openmohaa/code/fgame/simpleactor.cpp

/*
===========================================================================
Copyright (C) 2023 the OpenMoHAA team

This file is part of OpenMoHAA source code.

OpenMoHAA source code 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.

OpenMoHAA source code 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 OpenMoHAA source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/

// simpleactor.cpp: Base class for character AI

#include "actor.h"
#include "bg_local.h"
#include "scriptexception.h"
#include "scriptthread.h"
#include "../script/scriptclass.h"
#include <tiki.h>

Event EV_NoAnimLerp
(
    "noanimlerp",
    EV_DEFAULT,
    NULL,
    NULL,
    "Do not LERP to the next animation",
    EV_NORMAL
);

CLASS_DECLARATION(Sentient, SimpleActor, NULL) {
    {&EV_NoAnimLerp, &SimpleActor::EventNoAnimLerp},
    {NULL,           NULL                         }
};

#define OVERLOADED_ERROR() assert(!"overloaded version should always get called")

SimpleActor::SimpleActor()
{
    m_ChangeMotionAnimIndex = -1;
    m_ChangeActionAnimIndex = -1;
    m_ChangeSayAnimIndex    = -1;

    if (LoadingSavegame) {
        return;
    }

    m_AnimMotionHigh = true;
    m_AnimActionHigh = true;
    m_AnimDialogHigh = true;

    m_fAimLimit_up   = 60.0f;
    m_fAimLimit_down = -60.0f;

    VectorClear(m_DesiredGunDir);
    VectorClear(m_DesiredLookAngles);
    VectorClear(m_Dest);
    VectorClear(m_NoClipDest);

    for (int i = 0; i < MAX_FRAMEINFOS; i++) {
        m_weightBase[i]       = 0.0f;
        m_weightCrossBlend[i] = 0.0f;
    }

    m_eEmotionMode            = EMOTION_NEUTRAL;
    m_eNextAnimMode           = -1;
    m_csPathGoalEndAnimScript = STRING_EMPTY;
    m_bNextForceStart         = false;
    m_fCrossblendTime         = 0.5f;
    m_csCurrentPosition       = STRING_STAND;
    m_fPathGoalTime           = 0.0f;
    m_bStartPathGoalEndAnim   = false;
    m_csNextAnimString        = STRING_NULL;

    for (int i = 0; i < MAX_FRAMEINFOS; i++) {
        m_weightType[i] = 0.0f;
    }

    m_ChangeActionAnimIndex = -1;
    m_ChangeActionAnimIndex = -1;
    m_ChangeSayAnimIndex    = -1;

    m_bMotionAnimSet = false;
    m_bActionAnimSet = false;
    m_bSayAnimSet    = false;
    m_iVoiceTime     = 0;
    m_bAimAnimSet    = false;

    m_iMotionSlot       = -1;
    m_iActionSlot       = -1;
    m_iSaySlot          = -1;
    m_bLevelMotionAnim  = false;
    m_bLevelActionAnim  = false;
    m_bLevelSayAnim     = false;
    m_bNextLevelSayAnim = false;
    m_DesiredYaw        = 0.0f;
    m_YawAchieved       = true;
    m_bPathErrorTime    = -10000000;

    m_PainHandler.TrySetScript(STRING_ANIM_PAIN_SCR);
    m_DeathHandler.TrySetScript(STRING_ANIM_KILLED_SCR);
    m_AttackHandler.TrySetScript(STRING_ANIM_ATTACK_SCR);
    m_SniperHandler.TrySetScript(STRING_ANIM_SNIPER_SCR);

    m_bHasDesiredLookDest  = false;
    m_bUpdateAnimDoneFlags = false;

    m_NearestNode   = NULL;
    m_fCrouchWeight = 0.0f;

    m_csMood     = STRING_BORED;
    m_csIdleMood = STRING_BORED;

    m_groundPlane = qfalse;
    m_walking     = qfalse;
    VectorClear(m_groundPlaneNormal);
    m_maxspeed = 1000000.0f;
}

SimpleActor::~SimpleActor()
{
    if (m_pAnimThread) {
        delete m_pAnimThread->GetScriptClass();
    }
}

void SimpleActor::SetMoveInfo(mmove_t *)
{
    OVERLOADED_ERROR();
}

void SimpleActor::GetMoveInfo(mmove_t *)
{
    OVERLOADED_ERROR();
}

bool SimpleActor::CanSeeFrom(vec3_t pos, Entity *ent)
{
    return false;
}

bool SimpleActor::CanTarget(void)
{
    OVERLOADED_ERROR();
    return false;
}

bool SimpleActor::IsImmortal(void)
{
    OVERLOADED_ERROR();
    return false;
}

bool SimpleActor::DoesTheoreticPathExist(Vector vDestPos, float fMaxPath)
{
    return m_Path.DoesTheoreticPathExist(origin, vDestPos, this, fMaxPath, NULL, 0);
}

void SimpleActor::SetPath(
    Vector vDestPos, const char *description, int iMaxDirtyTime, float *vLeashHome, float fLeashDistSquared
)
{
    if (!PathExists()
        || ((level.inttime >= m_Path.Time() + iMaxDirtyTime || m_Path.Complete(origin)) && PathGoal() != vDestPos)) {
        m_Path.FindPath(origin, vDestPos, this, 0.0, vLeashHome, fLeashDistSquared);

        if (!PathExists()) {
            if (g_patherror->integer) {
                if (description) {
                    int thinkState = ((Actor *)this)->m_ThinkState;
                    if (g_patherror->integer == 1
                        || (g_patherror->integer == 2
                            && (thinkState == THINKSTATE_IDLE || thinkState == THINKSTATE_CURIOUS))) {
                        if (m_bPathErrorTime + 5000 < level.inttime) {
                            m_bPathErrorTime = level.inttime;
                            Com_Printf(
                                "^~^~^ Path not found in '%s' for (entnum %d, radnum %d, targetname '%s') from (%f %f "
                                "%f) to (%f %f %f)\n",
                                description,
                                entnum,
                                radnum,
                                targetname.c_str(),
                                origin.x,
                                origin.y,
                                origin.z,
                                vDestPos.x,
                                vDestPos.y,
                                vDestPos.z
                            );
                            Com_Printf("Reason: %s\n", PathSearch::last_error);
                        }
                    }
                }
            }
        }
    }
}

void SimpleActor::SetPath(SimpleEntity *pDestNode, const char *description, int iMaxDirtyTime)
{
    if (pDestNode) {
        SetPath(pDestNode->origin, description, iMaxDirtyTime, NULL, 0.0);
    } else {
        if (m_bPathErrorTime + 5000 < level.inttime) {
            m_bPathErrorTime = level.inttime;
            Com_Printf(
                "^~^~^ No destination node specified for '%s' at (%f %f %f)\n",
                targetname.c_str(),
                origin.x,
                origin.y,
                origin.z
            );
        }
        ClearPath();
    }
}

void SimpleActor::SetPathWithinDistance(Vector vDestPos, char *description, float fMaxPath, int iMaxDirtyTime)
{
    SetPath(vDestPos, description, iMaxDirtyTime, NULL, 0);
}

void SimpleActor::FindPathAway(vec_t *vAwayFrom, vec_t *vDirPreferred, float fMinSafeDist)
{
    m_Path.FindPathAway(origin, vAwayFrom, vDirPreferred, this, fMinSafeDist, NULL, 0);

    ShortenPathToAvoidSquadMates();
}

void SimpleActor::ClearPath(void)
{
    m_Path.Clear();
}

bool SimpleActor::PathComplete(void) const
{
    if (level.time >= m_fPathGoalTime) {
        if (m_Path.Complete(origin)) {
            return true;
        }
    }

    return false;
}

bool SimpleActor::PathExists(void) const
{
    return m_Path.CurrentNode() != NULL;
}

bool SimpleActor::PathIsValid(void) const
{
    //Called by SetPath...
    return true;
}

bool SimpleActor::PathAvoidsSquadMates(void) const
{
    Entity *player;
    float   fDelta;
    float   fDistSoFar;
    float   fDistCap;
    float   vDelta2[2];
    float   vMins[3];
    float   vMaxs[3];
    float   vPos[3];
    //Sentient *pOther;
    Sentient *pBuddy[256];
    int       iNumBuddies;
    int       i;
    //float fRatio;

    if (ai_pathchecktime->value <= 0.0) {
        return true;
    }
    player = G_GetEntity(0);
    if (!player) {
        return true;
    }

    //player = G_GetEntity(0);
    //player = G_GetEntity(0);
    VectorSub2D(player->origin, origin, vDelta2);
    if (VectorLength2D(vDelta2) > Square(ai_pathcheckdist->value)) {
        return true;
    }

    fDistCap   = (ai_pathchecktime->value * 250.0);
    fDistSoFar = 0;

    VectorCopy(vMins, CurrentPathNode()->point);
    VectorCopy(vMaxs, CurrentPathNode()->point);
    PathInfo *pNode = CurrentPathNode() - 1;

    while (1) {
        if (pNode < LastPathNode()) {
            break;
        }

        if (fDistSoFar <= fDistCap) {
            break;
        }

        fDelta = fDistCap + 0.001 - fDistSoFar;

        if (pNode->dist < fDelta) {
            VectorCopy(pNode->point, vPos);
        } else {
            VectorSubtract(pNode[1].point, pNode[0].point, vPos);
            VectorMA(pNode[1].point, fDelta / pNode->dist, vPos, vPos);
        }

        if (vPos[0] > vMaxs[0]) {
            vMaxs[0] = vPos[0];
        } else {
            if (vPos[0] < vMins[0]) {
                vMins[0] = vPos[0];
            }
        }

        if (vPos[1] > vMaxs[1]) {
            vMaxs[1] = vPos[1];
        } else {
            if (vPos[1] < vMins[1]) {
                vMins[1] = vPos[1];
            }
        }

        if (vPos[2] > vMaxs[2]) {
            vMaxs[2] = vPos[2];
        } else {
            if (vPos[2] < vMins[2]) {
                vMins[2] = vPos[2];
            }
        }

        fDistSoFar += fDelta;
        pNode--;
    }

    vMins[0] -= 30;
    vMins[1] -= 30;
    vMins[2] -= 94;

    vMaxs[0] += 30;
    vMaxs[1] += 30;
    vMaxs[2] += 94;

    iNumBuddies = 0;
    if ((Sentient *)m_pNextSquadMate != this) {
        do {
            if (m_pNextSquadMate->origin[0] > vMins[0] && m_pNextSquadMate->origin[0] < vMaxs[0]
                && m_pNextSquadMate->origin[1] > vMins[1] && m_pNextSquadMate->origin[1] < vMaxs[1]
                && m_pNextSquadMate->origin[2] > vMins[2] && m_pNextSquadMate->origin[2] < vMaxs[2]) {
                VectorSub2D(m_pNextSquadMate->origin, origin, vDelta2);
                if (vDelta2[0] <= -32 || vDelta2[0] >= 32 || vDelta2[1] <= -32 || vDelta2[1] >= 32) {
                    if (DotProduct2D(vDelta2, m_pNextSquadMate->velocity) <= 0) {
                        pBuddy[iNumBuddies++] = m_pNextSquadMate;
                    }
                }
            }
        } while ((Sentient *)m_pNextSquadMate != this && iNumBuddies <= 255);
    }

    if (iNumBuddies == 0) {
        return true;
    }
    float fDist;
    while (1) {
        i = 0;

        if (iNumBuddies > 0) {
            break;
        }
    weird_lbl:
        pNode++;

        VectorCopy2D(pNode->point, vPos);
        fDist = pNode->dist;

        if (pNode >= CurrentPathNode()) {
            return true;
        }
    }
    float fDot;
    while (1) {
        VectorSub2D(pBuddy[i]->origin, vPos, vDelta2);
        if (VectorLength2D(vDelta2) <= 900) {
            return false;
        }
        fDot = DotProduct2D(vDelta2, pNode->dir);
        if (fDot < 0.0 && -fDist <= fDot) {
            if (Square(CrossProduct2D(vDelta2, pNode->dir)) <= 900) {
                return false;
            }
        }
        if (++i >= iNumBuddies) {
            goto weird_lbl;
        }
    }
}

void SimpleActor::ShortenPathToAvoidSquadMates(void)
{
    if (PathExists() && !PathComplete()) {
        Vector vBuddyPos;
        Vector vDelta;
        Vector vGoal;
        do {
            vGoal             = PathGoal();
            Actor *pSquadMate = (Actor *)m_pNextSquadMate.Pointer();
            if (pSquadMate == this) {
                break;
            }

            while (true) {
                vGoal     = PathGoal();
                vBuddyPos = pSquadMate->origin;
                if (pSquadMate->IsSubclassOfActor() && pSquadMate->PathExists()) {
                    vBuddyPos = pSquadMate->PathGoal();
                }
                vDelta.x = vGoal[0] - vBuddyPos.x;
                if (vDelta.x >= -15.0 && vDelta.x <= 15.0) {
                    vDelta.y = vGoal[1] - vBuddyPos.y;
                    vDelta.z = vGoal[2] - vBuddyPos.z;

                    if (vDelta.y >= -15.0 && vDelta.y <= 15.0 && vDelta.z >= 0.0 && vDelta.z <= 94.0) {
                        break;
                    }
                }
                pSquadMate = (Actor *)pSquadMate->m_pNextSquadMate.Pointer();
                if (pSquadMate == this) {
                    return;
                }
            }
            m_Path.Shorten(45.0);

        } while (PathExists());
    }
}

Vector SimpleActor::PathGoal(void) const
{
    return LastPathNode()->point;
}

bool SimpleActor::PathGoalSlowdownStarted(void) const
{
    return m_fPathGoalTime >= level.time;
}

const float *SimpleActor::PathDelta(void) const
{
    return m_Path.CurrentDelta();
}

PathInfo *SimpleActor::CurrentPathNode(void) const
{
    return m_Path.CurrentNode();
}

PathInfo *SimpleActor::LastPathNode(void) const
{
    return m_Path.LastNode();
}

float SimpleActor::PathDist(void) const
{
    return m_Path.TotalDist();
}

bool SimpleActor::PathHasCompleteLookahead(void) const
{
    return m_Path.HasCompleteLookahead();
}

void SimpleActor::UpdateEmotion(void)
{
    int anim;
    if (IsDead()) {
        Anim_Emotion(EMOTION_DEAD);
    }

    anim = GetEmotionAnim();

    if (anim == -1) {
        Com_Printf(
            "Failed to set emotion for (entnum %d, radnum %d, targetname '%s'\n", entnum, radnum, targetname.c_str()
        );
    } else {
        m_bSayAnimSet = true;
        StartSayAnimSlot(anim);
    }
}

int SimpleActor::GetMotionSlot(int slot)
{
    if (m_AnimMotionHigh) {
        return slot + 3;
    } else {
        return slot;
    }
}

void SimpleActor::ChangeMotionAnim(void)
{
    //int lastMotionSlot;
    //int firstMotionSlot;
    int iSlot;
    int i;

    m_bMotionAnimSet   = false;
    m_iMotionSlot      = -1;
    m_bLevelMotionAnim = false;

    if (m_ChangeMotionAnimIndex != level.frame_skel_index) {
        m_ChangeMotionAnimIndex = level.frame_skel_index;

        MPrintf("Swapping motion channels....\n");
        for (iSlot = GetMotionSlot(0), i = 0; i < 3; i++, iSlot++) {
            StartCrossBlendAnimSlot(iSlot);
        }
        m_AnimDialogHigh = !m_AnimDialogHigh;
    }

    for (iSlot = GetMotionSlot(0), i = 0; i < 3; i++, iSlot++) {
        StopAnimating(iSlot);
    }
}

int SimpleActor::GetActionSlot(int slot)
{
    if (m_AnimActionHigh) {
        return slot + 9;
    } else {
        return slot + 6;
    }
}

void SimpleActor::ChangeActionAnim(void)
{
    int iSlot;
    int i;

    m_bAimAnimSet      = false;
    m_bActionAnimSet   = false;
    m_iActionSlot      = -1;
    m_bLevelActionAnim = false;

    if (m_ChangeActionAnimIndex != level.frame_skel_index) {
        m_ChangeActionAnimIndex = level.frame_skel_index;

        MPrintf("Swapping action channels....\n");

        iSlot = GetActionSlot(0);
        for (i = iSlot; i < iSlot + 3; i++) {
            animFlags[i] |= ANIM_NOACTION;
            StartCrossBlendAnimSlot(i);
        }
        m_AnimDialogHigh = !m_AnimDialogHigh; // toggle
    }

    iSlot = GetActionSlot(0);
    for (i = iSlot; i < iSlot + 3; i++) {
        StopAnimating(iSlot);
    }
}

int SimpleActor::GetSaySlot(void)
{
    return m_AnimDialogHigh ? 13 : 12;
}

void SimpleActor::ChangeSayAnim(void)
{
    int iSlot;

    m_bSayAnimSet   = false;
    m_bLevelSayAnim = 0;
    m_iVoiceTime    = level.inttime;
    m_iSaySlot      = -1;

    if (m_ChangeSayAnimIndex != level.frame_skel_index) {
        m_ChangeSayAnimIndex = level.frame_skel_index;

        MPrintf("Swapping dialog channel....\n");

        iSlot = GetSaySlot();
        StartCrossBlendAnimSlot(iSlot);

        m_AnimDialogHigh = !m_AnimDialogHigh; // toggle
    }

    iSlot = GetSaySlot();
    StopAnimating(iSlot);
}

void SimpleActor::StopAnimating(int slot)
{
    int index = 0;

    m_weightType[slot] = 0;
    DoExitCommands(slot);

    if (edict->s.frameInfo[slot].index || gi.TIKI_NumAnims(edict->tiki) <= 1) {
        edict->s.frameInfo[slot].index = 0;
    } else {
        edict->s.frameInfo[slot].index = 1;
    }

    animFlags[slot]                 = ANIM_LOOP | ANIM_NODELTA | ANIM_NOEXIT | ANIM_PAUSED;
    edict->s.frameInfo[slot].weight = 0;
    animtimes[slot]                 = 0;
    animFlags[slot]                 = (animFlags[slot] | ANIM_NODELTA) & ~ANIM_FINISHED;
}

void SimpleActor::EventSetAnimLength(Event *ev)
{
    int   slot;
    float length;

    if (ev->NumArgs() != 1) {
        ScriptError("bad number of arguments");
    }

    length = ev->GetFloat(1);

    if (length <= 0) {
        ScriptError("Positive lengths only allowed");
    }

    if (m_bMotionAnimSet) {
        ScriptError("Must set anim before length");
    }

    slot = GetMotionSlot(0);

    if (animFlags[slot] & ANIM_LOOP) {
        gi.Anim_Frametime(edict->tiki, edict->s.frameInfo[slot].index);

        animFlags[slot] = (animFlags[slot] | ANIM_NODELTA) & ~ANIM_FINISHED;

        animtimes[slot] = Square(gi.Anim_NumFrames(edict->tiki, edict->s.frameInfo[slot].index) - 1);

        SetOnceType(slot);
    }

    SetSyncTime(0);

    if (length > animtimes[slot]) {
        ScriptError("cannot lengthen animation which has length %f", animtimes[slot]);
    }

    animtimes[slot] = length;
    animFlags[slot] = (animFlags[slot] | ANIM_NODELTA) & ~ANIM_FINISHED;
}

void SimpleActor::EventSetCrossblendTime(Event *ev)
{
    m_fCrossblendTime = ev->GetFloat(1);
}

void SimpleActor::EventGetCrossblendTime(Event *ev)
{
    ev->AddFloat(m_fCrossblendTime);
}

void SimpleActor::StartCrossBlendAnimSlot(int slot)
{
    if (m_weightType[slot] == 1) {
        m_weightType[slot] = 4;
    } else {
        if (m_weightType[slot] < 1) {
            return;
        }
        if (m_weightType[slot] == 6) {
            m_weightType[slot] = 5;
        } else {
            m_weightType[slot] = 3;
        }
    }
    m_weightCrossBlend[slot] = 1.0;
    m_weightBase[slot]       = edict->s.frameInfo[slot].weight;
}

void SimpleActor::StartMotionAnimSlot(int slot, int anim, float weight)
{
    int iSlot = GetMotionSlot(slot);

    m_weightCrossBlend[iSlot] = 0.0;
    m_weightType[iSlot]       = 1;
    m_weightBase[iSlot]       = weight;

    NewAnim(anim, iSlot, 1.0);
    animFlags[iSlot] |= ANIM_NOACTION;

    SetTime(iSlot, 0.0);

    UpdateNormalAnimSlot(iSlot);
}

void SimpleActor::StartAimMotionAnimSlot(int slot, int anim)
{
    int iSlot = GetMotionSlot(slot);

    m_weightCrossBlend[iSlot] = 0.0;
    m_weightType[iSlot]       = 1;

    NewAnim(anim, iSlot, 1.0);
    animFlags[iSlot] |= ANIM_NOACTION;

    SetTime(iSlot, 0.0);

    UpdateNormalAnimSlot(iSlot);
}

void SimpleActor::StartActionAnimSlot(int anim)
{
    int iSlot = GetActionSlot(0);

    m_weightCrossBlend[iSlot] = 0.0;
    m_weightType[iSlot]       = 2;
    m_weightBase[iSlot]       = 1.0;

    NewAnim(anim, iSlot, 1.0);

    SetTime(iSlot, 0.0);

    UpdateNormalAnimSlot(iSlot);
}

void SimpleActor::StartSayAnimSlot(int anim)
{
    int iSlot = GetSaySlot();

    m_weightCrossBlend[iSlot] = 0.0;
    m_weightType[iSlot]       = 6;
    m_weightBase[iSlot]       = 1.0;

    NewAnim(anim, iSlot, 1.0);
    animFlags[iSlot] |= ANIM_NOACTION;

    SetTime(iSlot, 0.0);
    UpdateSayAnimSlot(iSlot);
}

void SimpleActor::StartAimAnimSlot(int slot, int anim)
{
    int iSlot = GetActionSlot(slot);

    m_weightCrossBlend[iSlot] = 0.0;
    m_weightType[iSlot]       = 7;

    NewAnim(anim, iSlot, 1.0);

    SetTime(iSlot, 0.0);

    UpdateNormalAnimSlot(iSlot);
}

void SimpleActor::SetBlendedWeight(int slot)
{
    m_bUpdateAnimDoneFlags |= 1 << slot;
    if (m_weightCrossBlend[slot] < 1.0) {
        edict->s.frameInfo[slot].weight = (3.0 - m_weightCrossBlend[slot] - m_weightCrossBlend[slot])
                                        * Square(m_weightCrossBlend[slot]) * m_weightBase[slot];
    } else {
        m_weightCrossBlend[slot]        = 1.0;
        edict->s.frameInfo[slot].weight = m_weightBase[slot];
    }
}

void SimpleActor::UpdateNormalAnimSlot(int slot)
{
    m_weightCrossBlend[slot] += m_fCrossblendTime == 0.0 ? 1.0 : level.frametime / m_fCrossblendTime;

    SetBlendedWeight(slot);
}

void SimpleActor::UpdateCrossBlendAnimSlot(int slot)
{
    m_weightCrossBlend[slot] -= m_fCrossblendTime == 0.0 ? 1.0 : level.frametime / m_fCrossblendTime;

    if (m_weightCrossBlend[slot] > 0.0) {
        SetBlendedWeight(slot);
    } else {
        m_weightType[slot]              = 8;
        edict->s.frameInfo[slot].weight = 0.0;
    }
}

void SimpleActor::UpdateCrossBlendDialogAnimSlot(int slot)
{
    m_weightCrossBlend[slot] -= m_iSaySlot < 0 ? level.frametime + level.frametime : level.frametime / 0.1;

    if (m_weightCrossBlend[slot] > 0.0) {
        SetBlendedWeight(slot);
    } else {
        m_weightType[slot]              = 8;
        edict->s.frameInfo[slot].weight = 0.0;
    }
}

void SimpleActor::UpdateSayAnimSlot(int slot)
{
    m_weightCrossBlend[slot] += m_iSaySlot < 0 ? level.frametime + level.frametime : level.frametime / 0.1;

    SetBlendedWeight(slot);
}

void SimpleActor::UpdateLastFrameSlot(int slot)
{
    StopAnimating(slot);
}

void SimpleActor::UpdateAnimSlot(int slot)
{
    int weightType = m_weightType[slot];
    switch (weightType) {
    case 0:
        break;
    case 1:
    case 2:
    case 7:
        UpdateNormalAnimSlot(slot);
        break;
    case 3:
    case 4:
        UpdateCrossBlendAnimSlot(slot);
        break;
    case 5:
        UpdateCrossBlendDialogAnimSlot(slot);
        break;
    case 6:
        UpdateSayAnimSlot(slot);
        break;
    case 8:
        UpdateLastFrameSlot(slot);
        break;
    default:
        assert(weightType && !"impleActor::UpdateAnimSlot: Bad weight type.");
        break;
    }
}

void SimpleActor::StopAllAnimating(void)
{
    SetSyncTime(0);

    for (int slot = 0; slot < MAX_FRAMEINFOS; slot++) {
        StopAnimating(slot);
    }
}

void SimpleActor::UpdateAim(void)
{
    float dir;

    int aimForwardSlot;
    int aimUpSlot;
    int aimDownSlot;

    if (m_bAimAnimSet) {
        dir = AngleNormalize180(-m_DesiredGunDir[0]);

        aimForwardSlot = GetActionSlot(0);
        aimUpSlot      = aimForwardSlot + 1;
        aimDownSlot    = aimForwardSlot + 2;

        float factor;
        if (dir < 0) {
            if (dir < m_fAimLimit_down) {
                dir = m_fAimLimit_down;
            }

            factor = dir / m_fAimLimit_down;

            m_weightBase[aimForwardSlot] = 0;
            m_weightBase[aimUpSlot]      = 1 - factor;
            m_weightBase[aimDownSlot]    = factor;
        } else {
            if (dir > m_fAimLimit_up) {
                dir = m_fAimLimit_up;
            }

            factor = dir / m_fAimLimit_up;

            m_weightBase[aimForwardSlot] = factor;
            m_weightBase[aimUpSlot]      = 1 - factor;
            m_weightBase[aimDownSlot]    = 0;
        }
        SetControllerAngles(TORSO_TAG, vec_origin);
    }
}

void SimpleActor::UpdateAimMotion(void)
{
    int slot = GetMotionSlot(0);

    if (m_fCrouchWeight < 0.0) {
        m_weightBase[slot]     = 0.0;
        m_weightBase[slot + 1] = m_fCrouchWeight + 1.0;
        m_weightBase[slot + 2] = -m_fCrouchWeight;
    } else {
        m_weightBase[slot]     = m_fCrouchWeight;
        m_weightBase[slot + 1] = 1.0 - m_fCrouchWeight;
        m_weightBase[slot + 2] = 0.0;
    }
}

void SimpleActor::EventGetPosition(Event *ev)
{
    ev->AddConstString(m_csCurrentPosition);
}

void SimpleActor::EventSetPosition(Event *ev)
{
    m_csCurrentPosition = ev->GetConstString(1);
}

void SimpleActor::EventSetEmotion(Event *ev)
{
    switch (ev->GetConstString(1)) {
    case STRING_EMOTION_NONE:
        Anim_Emotion(EMOTION_NONE);
        break;
    case STRING_EMOTION_NEUTRAL:
        Anim_Emotion(EMOTION_NEUTRAL);
        break;
    case STRING_EMOTION_WORRY:
        Anim_Emotion(EMOTION_WORRY);
        break;
    case STRING_EMOTION_PANIC:
        Anim_Emotion(EMOTION_PANIC);
        break;
    case STRING_EMOTION_FEAR:
        Anim_Emotion(EMOTION_FEAR);
        break;
    case STRING_EMOTION_DISGUST:
        Anim_Emotion(EMOTION_DISGUST);
        break;
    case STRING_EMOTION_ANGER:
        Anim_Emotion(EMOTION_ANGER);
        break;
    case STRING_EMOTION_AIMING:
        Anim_Emotion(EMOTION_AIMING);
        break;
    case STRING_EMOTION_DETERMINED:
        Anim_Emotion(EMOTION_DETERMINED);
        break;
    case STRING_EMOTION_DEAD:
        Anim_Emotion(EMOTION_DEAD);
        break;
    case STRING_EMOTION_CURIOUS:
        Anim_Emotion(EMOTION_CURIOUS);
        break;
    default:
        assert(!"Unknown emotion mode specified in script.");
        break;
    }
}

int SimpleActor::GetEmotionAnim(void)
{
    const char *emotionanim = NULL;
    int         anim;

    if (m_eEmotionMode) {
        switch (m_eEmotionMode) {
        case EMOTION_NEUTRAL:
        case EMOTION_AIMING:
            emotionanim = "facial_idle_neutral";
            break;
        case EMOTION_WORRY:
            emotionanim = "facial_idle_worry";
            break;
        case EMOTION_PANIC:
            emotionanim = "facial_idle_panic";
            break;
        case EMOTION_FEAR:
            emotionanim = "facial_idle_fear";
            break;
        case EMOTION_DISGUST:
            emotionanim = "facial_idle_disgust";
            break;
        case EMOTION_ANGER:
            emotionanim = "facial_idle_anger";
            break;
        case EMOTION_DETERMINED:
        case EMOTION_CURIOUS:
            emotionanim = "facial_idle_determined";
            break;
        case EMOTION_DEAD:
            emotionanim = "facial_idle_dead";
            break;
        default:

            char assertStr[16317] = {0};
            strcpy(assertStr, "\"Unknown value for m_EmotionMode in SimpleActor::GetEmotionAnim\"\n\tMessage: ");
            Q_strcat(assertStr, sizeof(assertStr), DumpCallTrace(""));
            assert(!assertStr);
            return -1;
            break;
        }
    } else {
        if (m_csMood == STRING_NERVOUS) {
            emotionanim = "facial_idle_determined";
        } else if (m_csMood <= STRING_NERVOUS) {
            if (m_csMood != STRING_BORED) {
                assert(!"Unknown value for m_csMood");
                return -1;
            } else {
                emotionanim = "facial_idle_neutral";
            }

        } else if (m_csMood == STRING_CURIOUS) {
            emotionanim = "facial_idle_determined";
        } else if (m_csMood != STRING_ALERT) {
            assert(!"Unknown value for m_csMood");
            return -1;
        } else {
        }
    }

    if (emotionanim == NULL) {
        emotionanim = "facial_idle_anger";
        //assert(!"Unexpected behaviour in SimpleActor::GetEmotionAnim");
    }

    anim = gi.Anim_NumForName(edict->tiki, emotionanim);
    if (anim == -1) {
        Com_Printf(
            "^~^~^ SimpleActor::GetEmotionAnim: unknown animation '%s' in '%s'\n", emotionanim, edict->tiki->a->name
        );
    }
    return anim;
}

void SimpleActor::EventSetAnimFinal(Event *ev)
{
    ScriptError("animfinal is obsolete");
}

void SimpleActor::EventGetWeaponType(Event *ev)
{
    Weapon   *weapon;
    const_str csWeaponType;

    if (!m_pTurret) {
        weapon = GetActiveWeapon(WEAPON_MAIN);
    }

    if (!weapon) {
        csWeaponType = STRING_RIFLE;
    } else {
        int iWeaponClass = weapon->GetWeaponClass();

        switch (iWeaponClass) {
        case WEAPON_CLASS_PISTOL:
            csWeaponType = STRING_PISTOL;
            break;
        case WEAPON_CLASS_RIFLE:
            csWeaponType = STRING_RIFLE;
            break;
        case WEAPON_CLASS_SMG:
            csWeaponType = STRING_SMG;
            break;
        case WEAPON_CLASS_MG:
            csWeaponType = STRING_MG;
            break;
        case WEAPON_CLASS_GRENADE:
            csWeaponType = STRING_GRENADE;
            break;
        case WEAPON_CLASS_HEAVY:
            csWeaponType = STRING_HEAVY;
            break;
        case WEAPON_CLASS_CANNON:
            csWeaponType = STRING_CANNON;
            break;
        case WEAPON_CLASS_ITEM:
            csWeaponType = STRING_ITEM;
            break;
        case WEAPON_CLASS_ITEM2:
            csWeaponType = STRING_ITEM2;
            break;
        case WEAPON_CLASS_ITEM3:
            csWeaponType = STRING_ITEM3;
            break;
        case WEAPON_CLASS_ITEM4:
            csWeaponType = STRING_ITEM4;
            break;
        default:
            csWeaponType = STRING_EMPTY;
            break;
        }
    }

    ev->AddConstString(csWeaponType);
}

void SimpleActor::EventGetWeaponGroup(Event *ev)
{
    const_str csWeaponGroup;
    Weapon   *weapon = GetActiveWeapon(WEAPON_MAIN);
    if (!weapon) {
        csWeaponGroup = STRING_UNARMED;
    } else {
        csWeaponGroup = weapon->GetWeaponGroup();
        if (csWeaponGroup == STRING_EMPTY) {
            csWeaponGroup = STRING_UNARMED;
        }
    }
    ev->AddConstString(csWeaponGroup);
}

void SimpleActor::EventAIOn(Event *ev)
{
    m_bDoAI = true;
}

void SimpleActor::EventAIOff(Event *ev)
{
    m_bDoAI = false;
}

void SimpleActor::AnimFinished(int slot)
{
    assert(!DumpCallTrace(""));
}

void SimpleActor::EventGetPainHandler(Event *ev)
{
    ScriptVariable var;

    m_PainHandler.GetScriptValue(&var);

    ev->AddValue(var);
}

void SimpleActor::EventSetPainHandler(Event *ev)
{
    if (ev->IsFromScript()) {
        ScriptVariable var = ev->GetValue(1);

        m_PainHandler.SetScript(var);
    } else {
        str varString = ev->GetString(1);
        m_PainHandler.SetScript(varString);
    }
}

void SimpleActor::EventGetDeathHandler(Event *ev)
{
    ScriptVariable var;

    m_DeathHandler.GetScriptValue(&var);

    ev->AddValue(var);
}

void SimpleActor::EventSetDeathHandler(Event *ev)
{
    if (ev->IsFromScript()) {
        ScriptVariable var = ev->GetValue(1);

        m_DeathHandler.SetScript(var);
    } else {
        str varString = ev->GetString(1);
        m_DeathHandler.SetScript(varString);
    }
}

void SimpleActor::EventGetAttackHandler(Event *ev)
{
    ScriptVariable var;

    m_AttackHandler.GetScriptValue(&var);

    ev->AddValue(var);
}

void SimpleActor::EventSetAttackHandler(Event *ev)
{
    if (ev->IsFromScript()) {
        ScriptVariable var = ev->GetValue(1);

        m_AttackHandler.SetScript(var);
    } else {
        str varString = ev->GetString(1);
        m_AttackHandler.SetScript(varString);
    }
}

bool SimpleActor::UpdateSelectedAnimation(void)
{
    if (m_csNextAnimString == STRING_NULL) {
        if (m_bNextForceStart) {
            m_Anim      = m_NextAnimLabel;
            m_eAnimMode = m_eNextAnimMode;
            if (m_eNextAnimMode != ANIM_MODE_PATH_GOAL) {
                SetPathGoalEndAnim(STRING_EMPTY);
            }
            m_bStartPathGoalEndAnim = false;
            m_eNextAnimMode         = -1;
            return true;
        }

        if (m_pAnimThread) {
            if (m_eAnimMode == m_eNextAnimMode) {
                if (m_Anim == m_NextAnimLabel) {
                    m_bStartPathGoalEndAnim = false;
                    m_eNextAnimMode         = -1;
                    return false;
                }
            }
        }
        m_Anim      = m_NextAnimLabel;
        m_eAnimMode = m_eNextAnimMode;
        if (m_eNextAnimMode != ANIM_MODE_PATH_GOAL) {
            SetPathGoalEndAnim(STRING_EMPTY);
        }
        m_bStartPathGoalEndAnim = false;
        m_eNextAnimMode         = -1;
        return true;
    }

    if (m_bNextForceStart) {
        Com_Printf("UpdateSelectedAnimation\n");
        m_Anim.TrySetScript(m_csNextAnimString);
        m_eAnimMode = m_eNextAnimMode;
        if (m_eNextAnimMode != ANIM_MODE_PATH_GOAL) {
            SetPathGoalEndAnim(STRING_EMPTY);
        }
        m_bStartPathGoalEndAnim = false;
        m_eNextAnimMode         = -1;
        return true;
    }

    if (!m_pAnimThread || m_eAnimMode != m_eNextAnimMode) {
        m_Anim.TrySetScript(m_csNextAnimString);
        m_eAnimMode = m_eNextAnimMode;
        if (m_eNextAnimMode != ANIM_MODE_PATH_GOAL) {
            SetPathGoalEndAnim(STRING_EMPTY);
        }
        m_bStartPathGoalEndAnim = false;
        m_eNextAnimMode         = -1;
        return true;
    }

    if (m_fPathGoalTime <= level.time) {
        if (!m_Anim.IsFile(m_csNextAnimString)) {
            m_Anim.TrySetScript(m_csNextAnimString);
            m_eAnimMode = m_eNextAnimMode;
            if (m_eNextAnimMode != ANIM_MODE_PATH_GOAL) {
                SetPathGoalEndAnim(STRING_EMPTY);
            }
            m_bStartPathGoalEndAnim = false;
            m_eNextAnimMode         = -1;
            return true;
        }
    }

    m_eNextAnimMode = -1;
    if (m_bStartPathGoalEndAnim) {
        m_bStartPathGoalEndAnim = false;

        if (!m_Anim.IsFile(m_csPathGoalEndAnimScript)) {
            m_Anim.TrySetScript(m_csPathGoalEndAnimScript);
            return true;
        }
    }
    return false;
}

void SimpleActor::EventNoAnimLerp(Event *ev)
{
    edict->s.eFlags |= EF_NO_LERP;
    NoLerpThisFrame();
}

const char *SimpleActor::DumpCallTrace(const char *pszFmt, ...) const
{
    OVERLOADED_ERROR();
    return "overloaded version should always get called";
}

void SimpleActor::EventGetSniperHandler(Event *ev)
{
    ScriptVariable var;

    m_SniperHandler.GetScriptValue(&var);

    ev->AddValue(var);
}

void SimpleActor::EventSetSniperHandler(Event *ev)
{
    if (ev->IsFromScript()) {
        ScriptVariable var = ev->GetValue(1);

        m_SniperHandler.SetScript(var);
    } else {
        str varString = ev->GetString(1);
        m_SniperHandler.SetScript(varString);
    }
}

void SimpleActor::EventGetAnimMode(Event *ev) {}

void SimpleActor::EventSetAnimMode(Event *ev) {}