chr_shared.cpp

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/*
Copyright (C) 2002-2023 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 "q_shared.h"
#include "chr_shared.h"

character_s::character_s ()
{
    init();
}

void character_s::init ()
{
    name[0] = path[0] = body[0] = head[0] = '\0';
    ucn = bodySkin = headSkin = HP = minHP = maxHP = STUN = morale = state = gender = 0;
    fieldSize = ACTOR_SIZE_INVALID;
    scoreMission = nullptr;
    teamDef = nullptr;
    inv.init();
    RFmode.set(ACTOR_HAND_NOT_SET, 0, nullptr);
    wounds = woundInfo_t();
    score = chrScoreGlobal_t();
    reservedTus = chrReservations_t();
    for (int i = 0; i < MAX_CHARACTER_IMPLANTS; i++)
        implants[i] = implant_t();
}

const char* teamDef_s::getActorSound (int gender, actorSound_t soundType) const
{
    if (gender < 0 || gender >= NAME_LAST) {
        Com_DPrintf(DEBUG_SOUND|DEBUG_CLIENT, "getActorSound: invalid gender: %i\n", gender);
        return nullptr;
    }
    if (numSounds[soundType][gender] <= 0) {
        Com_DPrintf(DEBUG_SOUND|DEBUG_CLIENT, "getActorSound: no sound defined for sound type: %i, teamID: '%s', gender: %i\n", soundType, id, gender);
        return nullptr;
    }

    // Can't use LIST_GetRandom() or LIST_GetByIdx() in the game module
    const int random = rand() % numSounds[soundType][gender];
    const linkedList_t* list = sounds[soundType][gender];
    for (int j = 0; j < random; j++) {
        assert(list);
        list = list->next;
    }

    assert(list);
    assert(list->data);
    return (const char*)list->data;
}

bool CHRSH_IsTeamDefAlien (const teamDef_t* const td)
{
    return td->team == TEAM_ALIEN;
}

bool CHRSH_IsArmourUseableForTeam (const objDef_t* od, const teamDef_t* teamDef)
{
    assert(teamDef);
    assert(od->isArmour());

    if (!teamDef->armour)
        return false;

    return od->useable == teamDef->team;
}

bool CHRSH_IsTeamDefRobot (const teamDef_t* const td)
{
    return td->robot;
}

const chrTemplate_t* CHRSH_GetTemplateByID (const teamDef_t* teamDef, const char* templateId)
{
    if (!Q_strnull(templateId))
        for (int i = 0; i < teamDef->numTemplates; i++)
            if (Q_streq(teamDef->characterTemplates[i]->id, templateId))
                return teamDef->characterTemplates[i];

    return nullptr;
}

static void CHRSH_UpdateCharacterWithEffect (character_t& chr, const itemEffect_t& e)
{
    chrScoreGlobal_t& s = chr.score;
    if (fabs(e.accuracy) > EQUAL_EPSILON)
        s.skills[ABILITY_ACCURACY] *= 1.0f + e.accuracy;
    if (fabs(e.mind) > EQUAL_EPSILON)
        s.skills[ABILITY_MIND] *= 1.0f + e.mind;
    if (fabs(e.power) > EQUAL_EPSILON)
        s.skills[ABILITY_POWER] *= 1.0f + e.power;
    if (fabs(e.TUs) > EQUAL_EPSILON)
        s.skills[ABILITY_SPEED] *= 1.0f + e.TUs;

    if (fabs(e.morale) > EQUAL_EPSILON)
        chr.morale *= 1.0f + e.morale;
}

void CHRSH_UpdateImplants (character_t& chr)
{
    for (int i = 0; i < lengthof(chr.implants); i++) {
        implant_t& implant = chr.implants[i];
        const implantDef_t* def = implant.def;
        /* empty slot */
        if (def == nullptr || def->item == nullptr)
            continue;
        const objDef_t& od = *def->item;
        const itemEffect_t* e = od.strengthenEffect;

        if (implant.installedTime > 0) {
            implant.installedTime--;
            if (implant.installedTime == 0 && e != nullptr && e->isPermanent) {
                CHRSH_UpdateCharacterWithEffect(chr, *e);
            }
        }

        if (implant.removedTime > 0) {
            implant.removedTime--;
            if (implant.removedTime == 0) {
                implant.def = nullptr;
                continue;
            }
        }
        if (e == nullptr || e->period <= 0)
            continue;

        implant.trigger--;
        if (implant.trigger <= 0)
            continue;

        CHRSH_UpdateCharacterWithEffect(chr, *e);
        implant.trigger = e->period;
    }
}

const implant_t* CHRSH_ApplyImplant (character_t& chr, const implantDef_t& def)
{
    const objDef_t& od = *def.item;

    if (!od.implant) {
        Com_Printf("object '%s' is no implant\n", od.id);
        return nullptr;
    }

    const itemEffect_t* e = od.strengthenEffect;
    if (e != nullptr && e->period <= 0 && !e->isPermanent) {
        Com_Printf("object '%s' is not permanent\n", od.id);
        return nullptr;
    }

    for (int i = 0; i < lengthof(chr.implants); i++) {
        implant_t& implant = chr.implants[i];
        /* already filled slot */
        if (implant.def != nullptr)
            continue;

        implant = implant_t();
        implant.def = &def;
        if (e != nullptr && !e->isPermanent)
            implant.trigger = e->period;
        implant.installedTime = def.installationTime;

        return &chr.implants[i];
    }
    Com_Printf("no free implant slot\n");
    return nullptr;
}

void CHRSH_CharGenAbilitySkills (character_t* chr, bool multiplayer, const char* templateId)
{
    const chrTemplate_t* chrTemplate;
    const teamDef_t* teamDef = chr->teamDef;

    if (multiplayer && teamDef->team == TEAM_PHALANX)
        /* @todo Hard coded template id, remove when possible */
        templateId = "soldier_mp";

    if (!Q_strnull(templateId)) {
        chrTemplate = CHRSH_GetTemplateByID(teamDef, templateId);
        if (!chrTemplate)
            Sys_Error("CHRSH_CharGenAbilitySkills: Character template not found (%s) in %s", templateId, teamDef->id);
    } else if (teamDef->characterTemplates[0]) {
        if (teamDef->numTemplates > 1) {
            float sumRate = 0.0f;
            for (int i = 0; i < teamDef->numTemplates; i++) {
                chrTemplate = teamDef->characterTemplates[i];
                sumRate += chrTemplate->rate;
            }
            if (sumRate > 0.0f) {
                const float soldierRoll = frand();
                float curRate = 0.0f;
                for (chrTemplate = teamDef->characterTemplates[0]; chrTemplate->id; chrTemplate++) {
                    curRate += chrTemplate->rate;
                    if (curRate && soldierRoll <= (curRate / sumRate))
                        break;
                }
            } else {
                /* No rates or all set to 0 default to first template */
                chrTemplate = teamDef->characterTemplates[0];
            }
        } else {
            /* Only one template */
            chrTemplate = teamDef->characterTemplates[0];
        }
    } else {
        Sys_Error("CHRSH_CharGenAbilitySkills: No character template for team %s!", teamDef->id);
    }

    assert(chrTemplate);
    const int (*skillsTemplate)[2] = chrTemplate->skills;

    /* Abilities and skills -- random within the range */
    for (int i = 0; i < SKILL_NUM_TYPES; i++) {
        const int abilityWindow = skillsTemplate[i][1] - skillsTemplate[i][0];
        /* Reminder: In case if abilityWindow==0 the ability will be set to the lower limit. */
        const int temp = (frand() * abilityWindow) + skillsTemplate[i][0];
        chr->score.skills[i] = temp;
        chr->score.initialSkills[i] = temp;
    }

    /* Health. */
    const int abilityWindow = skillsTemplate[SKILL_NUM_TYPES][1] - skillsTemplate[SKILL_NUM_TYPES][0];
    const int temp = (frand() * abilityWindow) + skillsTemplate[SKILL_NUM_TYPES][0];
    chr->score.initialSkills[SKILL_NUM_TYPES] = temp;
    chr->maxHP = temp;
    chr->HP = temp;

    /* Morale */
    chr->morale = GET_MORALE(chr->score.skills[ABILITY_MIND]);
    if (chr->morale >= MAX_SKILL)
        chr->morale = MAX_SKILL;

    /* Initialize the experience values */
    for (int i = 0; i <= SKILL_NUM_TYPES; i++) {
        chr->score.experience[i] = 0;
    }
}

const char* CHRSH_CharGetBody (const character_t* const chr)
{
    static char returnModel[MAX_VAR];

    /* models of UGVs don't change - because they are already armoured */
    if (chr->inv.getArmour() && !CHRSH_IsTeamDefRobot(chr->teamDef)) {
        const objDef_t* od = chr->inv.getArmour()->def();
        const char* id = od->armourPath;
        if (!od->isArmour())
            Sys_Error("CHRSH_CharGetBody: Item is no armour");

        Com_sprintf(returnModel, sizeof(returnModel), "%s%s/%s", chr->path, id, chr->body);
    } else
        Com_sprintf(returnModel, sizeof(returnModel), "%s/%s", chr->path, chr->body);
    return returnModel;
}

const char* CHRSH_CharGetHead (const character_t* const chr)
{
    static char returnModel[MAX_VAR];

    /* models of UGVs don't change - because they are already armoured */
    if (chr->inv.getArmour() && !chr->teamDef->robot) {
        const objDef_t* od = chr->inv.getArmour()->def();
        const char* id = od->armourPath;
        if (!od->isArmour())
            Sys_Error("CHRSH_CharGetBody: Item is no armour");

        Com_sprintf(returnModel, sizeof(returnModel), "%s%s/%s", chr->path, id, chr->head);
    } else
        Com_sprintf(returnModel, sizeof(returnModel), "%s/%s", chr->path, chr->head);
    return returnModel;
}

BodyData::BodyData (void) :
        _totalBodyArea(0.0f), _numBodyParts(0)
{
}

short BodyData::getRandomBodyPart (void) const
{
    const float rnd = frand() * _totalBodyArea;
    float currentArea = 0.0f;
    short bodyPart;

    for (bodyPart = 0; bodyPart < _numBodyParts; ++bodyPart) {
        currentArea += getArea(bodyPart);
        if (rnd <= currentArea)
            break;
    }
    if (bodyPart >= _numBodyParts) {
        bodyPart = 0;
        Com_DPrintf(DEBUG_SHARED, "Warning: No bodypart hit, defaulting to %s!\n", name(bodyPart));
    }
    return bodyPart;
}

const char* BodyData::id (void) const
{
    return _id;
}

const char* BodyData::id (const short bodyPart) const
{
    return _bodyParts[bodyPart].id;
}

const char* BodyData::name (const short bodyPart) const
{
    return _bodyParts[bodyPart].name;
}

float BodyData::penalty (const short bodyPart, const modifier_types_t type) const
{
    return _bodyParts[bodyPart].penalties[type] * 0.01f;
}

float BodyData::bleedingFactor (const short bodyPart) const
{
    return _bodyParts[bodyPart].bleedingFactor * 0.01f;
}

float BodyData::woundThreshold (const short bodyPart) const
{
    return _bodyParts[bodyPart].woundThreshold * 0.01f;
}

short BodyData::numBodyParts (void) const
{
    return _numBodyParts;
}

void BodyData::setId (const char* id)
{
    Q_strncpyz(_id, id, sizeof(_id));
}

void BodyData::addBodyPart (const BodyPartData& bodyPart)
{
    _bodyParts[_numBodyParts] = bodyPart;
    _totalBodyArea += getArea(_numBodyParts++);
}

short BodyData::getHitBodyPart (const byte direction, const float height) const
{
    const float rnd = frand();
    short bodyPart;
    float curRand = 0;

    for (bodyPart = 0; bodyPart < _numBodyParts; ++bodyPart) {
        vec4_t shape;
        Vector4Copy(_bodyParts[bodyPart].shape, shape);
        if (height <= shape[3] || height > shape[2] + shape[3])
            continue;
        curRand += (direction < 2 ? shape[0] : (direction < 4 ? shape[1] : (shape[0] + shape[1]) * 0.5f));
        if (rnd <= curRand)
            break;
    }
    if (bodyPart >= _numBodyParts) {
        bodyPart = 0;
        Com_DPrintf(DEBUG_SHARED, "Warning: No bodypart hit, defaulting to %s!\n", name(bodyPart));
    }
    return bodyPart;
}

float BodyData::getArea(const short bodyPart) const
{
    return (_bodyParts[bodyPart].shape[0] + _bodyParts[bodyPart].shape[1]) * 0.5f * _bodyParts[bodyPart].shape[2];
}