REDRIVER2/src_rebuild/GAME/C/WHEELFORCES.C
Ilya Shurumov c40d40bd22 - added sources rebuilt with TDR and partially decompiled intro sequence
- moved necessary data to new sources
- running intro with TOMB5 HLE emulator
2020-03-28 03:25:35 +06:00

1179 lines
31 KiB
C

#include "THISDUST.H"
#include "WHEELFORCES.H"
HANDLING_TYPE handlingType[7] = {
{0x20, 1, 0, 1},
{0x1D, 0, 0, 0},
{0x2D, 1, 1, 0},
{0x37, 1, 1, 0},
{0x44, 1, 1, 0},
{0x20, 1, 0, 1},
{0x1D, 0, 0, 0}
};
// decompiled code
// original method signature:
// void /*$ra*/ StepCars()
// line 66, offset 0x00082bd0
/* begin block 1 */
// Start line: 68
// Start offset: 0x00082BD0
// Variables:
// struct _CAR_DATA **ppCar; // $s0
// struct _CAR_DATA **end; // $s1
/* begin block 1.1 */
// Start line: 73
// Start offset: 0x00082C0C
/* end block 1.1 */
// End offset: 0x00082C0C
// End Line: 76
/* begin block 1.2 */
// Start line: 80
// Start offset: 0x00082C34
/* end block 1.2 */
// End offset: 0x00082C34
// End Line: 81
/* end block 1 */
// End offset: 0x00082C64
// End Line: 83
/* begin block 2 */
// Start line: 1357
/* end block 2 */
// End Line: 1358
/* begin block 3 */
// Start line: 132
/* end block 3 */
// End Line: 133
/* begin block 4 */
// Start line: 1358
/* end block 4 */
// End Line: 1359
/* begin block 5 */
// Start line: 1359
/* end block 5 */
// End Line: 1360
/* WARNING: Unknown calling convention yet parameter storage is locked */
void StepCars(void)
{
_CAR_DATA *cp;
_CAR_DATA **pp_Var1;
_CAR_DATA **pp_Var2;
pp_Var2 = active_car_list20 + num_active_cars;
pp_Var1 = active_car_list20;
while (pp_Var1 < pp_Var2) {
cp = *pp_Var1;
pp_Var1 = pp_Var1 + 1;
StepOneCar(cp);
}
pp_Var1 = active_car_list20;
while (pp_Var1 < pp_Var2) {
cp = *pp_Var1;
pp_Var1 = pp_Var1 + 1;
ControlCarRevs(cp);
}
return;
}
// decompiled code
// original method signature:
// void /*$ra*/ StepOneCar(struct _CAR_DATA *cp /*$s1*/)
// line 98, offset 0x00081178
/* begin block 1 */
// Start line: 99
// Start offset: 0x00081178
// Variables:
// struct CAR_LOCALS _cl; // stack offset -248
// struct CAR_LOCALS *cl; // $s3
// int i; // $s0
// int speed; // $v1
// struct _sdPlane *SurfacePtr; // stack offset -48
/* begin block 1.1 */
// Start line: 122
// Start offset: 0x00081214
// Variables:
// int a; // $v1
// int b; // $a0
/* end block 1.1 */
// End offset: 0x0008127C
// End Line: 131
/* begin block 1.2 */
// Start line: 133
// Start offset: 0x0008127C
// Variables:
// long deepestNormal[4]; // stack offset -208
// long deepestLever[4]; // stack offset -192
// long deepestPoint[4]; // stack offset -176
// int lift; // $s5
// int count; // $a0
// int friToUse; // $s6
// struct SVECTOR *carDisp; // $a1
/* begin block 1.2.1 */
// Start line: 156
// Start offset: 0x00081314
// Variables:
// long pointPos[4]; // stack offset -160
// long surfacePoint[4]; // stack offset -144
// long surfaceNormal[4]; // stack offset -128
// long lever[4]; // stack offset -112
// int newLift; // $a0
/* end block 1.2.1 */
// End offset: 0x00081410
// End Line: 196
/* begin block 1.2.2 */
// Start line: 201
// Start offset: 0x00081428
// Variables:
// long pointVel[4]; // stack offset -112
// long reaction[4]; // stack offset -96
// int strikeVel; // $a2
// int componant; // $t3
// static int frictionLimit[6]; // offset 0x0
/* begin block 1.2.2.1 */
// Start line: 209
// Start offset: 0x00081428
// Variables:
// int lever_dot_n; // $v1
// int twistY; // $v0
// int displacementsquared; // $a0
// int denom; // $a0
/* end block 1.2.2.1 */
// End offset: 0x00081428
// End Line: 209
/* begin block 1.2.2.2 */
// Start line: 226
// Start offset: 0x00081630
// Variables:
// int loss; // $v1
// int limit; // $a1
/* end block 1.2.2.2 */
// End offset: 0x0008166C
// End Line: 230
/* begin block 1.2.2.3 */
// Start line: 235
// Start offset: 0x000816B8
/* begin block 1.2.2.3.1 */
// Start line: 237
// Start offset: 0x000816CC
// Variables:
// struct VECTOR direction; // stack offset -80
/* end block 1.2.2.3.1 */
// End offset: 0x000816CC
// End Line: 237
/* begin block 1.2.2.3.2 */
// Start line: 242
// Start offset: 0x0008170C
// Variables:
// struct VECTOR direction; // stack offset -64
/* end block 1.2.2.3.2 */
// End offset: 0x00081744
// End Line: 244
/* end block 1.2.2.3 */
// End offset: 0x0008179C
// End Line: 249
/* end block 1.2.2 */
// End offset: 0x0008179C
// End Line: 250
/* begin block 1.2.3 */
// Start line: 256
// Start offset: 0x0008186C
// Variables:
// struct VECTOR offset; // stack offset -112
/* end block 1.2.3 */
// End offset: 0x00081944
// End Line: 269
/* end block 1.2 */
// End offset: 0x00081944
// End Line: 270
/* end block 1 */
// End offset: 0x0008198C
// End Line: 282
/* begin block 2 */
// Start line: 196
/* end block 2 */
// End Line: 197
/* begin block 3 */
// Start line: 211
/* end block 3 */
// End Line: 212
void StepOneCar(_CAR_DATA *cp)
{
int iVar1;
undefined4 in_zero;
undefined4 in_at;
CAR_COSMETICS *pCVar2;
uint uVar3;
int iVar4;
uint *puVar5;
int iVar6;
uint *puVar7;
int *piVar8;
int *piVar9;
int *piVar10;
int *piVar11;
int iVar12;
int iVar13;
SVECTOR *pSVar14;
int unaff_s6;
long *plVar15;
CAR_LOCALS local_f8;
int local_d0;
int local_cc;
int local_c8 [4];
int local_b8;
VECTOR local_b0;
VECTOR local_a0;
VECTOR local_90;
VECTOR local_80;
int local_70;
int local_6c;
int local_68 [4];
int local_58 [2];
VECTOR local_50;
VECTOR local_40;
_sdPlane *local_30 [2];
iVar12 = 2;
plVar15 = (cp->hd).where.t;
puVar7 = (uint *)(local_f8.vel + 2);
puVar5 = (uint *)(cp->st + 8);
local_30[0] = (_sdPlane *)0x0;
local_f8.aggressive = (uint)(byte)handlingType[cp->hndType].aggressiveBraking;
local_f8.extraangulardamping = 0;
do {
uVar3 = puVar5[10];
iVar12 = iVar12 + -1;
*puVar7 = puVar5[7];
puVar7[4] = uVar3;
puVar7 = puVar7 + -1;
*puVar5 = (*puVar5 & 0xf) + puVar5[-0x37] * 0x10;
puVar5 = puVar5 + -1;
} while (-1 < iVar12);
(cp->hd).acc[0] = 0;
(cp->hd).acc[1] = -0x1d20;
(cp->hd).acc[2] = 0;
iVar12 = local_f8.vel[0] + 0x800 >> 0xc;
iVar4 = local_f8.vel[2] + 0x800 >> 0xc;
if (iVar12 < 0) {
iVar12 = -iVar12;
}
if (iVar4 < 0) {
iVar4 = -iVar4;
}
if (iVar12 < iVar4) {
iVar4 = iVar4 + iVar12 / 2;
}
else {
iVar4 = iVar12 + iVar4 / 2;
}
pCVar2 = (cp->ap).carCos;
iVar12 = 0;
(cp->hd).speed = iVar4;
setCopControlWord(2,0,*(undefined4 *)(cp->hd).where.m);
setCopControlWord(2,0x800,*(undefined4 *)((cp->hd).where.m + 2));
setCopControlWord(2,0x1000,*(undefined4 *)((cp->hd).where.m + 4));
setCopControlWord(2,0x1800,*(undefined4 *)((cp->hd).where.m + 6));
setCopControlWord(2,0x2000,*(undefined4 *)((cp->hd).where.m + 8));
setCopControlWord(2,0x2800,*plVar15);
setCopControlWord(2,0x3000,(cp->hd).where.t[1]);
setCopControlWord(2,0x3800,(cp->hd).where.t[2]);
iVar4 = 0xc;
if ((0x800 < (cp->hd).where.m[4]) && (iVar4 = 4, cp->controlType == '\x02')) {
iVar4 = (uint)(cp->totalDamage != 0) << 2;
}
iVar13 = iVar4 + -1;
if (iVar4 != 0) {
pSVar14 = pCVar2->cPoints + iVar13;
do {
setCopReg(2,in_zero,*(undefined4 *)pSVar14);
setCopReg(2,in_at,*(undefined4 *)&pSVar14->vz);
copFunction(2,0x480012);
local_a0.vx = getCopReg(2,0x19);
local_a0.vy = getCopReg(2,0x1a);
local_a0.vz = getCopReg(2,0x1b);
local_70 = local_a0.vx - (cp->hd).where.t[0];
local_6c = local_a0.vy - (cp->hd).where.t[1];
local_68[0] = local_a0.vz - (cp->hd).where.t[2];
FindSurfaceD2(&local_a0,&local_80,&local_90,local_30);
if (((local_90.vy - local_a0.vy) - 1U < 799) &&
(iVar4 = (local_90.vy - local_a0.vy) * local_80.vy + 0x800 >> 0xc, iVar12 < iVar4)) {
unaff_s6 = 0;
local_cc = local_80.vy;
local_b0.vy = local_90.vy;
local_d0 = local_80.vx;
local_c8[0] = local_80.vz;
local_c8[2] = local_70;
local_c8[3] = local_6c;
local_b8 = local_68[0];
local_b0.vx = local_90.vx;
local_b0.vz = local_90.vz;
iVar12 = iVar4;
if (3 < iVar13) {
unaff_s6 = 3;
}
}
iVar13 = iVar13 + -1;
pSVar14 = pSVar14 + -1;
} while (iVar13 != -1);
}
if (iVar12 != 0) {
local_70 = ((local_f8.avel[1] * local_b8 - local_f8.avel[2] * local_c8[3]) + 0x800 >> 0xc) +
local_f8.vel[0];
local_6c = ((local_f8.avel[2] * local_c8[2] - local_f8.avel[0] * local_b8) + 0x800 >> 0xc) +
local_f8.vel[1];
iVar4 = local_c8[2] * local_d0 + local_c8[3] * local_cc + local_b8 * local_c8[0] + 0x800 >> 0xc;
local_68[0] = ((local_f8.avel[0] * local_c8[3] - local_f8.avel[1] * local_c8[2]) + 0x800 >> 0xc)
+ local_f8.vel[2];
iVar4 = (((local_c8[2] * local_c8[2] + local_c8[3] * local_c8[3] + local_b8 * local_b8) -
iVar4 * iVar4) * (int)car_cosmetics[(byte)(cp->ap).model].twistRateY + 0x800 >> 0xc) +
0x1000;
if (iVar4 == 0) {
trap(7);
}
iVar13 = 2;
impulse = (((local_70 >> 6) * (local_d0 >> 6) + (local_6c >> 6) * (local_cc >> 6) +
(local_68[0] >> 6) * (local_c8[0] >> 6)) / iVar4) * -0x800;
piVar11 = local_58;
piVar10 = local_c8;
piVar9 = local_68;
piVar8 = (int *)(unaff_s6 * 4 + 0xa1f10);
do {
iVar6 = *piVar8;
iVar4 = *piVar9 * 0x43;
iVar1 = -iVar6;
if ((iVar4 <= iVar6) && (iVar6 = iVar4, iVar4 < iVar1)) {
iVar6 = iVar1;
}
iVar4 = *piVar10;
piVar10 = piVar10 + -1;
piVar9 = piVar9 + -1;
piVar8 = piVar8 + -1;
iVar13 = iVar13 + -1;
*piVar11 = (impulse * iVar4 - iVar6) + 0x800 >> 0xc;
piVar11 = piVar11 + -1;
} while (-1 < iVar13);
if (20000 < impulse) {
if (gNight == 1) {
local_50.vx = DAT_00011ebc;
local_50.vy = DAT_00011ec0;
local_50.vz = DAT_00011ec4;
local_50.pad = DAT_00011ec8;
Setup_Sparks(&local_b0,&local_50,0xf,'\x01');
}
else {
local_40.vx = DAT_00011ecc;
local_40.vy = DAT_00011ed0;
local_40.vz = DAT_00011ed4;
local_40.pad = DAT_00011ed8;
Setup_Debris(&local_b0,&local_40,10,0);
}
if ((local_30[0]->surface != 9) && (local_30[0]->surface != 6)) {
iVar4 = GetPlayerId(cp);
CollisionSound((char)iVar4,cp,(impulse / 6 + (impulse >> 0x1f) >> 3) - (impulse >> 0x1f),0);
}
}
iVar13 = (cp->hd).acc[1];
(cp->hd).acc[0] = (cp->hd).acc[0] + local_68[2];
iVar4 = (cp->hd).acc[2];
(cp->hd).acc[1] = iVar13 + local_68[3];
(cp->hd).acc[2] = iVar4 + local_58[0];
(cp->hd).aacc[0] =
(cp->hd).aacc[0] + ((local_c8[3] * local_58[0] - local_b8 * local_68[3]) + 0x800 >> 0xc);
(cp->hd).aacc[1] =
(cp->hd).aacc[1] + ((local_b8 * local_68[2] - local_c8[2] * local_58[0]) + 0x800 >> 0xc);
(cp->hd).aacc[2] =
(cp->hd).aacc[2] + ((local_c8[2] * local_68[3] - local_c8[3] * local_68[2]) + 0x800 >> 0xc)
;
if (iVar12 != 0) {
local_70 = iVar12 * local_d0 + 0x800 >> 0xc;
local_6c = iVar12 * local_cc + 0x800 >> 0xc;
local_68[0] = iVar12 * local_c8[0] + 0x800 >> 0xc;
iVar4 = (cp->hd).where.t[1];
(cp->hd).where.t[0] = (cp->hd).where.t[0] + local_70;
iVar13 = (cp->hd).where.t[2];
(cp->hd).where.t[1] = iVar4 + local_6c;
iVar4 = *(int *)cp->st;
(cp->hd).where.t[2] = iVar13 + local_68[0];
iVar13 = *(int *)(cp->st + 4);
*(int *)cp->st = iVar4 + local_70 * 0x10;
*(int *)(cp->st + 4) = iVar13 + local_6c * 0x10;
*(int *)(cp->st + 8) = *(int *)(cp->st + 8) + local_68[0] * 0x10;
setCopControlWord(2,0x2800,*plVar15);
setCopControlWord(2,0x3000,(cp->hd).where.t[1]);
setCopControlWord(2,0x3800,(cp->hd).where.t[2]);
local_f8.extraangulardamping = 1;
if (0x78 < iVar12) {
*(undefined4 *)(cp->st + 0x20) = 0;
}
}
}
AddWheelForcesDriver1(cp,&local_f8);
ConvertTorqueToAngularAcceleration(cp,&local_f8);
(cp->hd).mayBeColliding = '\0';
return;
}
// decompiled code
// original method signature:
// void /*$ra*/ GetFrictionScalesDriver1(struct _CAR_DATA *cp /*$t0*/, struct CAR_LOCALS *cl /*$a1*/, int *frontFS /*$a2*/, int *rearFS /*$a3*/)
// line 288, offset 0x0008198c
/* begin block 1 */
// Start line: 289
// Start offset: 0x0008198C
// Variables:
// struct _HANDLING_TYPE *hp; // $t2
/* begin block 1.1 */
// Start line: 306
// Start offset: 0x00081A1C
// Variables:
// int q; // $v1
/* end block 1.1 */
// End offset: 0x00081A98
// End Line: 314
/* begin block 1.2 */
// Start line: 387
// Start offset: 0x00081DC8
// Variables:
// int traction; // $a0
/* end block 1.2 */
// End offset: 0x00081E20
// End Line: 393
/* end block 1 */
// End offset: 0x00081E20
// End Line: 394
/* begin block 2 */
// Start line: 800
/* end block 2 */
// End Line: 801
/* begin block 3 */
// Start line: 807
/* end block 3 */
// End Line: 808
void GetFrictionScalesDriver1(_CAR_DATA *cp,CAR_LOCALS *cl,int *frontFS,int *rearFS)
{
byte bVar1;
int iVar2;
int iVar3;
bVar1 = cp->hndType;
if (cp->thrust < 0) {
iVar2 = 0x5ad;
}
else {
iVar2 = 0x334;
if (cp->thrust < 1) {
iVar2 = 0x3a9;
}
}
*frontFS = iVar2;
if ((((cp->wheelspin == '\0') && (handlingType[cp->hndType].autoBrakeOn != '\0')) &&
(iVar2 = (int)(cp->hd).autoBrake, 0 < iVar2)) && (0 < (cp->hd).wheel_speed)) {
iVar3 = iVar2 << 1;
if (0xd < iVar2) {
iVar2 = 0xd;
iVar3 = 0x1a;
}
*frontFS = *frontFS + (iVar3 + iVar2) * 0xf;
if (handlingType[cp->hndType].autoBrakeOn == '\x02') {
while (FrameCnt != 0x78654321) {
trap(0x400);
}
}
}
if ((((cp->thrust < 0) && (0xa3d7 < (cp->hd).wheel_speed)) && (cp->hndType == '\0')) ||
(((cp->controlType == '\x02' && (cp->ai[0xf9] == 3)) && (cp->ai[0xc] != 9)))) {
(cp->hd).wheel[3].locked = '\x01';
(cp->hd).wheel[2].locked = '\x01';
(cp->hd).wheel[1].locked = '\x01';
(cp->hd).wheel[0].locked = '\x01';
}
else {
(cp->hd).wheel[3].locked = '\0';
(cp->hd).wheel[2].locked = '\0';
(cp->hd).wheel[1].locked = '\0';
(cp->hd).wheel[0].locked = '\0';
}
if (cp->handbrake == '\0') {
if (cp->wheelspin != '\0') {
*frontFS = *frontFS + 600;
}
}
else {
if (-1 < cp->thrust) {
cp->thrust = 0;
}
if ((cp->hd).wheel_speed < 1) {
iVar2 = *frontFS + -0x177;
}
else {
iVar2 = *frontFS + 0x290;
}
*frontFS = iVar2;
(cp->hd).wheel[1].locked = '\x01';
(cp->hd).wheel[3].locked = '\x01';
cp->wheelspin = '\0';
}
if ((((cp->hd).wheel_speed < 0) && (-1 < cp->thrust)) && (cp->handbrake == '\0')) {
*frontFS = *frontFS + -400;
}
*rearFS = 0x780 - *frontFS;
if (cp->wheelspin != '\0') {
cp->thrust = (short)((int)((cp->ap).carCos)->powerRatio * 5000 + 0x800 >> 0xc);
}
if (((cp->thrust < 0) && (0xa3d7 < (cp->hd).wheel_speed)) && (cl->aggressive != 0)) {
iVar2 = *frontFS * 10;
if (iVar2 < 0) {
iVar2 = iVar2 + 7;
}
*frontFS = iVar2 >> 3;
iVar2 = *rearFS * 10;
if (iVar2 < 0) {
iVar2 = iVar2 + 7;
}
*rearFS = iVar2 >> 3;
}
else {
if ((cp->hd).wheel[0].onGrass == '\0') {
iVar3 = *frontFS;
iVar2 = iVar3 * 0x24;
}
else {
iVar3 = *frontFS;
iVar2 = iVar3 * 0x28;
}
iVar2 = iVar2 - iVar3;
if (iVar2 < 0) {
iVar2 = iVar2 + 0x1f;
}
*frontFS = iVar2 >> 5;
}
iVar2 = *frontFS * (uint)(byte)handlingType[bVar1].frictionScaleRatio;
if (iVar2 < 0) {
iVar2 = iVar2 + 0x1f;
}
*frontFS = iVar2 >> 5;
iVar2 = *rearFS * (uint)(byte)handlingType[bVar1].frictionScaleRatio;
if (iVar2 < 0) {
iVar2 = iVar2 + 0x1f;
}
*rearFS = iVar2 >> 5;
if ((cp->hndType == '\x05') && (cp->ai[0] == 5)) {
*frontFS = (*frontFS * 3) / 2;
*rearFS = (*rearFS * 3) / 2;
}
iVar2 = (int)((cp->ap).carCos)->traction;
if (iVar2 != 0x1000) {
*frontFS = *frontFS * iVar2 + 0x800 >> 0xc;
*rearFS = *rearFS * iVar2 + 0x800 >> 0xc;
}
return;
}
// decompiled code
// original method signature:
// void /*$ra*/ ConvertTorqueToAngularAcceleration(struct _CAR_DATA *cp /*$a0*/, struct CAR_LOCALS *cl /*$t5*/)
// line 412, offset 0x00081e20
/* begin block 1 */
// Start line: 413
// Start offset: 0x00081E20
// Variables:
// long nose[4]; // stack offset -16
// int zd; // $a3
// int i; // $t4
// int twistY; // $t0
// int twistZ; // $v1
/* end block 1 */
// End offset: 0x00081F50
// End Line: 439
/* begin block 2 */
// Start line: 1035
/* end block 2 */
// End Line: 1036
/* begin block 3 */
// Start line: 1036
/* end block 3 */
// End Line: 1037
/* begin block 4 */
// Start line: 1055
/* end block 4 */
// End Line: 1056
/* begin block 5 */
// Start line: 1065
/* end block 5 */
// End Line: 1066
void ConvertTorqueToAngularAcceleration(_CAR_DATA *cp,CAR_LOCALS *cl)
{
short sVar1;
short sVar2;
short sVar3;
short sVar4;
short sVar5;
int iVar6;
int iVar7;
int iVar8;
int iVar9;
uint uVar10;
int iVar11;
int *piVar12;
int *piVar13;
short *psVar14;
int iVar15;
sVar1 = (cp->hd).where.m[2];
iVar6 = (cp->hd).aacc[0];
sVar2 = (cp->hd).where.m[5];
iVar7 = (cp->hd).aacc[1];
psVar14 = (cp->hd).where.m + 8;
piVar12 = (cp->hd).aacc + 2;
sVar3 = (cp->hd).where.m[8];
iVar8 = (cp->hd).aacc[2];
uVar10 = (uint)(byte)(cp->ap).model;
sVar4 = car_cosmetics[uVar10].twistRateY;
sVar5 = car_cosmetics[uVar10].twistRateZ;
iVar15 = 2;
piVar13 = cl->avel + 2;
do {
iVar11 = *piVar12 * (int)sVar4 +
((int)*psVar14 *
((int)sVar5 - (int)sVar4) *
(sVar1 * iVar6 + sVar2 * iVar7 + sVar3 * iVar8 + 0x800 >> 0xc) + *piVar13 * -0x80 +
0x800 >> 0xc);
*piVar12 = iVar11;
if (cl->extraangulardamping == 1) {
iVar9 = *piVar13;
if (iVar9 < 0) {
iVar9 = iVar9 + 7;
}
*piVar12 = iVar11 - (iVar9 >> 3);
}
piVar13 = piVar13 + -1;
psVar14 = psVar14 + -3;
iVar15 = iVar15 + -1;
piVar12 = piVar12 + -1;
} while (-1 < iVar15);
return;
}
// decompiled code
// original method signature:
// void /*$ra*/ AddWheelForcesDriver1(struct _CAR_DATA *cp /*$s2*/, struct CAR_LOCALS *cl /*$s7*/)
// line 442, offset 0x00081f50
/* begin block 1 */
// Start line: 443
// Start offset: 0x00081F50
// Variables:
// int oldSpeed; // $v1
// int frictionScale; // $fp
// int frontFS; // stack offset -96
// int rearFS; // stack offset -92
// int i; // stack offset -84
// int cdx; // stack offset -80
// int cdz; // stack offset -76
// int sdx; // stack offset -72
// int sdz; // stack offset -68
// int friction_coef; // $s6
// struct CAR_COSMETICS *car_cos; // stack offset -64
// struct _sdPlane *SurfacePtr; // stack offset -88
// int player_id; // stack offset -60
/* begin block 1.1 */
// Start line: 469
// Start offset: 0x000820A4
// Variables:
// int oldCompression; // $s5
// int newCompression; // $s3
// int susForce; // $s0
// long wheelPos[4]; // stack offset -176
// long surfacePoint[4]; // stack offset -160
// long surfaceNormal[4]; // stack offset -144
/* begin block 1.1.1 */
// Start line: 488
// Start offset: 0x00082140
// Variables:
// short typ; // $v1
/* end block 1.1.1 */
// End offset: 0x000821D8
// End Line: 497
/* begin block 1.1.2 */
// Start line: 513
// Start offset: 0x00082284
// Variables:
// int chan; // $s1
/* end block 1.1.2 */
// End offset: 0x0008231C
// End Line: 525
/* begin block 1.1.3 */
// Start line: 537
// Start offset: 0x00082380
// Variables:
// struct VECTOR force; // stack offset -128
// long pointVel[4]; // stack offset -112
// int lfx; // $a2
// int lfz; // $t2
// int sidevel; // $t0
// int slidevel; // $t1
/* begin block 1.1.3.1 */
// Start line: 554
// Start offset: 0x0008248C
/* end block 1.1.3.1 */
// End offset: 0x000824F0
// End Line: 559
/* begin block 1.1.3.2 */
// Start line: 592
// Start offset: 0x00082630
// Variables:
// int hack; // $v0
// int hx; // $v0
// int hz; // $v1
/* end block 1.1.3.2 */
// End offset: 0x00082630
// End Line: 592
/* begin block 1.1.3.3 */
// Start line: 645
// Start offset: 0x000828F0
// Variables:
// int a; // $v1
/* end block 1.1.3.3 */
// End offset: 0x00082928
// End Line: 648
/* end block 1.1.3 */
// End offset: 0x00082A04
// End Line: 671
/* end block 1.1 */
// End offset: 0x00082ADC
// End Line: 679
/* end block 1 */
// End offset: 0x00082BD0
// End Line: 694
/* begin block 2 */
// Start line: 1168
/* end block 2 */
// End Line: 1169
/* begin block 3 */
// Start line: 1172
/* end block 3 */
// End Line: 1173
void AddWheelForcesDriver1(_CAR_DATA *cp,CAR_LOCALS *cl)
{
byte bVar1;
short sVar2;
long lVar3;
VECTOR *pVVar4;
undefined4 in_zero;
undefined4 in_at;
uint uVar5;
int iVar6;
int iVar7;
int iVar8;
bool bVar9;
int iVar10;
int iVar11;
uint uVar12;
int iVar13;
int iVar14;
int iVar15;
int chan;
int iVar16;
WHEEL *pWVar17;
VECTOR local_b0;
VECTOR VStack160;
VECTOR local_90;
int local_80;
int local_7c;
int local_78;
int local_70;
int local_6c;
int local_68;
int local_60;
int local_5c;
_sdPlane *local_58;
uint local_54;
int local_50;
int local_4c;
int local_48;
int local_44;
CAR_COSMETICS *local_40;
int local_3c;
VECTOR *local_38;
VECTOR *local_34;
VECTOR *local_30;
_sdPlane **local_2c;
iVar10 = (cp->hd).speed * 3 >> 1;
if (iVar10 < 0x20) {
iVar10 = iVar10 * -0x48 + 0xe70;
}
else {
iVar10 = 0x590 - iVar10;
}
uVar5 = (cp->hd).direction;
local_58 = (_sdPlane *)0x0;
uVar12 = uVar5 & 0xfff;
uVar5 = uVar5 + (int)cp->wheel_angle & 0xfff;
local_50 = (int)rcossin_tbl[uVar12 * 2];
local_4c = (int)rcossin_tbl[uVar12 * 2 + 1];
local_48 = (int)rcossin_tbl[uVar5 * 2];
local_44 = (int)rcossin_tbl[uVar5 * 2 + 1];
local_3c = GetPlayerId(cp);
local_40 = car_cosmetics + (byte)(cp->ap).model;
GetFrictionScalesDriver1(cp,cl,&local_60,&local_5c);
(cp->hd).front_vel = 0;
(cp->hd).rear_vel = 0;
if (0xce4 < iVar10) {
iVar10 = 0xce4;
}
local_38 = &local_b0;
local_30 = &local_90;
local_54 = 3;
local_34 = &VStack160;
local_2c = &local_58;
pWVar17 = (cp->hd).wheel + 3;
do {
pVVar4 = local_38;
setCopReg(2,in_zero,*(undefined4 *)(local_40->wheelDisp + local_54));
setCopReg(2,in_at,*(undefined4 *)&local_40->wheelDisp[local_54].vz);
copFunction(2,0x480012);
lVar3 = getCopReg(2,0x19);
local_38->vx = lVar3;
lVar3 = getCopReg(2,0x1a);
pVVar4->vy = lVar3;
lVar3 = getCopReg(2,0x1b);
pVVar4->vz = lVar3;
iVar6 = FindSurfaceD2(local_38,local_30,local_34,local_2c);
bVar9 = false;
iVar6 = (iVar6 * (0x7e90 - wetness) >> 0xf) + 500;
if (local_58 != (_sdPlane *)0x0) {
bVar9 = local_58->surface == 4;
}
*(bool *)&pWVar17->onGrass = bVar9;
if (local_58 == (_sdPlane *)0x0) {
pWVar17->surface = '\0';
}
else {
sVar2 = local_58->surface;
if ((((sVar2 == 4) || (sVar2 == 6)) || (sVar2 == 0xb)) || (sVar2 == 9)) {
pWVar17->surface = -0x80;
}
else {
pWVar17->surface = '\0';
}
if (sVar2 == 8) {
pWVar17->surface = pWVar17->surface | 2;
}
else {
if (sVar2 < 9) {
if (sVar2 == 6) {
LAB_000821c4:
pWVar17->surface = pWVar17->surface | 1;
}
}
else {
if (sVar2 == 9) goto LAB_000821c4;
if (sVar2 == 0xb) {
pWVar17->surface = pWVar17->surface | 3;
}
}
}
}
bVar1 = pWVar17->susCompression;
uVar5 = (uint)bVar1;
chan = ((VStack160.vy - local_b0.vy) * local_90.vy + 0x800 >> 0xc) + 0xe;
iVar16 = chan;
if (chan < 0) {
iVar16 = 0;
}
if (800 < chan) {
iVar16 = 0xc;
}
if (cp->controlType == '\x01') {
chan = iVar16 - uVar5;
if (chan < 0) {
chan = uVar5 - iVar16;
}
if ((0xc < chan) && ((local_54 & 1) != 0)) {
chan = GetFreeChannel();
if ((1 < NumPlayers) && (NoPlayerControl == 0)) {
SetPlayerOwnsChannel(chan,(char)local_3c);
}
Start3DSoundVolPitch
(chan,1,5,(cp->hd).where.t[0],(cp->hd).where.t[1],(cp->hd).where.t[2],-0x9c4,400);
SetChannelPosition3(chan,(VECTOR *)(cp->hd).where.t,(long *)0x0,-0x9c4,400,0);
}
if (iVar16 < 0x55) {
if (0x30 < iVar16) {
SetPadVibration((int)**(char **)cp->ai,'\x03');
}
}
else {
SetPadVibration((int)**(char **)cp->ai,'\x02');
}
}
if (0x2a < iVar16) {
iVar16 = 0x2a;
}
if ((iVar16 == 0) && (bVar1 == 0)) {
pWVar17->susCompression = '\0';
}
else {
local_b0.vz = local_b0.vz - (cp->hd).where.t[2];
local_b0.vy = local_b0.vy - (cp->hd).where.t[1];
local_b0.vx = local_b0.vx - (cp->hd).where.t[0];
local_78 = 0;
local_80 = 0;
local_70 = ((cl->avel[1] * local_b0.vz - cl->avel[2] * local_b0.vy) + 0x800 >> 0xc) +
cl->vel[0];
local_6c = ((cl->avel[2] * local_b0.vx - cl->avel[0] * local_b0.vz) + 0x800 >> 0xc) +
cl->vel[1];
local_68 = ((cl->avel[0] * local_b0.vy - cl->avel[1] * local_b0.vx) + 0x800 >> 0xc) +
cl->vel[2];
chan = iVar16 * 0xe6 + uVar5 * -100;
if (pWVar17->locked == '\0') {
uVar5 = local_54 & 1;
if (uVar5 == 0) {
iVar15 = -local_48;
iVar14 = local_44;
}
else {
iVar15 = -local_50;
iVar14 = local_4c;
}
}
else {
uVar12 = ratan2(local_70 >> 6,local_68 >> 6);
uVar5 = local_54 & 1;
iVar15 = (int)rcossin_tbl[(uVar12 & 0xfff) * 2 + 1];
iVar11 = local_70;
if (local_70 < 0) {
iVar11 = -local_70;
}
iVar7 = local_68;
if (local_68 < 0) {
iVar7 = -local_68;
}
iVar14 = (int)rcossin_tbl[(uVar12 & 0xfff) * 2];
if (iVar11 + iVar7 < 8000) {
local_90.vx = 0;
local_90.vy = 0x1000;
local_90.vz = 0;
}
}
iVar11 = local_70;
if (local_70 < 0) {
iVar11 = local_70 + 0x3f;
}
iVar7 = iVar14;
if (iVar14 < 0) {
iVar7 = iVar14 + 0x3f;
}
iVar13 = local_68;
if (local_68 < 0) {
iVar13 = local_68 + 0x3f;
}
iVar8 = iVar15;
if (iVar15 < 0) {
iVar8 = iVar15 + 0x3f;
}
iVar7 = (iVar11 >> 6) * (iVar7 >> 6) + (iVar13 >> 6) * (iVar8 >> 6);
iVar11 = iVar10;
if (iVar10 < 0) {
iVar11 = iVar10 + 0x3f;
}
iVar13 = iVar7;
if (iVar7 < 0) {
iVar13 = iVar7 + 0x3f;
}
iVar11 = (iVar11 >> 6) * (iVar13 >> 6);
if (iVar11 < 0) {
iVar11 = -iVar11;
}
if (iVar7 < 0xc351) {
if (iVar7 < -50000) {
LAB_00082604:
iVar7 = -0x30d4;
}
else {
iVar7 = iVar10 * iVar7 + 0x800 >> 0xc;
if (0x30d4 < iVar7) goto LAB_000825f4;
if (iVar7 < -0x30d4) goto LAB_00082604;
}
}
else {
LAB_000825f4:
iVar7 = 0x30d4;
}
if (uVar5 == 0) {
iVar13 = local_60 * iVar7 + 0x800;
iVar7 = iVar13 >> 0xc;
if (pWVar17->locked == '\0') {
if (cp->controlType == '\x03') {
local_80 = local_80 + local_48 * cp->thrust;
local_78 = local_78 + local_44 * cp->thrust;
}
}
else {
iVar7 = (iVar13 >> 0xd) + iVar7 >> 1;
iVar13 = ((-iVar7 * iVar14 + 0x800 >> 0xc) * local_44 -
(-iVar7 * iVar15 + 0x800 >> 0xc) * local_48) + 0x400 >> 0xb;
local_80 = local_80 + iVar13 * local_44;
local_78 = local_78 + -iVar13 * local_48;
}
if ((cp->hd).front_vel < iVar11) {
(cp->hd).front_vel = iVar11;
}
}
else {
if (pWVar17->locked == '\0') {
iVar7 = local_5c * iVar7 + 0x800 >> 0xc;
if ((handlingType[cp->hndType].autoBrakeOn != '\0') && (0 < iVar7 * cp->wheel_angle)) {
(cp->hd).autoBrake = -1;
}
local_80 = local_80 + -iVar15 * (int)cp->thrust;
local_78 = local_78 + iVar14 * (int)cp->thrust;
}
else {
iVar7 = local_60 * iVar7 + 0x2000 >> 0xe;
}
if ((cp->hd).rear_vel < iVar11) {
(cp->hd).rear_vel = iVar11;
}
}
local_80 = local_80 + (chan * local_90.vx - iVar7 * iVar14) + cl->vel[0] * -0xc;
local_78 = local_78 + (chan * local_90.vz - iVar7 * iVar15) + cl->vel[2] * -0xc;
if ((pWVar17->surface & 7) == 1) {
local_80 = local_80 + cl->vel[0] * -0x4b;
local_78 = local_78 + cl->vel[2] * -0x4b;
}
iVar15 = (int)(cp->hd).where.m[4];
if (iVar15 < 0x800) {
iVar15 = 0x1000 - iVar15;
if (iVar15 < 0x1001) {
iVar15 = 0x1000 - (iVar15 * iVar15 + 0x800 >> 0xc);
}
else {
iVar15 = 0;
}
iVar6 = iVar6 * iVar15 + 0x800 >> 0xc;
}
if (local_90.vy < 0xccc) {
iVar6 = iVar6 * local_90.vy * 5 >> 0xe;
}
local_7c = chan * local_90.vy + cl->vel[1] * -0xc + 0x800 >> 0xc;
local_80 = (local_80 + 0x800 >> 0xc) * iVar6 >> 0xc;
local_78 = (local_78 + 0x800 >> 0xc) * iVar6 >> 0xc;
if (cp->controlType == '\x03') {
if (gCopDifficultyLevel == 2) {
local_b0.vy = local_b0.vy * 0xc;
}
else {
local_b0.vy = local_b0.vy * 0x13;
}
if (local_b0.vy < 0) {
local_b0.vy = local_b0.vy + 0x1f;
}
local_b0.vy = local_b0.vy >> 5;
}
chan = (cp->hd).acc[1];
(cp->hd).acc[0] = (cp->hd).acc[0] + local_80;
iVar6 = (cp->hd).acc[2];
(cp->hd).acc[1] = chan + local_7c;
(cp->hd).acc[2] = iVar6 + local_78;
(cp->hd).aacc[0] =
(cp->hd).aacc[0] + ((local_b0.vy * local_78 - local_b0.vz * local_7c) + 0x800 >> 0xc);
(cp->hd).aacc[1] =
(cp->hd).aacc[1] + ((local_b0.vz * local_80 - local_b0.vx * local_78) + 0x800 >> 0xc);
(cp->hd).aacc[2] =
(cp->hd).aacc[2] + ((local_b0.vx * local_7c - local_b0.vy * local_80) + 0x800 >> 0xc);
pWVar17->susCompression = (char)iVar16;
}
pWVar17 = pWVar17 + -1;
local_54 = local_54 - 1;
} while (-1 < (int)local_54);
if (((cp->hd).wheel[1].susCompression == '\0') && ((cp->hd).wheel[3].susCompression == '\0')) {
uVar5 = 0x1a0000;
if (cp->thrust < 1) {
uVar5 = 0;
if (-1 < cp->thrust) goto LAB_00082b9c;
uVar5 = 0xffed0000;
}
uVar5 = uVar5 | 0x4000;
}
else {
iVar10 = cl->vel[0];
if (iVar10 < 0) {
iVar10 = iVar10 + 0x3f;
}
if (local_50 < 0) {
local_50 = local_50 + 0x3f;
}
iVar6 = cl->vel[2];
if (iVar6 < 0) {
iVar6 = iVar6 + 0x3f;
}
if (local_4c < 0) {
local_4c = local_4c + 0x3f;
}
uVar5 = (iVar10 >> 6) * (local_50 >> 6) + (iVar6 >> 6) * (local_4c >> 6);
}
LAB_00082b9c:
(cp->hd).wheel_speed = uVar5;
return;
}