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"ApplyPhysicsToCars 90% matching"

This commit is contained in:
Dethrace Labs 2025-09-18 14:07:25 +12:00
parent e02b202941
commit b7d808ebb8
1 changed files with 61 additions and 42 deletions
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103
src/DETHRACE/common/car.c
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@ -1277,7 +1277,7 @@ void ApplyPhysicsToCars(tU32 last_frame_time, tU32 pTime_difference) {
int step_number;
int dam_index;
static int steering_locked;
tCar_spec* car = NULL;
tCar_spec* car;
tCollision_info* car_info;
tNon_car_spec* non_car;
tU32 time_step;
@ -1292,7 +1292,11 @@ void ApplyPhysicsToCars(tU32 last_frame_time, tU32 pTime_difference) {
ForceRebuildActiveCarList();
}
if (gLast_mechanics_time < last_frame_time) {
#ifdef DETHRACE_FIX_BUGS
gLast_mechanics_time = harness_game_config.physics_step_time * (last_frame_time / harness_game_config.physics_step_time);
#else
gLast_mechanics_time = 40 * (last_frame_time / 40);
#endif
}
GetNonCars();
if (frame_end_time <= gLast_mechanics_time) {
@ -1304,7 +1308,15 @@ void ApplyPhysicsToCars(tU32 last_frame_time, tU32 pTime_difference) {
gDoing_physics = 1;
PrepareCars(last_frame_time);
gDt = harness_game_config.physics_step_time / 1000.0; // 0.04;
#ifdef DETHRACE_FIX_BUGS
time_step = harness_game_config.physics_step_time;
gDt = harness_game_config.physics_step_time / 1000.0;
#else
time_step = 40;
gDt = 40 / 1000.0;
#endif
gMechanics_time_sync = pTime_difference - (gLast_mechanics_time - last_frame_time);
while (gLast_mechanics_time < frame_end_time && step_number < 5) {
step_number++;
@ -1315,63 +1327,70 @@ void ApplyPhysicsToCars(tU32 last_frame_time, tU32 pTime_difference) {
}
for (i = 0; i < gNum_active_cars; i++) {
car = gActive_car_list[i];
car_info = car;
car->dt = -1.f;
if (car->message.type == NETMSGID_MECHANICS && car->message.time >= gLast_mechanics_time && car->message.time <= gLast_mechanics_time + harness_game_config.physics_step_time) {
if (car->message.type == NETMSGID_MECHANICS && car->message.time >= gLast_mechanics_time && car->message.time <= gLast_mechanics_time + time_step) {
// time between car message and next mechanics
car->dt = (gLast_mechanics_time + harness_game_config.physics_step_time - car->message.time) / 1000.0f;
car->dt = (gLast_mechanics_time + time_step - car->message.time) / 1000.0f;
// if the time between car message and next mechanics is about equal to timestep
if (car->dt >= gDt - 0.0001f) {
GetNetPos(car);
} else if (gNet_mode == eNet_mode_host) {
car->dt = -1.f;
} else {
for (dam_index = 0; dam_index < COUNT_OF(car->damage_units); dam_index++) {
if (car->damage_units[dam_index].damage_level < car->message.damage[dam_index]) {
car->dt = -1.f;
break;
if (car->dt < gDt - 0.0001) {
if (gNet_mode != eNet_mode_host) {
for (dam_index = 0; dam_index < COUNT_OF(car->damage_units); dam_index++) {
if (car->damage_units[dam_index].damage_level < car->message.damage[dam_index]) {
car->dt = -1.f;
break;
}
}
if (car->dt >= 0.f) {
GetNetPos(car);
}
} else {
car->dt = -1.f;
}
if (car->dt >= 0.f) {
GetNetPos(car);
}
} else {
GetNetPos(car);
}
}
if (!car->disabled
&& (!car->doing_nothing_flag || (car->driver >= eDriver_net_human && (!gPalette_fade_time || car->driver != eDriver_local_human)))) {
if (car->box_face_ref != gFace_num__car
&& (car->box_face_ref != gFace_num__car - 1 || car->box_face_start <= gFace_count)) {
car_info = (tCollision_info*)car;
GetFacesInBox(car_info);
}
if (car->dt != 0.f) {
MoveAndCollideCar(car, gDt);
}
if (car->disabled
|| (car->doing_nothing_flag
&& (car->driver < eDriver_net_human
|| (gPalette_fade_time && car->driver == eDriver_local_human)))) {
continue;
}
if (car->box_face_ref != gFace_num__car
&& (car->box_face_ref != gFace_num__car - 1 || car->box_face_start <= gFace_count)) {
GetFacesInBox(car_info);
}
if (car->dt != 0.f) {
MoveAndCollideCar(car, gDt);
}
}
for (i = 0; i < gNum_active_non_cars; i++) {
non_car = gActive_non_car_list[i];
if (!non_car->collision_info.doing_nothing_flag) {
non_car->collision_info.dt = -1.f;
if (non_car->collision_info.message.type == NETMSGID_NONCAR_INFO && non_car->collision_info.message.time >= gLast_mechanics_time && gLast_mechanics_time + harness_game_config.physics_step_time >= non_car->collision_info.message.time) {
non_car->collision_info.dt = (gLast_mechanics_time + harness_game_config.physics_step_time - non_car->collision_info.message.time) / 1000.0f;
GetNetPos((tCar_spec*)non_car);
}
if (non_car->collision_info.box_face_ref != gFace_num__car
&& (non_car->collision_info.box_face_ref != gFace_num__car - 1
|| non_car->collision_info.box_face_start <= gFace_count)) {
GetFacesInBox(&non_car->collision_info);
}
if (non_car->collision_info.dt != 0.0f) {
MoveAndCollideNonCar(non_car, gDt);
}
if (non_car->collision_info.doing_nothing_flag) {
continue;
}
car_info = non_car;
car_info->dt = -1.f;
if (car_info->message.type == NETMSGID_NONCAR_INFO && car_info->message.time >= gLast_mechanics_time && gLast_mechanics_time + time_step >= car_info->message.time) {
car_info->dt = (gLast_mechanics_time + time_step - car_info->message.time) / 1000.0f;
GetNetPos(car_info);
}
if (car_info->box_face_ref != gFace_num__car
&& (car_info->box_face_ref != gFace_num__car - 1
|| car_info->box_face_start <= gFace_count)) {
GetFacesInBox(car_info);
}
if (car_info->dt != 0.0f) {
MoveAndCollideNonCar(non_car, gDt);
}
}
do {
old_num_cars = gNum_cars_and_non_cars;
CrashCarsTogether(gDt);
} while (old_num_cars < gNum_cars_and_non_cars);
gMechanics_time_sync -= harness_game_config.physics_step_time;
gLast_mechanics_time += harness_game_config.physics_step_time;
gMechanics_time_sync -= time_step;
gLast_mechanics_time += time_step;
}
gMechanics_time_sync = 1;
SendCarData(gLast_mechanics_time);