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REDRIVER2/src_rebuild/Game/C/handling.c
Ilya Shurumov 5261b0516b - [Psy-X] full PSX C API compliance (hopefully) 
- [Psy-X] fix getScratchAddr BUG
2022-01-21 20:59:10 +03:00

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#include "driver2.h"
#include "handling.h"
#include "cosmetic.h"
#include "mission.h"
#include "dr2roads.h"
#include "cars.h"
#include "main.h"
#include "wheelforces.h"
#include "objcoll.h"
#include "denting.h"
#include "camera.h"
#include "felony.h"
#include "debris.h"
#include "pad.h"
#include "cop_ai.h"
#include "bcollide.h"
#include "bcoll3d.h"
#include "gamesnd.h"
#include "pedest.h"
#include "ai.h"
#include "sound.h"
#include "glaunch.h"
#include "shadow.h"
#include "players.h"
inline void UpdateCarDrawMatrix(CAR_DATA* cp)
{
cp->hd.drawCarMat.m[0][0] = -cp->hd.where.m[0][0];
cp->hd.drawCarMat.m[0][1] = -cp->hd.where.m[0][1];
cp->hd.drawCarMat.m[0][2] = -cp->hd.where.m[0][2];
cp->hd.drawCarMat.m[1][0] = cp->hd.where.m[1][0];
cp->hd.drawCarMat.m[1][1] = cp->hd.where.m[1][1];
cp->hd.drawCarMat.m[1][2] = cp->hd.where.m[1][2];
cp->hd.drawCarMat.m[2][0] = -cp->hd.where.m[2][0];
cp->hd.drawCarMat.m[2][1] = -cp->hd.where.m[2][1];
cp->hd.drawCarMat.m[2][2] = -cp->hd.where.m[2][2];
}
// [D] [T]
void InitCarPhysics(CAR_DATA* cp, LONGVECTOR4* startpos, int direction)
{
int ty;
int odz;
int dz;
dz = car_cosmetics[cp->ap.model].wheelDisp[0].vz + car_cosmetics[cp->ap.model].wheelDisp[1].vz;
ty = dz / 5;
odz = dz / 32;
cp->hd.direction = direction;
cp->hd.autoBrake = 0;
cp->st.n.orientation[0] = FIXEDH(-rcossin_tbl[(direction & 0xffeU) + 1] * ty);
cp->st.n.orientation[1] = rcossin_tbl[direction & 0xffeU];
cp->st.n.orientation[2] = FIXEDH(rcossin_tbl[direction & 0xffeU] * ty);
cp->st.n.orientation[3] = rcossin_tbl[(direction & 0xffeU) + 1];
cp->st.n.fposition[0] = (*startpos)[0] << 4;
cp->st.n.fposition[1] = (*startpos)[1] << 4;
cp->st.n.fposition[2] = (*startpos)[2] << 4;
cp->st.n.linearVelocity[0] = 0;
cp->st.n.linearVelocity[1] = 0;
cp->st.n.linearVelocity[2] = 0;
cp->st.n.angularVelocity[0] = 0;
cp->st.n.angularVelocity[1] = 0;
cp->st.n.angularVelocity[2] = 0;
cp->hd.aacc[0] = 0;
cp->hd.aacc[1] = 0;
cp->hd.aacc[2] = 0;
cp->hd.acc[0] = 0;
cp->hd.acc[1] = 0;
cp->hd.acc[2] = 0;
RebuildCarMatrix(&cp->st, cp);
UpdateCarDrawMatrix(cp);
cp->hd.wheel[0].susCompression = 14 - odz;
cp->hd.wheel[1].susCompression = odz + 14;
cp->hd.wheel[2].susCompression = 14 - odz;
cp->hd.wheel[3].susCompression = odz + 14;
cp->thrust = 0;
cp->wheel_angle = 0;
cp->hd.wheel_speed = 0;
}
// [D] [T]
void TempBuildHandlingMatrix(CAR_DATA* cp, int init)
{
int dz;
int ang;
dz = (car_cosmetics[cp->ap.model].wheelDisp[0].vz + car_cosmetics[cp->ap.model].wheelDisp[1].vz) / 5;
if (init == 1)
{
cp->st.n.fposition[0] = cp->hd.where.t[0] << 4;
cp->st.n.fposition[1] = cp->hd.where.t[1] << 4;
cp->st.n.fposition[2] = cp->hd.where.t[2] << 4;
}
ang = cp->hd.direction & 0xffe;
cp->st.n.orientation[0] = FIXEDH(-rcossin_tbl[ang + 1] * dz);
cp->st.n.orientation[1] = rcossin_tbl[ang];
cp->st.n.orientation[2] = FIXEDH(rcossin_tbl[ang] * dz);
cp->st.n.orientation[3] = rcossin_tbl[ang + 1];
RebuildCarMatrix(&cp->st, cp);
}
SVECTOR delta = { 0 };
int doWheels = 1;
// [D] [T]
void UpdateCarPoints(CAR_COSMETICS* carCos)
{
SVECTOR* groundCollPoints;
SVECTOR* wheelPoints;
int i;
groundCollPoints = carCos->cPoints;
wheelPoints = carCos->wheelDisp;
i = 0;
do {
groundCollPoints->vx += delta.vx;
groundCollPoints->vy -= delta.vy;
groundCollPoints->vz += delta.vz;
groundCollPoints++;
i++;
} while (i < 12);
if (doWheels)
{
i = 0;
do {
wheelPoints->vx += delta.vx;
wheelPoints->vy -= delta.vy;
wheelPoints->vz += delta.vz;
wheelPoints++;
i++;
} while (i < 4);
}
carCos->cog.vx += delta.vx;
carCos->cog.vy += delta.vy;
carCos->cog.vz -= delta.vz;
delta.vx = 0;
delta.vy = 0;
delta.vz = 0;
}
// [D] [T]
void FixCarCos(CAR_COSMETICS* carCos, int externalModelNumber)
{
delta.vx = 0;
delta.vy = 0;
delta.vz = -(carCos->wheelDisp[0].vz + carCos->wheelDisp[1].vz - 14) / 2;
doWheels = 1;
UpdateCarPoints(carCos);
if (ActiveCheats.cheat10) // [A] cheat for secret car - Fireboyd78
{
if (carCos == &car_cosmetics[4] && externalModelNumber == 12)
{
carCos->powerRatio += (carCos->powerRatio / 2);
carCos->mass *= 3;
carCos->traction *= 2;
carCos->wheelSize += (carCos->wheelSize / 4);
carCos->cog.vy -= 20;
}
}
// Super mini cars
if (ActiveCheats.cheat13)
{
int i;
carCos->wheelSize >>= 1;
carCos->headLight.vx >>= 1;
carCos->headLight.vy >>= 1;
carCos->headLight.vz >>= 1;
carCos->colBox.vx >>= 1;
carCos->colBox.vy >>= 1;
carCos->colBox.vz >>= 1;
carCos->cog.vx >>= 1;
carCos->cog.vy >>= 1;
carCos->cog.vz >>= 1;
carCos->brakeLight.vx >>= 1;
carCos->brakeLight.vy >>= 1;
carCos->brakeLight.vz >>= 1;
carCos->revLight.vx >>= 1;
carCos->revLight.vy >>= 1;
carCos->revLight.vz >>= 1;
carCos->backInd.vx >>= 1;
carCos->backInd.vy >>= 1;
carCos->backInd.vz >>= 1;
carCos->frontInd.vx >>= 1;
carCos->frontInd.vy >>= 1;
carCos->frontInd.vz >>= 1;
carCos->policeLight.vx >>= 1;
carCos->policeLight.vy >>= 1;
carCos->policeLight.vz >>= 1;
carCos->exhaust.vx >>= 1;
carCos->exhaust.vy >>= 1;
carCos->exhaust.vz >>= 1;
carCos->smoke.vx >>= 1;
carCos->smoke.vy >>= 1;
carCos->smoke.vz >>= 1;
carCos->fire.vx >>= 1;
carCos->fire.vy >>= 1;
carCos->fire.vz >>= 1;
carCos->twistRateX <<= 1;
carCos->twistRateY <<= 1;
carCos->twistRateZ <<= 1;
for (i = 0; i < 4; i++)
{
carCos->wheelDisp[i].vx >>= 1;
carCos->wheelDisp[i].vy >>= 1;
carCos->wheelDisp[i].vz >>= 1;
//carCos->wheelDisp[i].vy -= 10;
}
for (i = 0; i < 12; i++)
{
carCos->cPoints[i].vx >>= 1;
carCos->cPoints[i].vy >>= 1;
carCos->cPoints[i].vz >>= 1;
}
}
// Caine's compound heavy Vans
if (carCos == &car_cosmetics[2] && gCurrentMissionNumber == 7)
{
car_cosmetics[2].mass *= 3;
}
}
int ghost_mode = 0;
int playerghost = 0;
int playerhitcopsanyway = 0;
// [D] [T]
void GlobalTimeStep(void)
{
static RigidBodyState _tp[MAX_CARS]; // offset 0x0
static RigidBodyState _d0[MAX_CARS]; // offset 0x410
static RigidBodyState _d1[MAX_CARS]; // offset 0x820
int mayBeCollidingBits;
int howHard;
int tmp;
RigidBodyState* thisState_i;
RigidBodyState* thisState_j;
RigidBodyState* thisDelta;
CAR_DATA* cp;
CAR_DATA* c1;
RigidBodyState* st;
RigidBodyState* tp;
RigidBodyState* d0;
RigidBodyState* d1;
LONGVECTOR4 AV;
LONGQUATERNION delta_orientation;
LONGVECTOR4 normal;
LONGVECTOR4 collisionpoint;
LONGVECTOR4 lever0;
LONGVECTOR4 lever1;
LONGVECTOR4 torque;
LONGVECTOR4 pointVel0;
VECTOR velocity;
int depth;
int RKstep;
int subframe;
int j;
int strikeVel;
int i;
int do1;
int do2;
int m1;
int m2;
int strength;
int carsDentedThisFrame;
short *felony;
if (player[0].playerCarId < 0)
felony = &pedestrianFelony;
else
felony = &car_data[player[0].playerCarId].felonyRating;
StepCars();
CheckCarToCarCollisions();
// step car forces (when no collisions with them)
for (i = 0; i < num_active_cars; i++)
{
cp = active_car_list[i];
st = &cp->st;
st->n.linearVelocity[0] += cp->hd.acc[0];
st->n.linearVelocity[1] += cp->hd.acc[1];
st->n.linearVelocity[2] += cp->hd.acc[2];
st->n.angularVelocity[0] += cp->hd.aacc[0];
st->n.angularVelocity[1] += cp->hd.aacc[1];
st->n.angularVelocity[2] += cp->hd.aacc[2];
cp->hd.aacc[0] = 0;
cp->hd.aacc[1] = 0;
cp->hd.aacc[2] = 0;
if (st->n.linearVelocity[1] > 200000) // reduce vertical velocity
st->n.linearVelocity[1] = (st->n.linearVelocity[1] * 3) / 4;
if (cp->hd.speed == 0)
{
if (ABS(st->n.linearVelocity[0]) + ABS(st->n.linearVelocity[1]) + ABS(st->n.linearVelocity[2]) < 1000)
{
st->n.linearVelocity[0] = 0;
st->n.linearVelocity[1] = 0;
st->n.linearVelocity[2] = 0;
st->n.angularVelocity[0] = 0;
st->n.angularVelocity[1] = 0;
st->n.angularVelocity[2] = 0;
}
else
{
cp->hd.speed = 1;
}
}
// limit angular velocity
tmp = 0x800000;
if ((tmp < st->n.angularVelocity[0]) || (tmp = -tmp, st->n.angularVelocity[0] < tmp))
st->n.angularVelocity[0] = tmp;
tmp = 0x800000;
if ((tmp < st->n.angularVelocity[1]) || (tmp = -tmp, st->n.angularVelocity[1] < tmp))
st->n.angularVelocity[1] = tmp;
tmp = 0x800000;
if ((tmp < st->n.angularVelocity[2]) || (tmp = -tmp, st->n.angularVelocity[2] < tmp))
st->n.angularVelocity[2] = tmp;
// without precision
if (!cp->hd.mayBeColliding)
{
long* orient = st->n.orientation; // LONGQUATERNION
st->n.fposition[0] += st->n.linearVelocity[0] >> 8;
st->n.fposition[1] += st->n.linearVelocity[1] >> 8;
st->n.fposition[2] += st->n.linearVelocity[2] >> 8;
AV[0] = FixHalfRound(st->n.angularVelocity[0], 13);
AV[1] = FixHalfRound(st->n.angularVelocity[1], 13);
AV[2] = FixHalfRound(st->n.angularVelocity[2], 13);
delta_orientation[0] = -orient[1] * AV[2] + orient[2] * AV[1] + orient[3] * AV[0];
delta_orientation[1] = orient[0] * AV[2] - orient[2] * AV[0] + orient[3] * AV[1];
delta_orientation[2] = -orient[0] * AV[1] + orient[1] * AV[0] + orient[3] * AV[2];
delta_orientation[3] = -orient[0] * AV[0] - orient[1] * AV[1] - orient[2] * AV[2];
orient[0] += FIXEDH(delta_orientation[0]);
orient[1] += FIXEDH(delta_orientation[1]);
orient[2] += FIXEDH(delta_orientation[2]);
orient[3] += FIXEDH(delta_orientation[3]);
RebuildCarMatrix(st, cp);
}
}
// do collision interactions
for(subframe = 0; subframe < 4; subframe++)
{
RKstep = 0;
for (RKstep = 0; RKstep < 2; RKstep++)
{
for (i = 0; i < num_active_cars; i++)
{
cp = active_car_list[i];
// check collisions with buildings
if (RKstep != 0 && (subframe & 1) != 0 && cp->controlType == CONTROL_TYPE_PLAYER)
{
CheckScenaryCollisions(cp);
}
mayBeCollidingBits = cp->hd.mayBeColliding;
// if has any collision, process with double precision
if (mayBeCollidingBits)
{
if (RKstep == 0)
{
thisState_i = &cp->st;
thisDelta = _d0;
}
else
{
thisState_i = &_tp[i];
thisDelta = _d1;
}
long* orient = thisState_i->n.orientation; // LONGQUATERNION
thisDelta[i].n.fposition[0] = thisState_i->n.linearVelocity[0] >> 8;
thisDelta[i].n.fposition[1] = thisState_i->n.linearVelocity[1] >> 8;
thisDelta[i].n.fposition[2] = thisState_i->n.linearVelocity[2] >> 8;
AV[0] = FixHalfRound(thisState_i->n.angularVelocity[0], 13);
AV[1] = FixHalfRound(thisState_i->n.angularVelocity[1], 13);
AV[2] = FixHalfRound(thisState_i->n.angularVelocity[2], 13);
thisDelta[i].n.orientation[0] = FIXEDH(-orient[1] * AV[2] + orient[2] * AV[1] + orient[3] * AV[0]);
thisDelta[i].n.orientation[1] = FIXEDH(orient[0] * AV[2] - orient[2] * AV[0] + orient[3] * AV[1]);
thisDelta[i].n.orientation[2] = FIXEDH(-orient[0] * AV[1] + orient[1] * AV[0] + orient[3] * AV[2]);
thisDelta[i].n.orientation[3] = FIXEDH(-orient[0] * AV[0] - orient[1] * AV[1] - orient[2] * AV[2]);
thisDelta[i].n.linearVelocity[0] = 0;
thisDelta[i].n.linearVelocity[1] = 0;
thisDelta[i].n.linearVelocity[2] = 0;
thisDelta[i].n.angularVelocity[0] = 0;
thisDelta[i].n.angularVelocity[1] = 0;
thisDelta[i].n.angularVelocity[2] = 0;
for (j = 0; j < i; j++)
{
c1 = active_car_list[j];
// [A] optimized run to not use the box checking
// as it has already composed bitfield / pairs
if((mayBeCollidingBits & (1 << CAR_INDEX(c1))) != 0 && (c1->hd.speed != 0 || cp->hd.speed != 0))
{
if(CarCarCollision3(cp, c1, &depth, (VECTOR*)collisionpoint, (VECTOR*)normal))
{
if (RKstep > 0)
thisState_j = &_tp[j];
else
thisState_j = &c1->st;
int c1InfiniteMass;
int c2InfiniteMass;
collisionpoint[1] -= 0;
lever0[0] = collisionpoint[0] - cp->hd.where.t[0];
lever0[1] = collisionpoint[1] - cp->hd.where.t[1];
lever0[2] = collisionpoint[2] - cp->hd.where.t[2];
lever1[0] = collisionpoint[0] - c1->hd.where.t[0];
lever1[1] = collisionpoint[1] - c1->hd.where.t[1];
lever1[2] = collisionpoint[2] - c1->hd.where.t[2];
strength = 47 - (lever0[1] + lever1[1]) / 2;
lever0[1] += strength;
lever1[1] += strength;
strikeVel = depth * 0xc000;
pointVel0[0] = (FIXEDH(thisState_i->n.angularVelocity[1] * lever0[2] - thisState_i->n.angularVelocity[2] * lever0[1]) + thisState_i->n.linearVelocity[0]) -
(FIXEDH(thisState_j->n.angularVelocity[1] * lever1[2] - thisState_j->n.angularVelocity[2] * lever1[1]) + thisState_j->n.linearVelocity[0]);
pointVel0[1] = (FIXEDH(thisState_i->n.angularVelocity[2] * lever0[0] - thisState_i->n.angularVelocity[0] * lever0[2]) + thisState_i->n.linearVelocity[1]) -
(FIXEDH(thisState_j->n.angularVelocity[2] * lever1[0] - thisState_j->n.angularVelocity[0] * lever1[2]) + thisState_j->n.linearVelocity[1]);
pointVel0[2] = (FIXEDH(thisState_i->n.angularVelocity[0] * lever0[1] - thisState_i->n.angularVelocity[1] * lever0[0]) + thisState_i->n.linearVelocity[2]) -
(FIXEDH(thisState_j->n.angularVelocity[0] * lever1[1] - thisState_j->n.angularVelocity[1] * lever1[0]) + thisState_j->n.linearVelocity[2]);
howHard = (pointVel0[0] / 256) * (normal[0] / 32) +
(pointVel0[1] / 256) * (normal[1] / 32) +
(pointVel0[2] / 256) * (normal[2] / 32);
if (howHard > 0 && RKstep > -1)
{
if (DamageCar3D(c1, &lever1, howHard >> 1, cp))
c1->ap.needsDenting = 1;
if (DamageCar3D(cp, &lever0, howHard >> 1, c1))
cp->ap.needsDenting = 1;
if (howHard > 0x32000)
{
if (cp->controlType == CONTROL_TYPE_CIV_AI)
cp->ai.c.carMustDie = 1;
if (c1->controlType == CONTROL_TYPE_CIV_AI)
c1->ai.c.carMustDie = 1;
}
// wake up cops if they've ben touched
// [A] check player felony.
// If player touch them without felony player will be charged with felony (hit cop car)
if (numCopCars < 4 && numActiveCops < maxCopCars && GameType != GAME_GETAWAY && *felony >= FELONY_MIN_VALUE)
{
if (cp->controlType == CONTROL_TYPE_PLAYER && IS_ROADBLOCK_CAR(c1))
{
InitCopState(c1, NULL);
c1->ai.p.justPinged = 0;
}
if (c1->controlType == CONTROL_TYPE_PLAYER && IS_ROADBLOCK_CAR(cp))
{
InitCopState(cp, NULL);
cp->ai.p.justPinged = 0;
}
}
if (howHard > 0x1b00)
{
velocity.vy = -17;
velocity.vx = FIXED(cp->st.n.linearVelocity[0]);
velocity.vz = FIXED(cp->st.n.linearVelocity[2]);
collisionpoint[1] = -collisionpoint[1];
if (cp->controlType == CONTROL_TYPE_PLAYER || c1->controlType == CONTROL_TYPE_PLAYER)
{
Setup_Sparks((VECTOR*)collisionpoint, &velocity, 6, 0);
if (cp->controlType == CONTROL_TYPE_PLAYER)
SetPadVibration(*cp->ai.padid, 1);
if (c1->controlType == CONTROL_TYPE_PLAYER)
SetPadVibration(*c1->ai.padid, 1);
}
if (howHard > 0x2400)
{
int debris1;
int debris2;
debris1 = GetDebrisColour(cp);
debris2 = GetDebrisColour(c1);
Setup_Debris((VECTOR*)collisionpoint, &velocity, 3, 0);
Setup_Debris((VECTOR*)collisionpoint, &velocity, 6, debris1 << 0x10);
Setup_Debris((VECTOR*)collisionpoint, &velocity, 2, debris2 << 0x10);
}
}
}
strikeVel += (howHard * 9) / 4;
if (strikeVel > 0x69000)
strikeVel = 0x69000;
m1 = cp->ap.carCos->mass;
m2 = c1->ap.carCos->mass;
if (m2 < m1)
{
do1 = (m2 * 4096) / m1;
do2 = 4096;
}
else
{
do2 = (m1 * 4096) / m2;
do1 = 4096;
}
c1InfiniteMass = cp->controlType == CONTROL_TYPE_CUTSCENE || m1 == 0x7fff;
c2InfiniteMass = c1->controlType == CONTROL_TYPE_CUTSCENE || m2 == 0x7fff;
// [A] if any checked cars has infinite mass, reduce bouncing
// TODO: very easy difficulty
if (c1InfiniteMass || c2InfiniteMass)
strikeVel = strikeVel * 10 >> 2;
// apply force to car 0
if (!c1InfiniteMass)
{
int twistY, strength1;
if (cp->controlType == CONTROL_TYPE_PURSUER_AI && c1->controlType != CONTROL_TYPE_LEAD_AI && c1->hndType != 0)
strength1 = (strikeVel * (7 - gCopDifficultyLevel)) / 8;
else if (cp->controlType == CONTROL_TYPE_LEAD_AI && c1->hndType != 0)
strength1 = (strikeVel * 5) / 8;
else
strength1 = strikeVel;
strength1 = FIXEDH(strength1) * do1 >> 3;
velocity.vx = (normal[0] >> 3) * strength1 >> 6;
velocity.vz = (normal[2] >> 3) * strength1 >> 6;
velocity.vy = (normal[1] >> 3) * strength1 >> 6;
thisDelta[i].n.linearVelocity[0] -= velocity.vx;
thisDelta[i].n.linearVelocity[1] -= velocity.vy;
thisDelta[i].n.linearVelocity[2] -= velocity.vz;
twistY = car_cosmetics[cp->ap.model].twistRateY / 2;
torque[0] = FIXEDH(velocity.vy * lever0[2] - velocity.vz * lever0[1]) * twistY;
torque[1] = FIXEDH(velocity.vz * lever0[0] - velocity.vx * lever0[2]) * twistY;
torque[2] = FIXEDH(velocity.vx * lever0[1] - velocity.vy * lever0[0]) * twistY;
if (c1->controlType == CONTROL_TYPE_LEAD_AI)
{
torque[0] = 0;
torque[2] = 0;
}
thisDelta[i].n.angularVelocity[0] += torque[0];
thisDelta[i].n.angularVelocity[1] += torque[1];
thisDelta[i].n.angularVelocity[2] += torque[2];
}
// apply force to car 1
if (!c2InfiniteMass)
{
int twistY, strength2;
if (cp->controlType == CONTROL_TYPE_PURSUER_AI && c1->controlType != CONTROL_TYPE_LEAD_AI && c1->hndType != 0)
strength2 = (strikeVel * (7 - gCopDifficultyLevel)) / 8;
else if (c1->controlType == CONTROL_TYPE_LEAD_AI && cp->hndType != 0)
strength2 = (strikeVel * 5) / 8;
else
strength2 = strikeVel;
strength2 = FIXEDH(strength2) * do2 >> 3;
velocity.vx = (normal[0] >> 3) * strength2 >> 6;
velocity.vy = (normal[1] >> 3) * strength2 >> 6;
velocity.vz = (normal[2] >> 3) * strength2 >> 6;
thisDelta[j].n.linearVelocity[0] += velocity.vx;
thisDelta[j].n.linearVelocity[1] += velocity.vy;
thisDelta[j].n.linearVelocity[2] += velocity.vz;
twistY = car_cosmetics[c1->ap.model].twistRateY / 2;
torque[0] = FIXEDH(lever1[1] * velocity.vz - lever1[2] * velocity.vy) * twistY;
torque[1] = FIXEDH(lever1[2] * velocity.vx - lever1[0] * velocity.vz) * twistY;
torque[2] = FIXEDH(lever1[0] * velocity.vy - lever1[1] * velocity.vx) * twistY;
if (c1->controlType == CONTROL_TYPE_LEAD_AI)
{
torque[0] = 0;
torque[2] = 0;
}
thisDelta[j].n.angularVelocity[0] += torque[0];
thisDelta[j].n.angularVelocity[1] += torque[1];
thisDelta[j].n.angularVelocity[2] += torque[2];
}
if (cp->id == player[0].playerCarId || c1->id == player[0].playerCarId)
RegisterChaseHit(cp->id, c1->id);
if (cp->id == player[0].playerCarId)
CarHitByPlayer(c1, howHard);
if (c1->id == player[0].playerCarId)
CarHitByPlayer(cp, howHard);
}
} // maybe colliding
} // j loop
}
}
// update forces and rebuild matrix of the cars
for (i = 0; i < num_active_cars; i++)
{
cp = active_car_list[i];
// if has any collision, process with double precision
if (cp->hd.mayBeColliding)
{
st = &cp->st;
tp = &_tp[i];
d0 = &_d0[i];
d1 = &_d1[i];
if (RKstep == 0)
{
for (j = 0; j < 13; j++)
{
tp->v[j] = st->v[j] + (d0->v[j] >> 2);
}
RebuildCarMatrix(tp, cp);
}
else if (RKstep == 1)
{
for (j = 0; j < 13; j++)
{
st->v[j] += d0->v[j] + d1->v[j] >> 3;
}
RebuildCarMatrix(st, cp);
}
}
}
}
}
// second sub frame passed, update matrices and physics direction
// dent cars - no more than 5 cars in per frame
carsDentedThisFrame = 0;
for (i = 0; i < num_active_cars; i++)
{
cp = active_car_list[i];
UpdateCarDrawMatrix(cp);
if (cp->ap.needsDenting != 0 && ((CameraCnt + i & 3U) == 0 || carsDentedThisFrame < 5))
{
DentCar(cp);
cp->ap.needsDenting = 0;
carsDentedThisFrame++;
}
cp->hd.direction = ratan2(cp->hd.where.m[0][2], cp->hd.where.m[2][2]);
}
}
// [D] [T]
void SetShadowPoints(CAR_DATA* c0, VECTOR* outpoints)
{
int i;
SVECTOR disp;
VECTOR pointPos;
VECTOR surfaceNormal;
CAR_COSMETICS* car_cos;
sdPlane* surfacePtr;
surfacePtr = NULL;
gte_SetRotMatrix(&c0->hd.where);
gte_SetTransMatrix(&c0->hd.where);
i = 0;
car_cos = &car_cosmetics[c0->ap.model];
do {
disp = car_cos->cPoints[i];
gte_ldv0(&disp);
gte_rtv0tr();
gte_stlvnl(&pointPos);
FindSurfaceD2(&pointPos, &surfaceNormal, &outpoints[i], &surfacePtr);
i++;
} while (i < 4);
}
// [D] [T]
void LongQuaternion2Matrix(LONGQUATERNION *qua, MATRIX* m)
{
int qx = (*qua)[0];
int qy = (*qua)[1];
int qz = (*qua)[2];
int qw = (*qua)[3];
int yy = FixHalfRound(qy * qy, 11);
int zz = FixHalfRound(qz * qz, 11);
int xx = FixHalfRound(qx * qx, 11);
int zw = FixHalfRound(qz * qw, 11);
int xy = FixHalfRound(qx * qy, 11);
int xz = FixHalfRound(qx * qz, 11);
int yw = FixHalfRound(qy * qw, 11);
int xw = FixHalfRound(qx * qw, 11);
int yz = FixHalfRound(qy * qz, 11);
m->m[0][0] = ONE - (yy + zz);
m->m[1][1] = ONE - (xx + zz);
m->m[2][2] = ONE - (xx + yy);
m->m[0][1] = xy - zw;
m->m[0][2] = xz + yw;
m->m[1][0] = xy + zw;
m->m[2][0] = xz - yw;
m->m[1][2] = yz - xw;
m->m[2][1] = yz + xw;
}
// [D] [T]
void initOBox(CAR_DATA* cp)
{
SVECTOR boxDisp;
CAR_COSMETICS* car_cos;
short length;
gte_SetRotMatrix(&cp->hd.where);
gte_SetTransMatrix(&cp->hd.where);
car_cos = &car_cosmetics[cp->ap.model];
boxDisp.vx = -car_cos->cog.vx;
boxDisp.vy = -car_cos->cog.vy;
boxDisp.vz = -car_cos->cog.vz;
gte_ldv0(&boxDisp);
gte_rtv0tr();
if (cp->controlType == CONTROL_TYPE_PURSUER_AI)
{
length = (car_cos->colBox.vx * 14) / 16;
cp->hd.oBox.length[0] = length;
}
else
{
length = car_cos->colBox.vx;
cp->hd.oBox.length[0] = length;
}
gte_stlvnl(&cp->hd.oBox.location);
VECTOR svx = { length, 0 ,0 };
VECTOR svy = { 0, car_cos->colBox.vy ,0 };
VECTOR svz = { 0, 0 ,car_cos->colBox.vz };
gte_ldlvl(&svx);
gte_rtir();
cp->hd.oBox.length[1] = car_cos->colBox.vy;
gte_stsv(&cp->hd.oBox.radii[0]);
gte_ldlvl(&svy);
gte_rtir();
cp->hd.oBox.length[2] = car_cos->colBox.vz;
gte_stsv(&cp->hd.oBox.radii[1]);
gte_ldlvl(&svz);
gte_rtir();
gte_stsv(&cp->hd.oBox.radii[2]);
}
// [D] [T]
void RebuildCarMatrix(RigidBodyState* st, CAR_DATA* cp)
{
int sm;
int osm;
int qw;
int qz;
int qy;
int qx;
cp->hd.where.t[0] = st->n.fposition[0] >> 4;
cp->hd.where.t[1] = st->n.fposition[1] >> 4;
cp->hd.where.t[2] = st->n.fposition[2] >> 4;
qx = st->n.orientation[0];
qy = st->n.orientation[1];
qz = st->n.orientation[2];
qw = st->n.orientation[3];
osm = qx * qx + qy * qy + qz * qz + qw * qw;
sm = 4096;
if (osm < 1024)
{
st->n.orientation[2] = 0;
st->n.orientation[1] = 0;
st->n.orientation[0] = 0;
}
else
{
sm = 0x1800 - (osm >> 13);
st->n.orientation[0] = FIXEDH(sm * qx);
st->n.orientation[1] = FIXEDH(sm * qy);
st->n.orientation[2] = FIXEDH(sm * qz);
sm = FIXEDH(sm * qw);
}
st->n.orientation[3] = sm;
LongQuaternion2Matrix(&st->n.orientation, &cp->hd.where);
initOBox(cp);
}
// [D] [T]
void StepCarPhysics(CAR_DATA* cp)
{
HANDLING_TYPE* hp;
int car_id;
int frontWheelSpeed;
int backWheelSpeed;
if (cp->controlType == CONTROL_TYPE_NONE)
return;
hp = &handlingType[cp->hndType];
if (cp->hndType == 1)
hp->aggressiveBraking = 0;
else
hp->aggressiveBraking = 1;
#ifdef _DEBUG
extern int gStopCivCars;
if (!(gStopCivCars && cp->controlType == CONTROL_TYPE_CIV_AI))
{
active_car_list[num_active_cars] = cp;
num_active_cars++;
}
#else
active_car_list[num_active_cars] = cp;
num_active_cars++;
#endif
// [A] update wheel rotation - fix for multiplayer outside cameras
car_id = CAR_INDEX(cp);
frontWheelSpeed = cp->hd.wheel_speed / 256;
if (cp->hd.wheel[0].locked == 0)
{
FrontWheelRotation[car_id] += frontWheelSpeed;
FrontWheelRotation[car_id] &= 0xfff;
}
if (cp->hd.wheel[3].locked == 0)
{
backWheelSpeed = frontWheelSpeed;
if (cp->wheelspin != 0)
backWheelSpeed = 700;
BackWheelRotation[car_id] += backWheelSpeed;
BackWheelRotation[car_id] &= 0xfff;
}
}
// [D] [T]
void InitialiseCarHandling(void)
{
return;
}
// [D] [T]
void CheckCarToCarCollisions(void)
{
int fz;
int fx;
int sz;
int sx;
int loop1, loop2;
int lbod;
int wbod;
int hbod;
int xx, zz;
BOUND_BOX* bb;
BOUND_BOX* bb2;
BOUND_BOX* bb1;
CAR_DATA* cp;
SVECTOR* colBox;
cp = car_data;
if (ghost_mode == 1)
return;
bb = bbox;
loop1 = 0;
// build boxes
do {
if (cp->controlType == CONTROL_TYPE_NONE ||
cp->controlType == CONTROL_TYPE_PLAYER && playerghost && !playerhitcopsanyway) // [A] required as game crashing
{
bb->y1 = INT_MAX;
cp++;
bb++;
loop1++;
continue;
}
colBox = &cp->ap.carCos->colBox;
hbod = colBox->vy;
lbod = colBox->vz * 9;
wbod = colBox->vx * 9;
sx = cp->hd.where.m[0][0] * wbod / 8;
sz = cp->hd.where.m[0][2] * lbod / 8;
fx = cp->hd.where.m[2][0] * wbod / 8;
fz = cp->hd.where.m[2][2] * lbod / 8;
xx = FIXEDH(ABS(sz) + ABS(sx)) + hbod;
zz = FIXEDH(ABS(fz) + ABS(fx)) + hbod;
bb->x0 = (cp->hd.where.t[0] - xx) / 16;
bb->z0 = (cp->hd.where.t[2] - zz) / 16;
bb->x1 = (cp->hd.where.t[0] + xx) / 16;
bb->z1 = (cp->hd.where.t[2] + zz) / 16;
if (cp->st.n.linearVelocity[0] < 0)
bb->x0 = (cp->hd.where.t[0] - xx) / 16 + FIXEDH(cp->st.n.linearVelocity[0]) / 8;
else
bb->x1 = (cp->hd.where.t[0] + xx) / 16 + FIXEDH(cp->st.n.linearVelocity[0]) / 8;
if (cp->st.n.linearVelocity[2] < 0)
bb->z0 = bb->z0 + (FIXEDH(cp->st.n.linearVelocity[2]) / 8);
else
bb->z1 = bb->z1 + (FIXEDH(cp->st.n.linearVelocity[2]) / 8);
// [A] 2400 for box size - bye bye collision check performance under bridges
bb->y0 = (cp->hd.where.t[1] - colBox->vy * 2) / 16;
bb->y1 = (cp->hd.where.t[1] + colBox->vy * 4) / 16;
// make player handled cars always processed with precision
if (cp->hndType == 0)
{
cp->hd.mayBeColliding = (1 << 31);
}
loop1++;
bb++;
cp++;
} while (loop1 < MAX_CARS);
bb1 = bbox;
loop1 = 0;
// check boxes intersection with each other
do
{
bb2 = bb1 + 1;
loop2 = loop1 + 1;
while (loop2 < MAX_CARS)
{
if (bb1->y1 != INT_MAX && bb2->y1 != INT_MAX &&
bb2->x0 < bb1->x1 && bb2->z0 < bb1->z1 && bb1->x0 < bb2->x1 &&
bb1->z0 < bb2->z1 && bb2->y0 < bb1->y1 && bb1->y0 < bb2->y1)
{
car_data[loop1].hd.mayBeColliding |= (1 << loop2);
car_data[loop2].hd.mayBeColliding |= (1 << loop1);
}
loop2++;
bb2++;
}
#if defined(COLLISION_DEBUG) && !defined(PSX)
extern int gShowCollisionDebug;
if (gShowCollisionDebug == 2 && car_data[loop1].controlType != CONTROL_TYPE_NONE)
{
extern void Debug_AddLine(VECTOR & pointA, VECTOR & pointB, CVECTOR & color);
CVECTOR bbcv = { 0, 0, 250 };
CVECTOR rrcv = { 250, 0, 0 };
CVECTOR yycv = { 250, 250, 0 };
CVECTOR bbcol = car_data[loop1].hd.mayBeColliding ? rrcv : yycv;
VECTOR box_pointsy0[4] = {
{bb1->x0 * 16, bb1->y0 * 16, bb1->z0 * 16, 0}, // front left
{bb1->x1 * 16, bb1->y0 * 16, bb1->z0 * 16, 0}, // front right
{bb1->x1 * 16, bb1->y0 * 16, bb1->z1 * 16, 0}, // back right
{bb1->x0 * 16, bb1->y0 * 16, bb1->z1 * 16, 0}, // back left
};
Debug_AddLine(box_pointsy0[0], box_pointsy0[1], bbcol);
Debug_AddLine(box_pointsy0[1], box_pointsy0[2], bbcol);
Debug_AddLine(box_pointsy0[2], box_pointsy0[3], bbcol);
Debug_AddLine(box_pointsy0[3], box_pointsy0[0], bbcol);
VECTOR box_pointsy1[4] = {
{bb1->x0 * 16, bb1->y1 * 16, bb1->z0 * 16, 0}, // front left
{bb1->x1 * 16, bb1->y1 * 16, bb1->z0 * 16, 0}, // front right
{bb1->x1 * 16, bb1->y1 * 16, bb1->z1 * 16, 0}, // back right
{bb1->x0 * 16, bb1->y1 * 16, bb1->z1 * 16, 0}, // back left
};
Debug_AddLine(box_pointsy1[0], box_pointsy1[1], bbcol);
Debug_AddLine(box_pointsy1[1], box_pointsy1[2], bbcol);
Debug_AddLine(box_pointsy1[2], box_pointsy1[3], bbcol);
Debug_AddLine(box_pointsy1[3], box_pointsy1[0], bbcol);
Debug_AddLine(box_pointsy0[0], box_pointsy1[0], bbcol);
Debug_AddLine(box_pointsy0[1], box_pointsy1[1], bbcol);
Debug_AddLine(box_pointsy0[2], box_pointsy1[2], bbcol);
Debug_AddLine(box_pointsy0[3], box_pointsy1[3], bbcol);
}
#endif
bb1++;
loop1++;
} while (loop1 < MAX_CARS);
}
// [D] [T]
void ProcessCarPad(CAR_DATA* cp, u_int pad, char PadSteer, char use_analogue)
{
int player_id;
int int_steer;
int analog_angle;
PED_MODEL_TYPES whoExit;
whoExit = TANNER_MODEL;
int_steer = PadSteer;
player_id = GetPlayerId(cp);
// Handle player car controls...
if (cp->controlType == CONTROL_TYPE_PLAYER)
{
// handle car leaving
if ((pad & CAR_PAD_LEAVECAR) == CAR_PAD_LEAVECAR && player_id > -1)
{
if (!TannerStuckInCar(1, player_id))
{
if (player[player_id].dying == 0)
{
if (ActiveCheats.cheat12 && (GameLevel == 1 || GameLevel == 2)) // [A] play as Jericho cheat
whoExit = OTHER_MODEL;
ActivatePlayerPedestrian(cp, NULL, 0, NULL, whoExit);
}
}
else if (lockAllTheDoors != 0)
{
// this is to show message
gLockPickingAttempted = 1;
}
}
// Lock car if it has mission lock or fully damaged
if (gStopPadReads != 0 || MaxPlayerDamage[*cp->ai.padid] <= cp->totalDamage || gCantDrive != 0)
{
pad = CAR_PAD_HANDBRAKE;
// apply brakes
if (cp->hd.wheel_speed > 36864)
pad = CAR_PAD_BRAKE;
int_steer = 0;
use_analogue = 1;
}
// turn of horning
if (player_id > -1)
{
if (CarHasSiren(cp->ap.model) == 0)
player[player_id].horn.on = (pad >> 3) & 1;
else if ((cp->lastPad & 8U) == 0 && (pad & 8) != 0)
player[player_id].horn.on ^= 8;
}
}
if (cp->hd.autoBrake > 90)
cp->hd.autoBrake = 90;
// handle burnouts or handbrake
if (pad & CAR_PAD_HANDBRAKE)
{
cp->handbrake = 1;
}
else
{
cp->handbrake = 0;
if (pad & CAR_PAD_WHEELSPIN)
cp->wheelspin = 1;
else
cp->wheelspin = 0;
// continue without burnout
if (cp->wheelspin != 0 && cp->hd.wheel_speed > 452952)
{
cp->wheelspin = 0;
pad |= CAR_PAD_ACCEL;
}
}
// handle steering
if (use_analogue == 0)
{
if (pad & CAR_PAD_FASTSTEER)
{
// fast steer
if (pad & CAR_PAD_RIGHT)
{
cp->wheel_angle += 64;
if (cp->wheel_angle > 511)
cp->wheel_angle = 511;
}
if (pad & CAR_PAD_LEFT)
{
cp->wheel_angle -= 64;
if (cp->wheel_angle < -511)
cp->wheel_angle = -511;
}
}
else
{
// regular steer
if (pad & CAR_PAD_RIGHT)
{
cp->wheel_angle += 32;
if (cp->wheel_angle > 352)
cp->wheel_angle = 352;
}
if (pad & CAR_PAD_LEFT)
{
cp->wheel_angle -= 32;
if (cp->wheel_angle < -352)
cp->wheel_angle = -352;
}
}
if (pad & (CAR_PAD_LEFT | CAR_PAD_RIGHT))
cp->hd.autoBrake++;
else
cp->hd.autoBrake = 0;
}
else
{
if (pad & CAR_PAD_FASTSTEER)
{
int_steer *= (int_steer * int_steer) / 60;
analog_angle = ((long long)int_steer * 0x88888889) >> 32; // int_steer * 0.6
}
else
{
int_steer *= (int_steer * int_steer) / 80;
analog_angle = ((long long)int_steer * 0x66666667) >> 32; // int_steer * 0.4
}
analog_angle = (analog_angle >> 5) - (int_steer >> 0x1f);
cp->wheel_angle = analog_angle & 0xfffc;
if (analog_angle + 270U < 541)
cp->hd.autoBrake = 0;
else
cp->hd.autoBrake++;
}
// center steering
if ((pad & (CAR_PAD_LEFT | CAR_PAD_RIGHT)) == 0)
{
if (cp->wheel_angle < -64)
cp->wheel_angle += 64;
else if (cp->wheel_angle < 65)
cp->wheel_angle = 0;
else
cp->wheel_angle -= 64;
}
cp->thrust = 0;
//if (gTimeInWater != 0)
{
if (pad & CAR_PAD_BRAKE)
{
int rws;
// brakes
rws = FIXEDH(cp->hd.wheel_speed * 1500 / 1024);
if (-rws < 23)
rws = -5000;
else
rws = ((rws + 278) * -4778) >> 8;
cp->thrust = FIXEDH(cp->ap.carCos->powerRatio * rws);
}
else if (pad & CAR_PAD_ACCEL)
{
if (cp->hndType == 5)
{
// rubber band freeroamer.
// accelerate faster if closer to player
int dx, dz, dist;
dx = car_data[player[0].playerCarId].hd.where.t[0] - cp->hd.where.t[0] >> 10;
dz = car_data[player[0].playerCarId].hd.where.t[2] - cp->hd.where.t[2] >> 10;
dist = dx * dx + dz * dz;
if (dist > 40)
cp->thrust = 3000;
else if (dist > 20)
cp->thrust = 4000;
else if (dist > 9)
cp->thrust = 4900;
else
cp->thrust = 6000;
}
else
{
cp->thrust = FIXEDH(cp->ap.carCos->powerRatio * 4915);
}
if (cp->controlType == CONTROL_TYPE_PLAYER)
{
CAR_DATA* tp;
int targetCarId, cx, cz, chase_square_dist;
if (player[0].playerCarId == cp->id)
targetCarId = player[0].targetCarId;
else if (player[1].playerCarId == cp->id)
targetCarId = player[1].targetCarId;
else
targetCarId = -1;
// apply rubber banding to player car depending on distance from target car
if (targetCarId != -1)
{
tp = &car_data[targetCarId];
if (3050 < cp->ap.carCos->powerRatio)
cp->thrust = FIXEDH(tp->ap.carCos->powerRatio * 4915);
cx = cp->hd.where.t[0] - tp->hd.where.t[0] >> 10;
cz = cp->hd.where.t[2] - tp->hd.where.t[2] >> 10;
chase_square_dist = cx * cx + cz * cz;
if (chase_square_dist > 20)
cp->thrust = (cp->thrust * 8000) / 7000;
else if (chase_square_dist > 6)
cp->thrust = (cp->thrust * 7400) / 7000;
else
cp->thrust = (cp->thrust * 6700) / 7000;
}
}
if (cp->hndType == 0 && cp->hd.changingGear != 0)
cp->thrust = 1;
}
}
cp->lastPad = pad;
}
// [D] [T]
void InitSkidding(void)
{
int i;
i = 2;
do
{
player[i].wheelnoise.sound = -1;
player[i].wheelnoise.chan = -1;
player[i].skidding.sound = -1;
player[i].skidding.chan = -1;
i--;
} while (i >= 0);
}
// [D] [T]
void TerminateSkidding(int player_id)
{
int channel;
if (player_id < 2)
{
channel = player[player_id].skidding.chan;
if (channel > -1)
{
StopChannel(channel);
UnlockChannel(player[player_id].skidding.chan);
player[player_id].skidding.sound = -1;
player[player_id].skidding.chan = -1;
}
channel = player[player_id].wheelnoise.chan;
if (channel > -1)
{
StopChannel(channel);
UnlockChannel(player[player_id].wheelnoise.chan);
player[player_id].wheelnoise.sound = -1;
player[player_id].wheelnoise.chan = -1;
}
}
}
char rear_only = 0;
char continuous_track = 0;
int last_track_state = -1;
char DebrisTimer = 0;
// [D] [T]
void nose_down(CAR_DATA* cp)
{
cp->st.n.angularVelocity[0] += cp->hd.where.m[0][0] * 50;
cp->st.n.angularVelocity[1] += cp->hd.where.m[1][0] * 50;
cp->st.n.angularVelocity[2] += cp->hd.where.m[2][0] * 50;
}
// [D] [T]
void jump_debris(CAR_DATA* cp)
{
WHEEL* wheel;
int count;
VECTOR position;
VECTOR velocity;
count = 0;
wheel = cp->hd.wheel;
do
{
if (wheel->susCompression != 0)
{
DebrisTimer = 0;
cp->wasOnGround = 1;
return;
}
wheel++;
count++;
} while (count < 4);
if (cp->wasOnGround == 1)
{
cp->wasOnGround = 0;
DebrisTimer = 80;
nose_down(cp);
}
if (DebrisTimer != 0 && --DebrisTimer < 75)
{
memset((u_char*)&velocity, 0, sizeof(velocity));
velocity.vx = cp->hd.where.t[0] + ((rand() & 0x1ff) - 256);
velocity.vy = 200 - cp->hd.where.t[1];
position.vz = cp->hd.where.t[2] + ((rand() & 0x1ff) - 256);
position.vx = velocity.vx;
position.vy = velocity.vy;
position.pad = velocity.pad;
velocity.vz = position.vz;
memset((u_char*)&velocity, 0, sizeof(velocity));
Setup_Debris(&position, &velocity, 5, 0xb);
}
}
// [D] [T]
void CheckCarEffects(CAR_DATA* cp, int player_id)
{
int channel;
int skidsound;
int cnt;
int wheels_on_ground;
char lay_down_tracks;
char tracks_and_smoke;
char desired_skid;
char desired_wheel;
wheels_on_ground = 0;
lay_down_tracks = 0;
tracks_and_smoke = 0;
if (cp->controlType != CONTROL_TYPE_PLAYER &&
cp->controlType != CONTROL_TYPE_LEAD_AI &&
cp->controlType != CONTROL_TYPE_CUTSCENE)
{
TerminateSkidding(player_id);
return;
}
// PHYSICS! jumping effects, also make car nose down
jump_debris(cp);
// [A] do hubcaps here
HandlePlayerHubcaps(player_id);
cnt = 0;
do
{
if (cp->hd.wheel[cnt].susCompression != 0)
wheels_on_ground = 1;
cnt++;
} while (cnt < 4);
skidsound = 0;
// make tyre tracks and skid sound if needed
if (wheels_on_ground)
{
int rear_vel, front_vel;
rear_vel = ABS(cp->hd.rear_vel);
front_vel = ABS(cp->hd.front_vel);
if (rear_vel > 22000 || cp->wheelspin)
{
rear_only = 1;
lay_down_tracks = true;
if (cp->wheelspin == 0)
skidsound = (rear_vel - 11100) / 2 + 1;
else
skidsound = 13000;
if (skidsound > 13000)
skidsound = 13000;
}
else if (front_vel > 50000)
{
rear_only = 0;
lay_down_tracks = true;
}
tracks_and_smoke = (player_id < 2) && !(cp->hd.wheel[1].surface & 0x8) && !(cp->hd.wheel[3].surface & 0x8);
}
desired_skid = -1;
// should be on asphalt
if (skidsound != 0 && ((cp->hd.wheel[1].surface & 0x80) == 0 || (cp->hd.wheel[3].surface & 0x80) == 0))
{
if (gWeather - 1U < 2)
desired_skid = -1;
else
desired_skid = 7;
}
// play skid sound
if (desired_skid != player[player_id].skidding.sound)
{
player[player_id].skidding.sound = desired_skid;
if (player[player_id].skidding.chan > -1)
{
StopChannel(player[player_id].skidding.chan);
UnlockChannel(player[player_id].skidding.chan);
player[player_id].skidding.chan = -1;
}
if (player[player_id].skidding.sound > -1)
{
channel = StartSound(-1, SOUND_BANK_SFX, player[player_id].skidding.sound, skidsound - 10000, 4096);
player[player_id].skidding.chan = channel;
LockChannel(channel);
if (NumPlayers > 1 && NoPlayerControl == 0)
SetPlayerOwnsChannel(player[player_id].skidding.chan, player_id);
}
}
// update skidding sound
if (player[player_id].skidding.sound > -1 &&
player[player_id].skidding.chan > -1)
{
SetChannelPosition3(player[player_id].skidding.chan,
(VECTOR*)cp->hd.where.t,
(LONGVECTOR3*)cp->st.n.linearVelocity,
(skidsound - 10000) * 3 / 4 - 5000,
skidsound * 1024 / 13000 + 3072 + player_id * 8, 0);
}
// pick best wheel
desired_wheel = -1;
if (wheels_on_ground && cp->hd.speed > 10)
{
int wnse, wheel2;
wnse = cp->hd.wheel[3].surface & 7;
wheel2 = cp->hd.wheel[1].surface & 7;
if (wheel2 > wnse)
wnse = wheel2;
if (gWeather - 1U > 1)
{
if (wnse != 0)
desired_wheel = wnse + 8;
else
desired_wheel = -1;
}
else
desired_wheel = 13 - 4;
}
// play noise sound
if (desired_wheel != player[player_id].wheelnoise.sound)
{
player[player_id].wheelnoise.sound = desired_wheel;
if (player[player_id].wheelnoise.chan > -1)
{
StopChannel(player[player_id].wheelnoise.chan);
UnlockChannel(player[player_id].wheelnoise.chan);
player[player_id].wheelnoise.chan = -1;
}
if (player[player_id].wheelnoise.sound > -1)
{
channel = StartSound(-1, SOUND_BANK_SFX, player[player_id].wheelnoise.sound, -200, 4096);
player[player_id].wheelnoise.chan = channel;
LockChannel(channel);
if (NumPlayers > 1 && NoPlayerControl == 0)
SetPlayerOwnsChannel(player[player_id].wheelnoise.chan, player_id);
}
}
// update wheel noise
if (player[player_id].wheelnoise.sound > -1 &&
player[player_id].wheelnoise.chan > -1)
{
int pitch, spd;
spd = cp->hd.speed;
if (spd > 100)
spd = 100;
pitch = spd * 27;
if (pitch > 3584)
pitch = 3584;
SetChannelPosition3(player[player_id].wheelnoise.chan,
(VECTOR*)cp->hd.where.t,
(LONGVECTOR3*)cp->st.n.linearVelocity,
spd * 50 - 10000,
pitch + player_id * 8, 0);
}
player[player_id].onGrass = 0;
GetTyreTrackPositions(cp, player_id);
// make tyre tracks
if (lay_down_tracks)
{
continuous_track = (last_track_state == rear_only);
AddTyreTrack(player_id * 2, tracks_and_smoke, player_id);
AddTyreTrack(player_id * 2 + 1, tracks_and_smoke, player_id);
last_track_state = rear_only;
}
else
{
last_track_state = -1;
}
SetTyreTrackOldPositions(player_id);
}
// [D] [T]
int GetPlayerId(CAR_DATA* cp)
{
int i;
int p_id;
for (i = 0; i < 3; i++)
{
p_id = player[i].playerCarId;
if (&car_data[p_id] == cp)
return i;
}
return -1;
}
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