A mod for Euro Truck Simulator 2 to support "haptic feedback devices" for "reasons"
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/**
* @brief Simple logger.
*
* Writes the output into file inside the current directory.
*/
// Windows stuff.
#ifdef _WIN32
# define WINVER 0x0500
# define _WIN32_WINNT 0x0500
# include <windows.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <stdarg.h>
#include <string.h>
// SDK
#include "scssdk_telemetry.h"
#include "eurotrucks2/scssdk_eut2.h"
#include "eurotrucks2/scssdk_telemetry_eut2.h"
#include "amtrucks/scssdk_ats.h"
#include "amtrucks/scssdk_telemetry_ats.h"
#define UNUSED(x)
/**
* @brief Logging support.
*/
FILE *log_file = NULL;
/**
* @brief Tracking of paused state of the game.
*/
bool output_paused = true;
/**
* @brief Should we print the data header next time
* we are printing the data?
*/
bool print_header = true;
/**
* @brief Last timestamp we received.
*/
scs_timestamp_t last_timestamp = static_cast<scs_timestamp_t>(-1);
/**
* @brief Combined telemetry data.
*/
struct telemetry_state_t
{
scs_timestamp_t timestamp;
scs_timestamp_t raw_rendering_timestamp;
scs_timestamp_t raw_simulation_timestamp;
scs_timestamp_t raw_paused_simulation_timestamp;
bool orientation_available;
float heading;
float pitch;
float roll;
float speed;
float rpm;
int gear;
} telemetry;
/**
* @brief Function writting message to the game internal log.
*/
scs_log_t game_log = NULL;
// Management of the log file.
bool init_log(void)
{
if (log_file) {
return true;
}
log_file = fopen("telemetry.log", "wt");
if (! log_file) {
return false;
}
fprintf(log_file, "Log opened\n");
return true;
}
void finish_log(void)
{
if (! log_file) {
return;
}
fprintf(log_file, "Log ended\n");
fclose(log_file);
log_file = NULL;
}
void log_print(const char *const text, ...)
{
if (! log_file) {
return;
}
va_list args;
va_start(args, text);
vfprintf(log_file, text, args);
va_end(args);
}
void log_line(const char *const text, ...)
{
if (! log_file) {
return;
}
va_list args;
va_start(args, text);
vfprintf(log_file, text, args);
fprintf(log_file, "\n");
va_end(args);
}
// Handling of individual events.
SCSAPI_VOID telemetry_frame_start(const scs_event_t UNUSED(event), const void *const event_info, const scs_context_t UNUSED(context))
{
const struct scs_telemetry_frame_start_t *const info = static_cast<const scs_telemetry_frame_start_t *>(event_info);
// The following processing of the timestamps is done so the output
// from this plugin has continuous time, it is not necessary otherwise.
// When we just initialized itself, assume that the time started
// just now.
if (last_timestamp == static_cast<scs_timestamp_t>(-1)) {
last_timestamp = info->paused_simulation_time;
}
// The timer might be sometimes restarted (e.g. after load) while
// we want to provide continuous time on our output.
if (info->flags & SCS_TELEMETRY_FRAME_START_FLAG_timer_restart) {
last_timestamp = 0;
}
// Advance the timestamp by delta since last frame.
telemetry.timestamp += (info->paused_simulation_time - last_timestamp);
last_timestamp = info->paused_simulation_time;
// The raw values.
telemetry.raw_rendering_timestamp = info->render_time;
telemetry.raw_simulation_timestamp = info->simulation_time;
telemetry.raw_paused_simulation_timestamp = info->paused_simulation_time;
}
SCSAPI_VOID telemetry_frame_end(const scs_event_t UNUSED(event), const void *const UNUSED(event_info), const scs_context_t UNUSED(context))
{
if (output_paused) {
return;
}
// The header.
if (print_header) {
print_header = false;
log_line("timestamp[us];raw rendering timestamp[us];raw simulation timestamp[us];raw paused simulation timestamp[us];heading[deg];pitch[deg];roll[deg];speed[m/s];rpm;gear");
}
// The data line.
log_print("%" SCS_PF_U64 ";%" SCS_PF_U64 ";%" SCS_PF_U64 ";%" SCS_PF_U64, telemetry.timestamp, telemetry.raw_rendering_timestamp, telemetry.raw_simulation_timestamp, telemetry.raw_paused_simulation_timestamp);
if (telemetry.orientation_available) {
log_print(";%f;%f;%f", telemetry.heading, telemetry.pitch, telemetry.roll);
}
else {
log_print(";---;---;---");
}
log_line(
";%f;%f;%d",
telemetry.speed,
telemetry.rpm,
telemetry.gear
);
}
SCSAPI_VOID telemetry_pause(const scs_event_t event, const void *const UNUSED(event_info), const scs_context_t UNUSED(context))
{
output_paused = (event == SCS_TELEMETRY_EVENT_paused);
if (output_paused) {
log_line("Telemetry paused");
}
else {
log_line("Telemetry unpaused");
}
print_header = true;
}
void telemetry_print_attributes(const scs_named_value_t *const attributes)
{
for (const scs_named_value_t *current = attributes; current->name; ++current) {
log_print(" %s", current->name);
if (current->index != SCS_U32_NIL) {
log_print("[%u]", static_cast<unsigned>(current->index));
}
log_print(" : ");
switch (current->value.type) {
case SCS_VALUE_TYPE_INVALID: {
log_line("none");
break;
}
case SCS_VALUE_TYPE_bool: {
log_line("bool = %s", current->value.value_bool.value ? "true" : "false");
break;
}
case SCS_VALUE_TYPE_s32: {
log_line("s32 = %d", static_cast<int>(current->value.value_s32.value));
break;
}
case SCS_VALUE_TYPE_u32: {
log_line("u32 = %u", static_cast<unsigned>(current->value.value_u32.value));
break;
}
case SCS_VALUE_TYPE_s64: {
log_line("s64 = %" SCS_PF_S64, current->value.value_s64.value);
break;
}
case SCS_VALUE_TYPE_u64: {
log_line("u64 = %" SCS_PF_U64, current->value.value_u64.value);
break;
}
case SCS_VALUE_TYPE_float: {
log_line("float = %f", current->value.value_float.value);
break;
}
case SCS_VALUE_TYPE_double: {
log_line("double = %f", current->value.value_double.value);
break;
}
case SCS_VALUE_TYPE_fvector: {
log_line(
"fvector = (%f,%f,%f)",
current->value.value_fvector.x,
current->value.value_fvector.y,
current->value.value_fvector.z
);
break;
}
case SCS_VALUE_TYPE_dvector: {
log_line(
"dvector = (%f,%f,%f)",
current->value.value_dvector.x,
current->value.value_dvector.y,
current->value.value_dvector.z
);
break;
}
case SCS_VALUE_TYPE_euler: {
log_line(
"euler = h:%f p:%f r:%f",
current->value.value_euler.heading * 360.0f,
current->value.value_euler.pitch * 360.0f,
current->value.value_euler.roll * 360.0f
);
break;
}
case SCS_VALUE_TYPE_fplacement: {
log_line(
"fplacement = (%f,%f,%f) h:%f p:%f r:%f",
current->value.value_fplacement.position.x,
current->value.value_fplacement.position.y,
current->value.value_fplacement.position.z,
current->value.value_fplacement.orientation.heading * 360.0f,
current->value.value_fplacement.orientation.pitch * 360.0f,
current->value.value_fplacement.orientation.roll * 360.0f
);
break;
}
case SCS_VALUE_TYPE_dplacement: {
log_line(
"dplacement = (%f,%f,%f) h:%f p:%f r:%f",
current->value.value_dplacement.position.x,
current->value.value_dplacement.position.y,
current->value.value_dplacement.position.z,
current->value.value_dplacement.orientation.heading * 360.0f,
current->value.value_dplacement.orientation.pitch * 360.0f,
current->value.value_dplacement.orientation.roll * 360.0f
);
break;
}
case SCS_VALUE_TYPE_string: {
log_line("string = %s", current->value.value_string.value);
break;
}
default: {
log_line("unknown");
break;
}
}
}
}
SCSAPI_VOID telemetry_configuration(const scs_event_t event, const void *const event_info, const scs_context_t UNUSED(context))
{
// Here we just print the configuration info.
const struct scs_telemetry_configuration_t *const info = static_cast<const scs_telemetry_configuration_t *>(event_info);
log_line("Configuration: %s", info->id);
telemetry_print_attributes(info->attributes);
print_header = true;
}
SCSAPI_VOID telemetry_gameplay_event(const scs_event_t event, const void *const event_info, const scs_context_t UNUSED(context))
{
// Here we just print the event info.
const struct scs_telemetry_gameplay_event_t *const info = static_cast<const scs_telemetry_gameplay_event_t *>(event_info);
log_line("Gameplay event: %s", info->id);
telemetry_print_attributes(info->attributes);
print_header = true;
}
// Handling of individual channels.
SCSAPI_VOID telemetry_store_orientation(const scs_string_t name, const scs_u32_t index, const scs_value_t *const value, const scs_context_t context)
{
assert(context);
telemetry_state_t *const state = static_cast<telemetry_state_t *>(context);
// This callback was registered with the SCS_TELEMETRY_CHANNEL_FLAG_no_value flag
// so it is called even when the value is not available.
if (! value) {
state->orientation_available = false;
return;
}
assert(value);
assert(value->type == SCS_VALUE_TYPE_euler);
state->orientation_available = true;
state->heading = value->value_euler.heading * 360.0f;
state->pitch = value->value_euler.pitch * 360.0f;
state->roll = value->value_euler.roll * 360.0f;
}
SCSAPI_VOID telemetry_store_float(const scs_string_t name, const scs_u32_t index, const scs_value_t *const value, const scs_context_t context)
{
// The SCS_TELEMETRY_CHANNEL_FLAG_no_value flag was not provided during registration
// so this callback is only called when a valid value is available.
assert(value);
assert(value->type == SCS_VALUE_TYPE_float);
assert(context);
*static_cast<float *>(context) = value->value_float.value;
}
SCSAPI_VOID telemetry_store_s32(const scs_string_t name, const scs_u32_t index, const scs_value_t *const value, const scs_context_t context)
{
// The SCS_TELEMETRY_CHANNEL_FLAG_no_value flag was not provided during registration
// so this callback is only called when a valid value is available.
assert(value);
assert(value->type == SCS_VALUE_TYPE_s32);
assert(context);
*static_cast<int *>(context) = value->value_s32.value;
}
/**
* @brief Telemetry API initialization function.
*
* See scssdk_telemetry.h
*/
SCSAPI_RESULT scs_telemetry_init(const scs_u32_t version, const scs_telemetry_init_params_t *const params)
{
// We currently support only one version.
if (version != SCS_TELEMETRY_VERSION_1_01) {
return SCS_RESULT_unsupported;
}
const scs_telemetry_init_params_v101_t *const version_params = static_cast<const scs_telemetry_init_params_v101_t *>(params);
if (! init_log()) {
version_params->common.log(SCS_LOG_TYPE_error, "Unable to initialize the log file");
return SCS_RESULT_generic_error;
}
// Check application version. Note that this example uses fairly basic channels which are likely to be supported
// by any future SCS trucking game however more advanced application might want to at least warn the user if there
// is game or version they do not support.
log_line("Game '%s' %u.%u", version_params->common.game_id, SCS_GET_MAJOR_VERSION(version_params->common.game_version), SCS_GET_MINOR_VERSION(version_params->common.game_version));
if (strcmp(version_params->common.game_id, SCS_GAME_ID_EUT2) == 0) {
// Below the minimum version there might be some missing features (only minor change) or
// incompatible values (major change).
const scs_u32_t MINIMAL_VERSION = SCS_TELEMETRY_EUT2_GAME_VERSION_1_00;
if (version_params->common.game_version < MINIMAL_VERSION) {
log_line("WARNING: Too old version of the game, some features might behave incorrectly");
}
// Future versions are fine as long the major version is not changed.
const scs_u32_t IMPLEMENTED_VERSION = SCS_TELEMETRY_EUT2_GAME_VERSION_CURRENT;
if (SCS_GET_MAJOR_VERSION(version_params->common.game_version) > SCS_GET_MAJOR_VERSION(IMPLEMENTED_VERSION)) {
log_line("WARNING: Too new major version of the game, some features might behave incorrectly");
}
}
else if (strcmp(version_params->common.game_id, SCS_GAME_ID_ATS) == 0) {
// Below the minimum version there might be some missing features (only minor change) or
// incompatible values (major change).
const scs_u32_t MINIMAL_VERSION = SCS_TELEMETRY_ATS_GAME_VERSION_1_00;
if (version_params->common.game_version < MINIMAL_VERSION) {
log_line("WARNING: Too old version of the game, some features might behave incorrectly");
}
// Future versions are fine as long the major version is not changed.
const scs_u32_t IMPLEMENTED_VERSION = SCS_TELEMETRY_ATS_GAME_VERSION_CURRENT;
if (SCS_GET_MAJOR_VERSION(version_params->common.game_version) > SCS_GET_MAJOR_VERSION(IMPLEMENTED_VERSION)) {
log_line("WARNING: Too new major version of the game, some features might behave incorrectly");
}
}
else {
log_line("WARNING: Unsupported game, some features or values might behave incorrectly");
}
// Register for events. Note that failure to register those basic events
// likely indicates invalid usage of the api or some critical problem. As the
// example requires all of them, we can not continue if the registration fails.
const bool events_registered =
(version_params->register_for_event(SCS_TELEMETRY_EVENT_frame_start, telemetry_frame_start, NULL) == SCS_RESULT_ok) &&
(version_params->register_for_event(SCS_TELEMETRY_EVENT_frame_end, telemetry_frame_end, NULL) == SCS_RESULT_ok) &&
(version_params->register_for_event(SCS_TELEMETRY_EVENT_paused, telemetry_pause, NULL) == SCS_RESULT_ok) &&
(version_params->register_for_event(SCS_TELEMETRY_EVENT_started, telemetry_pause, NULL) == SCS_RESULT_ok)
;
if (! events_registered) {
// Registrations created by unsuccessfull initialization are
// cleared automatically so we can simply exit.
version_params->common.log(SCS_LOG_TYPE_error, "Unable to register event callbacks");
return SCS_RESULT_generic_error;
}
// Register for the configuration info. As this example only prints the retrieved
// data, it can operate even if that fails.
version_params->register_for_event(SCS_TELEMETRY_EVENT_configuration, telemetry_configuration, NULL);
// Register for gameplay events.
version_params->register_for_event(SCS_TELEMETRY_EVENT_gameplay, telemetry_gameplay_event, NULL);
// Register for channels. The channel might be missing if the game does not support
// it (SCS_RESULT_not_found) or if does not support the requested type
// (SCS_RESULT_unsupported_type). For purpose of this example we ignore the failues
// so the unsupported channels will remain at theirs default value.
version_params->register_for_channel(SCS_TELEMETRY_TRUCK_CHANNEL_world_placement, SCS_U32_NIL, SCS_VALUE_TYPE_euler, SCS_TELEMETRY_CHANNEL_FLAG_no_value, telemetry_store_orientation, &telemetry);
version_params->register_for_channel(SCS_TELEMETRY_TRUCK_CHANNEL_speed, SCS_U32_NIL, SCS_VALUE_TYPE_float, SCS_TELEMETRY_CHANNEL_FLAG_none, telemetry_store_float, &telemetry.speed);
version_params->register_for_channel(SCS_TELEMETRY_TRUCK_CHANNEL_engine_rpm, SCS_U32_NIL, SCS_VALUE_TYPE_float, SCS_TELEMETRY_CHANNEL_FLAG_none, telemetry_store_float, &telemetry.rpm);
version_params->register_for_channel(SCS_TELEMETRY_TRUCK_CHANNEL_engine_gear, SCS_U32_NIL, SCS_VALUE_TYPE_s32, SCS_TELEMETRY_CHANNEL_FLAG_none, telemetry_store_s32, &telemetry.gear);
// Remember the function we will use for logging.
game_log = version_params->common.log;
game_log(SCS_LOG_TYPE_message, "Initializing telemetry log example");
// Set the structure with defaults.
memset(&telemetry, 0, sizeof(telemetry));
print_header = true;
last_timestamp = static_cast<scs_timestamp_t>(-1);
// Initially the game is paused.
output_paused = true;
return SCS_RESULT_ok;
}
/**
* @brief Telemetry API deinitialization function.
*
* See scssdk_telemetry.h
*/
SCSAPI_VOID scs_telemetry_shutdown(void)
{
// Any cleanup needed. The registrations will be removed automatically
// so there is no need to do that manually.
game_log = NULL;
finish_log();
}
// Cleanup
#ifdef _WIN32
BOOL APIENTRY DllMain(
HMODULE module,
DWORD reason_for_call,
LPVOID reseved
)
{
if (reason_for_call == DLL_PROCESS_DETACH) {
finish_log();
}
return TRUE;
}
#endif
#ifdef __linux__
void __attribute__ ((destructor)) unload(void)
{
finish_log();
}
#endif