void PM_WaterMove (void)
{
int i;
vec3_t wishvel;
float wishspeed;
vec3_t wishdir;
/* user intentions */
for (i=0 ; i<3 ; i++)
wishvel[i] = pml.forward[i]*pm->cmd.forwardmove + pml.right[i]*pm->cmd.sidemove;
if (!pm->cmd.forwardmove && !pm->cmd.sidemove && !pm->cmd.upmove)
wishvel[2] -= 60; /* drift towards bottom */
else
wishvel[2] += pm->cmd.upmove;
PM_AddCurrents (wishvel);
VectorCopy (wishvel, wishdir);
wishspeed = VectorNormalize(wishdir);
if (wishspeed > pm_maxspeed)
{
VectorScale (wishvel, pm_maxspeed/wishspeed, wishvel);
wishspeed = pm_maxspeed;
}
wishspeed *= 0.5;
PM_Accelerate (wishdir, wishspeed, pm_wateraccelerate);
PM_StepSlideMove ();
}
/*
===================
PM_FlyMove
Only with the flight powerup
===================
*/
static void PM_FlyMove( void ) {
int i;
vec3_t wishvel;
float wishspeed;
vec3_t wishdir;
float scale;
// normal slowdown
PM_Friction ();
scale = PM_CmdScale( &pm->cmd );
//
// user intentions
//
if ( !scale ) {
wishvel[0] = 0;
wishvel[1] = 0;
wishvel[2] = 0;
} else {
for (i=0 ; i<3 ; i++) {
wishvel[i] = scale * pml.forward[i]*pm->cmd.forwardmove + scale * pml.right[i]*pm->cmd.rightmove;
}
wishvel[2] += scale * pm->cmd.upmove;
}
VectorCopy (wishvel, wishdir);
wishspeed = VectorNormalize(wishdir);
PM_Accelerate (wishdir, wishspeed, pm_flyaccelerate);
PM_StepSlideMove( qfalse );
}
/*
===================
PM_WaterMove
===================
*/
static void PM_WaterMove (void)
{
vec3_t wishvel, wishdir;
float wishspeed;
// user intentions
wishvel[0] = pml.forward[0] * pm->cmd.forwardmove + pml.right[0] * pm->cmd.sidemove;
wishvel[1] = pml.forward[1] * pm->cmd.forwardmove + pml.right[1] * pm->cmd.sidemove;
wishvel[2] = pml.forward[2] * pm->cmd.forwardmove + pml.right[2] * pm->cmd.sidemove;
if (!pm->cmd.forwardmove && !pm->cmd.sidemove && !pm->cmd.upmove)
wishvel[2] -= 60; // drift towards bottom
else
wishvel[2] += pm->cmd.upmove;
PM_AddCurrents (wishvel);
VectorCopy (wishvel, wishdir);
wishspeed = VectorNormalize(wishdir);
if (wishspeed > pm_maxspeed)
{
VectorScale (wishvel, pm_maxspeed/wishspeed, wishvel);
wishspeed = pm_maxspeed;
}
wishspeed *= 0.5f;
PM_Accelerate (wishdir, wishspeed, pm_wateraccelerate);
PM_StepSlideMove ();
}
/*
===================
PM_AirMove
===================
*/
static void PM_AirMove( void ) {
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 );
}
#if 0
//ZOID: If we are on the grapple, try stair-stepping
//this allows a player to use the grapple to pull himself
//over a ledge
if (pm->ps->pm_flags & PMF_GRAPPLE_PULL)
PM_StepSlideMove ( qtrue );
else
PM_SlideMove ( qtrue );
#endif
PM_StepSlideMove ( qtrue );
}
/*
===============
PM_NoclipMove
===============
*/
static void PM_NoclipMove( void ) {
float speed, drop, friction, control, newspeed;
int i;
vec3_t wishvel;
float fmove, smove;
vec3_t wishdir;
float wishspeed;
float scale;
pm->ps->viewheight = DEFAULT_VIEWHEIGHT;
// friction
speed = VectorLength (pm->ps->velocity);
if (speed < 1)
{
VectorCopy (vec3_origin, pm->ps->velocity);
}
else
{
drop = 0;
friction = pm_friction*1.5; // extra friction
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
scale = PM_CmdScale( &pm->cmd );
fmove = pm->cmd.forwardmove;
smove = pm->cmd.rightmove;
for (i=0 ; i<3 ; i++)
wishvel[i] = pml.forward[i]*fmove + pml.right[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_WaterMove
===================
*/
void PM_WaterMove (void)
{
int i;
vec3_t wishvel;
float wishspeed;
vec3_t wishdir;
vec3_t start, dest;
pmtrace_t trace;
//
// user intentions
//
for (i=0 ; i<3 ; i++)
wishvel[i] = forward[i]*pmove.cmd.forwardmove + right[i]*pmove.cmd.sidemove;
if (!pmove.cmd.forwardmove && !pmove.cmd.sidemove && !pmove.cmd.upmove)
wishvel[2] -= 60; // drift towards bottom
else
wishvel[2] += pmove.cmd.upmove;
VectorCopy (wishvel, wishdir);
wishspeed = VectorNormalize(wishdir);
if (wishspeed > movevars.maxspeed)
{
VectorScale (wishvel, movevars.maxspeed/wishspeed, wishvel);
wishspeed = movevars.maxspeed;
}
wishspeed *= 0.7;
//
// water acceleration
//
// if (pmove.waterjumptime)
// Con_Printf ("wm->%f, %f, %f\n", pmove.velocity[0], pmove.velocity[1], pmove.velocity[2]);
PM_Accelerate (wishdir, wishspeed, movevars.wateraccelerate);
// assume it is a stair or a slope, so press down from stepheight above
VectorMA (pmove.origin, frametime, pmove.velocity, dest);
VectorCopy (dest, start);
start[2] += STEPSIZE + 1;
trace = PM_PlayerMove (start, dest);
if (!trace.startsolid && !trace.allsolid) // FIXME: check steep slope?
{ // walked up the step
VectorCopy (trace.endpos, pmove.origin);
return;
}
PM_FlyMove ();
// if (pmove.waterjumptime)
// Con_Printf ("<-wm%f, %f, %f\n", pmove.velocity[0], pmove.velocity[1], pmove.velocity[2]);
}
/*
===================
PM_LadderMove()
by: Calrathan [Arthur Tomlin]
Right now all I know is that this works for VERTICAL ladders.
Ladders with angles on them (urban2 for AQ2) haven't been tested.
===================
*/
static void PM_LadderMove( void ) {
int i;
vec3_t wishvel;
float wishspeed;
vec3_t wishdir;
float scale;
float vel;
PM_Friction ();
scale = PM_CmdScale( &pm->cmd );
// user intentions [what the user is attempting to do]
if ( !scale ) {
wishvel[0] = 0;
wishvel[1] = 0;
wishvel[2] = 0;
}
else { // if they're trying to move... lets calculate it
for (i=0 ; i<3 ; i++)
wishvel[i] = scale * pml.forward[i]*pm->cmd.forwardmove +
scale * pml.right[i]*pm->cmd.rightmove;
wishvel[2] += scale * pm->cmd.upmove;
}
VectorCopy (wishvel, wishdir);
wishspeed = VectorNormalize(wishdir);
if ( wishspeed > pm->ps->speed * pm_ladderScale ) {
wishspeed = pm->ps->speed * pm_ladderScale;
}
PM_Accelerate (wishdir, wishspeed, pm_ladderAccelerate);
// This SHOULD help us with sloped ladders, but it remains untested.
if ( pml.groundPlane && DotProduct( pm->ps->velocity,
pml.groundTrace.plane.normal ) < 0 ) {
vel = VectorLength(pm->ps->velocity);
// slide along the ground plane [the ladder section under our feet]
PM_ClipVelocity (pm->ps->velocity, pml.groundTrace.plane.normal,
pm->ps->velocity, OVERCLIP );
VectorNormalize(pm->ps->velocity);
VectorScale(pm->ps->velocity, vel, pm->ps->velocity);
}
PM_SlideMove( qfalse ); // move without gravity
}
/*
PM_FlymodeMove
Pre-PM_FlyMove function for MOVETYPE_FLY players. Could have altered
other physics to fit this in, but that's to easy to screw up. --KB
*/
void
PM_FlymodeMove (void)
{
vec3_t start, dest, pmvel, pmtmp;
trace_t trace;
float pmspeed;
pmvel[0] =
forward[0] * pmove.cmd.forwardmove + right[0] * pmove.cmd.sidemove;
pmvel[1] =
forward[1] * pmove.cmd.forwardmove + right[1] * pmove.cmd.sidemove;
pmvel[2] =
forward[2] * pmove.cmd.forwardmove + right[2] * pmove.cmd.sidemove +
pmove.cmd.upmove;
VectorCopy (pmvel, pmtmp);
pmspeed = VectorNormalize (pmtmp); // don't alter pmvel
if (pmspeed > movevars.maxspeed) // there IS a spoon, Neo..
{
VectorScale (pmvel, movevars.maxspeed / pmspeed, pmvel);
pmspeed = movevars.maxspeed;
}
PM_Accelerate (pmtmp, pmspeed, movevars.wateraccelerate);
VectorMA (pmove.origin, frametime, pmove.velocity, dest);
VectorCopy (dest, start);
start[2] += STEPSIZE + 1;
trace = PM_PlayerMove (start, dest);
if (!trace.startsolid && !trace.allsolid) {
VectorCopy (trace.endpos, pmove.origin);
return; // just step up
}
PM_FlyMove (); // NOW we fly.
}
/*
PM_AirMove
*/
void
PM_AirMove (void)
{
int i;
vec3_t wishvel;
float fmove, smove;
vec3_t wishdir;
float wishspeed;
vec3_t original;
fmove = pmove.cmd.forwardmove;
smove = pmove.cmd.sidemove;
forward[2] = 0;
right[2] = 0;
VectorNormalize (forward);
VectorNormalize (right);
for (i = 0; i < 2; i++)
wishvel[i] = forward[i] * fmove + right[i] * smove;
wishvel[2] = 0;
VectorCopy (wishvel, wishdir);
wishspeed = VectorNormalize (wishdir);
//
// clamp to server defined max speed
//
if (wishspeed > movevars.maxspeed) {
VectorScale (wishvel, movevars.maxspeed / wishspeed, wishvel);
wishspeed = movevars.maxspeed;
}
if (onground != -1) {
pmove.velocity[2] = 0;
PM_Accelerate (wishdir, wishspeed, movevars.accelerate);
pmove.velocity[2] -= movevars.entgravity * movevars.gravity * frametime;
PM_GroundMove ();
} else if (pmove.flying) {
PM_AirAccelerate (wishdir, wishspeed, movevars.accelerate);
PM_FlyMove ();
} else {
// not on ground, so little effect on velocity
PM_AirAccelerate (wishdir, wishspeed, movevars.accelerate);
// add gravity
pmove.velocity[2] -= movevars.entgravity * movevars.gravity * frametime;
if (!PM_FlyMove ()) {
// the move didn't get blocked
PM_CategorizePosition ();
if (onground != -1) // but we're on ground now
{
// This is a hack to fix the jumping bug
VectorCopy (pmove.origin, original);
// Calculate correct velocity
if (!PM_FlyMove ()) {
// This shouldn't probably happen (?)
if (pmove.velocity[2] < 0)
pmove.velocity[2] = 0;
}
VectorCopy (original, pmove.origin);
}
}
}
}
void PM_AirMove (void)
{
int i;
vec3_t wishvel;
float fmove, smove;
vec3_t wishdir;
float wishspeed;
float maxspeed;
fmove = pm->cmd.forwardmove;
smove = pm->cmd.sidemove;
for (i=0 ; i<2 ; i++)
wishvel[i] = pml.forward[i]*fmove + pml.right[i]*smove;
wishvel[2] = 0;
PM_AddCurrents (wishvel);
VectorCopy (wishvel, wishdir);
wishspeed = VectorNormalize(wishdir);
/* clamp to server defined max speed */
maxspeed = (pm->s.pm_flags & PMF_DUCKED) ? pm_duckspeed : pm_maxspeed;
if (wishspeed > maxspeed)
{
VectorScale (wishvel, maxspeed/wishspeed, wishvel);
wishspeed = maxspeed;
}
if ( pml.ladder )
{
PM_Accelerate (wishdir, wishspeed, pm_accelerate);
if (!wishvel[2])
{
if (pml.velocity[2] > 0)
{
pml.velocity[2] -= pm->s.gravity * pml.frametime;
if (pml.velocity[2] < 0)
pml.velocity[2] = 0;
}
else
{
pml.velocity[2] += pm->s.gravity * pml.frametime;
if (pml.velocity[2] > 0)
pml.velocity[2] = 0;
}
}
PM_StepSlideMove ();
}
else if ( pm->groundentity )
{
/* walking on ground */
pml.velocity[2] = 0;
PM_Accelerate (wishdir, wishspeed, pm_accelerate);
if(pm->s.gravity > 0)
pml.velocity[2] = 0;
else
pml.velocity[2] -= pm->s.gravity * pml.frametime;
if (!pml.velocity[0] && !pml.velocity[1])
return;
PM_StepSlideMove ();
}
else
{
/* not on ground, so little effect on velocity */
if (pm_airaccelerate)
PM_AirAccelerate (wishdir, wishspeed, pm_accelerate);
else
PM_Accelerate (wishdir, wishspeed, 1);
/* add gravity */
pml.velocity[2] -= pm->s.gravity * pml.frametime;
PM_StepSlideMove ();
}
}
/*
===================
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;
float vel;
if ( pm->waterlevel > 2 && DotProduct( pml.forward, pml.groundTrace.plane.normal ) > 0 ) {
// begin swimming
PM_WaterMove();
return;
}
if ( PM_CheckJump () ) {
// jumped away
if ( pm->waterlevel > 1 ) {
PM_WaterMove();
} else {
PM_AirMove();
}
return;
}
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;
// project the forward and right directions onto the ground plane
PM_ClipVelocity (pml.forward, pml.groundTrace.plane.normal, pml.forward, OVERCLIP );
PM_ClipVelocity (pml.right, pml.groundTrace.plane.normal, pml.right, OVERCLIP );
//
VectorNormalize (pml.forward);
VectorNormalize (pml.right);
for ( i = 0 ; i < 3 ; i++ ) {
wishvel[i] = pml.forward[i]*fmove + pml.right[i]*smove;
}
// when going up or down slopes the wish velocity should Not be zero
// wishvel[2] = 0;
VectorCopy (wishvel, wishdir);
wishspeed = VectorNormalize(wishdir);
wishspeed *= scale;
// clamp the speed lower if ducking
if ( pm->ps->pm_flags & PMF_DUCKED ) {
if ( wishspeed > pm->ps->speed * pm_duckScale ) {
wishspeed = pm->ps->speed * pm_duckScale;
}
}
// clamp the speed lower if wading or walking on the bottom
if ( pm->waterlevel ) {
float waterScale;
waterScale = pm->waterlevel / 3.0;
waterScale = 1.0 - ( 1.0 - pm_swimScale ) * waterScale;
if ( wishspeed > pm->ps->speed * waterScale ) {
wishspeed = pm->ps->speed * waterScale;
}
}
// when a player gets hit, they temporarily lose
// full control, which allows them to be moved a bit
if ( ( pml.groundTrace.surfaceFlags & SURF_SLICK ) || pm->ps->pm_flags & PMF_TIME_KNOCKBACK ) {
accelerate = pm_airaccelerate;
} else {
accelerate = pm_accelerate;
}
PM_Accelerate (wishdir, wishspeed, accelerate);
//Com_Printf("velocity = %1.1f %1.1f %1.1f\n", pm->ps->velocity[0], pm->ps->velocity[1], pm->ps->velocity[2]);
//Com_Printf("velocity1 = %1.1f\n", VectorLength(pm->ps->velocity));
if ( ( pml.groundTrace.surfaceFlags & SURF_SLICK ) || pm->ps->pm_flags & PMF_TIME_KNOCKBACK ) {
pm->ps->velocity[2] -= pm->ps->gravity * pml.frametime;
} else {
// don't reset the z velocity for slopes
// pm->ps->velocity[2] = 0;
}
vel = VectorLength(pm->ps->velocity);
// slide along the ground plane
PM_ClipVelocity (pm->ps->velocity, pml.groundTrace.plane.normal,
pm->ps->velocity, OVERCLIP );
// don't decrease velocity when going up or down a slope
VectorNormalize(pm->ps->velocity);
VectorScale(pm->ps->velocity, vel, pm->ps->velocity);
// don't do anything if standing still
if (!pm->ps->velocity[0] && !pm->ps->velocity[1]) {
return;
}
PM_StepSlideMove( qfalse );
//Com_Printf("velocity2 = %1.1f\n", VectorLength(pm->ps->velocity));
}
/*
===================
PM_WaterMove
===================
*/
static void PM_WaterMove( void ) {
int i;
vec3_t wishvel;
float wishspeed;
vec3_t wishdir;
float scale;
float vel;
if ( PM_CheckWaterJump() ) {
PM_WaterJumpMove();
return;
}
#if 0
// jump = head for surface
if ( pm->cmd.upmove >= 10 ) {
if (pm->ps->velocity[2] > -300) {
if ( pm->watertype == CONTENTS_WATER ) {
pm->ps->velocity[2] = 100;
} else if (pm->watertype == CONTENTS_SLIME) {
pm->ps->velocity[2] = 80;
} else {
pm->ps->velocity[2] = 50;
}
}
}
#endif
PM_Friction ();
scale = PM_CmdScale( &pm->cmd );
//
// user intentions
//
if ( !scale ) {
wishvel[0] = 0;
wishvel[1] = 0;
wishvel[2] = -60; // sink towards bottom
} else {
for (i=0 ; i<3 ; i++)
wishvel[i] = scale * pml.forward[i]*pm->cmd.forwardmove + scale * pml.right[i]*pm->cmd.rightmove;
wishvel[2] += scale * pm->cmd.upmove;
}
VectorCopy (wishvel, wishdir);
wishspeed = VectorNormalize(wishdir);
if ( wishspeed > pm->ps->speed * pm_swimScale ) {
wishspeed = pm->ps->speed * pm_swimScale;
}
PM_Accelerate (wishdir, wishspeed, pm_wateraccelerate);
// make sure we can go up slopes easily under water
if ( pml.groundPlane && DotProduct( pm->ps->velocity, pml.groundTrace.plane.normal ) < 0 ) {
vel = VectorLength(pm->ps->velocity);
// slide along the ground plane
PM_ClipVelocity (pm->ps->velocity, pml.groundTrace.plane.normal,
pm->ps->velocity, OVERCLIP );
VectorNormalize(pm->ps->velocity);
VectorScale(pm->ps->velocity, vel, pm->ps->velocity);
}
PM_SlideMove( qfalse );
}
/*
===================
PM_AirMove
===================
*/
void PM_AirMove (void)
{
int i;
vec3_t wishvel;
float fmove, smove;
vec3_t wishdir;
float wishspeed;
float maxspeed;
fmove = pm->cmd.forwardmove;
smove = pm->cmd.sidemove;
//!!!!! pitch should be 1/3 so this isn't needed??!
#if 0
pml.forward[2] = 0;
pml.right[2] = 0;
VectorNormalize (pml.forward);
VectorNormalize (pml.right);
#endif
for (i=0 ; i<2 ; i++)
wishvel[i] = pml.forward[i]*fmove + pml.right[i]*smove;
wishvel[2] = 0;
PM_AddCurrents (wishvel);
VectorCopy (wishvel, wishdir);
wishspeed = VectorNormalize(wishdir);
//
// clamp to server defined max speed
//
maxspeed = (pm->s.pm_flags & PMF_DUCKED) ? pm_duckspeed : pm_maxspeed;
if (wishspeed > maxspeed)
{
VectorScale (wishvel, maxspeed/wishspeed, wishvel);
wishspeed = maxspeed;
}
if ( pml.ladder )
{
PM_Accelerate (wishdir, wishspeed, pm_accelerate);
if (!wishvel[2])
{
if (pml.velocity[2] > 0)
{
pml.velocity[2] -= pm->s.gravity * pml.frametime;
if (pml.velocity[2] < 0)
pml.velocity[2] = 0;
}
else
{
pml.velocity[2] += pm->s.gravity * pml.frametime;
if (pml.velocity[2] > 0)
pml.velocity[2] = 0;
}
}
PM_StepSlideMove ();
}
else if ( pm->groundentity )
{ // walking on ground
pml.velocity[2] = 0; //!!! this is before the accel
PM_Accelerate (wishdir, wishspeed, pm_accelerate);
// PGM -- fix for negative trigger_gravity fields
// pml.velocity[2] = 0;
if(pm->s.gravity > 0)
pml.velocity[2] = 0;
else
pml.velocity[2] -= pm->s.gravity * pml.frametime;
// PGM
if (!pml.velocity[0] && !pml.velocity[1])
return;
PM_StepSlideMove ();
}
else
{ // not on ground, so little effect on velocity
if (pm_airaccelerate)
PM_AirAccelerate (wishdir, wishspeed, pm_accelerate);
else
PM_Accelerate (wishdir, wishspeed, 1);
// add gravity
pml.velocity[2] -= pm->s.gravity * pml.frametime;
PM_StepSlideMove ();
}
}
/*
===================
PM_AirMove
===================
*/
void PM_AirMove (void)
{
int i;
vec3_t wishvel;
float fmove, smove;
vec3_t wishdir;
float wishspeed;
fmove = pmove.cmd.forwardmove;
smove = pmove.cmd.sidemove;
forward[2] = 0;
right[2] = 0;
VectorNormalize (forward);
VectorNormalize (right);
for (i=0 ; i<2 ; i++)
wishvel[i] = forward[i]*fmove + right[i]*smove;
wishvel[2] = 0;
VectorCopy (wishvel, wishdir);
wishspeed = VectorNormalize(wishdir);
//
// clamp to server defined max speed
//
if (wishspeed > movevars.maxspeed)
{
VectorScale (wishvel, movevars.maxspeed/wishspeed, wishvel);
wishspeed = movevars.maxspeed;
}
// if (pmove.waterjumptime)
// Con_Printf ("am->%f, %f, %f\n", pmove.velocity[0], pmove.velocity[1], pmove.velocity[2]);
if ( onground != -1)
{
pmove.velocity[2] = 0;
PM_Accelerate (wishdir, wishspeed, movevars.accelerate);
pmove.velocity[2] -= movevars.entgravity * movevars.gravity * frametime;
PM_GroundMove ();
}
else
{ // not on ground, so little effect on velocity
PM_AirAccelerate (wishdir, wishspeed, movevars.accelerate);
// add gravity
pmove.velocity[2] -= movevars.entgravity * movevars.gravity * frametime;
PM_FlyMove ();
}
//Con_Printf("airmove:vec: %4.2f %4.2f %4.2f\n",
// pmove.velocity[0],
// pmove.velocity[1],
// pmove.velocity[2]);
//
// if (pmove.waterjumptime)
// Con_Printf ("<-am%f, %f, %f\n", pmove.velocity[0], pmove.velocity[1], pmove.velocity[2]);
}
static void ApplyPhysics (gedict_t* self)
{
float drop = 0;
vec3_t expected_velocity;
float vel_length = 0;
float hor_speed_squared;
float movement_skill = bound (0, self->fb.skill.movement, 1.0);
qbool onGround = (int)self->s.v.flags & FL_ONGROUND;
// Just perform the move if we're backing away
if (FUTURE (arrow_time2)) {
return;
}
if (deathmatch >= 4 && isDuel() && !self->fb.skill.wiggle_run_dmm4) {
return;
}
// Step 1: Apply friction
VectorCopy (self->s.v.velocity, expected_velocity);
vel_length = VectorLength (expected_velocity);
if (vel_length < 1)
return;
if (self->s.v.waterlevel >= 2) {
// Swimming...
float waterfriction = cvar ("sv_waterfriction");
drop = vel_length * waterfriction * self->s.v.waterlevel * g_globalvars.frametime;
}
else if (onGround) {
// FIXME: friction is doubled if player is about to drop off a ledge
float stopspeed = cvar ("sv_stopspeed");
float friction = cvar ("sv_friction");
float control = vel_length < stopspeed ? stopspeed : vel_length;
drop = control * friction * g_globalvars.frametime;
}
if (drop) {
float new_vel = max (vel_length - drop, 0);
VectorScale (expected_velocity, new_vel / vel_length, expected_velocity);
vel_length = new_vel;
}
else {
vel_length = VectorLength (expected_velocity);
}
// Step 2: change direction to maximise acceleration in desired direction
if (self->s.v.waterlevel >= 2) {
// Water movement
}
else {
float min_numerator = onGround ? 319 : 29;
float max_numerator = onGround ? 281.6 : -8.4;
float used_numerator;
float max_incr;
vec3_t current_direction;
vec3_t original_direction;
// Gravity kicks in
/*
if (!onGround)
expected_velocity[2] -= self->gravity * cvar ("sv_gravity") * g_globalvars.frametime;
else
expected_velocity[2] = 0;
*/
// Ground & air acceleration is the same
hor_speed_squared = (expected_velocity[0] * expected_velocity[0] + expected_velocity[1] * expected_velocity[1]);
if (onGround && hor_speed_squared < sv_maxspeed * sv_maxspeed * 0.8 * 0.8) {
return;
}
self->fb.dir_move_[2] = 0;
normalize(self->fb.dir_move_, original_direction);
normalize(expected_velocity, current_direction);
used_numerator = min_numerator + movement_skill * (max_numerator - min_numerator);
max_incr = used_numerator * used_numerator;
if (hor_speed_squared >= max_incr) {
vec3_t perpendicular;
vec3_t up_vector = { 0, 0, 1 };
float rotation = acos(max_incr / hor_speed_squared) * 180 / M_PI;
// Find out if rotation should be positive or negative
CrossProduct (current_direction, original_direction, perpendicular);
if ((self->fb.path_state & BOTPATH_CURLJUMP_HINT) && !onGround) {
// Once in the air, we rotate in opposite direction
// FIXME: THIS IS UGLY HACK
if (framecount % 3) {
rotation = 0;
}
else if (self->fb.angle_hint > 0) {
rotation = -rotation;
}
}
else if (deathmatch == 4) {
if (self->fb.wiggle_run_dir == 0) {
self->fb.wiggle_increasing = perpendicular[2] > 0;
self->fb.wiggle_run_dir = self->fb.wiggle_increasing ? 1 : -1;
}
else if (self->fb.wiggle_run_dir > self->fb.skill.wiggle_run_limit && perpendicular[2] < 0) {
self->fb.wiggle_increasing = false;
}
else if (self->fb.wiggle_run_dir < -self->fb.skill.wiggle_run_limit && perpendicular[2] > 0) {
self->fb.wiggle_increasing = 1;
}
else if (self->fb.wiggle_increasing) {
++self->fb.wiggle_run_dir;
}
else {
--self->fb.wiggle_run_dir;
}
if (self->fb.wiggle_increasing) {
rotation = -rotation;
}
}
else if (perpendicular[2] < 0) {
rotation = -rotation;
}
if (rotation) {
vec3_t proposed_dir;
vec3_t vel_after_rot;
vec3_t vel_std;
float dp_std, dp_rot;
RotatePointAroundVector (proposed_dir, up_vector, current_direction, rotation);
// Calculate what mvdsv will do (roughly)
PM_Accelerate (expected_velocity, (int)self->s.v.flags & FL_ONGROUND, proposed_dir, vel_after_rot, false);
PM_Accelerate (expected_velocity, (int)self->s.v.flags & FL_ONGROUND, current_direction, vel_std, false);
// Only rotate if 'better' than moving normally
dp_rot = DotProduct (vel_after_rot, original_direction);
dp_std = DotProduct (vel_std, original_direction);
if (dp_rot > dp_std || dp_rot >= 0.9) {
VectorCopy (proposed_dir, self->fb.dir_move_);
if (self->fb.debug_path) {
PM_Accelerate(expected_velocity, (int)self->s.v.flags & FL_ONGROUND, proposed_dir, vel_after_rot, true);
}
}
else if (self->fb.debug_path) {
PM_Accelerate (expected_velocity, (int)self->s.v.flags & FL_ONGROUND, current_direction, vel_std, true);
}
}
else {
#ifdef DEBUG_MOVEMENT
if (self->fb.debug_path && ! onGround) {
G_bprint (PRINT_HIGH, "> AirControl rotation: <ignoring>\n");
}
#endif
}
}
}
}
