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dfhack/plugins/spectate.cpp

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C++
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//
// Created by josh on 7/28/21.
//
#include "Core.h"
#include <modules/Gui.h>
#include <Console.h>
#include <Export.h>
#include <PluginManager.h>
#include <modules/World.h>
#include <modules/EventManager.h>
#include <modules/Job.h>
#include <modules/Units.h>
#include <df/job.h>
#include <df/unit.h>
#include <df/historical_figure.h>
#include <df/global_objects.h>
#include <df/world.h>
#include <df/viewscreen.h>
#include <map>
#include <set>
#include <random>
DFHACK_PLUGIN("spectate");
DFHACK_PLUGIN_IS_ENABLED(enabled);
REQUIRE_GLOBAL(world);
REQUIRE_GLOBAL(ui);
REQUIRE_GLOBAL(pause_state);
REQUIRE_GLOBAL(d_init);
using namespace DFHack;
using namespace df::enums;
void onTick(color_ostream& out, void* tick);
void onJobStart(color_ostream &out, void* job);
void onJobCompletion(color_ostream &out, void* job);
uint64_t tick_threshold = 50;
bool focus_jobs_enabled = false;
bool disengage_enabled = false;
bool unpause_enabled = false;
Pausing::AnnouncementLock* pause_lock = nullptr;
bool lock_collision = false;
bool following_dwarf = false;
df::unit* our_dorf = nullptr;
df::job* job_watched = nullptr;
int32_t timestamp = -1;
std::set<int32_t> job_tracker;
std::map<uint16_t,uint16_t> freq;
std::default_random_engine RNG;
#define base 0.99
static const std::string CONFIG_KEY = std::string(plugin_name) + "/config";
enum ConfigData {
UNPAUSE,
DISENGAGE,
JOB_FOCUS,
TICK_THRESHOLD
};
static PersistentDataItem config;
inline void saveConfig() {
if (config.isValid()) {
config.ival(UNPAUSE) = unpause_enabled;
config.ival(DISENGAGE) = disengage_enabled;
config.ival(JOB_FOCUS) = focus_jobs_enabled;
config.ival(TICK_THRESHOLD) = tick_threshold;
}
}
command_result spectate (color_ostream &out, std::vector <std::string> & parameters);
DFhackCExport command_result plugin_init (color_ostream &out, std::vector <PluginCommand> &commands) {
commands.push_back(PluginCommand("spectate",
"Automated spectator mode.",
spectate,
false));
pause_lock = World::AcquireAnnouncementPauseLock("spectate");
return CR_OK;
}
DFhackCExport command_result plugin_shutdown (color_ostream &out) {
World::ReleasePauseLock(pause_lock);
return CR_OK;
}
DFhackCExport command_result plugin_load_data (color_ostream &out) {
config = World::GetPersistentData(CONFIG_KEY);
if (!config.isValid()) {
config = World::AddPersistentData(CONFIG_KEY);
saveConfig();
} else {
unpause_enabled = config.ival(UNPAUSE);
disengage_enabled = config.ival(DISENGAGE);
focus_jobs_enabled = config.ival(JOB_FOCUS);
tick_threshold = config.ival(TICK_THRESHOLD);
}
return DFHack::CR_OK;
}
DFhackCExport command_result plugin_enable(color_ostream &out, bool enable) {
namespace EM = EventManager;
if (enable && !enabled) {
out.print("Spectate mode enabled!\n");
using namespace EM::EventType;
EM::EventHandler ticking(onTick, 15);
EM::EventHandler start(onJobStart, 0);
EM::EventHandler complete(onJobCompletion, 0);
EM::registerListener(EventType::TICK, ticking, plugin_self);
EM::registerListener(EventType::JOB_STARTED, start, plugin_self);
EM::registerListener(EventType::JOB_COMPLETED, complete, plugin_self);
} else if (!enable && enabled) {
// warp 8, engage!
out.print("Spectate mode disabled!\n");
EM::unregisterAll(plugin_self);
job_tracker.clear();
freq.clear();
}
enabled = enable;
return DFHack::CR_OK;
}
DFhackCExport command_result plugin_onstatechange(color_ostream &out, state_change_event event) {
if (enabled && world) {
switch (event) {
case SC_MAP_UNLOADED:
case SC_BEGIN_UNLOAD:
case SC_WORLD_UNLOADED:
our_dorf = nullptr;
job_watched = nullptr;
following_dwarf = false;
default:
break;
}
}
return CR_OK;
}
DFhackCExport command_result plugin_onupdate(color_ostream &out) {
if (lock_collision) {
if (unpause_enabled) {
// player asked for auto-unpause enabled
World::SaveAnnouncementSettings();
if (World::DisableAnnouncementPausing()){
// now that we've got what we want, we can lock it down
lock_collision = false;
pause_lock->lock();
}
} else {
if (World::RestoreAnnouncementSettings()) {
lock_collision = false;
}
}
}
while (unpause_enabled && !world->status.popups.empty()) {
// dismiss announcement popup(s)
Gui::getCurViewscreen(true)->feed_key(interface_key::CLOSE_MEGA_ANNOUNCEMENT);
}
if (disengage_enabled) {
fprintf(stderr,"A: pre-segfault-potential\n");
fflush(stderr);
if (our_dorf && our_dorf->id != df::global::ui->follow_unit){
plugin_enable(out, false);
}
fprintf(stderr,"A: post-segfault-potential\n");
fflush(stderr);
}
return DFHack::CR_OK;
}
void enable_auto_unpause(color_ostream &out, bool state){
if(unpause_enabled != state && lock_collision) {
// when enabled, lock collision means announcements haven't been disabled
// when disabled, lock collision means announcement are still disabled
// the only state left to consider here is what the lock should be set to
lock_collision = false;
unpause_enabled = state;
if (unpause_enabled) {
pause_lock->lock();
} else {
// this one should be redundant, the lock should already be unlocked right now
pause_lock->unlock();
}
return;
}
unpause_enabled = state;
// update the announcement settings if we can
if (unpause_enabled) {
if (World::SaveAnnouncementSettings()) {
World::DisableAnnouncementPausing();
pause_lock->lock();
} else {
lock_collision = true;
}
} else {
pause_lock->unlock();
if (!World::RestoreAnnouncementSettings()) {
// this in theory shouldn't happen, if others use the lock like we do in spectate
lock_collision = true;
}
}
if (lock_collision){
out.printerr("auto-unpause: must wait for another Pausing::AnnouncementLock to be lifted. This setting will complete when the lock lifts.\n");
}
}
command_result spectate (color_ostream &out, std::vector <std::string> & parameters) {
if(!parameters.empty()) {
if (parameters.size() % 2 != 0) {
return DFHack::CR_WRONG_USAGE;
}
for (size_t i = 0; i+1 < parameters.size(); i += 2) {
if (parameters[i] == "auto-unpause") {
if (parameters[i+1] == "0") {
enable_auto_unpause(out, false);
} else if (parameters[i+1] == "1") {
enable_auto_unpause(out, true);
} else {
return DFHack::CR_WRONG_USAGE;
}
} else if (parameters[i] == "auto-disengage") {
if (parameters[i+1] == "0") {
disengage_enabled = false;
} else if (parameters[i+1] == "1") {
disengage_enabled = true;
} else {
return DFHack::CR_WRONG_USAGE;
}
} else if (parameters[i] == "focus-jobs") {
if (parameters[i+1] == "0") {
focus_jobs_enabled = false;
} else if (parameters[i+1] == "1") {
focus_jobs_enabled = true;
} else {
return DFHack::CR_WRONG_USAGE;
}
} else if (parameters[i] == "tick-threshold") {
try {
tick_threshold = std::stol(parameters[i + 1]);
} catch (const std::exception &e) {
out.printerr("%s\n", e.what());
}
} else {
return DFHack::CR_WRONG_USAGE;
}
}
} else {
out.print("Spectate is %s\n", enabled ? "ENABLED." : "DISABLED.");
out.print("tick-threshold: %zu\n", tick_threshold);
out.print("focus-jobs: %s\n", focus_jobs_enabled ? "on." : "off.");
out.print("auto-unpause: %s\n", unpause_enabled ? "on." : "off.");
out.print("auto-disengage: %s\n", disengage_enabled ? "on." : "off.");
}
saveConfig();
return DFHack::CR_OK;
}
// every tick check whether to decide to follow a dwarf
void onTick(color_ostream& out, void* ptr) {
if (!df::global::ui) return;
int32_t tick = df::global::world->frame_counter;
if(our_dorf){
if(!Units::isAlive(our_dorf)){
following_dwarf = false;
df::global::ui->follow_unit = -1;
}
}
fprintf(stderr,"B: pre-segfault-potential\n");
fflush(stderr);
if (!following_dwarf || (focus_jobs_enabled && !job_watched) || (tick - timestamp) > (int32_t)tick_threshold) {
std::vector<df::unit*> dwarves;
for (auto unit: df::global::world->units.active) {
if (!Units::isCitizen(unit)) {
continue;
}
dwarves.push_back(unit);
}
std::uniform_int_distribution<uint64_t> follow_any(0, dwarves.size() - 1);
if (df::global::ui) {
// if you're looking at a warning about a local address escaping, it means the unit* from dwarves (which aren't local)
our_dorf = dwarves[follow_any(RNG)];
df::global::ui->follow_unit = our_dorf->id;
job_watched = our_dorf->job.current_job;
following_dwarf = true;
if (!job_watched) {
timestamp = tick;
}
}
}
fprintf(stderr,"B: post-segfault-potential\n");
fflush(stderr);
}
// every new worked job needs to be considered
void onJobStart(color_ostream& out, void* job_ptr) {
// todo: detect mood jobs
int32_t tick = df::global::world->frame_counter;
auto job = (df::job*) job_ptr;
// don't forget about it
int zcount = ++freq[job->pos.z];
job_tracker.emplace(job->id);
// if we're not doing anything~ then let's pick something
if ((focus_jobs_enabled && !job_watched) || (tick - timestamp) > (int32_t)tick_threshold) {
following_dwarf = true;
// todo: allow the user to configure b, and also revise the math
const double b = base;
double p = b * ((double) zcount / job_tracker.size());
std::bernoulli_distribution follow_job(p);
if (!job->flags.bits.special && follow_job(RNG)) {
job_watched = job;
df::unit* unit = Job::getWorker(job);
if (df::global::ui && unit) {
our_dorf = unit;
df::global::ui->follow_unit = unit->id;
}
} else {
timestamp = tick;
std::vector<df::unit*> nonworkers;
for (auto unit: df::global::world->units.active) {
if (!Units::isCitizen(unit) || unit->job.current_job) {
continue;
}
nonworkers.push_back(unit);
}
std::uniform_int_distribution<> follow_drunk(0, nonworkers.size() - 1);
if (df::global::ui) {
df::global::ui->follow_unit = nonworkers[follow_drunk(RNG)]->id;
}
}
}
}
// every job completed can be forgotten about
void onJobCompletion(color_ostream &out, void* job_ptr) {
auto job = (df::job*)job_ptr;
// forget about it
freq[job->pos.z]--;
freq[job->pos.z] = freq[job->pos.z] < 0 ? 0 : freq[job->pos.z];
// the job doesn't exist, so we definitely need to get rid of that
job_tracker.erase(job->id);
// the event manager clones jobs and returns those clones for completed jobs. So the pointers won't match without a refactor of EM passing clones to both events
if (job_watched && job_watched->id == job->id) {
job_watched = nullptr;
}
}
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