openmohaa/code/fgame/bg_pmove.cpp

/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
Copyright (C) 2024 the OpenMoHAA team

This file is part of Quake III Arena source code.

Quake III Arena 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.

Quake III Arena 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 Quake III Arena source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/
//
// bg_pmove.c -- both games player movement code
// takes a playerstate and a usercmd as input and returns a modifed playerstate

#include "../qcommon/q_shared.h"
#include "bg_public.h"
#include "bg_local.h"

pmove_t *pm;
pml_t    pml;

// movement parameters
float pm_stopspeed = 50.0f;
float pm_duckScale = 0.25f;
float pm_swimScale = 1.0f;
float pm_wadeScale = 0.70f;

float pm_accelerate      = 8.0f;
float pm_airaccelerate   = 1.0f;
float pm_wateraccelerate = 8.0f;

float pm_friction         = 6.0f;
float pm_waterfriction    = 2.0f;
float pm_slipperyfriction = 0.25f;
float pm_strafespeed      = 0.85f;
float pm_backspeed        = 0.80f;
float pm_flightfriction   = 3.0f;
float PM_NOCLIPfriction   = 5.0f;

const vec3_t MINS = {-15, -15, 0};
const vec3_t MAXS = {15, 15, 94};

int c_pmove = 0;

/*
===============
PM_AddEvent

===============
*/
void PM_AddEvent(int newEvent) {}

/*
===============
PM_AddTouchEnt
===============
*/
void PM_AddTouchEnt(int entityNum)
{
    int i;

    if (entityNum == ENTITYNUM_WORLD) {
        return;
    }

    if (pm->numtouch == MAXTOUCH) {
        return;
    }

    // see if it is already added
    for (i = 0; i < pm->numtouch; i++) {
        if (pm->touchents[i] == entityNum) {
            return;
        }
    }

    // add it
    pm->touchents[pm->numtouch] = entityNum;
    pm->numtouch++;
}

/*
===================
PM_StartTorsoAnim
===================
*/
static void PM_StartTorsoAnim(int anim) {}

static void PM_StartLegsAnim(int anim) {}

static void PM_ContinueLegsAnim(int anim) {}

static void PM_ContinueTorsoAnim(int anim) {}

static void PM_ForceLegsAnim(int anim) {}

/*
==================
PM_ClipVelocity

Slide off of the impacting surface
==================
*/
void PM_ClipVelocity(vec3_t in, vec3_t normal, vec3_t out, float overbounce)
{
    float backoff;
    float dir_z;
    float normal2[3];

    if (normal[2] >= pm_wadeScale) {
        if (in[0] == 0.0f && in[1] == 0.0f) {
            VectorClear(out);
            return;
        }

        normal2[0] = in[0] * DotProduct2D(in, normal);
        normal2[1] = in[1] * DotProduct2D(in, normal);
        normal2[2] = normal[2] * DotProduct2D(in, in);

        VectorNormalize(normal2);

        dir_z = -normal2[2];

        out[0] = in[0];
        out[1] = in[1];
        out[2] = DotProduct2D(in, normal2) / dir_z;
    } else {
        backoff = DotProduct(in, normal);

        if (backoff < 0) {
            backoff *= overbounce;
        } else {
            backoff /= overbounce;
        }

        out[0] = in[0] - normal[0] * backoff;
        out[1] = in[1] - normal[1] * backoff;
        out[2] = in[2] - normal[2] * backoff;
    }
}

/*
==================
PM_Friction

Handles both ground friction and water friction
==================
*/
static void PM_Friction(void)
{
    vec3_t vec;
    float *vel;
    float  speed, newspeed, control;
    float  drop;

    vel = pm->ps->velocity;

    VectorCopy(vel, vec);
    if (pml.walking) {
        // ignore slope movement
        vec[2] = 0;
    }

    speed = VectorLength(vec);
    if (speed < 1) {
        // allow sinking underwater
        vel[0] = 0;
        vel[1] = 0;

        return;
    }

    drop = 0;

    if (pml.walking) {
        control = (speed < pm_stopspeed) ? pm_stopspeed : speed;

        // if getting knocked back, no friction
        if (pml.groundTrace.surfaceFlags & SURF_SLICK) {
            drop += control * pm_slipperyfriction * pml.frametime;
        } else {
            drop += control * pm_friction * pml.frametime;
        }
    }

    // apply water friction even if just wading
    if (pm->waterlevel) {
        if (pm->watertype & CONTENTS_SLIME) {
            drop += speed * pm_waterfriction * 5 * pm->waterlevel * pml.frametime;
        } else {
            drop += speed * pm_waterfriction * pm->waterlevel * pml.frametime;
        }
    }

    // scale the velocity
    newspeed = speed - drop;
    if (newspeed < 0) {
        newspeed = 0;
    }

    newspeed /= speed;

    vel[0] = vel[0] * newspeed;
    vel[1] = vel[1] * newspeed;
    vel[2] = vel[2] * newspeed;
}

/*
==============
PM_Accelerate

Handles user intended acceleration
==============
*/
static void PM_Accelerate(vec3_t wishdir, float wishspeed, float accel)
{
    vec3_t wishVelocity;
    vec3_t pushDir;
    float  pushLen;
    float  canPush;

    VectorScale(wishdir, wishspeed, wishVelocity);
    VectorSubtract(wishVelocity, pm->ps->velocity, pushDir);
    pushLen = VectorNormalize(pushDir);

    canPush = accel * pml.frametime * wishspeed;
    if (canPush > pushLen) {
        canPush = pushLen;
    }

    VectorMA(pm->ps->velocity, canPush, pushDir, pm->ps->velocity);
}

/*
============
PM_CmdScale

Returns the scale factor to apply to cmd movements
This allows the clients to use axial -127 to 127 values for all directions
without getting a sqrt(2) distortion in speed.
============
*/
static float PM_CmdScale(usercmd_t *cmd)
{
    int   max;
    float total;
    float scale;
    float fmove, smove;

    PM_GetMove(&fmove, &smove);

    max = fabs(fmove);
    if (fabs(smove) > max) {
        max = fabs(smove);
    }
    if (fabs(cmd->upmove) > max) {
        max = fabs(cmd->upmove);
    }
    if (!max) {
        return 0;
    }

    total = sqrt((float)(fmove * fmove + smove * smove + cmd->upmove * cmd->upmove));
    scale = (float)pm->ps->speed * max / (127.0 * total);

    return scale;
}

//============================================================================

/*
=============
PM_CheckTerminalVelocity
=============
*/
#define TERMINAL_VELOCITY 1200

void PM_CheckTerminalVelocity(void)
{
    float oldspeed;
    float speed;

    //
    // how fast were we falling
    //
    oldspeed = -pml.previous_velocity[2];

    //
    // how fast are we falling
    //
    speed = -pm->ps->velocity[2];

    if (speed <= 0) {
        return;
    }

    if ((oldspeed <= TERMINAL_VELOCITY) && (speed > TERMINAL_VELOCITY)) {
        pm->pmoveEvent = EV_TERMINAL_VELOCITY;
    }
}

/*
{
	int			i;
	vec3_t		wishvel;
	float		fmove, smove;
	vec3_t		wishdir;
	float		wishspeed;
	float		scale;
	usercmd_t	cmd;

	PM_Friction();

	fmove = pm->cmd.forwardmove;
	smove = pm->cmd.rightmove;

	cmd = pm->cmd;
	scale = PM_CmdScale( &cmd );

	// set the movementDir so clients can rotate the legs for strafing
	PM_SetMovementDir();

	// project moves down to flat plane
	pml.forward[ 2 ] = 0;
	pml.right[ 2 ] = 0;
	VectorNormalize( pml.forward );
	VectorNormalize( pml.right );

	for( i = 0; i < 2; i++ ) {
		wishvel[ i ] = pml.forward[ i ] * fmove + pml.right[ i ] * smove;
	}
	wishvel[ 2 ] = 0;

	VectorCopy( wishvel, wishdir );
	wishspeed = VectorNormalize( wishdir );
	wishspeed *= scale;

	// not on ground, so little effect on velocity
	PM_Accelerate( wishdir, wishspeed, pm_airaccelerate );

	// we may have a ground plane that is very steep, even
	// though we don't have a groundentity
	// slide along the steep plane
	if( pml.groundPlane ) {
		PM_ClipVelocity( pm->ps->velocity, pml.groundTrace.plane.normal,
			pm->ps->velocity, OVERCLIP );
	}

	PM_StepSlideMove( qtrue );
}
*/

/*
===================
PM_GetMove

===================
*/
void PM_GetMove(float *pfForward, float *pfRight)
{
    *pfForward = pm->cmd.forwardmove;
    if (*pfForward < 0) {
        *pfForward *= pm_backspeed;
    }
    *pfRight = pm->cmd.rightmove * pm_strafespeed;
}

/*
===================
PM_AirMove

===================
*/
static void PM_AirMove(void)
{
    vec3_t    wishvel;
    float     fmove;
    float     smove;
    vec3_t    wishdir;
    float     wishspeed;
    float     scale;
    usercmd_t cmd;

    PM_GetMove(&fmove, &smove);

    pm->ps->pm_time = 0;

    cmd   = pm->cmd;
    scale = PM_CmdScale(&cmd);

    wishvel[0] = pml.flat_forward[0] * fmove - pml.flat_left[0] * smove;
    wishvel[1] = pml.flat_forward[1] * fmove - pml.flat_left[1] * smove;
    wishvel[2] = 0;

    VectorCopy(wishvel, wishdir);
    wishspeed = VectorNormalize(wishdir);
    wishspeed *= scale;

    // not on ground, so little effect on velocity
    PM_Accelerate(wishdir, wishspeed, pm_airaccelerate);

    // we may have a ground plane that is very steep, even
    // though we don't have a groundentity
    // slide along the steep plane
    if (pml.groundPlane) {
        PM_ClipVelocity(pm->ps->velocity, pml.groundTrace.plane.normal, pm->ps->velocity, OVERCLIP);
    }

    PM_StepSlideMove(qtrue);

    PM_CheckTerminalVelocity();
}

static vec3_t min3x3             = {-8, 0, 0};
static vec3_t max3x3             = {4, 4, 8};
static vec3_t base_rightfoot_pos = {-5.25301f, -3.10885f, 0};
static vec3_t base_leftfoot_pos  = {-0.123711f, 10.4893f, 0};

qboolean PM_FeetOnGround(vec3_t pos)
{
    vec3_t  start;
    vec3_t  end;
    trace_t trace;

    VectorCopy(pos, start);
    VectorCopy(pos, end);
    end[2] -= 16.01f;

    pm->trace(&trace, start, min3x3, max3x3, end, pm->ps->clientNum, pm->tracemask, true, false);

    return trace.fraction != 1.0f;
}

qboolean PM_FindBestFallPos(vec3_t pos, vec3_t bestdir)
{
    trace_t  trace;
    vec3_t   ang;
    vec3_t   dir;
    vec3_t   start;
    vec3_t   end;
    vec3_t   move;
    int      i;
    qboolean set;
    float    radius;

    VectorClear(bestdir);

    set = qfalse;

    radius = pm->maxs[0] - pm->mins[0] + 1.0f;

    VectorCopy(pos, start);
    start[2] -= 16.1f;

    VectorSet(ang, 0, pm->ps->viewangles[1], 0);
    for (i = 0; i < 16; i++, ang[1] += 22.5f) {
        AngleVectorsLeft(ang, dir, NULL, NULL);
        VectorMA(pos, radius, dir, move);

        pm->trace(&trace, pos, pm->mins, pm->maxs, move, pm->ps->clientNum, pm->tracemask, qtrue, qfalse);

        VectorCopy(trace.endpos, end);
        end[2] = start[2];

        pm->trace(&trace, trace.endpos, pm->mins, pm->maxs, end, pm->ps->clientNum, pm->tracemask, qtrue, qfalse);
        if (trace.fraction == 1.0f) {
            VectorCopy(trace.endpos, end);
            pm->trace(&trace, end, pm->mins, pm->maxs, start, pm->ps->clientNum, pm->tracemask, qtrue, qfalse);

            if (trace.fraction < 1.0f) {
                VectorAdd(bestdir, trace.plane.normal, bestdir);
                set = qtrue;
            }
        }
    }

    if (!set || !VectorNormalize(bestdir)) {
        return qfalse;
    }

    return qtrue;
}

void PM_CheckFeet(vec3_t vWishdir)
{
    vec3_t  temp;
    trace_t trace;

    if (pm->stepped) {
        pm->ps->feetfalling = 0;
        return;
    }

    if (!pm->ps->walking) {
        return;
    }

    VectorMA(pm->ps->origin, 0.2f, pm->ps->velocity, temp);
    temp[2] = pm->ps->origin[2] + 2;
    if (PM_FeetOnGround(pm->ps->origin) || PM_FeetOnGround(temp)) {
        pm->ps->feetfalling = 0;
        return;
    }

    if (pm->ps->feetfalling > 0) {
        pm->ps->feetfalling--;
    }

    if (!pm->ps->feetfalling) {
        if (!PM_FindBestFallPos(pm->ps->origin, pm->ps->falldir)) {
            return;
        }

        pm->ps->feetfalling = 5;
    }

    VectorMA(pm->ps->origin, 15.0f * pml.frametime, pm->ps->falldir, temp);

    pm->trace(&trace, pm->ps->origin, pm->mins, pm->maxs, temp, pm->ps->clientNum, pm->tracemask, qtrue, qfalse);
    if (trace.fraction == 0) {
        pm->ps->feetfalling = 0;
        return;
    }

    if ((vWishdir[0] == 0.0f && vWishdir[1] == 0.0f) || DotProduct(vWishdir, pm->ps->falldir) > 0.0f) {
        pm->ps->walking = qfalse;
        VectorCopy(trace.endpos, pm->ps->origin);
    }
}

/*
===================
PM_WalkMove

===================
*/
static void PM_WalkMove(void)
{
    int       i;
    vec3_t    wishvel;
    float     fmove, smove;
    vec3_t    wishdir;
    float     wishspeed;
    float     scale;
    usercmd_t cmd;
    float     accelerate;

    PM_Friction();

    PM_GetMove(&fmove, &smove);

    cmd   = pm->cmd;
    scale = PM_CmdScale(&cmd);

    if ((pm->cmd.buttons & BUTTON_RUN) && fmove && !smove) {
        pm->ps->pm_time += pml.msec;
    } else {
        pm->ps->pm_time = 0;
    }

    // project the forward and right directions onto the ground plane
    PM_ClipVelocity(pml.flat_forward, pml.groundTrace.plane.normal, pml.flat_forward, OVERCLIP);
    PM_ClipVelocity(pml.flat_left, pml.groundTrace.plane.normal, pml.flat_left, OVERCLIP);
    //
    VectorNormalize(pml.flat_forward);
    VectorNormalize(pml.flat_left);

    for (i = 0; i < 3; i++) {
        wishvel[i] = pml.flat_forward[i] * fmove - pml.flat_left[i] * smove;
    }

    VectorCopy(wishvel, wishdir);
    wishspeed = VectorNormalize(wishdir);
    wishspeed *= scale;

    // clamp the speed lower if wading or walking on the bottom
    if (pm->waterlevel) {
        float waterScale;

        if (pm->waterlevel == 1.0f) {
            waterScale = 0.80f;
        } else {
            waterScale = 0.5f;
        }

        if (wishspeed > pm->ps->speed * waterScale) {
            wishspeed = pm->ps->speed * waterScale;
        }
    }

    if (pml.groundTrace.surfaceFlags & SURF_SLICK) {
        accelerate = pm_airaccelerate;
    } else {
        accelerate = pm_accelerate;
    }

    PM_Accelerate(wishdir, wishspeed, accelerate);

    if (pml.groundTrace.surfaceFlags & SURF_SLICK) {
        pm->ps->velocity[2] -= pm->ps->gravity * pml.frametime;
    }

    // slide along the ground plane
    PM_ClipVelocity(pm->ps->velocity, pml.groundTrace.plane.normal, pm->ps->velocity, OVERCLIP);

    // don't do anything if standing still
    if (pm->ps->velocity[0] || pm->ps->velocity[1]) {
        PM_StepSlideMove(qtrue);
    }

    PM_CheckFeet(wishdir);
}

/*
==============
PM_DeadMove
==============
*/
static void PM_DeadMove(void)
{
    float forward;

    if (!pml.walking) {
        return;
    }

    // extra friction

    forward = VectorLength(pm->ps->velocity);
    forward -= 20;
    if (forward <= 0) {
        VectorClear(pm->ps->velocity);
    } else {
        VectorNormalize(pm->ps->velocity);
        VectorScale(pm->ps->velocity, forward, pm->ps->velocity);
    }
}

/*
===============
PM_NoclipMove
===============
*/
static void PM_NoclipMove(void)
{
    float  speed;
    float  drop;
    float  friction;
    float  control;
    float  newspeed;
    int    i;
    vec3_t wishvel;
    float  fmove;
    float  smove;
    vec3_t wishdir;
    float  wishspeed;
    float  scale;

    pm->ps->viewheight      = DEFAULT_VIEWHEIGHT;
    pm->ps->groundEntityNum = ENTITYNUM_NONE;

    // friction

    speed = VectorLength(pm->ps->velocity);
    if (speed < 1) {
        VectorCopy(vec3_origin, pm->ps->velocity);
    } else {
        drop = 0;

        // extra friction
        friction = pm_friction * 1.5;

        control = speed < pm_stopspeed ? pm_stopspeed : speed;
        drop += control * friction * pml.frametime;

        // scale the velocity
        newspeed = speed - drop;
        if (newspeed < 0) {
            newspeed = 0;
        }
        newspeed /= speed;

        VectorScale(pm->ps->velocity, newspeed, pm->ps->velocity);
    }

    // accelerate
    // allow the player to move twice as fast in noclip
    scale = PM_CmdScale(&pm->cmd) * 2;

    PM_GetMove(&fmove, &smove);

    pm->ps->pm_time = 0;

    for (i = 0; i < 3; i++) {
        wishvel[i] = pml.flat_forward[i] * fmove - pml.flat_left[i] * smove;
    }

    wishvel[2] += pm->cmd.upmove;

    VectorCopy(wishvel, wishdir);
    wishspeed = VectorNormalize(wishdir);
    wishspeed *= scale;

    PM_Accelerate(wishdir, wishspeed, pm_accelerate);

    // move
    VectorMA(pm->ps->origin, pml.frametime, pm->ps->velocity, pm->ps->origin);
}

//============================================================================

/*
=================
PM_CrashLand

Check for hard landings that generate sound events
=================
*/
static void PM_CrashLand(void)
{
    float delta;
    float dist;
    float vel;
    float acc;
    float t;
    float a, b, c, den;

    // calculate the exact velocity on landing
    dist = pm->ps->origin[2] - pml.previous_origin[2];
    vel  = pml.previous_velocity[2];
    acc  = -pm->ps->gravity;

    a = acc / 2;
    b = vel;
    c = -dist;

    den = b * b - 4 * a * c;
    if (den < 0) {
        return;
    }

    //t = ( -b - sqrt( den ) ) / ( 2 * a );
    t = sqrt(den) + vel;

    //delta = vel + t * acc;
    delta = vel - t;
    delta = delta * delta * 0.0001;

    // reduce falling damage if there is standing water
    if (pm->waterlevel == 2) {
        delta *= 0.25f;
    }

    if (pm->waterlevel == 1) {
        delta *= 0.5f;
    }

    if (delta < 1) {
        return;
    }

    // SURF_NODAMAGE is used for bounce pads where you don't ever
    // want to take damage or play a crunch sound
    if (!(pml.groundTrace.surfaceFlags & SURF_NODAMAGE)) {
        if (delta > 100) {
            pm->pmoveEvent = EV_FALL_FATAL;
        } else if (delta > 80) {
            pm->pmoveEvent = EV_FALL_FAR;
        } else if (delta > 40) {
            pm->pmoveEvent = EV_FALL_MEDIUM;
        } else if (delta > 20) {
            pm->pmoveEvent = EV_FALL_SHORT;
        }
    }
}

/*
=============
PM_CheckStuck
=============
*/
/*
void PM_CheckStuck(void) {
	trace_t trace;

	pm->trace (&trace, pm->ps->origin, pm->mins, pm->maxs, pm->ps->origin, pm->ps->clientNum, pm->tracemask);
	if (trace.allsolid) {
		//int shit = qtrue;
	}
}
*/

/*
=============
PM_CorrectAllSolid
=============
*/
static int PM_CorrectAllSolid(trace_t *trace)
{
    int    i, j, k;
    vec3_t point;

    if (pm->debugLevel) {
        Com_Printf("%i:allsolid\n", c_pmove);
    }

    // jitter around
    for (i = -1; i <= 1; i++) {
        for (j = -1; j <= 1; j++) {
            for (k = -1; k <= 1; k++) {
                VectorCopy(pm->ps->origin, point);
                point[0] += (float)i;
                point[1] += (float)j;
                point[2] += (float)k;
                pm->trace(trace, point, pm->mins, pm->maxs, point, pm->ps->clientNum, pm->tracemask, qtrue, false);
                if (!trace->allsolid && !trace->startsolid) {
                    point[0] = pm->ps->origin[0];
                    point[1] = pm->ps->origin[1];
                    point[2] = pm->ps->origin[2] - 0.25;

                    pm->trace(
                        trace, pm->ps->origin, pm->mins, pm->maxs, point, pm->ps->clientNum, pm->tracemask, qtrue, false
                    );
                    pml.groundTrace     = *trace;
                    pm->ps->groundTrace = *trace;
                    return qtrue;
                }
            }
        }
    }

    //pm->ps->groundEntityNum = ENTITYNUM_NONE;
    //pml.groundPlane = qfalse;
    //pml.walking = qfalse;

    return qfalse;
}

/*
=============
PM_GroundTrace
=============
*/
static void PM_GroundTrace(void)
{
    vec3_t  point;
    trace_t trace;

    point[0] = pm->ps->origin[0];
    point[1] = pm->ps->origin[1];
    point[2] = pm->ps->origin[2] - 0.25f;

    pm->trace(&trace, pm->ps->origin, pm->mins, pm->maxs, point, pm->ps->clientNum, pm->tracemask, qtrue, qfalse);

    pml.groundTrace     = trace;
    pm->ps->groundTrace = trace;

    // do something corrective if the trace starts in a solid...
    if (trace.allsolid || trace.startsolid) {
        if (!PM_CorrectAllSolid(&trace)) {
            trace.fraction = 1.0f;
        }
    }

    // if the trace didn't hit anything, we are in free fall
    if (trace.fraction == 1.0) {
        pm->ps->groundEntityNum = ENTITYNUM_NONE;
        pml.groundPlane         = qfalse;
        pml.walking             = qfalse;

        pm->ps->walking     = pml.walking;
        pm->ps->groundPlane = pml.groundPlane;
        return;
    }

    // check if getting thrown off the ground
    if (pm->ps->velocity[2] > 0.0f && DotProduct(pm->ps->velocity, trace.plane.normal) > 150.0f) {
        if (pm->debugLevel) {
            Com_Printf("%i:kickoff\n", c_pmove);
        }

        pm->ps->groundEntityNum = ENTITYNUM_NONE;
        pml.groundPlane         = qfalse;
        pml.walking             = qfalse;

        pm->ps->walking     = pml.walking;
        pm->ps->groundPlane = pml.groundPlane;
        return;
    }

    // slopes that are too steep will not be considered onground
    if (trace.plane.normal[2] < MIN_WALK_NORMAL) {
        vec3_t oldvel;
        float  d;

        if (pm->debugLevel) {
            Com_Printf("%i:steep\n", c_pmove);
        }

        VectorCopy(pm->ps->velocity, oldvel);
        VectorSet(pm->ps->velocity, 0, 0, -1.0f / pml.frametime);
        PM_SlideMove(qfalse);

        d = VectorLength(pm->ps->velocity);
        VectorCopy(oldvel, pm->ps->velocity);

        if (d > (0.1f / pml.frametime)) {
            pm->ps->groundEntityNum = ENTITYNUM_NONE;
            pml.groundPlane         = qtrue;
            pml.walking             = qfalse;

            pm->ps->walking     = pml.walking;
            pm->ps->groundPlane = pml.groundPlane;
            return;
        }
    }

    pml.groundPlane = qtrue;
    pml.walking     = qtrue;

    if (pm->ps->groundEntityNum == ENTITYNUM_NONE) {
        // just hit the ground
        if (pm->debugLevel) {
            Com_Printf("%i:Land\n", c_pmove);
        }

        PM_CrashLand();
    }

    pm->ps->groundEntityNum = trace.entityNum;

    PM_AddTouchEnt(trace.entityNum);

    pm->ps->walking     = pml.walking;
    pm->ps->groundPlane = pml.groundPlane;
}

/*
=============
PM_SetWaterLevel	FIXME: avoid this twice?  certainly if not moving
=============
*/
static void PM_SetWaterLevel(void)
{
    vec3_t point;
    int    cont;
    int    sample1;
    int    sample2;

    //
    // get waterlevel, accounting for ducking
    //
    pm->waterlevel = 0;
    pm->watertype  = 0;

    point[0] = pm->ps->origin[0];
    point[1] = pm->ps->origin[1];
    point[2] = pm->ps->origin[2] + MINS_Z + 1;
    cont     = pm->pointcontents(point, pm->ps->clientNum);

    if (cont & MASK_WATER) {
        sample2 = pm->ps->viewheight - MINS_Z;
        sample1 = sample2 / 2;

        pm->watertype  = cont;
        pm->waterlevel = 1;
        point[2]       = pm->ps->origin[2] + MINS_Z + sample1;
        cont           = pm->pointcontents(point, pm->ps->clientNum);
        if (cont & MASK_WATER) {
            pm->waterlevel = 2;
            point[2]       = pm->ps->origin[2] + MINS_Z + sample2;
            cont           = pm->pointcontents(point, pm->ps->clientNum);
            if (cont & MASK_WATER) {
                pm->waterlevel = 3;
            }
        }
    }
}

/*
==============
PM_CheckDuck

Sets mins, maxs, and pm->ps->viewheight
==============
*/
static void PM_CheckDuck(void)
{
    pm->mins[0] = -15.0f;
    pm->mins[1] = -15.0f;

    pm->maxs[0] = 15.0f;
    pm->maxs[1] = 15.0f;

    pm->mins[2] = MINS_Z;

    if (pm->ps->pm_type == PM_DEAD) {
        pm->maxs[2]        = DEAD_MINS_Z;
        pm->ps->viewheight = CROUCH_VIEWHEIGHT;
        return;
    }

    if (pm->protocol >= protocol_e::PROTOCOL_MOHTA_MIN) {
        //
        // Prone was removed in 2.0
        //
        if (pm->ps->pm_flags & PMF_DUCKED) {
            pm->maxs[2]        = 54.f;
            pm->ps->viewheight = CROUCH_VIEWHEIGHT;
        } else if (pm->ps->pm_flags & PMF_VIEW_JUMP_START) {
            pm->maxs[2]        = 94.0f;
            pm->ps->viewheight = JUMP_START_VIEWHEIGHT;
        } else {
            pm->maxs[2]        = 94.0f;
            pm->ps->viewheight = DEFAULT_VIEWHEIGHT;
        }
    } else {
        if ((pm->ps->pm_flags & (PMF_DUCKED | PMF_VIEW_PRONE)) == (PMF_DUCKED | PMF_VIEW_PRONE)) {
            pm->maxs[2]        = 54.0f;
            pm->ps->viewheight = CROUCH_VIEWHEIGHT;
        } else if (pm->ps->pm_flags & PMF_DUCKED) {
            pm->maxs[2]        = 60.0f;
            pm->ps->viewheight = CROUCH_VIEWHEIGHT;
        } else if (pm->ps->pm_flags & PMF_VIEW_PRONE) {
            pm->maxs[2]        = 20.0f;
            pm->ps->viewheight = PRONE_VIEWHEIGHT;
        } else if (pm->ps->pm_flags & PMF_VIEW_DUCK_RUN) {
            pm->maxs[2]        = 94.0f;
            pm->mins[2]        = 54.0f;
            pm->ps->viewheight = DEFAULT_VIEWHEIGHT;
        } else if (pm->ps->pm_flags & PMF_VIEW_JUMP_START) {
            pm->maxs[2]        = 94.0f;
            pm->ps->viewheight = JUMP_START_VIEWHEIGHT;
        } else {
            pm->maxs[2]        = 94.0f;
            pm->ps->viewheight = DEFAULT_VIEWHEIGHT;
        }
    }
}

//===================================================================

/*
===============
PM_Footsteps
===============
*/
static void PM_Footsteps(void)
{
    float    bobmove;
    int      old;
    qboolean footstep;

    //
    // calculate speed and cycle to be used for
    // all cyclic walking effects
    //
    pm->xyspeed = sqrt(pm->ps->velocity[0] * pm->ps->velocity[0] + pm->ps->velocity[1] * pm->ps->velocity[1]);

    if (pm->ps->groundEntityNum == ENTITYNUM_NONE) {
        //		if ( pm->ps->powerups[PW_INVULNERABILITY] ) {
        //			PM_ContinueLegsAnim( LEGS_IDLECR );
        //		}
        // airborne leaves position in cycle intact, but doesn't advance
        if (pm->waterlevel > 1) {
            //			PM_ContinueLegsAnim( LEGS_SWIM );
        }
        return;
    }

    // if not trying to move
    if (!pm->cmd.forwardmove && !pm->cmd.rightmove) {
        if (pm->xyspeed < 5) {
            pm->ps->bobCycle = 0; // start at beginning of cycle again
            if (pm->ps->pm_flags & PMF_DUCKED) {
                //				PM_ContinueLegsAnim( LEGS_IDLECR );
            } else {
                //				PM_ContinueLegsAnim( LEGS_IDLE );
            }
        }
        return;
    }

    footstep = qfalse;

    if (!(pm->cmd.buttons & BUTTON_RUN)) {
        bobmove = 0.4f; // faster speeds bob faster

        footstep = qtrue;
    } else {
        bobmove = 0.3f; // walking bobs slow
    }

    // check for footstep / splash sounds
    old              = pm->ps->bobCycle;
    pm->ps->bobCycle = (int)(old + bobmove * pml.msec) & 255;

    // if we just crossed a cycle boundary, play an apropriate footstep event
    if (((old + 64) ^ (pm->ps->bobCycle + 64)) & 128) {
        if (pm->waterlevel == 0) {
            // on ground will only play sounds if running
            if (footstep && !pm->noFootsteps) {
                //				PM_AddEvent( PM_FootstepForSurface() );
            }
        } else if (pm->waterlevel == 1) {
            // splashing
            //			PM_AddEvent( EV_FOOTSPLASH );
        } else if (pm->waterlevel == 2) {
            // wading / swimming at surface
            //			PM_AddEvent( EV_SWIM );
        } else if (pm->waterlevel == 3) {
            // no sound when completely underwater
        }
    }
}

/*
==============
PM_WaterEvents

Generate sound events for entering and leaving water
==============
*/
static void PM_WaterEvents(void)
{
    // FIXME?
    //
    // if just entered a water volume, play a sound
    //
    if (!pml.previous_waterlevel && pm->waterlevel) {
        pm->pmoveEvent = EV_WATER_TOUCH;
    }

    //
    // if just completely exited a water volume, play a sound
    //
    if (pml.previous_waterlevel && !pm->waterlevel) {
        pm->pmoveEvent = EV_WATER_LEAVE;
    }

    //
    // check for head just going under water
    //
    if ((pml.previous_waterlevel != 3) && (pm->waterlevel == 3)) {
        pm->pmoveEvent = EV_WATER_UNDER;
    }

    //
    // check for head just coming out of water
    //
    if ((pml.previous_waterlevel == 3) && (pm->waterlevel != 3)) {
        pm->pmoveEvent = EV_WATER_CLEAR;
    }
}

/*
===============
PM_BeginWeaponChange
===============
*/
static void PM_BeginWeaponChange(int weapon) {}

/*
===============
PM_FinishWeaponChange
===============
*/
static void PM_FinishWeaponChange(void) {}

/*
==============
PM_TorsoAnimation

==============
*/
static void PM_TorsoAnimation(void)
{
    //if ( pm->ps->weaponstate == WEAPON_READY ) {
    //	if ( pm->ps->weapon == WP_GAUNTLET ) {
    //		PM_ContinueTorsoAnim( TORSO_STAND2 );
    //	} else {
    //		PM_ContinueTorsoAnim( TORSO_STAND );
    //	}
    //	return;
    //}
}

/*
==============
PM_Weapon

Generates weapon events and modifes the weapon counter
==============
*/
static void PM_Weapon(void) {}

/*
================
PM_Animate
================
*/

static void PM_Animate(void) {}

/*
================
PM_DropTimers
================
*/
static void PM_DropTimers(void)
{
    pm->ps->pm_flags &= ~PMF_RESPAWNED;
}

/*
================
PM_UpdateViewAngles

This can be used as another entry point when only the viewangles
are being updated isntead of a full move
================
*/
void PM_UpdateViewAngles(playerState_t *ps, const usercmd_t *cmd)
{
    short temp;
    int   i;

    if (ps->pm_flags & PMF_FROZEN) {
        // no view changes at all
        return;
    }

    if (ps->stats[STAT_HEALTH] <= 0) {
        // no view changes at all
        return;
    }

    // circularly clamp the angles with deltas
    for (i = 0; i < 3; i++) {
        temp = cmd->angles[i] + ps->delta_angles[i];
        if (i == PITCH) {
            // don't let the player look up or down more than 90 degrees
            if (temp > 16000) {
                ps->delta_angles[i] = 16000 - cmd->angles[i];
                temp                = 16000;
            } else if (temp < -16000) {
                ps->delta_angles[i] = -16000 - cmd->angles[i];
                temp                = -16000;
            }
        }

        ps->viewangles[i] = SHORT2ANGLE(temp);
    }
}

/*
================
PmoveSingle

================
*/

void PmoveSingle(pmove_t *pmove)
{
    vec3_t   tempVec;
    qboolean walking;

    pm = pmove;

    // this counter lets us debug movement problems with a journal
    // by setting a conditional breakpoint fot the previous frame
    c_pmove++;

    // clear results
    pm->numtouch   = 0;
    pm->watertype  = 0;
    pm->waterlevel = 0;

    if (pm->ps->stats[STAT_HEALTH] <= 0) {
        pm->tracemask &= ~(CONTENTS_BODY | CONTENTS_NOBOTCLIP); // corpses can fly through bodies
    }

    if (pmove->cmd.buttons & BUTTON_TALK) {
        pmove->cmd.forwardmove = 0;
        pmove->cmd.rightmove   = 0;
        pmove->cmd.upmove      = 0;
        pmove->cmd.buttons     = BUTTON_TALK;
        pm->ps->fLeanAngle     = 0.0f;
    }

    if (pm->ps->pm_type == PM_CLIMBWALL) {
        pm->ps->fLeanAngle = 0.0f;
        pm->cmd.buttons &= ~(BUTTON_LEAN_LEFT | BUTTON_LEAN_RIGHT);
    }

    // clear all pmove local vars
    memset(&pml, 0, sizeof(pml));

    // determine the time
    pml.msec = pmove->cmd.serverTime - pm->ps->commandTime;
    if (pml.msec < 1) {
        pml.msec = 1;
    } else if (pml.msec > 200) {
        pml.msec = 200;
    }

    pm->ps->commandTime = pmove->cmd.serverTime;

    // save old org in case we get stuck
    VectorCopy(pm->ps->origin, pml.previous_origin);

    // save old velocity for crashlanding
    VectorCopy(pm->ps->velocity, pml.previous_velocity);

    pml.frametime = pml.msec * 0.001;

    if ((pm->cmd.buttons & (BUTTON_LEAN_LEFT | BUTTON_LEAN_RIGHT)
         && (pm->cmd.buttons & (BUTTON_LEAN_LEFT | BUTTON_LEAN_RIGHT)) != (BUTTON_LEAN_LEFT | BUTTON_LEAN_RIGHT))
        && (!pm->cmd.forwardmove || pm->alwaysAllowLean) && (!pm->cmd.rightmove || pm->alwaysAllowLean)
        && (!pm->cmd.upmove || pm->alwaysAllowLean)) {
        if (pm->cmd.buttons & BUTTON_LEAN_LEFT) {
            if (pm->ps->fLeanAngle <= -pm->leanMax) {
                pm->ps->fLeanAngle = -pm->leanMax;
            } else {
                float fAngle     = pml.frametime * (-pm->leanMax - pm->ps->fLeanAngle) * pm->leanAdd;
                float fLeanAngle = pml.frametime * -pm->leanSpeed;

                if (fAngle <= fLeanAngle) {
                    fLeanAngle = fAngle;
                }

                pm->ps->fLeanAngle += fLeanAngle;
            }
        } else {
            if (pm->ps->fLeanAngle >= pm->leanMax) {
                pm->ps->fLeanAngle = pm->leanMax;
            } else {
                float fAngle     = pm->leanMax - pm->ps->fLeanAngle;
                float fLeanAngle = pml.frametime * pm->leanSpeed;
                float fMult      = pml.frametime * fAngle * pm->leanAdd;

                if (fLeanAngle <= fMult) {
                    fLeanAngle = fMult;
                } else {
                    fLeanAngle = fMult;
                }

                pm->ps->fLeanAngle += fLeanAngle;
            }
        }
    } else if (pm->ps->fLeanAngle) {
        float fAngle = pm->ps->fLeanAngle * pml.frametime * pm->leanRecoverSpeed;

        if (pm->ps->fLeanAngle <= 0.0f) {
            float fLeanAngle = pml.frametime * -pm->leanSpeed;

            if (fLeanAngle >= fAngle) {
                fLeanAngle = fAngle;
            }

            pm->ps->fLeanAngle -= fLeanAngle;
            if (pm->ps->fLeanAngle > 0) {
                pm->ps->fLeanAngle = 0;
            }
        } else {
            float fLeanAngle = pml.frametime * pm->leanSpeed;

            if (fLeanAngle <= fAngle) {
                fLeanAngle = fAngle;
            }

            pm->ps->fLeanAngle -= fLeanAngle;
            if (pm->ps->fLeanAngle < 0) {
                pm->ps->fLeanAngle = 0;
            }
        }
    }

    if (pm->ps->pm_flags & PMF_NO_LEAN) {
        pm->ps->fLeanAngle = 0;
    }

    // update the viewangles
    PM_UpdateViewAngles(pm->ps, &pm->cmd);

    AngleVectorsLeft(pm->ps->viewangles, pml.forward, pml.left, pml.up);
    VectorClear(tempVec);
    tempVec[YAW] = pm->ps->viewangles[YAW];
    AngleVectorsLeft(tempVec, pml.flat_forward, pml.flat_left, pml.flat_up);

    if (pm->ps->pm_type >= PM_DEAD) {
        pm->cmd.forwardmove = 0;
        pm->cmd.rightmove   = 0;
        pm->cmd.upmove      = 0;
        pm->ps->fLeanAngle  = 0.0f;
    }

    if (pm->ps->pm_type == PM_NOCLIP) {
        PM_NoclipMove();
        PM_DropTimers();
        return;
    }

    if ((pm->ps->pm_flags & PMF_NO_MOVE) || (pm->ps->pm_flags & PMF_FROZEN)) {
        PM_CheckDuck();
        return;
    }

    // set watertype, and waterlevel
    PM_SetWaterLevel();
    pml.previous_waterlevel = pmove->waterlevel;

    // set mins, maxs, and viewheight
    PM_CheckDuck();

    // set groundentity
    PM_GroundTrace();

    if (pm->ps->pm_type == PM_DEAD) {
        PM_DeadMove();
    }

    PM_DropTimers();

    if (pml.walking) {
        // walking on ground
        PM_WalkMove();
    } else {
        // airborne
        PM_AirMove();
    }

    walking = pml.walking;

    // set groundentity, watertype, and waterlevel
    PM_GroundTrace();
    PM_SetWaterLevel();

    // don't fall down stairs or do really short falls
    if (!pml.walking && (walking || ((pml.previous_velocity[2] >= 0) && (pm->ps->velocity[2] <= 0)))) {
        vec3_t  point;
        trace_t trace;

        point[0] = pm->ps->origin[0];
        point[1] = pm->ps->origin[1];
        point[2] = pm->ps->origin[2] - STEPSIZE;

        pm->trace(&trace, pm->ps->origin, pm->mins, pm->maxs, point, pm->ps->clientNum, pm->tracemask, qtrue, qfalse);
        if ((trace.fraction < 1.0f) && (!trace.allsolid)) {
            VectorCopy(trace.endpos, pm->ps->origin);

            // allow client to smooth out the step
            pm->stepped = qtrue;

            // requantify the player's position
            PM_GroundTrace();
            PM_SetWaterLevel();
        }
    }

    // entering / leaving water splashes
    PM_WaterEvents();
}

void Pmove_GroundTrace(pmove_t *pmove)
{
    memset(&pml, 0, sizeof(pml));
    pml.msec      = 1;
    pml.frametime = 0.001f;
    pm            = pmove;
    PM_CheckDuck();
    PM_GroundTrace();
}

/*
================
Pmove

Can be called by either the server or the client
================
*/
void Pmove(pmove_t *pmove)
{
    int finalTime;

    finalTime = pmove->cmd.serverTime;

    if (finalTime < pmove->ps->commandTime) {
        return; // should not happen
    }

    if (finalTime > pmove->ps->commandTime + 1000) {
        pmove->ps->commandTime = finalTime - 1000;
    }

    // chop the move up if it is too long, to prevent framerate
    // dependent behavior
    while (pmove->ps->commandTime != finalTime) {
        int msec;

        msec = finalTime - pmove->ps->commandTime;

        if (pmove->pmove_fixed) {
            if (msec > pmove->pmove_msec) {
                msec = pmove->pmove_msec;
            }
        } else if (msec > 66) {
            msec = 66;
        }

        pmove->cmd.serverTime = pmove->ps->commandTime + msec;
        PmoveSingle(pmove);
    }
}

static void PmoveAdjustViewAngleSettings_OnLadder(
    vec_t *vViewAngles, vec_t *vAngles, playerState_t *pPlayerState, entityState_t *pEntState
)
{
    float fDelta;
    float deltayaw;
    float yawAngle;
    float temp;

    vAngles[0] = 0.0f;
    vAngles[2] = 0.0f;

    if (vViewAngles[0] > 73.0f) {
        vViewAngles[0] = 73.0f;
    }

    deltayaw = AngleSubtract(vViewAngles[1], vAngles[1]);

    yawAngle = 70.0f;
    if (deltayaw <= 70.0f) {
        yawAngle = deltayaw;
        if (deltayaw < -70.0f) {
            yawAngle = -70.0f;
        }
    }

    vViewAngles[1] = vAngles[1] + yawAngle;

    fDelta = sqrt(yawAngle * yawAngle + vViewAngles[0] * vViewAngles[0]);

    if (vViewAngles[0] <= 0.0f) {
        temp = 80.0f;
    } else {
        temp = 73.0f;
    }

    if (fDelta > temp) {
        float deltalimit = temp * 1.0f / fDelta;
        vViewAngles[0] *= deltalimit;
        vViewAngles[1] = yawAngle * deltalimit + vAngles[1];
    }
}

void PmoveAdjustAngleSettings(vec_t *vViewAngles, vec_t *vAngles, playerState_t *pPlayerState, entityState_t *pEntState)
{
    vec3_t temp, temp2;
    vec3_t armsAngles, torsoAngles, headAngles;
    float  fTmp;

    if (pPlayerState->pm_type == PM_DEAD) {
        // set the default angles
        VectorSet(pEntState->bone_angles[HEAD_TAG], 0, 0, 0);
        VectorSet(pEntState->bone_angles[TORSO_TAG], 0, 0, 0);
        VectorSet(pEntState->bone_angles[ARMS_TAG], 0, 0, 0);
        VectorSet(pEntState->bone_angles[PELVIS_TAG], 0, 0, 0);
        QuatSet(pEntState->bone_quat[HEAD_TAG], 0, 0, 0, 1);
        QuatSet(pEntState->bone_quat[TORSO_TAG], 0, 0, 0, 1);
        QuatSet(pEntState->bone_quat[ARMS_TAG], 0, 0, 0, 1);
        QuatSet(pEntState->bone_quat[PELVIS_TAG], 0, 0, 0, 1);
    } else if (pPlayerState->pm_type == PM_CLIMBWALL) {
        PmoveAdjustViewAngleSettings_OnLadder(vViewAngles, vAngles, pPlayerState, pEntState);
        VectorSet(pEntState->bone_angles[TORSO_TAG], 0, 0, 0);
        VectorSet(pEntState->bone_angles[ARMS_TAG], 0, 0, 0);
        VectorSet(pEntState->bone_angles[PELVIS_TAG], 0, 0, 0);
        QuatSet(pEntState->bone_quat[TORSO_TAG], 0, 0, 0, 1);
        QuatSet(pEntState->bone_quat[ARMS_TAG], 0, 0, 0, 1);
        QuatSet(pEntState->bone_quat[PELVIS_TAG], 0, 0, 0, 1);

        AnglesSubtract(vViewAngles, vAngles, headAngles);
        VectorScale(headAngles, 0.5f, pEntState->bone_angles[HEAD_TAG]);

        EulerToQuat(headAngles, pEntState->bone_quat[HEAD_TAG]);
    } else {
        if (pPlayerState->pm_flags & PMF_TURRET) {
            vAngles[2] = 0;
            // Added in 2.0
            //  Clients checking this flag will draw an icon
            //  above the head of teammates
            pEntState->eFlags |= EF_PLAYER_ARTILLERY;
        } else {
            fTmp = AngleMod(vViewAngles[1]);
            VectorSet(vAngles, 0, fTmp, 0);
            pEntState->eFlags &= ~EF_PLAYER_ARTILLERY;
        }

        if (pPlayerState->pm_flags & PMF_TURRET) {
            // set the default angles
            VectorSet(pEntState->bone_angles[TORSO_TAG], 0, 0, 0);
            VectorSet(pEntState->bone_angles[ARMS_TAG], 0, 0, 0);
            VectorSet(pEntState->bone_angles[PELVIS_TAG], 0, 0, 0);
            QuatSet(pEntState->bone_quat[TORSO_TAG], 0, 0, 0, 1);
            QuatSet(pEntState->bone_quat[ARMS_TAG], 0, 0, 0, 1);
            QuatSet(pEntState->bone_quat[PELVIS_TAG], 0, 0, 0, 1);

            AnglesSubtract(vViewAngles, vAngles, headAngles);
            // Added in 2.0
            //  Prevent rotating the player head like a monster
            if (headAngles[1] > 90) {
                headAngles[1] = 90;
            }
            if (headAngles[1] < -90) {
                headAngles[1] = -90;
            }

            VectorCopy(headAngles, pEntState->bone_angles[HEAD_TAG]);
            EulerToQuat(pEntState->bone_angles[HEAD_TAG], pEntState->bone_quat[HEAD_TAG]);
            return;
        }

        fTmp = AngleMod(vViewAngles[0]);

        VectorSet(temp, fTmp, 0, pPlayerState->fLeanAngle * 0.60f);
        VectorSet(temp2, fTmp, 0, pPlayerState->fLeanAngle);

        if (fTmp > 180.0f) {
            temp2[0] = fTmp - 360.0f;
        }

        temp2[0] = 0.90f * temp2[0] * 0.70f;

        AnglesSubtract(temp, temp2, headAngles);
        VectorCopy(headAngles, pEntState->bone_angles[HEAD_TAG]);
        EulerToQuat(pEntState->bone_angles[HEAD_TAG], pEntState->bone_quat[HEAD_TAG]);

        if (temp2[0] <= 0.0f) {
            fTmp = -0.1f;
        } else {
            fTmp = 0.3f;
        }

        VectorSet(temp, fTmp * temp2[0], 0, pPlayerState->fLeanAngle * 0.8f);
        VectorCopy(temp, pEntState->bone_angles[PELVIS_TAG]);
        EulerToQuat(pEntState->bone_angles[PELVIS_TAG], pEntState->bone_quat[PELVIS_TAG]);

        float fDelta = (1.0f - fTmp) * temp2[0];

        if (vViewAngles[0] <= 0.0f) {
            VectorSet(torsoAngles, fDelta * 0.60f, 0, pPlayerState->fLeanAngle * 0.2f * -0.1f);
            VectorSet(armsAngles, fDelta * 0.40f, 0, pPlayerState->fLeanAngle * 0.2f * 1.1f);
        } else {
            VectorSet(torsoAngles, fDelta * 0.70f, 0, pPlayerState->fLeanAngle * 0.2f * -0.1f);
            VectorSet(armsAngles, fDelta * 0.30f, 0, pPlayerState->fLeanAngle * 0.2f * 1.1f);
        }

        VectorCopy(torsoAngles, pEntState->bone_angles[TORSO_TAG]);
        EulerToQuat(pEntState->bone_angles[TORSO_TAG], pEntState->bone_quat[TORSO_TAG]);

        VectorCopy(armsAngles, pEntState->bone_angles[ARMS_TAG]);
        EulerToQuat(pEntState->bone_angles[ARMS_TAG], pEntState->bone_quat[ARMS_TAG]);
    }
}

// Used to set arms angles accordingly, calculated client-side
// Without it, the arms will look like it has latency
void PmoveAdjustAngleSettings_Client(
    vec_t *vViewAngles, vec_t *vAngles, playerState_t *pPlayerState, entityState_t *pEntState
)
{
    vec3_t torsoAngles;
    int    i;

    if (pPlayerState->pm_type == PM_DEAD) {
        for (i = 0; i < NUM_BONE_CONTROLLERS; i++) {
            VectorClear(pEntState->bone_angles[i]);
            QuatClear(pEntState->bone_quat[i]);
        }
    } else if (pPlayerState->pm_type == PM_CLIMBWALL) {
        vec3_t headAngles;

        PmoveAdjustViewAngleSettings_OnLadder(vViewAngles, vAngles, pPlayerState, pEntState);
        VectorSet(torsoAngles, AngleMod(vViewAngles[0]), 0.0, pPlayerState->fLeanAngle * 0.7);

        if (torsoAngles[0] > 180.0) {
            torsoAngles[0] -= 180.0;
        }

        torsoAngles[0] += 8.0;

        VectorClear(pEntState->bone_angles[TORSO_TAG]);
        QuatClear(pEntState->bone_quat[TORSO_TAG]);
        VectorClear(pEntState->bone_angles[PELVIS_TAG]);
        QuatClear(pEntState->bone_quat[PELVIS_TAG]);

        VectorCopy(torsoAngles, pEntState->bone_angles[ARMS_TAG]);
        EulerToQuat(pEntState->bone_angles[ARMS_TAG], pEntState->bone_quat[ARMS_TAG]);

        // head angles
        AnglesSubtract(vViewAngles, vAngles, headAngles);
        headAngles[0] *= 0.5;
        AnglesSubtract(headAngles, torsoAngles, headAngles);
        VectorCopy(headAngles, pEntState->bone_angles[HEAD_TAG]);
        EulerToQuat(pEntState->bone_angles[HEAD_TAG], pEntState->bone_quat[HEAD_TAG]);
    } else {
        // Clear the head, torso and pelvis
        VectorClear(pEntState->bone_angles[HEAD_TAG]);
        QuatClear(pEntState->bone_quat[HEAD_TAG]);
        VectorClear(pEntState->bone_angles[TORSO_TAG]);
        QuatClear(pEntState->bone_quat[TORSO_TAG]);
        VectorClear(pEntState->bone_angles[PELVIS_TAG]);
        QuatClear(pEntState->bone_quat[PELVIS_TAG]);

        VectorSet(vAngles, 0, AngleMod(vViewAngles[1]), 0);
        VectorSet(torsoAngles, AngleMod(vViewAngles[0]), 0, pPlayerState->fLeanAngle * 0.7);

        if (torsoAngles[0] > 180.0) {
            torsoAngles[0] -= 360.0;
        }

        torsoAngles[0] += 8.0;
        VectorCopy(torsoAngles, pEntState->bone_angles[ARMS_TAG]);
        EulerToQuat(pEntState->bone_angles[ARMS_TAG], pEntState->bone_quat[ARMS_TAG]);
    }
}