mirror of
https://github.com/ZDoom/Raze.git
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393 lines
11 KiB
C++
393 lines
11 KiB
C++
//-------------------------------------------------------------------------
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/*
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Copyright (C) 2019 Christoph Oelckers
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Copyright (C) 2020 Mitchell Richters
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This is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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//-------------------------------------------------------------------------
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#include "gamecontrol.h"
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#include "gameinput.h"
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#include "gamestruct.h"
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#include "serializer.h"
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CVARD(Bool, invertmousex, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG, "invert horizontal mouse movement")
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CVARD(Bool, invertmouse, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG, "invert vertical mouse movement")
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//---------------------------------------------------------------------------
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//
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// code fron gameexec/conrun
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//
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//---------------------------------------------------------------------------
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int getincangle(int a, int na)
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{
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a &= 2047;
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na &= 2047;
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if(abs(a-na) < 1024)
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return (na-a);
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else
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{
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if(na > 1024) na -= 2048;
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if(a > 1024) a -= 2048;
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na -= 2048;
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a -= 2048;
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return (na-a);
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}
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}
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fixed_t getincangleq16(fixed_t a, fixed_t na)
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{
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a &= 0x7FFFFFF;
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na &= 0x7FFFFFF;
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if(abs(a-na) < IntToFixed(1024))
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return (na-a);
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else
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{
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if(na > IntToFixed(1024)) na -= IntToFixed(2048);
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if(a > IntToFixed(1024)) a -= IntToFixed(2048);
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na -= IntToFixed(2048);
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a -= IntToFixed(2048);
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return (na-a);
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}
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}
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//---------------------------------------------------------------------------
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//
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// Player's movement function, called from game's ticker or from gi->GetInput() as required.
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//
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//---------------------------------------------------------------------------
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/*
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// Running speed.
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Blood: 92 / 4 * 2 * 30 = 1380;
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Duke: 15 * 2 * 2 * 30 = 1800;
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SW: 28 * 1.40625 * 40 = 1575; // Precisely, ((((28 * 12) + ((28 * 12) / 4)) * 3) / 32) * 40
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Average: 1585.;
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// Normal speed.
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Blood: 92 / 4 * 30 = 690;
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Duke: 15 * 2 * 30 = 900;
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SW: 18 * 1.40625 * 40 = 1012.5; // Precisely, (((((12 + 6) * 12) + (((12 + 6) * 12) / 4)) * 3) / 32) * 40
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Average: 867.5;
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// Preamble.
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Blood: N/A;
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Duke: 5 * 2 * 30 = 300;
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SW: 3 * 1.40625 * 40 = 168.75; // Precisely, ((((3 * 12) + ((3 * 12) / 4)) * 3) / 32) * 40
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Average: 234.375;
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Ratio: 867.5 / 234.375 = (2776. / 750.);
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// Turbo turn time.
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Blood: 24 * 30 = 720;
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Duke: 128 / 8 * 30 = 450;
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SW: 128 / 8 * 40 = 600;
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Average: 590.;
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*/
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void processMovement(InputPacket* currInput, InputPacket* inputBuffer, ControlInfo* const hidInput, double const scaleAdjust, int const drink_amt, bool const allowstrafe, double const turnscale)
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{
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// set up variables
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int const running = !!(inputBuffer->actions & SB_RUN);
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int const keymove = gi->playerKeyMove() << running;
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int const cntrlvelscale = g_gameType & GAMEFLAG_PSEXHUMED ? 8 : 1;
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float const mousevelscale = keymove / 160.f;
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double const angtodegscale = 360. / 2048.;
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double const hidspeed = ((running ? 1585. : 867.5) / GameTicRate) * angtodegscale;
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// process mouse and initial controller input.
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if (buttonMap.ButtonDown(gamefunc_Strafe) && allowstrafe)
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currInput->svel -= xs_CRoundToInt((hidInput->mousemovex * mousevelscale) + (scaleAdjust * (hidInput->dyaw / 60) * keymove * cntrlvelscale));
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else
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currInput->avel += hidInput->mouseturnx + (scaleAdjust * hidInput->dyaw * hidspeed * turnscale);
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if (!(inputBuffer->actions & SB_AIMMODE))
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currInput->horz -= hidInput->mouseturny;
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else
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currInput->fvel -= xs_CRoundToInt(hidInput->mousemovey * mousevelscale);
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if (invertmouse)
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currInput->horz = -currInput->horz;
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if (invertmousex)
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currInput->avel = -currInput->avel;
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// process remaining controller input.
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currInput->horz -= scaleAdjust * hidInput->dpitch * hidspeed;
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currInput->svel -= xs_CRoundToInt(scaleAdjust * hidInput->dx * keymove * cntrlvelscale);
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currInput->fvel -= xs_CRoundToInt(scaleAdjust * hidInput->dz * keymove * cntrlvelscale);
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// process keyboard turning keys.
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if (buttonMap.ButtonDown(gamefunc_Strafe) && allowstrafe)
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{
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if (abs(inputBuffer->svel) < keymove)
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{
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if (buttonMap.ButtonDown(gamefunc_Turn_Left))
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currInput->svel += keymove;
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if (buttonMap.ButtonDown(gamefunc_Turn_Right))
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currInput->svel -= keymove;
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}
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}
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else
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{
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static double turnheldtime;
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int const turnheldamt = 120 / GameTicRate;
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double const turboturntime = 590. / GameTicRate;
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double turnamount = hidspeed * turnscale;
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double preambleturn = turnamount * (750. / 2776.);
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// allow Exhumed to use its legacy values given the drastic difference from the other games.
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if ((g_gameType & GAMEFLAG_PSEXHUMED) && cl_exhumedoldturn)
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{
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preambleturn = turnamount = (running ? 12 : 8) * angtodegscale;
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}
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if (buttonMap.ButtonDown(gamefunc_Turn_Left) || (buttonMap.ButtonDown(gamefunc_Strafe_Left) && !allowstrafe))
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{
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turnheldtime += scaleAdjust * turnheldamt;
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currInput->avel -= scaleAdjust * (turnheldtime >= turboturntime ? turnamount : preambleturn);
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}
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else if (buttonMap.ButtonDown(gamefunc_Turn_Right) || (buttonMap.ButtonDown(gamefunc_Strafe_Right) && !allowstrafe))
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{
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turnheldtime += scaleAdjust * turnheldamt;
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currInput->avel += scaleAdjust * (turnheldtime >= turboturntime ? turnamount : preambleturn);
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}
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else
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{
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turnheldtime = 0;
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}
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}
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// process keyboard forward/side velocity keys.
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if (abs(inputBuffer->svel) < keymove)
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{
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if (buttonMap.ButtonDown(gamefunc_Strafe_Left) && allowstrafe)
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currInput->svel += keymove;
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if (buttonMap.ButtonDown(gamefunc_Strafe_Right) && allowstrafe)
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currInput->svel -= keymove;
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}
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if (abs(inputBuffer->fvel) < keymove)
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{
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if (isRR() && drink_amt >= 66 && drink_amt <= 87)
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{
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if (buttonMap.ButtonDown(gamefunc_Move_Forward))
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{
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currInput->fvel += keymove;
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if (drink_amt & 1)
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currInput->svel += keymove;
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else
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currInput->svel -= keymove;
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}
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if (buttonMap.ButtonDown(gamefunc_Move_Backward))
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{
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currInput->fvel -= keymove;
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if (drink_amt & 1)
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currInput->svel -= keymove;
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else
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currInput->svel += keymove;
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}
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}
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else
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{
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if (buttonMap.ButtonDown(gamefunc_Move_Forward))
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currInput->fvel += keymove;
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if (buttonMap.ButtonDown(gamefunc_Move_Backward))
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currInput->fvel -= keymove;
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}
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}
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// add collected input to game's local input accumulation packet.
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inputBuffer->fvel = clamp(inputBuffer->fvel + currInput->fvel, -keymove, keymove);
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inputBuffer->svel = clamp(inputBuffer->svel + currInput->svel, -keymove, keymove);
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inputBuffer->avel += currInput->avel;
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inputBuffer->horz += currInput->horz;
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}
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//---------------------------------------------------------------------------
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//
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// Player's horizon function, called from game's ticker or from gi->GetInput() as required.
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//
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//---------------------------------------------------------------------------
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void sethorizon(fixedhoriz* horiz, float const horz, ESyncBits* actions, double const scaleAdjust)
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{
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// Store current horizon as true pitch.
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double pitch = horiz->aspitch();
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if (horz)
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{
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*actions &= ~SB_CENTERVIEW;
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pitch += horz;
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}
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// this is the locked type
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if (*actions & (SB_AIM_UP|SB_AIM_DOWN))
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{
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*actions &= ~SB_CENTERVIEW;
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double const amount = HorizToPitch(250. / GameTicRate);
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if (*actions & SB_AIM_DOWN)
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pitch -= scaleAdjust * amount;
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if (*actions & SB_AIM_UP)
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pitch += scaleAdjust * amount;
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}
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// this is the unlocked type
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if (*actions & (SB_LOOK_UP|SB_LOOK_DOWN))
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{
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*actions |= SB_CENTERVIEW;
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double const amount = HorizToPitch(500. / GameTicRate);
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if (*actions & SB_LOOK_DOWN)
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pitch -= scaleAdjust * amount;
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if (*actions & SB_LOOK_UP)
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pitch += scaleAdjust * amount;
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}
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// clamp pitch after processing
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pitch = clamp(pitch, -90, 90);
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// return to center if conditions met.
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if ((*actions & SB_CENTERVIEW) && !(*actions & (SB_LOOK_UP|SB_LOOK_DOWN)))
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{
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if (abs(pitch) > 0.1375)
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{
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// move pitch back to 0
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pitch += -scaleAdjust * pitch * (9. / GameTicRate);
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}
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else
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{
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// not looking anymore because pitch is back at 0
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pitch = 0;
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*actions &= ~SB_CENTERVIEW;
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}
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}
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// clamp before returning
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*horiz = q16horiz(clamp(PitchToHoriz(pitch), gi->playerHorizMin(), gi->playerHorizMax()));
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}
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//---------------------------------------------------------------------------
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//
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// Player's angle function, called from game's ticker or from gi->GetInput() as required.
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//
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//---------------------------------------------------------------------------
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void applylook(PlayerAngle* angle, float const avel, ESyncBits* actions, double const scaleAdjust, bool const crouching)
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{
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// return q16rotscrnang to 0 and set to 0 if less than a quarter of a unit
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angle->rotscrnang -= bamlook(xs_CRoundToInt(scaleAdjust * angle->rotscrnang.asbam() * (15. / GameTicRate)));
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if (abs(angle->rotscrnang.asbam()) < (BAMUNIT >> 2)) angle->rotscrnang = bamlook(0);
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// return q16look_ang to 0 and set to 0 if less than a quarter of a unit
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angle->look_ang -= bamlook(xs_CRoundToInt(scaleAdjust * angle->look_ang.asbam() * (7.5 / GameTicRate)));
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if (abs(angle->look_ang.asbam()) < (BAMUNIT >> 2)) angle->look_ang = bamlook(0);
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if (*actions & SB_LOOK_LEFT)
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{
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// start looking left
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angle->look_ang -= bamlook(xs_CRoundToInt(scaleAdjust * (4560. / GameTicRate) * BAMUNIT));
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angle->rotscrnang += bamlook(xs_CRoundToInt(scaleAdjust * (720. / GameTicRate) * BAMUNIT));
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}
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if (*actions & SB_LOOK_RIGHT)
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{
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// start looking right
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angle->look_ang += bamlook(xs_CRoundToInt(scaleAdjust * (4560. / GameTicRate) * BAMUNIT));
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angle->rotscrnang -= bamlook(xs_CRoundToInt(scaleAdjust * (720. / GameTicRate) * BAMUNIT));
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}
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if (*actions & SB_TURNAROUND)
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{
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if (angle->spin.asbam() == 0)
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{
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// currently not spinning, so start a spin
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angle->spin = buildlook(-1024);
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}
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*actions &= ~SB_TURNAROUND;
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}
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if (angle->spin.asbam() < 0)
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{
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// return spin to 0
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lookangle add = bamlook(xs_CRoundToUInt(scaleAdjust * ((!crouching ? 3840. : 1920.) / GameTicRate) * BAMUNIT));
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angle->spin += add;
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if (angle->spin.asbam() > 0)
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{
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// Don't overshoot our target. With variable factor this is possible.
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add -= angle->spin;
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angle->spin = bamlook(0);
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}
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angle->ang += bamang(add.asbam());
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}
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if (avel)
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{
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// add player's input
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angle->ang += degang(avel);
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}
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}
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FSerializer& Serialize(FSerializer& arc, const char* keyname, PlayerAngle& w, PlayerAngle* def)
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{
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if (arc.BeginObject(keyname))
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{
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arc("ang", w.ang)
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("lookang", w.look_ang)
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("rotscrnang", w.rotscrnang)
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("spin", w.spin)
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.EndObject();
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if (arc.isReading())
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{
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w.oang = w.ang;
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w.olook_ang = w.look_ang;
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w.orotscrnang = w.rotscrnang;
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w.resetadjustment();
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}
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}
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return arc;
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}
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FSerializer& Serialize(FSerializer& arc, const char* keyname, PlayerHorizon& w, PlayerHorizon* def)
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{
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if (arc.BeginObject(keyname))
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{
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arc("horiz", w.horiz)
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("horizoff", w.horizoff)
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.EndObject();
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if (arc.isReading())
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{
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w.ohoriz = w.horiz;
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w.ohorizoff = w.horizoff;
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w.resetadjustment();
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}
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}
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return arc;
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}
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