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Diffstat (limited to 'src/cl_input.c')
-rw-r--r-- | src/cl_input.c | 1099 |
1 files changed, 1099 insertions, 0 deletions
diff --git a/src/cl_input.c b/src/cl_input.c new file mode 100644 index 0000000..8e65fb8 --- /dev/null +++ b/src/cl_input.c @@ -0,0 +1,1099 @@ +/* +Copyright (C) 1997-2001 Id Software, Inc. + +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. + +*/ +// cl.input.c -- builds an intended movement command to send to the server + +#include "cl_local.h" +#include "in_public.h" +#include "vid_public.h" +#include "vid_local.h" +#if USE_LIRC +#include "in_lirc.h" +#endif + +static cvar_t *cl_nodelta; +static cvar_t *cl_maxpackets; +static cvar_t *cl_packetdup; +static cvar_t *cl_fuzzhack; +#ifdef _DEBUG +static cvar_t *cl_showpackets; +#endif +static cvar_t *cl_instantpacket; + +static cvar_t *m_filter; +static cvar_t *m_accel; +static cvar_t *m_autosens; + +static cvar_t *cl_upspeed; +static cvar_t *cl_forwardspeed; +static cvar_t *cl_sidespeed; +static cvar_t *cl_yawspeed; +static cvar_t *cl_pitchspeed; +static cvar_t *cl_run; +static cvar_t *cl_anglespeedkey; + +static cvar_t *freelook; +static cvar_t *lookspring; +static cvar_t *lookstrafe; +static cvar_t *sensitivity; + +static cvar_t *m_pitch; +static cvar_t *m_yaw; +static cvar_t *m_forward; +static cvar_t *m_side; + +/* +=============================================================================== + +INPUT SUBSYSTEM + +=============================================================================== +*/ + +typedef struct { + qboolean initialized; + inputAPI_t api; + qboolean modified; + unsigned lastMotion; + int hideCursor; +} in_state_t; + +static in_state_t input; + +static cvar_t *in_enable; +#if USE_DINPUT +static cvar_t *in_direct; +#endif + +#if USE_DINPUT +void DI_FillAPI( inputAPI_t *api ); +#endif + +/* +============ +IN_Activate +============ +*/ +void IN_Activate( void ) { + grab_t grab; + + if( !input.initialized ) { + return; + } + + input.hideCursor = 0; + if( cls.active != ACT_ACTIVATED ) { + grab = IN_FREE; + } else if( scr_glconfig.flags & QVF_FULLSCREEN ) { + grab = IN_GRAB; + } else if( cls.key_dest & KEY_MENU ) { + grab = IN_SHOW; + } else if( ( cls.key_dest & KEY_CONSOLE ) || sv_paused->integer || + /*cls.demo.playback || cl.frame.ps.pmove.pm_type == PM_FREEZE ||*/ + cls.state < ca_connected ) + { + grab = IN_HIDE; + if( !input.hideCursor ) { + input.hideCursor = 1; + input.lastMotion = com_localTime - 1000; + } + } else { + grab = IN_GRAB; + } + + input.api.Grab( grab ); +} + +/* +============ +IN_Frame +============ +*/ +void IN_Frame( void ) { + if( input.modified ) { + Cbuf_AddText( &cmd_buffer, "in_restart\n" ); + input.modified = qfalse; + } else if( input.initialized ) { + if( input.api.GetEvents ) { + input.api.GetEvents(); + } + if( input.hideCursor == 2 && com_localTime - input.lastMotion >= 1000 ) { + input.api.Grab( IN_HIDE ); + input.hideCursor = 1; + } + } +#if USE_LIRC + Lirc_GetEvents(); +#endif +} + +/* +================ +IN_MouseEvent +================ +*/ +void IN_MouseEvent( int x, int y ) { + input.lastMotion = com_localTime; + if( input.hideCursor == 1 ) { + input.api.Grab( IN_SHOW ); + input.hideCursor = 2; + } +#if USE_UI + UI_MouseEvent( x, y ); +#endif +} + +/* +================ +IN_WarpMouse +================ +*/ +void IN_WarpMouse( int x, int y ) { + if( input.initialized && input.api.Warp ) { + input.api.Warp( x, y ); + } +} + + +/* +============ +IN_Restart_f +============ +*/ +static void IN_Restart_f( void ) { + IN_Shutdown(); + IN_Init(); +} + +/* +============ +IN_Shutdown +============ +*/ +void IN_Shutdown( void ) { + if( input.initialized ) { +#if USE_DINPUT + in_direct->changed = NULL; +#endif + input.api.Shutdown(); + memset( &input, 0, sizeof( input ) ); + } +#if USE_LIRC + Lirc_Shutdown(); +#endif +} + +static void in_param_changed( cvar_t *self ) { + input.modified = qtrue; +} + +/* +============ +IN_Init +============ +*/ +void IN_Init( void ) { + qboolean ret = qfalse; + +#if USE_LIRC + Lirc_Init(); +#endif + + in_enable = Cvar_Get( "in_enable", "1", 0 ); + in_enable->changed = in_param_changed; + if( !in_enable->integer ) { + Com_Printf( "Mouse input disabled.\n" ); + return; + } + +#if USE_DINPUT + in_direct = Cvar_Get( "in_direct", "1", 0 ); + if( in_direct->integer ) { + DI_FillAPI( &input.api ); + ret = input.api.Init(); + if( !ret ) { + Cvar_Set( "in_direct", "0" ); + } + } +#endif + if( !ret ) { + VID_FillInputAPI( &input.api ); + ret = input.api.Init(); + if( !ret ) { + Cvar_Set( "in_enable", "0" ); + return; + } + } + +#if USE_DINPUT + in_direct->changed = in_param_changed; +#endif + + input.initialized = qtrue; + + IN_Activate(); +} + + +/* +=============================================================================== + +KEY BUTTONS + +Continuous button event tracking is complicated by the fact that two different +input sources (say, mouse button 1 and the control key) can both press the +same button, but the button should only be released when both of the +pressing key have been released. + +When a key event issues a button command (+forward, +attack, etc), it appends +its key number as a parameter to the command so it can be matched up with +the release. + +state bit 0 is the current state of the key +state bit 1 is edge triggered on the up to down transition +state bit 2 is edge triggered on the down to up transition + + +Key_Event (int key, qboolean down, unsigned time); + + +mlook src time + +=============================================================================== +*/ + +typedef struct kbutton_s { + int down[2]; // key nums holding it down + unsigned downtime; // msec timestamp + unsigned msec; // msec down this frame + int state; +} kbutton_t; + +static kbutton_t in_klook; +static kbutton_t in_left, in_right, in_forward, in_back; +static kbutton_t in_lookup, in_lookdown, in_moveleft, in_moveright; +static kbutton_t in_strafe, in_speed, in_use, in_attack; +static kbutton_t in_up, in_down; + +static int in_impulse; +static qboolean in_mlooking; + +static void KeyDown (kbutton_t *b) { + int k; + char *c; + + c = Cmd_Argv(1); + if (c[0]) + k = atoi(c); + else + k = -1; // typed manually at the console for continuous down + + if (k == b->down[0] || k == b->down[1]) + return; // repeating key + + if (!b->down[0]) + b->down[0] = k; + else if (!b->down[1]) + b->down[1] = k; + else { + Com_WPrintf ("Three keys down for a button!\n"); + return; + } + + if (b->state & 1) + return; // still down + + // save timestamp + c = Cmd_Argv(2); + b->downtime = atoi(c); + if (!b->downtime) { + b->downtime = com_eventTime - 100; + } + + b->state |= 1 + 2; // down + impulse down +} + +static void KeyUp (kbutton_t *b) { + int k; + char *c; + unsigned uptime; + + c = Cmd_Argv(1); + if (c[0]) + k = atoi(c); + else { + // typed manually at the console, assume for unsticking, so clear all + b->down[0] = b->down[1] = 0; + b->state = 0; // impulse up + return; + } + + if (b->down[0] == k) + b->down[0] = 0; + else if (b->down[1] == k) + b->down[1] = 0; + else + return; // key up without coresponding down (menu pass through) + if (b->down[0] || b->down[1]) + return; // some other key is still holding it down + + if (!(b->state & 1)) + return; // still up (this should not happen) + + // save timestamp + c = Cmd_Argv(2); + uptime = atoi(c); + if( !uptime ) { + b->msec += 10; + } else if( uptime > b->downtime ) { + b->msec += uptime - b->downtime; + } + + b->state &= ~1; // now up +} + +static void KeyClear( kbutton_t *b ) { + b->msec = 0; + b->state &= ~2; // clear impulses + if( b->state & 1 ) { + b->downtime = com_eventTime; // still down + } +} + +static void IN_KLookDown( void ) { KeyDown( &in_klook ); } +static void IN_KLookUp( void ) { KeyUp( &in_klook ); } +static void IN_UpDown( void ) { KeyDown( &in_up ); } +static void IN_UpUp( void ) { KeyUp( &in_up ); } +static void IN_DownDown( void ) { KeyDown( &in_down ); } +static void IN_DownUp( void ) { KeyUp( &in_down ); } +static void IN_LeftDown( void ) { KeyDown( &in_left ); } +static void IN_LeftUp( void ) { KeyUp( &in_left ); } +static void IN_RightDown( void ) { KeyDown( &in_right ); } +static void IN_RightUp( void ) { KeyUp( &in_right ); } +static void IN_ForwardDown( void ) { KeyDown( &in_forward ); } +static void IN_ForwardUp( void ) { KeyUp( &in_forward ); } +static void IN_BackDown( void ) { KeyDown( &in_back ); } +static void IN_BackUp( void ) { KeyUp( &in_back ); } +static void IN_LookupDown( void ) { KeyDown( &in_lookup ); } +static void IN_LookupUp( void ) { KeyUp( &in_lookup ); } +static void IN_LookdownDown( void ) { KeyDown( &in_lookdown ); } +static void IN_LookdownUp( void ) { KeyUp( &in_lookdown ); } +static void IN_MoveleftDown( void ) { KeyDown( &in_moveleft ); } +static void IN_MoveleftUp( void ) { KeyUp( &in_moveleft ); } +static void IN_MoverightDown( void ) { KeyDown( &in_moveright ); } +static void IN_MoverightUp( void ) { KeyUp( &in_moveright ); } +static void IN_SpeedDown( void ) { KeyDown( &in_speed ); } +static void IN_SpeedUp( void ) { KeyUp( &in_speed ); } +static void IN_StrafeDown( void ) { KeyDown( &in_strafe ); } +static void IN_StrafeUp( void ) { KeyUp( &in_strafe ); } +static void IN_AttackDown( void ) { + KeyDown( &in_attack ); + if( cl_instantpacket->integer ) { + cl.sendPacketNow = qtrue; + } +} +static void IN_AttackUp( void ) { KeyUp( &in_attack ); } +static void IN_UseDown ( void ) { + KeyDown( &in_use ); + if( cl_instantpacket->integer ) { + cl.sendPacketNow = qtrue; + } +} +static void IN_UseUp ( void ) { KeyUp( &in_use ); } + +static void IN_Impulse ( void ) { + in_impulse = atoi( Cmd_Argv( 1 ) ); +} + +static void IN_CenterView( void ) { + cl.viewangles[PITCH] = -SHORT2ANGLE( cl.frame.ps.pmove.delta_angles[PITCH] ); +} + +static void IN_MLookDown( void ) { + in_mlooking = qtrue; +} + +static void IN_MLookUp( void ) { + in_mlooking = qfalse; + + if( !freelook->integer && lookspring->integer ) + IN_CenterView(); +} + +/* +=============== +CL_KeyState + +Returns the fraction of the frame that the key was down +=============== +*/ +static float CL_KeyState( kbutton_t *key ) { + float val; + unsigned msec = key->msec; + + if( key->state & 1 ) { + // still down + if( com_eventTime > key->downtime ) { + msec += com_eventTime - key->downtime; + } + } + + if( !cl.cmd.msec ) { + return 0; + } + val = ( float )msec / cl.cmd.msec; + + clamp( val, 0, 1 ); + + return val; +} + +//========================================================================== + + +/* +================ +CL_MouseMove +================ +*/ +static void CL_MouseMove( void ) { + static int old_dx, old_dy; + int dx, dy; + float mx, my; + float speed; + + if( !input.initialized ) { + return; + } + if( cls.key_dest & (KEY_MENU|KEY_CONSOLE) ) { + return; + } + if( !input.api.GetMotion( &dx, &dy ) ) { + return; + } + + if( m_filter->integer ) { + mx = ( dx + old_dx ) * 0.5f; + my = ( dy + old_dy ) * 0.5f; + } else { + mx = dx; + my = dy; + } + + old_dx = dx; + old_dy = dy; + + if( !mx && !my ) { + return; + } + + Cvar_ClampValue( m_accel, 0, 1 ); + + speed = sqrt( mx * mx + my * my ); + speed = sensitivity->value + speed * m_accel->value; + + mx *= speed; + my *= speed; + + if( m_autosens->integer ) { + mx *= cl.refdef.fov_x / 90.0f; + my *= cl.refdef.fov_y / V_CalcFov( 90.0f, cl.refdef.width, cl.refdef.height ); + } + +// add mouse X/Y movement to cmd + if( ( in_strafe.state & 1 ) || ( lookstrafe->integer && !in_mlooking ) ) { + cl.cmd.sidemove += m_side->value * mx; + } else { + cl.viewangles[YAW] -= m_yaw->value * mx; + } + + if( ( in_mlooking || freelook->integer ) && !( in_strafe.state & 1 ) ) { + cl.viewangles[PITCH] += m_pitch->value * my; + } else { + cl.cmd.forwardmove -= m_forward->value * my; + } +} + + +/* +================ +CL_AdjustAngles + +Moves the local angle positions +================ +*/ +static void CL_AdjustAngles( int msec ) { + float speed; + + if( in_speed.state & 1 ) + speed = msec * cl_anglespeedkey->value * 0.001f; + else + speed = msec * 0.001f; + + if( !( in_strafe.state & 1 ) ) { + cl.viewangles[YAW] -= speed*cl_yawspeed->value*CL_KeyState(&in_right); + cl.viewangles[YAW] += speed*cl_yawspeed->value*CL_KeyState(&in_left); + } + if( in_klook.state & 1 ) { + cl.viewangles[PITCH] -= speed*cl_pitchspeed->value*CL_KeyState(&in_forward); + cl.viewangles[PITCH] += speed*cl_pitchspeed->value*CL_KeyState(&in_back); + } + + cl.viewangles[PITCH] -= speed*cl_pitchspeed->value*CL_KeyState(&in_lookup); + cl.viewangles[PITCH] += speed*cl_pitchspeed->value*CL_KeyState(&in_lookdown); +} + +/* +================ +CL_BaseMove + +Build the intended movement vector +================ +*/ +static void CL_BaseMove( vec3_t move ) { + float speed; + + if( in_strafe.state & 1 ) { + move[1] += cl_sidespeed->value * CL_KeyState( &in_right ); + move[1] -= cl_sidespeed->value * CL_KeyState( &in_left ); + } + + move[1] += cl_sidespeed->value * CL_KeyState( &in_moveright ); + move[1] -= cl_sidespeed->value * CL_KeyState( &in_moveleft ); + + move[2] += cl_upspeed->value * CL_KeyState( &in_up ); + move[2] -= cl_upspeed->value * CL_KeyState( &in_down ); + + if( !( in_klook.state & 1 ) ) { + move[0] += cl_forwardspeed->value * CL_KeyState( &in_forward ); + move[0] -= cl_forwardspeed->value * CL_KeyState( &in_back ); + } + +// adjust for speed key / running + if( ( in_speed.state & 1 ) ^ cl_run->integer ) { + VectorScale( move, 2, move ); + } + +// clamp to server defined max speed + speed = cl.pmp.maxspeed; + clamp( move[0], -speed, speed ); + clamp( move[1], -speed, speed ); + clamp( move[2], -speed, speed ); +} + +static void CL_ClampPitch( void ) { + float pitch; + + pitch = SHORT2ANGLE( cl.frame.ps.pmove.delta_angles[PITCH] ); + if (pitch > 180) + pitch -= 360; + + if (cl.viewangles[PITCH] + pitch < -360) + cl.viewangles[PITCH] += 360; // wrapped + if (cl.viewangles[PITCH] + pitch > 360) + cl.viewangles[PITCH] -= 360; // wrapped + + if (cl.viewangles[PITCH] + pitch > 89) + cl.viewangles[PITCH] = 89 - pitch; + if (cl.viewangles[PITCH] + pitch < -89) + cl.viewangles[PITCH] = -89 - pitch; +} + +/* +================= +CL_UpdateCmd +================= +*/ +void CL_UpdateCmd( int msec ) { + VectorClear( cl.move ); + + if( sv_paused->integer ) { + return; + } + + // add to milliseconds of time to apply the move + cl.cmd.msec += msec; + + // adjust viewangles + CL_AdjustAngles( msec ); + + // get basic movement from keyboard + CL_BaseMove( cl.move ); + + // allow mice or other external controllers to add to the move + CL_MouseMove(); + + CL_ClampPitch(); + + cl.cmd.angles[0] = ANGLE2SHORT( cl.viewangles[0] ); + cl.cmd.angles[1] = ANGLE2SHORT( cl.viewangles[1] ); + cl.cmd.angles[2] = ANGLE2SHORT( cl.viewangles[2] ); +} + + +/* +============ +CL_RegisterInput +============ +*/ +void CL_RegisterInput( void ) { + Cmd_AddCommand ("centerview",IN_CenterView); + + Cmd_AddCommand ("+moveup",IN_UpDown); + Cmd_AddCommand ("-moveup",IN_UpUp); + Cmd_AddCommand ("+movedown",IN_DownDown); + Cmd_AddCommand ("-movedown",IN_DownUp); + Cmd_AddCommand ("+left",IN_LeftDown); + Cmd_AddCommand ("-left",IN_LeftUp); + Cmd_AddCommand ("+right",IN_RightDown); + Cmd_AddCommand ("-right",IN_RightUp); + Cmd_AddCommand ("+forward",IN_ForwardDown); + Cmd_AddCommand ("-forward",IN_ForwardUp); + Cmd_AddCommand ("+back",IN_BackDown); + Cmd_AddCommand ("-back",IN_BackUp); + Cmd_AddCommand ("+lookup", IN_LookupDown); + Cmd_AddCommand ("-lookup", IN_LookupUp); + Cmd_AddCommand ("+lookdown", IN_LookdownDown); + Cmd_AddCommand ("-lookdown", IN_LookdownUp); + Cmd_AddCommand ("+strafe", IN_StrafeDown); + Cmd_AddCommand ("-strafe", IN_StrafeUp); + Cmd_AddCommand ("+moveleft", IN_MoveleftDown); + Cmd_AddCommand ("-moveleft", IN_MoveleftUp); + Cmd_AddCommand ("+moveright", IN_MoverightDown); + Cmd_AddCommand ("-moveright", IN_MoverightUp); + Cmd_AddCommand ("+speed", IN_SpeedDown); + Cmd_AddCommand ("-speed", IN_SpeedUp); + Cmd_AddCommand ("+attack", IN_AttackDown); + Cmd_AddCommand ("-attack", IN_AttackUp); + Cmd_AddCommand ("+use", IN_UseDown); + Cmd_AddCommand ("-use", IN_UseUp); + Cmd_AddCommand ("impulse", IN_Impulse); + Cmd_AddCommand ("+klook", IN_KLookDown); + Cmd_AddCommand ("-klook", IN_KLookUp); + Cmd_AddCommand( "+mlook", IN_MLookDown ); + Cmd_AddCommand( "-mlook", IN_MLookUp ); + + Cmd_AddCommand( "in_restart", IN_Restart_f ); + + cl_nodelta = Cvar_Get ("cl_nodelta", "0", 0); + cl_maxpackets = Cvar_Get( "cl_maxpackets", "30", 0 ); + cl_fuzzhack = Cvar_Get( "cl_fuzzhack", "0", 0 ); + cl_packetdup = Cvar_Get( "cl_packetdup", "1", 0 ); +#ifdef _DEBUG + cl_showpackets = Cvar_Get( "cl_showpackets", "0", 0 ); +#endif + cl_instantpacket = Cvar_Get( "cl_instantpacket", "1", 0 ); + + cl_upspeed = Cvar_Get ( "cl_upspeed", "200", 0 ); + cl_forwardspeed = Cvar_Get ( "cl_forwardspeed", "200", 0 ); + cl_sidespeed = Cvar_Get ( "cl_sidespeed", "200", 0 ); + cl_yawspeed = Cvar_Get ( "cl_yawspeed", "140", 0 ); + cl_pitchspeed = Cvar_Get ( "cl_pitchspeed", "150", CVAR_CHEAT ); + cl_anglespeedkey = Cvar_Get ( "cl_anglespeedkey", "1.5", CVAR_CHEAT ); + cl_run = Cvar_Get( "cl_run", "1", CVAR_ARCHIVE ); + + freelook = Cvar_Get( "freelook", "0", CVAR_ARCHIVE ); + lookspring = Cvar_Get ( "lookspring", "0", CVAR_ARCHIVE ); + lookstrafe = Cvar_Get ( "lookstrafe", "0", CVAR_ARCHIVE ); + sensitivity = Cvar_Get ( "sensitivity", "3", CVAR_ARCHIVE ); + + m_pitch = Cvar_Get ( "m_pitch", "0.022", CVAR_ARCHIVE ); + m_yaw = Cvar_Get ( "m_yaw", "0.022", 0 ); + m_forward = Cvar_Get ( "m_forward", "1", 0 ); + m_side = Cvar_Get ( "m_side", "1", 0 ); + m_filter = Cvar_Get( "m_filter", "0", 0 ); + m_accel = Cvar_Get( "m_accel", "0", 0 ); + m_autosens = Cvar_Get( "m_autosens", "0", 0 ); +} + +void CL_FinalizeCmd( void ) { + vec3_t move; + + // command buffer ticks in sync with cl_maxfps + if( cmd_buffer.waitCount > 0 ) { + cmd_buffer.waitCount--; + } + if( cl_cmdbuf.waitCount > 0 ) { + cl_cmdbuf.waitCount--; + } + + if( cls.state < ca_active ) { + return; // not talking to a server + } + + if( sv_paused->integer ) { + return; + } + +// +// figure button bits +// + if( in_attack.state & 3 ) + cl.cmd.buttons |= BUTTON_ATTACK; + if( in_use.state & 3 ) + cl.cmd.buttons |= BUTTON_USE; + + in_attack.state &= ~2; + in_use.state &= ~2; + + if( cls.key_dest == KEY_GAME && Key_AnyKeyDown() ) { + cl.cmd.buttons |= BUTTON_ANY; + } + + if( cl.cmd.msec > 250 ) { + cl.cmd.msec = 100; // time was unreasonable + } + + move[0] = cl.cmd.forwardmove; + move[1] = cl.cmd.sidemove; + move[2] = cl.cmd.upmove; + + CL_BaseMove( move ); + + cl.cmd.forwardmove = move[0]; + cl.cmd.sidemove = move[1]; + cl.cmd.upmove = move[2]; + + KeyClear( &in_right ); + KeyClear( &in_left ); + + KeyClear( &in_moveright ); + KeyClear( &in_moveleft ); + + KeyClear( &in_up ); + KeyClear( &in_down ); + + KeyClear( &in_forward ); + KeyClear( &in_back ); + + KeyClear( &in_lookup ); + KeyClear( &in_lookdown ); + + cl.cmd.impulse = in_impulse; + in_impulse = 0; + + // save this command off for prediction + cl.cmdNumber++; + cl.cmds[cl.cmdNumber & CMD_MASK] = cl.cmd; + + // clear pending cmd + memset( &cl.cmd, 0, sizeof( cl.cmd ) ); +} + +/* +================= +CL_ReadyToSend +================= +*/ +static inline qboolean CL_ReadyToSend( void ) { + unsigned msec; + + if( cl.sendPacketNow ) { + return qtrue; + } + if( cls.netchan->message.cursize || cls.netchan->reliable_ack_pending ) { + return qtrue; + } + if( cls.serverProtocol != PROTOCOL_VERSION_Q2PRO && !cl_fuzzhack->integer ) + { + return qtrue; + } + if( !cl_maxpackets->integer ) { + return qtrue; + } + + if( cl_maxpackets->integer < 10 ) { + Cvar_Set( "cl_maxpackets", "10" ); + } + + msec = 1000 / cl_maxpackets->integer; + if( msec ) { + msec = 100 / ( 100 / msec ); + } + if( cls.realtime - cl.lastTransmitTime < msec ) { + return qfalse; + } + + return qtrue; +} + +/* +================= +CL_SendDefaultCmd +================= +*/ +static void CL_SendDefaultCmd( void ) { + size_t cursize, checksumIndex; + usercmd_t *cmd, *oldcmd; + client_history_t *history; + + // archive this packet + history = &cl.history[cls.netchan->outgoing_sequence & CMD_MASK]; + history->cmdNumber = cl.cmdNumber; + history->sent = cls.realtime; // for ping calculation + history->rcvd = 0; + + cl.lastTransmitCmdNumber = cl.cmdNumber; + + // see if we are ready to send this packet + if( !CL_ReadyToSend() ) { + if( cl.cmdNumber - cl.lastTransmitCmdNumber < 3 ) { + cls.netchan->outgoing_sequence++; // HACK: just drop the packet + return; + } + } + + cl.lastTransmitTime = cls.realtime; + + // begin a client move command + MSG_WriteByte( clc_move ); + + // save the position for a checksum byte + checksumIndex = 0; + if( cls.serverProtocol <= PROTOCOL_VERSION_DEFAULT ) { + checksumIndex = msg_write.cursize; + SZ_GetSpace( &msg_write, 1 ); + } + + // let the server know what the last frame we + // got was, so the next message can be delta compressed + if( cl_nodelta->integer || !cl.frame.valid /*|| cls.demowaiting*/ ) { + MSG_WriteLong( -1 ); // no compression + } else { + MSG_WriteLong( cl.frame.number ); + } + + // send this and the previous cmds in the message, so + // if the last packet was dropped, it can be recovered + cmd = &cl.cmds[( cl.cmdNumber - 2 ) & CMD_MASK]; + MSG_WriteDeltaUsercmd( NULL, cmd, cls.protocolVersion ); + MSG_WriteByte( cl.lightlevel ); + oldcmd = cmd; + + cmd = &cl.cmds[( cl.cmdNumber - 1 ) & CMD_MASK]; + MSG_WriteDeltaUsercmd( oldcmd, cmd, cls.protocolVersion ); + MSG_WriteByte( cl.lightlevel ); + oldcmd = cmd; + + cmd = &cl.cmds[cl.cmdNumber & CMD_MASK]; + MSG_WriteDeltaUsercmd( oldcmd, cmd, cls.protocolVersion ); + MSG_WriteByte( cl.lightlevel ); + + if( cls.serverProtocol <= PROTOCOL_VERSION_DEFAULT ) { + // calculate a checksum over the move commands + msg_write.data[checksumIndex] = COM_BlockSequenceCRCByte( + msg_write.data + checksumIndex + 1, + msg_write.cursize - checksumIndex - 1, + cls.netchan->outgoing_sequence ); + } + + P_FRAMES++; + + // + // deliver the message + // + cursize = cls.netchan->Transmit( cls.netchan, msg_write.cursize, msg_write.data, 1 ); +#ifdef _DEBUG + if( cl_showpackets->integer ) { + Com_Printf( "%"PRIz" ", cursize ); + } +#endif + + SZ_Clear( &msg_write ); +} + +/* +================= +CL_SendBatchedCmd +================= +*/ +static void CL_SendBatchedCmd( void ) { + int i, j, seq, bits; + int numCmds, numDups; + int totalCmds, totalMsec; + size_t cursize; + usercmd_t *cmd, *oldcmd; + client_history_t *history, *oldest; + byte *patch; + + // see if we are ready to send this packet + if( !CL_ReadyToSend() ) { + return; + } + + // archive this packet + seq = cls.netchan->outgoing_sequence; + history = &cl.history[seq & CMD_MASK]; + history->cmdNumber = cl.cmdNumber; + history->sent = cls.realtime; // for ping calculation + history->rcvd = 0; + + cl.lastTransmitTime = cls.realtime; + cl.lastTransmitCmdNumber = cl.cmdNumber; + + // begin a client move command + patch = SZ_GetSpace( &msg_write, 1 ); + + // let the server know what the last frame we + // got was, so the next message can be delta compressed + if( cl_nodelta->integer || !cl.frame.valid /*|| cls.demowaiting*/ ) { + *patch = clc_move_nodelta; // no compression + } else { + *patch = clc_move_batched; + MSG_WriteLong( cl.frame.number ); + } + + Cvar_ClampInteger( cl_packetdup, 0, MAX_PACKET_FRAMES - 1 ); + numDups = cl_packetdup->integer; + + *patch |= numDups << SVCMD_BITS; + + // send lightlevel + MSG_WriteByte( cl.lightlevel ); + + // send this and the previous cmds in the message, so + // if the last packet was dropped, it can be recovered + oldcmd = NULL; + totalCmds = 0; + totalMsec = 0; + for( i = seq - numDups; i <= seq; i++ ) { + oldest = &cl.history[( i - 1 ) & CMD_MASK]; + history = &cl.history[i & CMD_MASK]; + + numCmds = history->cmdNumber - oldest->cmdNumber; + if( numCmds >= MAX_PACKET_USERCMDS ) { + Com_WPrintf( "%s: MAX_PACKET_USERCMDS exceeded\n", __func__ ); + SZ_Clear( &msg_write ); + break; + } + totalCmds += numCmds; + MSG_WriteBits( numCmds, 5 ); + for( j = oldest->cmdNumber + 1; j <= history->cmdNumber; j++ ) { + cmd = &cl.cmds[j & CMD_MASK]; + totalMsec += cmd->msec; + bits = MSG_WriteDeltaUsercmd_Enhanced( oldcmd, cmd, cls.protocolVersion ); +#ifdef _DEBUG + if( cl_showpackets->integer == 3 ) { + MSG_ShowDeltaUsercmdBits_Enhanced( bits ); + } +#endif + oldcmd = cmd; + } + } + + P_FRAMES++; + + // + // deliver the message + // + cursize = cls.netchan->Transmit( cls.netchan, msg_write.cursize, msg_write.data, 1 ); +#ifdef _DEBUG + if( cl_showpackets->integer == 1 ) { + Com_Printf( "%"PRIz"(%i) ", cursize, totalCmds ); + } else if( cl_showpackets->integer == 2 ) { + Com_Printf( "%"PRIz"(%i) ", cursize, totalMsec ); + } else if( cl_showpackets->integer == 3 ) { + Com_Printf( " | " ); + } +#endif + + SZ_Clear( &msg_write ); + +} + +static void CL_SendUserinfo( void ) { + char userinfo[MAX_INFO_STRING]; + cvar_t *var; + int i; + + if( !cls.userinfo_modified ) { + return; + } + + if( cls.userinfo_modified == MAX_PACKET_USERINFOS ) { + size_t len = Cvar_BitInfo( userinfo, CVAR_USERINFO ); + MSG_WriteByte( clc_userinfo ); + MSG_WriteData( userinfo, len + 1 ); + MSG_FlushTo( &cls.netchan->message ); + } else if( cls.serverProtocol == PROTOCOL_VERSION_Q2PRO ) { + Com_DPrintf( "Sending %d userinfo updates at frame %u\n", + cls.userinfo_modified, com_framenum ); + for( i = 0; i < cls.userinfo_modified; i++ ) { + var = cls.userinfo_updates[i]; + MSG_WriteByte( clc_userinfo_delta ); + MSG_WriteString( var->name ); + if( var->flags & CVAR_USERINFO ) { + MSG_WriteString( var->string ); + } else { + // no longer in userinfo + MSG_WriteString( NULL ); + } + } + MSG_FlushTo( &cls.netchan->message ); + } else { + Com_WPrintf( "Userinfo update count is %d, should not happen.\n", + cls.userinfo_modified ); + } + cls.userinfo_modified = 0; + +} + +void CL_SendCmd( void ) { + if( cls.state < ca_connected ) { + return; // not talking to a server + } + + // generate usercmds while playing a demo, + // but do not send them + if( !cls.netchan ) { + return; + } + + if( cls.state < ca_active ) { + CL_SendUserinfo(); + + // just keepalive or update reliable + if( cls.netchan->ShouldUpdate( cls.netchan ) ) { + cls.netchan->Transmit( cls.netchan, 0, NULL, 1 ); + } + cl.lastframe = -1; + cl.lastTransmitCmdNumber = cl.cmdNumber; + return; + } + + // are there any new usercmds to send after all? + if( cl.lastTransmitCmdNumber == cl.cmdNumber ) { + // we still need to send an empty packet if server + // is paused to make delta compression code happy + if( !sv_paused->integer ) { + return; // nothing to send + } + } + + // send a userinfo update if needed + CL_SendUserinfo(); + + if( cls.serverProtocol == PROTOCOL_VERSION_Q2PRO ) { + CL_SendBatchedCmd(); + } else { + CL_SendDefaultCmd(); + } + + cl.sendPacketNow = qfalse; +} + |