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InitSkids matching

This commit is contained in:
Dethrace Labs 2025-09-19 07:02:50 +12:00 committed by Dethrace Engineering Department
parent fab790f11d
commit 5e81408978
2 changed files with 137 additions and 145 deletions
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6
src/DETHRACE/CMakeLists.txt
View File

@ -60,6 +60,7 @@ if(DETHRACE_REPLAY_DEBUG)
endif()
target_sources(dethrace_obj PRIVATE
common/skidmark.c
common/brucetrk.c
common/brucetrk.h
common/car.c
@ -148,8 +149,7 @@ target_sources(dethrace_obj PRIVATE
common/raycast.h
common/replay.c
common/replay.h
common/skidmark.c
common/skidmark.h
common/sound.c
common/sound.h
common/spark.c
@ -193,7 +193,7 @@ if(MSVC_42_FOR_RECCMP)
set_target_properties(dethrace PROPERTIES OUTPUT_NAME "CARM95")
target_link_options(dethrace PRIVATE /INCREMENTAL:NO /subsystem:windows /ENTRY:mainCRTStartup)
set_source_files_properties(common/car.c PROPERTIES COMPILE_FLAGS "/FAs")
set_source_files_properties(common/skidmark.c PROPERTIES COMPILE_FLAGS "/FAs")
# set_source_files_properties(common/brucetrk.c PROPERTIES COMPILE_FLAGS "/G5")

276
src/DETHRACE/common/skidmark.c
View File

@ -21,45 +21,18 @@ char* gMaterial_names[2] = { "OILSMEAR.MAT", "GIBSMEAR.MAT" };
// GLOBAL: CARM95 0x00530190
tSkid gSkids[100];
// IDA: void __usercall StretchMark(tSkid *pMark@<EAX>, br_vector3 *pFrom@<EDX>, br_vector3 *pTo@<EBX>, br_scalar pTexture_start)
// FUNCTION: CARM95 0x00401e7c
void StretchMark(tSkid* pMark, br_vector3* pFrom, br_vector3* pTo, br_scalar pTexture_start) {
br_vector3 temp;
br_vector3* rows;
br_scalar len;
br_model* model;
rows = (br_vector3*)&pMark->actor->t.t.mat;
BrVector3Sub(&temp, pTo, pFrom);
len = BrVector3Length(&temp);
rows[2].v[0] = pMark->normal.v[2] * temp.v[1] - pMark->normal.v[1] * temp.v[2];
rows[2].v[1] = pMark->normal.v[0] * temp.v[2] - pMark->normal.v[2] * temp.v[0];
rows[2].v[2] = pMark->normal.v[1] * temp.v[0] - pMark->normal.v[0] * temp.v[1];
if (len > BR_SCALAR_EPSILON) {
rows[2].v[0] = 0.05f / len * rows[2].v[0];
rows[2].v[1] = 0.05f / len * rows[2].v[1];
rows[2].v[2] = 0.05f / len * rows[2].v[2];
rows->v[0] = len / len * temp.v[0];
rows->v[1] = len / len * temp.v[1];
rows->v[2] = len / len * temp.v[2];
BrVector3Add(&temp, pTo, pFrom);
BrVector3Scale(&pMark->pos, &temp, 0.5f);
rows[3] = pMark->pos;
model = pMark->actor->model;
model->vertices[1].map.v[0] = pTexture_start / 0.05f;
model->vertices[0].map.v[0] = model->vertices[1].map.v[0];
model->vertices[3].map.v[0] = (pTexture_start + len) / 0.05f;
model->vertices[2].map.v[0] = model->vertices[3].map.v[0];
BrModelUpdate(model, BR_MODU_ALL);
}
// IDA: void __usercall AdjustSkid(int pSkid_num@<EAX>, br_matrix34 *pMatrix@<EDX>, int pMaterial_index@<EBX>)
// FUNCTION: CARM95 0x00401000
void AdjustSkid(int pSkid_num, br_matrix34* pMatrix, int pMaterial_index) {
memcpy(&gSkids[pSkid_num].actor->t.t.mat, pMatrix, sizeof(br_matrix34));
memcpy(&gSkids[pSkid_num].pos, &pMatrix->m[3][0], sizeof(br_vector3));
gSkids[pSkid_num].actor->material = MaterialFromIndex(pMaterial_index);
gSkids[pSkid_num].actor->render_style = BR_RSTYLE_DEFAULT;
}
// IDA: br_material* __usercall MaterialFromIndex@<EAX>(int pIndex@<EAX>)
// FUNCTION: CARM95 0x00401088
br_material* MaterialFromIndex(int pIndex) {
if (pIndex > -2) {
return gCurrent_race.material_modifiers[pIndex].skid_mark_material;
} else {
@ -67,48 +40,6 @@ br_material* MaterialFromIndex(int pIndex) {
}
}
// IDA: void __usercall AdjustSkid(int pSkid_num@<EAX>, br_matrix34 *pMatrix@<EDX>, int pMaterial_index@<EBX>)
// FUNCTION: CARM95 0x00401000
void AdjustSkid(int pSkid_num, br_matrix34* pMatrix, int pMaterial_index) {
gSkids[pSkid_num].actor->t.t.mat = *pMatrix;
gSkids[pSkid_num].pos.v[0] = pMatrix->m[3][0];
gSkids[pSkid_num].pos.v[1] = pMatrix->m[3][1];
gSkids[pSkid_num].pos.v[2] = pMatrix->m[3][2];
gSkids[pSkid_num].actor->material = MaterialFromIndex(pMaterial_index);
gSkids[pSkid_num].actor->render_style = BR_RSTYLE_DEFAULT;
}
// IDA: int __usercall FarFromLine2D@<EAX>(br_vector3 *pPt@<EAX>, br_vector3 *pL1@<EDX>, br_vector3 *pL2@<EBX>)
// FUNCTION: CARM95 0x004020dc
int FarFromLine2D(br_vector3* pPt, br_vector3* pL1, br_vector3* pL2) {
br_vector2 line;
br_vector2 to_pt;
br_scalar line_len;
br_scalar cross;
line.v[0] = pL2->v[0] - pL1->v[0];
line.v[1] = pL2->v[2] - pL1->v[2];
to_pt.v[0] = pPt->v[0] - pL2->v[0];
to_pt.v[1] = pPt->v[2] - pL2->v[2];
cross = -line.v[0] * to_pt.v[1] + to_pt.v[0] * line.v[1];
line_len = sqrt(line.v[0] * line.v[0] + line.v[1] * line.v[1]);
return fabs(cross) > line_len * 0.050000001;
}
// IDA: int __usercall Reflex2D@<EAX>(br_vector3 *pPt@<EAX>, br_vector3 *pL1@<EDX>, br_vector3 *pL2@<EBX>)
// FUNCTION: CARM95 0x00402179
int Reflex2D(br_vector3* pPt, br_vector3* pL1, br_vector3* pL2) {
br_vector2 line;
br_vector2 to_pt;
line.v[0] = pL2->v[0] - pL1->v[0];
line.v[1] = pL2->v[2] - pL1->v[2];
to_pt.v[0] = pPt->v[0] - pL2->v[0];
to_pt.v[1] = pPt->v[2] - pL2->v[2];
return to_pt.v[1] * line.v[1] + to_pt.v[0] * line.v[0] < 0.0;
}
// IDA: void __cdecl InitSkids()
// FUNCTION: CARM95 0x004010c8
void InitSkids(void) {
@ -122,36 +53,32 @@ void InitSkids(void) {
#endif
for (mat = 0; mat < COUNT_OF(gMaterial_names); mat++) {
if (gProgram_state.sausage_eater_mode) {
str = gBoring_material_names[mat];
} else {
str = gMaterial_names[mat];
}
gMaterial[mat] = BrMaterialFind(str);
gMaterial[mat] = BrMaterialFind(gProgram_state.sausage_eater_mode ? gBoring_material_names[mat] : gMaterial_names[mat]);
if (gMaterial[mat] == NULL) {
if (gProgram_state.sausage_eater_mode) {
str = gBoring_material_names[mat];
} else {
str = gMaterial_names[mat];
}
#if defined(DETHRACE_FIX_BUGS)
// Avoid modification of read-only data by strtok.
strcpy(mat_name, str);
str = mat_name;
strcpy(mat_name, gProgram_state.sausage_eater_mode ? gBoring_material_names[mat] : gMaterial_names[mat]);
str = strtok(mat_name, ".");
#else
str = strtok(gProgram_state.sausage_eater_mode ? gBoring_material_names[mat] : gMaterial_names[mat], ".");
#endif
sl = strlen(strtok(str, "."));
strcpy(str + sl, ".PIX");
sl = strlen(str);
strcat(str, ".PIX");
BrMapAdd(LoadPixelmap(str));
strcpy(str + sl, ".MAT");
str[sl] = '\0';
strcat(str, ".MAT");
gMaterial[mat] = LoadMaterial(str);
if (gMaterial[mat] == NULL) {
BrFatal("..\\..\\source\\common\\skidmark.c", 207, "Couldn't find %s", gMaterial_names[mat]);
}
BrFatal("C:\\Msdev\\Projects\\DethRace\\SKIDMARK.C", 207, "Couldn't find %s", gMaterial_names[mat]);
} else {
#ifdef DETHRACE_3DFX_PATCH
GlorifyMaterial(&gMaterial[mat], 1);
GlorifyMaterial(&gMaterial[mat], 1);
#endif
BrMaterialAdd(gMaterial[mat]);
BrMaterialAdd(gMaterial[mat]);
}
}
#ifdef DETHRACE_3DFX_PATCH
else {
@ -210,52 +137,6 @@ void HideSkids(void) {
}
}
// IDA: br_scalar __usercall SkidLen@<ST0>(int pSkid@<EAX>)
// FUNCTION: CARM95 0x004021f1
br_scalar SkidLen(int pSkid) {
return sqrt(
gSkids[pSkid].actor->t.t.mat.m[0][2] * gSkids[pSkid].actor->t.t.mat.m[0][2]
+ gSkids[pSkid].actor->t.t.mat.m[0][1] * gSkids[pSkid].actor->t.t.mat.m[0][1]
+ gSkids[pSkid].actor->t.t.mat.m[0][0] * gSkids[pSkid].actor->t.t.mat.m[0][0]);
}
// IDA: void __usercall SkidSection(tCar_spec *pCar@<EAX>, int pWheel_num@<EDX>, br_vector3 *pPos@<EBX>, int pMaterial_index@<ECX>)
// FUNCTION: CARM95 0x00401a22
void SkidSection(tCar_spec* pCar, int pWheel_num, br_vector3* pPos, int pMaterial_index) {
// GLOBAL: CARM95 0x530c88
static tU16 skid;
br_material* material;
if (BrVector3Dot(&pCar->prev_nor[pWheel_num], &pCar->nor[pWheel_num]) < 0.99699998f
|| (float)fabs(BrVector3Dot(&pCar->nor[pWheel_num], pPos) - BrVector3Dot(&pCar->prev_skid_pos[pWheel_num], &pCar->nor[pWheel_num])) > 0.01f) {
pCar->old_skidding &= ~(1 << pWheel_num);
pCar->old_skid[pWheel_num] = -1;
return;
}
material = MaterialFromIndex(pMaterial_index);
if (pCar->old_skid[pWheel_num] >= COUNT_OF(gSkids)
|| gSkids[pCar->old_skid[pWheel_num]].actor->material != material
|| SkidLen(pCar->old_skid[pWheel_num]) > 0.5f
|| FarFromLine2D(pPos, &pCar->skid_line_start[pWheel_num], &pCar->skid_line_end[pWheel_num])
|| Reflex2D(pPos, &pCar->skid_line_start[pWheel_num], &pCar->prev_skid_pos[pWheel_num])) {
pCar->skid_line_start[pWheel_num] = pCar->prev_skid_pos[pWheel_num];
pCar->skid_line_end[pWheel_num] = *pPos;
gSkids[skid].actor->render_style = BR_RSTYLE_DEFAULT;
gSkids[skid].actor->material = material;
gSkids[skid].normal = pCar->nor[pWheel_num];
StretchMark(&gSkids[skid], &pCar->prev_skid_pos[pWheel_num], pPos, pCar->total_length[pWheel_num]);
PipeSingleSkidAdjustment(skid, &gSkids[skid].actor->t.t.mat, pMaterial_index);
pCar->old_skid[pWheel_num] = skid;
skid = (skid + 1) % COUNT_OF(gSkids);
} else {
StretchMark(&gSkids[pCar->old_skid[pWheel_num]], &pCar->skid_line_start[pWheel_num], pPos, pCar->total_length[pWheel_num]);
PipeSingleSkidAdjustment(pCar->old_skid[pWheel_num], &gSkids[pCar->old_skid[pWheel_num]].actor->t.t.mat, pMaterial_index);
}
}
// IDA: void __usercall SkidMark(tCar_spec *pCar@<EAX>, int pWheel_num@<EDX>)
// FUNCTION: CARM95 0x004014e5
void SkidMark(tCar_spec* pCar, int pWheel_num) {
@ -337,6 +218,117 @@ void SkidMark(tCar_spec* pCar, int pWheel_num) {
}
}
// IDA: void __usercall SkidSection(tCar_spec *pCar@<EAX>, int pWheel_num@<EDX>, br_vector3 *pPos@<EBX>, int pMaterial_index@<ECX>)
// FUNCTION: CARM95 0x00401a22
void SkidSection(tCar_spec* pCar, int pWheel_num, br_vector3* pPos, int pMaterial_index) {
// GLOBAL: CARM95 0x530c88
static tU16 skid;
br_material* material;
if (BrVector3Dot(&pCar->prev_nor[pWheel_num], &pCar->nor[pWheel_num]) < 0.99699998f
|| (float)fabs(BrVector3Dot(&pCar->nor[pWheel_num], pPos) - BrVector3Dot(&pCar->prev_skid_pos[pWheel_num], &pCar->nor[pWheel_num])) > 0.01f) {
pCar->old_skidding &= ~(1 << pWheel_num);
pCar->old_skid[pWheel_num] = -1;
return;
}
material = MaterialFromIndex(pMaterial_index);
if (pCar->old_skid[pWheel_num] >= COUNT_OF(gSkids)
|| gSkids[pCar->old_skid[pWheel_num]].actor->material != material
|| SkidLen(pCar->old_skid[pWheel_num]) > 0.5f
|| FarFromLine2D(pPos, &pCar->skid_line_start[pWheel_num], &pCar->skid_line_end[pWheel_num])
|| Reflex2D(pPos, &pCar->skid_line_start[pWheel_num], &pCar->prev_skid_pos[pWheel_num])) {
pCar->skid_line_start[pWheel_num] = pCar->prev_skid_pos[pWheel_num];
pCar->skid_line_end[pWheel_num] = *pPos;
gSkids[skid].actor->render_style = BR_RSTYLE_DEFAULT;
gSkids[skid].actor->material = material;
gSkids[skid].normal = pCar->nor[pWheel_num];
StretchMark(&gSkids[skid], &pCar->prev_skid_pos[pWheel_num], pPos, pCar->total_length[pWheel_num]);
PipeSingleSkidAdjustment(skid, &gSkids[skid].actor->t.t.mat, pMaterial_index);
pCar->old_skid[pWheel_num] = skid;
skid = (skid + 1) % COUNT_OF(gSkids);
} else {
StretchMark(&gSkids[pCar->old_skid[pWheel_num]], &pCar->skid_line_start[pWheel_num], pPos, pCar->total_length[pWheel_num]);
PipeSingleSkidAdjustment(pCar->old_skid[pWheel_num], &gSkids[pCar->old_skid[pWheel_num]].actor->t.t.mat, pMaterial_index);
}
}
// IDA: void __usercall StretchMark(tSkid *pMark@<EAX>, br_vector3 *pFrom@<EDX>, br_vector3 *pTo@<EBX>, br_scalar pTexture_start)
// FUNCTION: CARM95 0x00401e7c
void StretchMark(tSkid* pMark, br_vector3* pFrom, br_vector3* pTo, br_scalar pTexture_start) {
br_vector3 temp;
br_vector3* rows;
br_scalar len;
br_model* model;
rows = (br_vector3*)&pMark->actor->t.t.mat;
BrVector3Sub(&temp, pTo, pFrom);
len = BrVector3Length(&temp);
rows[2].v[0] = pMark->normal.v[2] * temp.v[1] - pMark->normal.v[1] * temp.v[2];
rows[2].v[1] = pMark->normal.v[0] * temp.v[2] - pMark->normal.v[2] * temp.v[0];
rows[2].v[2] = pMark->normal.v[1] * temp.v[0] - pMark->normal.v[0] * temp.v[1];
if (len > BR_SCALAR_EPSILON) {
rows[2].v[0] = 0.05f / len * rows[2].v[0];
rows[2].v[1] = 0.05f / len * rows[2].v[1];
rows[2].v[2] = 0.05f / len * rows[2].v[2];
rows->v[0] = len / len * temp.v[0];
rows->v[1] = len / len * temp.v[1];
rows->v[2] = len / len * temp.v[2];
BrVector3Add(&temp, pTo, pFrom);
BrVector3Scale(&pMark->pos, &temp, 0.5f);
rows[3] = pMark->pos;
model = pMark->actor->model;
model->vertices[1].map.v[0] = pTexture_start / 0.05f;
model->vertices[0].map.v[0] = model->vertices[1].map.v[0];
model->vertices[3].map.v[0] = (pTexture_start + len) / 0.05f;
model->vertices[2].map.v[0] = model->vertices[3].map.v[0];
BrModelUpdate(model, BR_MODU_ALL);
}
}
// IDA: int __usercall FarFromLine2D@<EAX>(br_vector3 *pPt@<EAX>, br_vector3 *pL1@<EDX>, br_vector3 *pL2@<EBX>)
// FUNCTION: CARM95 0x004020dc
int FarFromLine2D(br_vector3* pPt, br_vector3* pL1, br_vector3* pL2) {
br_vector2 line;
br_vector2 to_pt;
br_scalar line_len;
br_scalar cross;
line.v[0] = pL2->v[0] - pL1->v[0];
line.v[1] = pL2->v[2] - pL1->v[2];
to_pt.v[0] = pPt->v[0] - pL2->v[0];
to_pt.v[1] = pPt->v[2] - pL2->v[2];
cross = -line.v[0] * to_pt.v[1] + to_pt.v[0] * line.v[1];
line_len = sqrt(line.v[0] * line.v[0] + line.v[1] * line.v[1]);
return fabs(cross) > line_len * 0.050000001;
}
// IDA: int __usercall Reflex2D@<EAX>(br_vector3 *pPt@<EAX>, br_vector3 *pL1@<EDX>, br_vector3 *pL2@<EBX>)
// FUNCTION: CARM95 0x00402179
int Reflex2D(br_vector3* pPt, br_vector3* pL1, br_vector3* pL2) {
br_vector2 line;
br_vector2 to_pt;
line.v[0] = pL2->v[0] - pL1->v[0];
line.v[1] = pL2->v[2] - pL1->v[2];
to_pt.v[0] = pPt->v[0] - pL2->v[0];
to_pt.v[1] = pPt->v[2] - pL2->v[2];
return to_pt.v[1] * line.v[1] + to_pt.v[0] * line.v[0] < 0.0;
}
// IDA: br_scalar __usercall SkidLen@<ST0>(int pSkid@<EAX>)
// FUNCTION: CARM95 0x004021f1
br_scalar SkidLen(int pSkid) {
return sqrt(
gSkids[pSkid].actor->t.t.mat.m[0][2] * gSkids[pSkid].actor->t.t.mat.m[0][2]
+ gSkids[pSkid].actor->t.t.mat.m[0][1] * gSkids[pSkid].actor->t.t.mat.m[0][1]
+ gSkids[pSkid].actor->t.t.mat.m[0][0] * gSkids[pSkid].actor->t.t.mat.m[0][0]);
}
// IDA: void __usercall InitCarSkidStuff(tCar_spec *pCar@<EAX>)
// FUNCTION: CARM95 0x00402282
void InitCarSkidStuff(tCar_spec* pCar) {