cl_input.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // cl.input.c  -- builds an intended movement command to send to the server
  21
  22 // Quake is a trademark of Id Software, Inc., (c) 1996 Id Software, Inc. All
  23 // rights reserved.
  24
  25 #include "quakedef.h"
  26
  27 /*
  28 ===============================================================================
  29
  30 KEY BUTTONS
  31
  32 Continuous button event tracking is complicated by the fact that two different
  33 input sources (say, mouse button 1 and the control key) can both press the
  34 same button, but the button should only be released when both of the
  35 pressing key have been released.
  36
  37 When a key event issues a button command (+forward, +attack, etc), it appends
  38 its key number as a parameter to the command so it can be matched up with
  39 the release.
  40
  41 state bit 0 is the current state of the key
  42 state bit 1 is edge triggered on the up to down transition
  43 state bit 2 is edge triggered on the down to up transition
  44
  45 ===============================================================================
  46 */
  47
  48
  49 kbutton_t       in_mlook, in_klook;
  50 kbutton_t       in_left, in_right, in_forward, in_back;
  51 kbutton_t       in_lookup, in_lookdown, in_moveleft, in_moveright;
  52 kbutton_t       in_strafe, in_speed, in_jump, in_attack;
  53 kbutton_t       in_up, in_down;
  54 // LordHavoc: added 6 new buttons
  55 kbutton_t       in_button3, in_button4, in_button5, in_button6, in_button7, in_button8;
  56
  57 int                     in_impulse;
  58
  59
  60 void KeyDown (kbutton_t *b)
  61 {
  62         int k;
  63         const char *c;
  64
  65         c = Cmd_Argv(1);
  66         if (c[0])
  67                 k = atoi(c);
  68         else
  69                 k = -1;         // typed manually at the console for continuous down
  70
  71         if (k == b->down[0] || k == b->down[1])
  72                 return;         // repeating key
  73
  74         if (!b->down[0])
  75                 b->down[0] = k;
  76         else if (!b->down[1])
  77                 b->down[1] = k;
  78         else
  79         {
  80                 Con_Print("Three keys down for a button!\n");
  81                 return;
  82         }
  83
  84         if (b->state & 1)
  85                 return;         // still down
  86         b->state |= 1 + 2;      // down + impulse down
  87 }
  88
  89 void KeyUp (kbutton_t *b)
  90 {
  91         int k;
  92         const char *c;
  93
  94         c = Cmd_Argv(1);
  95         if (c[0])
  96                 k = atoi(c);
  97         else
  98         { // typed manually at the console, assume for unsticking, so clear all
  99                 b->down[0] = b->down[1] = 0;
 100                 b->state = 4;   // impulse up
 101                 return;
 102         }
 103
 104         if (b->down[0] == k)
 105                 b->down[0] = 0;
 106         else if (b->down[1] == k)
 107                 b->down[1] = 0;
 108         else
 109                 return;         // key up without coresponding down (menu pass through)
 110         if (b->down[0] || b->down[1])
 111                 return;         // some other key is still holding it down
 112
 113         if (!(b->state & 1))
 114                 return;         // still up (this should not happen)
 115         b->state &= ~1;         // now up
 116         b->state |= 4;          // impulse up
 117 }
 118
 119 void IN_KLookDown (void) {KeyDown(&in_klook);}
 120 void IN_KLookUp (void) {KeyUp(&in_klook);}
 121 void IN_MLookDown (void) {KeyDown(&in_mlook);}
 122 void IN_MLookUp (void)
 123 {
 124         KeyUp(&in_mlook);
 125         if ( !(in_mlook.state&1) && lookspring.value)
 126                 V_StartPitchDrift();
 127 }
 128 void IN_UpDown(void) {KeyDown(&in_up);}
 129 void IN_UpUp(void) {KeyUp(&in_up);}
 130 void IN_DownDown(void) {KeyDown(&in_down);}
 131 void IN_DownUp(void) {KeyUp(&in_down);}
 132 void IN_LeftDown(void) {KeyDown(&in_left);}
 133 void IN_LeftUp(void) {KeyUp(&in_left);}
 134 void IN_RightDown(void) {KeyDown(&in_right);}
 135 void IN_RightUp(void) {KeyUp(&in_right);}
 136 void IN_ForwardDown(void) {KeyDown(&in_forward);}
 137 void IN_ForwardUp(void) {KeyUp(&in_forward);}
 138 void IN_BackDown(void) {KeyDown(&in_back);}
 139 void IN_BackUp(void) {KeyUp(&in_back);}
 140 void IN_LookupDown(void) {KeyDown(&in_lookup);}
 141 void IN_LookupUp(void) {KeyUp(&in_lookup);}
 142 void IN_LookdownDown(void) {KeyDown(&in_lookdown);}
 143 void IN_LookdownUp(void) {KeyUp(&in_lookdown);}
 144 void IN_MoveleftDown(void) {KeyDown(&in_moveleft);}
 145 void IN_MoveleftUp(void) {KeyUp(&in_moveleft);}
 146 void IN_MoverightDown(void) {KeyDown(&in_moveright);}
 147 void IN_MoverightUp(void) {KeyUp(&in_moveright);}
 148
 149 void IN_SpeedDown(void) {KeyDown(&in_speed);}
 150 void IN_SpeedUp(void) {KeyUp(&in_speed);}
 151 void IN_StrafeDown(void) {KeyDown(&in_strafe);}
 152 void IN_StrafeUp(void) {KeyUp(&in_strafe);}
 153
 154 void IN_AttackDown(void) {KeyDown(&in_attack);}
 155 void IN_AttackUp(void) {KeyUp(&in_attack);}
 156
 157 // LordHavoc: added 6 new buttons
 158 void IN_Button3Down(void) {KeyDown(&in_button3);}
 159 void IN_Button3Up(void) {KeyUp(&in_button3);}
 160 void IN_Button4Down(void) {KeyDown(&in_button4);}
 161 void IN_Button4Up(void) {KeyUp(&in_button4);}
 162 void IN_Button5Down(void) {KeyDown(&in_button5);}
 163 void IN_Button5Up(void) {KeyUp(&in_button5);}
 164 void IN_Button6Down(void) {KeyDown(&in_button6);}
 165 void IN_Button6Up(void) {KeyUp(&in_button6);}
 166 void IN_Button7Down(void) {KeyDown(&in_button7);}
 167 void IN_Button7Up(void) {KeyUp(&in_button7);}
 168 void IN_Button8Down(void) {KeyDown(&in_button8);}
 169 void IN_Button8Up(void) {KeyUp(&in_button8);}
 170
 171 void IN_JumpDown (void) {KeyDown(&in_jump);}
 172 void IN_JumpUp (void) {KeyUp(&in_jump);}
 173
 174 void IN_Impulse (void) {in_impulse=atoi(Cmd_Argv(1));}
 175
 176 /*
 177 ===============
 178 CL_KeyState
 179
 180 Returns 0.25 if a key was pressed and released during the frame,
 181 0.5 if it was pressed and held
 182 0 if held then released, and
 183 1.0 if held for the entire time
 184 ===============
 185 */
 186 float CL_KeyState (kbutton_t *key)
 187 {
 188         float           val;
 189         qboolean        impulsedown, impulseup, down;
 190
 191         impulsedown = key->state & 2;
 192         impulseup = key->state & 4;
 193         down = key->state & 1;
 194         val = 0;
 195
 196         if (impulsedown && !impulseup)
 197         {
 198                 if (down)
 199                         val = 0.5;      // pressed and held this frame
 200                 else
 201                         val = 0;        //      I_Error ();
 202         }
 203         if (impulseup && !impulsedown)
 204         {
 205                 if (down)
 206                         val = 0;        //      I_Error ();
 207                 else
 208                         val = 0;        // released this frame
 209         }
 210         if (!impulsedown && !impulseup)
 211         {
 212                 if (down)
 213                         val = 1.0;      // held the entire frame
 214                 else
 215                         val = 0;        // up the entire frame
 216         }
 217         if (impulsedown && impulseup)
 218         {
 219                 if (down)
 220                         val = 0.75;     // released and re-pressed this frame
 221                 else
 222                         val = 0.25;     // pressed and released this frame
 223         }
 224
 225         key->state &= 1;                // clear impulses
 226
 227         return val;
 228 }
 229
 230
 231
 232
 233 //==========================================================================
 234
 235 cvar_t cl_upspeed = {CVAR_SAVE, "cl_upspeed","400"};
 236 cvar_t cl_forwardspeed = {CVAR_SAVE, "cl_forwardspeed","400"};
 237 cvar_t cl_backspeed = {CVAR_SAVE, "cl_backspeed","400"};
 238 cvar_t cl_sidespeed = {CVAR_SAVE, "cl_sidespeed","350"};
 239
 240 cvar_t cl_movespeedkey = {CVAR_SAVE, "cl_movespeedkey","2.0"};
 241
 242 cvar_t cl_yawspeed = {CVAR_SAVE, "cl_yawspeed","140"};
 243 cvar_t cl_pitchspeed = {CVAR_SAVE, "cl_pitchspeed","150"};
 244
 245 cvar_t cl_anglespeedkey = {CVAR_SAVE, "cl_anglespeedkey","1.5"};
 246
 247 cvar_t cl_nodelta = {0, "cl_nodelta", "0"};
 248
 249 /*
 250 ================
 251 CL_AdjustAngles
 252
 253 Moves the local angle positions
 254 ================
 255 */
 256 void CL_AdjustAngles (void)
 257 {
 258         float   speed;
 259         float   up, down;
 260
 261         if (in_speed.state & 1)
 262                 speed = host_realframetime * cl_anglespeedkey.value;
 263         else
 264                 speed = host_realframetime;
 265
 266         if (!(in_strafe.state & 1))
 267         {
 268                 cl.viewangles[YAW] -= speed*cl_yawspeed.value*CL_KeyState (&in_right);
 269                 cl.viewangles[YAW] += speed*cl_yawspeed.value*CL_KeyState (&in_left);
 270         }
 271         if (in_klook.state & 1)
 272         {
 273                 V_StopPitchDrift ();
 274                 cl.viewangles[PITCH] -= speed*cl_pitchspeed.value * CL_KeyState (&in_forward);
 275                 cl.viewangles[PITCH] += speed*cl_pitchspeed.value * CL_KeyState (&in_back);
 276         }
 277
 278         up = CL_KeyState (&in_lookup);
 279         down = CL_KeyState(&in_lookdown);
 280
 281         cl.viewangles[PITCH] -= speed*cl_pitchspeed.value * up;
 282         cl.viewangles[PITCH] += speed*cl_pitchspeed.value * down;
 283
 284         if (up || down)
 285                 V_StopPitchDrift ();
 286
 287         cl.viewangles[YAW] = ANGLEMOD(cl.viewangles[YAW]);
 288         cl.viewangles[PITCH] = ANGLEMOD(cl.viewangles[PITCH]);
 289         cl.viewangles[ROLL] = ANGLEMOD(cl.viewangles[ROLL]);
 290         if (cl.viewangles[YAW] >= 180)
 291                 cl.viewangles[YAW] -= 360;
 292         if (cl.viewangles[PITCH] >= 180)
 293                 cl.viewangles[PITCH] -= 360;
 294         if (cl.viewangles[ROLL] >= 180)
 295                 cl.viewangles[ROLL] -= 360;
 296
 297         cl.viewangles[PITCH] = bound (in_pitch_min.value, cl.viewangles[PITCH], in_pitch_max.value);
 298         cl.viewangles[ROLL] = bound(-50, cl.viewangles[ROLL], 50);
 299 }
 300
 301 /*
 302 ================
 303 CL_BaseMove
 304
 305 Send the intended movement message to the server
 306 ================
 307 */
 308 void CL_BaseMove (usercmd_t *cmd)
 309 {
 310         if (cls.signon != SIGNONS)
 311                 return;
 312
 313         CL_AdjustAngles ();
 314
 315         memset (cmd, 0, sizeof(*cmd));
 316
 317         if (in_strafe.state & 1)
 318         {
 319                 cmd->sidemove += cl_sidespeed.value * CL_KeyState (&in_right);
 320                 cmd->sidemove -= cl_sidespeed.value * CL_KeyState (&in_left);
 321         }
 322
 323         cmd->sidemove += cl_sidespeed.value * CL_KeyState (&in_moveright);
 324         cmd->sidemove -= cl_sidespeed.value * CL_KeyState (&in_moveleft);
 325
 326         cmd->upmove += cl_upspeed.value * CL_KeyState (&in_up);
 327         cmd->upmove -= cl_upspeed.value * CL_KeyState (&in_down);
 328
 329         if (! (in_klook.state & 1) )
 330         {
 331                 cmd->forwardmove += cl_forwardspeed.value * CL_KeyState (&in_forward);
 332                 cmd->forwardmove -= cl_backspeed.value * CL_KeyState (&in_back);
 333         }
 334
 335 //
 336 // adjust for speed key
 337 //
 338         if (in_speed.state & 1)
 339         {
 340                 cmd->forwardmove *= cl_movespeedkey.value;
 341                 cmd->sidemove *= cl_movespeedkey.value;
 342                 cmd->upmove *= cl_movespeedkey.value;
 343         }
 344 }
 345
 346
 347
 348 /*
 349 ==============
 350 CL_SendMove
 351 ==============
 352 */
 353 void CL_SendMove(usercmd_t *cmd)
 354 {
 355         int i;
 356         int bits;
 357         sizebuf_t buf;
 358         qbyte data[128];
 359         static double lastmovetime;
 360         static float forwardmove, sidemove, upmove, total; // accumulation
 361
 362         forwardmove += cmd->forwardmove;
 363         sidemove += cmd->sidemove;
 364         upmove += cmd->upmove;
 365         total++;
 366         // LordHavoc: cap outgoing movement messages to sys_ticrate
 367         if (!cl.islocalgame && (realtime - lastmovetime < sys_ticrate.value))
 368                 return;
 369         lastmovetime = realtime;
 370         // average what has happened during this time
 371         total = 1.0f / total;
 372         forwardmove *= total;
 373         sidemove *= total;
 374         upmove *= total;
 375         total = 0;
 376
 377         buf.maxsize = 128;
 378         buf.cursize = 0;
 379         buf.data = data;
 380
 381         cl.cmd = *cmd;
 382
 383         // send the movement message
 384         MSG_WriteByte (&buf, clc_move);
 385
 386         MSG_WriteFloat (&buf, cl.mtime[0]);     // so server can get ping times
 387
 388         if (cl.protocol == PROTOCOL_DARKPLACES2 || cl.protocol == PROTOCOL_DARKPLACES3)
 389         {
 390                 for (i = 0;i < 3;i++)
 391                         MSG_WriteFloat (&buf, cl.viewangles[i]);
 392         }
 393         else if (cl.protocol == PROTOCOL_DARKPLACES1 || cl.protocol == PROTOCOL_DARKPLACES4 || cl.protocol == PROTOCOL_DARKPLACES5)
 394         {
 395                 for (i=0 ; i<3 ; i++)
 396                         MSG_WritePreciseAngle (&buf, cl.viewangles[i]);
 397         }
 398         else
 399         {
 400                 for (i=0 ; i<3 ; i++)
 401                         MSG_WriteAngle (&buf, cl.viewangles[i]);
 402         }
 403
 404         MSG_WriteShort (&buf, forwardmove);
 405         MSG_WriteShort (&buf, sidemove);
 406         MSG_WriteShort (&buf, upmove);
 407
 408         forwardmove = sidemove = upmove = 0;
 409         // send button bits
 410         bits = 0;
 411
 412         if ( in_attack.state & 3 )
 413                 bits |= 1;
 414         in_attack.state &= ~2;
 415
 416         if (in_jump.state & 3)
 417                 bits |= 2;
 418         in_jump.state &= ~2;
 419         // LordHavoc: added 6 new buttons
 420         if (in_button3.state & 3) bits |=   4;in_button3.state &= ~2;
 421         if (in_button4.state & 3) bits |=   8;in_button4.state &= ~2;
 422         if (in_button5.state & 3) bits |=  16;in_button5.state &= ~2;
 423         if (in_button6.state & 3) bits |=  32;in_button6.state &= ~2;
 424         if (in_button7.state & 3) bits |=  64;in_button7.state &= ~2;
 425         if (in_button8.state & 3) bits |= 128;in_button8.state &= ~2;
 426
 427         MSG_WriteByte (&buf, bits);
 428
 429         MSG_WriteByte (&buf, in_impulse);
 430         in_impulse = 0;
 431
 432         if (cl.protocol == PROTOCOL_DARKPLACES1 || cl.protocol == PROTOCOL_DARKPLACES2 || cl.protocol == PROTOCOL_DARKPLACES3)
 433         {
 434                 // LordHavoc: should we ack this on receipt instead?  would waste net bandwidth though
 435                 i = EntityFrame_MostRecentlyRecievedFrameNum(&cl.entitydatabase);
 436                 if (i > 0)
 437                 {
 438                         MSG_WriteByte(&buf, clc_ackentities);
 439                         MSG_WriteLong(&buf, i);
 440                 }
 441         }
 442         else
 443         {
 444                 if (cl.entitydatabase4)
 445                 {
 446                         i = cl.entitydatabase4->ackframenum;
 447                         if (cl_nodelta.integer)
 448                                 i = -1;
 449                         if (developer_networkentities.integer >= 1)
 450                                 Con_Printf("send clc_ackentities %i\n", i);
 451                         MSG_WriteByte(&buf, clc_ackentities);
 452                         MSG_WriteLong(&buf, i);
 453                 }
 454         }
 455
 456         // deliver the message
 457         if (cls.demoplayback)
 458                 return;
 459
 460         // always dump the first two messages, because they may contain leftover inputs from the last level
 461         if (++cl.movemessages <= 2)
 462                 return;
 463
 464         if (NetConn_SendUnreliableMessage(cls.netcon, &buf) == -1)
 465         {
 466                 Con_Print("CL_SendMove: lost server connection\n");
 467                 CL_Disconnect();
 468                 Host_ShutdownServer(false);
 469         }
 470 }
 471
 472 /*
 473 ============
 474 CL_InitInput
 475 ============
 476 */
 477 void CL_InitInput (void)
 478 {
 479         Cmd_AddCommand ("+moveup",IN_UpDown);
 480         Cmd_AddCommand ("-moveup",IN_UpUp);
 481         Cmd_AddCommand ("+movedown",IN_DownDown);
 482         Cmd_AddCommand ("-movedown",IN_DownUp);
 483         Cmd_AddCommand ("+left",IN_LeftDown);
 484         Cmd_AddCommand ("-left",IN_LeftUp);
 485         Cmd_AddCommand ("+right",IN_RightDown);
 486         Cmd_AddCommand ("-right",IN_RightUp);
 487         Cmd_AddCommand ("+forward",IN_ForwardDown);
 488         Cmd_AddCommand ("-forward",IN_ForwardUp);
 489         Cmd_AddCommand ("+back",IN_BackDown);
 490         Cmd_AddCommand ("-back",IN_BackUp);
 491         Cmd_AddCommand ("+lookup", IN_LookupDown);
 492         Cmd_AddCommand ("-lookup", IN_LookupUp);
 493         Cmd_AddCommand ("+lookdown", IN_LookdownDown);
 494         Cmd_AddCommand ("-lookdown", IN_LookdownUp);
 495         Cmd_AddCommand ("+strafe", IN_StrafeDown);
 496         Cmd_AddCommand ("-strafe", IN_StrafeUp);
 497         Cmd_AddCommand ("+moveleft", IN_MoveleftDown);
 498         Cmd_AddCommand ("-moveleft", IN_MoveleftUp);
 499         Cmd_AddCommand ("+moveright", IN_MoverightDown);
 500         Cmd_AddCommand ("-moveright", IN_MoverightUp);
 501         Cmd_AddCommand ("+speed", IN_SpeedDown);
 502         Cmd_AddCommand ("-speed", IN_SpeedUp);
 503         Cmd_AddCommand ("+attack", IN_AttackDown);
 504         Cmd_AddCommand ("-attack", IN_AttackUp);
 505         Cmd_AddCommand ("+jump", IN_JumpDown);
 506         Cmd_AddCommand ("-jump", IN_JumpUp);
 507         Cmd_AddCommand ("impulse", IN_Impulse);
 508         Cmd_AddCommand ("+klook", IN_KLookDown);
 509         Cmd_AddCommand ("-klook", IN_KLookUp);
 510         Cmd_AddCommand ("+mlook", IN_MLookDown);
 511         Cmd_AddCommand ("-mlook", IN_MLookUp);
 512
 513         // LordHavoc: added 6 new buttons
 514         Cmd_AddCommand ("+button3", IN_Button3Down);
 515         Cmd_AddCommand ("-button3", IN_Button3Up);
 516         Cmd_AddCommand ("+button4", IN_Button4Down);
 517         Cmd_AddCommand ("-button4", IN_Button4Up);
 518         Cmd_AddCommand ("+button5", IN_Button5Down);
 519         Cmd_AddCommand ("-button5", IN_Button5Up);
 520         Cmd_AddCommand ("+button6", IN_Button6Down);
 521         Cmd_AddCommand ("-button6", IN_Button6Up);
 522         Cmd_AddCommand ("+button7", IN_Button7Down);
 523         Cmd_AddCommand ("-button7", IN_Button7Up);
 524         Cmd_AddCommand ("+button8", IN_Button8Down);
 525         Cmd_AddCommand ("-button8", IN_Button8Up);
 526
 527         Cvar_RegisterVariable(&cl_nodelta);
 528 }
 529