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pmove.as
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/*
Copyright (C) 1997-2001 Id Software, Inc.
Copyright (C) 2007 Chasseur de Bots
Copyright (C) 2019 Victor Luchits
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
namespace PM {
class PMoveLocal {
PMove @pm;
PlayerState @playerState;
PMoveState @pmoveState;
UserCmd cmd;
Vec3 origin; // full float precision
Vec3 velocity; // full float precision
Vec3 pm_mins, pm_maxs;
int pm_flags;
Vec3 forward, right, up;
Vec3 flatforward; // normalized forward without z component, saved here because it needs
// special handling for looking straight up or down
float frametime;
int groundSurfFlags;
Vec3 groundPlaneNormal;
float groundPlaneDist;
int groundContents;
Vec3 previousOrigin;
bool ladder;
float forwardPush, sidePush, upPush;
float maxPlayerSpeed;
float maxWalkSpeed;
float maxCrouchedSpeed;
float jumpPlayerSpeed;
float dashPlayerSpeed;
void BeginMove( PMove @pm_, PlayerState @ps, UserCmd cmd_ ) {
@pm = pm_;
@playerState = @ps;
@pmoveState = @ps.pmove;
cmd = cmd_;
origin = pmoveState.origin;
velocity = pmoveState.velocity;
// save old org in case we get stuck
previousOrigin = origin;
ps.viewAngles.angleVectors( forward, right, up );
flatforward = forward;
flatforward.z = 0.0f;
flatforward.normalize();
frametime = cmd.msec * 0.001;
maxPlayerSpeed = pmoveState.stats[PM_STAT_MAXSPEED];
jumpPlayerSpeed = float( pmoveState.stats[PM_STAT_JUMPSPEED] ) * GRAVITY_COMPENSATE;
dashPlayerSpeed = pmoveState.stats[PM_STAT_DASHSPEED];
maxWalkSpeed = DEFAULT_WALKSPEED;
if( maxWalkSpeed > maxPlayerSpeed * 0.66f ) {
maxWalkSpeed = maxPlayerSpeed * 0.66f;
}
maxCrouchedSpeed = DEFAULT_CROUCHEDSPEED;
if( maxCrouchedSpeed > maxPlayerSpeed * 0.5f ) {
maxCrouchedSpeed = maxPlayerSpeed * 0.5f;
}
forwardPush = float( cmd.forwardmove ) * SPEEDKEY / 127.0f;
sidePush = float( cmd.sidemove ) * SPEEDKEY / 127.0f;
upPush = float( cmd.upmove ) * SPEEDKEY / 127.0f;
pm_flags = pmoveState.pm_flags;
}
float Speed() {
return velocity.length();
}
float HorizontalSpeed() {
return HorizontalLength( velocity );
}
void SetHorizontalSpeed( float speed ) {
float hnorm = HorizontalSpeed();
if( hnorm != 0.0f ) {
hnorm = 1.0f / hnorm;
}
hnorm *= speed;
velocity.x *= hnorm;
velocity.y *= hnorm;
}
void SetSize( const Vec3 &in mins, const Vec3 &in maxs ) {
pm_mins = mins;
pm_maxs = maxs;
pm.setSize( mins, maxs );
}
int SlideMove() {
if( pm.groundEntity != -1 ) { // clip velocity to ground, no need to wait
// if the ground is not horizontal (a ramp) clipping will slow the player down
if( groundPlaneNormal.z == 1.0f && velocity.z < 0.0f ) {
velocity.z = 0.0f;
}
}
pm.velocity = velocity;
pm.origin = origin;
pm.remainingTime = frametime;
pm.slideBounce = PM_OVERBOUNCE;
int blockedmask = pm.slideMove();
velocity = pm.velocity;
origin = pm.origin;
return blockedmask;
}
/*
* StepSlideMove
*
* Each intersection will try to step over the obstruction instead of
* sliding along it.
*/
void StepSlideMove() {
Vec3 start_o, start_v;
Vec3 down_o, down_v;
Trace trace;
float down_dist, up_dist;
float hspeed;
Vec3 up, down;
int blocked;
start_o = origin;
start_v = velocity;
blocked = SlideMove();
// We have modified the origin in PM_SlideMove() in this case.
// No further computations are required.
if( pm.skipCollision ) {
return;
}
down_o = origin;
down_v = velocity;
up = start_o;
up.z += STEPSIZE;
trace.doTrace( up, pm_mins, pm_maxs, up, playerState.POVnum, pm.contentMask );
if( trace.allSolid ) {
return; // can't step up
}
// try sliding above
origin = up;
velocity = start_v;
SlideMove();
// push down the final amount
down = origin;
down.z -= STEPSIZE;
trace.doTrace( origin, pm_mins, pm_maxs, down, playerState.POVnum, pm.contentMask );
if( !trace.allSolid ) {
origin = trace.endPos;
}
up = origin;
// decide which one went farther
down_dist = ( down_o.x - start_o.x ) * ( down_o.x - start_o.x )
+ ( down_o.y - start_o.y ) * ( down_o.y - start_o.y );
up_dist = ( up.x - start_o.x ) * ( up.x - start_o.x )
+ ( up.y - start_o.y ) * ( up.y - start_o.y );
if( down_dist >= up_dist || trace.allSolid || ( trace.fraction != 1.0 && !IsWalkablePlane( trace.planeNormal ) ) ) {
origin = down_o;
velocity = down_v;
return;
}
// only add the stepping output when it was a vertical step
if( ( blocked & SLIDEMOVEFLAG_WALL_BLOCKED ) != 0 ){
pm.step = ( origin.z - previousOrigin.z );
}
// Preserve speed when sliding up ramps
hspeed = HorizontalLength( start_v );
if( hspeed > 0.0f && IsWalkablePlane( trace.planeNormal ) ) {
if( trace.planeNormal.z >= 1.0f - SLIDEMOVE_PLANEINTERACT_EPSILON ) {
velocity = start_v;
} else {
SetHorizontalSpeed( hspeed );
}
}
// wsw : jal : The following line is what produces the ramp sliding.
//!! Special case
// if we were walking along a plane, then we need to copy the Z over
velocity.z = down_v.z;
}
/*
* Friction -- Modified for wsw
*
* Handles both ground friction and water friction
*/
void Friction() {
float speed, newspeed, control;
float friction;
float drop;
drop = 0.0f;
speed = Speed();
if( speed < 1 ) {
velocity.x = velocity.y = 0;
return;
}
// apply ground friction
if( ( ( ( ( pm.groundEntity != -1 ) && ( groundSurfFlags & SURF_SLICK ) == 0 ) )
&& ( pm.waterLevel < 2 ) ) || ladder ) {
if( pmoveState.stats[PM_STAT_KNOCKBACK] <= 0 ) {
friction = pm_friction;
control = speed < pm_decelerate ? pm_decelerate : speed;
if( ( pm_flags & PMF_CROUCH_SLIDING ) != 0 ) {
if( pmoveState.stats[PM_STAT_CROUCHSLIDETIME] < PM_CROUCHSLIDE_FADE ) {
friction *= 1 - sqrt( float( pmoveState.stats[PM_STAT_CROUCHSLIDETIME] ) / PM_CROUCHSLIDE_FADE );
} else {
friction = 0;
}
}
drop += control * friction * frametime;
}
}
// apply water friction
if( ( pm.waterLevel >= 2 ) && !ladder ) {
drop += speed * pm_waterfriction * pm.waterLevel * frametime;
}
// scale the velocity
newspeed = speed - drop;
if( newspeed <= 0 ) {
velocity.clear();
} else {
newspeed /= speed;
velocity *= newspeed;
}
}
/*
* Accelerate
*
* Handles user intended acceleration
*/
void Accelerate( const Vec3 &in wishdir, float wishspeed, float accel ) {
float addspeed, accelspeed, currentspeed, realspeed, newspeed;
bool crouchslide;
realspeed = Speed();
currentspeed = velocity * wishdir;
addspeed = wishspeed - currentspeed;
if( addspeed <= 0 ) {
return;
}
accelspeed = accel * frametime * wishspeed;
if( accelspeed > addspeed ) {
accelspeed = addspeed;
}
crouchslide = ( pm_flags & PMF_CROUCH_SLIDING ) != 0 && pm.groundEntity != -1 && ( groundSurfFlags & SURF_SLICK ) == 0;
if( crouchslide ) {
accelspeed *= PM_CROUCHSLIDE_CONTROL;
}
velocity += accelspeed * wishdir;
if( crouchslide ) { // disable overacceleration while crouch sliding
newspeed = Speed();
if( newspeed > wishspeed && newspeed != 0 ) {
velocity *= max( wishspeed, realspeed ) / newspeed;
}
}
}
void AirAccelerate( const Vec3 &in wishdir, float wishspeed ) {
Vec3 heading( velocity.x, velocity.y, 0 );
float speed = heading.normalize();
// Speed is below player walk speed
if( speed <= maxPlayerSpeed ) {
// Apply acceleration
velocity += ( maxPlayerSpeed * frametime ) * wishdir;
return;
}
// Calculate a dot product between heading and wishdir
// Looking straight results in better acceleration
float dot = Boundf( 0.0f, 50 * ( heading * wishdir - 0.98 ), 1.0f );
// Calculate resulting acceleration
float accel = dot * maxPlayerSpeed * maxPlayerSpeed * maxPlayerSpeed / ( speed * speed );
// Apply acceleration
velocity += accel * frametime * heading;
}
// when using +strafe convert the inertia to forward speed.
void Aircontrol( const Vec3 &in wishdir, float wishspeed ) {
int i;
float zspeed, speed, dot, k;
float smove;
if( pm_aircontrol == 0 ) {
return;
}
// accelerate
smove = sidePush;
if( ( smove > 0 || smove < 0 ) || ( wishspeed == 0.0 ) ) {
return; // can't control movement if not moving forward or backward
}
zspeed = velocity.z;
velocity.z = 0;
speed = velocity.normalize();
dot = velocity * wishdir;
k = 32.0f * pm_aircontrol * dot * dot * frametime;
if( dot > 0 ) {
// we can't change direction while slowing down
velocity = velocity * speed + wishdir * k;
velocity.normalize();
}
velocity.x *= speed;
velocity.y *= speed;
velocity.z = zspeed;
}
Vec3 AddCurrents( Vec3 wishvel ) {
//
// account for ladders
//
if( ladder && abs( velocity[2] ) <= DEFAULT_LADDERSPEED ) {
if( ( playerState.viewAngles[PITCH] <= -15 ) && ( forwardPush > 0 ) ) {
wishvel.z = DEFAULT_LADDERSPEED;
} else if( ( playerState.viewAngles[PITCH] >= 15 ) && ( forwardPush > 0 ) ) {
wishvel.z = -DEFAULT_LADDERSPEED;
} else if( upPush > 0 ) {
wishvel.z = DEFAULT_LADDERSPEED;
} else if( upPush < 0 ) {
wishvel.z = -DEFAULT_LADDERSPEED;
} else {
wishvel.z = 0;
}
// limit horizontal speed when on a ladder
wishvel.x = Boundf( -25.0f, wishvel.x, 25.0f );
wishvel.y = Boundf( -25.0f, wishvel.y, 25.0f );
}
return wishvel;
}
/*
* WaterMove
*/
void WaterMove() {
int i;
Vec3 wishvel;
float wishspeed;
Vec3 wishdir;
// user intentions
wishvel = forward * forwardPush + right * sidePush;
if( forwardPush == 0 && sidePush == 0 && upPush == 0 ) {
wishvel.z -= 60; // drift towards bottom
} else {
wishvel.z += upPush;
}
wishvel = AddCurrents( wishvel );
wishdir = wishvel;
wishspeed = wishdir.normalize();
if( wishspeed > maxPlayerSpeed ) {
wishspeed = maxPlayerSpeed / wishspeed;
wishvel *= wishspeed;
wishspeed = maxPlayerSpeed;
}
wishspeed *= 0.5;
Accelerate( wishdir, wishspeed, pm_wateraccelerate );
StepSlideMove();
}
/*
* Move -- Kurim
*/
void Move() {
int i;
Vec3 wishvel;
float fmove, smove;
Vec3 wishdir;
float wishspeed;
float maxspeed;
float accel;
float wishspeed2;
fmove = forwardPush;
smove = sidePush;
wishvel = forward * fmove + right * smove;
wishvel.z = 0;
wishvel = AddCurrents( wishvel );
wishdir = wishvel;
wishspeed = wishdir.normalize();
// clamp to server defined max speed
if( pmoveState.stats[PM_STAT_CROUCHTIME] != 0 ) {
maxspeed = maxCrouchedSpeed;
} else if( ( cmd.buttons & BUTTON_WALK ) != 0 && ( pmoveState.stats[PM_STAT_FEATURES] & PMFEAT_WALK ) != 0 ) {
maxspeed = maxWalkSpeed;
} else {
maxspeed = maxPlayerSpeed;
}
if( wishspeed > maxspeed ) {
wishspeed = maxspeed / wishspeed;
wishvel *= wishspeed;
wishspeed = maxspeed;
}
if( ladder ) {
Accelerate( wishdir, wishspeed, pm_accelerate );
if( wishvel.z == 0.0f ) {
if( velocity.z > 0 ) {
velocity.z -= pmoveState.gravity * frametime;
if( velocity.z < 0 ) {
velocity.z = 0;
}
} else {
velocity.z += pmoveState.gravity * frametime;
if( velocity.z > 0 ) {
velocity.z = 0;
}
}
}
StepSlideMove();
} else if( pm.groundEntity != -1 ) {
// walking on ground
if( velocity.z > 0 ) {
velocity.z = 0; //!!! this is before the accel
}
Accelerate( wishdir, wishspeed, pm_accelerate );
// fix for negative trigger_gravity fields
if( pmoveState.gravity > 0 ) {
if( velocity.z > 0 ) {
velocity.z = 0;
}
} else {
velocity.z -= pmoveState.gravity * frametime;
}
if( velocity.x == 0.0f && velocity.y == 0.0f ) {
return;
}
StepSlideMove();
} else if( ( pmoveState.stats[PM_STAT_FEATURES] & PMFEAT_AIRCONTROL ) != 0
&& ( pmoveState.stats[PM_STAT_FEATURES] & PMFEAT_FWDBUNNY ) == 0 ) {
// Air Control
wishspeed2 = wishspeed;
if( velocity * wishdir < 0
&& ( pm_flags & PMF_WALLJUMPING ) == 0
&& ( pmoveState.stats[PM_STAT_KNOCKBACK] <= 0 ) ) {
accel = pm_airdecelerate;
} else {
accel = pm_airaccelerate;
}
// ch : remove knockback test here
if( ( pm_flags & PMF_WALLJUMPING ) != 0
/* || ( pmoveState.stats[PM_STAT_KNOCKBACK] > 0 ) */ ) {
accel = 0; // no stopmove while walljumping
}
if( ( smove > 0 || smove < 0 ) && ( fmove == 0 ) && ( pmoveState.stats[PM_STAT_KNOCKBACK] <= 0 ) ) {
if( wishspeed > pm_wishspeed ) {
wishspeed = pm_wishspeed;
}
accel = pm_strafebunnyaccel;
}
// Air control
Accelerate( wishdir, wishspeed, accel );
if( pm_aircontrol > 0 && ( pm_flags & PMF_WALLJUMPING ) == 0 && ( pmoveState.stats[PM_STAT_KNOCKBACK] <= 0 ) ) { // no air ctrl while wjing
Aircontrol( wishdir, wishspeed2 );
}
// add gravity
velocity.z -= pmoveState.gravity * frametime;
StepSlideMove();
} else { // air movement (old school)
bool inhibit = false;
bool accelerating, decelerating;
accelerating = ( velocity * wishdir ) > 0.0f ? true : false;
decelerating = ( velocity * wishdir ) < -0.0f ? true : false;
if( ( pm_flags & PMF_WALLJUMPING ) != 0 &&
( pmoveState.stats[PM_STAT_WJTIME] >= ( PM_WALLJUMP_TIMEDELAY - PM_AIRCONTROL_BOUNCE_DELAY ) ) ) {
inhibit = true;
}
if( ( pm_flags & PMF_DASHING ) != 0 &&
( pmoveState.stats[PM_STAT_DASHTIME] >= ( PM_DASHJUMP_TIMEDELAY - PM_AIRCONTROL_BOUNCE_DELAY ) ) ) {
inhibit = true;
}
if( ( pmoveState.stats[PM_STAT_FEATURES] & PMFEAT_FWDBUNNY ) == 0 ||
pmoveState.stats[PM_STAT_FWDTIME] > 0 ) {
inhibit = true;
}
// ch : remove this because of the knockback 'bug'?
/*
if( pmoveState.stats[PM_STAT_KNOCKBACK] > 0 )
inhibit = true;
*/
// (aka +fwdbunny) pressing forward or backward but not pressing strafe and not dashing
if( accelerating && !inhibit && smove == 0 && fmove != 0 ) {
AirAccelerate( wishdir, wishspeed );
Aircontrol( wishdir, wishspeed );
} else { // strafe running
bool aircontrol = true;
wishspeed2 = wishspeed;
if( decelerating &&
( pm_flags & PMF_WALLJUMPING ) == 0 ) {
accel = pm_airdecelerate;
} else {
accel = pm_airaccelerate;
}
// ch : knockback out
if( ( pm_flags & PMF_WALLJUMPING ) != 0
/* || ( pmoveState.stats[PM_STAT_KNOCKBACK] > 0 ) */) {
accel = 0; // no stop-move while wall-jumping
aircontrol = false;
}
if( ( pm_flags & PMF_DASHING ) != 0 &&
( pmoveState.stats[PM_STAT_DASHTIME] >= ( PM_DASHJUMP_TIMEDELAY - PM_AIRCONTROL_BOUNCE_DELAY ) ) ) {
aircontrol = false;
}
if( ( pmoveState.stats[PM_STAT_FEATURES] & PMFEAT_AIRCONTROL ) == 0 ) {
aircontrol = false;
}
// +strafe bunnyhopping
if( aircontrol && smove != 0 && fmove == 0 ) {
if( wishspeed > pm_wishspeed ) {
wishspeed = pm_wishspeed;
}
Accelerate( wishdir, wishspeed, pm_strafebunnyaccel );
Aircontrol( wishdir, wishspeed2 );
} else { // standard movement (includes strafejumping)
Accelerate( wishdir, wishspeed, accel );
}
}
// add gravity
velocity.z -= pmoveState.gravity * frametime;
StepSlideMove();
}
}
/*
* If the player hull point one-quarter unit down is solid, the player is on ground
*/
void GroundTrace( Trace &out trace ) {
Vec3 mins, maxs;
if( pm.skipCollision ) {
return;
}
// see if standing on something solid
Vec3 point( origin.x, origin.y, origin.z - 0.25 );
trace.doTrace( origin, pm_mins, pm_maxs, point, playerState.POVnum, pm.contentMask );
}
void UnstickPosition( Trace &out trace ) {
int j;
Vec3 testOrigin;
if( pm.skipCollision ) {
return;
}
if( pmoveState.pm_type == PM_SPECTATOR ) {
return;
}
// try all combinations
for( j = 0; j < 8; j++ ) {
testOrigin = origin;
testOrigin.x += ( j & 1 ) != 0 ? -1.0f : 1.0f;
testOrigin.y += ( j & 2 ) != 0 ? -1.0f : 1.0f;
testOrigin.z += ( j & 4 ) != 0 ? -1.0f : 1.0f;
trace.doTrace( testOrigin, pm_mins, pm_maxs, testOrigin, playerState.POVnum, pm.contentMask );
if( !trace.allSolid ) {
origin = testOrigin;
GroundTrace( trace );
return;
}
}
// go back to the last position
origin = previousOrigin;
}
void CategorizePosition() {
if( velocity.z > 180 ) { // !!ZOID changed from 100 to 180 (ramp accel)
pm_flags &= ~PMF_ON_GROUND;
pm.groundEntity = -1;
} else {
Trace trace;
// see if standing on something solid
GroundTrace( trace );
if( trace.allSolid ) {
// try to unstick position
UnstickPosition( trace );
}
groundPlaneNormal = trace.planeNormal;
groundPlaneDist = trace.planeDist;
groundSurfFlags = trace.surfFlags;
groundContents = trace.contents;
if( ( trace.fraction == 1.0f ) || ( !IsWalkablePlane( trace.planeNormal ) && !trace.startSolid ) ) {
pm.groundEntity = -1;
pm_flags &= ~PMF_ON_GROUND;
} else {
pm.groundEntity = trace.entNum;
pm.groundPlaneNormal = trace.planeNormal;
pm.groundPlaneDist = trace.planeDist;
pm.groundSurfFlags = trace.surfFlags;
pm.groundContents = trace.contents;
// hitting solid ground will end a waterjump
if( ( pm_flags & PMF_TIME_WATERJUMP ) != 0 ) {
pm_flags &= ~( PMF_TIME_WATERJUMP | PMF_TIME_LAND | PMF_TIME_TELEPORT );
pmoveState.pm_time = 0;
}
if( ( pm_flags & PMF_ON_GROUND ) == 0 ) { // just hit the ground
pm_flags |= PMF_ON_GROUND;
}
}
if( trace.fraction < 1.0 ) {
pm.addTouchEnt( trace.entNum );
}
}
//
// get waterlevel, accounting for ducking
//
pm.waterLevel = 0;
pm.waterType = 0;
float sample2 = playerState.viewHeight - pm_mins.z;
float sample1 = sample2 / 2.0f;
Vec3 point = origin;
point.z = origin.z + pm_mins.z + 1.0f;
int cont = GS::PointContents( point );
if( ( cont & MASK_WATER ) != 0 ) {
pm.waterType = cont;
pm.waterLevel = 1;
point.z = origin.z + pm_mins.z + sample1;
cont = GS::PointContents( point );
if( ( cont & MASK_WATER ) != 0 ) {
pm.waterLevel = 2;
point.z = origin.z + pm_mins.z + sample2;
cont = GS::PointContents( point );
if( ( cont & MASK_WATER ) != 0 ) {
pm.waterLevel = 3;
}
}
}
}
void ClearDash() {
pm_flags &= ~PMF_DASHING;
pmoveState.stats[PM_STAT_DASHTIME] = 0;
}
void ClearWallJump() {
pm_flags &= ~(PMF_WALLJUMPING|PMF_WALLJUMPCOUNT);
pmoveState.stats[PM_STAT_WJTIME] = 0;
}
void ClearStun() {
pmoveState.stats[PM_STAT_STUN] = 0;
}
void ClipVelocityAgainstGround( void ) {
// clip against the ground when jumping if moving that direction
if( groundPlaneNormal.z > 0 && velocity.z < 0 ) {
Vec3 n2( groundPlaneNormal.x, groundPlaneNormal.y, 0.0f );
Vec3 v2( velocity.x, velocity.y, 0.0f );
if( n2 * v2 > 0.0f ) {
velocity = GS::ClipVelocity( velocity, groundPlaneNormal, PM_OVERBOUNCE );
}
}
}
// Walljump wall availability check
// nbTestDir is the number of directions to test around the player
// maxZnormal is the max Z value of the normal of a poly to consider it a wall
// normal becomes a pointer to the normal of the most appropriate wall
Vec3 PlayerTouchWall( int nbTestDir, float maxZnormal ) {
int i;
Trace trace;
Vec3 zero, dir, mins, maxs;
bool alternate;
float r, d, dx, dy, m;
// if there is nothing at all within the checked area, we can skip the individual checks
// this optimization must always overapproximate the combination of those checks
mins.x = pm_mins.x - pm_maxs.x;
mins.y = pm_mins.y - pm_maxs.y;
maxs.x = pm_maxs.x + pm_maxs.x;
maxs.y = pm_maxs.y + pm_maxs.y;
if( velocity[0] > 0 ) {
maxs.x += velocity.x * 0.015f;
} else {
mins.x += velocity.x * 0.015f;
}
if( velocity[1] > 0 ) {
maxs.y += velocity.y * 0.015f;
} else {
mins.y += velocity.y * 0.015f;
}
mins.z = maxs.z = 0;
trace.doTrace( origin, mins, maxs, origin, playerState.POVnum, pm.contentMask );
if( !trace.allSolid && trace.fraction == 1.0f ) {
return Vec3();
}
// determine the primary direction
if( sidePush > 0 ) {
r = -180.0f / 2.0f;
} else if( sidePush < 0 ) {
r = 180.0f / 2.0f;
} else if( forwardPush > 0 ) {
r = 0.0f;
} else {
r = 180.0f;
}
alternate = sidePush == 0 || forwardPush == 0;
d = 0.0f; // current distance from the primary direction
for( i = 0; i < nbTestDir; i++ ) {
if( i != 0 ) {
if( alternate ) {
r += 180.0f; // switch front and back
}
if( ( !alternate && i % 2 == 0 ) || ( alternate && i % 4 == 0 ) ) { // switch from left to right
r -= 2 * d;
} else if( !alternate || ( alternate && i % 4 == 2 ) ) { // switch from right to left and move further away
r += d;
d += 360.0f / nbTestDir;
r += d;
}
}
// determine the relative offsets from the origin
dx = cos( deg2rad( playerState.viewAngles[YAW] + r ) );
dy = sin( deg2rad( playerState.viewAngles[YAW] + r ) );
// project onto the player box
if( dx == 0.0f ) {
m = pm_maxs[1];
} else if( dy == 0.0f ) {
m = pm_maxs[0];
} else if( abs( dx / pm_maxs.x ) > abs( dy / pm_maxs.y ) ) {
m = abs( pm_maxs.x / dx );
} else {
m = abs( pm_maxs.y / dy );
}
// allow a gap between the player and the wall
m += pm_maxs.x;
dir.x = origin.x + dx * m + velocity.x * 0.015f;
dir.y = origin.y + dy * m + velocity.y * 0.015f;
dir.z = origin.z;
trace.doTrace( origin, zero, zero, dir, playerState.POVnum, pm.contentMask );
if( trace.allSolid ) {
return Vec3();
}
if( trace.fraction == 1.0f ) {
continue; // no wall in this direction
}
if( ( trace.surfFlags & ( SURF_SKY | SURF_NOWALLJUMP ) ) != 0 ) {
continue;
}
if( trace.entNum > 0 && GS::GetEntityState( trace.entNum ).type == ET_PLAYER ) {
continue;
}
if( trace.fraction > 0.0f && abs( trace.planeNormal.z ) < maxZnormal ) {
return trace.planeNormal;
}
}
return Vec3();
}
/*
* CheckJump
*/
void CheckJump() {
if( upPush < 10 ) {
// not holding jump
if( ( pmoveState.stats[PM_STAT_FEATURES] & PMFEAT_CONTINOUSJUMP ) == 0 ) {
pm_flags &= ~PMF_JUMP_HELD;
}
return;
}
if( ( pmoveState.stats[PM_STAT_FEATURES] & PMFEAT_CONTINOUSJUMP ) == 0 ) {
// must wait for jump to be released
if( ( pm_flags & PMF_JUMP_HELD ) != 0 ) {
return;
}
}
if( pmoveState.pm_type != PM_NORMAL ) {
return;
}
if( pm.waterLevel >= 2 ) { // swimming, not jumping
pm.groundEntity = -1;
return;
}
if( pm.groundEntity == -1 ) {
return;
}
if( ( pmoveState.stats[PM_STAT_FEATURES] & PMFEAT_JUMP ) == 0 ) {
return;
}
if( ( pmoveState.stats[PM_STAT_FEATURES] & PMFEAT_CONTINOUSJUMP ) == 0 ) {
pm_flags |= PMF_JUMP_HELD;
}
pm.groundEntity = -1;
ClipVelocityAgainstGround();
if( velocity.z > 100 ) {
GS::PredictedEvent( playerState.POVnum, EV_DOUBLEJUMP, 0 );
velocity.z += jumpPlayerSpeed;
} else if( velocity[2] > 0 ) {
GS::PredictedEvent( playerState.POVnum, EV_JUMP, 0 );
velocity.z += jumpPlayerSpeed;
} else {
GS::PredictedEvent( playerState.POVnum, EV_JUMP, 0 );
velocity.z = jumpPlayerSpeed;
}
// remove wj count
pm_flags &= ~PMF_JUMPPAD_TIME;
ClearDash();
ClearWallJump();
}
void CheckDash() {
float upspeed;
Vec3 dashdir;
if( ( cmd.buttons & BUTTON_SPECIAL ) == 0 ) {
pm_flags &= ~PMF_SPECIAL_HELD;
}
if( pmoveState.pm_type != PM_NORMAL ) {
return;
}
if( pmoveState.stats[PM_STAT_DASHTIME] > 0 ) {
return;
}
if( pmoveState.stats[PM_STAT_KNOCKBACK] > 0 ) { // can not start a new dash during knockback time
return;
}
if( ( cmd.buttons & BUTTON_SPECIAL ) != 0 && pm.groundEntity != -1
&& ( pmoveState.stats[PM_STAT_FEATURES] & PMFEAT_DASH ) != 0 ) {
if( ( pm_flags & PMF_SPECIAL_HELD ) != 0 ) {
return;
}
pm_flags &= ~PMF_JUMPPAD_TIME;
ClearWallJump();
pm_flags |= PMF_DASHING | PMF_SPECIAL_HELD;
pm.groundEntity = -1;
ClipVelocityAgainstGround();
if( velocity.z <= 0.0f ) {
upspeed = pm_dashupspeed;
} else {
upspeed = pm_dashupspeed + velocity.z;
}
// ch : we should do explicit forwardPush here, and ignore sidePush ?
dashdir = flatforward * forwardPush + sidePush * right;
dashdir.z = 0.0;
if( dashdir.length() < 0.01f ) { // if not moving, dash like a "forward dash"
dashdir = flatforward;
} else {
dashdir.normalize();
}
float actual_velocity = HorizontalSpeed();
if( actual_velocity <= dashPlayerSpeed ) {
dashdir *= dashPlayerSpeed;
} else {
dashdir *= actual_velocity;