsAIPlayer(&player) && sv_teamplay->integer) {
        /* check if all team members are ready */
        if (!player.roundDone) {
            player.roundDone = true;
            G_EventEndRoundAnnounce(player);
            G_EventEnd();
        }
        Player* p = nullptr;
        while ((p = G_PlayerGetNextActiveHuman(p)))
            if (p->getTeam() == level.activeTeam && !p->roundDone && G_PlayerSoldiersCount(*p) > 0)
                return;
        p = nullptr;
        while ((p = G_PlayerGetNextActiveAI(p)))
            if (p->getTeam() == level.activeTeam && !p->roundDone && G_PlayerSoldiersCount(*p) > 0)
                return;
    } else {
        player.roundDone = true;
    }
 
    /* clear any remaining reaction fire */
    G_ReactionFireOnEndTurn();
 
    if (!G_IsAIPlayer(&player)) {
        if (g_lastseen->integer > 0) {
            Actor* actor = nullptr;
            while ((actor = G_EdictsGetNextActor(actor))) {
                if (G_IsAI(actor) && G_IsVisibleForTeam(actor, level.activeTeam)) {
                    player.lastSeen = level.actualRound;
                    break;
                }
            }
            if (level.actualRound - player.lastSeen > g_lastseen->integer) {
                Com_Printf("round end triggered by g_lastseen (player %i (team %i) last seen in round %i of %i rounds)\n",
                        player.getNum(), level.activeTeam, player.lastSeen, level.actualRound);
                G_MatchEndTrigger(-1, 0);
            }
        }
    }
 
    /* Wounded team members bleed now */
    G_BleedWounds(level.activeTeam);
 
    /* let all the invisible players perish now */
    G_CheckVisTeamAll(level.activeTeam, VIS_APPEAR, nullptr);
 
    G_GetNextActiveTeam();
 
    AI_CheckRespawn(TEAM_ALIEN);
 
    /* no other team left? */
    if (!G_MatchIsRunning())
        return;
 
    if (lastTeamIndex > (level.activeTeam + level.teamOfs) % MAX_TEAMS)
        level.actualRound++;
 
    /* communicate next player in row to clients */
    G_EventEndRound();
 
    /* store the round start time to be able to abort the round after a give time */
    level.roundstartTime = level.time;
 
    G_RoundTouchTriggers(level.activeTeam);
 
    /* Update the state of stuned team-members. The actual statistics are sent below! */
    G_UpdateStunState(level.activeTeam);
 
    /* Give the actors of the now active team their TUs. */
    G_GiveTimeUnits(level.activeTeam);
 
    G_UpdateCarriedWeight(level.activeTeam);
 
    /* apply morale behaviour, reset reaction fire */
    G_ReactionFireReset(level.activeTeam);
    if (mor_panic->integer)
        G_MoraleBehaviour(level.activeTeam);
 
    /* start ai - there is only one player for ai teams, and the last pointer must only
     * be updated for ai players */
    Player* p = G_GetPlayerForTeam(level.activeTeam);
    if (p == nullptr)
        gi.Error("Could not find player for team %i", level.activeTeam);
 
    /* finish off events */
    G_EventEnd();
 
    /* reset ready flag for every player on the current team (even ai players) */
    p = nullptr;
    while ((p = G_PlayerGetNextActiveHuman(p))) {
        if (p->getTeam() == level.activeTeam) {
            p->roundDone = false;
        }
    }
 
    p = nullptr;
    while ((p = G_PlayerGetNextActiveAI(p))) {
        if (p->getTeam() == level.activeTeam) {
            p->roundDone = false;
        }
    }
}