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dfhack/plugins/steam-engine.cpp

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#include "Core.h"
#include <Console.h>
#include <Export.h>
#include <PluginManager.h>
#include <modules/Gui.h>
#include <modules/Screen.h>
#include <modules/Maps.h>
#include <TileTypes.h>
#include <vector>
#include <cstdio>
#include <stack>
#include <string>
#include <cmath>
#include <string.h>
#include <VTableInterpose.h>
#include "df/graphic.h"
#include "df/building_workshopst.h"
#include "df/building_def_workshopst.h"
#include "df/item_liquid_miscst.h"
#include "df/power_info.h"
#include "df/workshop_type.h"
#include "df/builtin_mats.h"
#include "df/world.h"
#include "df/buildings_other_id.h"
#include "df/machine.h"
#include "df/job.h"
#include "df/building_drawbuffer.h"
#include "df/ui.h"
#include "df/viewscreen_dwarfmodest.h"
#include "df/ui_build_selector.h"
#include "df/flow_info.h"
#include "df/report.h"
#include "MiscUtils.h"
/*
* This plugin implements a steam engine workshop. It activates
* if there are any workshops in the raws with STEAM_ENGINE in
* their token, and provides the necessary behavior.
*
* Construction:
*
* The workshop needs water as its input, which it takes via a
* passable floor tile below it, like usual magma workshops do.
* The magma version also needs magma.
*
* ISSUE: Since this building is a machine, and machine collapse
* code cannot be modified, it would collapse over true open space.
* As a loophole, down stair provides support to machines, while
* being passable, so use them.
*
* After constructing the building itself, machines can be connected
* to the edge tiles that look like gear boxes. Their exact position
* is extracted from the workshop raws.
*
* ISSUE: Like with collapse above, part of the code involved in
* machine connection cannot be modified. As a result, the workshop
* can only immediately connect to machine components built AFTER it.
* This also means that engines cannot be chained without intermediate
* short axles that can be built later.
*
* Operation:
*
* In order to operate the engine, queue the Stoke Boiler job.
* A furnace operator will come, possibly bringing a bar of fuel,
* and perform it. As a result, a "boiling water" item will appear
* in the 't' view of the workshop.
*
* Note: The completion of the job will actually consume one unit
* of appropriate liquids from below the workshop.
*
* Every such item gives 100 power, up to a limit of 300 for coal,
* and 500 for a magma engine. The building can host twice that
* amount of items to provide longer autonomous running. When the
* boiler gets filled to capacity, all queued jobs are suspended;
* once it drops back to 3+1 or 5+1 items, they are re-enabled.
*
* While the engine is providing power, steam is being consumed.
* The consumption speed includes a fixed 10% waste rate, and
* the remaining 90% are applied proportionally to the actual
* load in the machine. With the engine at nominal 300 power with
* 150 load in the system, it will consume steam for actual
* 300*(10% + 90%*150/300) = 165 power.
*
* Masterpiece mechanism and chain will decrease the mechanical
* power drawn by the engine itself from 10 to 5. Masterpiece
* barrel decreases waste rate by 4%. Masterpiece piston and pipe
* decrease it by further 4%, and also decrease the whole steam
* use rate by 10%.
*
* Explosions:
*
* The engine must be constructed using barrel, pipe and piston
* from fire-safe, or in the magma version magma-safe metals.
*
* During operation weak parts get gradually worn out, and
* eventually the engine explodes. It should also explode if
* toppled during operation by a building destroyer, or a
* tantruming dwarf.
*
* Save files:
*
* It should be safe to load and view fortresses using engines
* from a DF version without DFHack installed, except that in such
* case the engines won't work. However actually making modifications
* to them, or machines they connect to (including by pulling levers),
* can easily result in inconsistent state once this plugin is
* available again. The effects may be as weird as negative power
* being generated.
*/
using std::vector;
using std::string;
using std::stack;
using namespace DFHack;
using namespace df::enums;
using df::global::gps;
using df::global::world;
using df::global::ui;
using df::global::ui_build_selector;
DFHACK_PLUGIN("steam-engine");
/*
* List of known steam engine workshop raws.
*/
struct steam_engine_workshop {
int id;
df::building_def_workshopst *def;
// Cached properties
bool is_magma;
int max_power, max_capacity;
int wear_temp;
// Special tiles (relative position)
std::vector<df::coord2d> gear_tiles;
df::coord2d hearth_tile;
df::coord2d water_tile;
df::coord2d magma_tile;
};
std::vector<steam_engine_workshop> engines;
steam_engine_workshop *find_steam_engine(int id)
{
for (size_t i = 0; i < engines.size(); i++)
if (engines[i].id == id)
return &engines[i];
return NULL;
}
/*
* Misc utilities.
*/
static const int hearth_colors[6][2] = {
{ COLOR_BLACK, 1 },
{ COLOR_BROWN, 0 },
{ COLOR_RED, 0 },
{ COLOR_RED, 1 },
{ COLOR_BROWN, 1 },
{ COLOR_GREY, 1 }
};
void enable_updates_at(df::coord pos, bool flow, bool temp)
{
static const int delta[4][2] = { { -1, -1 }, { 1, -1 }, { -1, 1 }, { 1, 1 } };
for (int i = 0; i < 4; i++)
{
auto blk = Maps::getTileBlock(pos.x+delta[i][0], pos.y+delta[i][1], pos.z);
Maps::enableBlockUpdates(blk, flow, temp);
}
}
void decrement_flow(df::coord pos, int amount)
{
auto pldes = Maps::getTileDesignation(pos);
if (!pldes) return;
int nsize = std::max(0, int(pldes->bits.flow_size - amount));
pldes->bits.flow_size = nsize;
pldes->bits.flow_forbid = (nsize > 3 || pldes->bits.liquid_type == tile_liquid::Magma);
enable_updates_at(pos, true, false);
}
void make_explosion(df::coord center, int power)
{
static const int bias[9] = {
60, 30, 60,
30, 0, 30,
60, 30, 60
};
int mat_type = builtin_mats::WATER, mat_index = -1;
int i = 0;
for (int dx = -1; dx <= 1; dx++)
{
for (int dy = -1; dy <= 1; dy++)
{
int size = power - bias[i++];
auto pos = center + df::coord(dx,dy,0);
if (size > 0)
Maps::spawnFlow(pos, flow_type::MaterialDust, mat_type, mat_index, size);
}
}
Gui::showAutoAnnouncement(
announcement_type::CAVE_COLLAPSE, center,
"A boiler has exploded!", COLOR_RED, true
);
}
static const int WEAR_TICKS = 806400;
bool add_wear_nodestroy(df::item_actual *item, int rate)
{
if (item->incWearTimer(rate))
{
while (item->wear_timer >= WEAR_TICKS)
{
item->wear_timer -= WEAR_TICKS;
item->wear++;
}
}
return item->wear > 3;
}
/*
* Hook for the liquid item. Implements a special 'boiling'
* matter state with a modified description and temperature
* locked at boiling-1.
*/
struct liquid_hook : df::item_liquid_miscst {
typedef df::item_liquid_miscst interpose_base;
static const uint32_t BOILING_FLAG = 0x80000000U;
DEFINE_VMETHOD_INTERPOSE(void, getItemDescription, (std::string *buf, int8_t mode))
{
if (mat_state.whole & BOILING_FLAG)
buf->append("boiling ");
INTERPOSE_NEXT(getItemDescription)(buf, mode);
}
DEFINE_VMETHOD_INTERPOSE(bool, adjustTemperature, (uint16_t temp, int32_t unk))
{
if (mat_state.whole & BOILING_FLAG)
temp = std::max(int(temp), getBoilingPoint()-1);
return INTERPOSE_NEXT(adjustTemperature)(temp, unk);
}
DEFINE_VMETHOD_INTERPOSE(bool, checkTemperatureDamage, ())
{
if (mat_state.whole & BOILING_FLAG)
temperature.whole = std::max(int(temperature.whole), getBoilingPoint()-1);
return INTERPOSE_NEXT(checkTemperatureDamage)();
}
};
IMPLEMENT_VMETHOD_INTERPOSE(liquid_hook, getItemDescription);
IMPLEMENT_VMETHOD_INTERPOSE(liquid_hook, adjustTemperature);
IMPLEMENT_VMETHOD_INTERPOSE(liquid_hook, checkTemperatureDamage);
/*
* Hook for the workshop itself. Implements core logic.
*/
struct workshop_hook : df::building_workshopst {
typedef df::building_workshopst interpose_base;
// Engine detection
steam_engine_workshop *get_steam_engine()
{
if (type == workshop_type::Custom)
return find_steam_engine(custom_type);
return NULL;
}
inline bool is_fully_built()
{
return getBuildStage() >= getMaxBuildStage();
}
// Use high bits of flags to store current steam amount.
// This is necessary for consistency if items disappear unexpectedly.
int get_steam_amount()
{
return (flags.whole >> 28) & 15;
}
void set_steam_amount(int count)
{
flags.whole = (flags.whole & 0x0FFFFFFFU) | uint32_t((count & 15) << 28);
}
// Find liquids to consume below the engine.
bool find_liquids(df::coord *pwater, df::coord *pmagma, bool is_magma, int min_level)
{
if (!is_magma)
pmagma = NULL;
for (int x = x1; x <= x2; x++)
{
for (int y = y1; y <= y2; y++)
{
auto ptile = Maps::getTileType(x,y,z);
if (!ptile || !FlowPassableDown(*ptile))
continue;
auto pltile = Maps::getTileType(x,y,z-1);
if (!pltile || !FlowPassable(*pltile))
continue;
auto pldes = Maps::getTileDesignation(x,y,z-1);
if (!pldes || pldes->bits.flow_size < min_level)
continue;
if (pldes->bits.liquid_type == tile_liquid::Magma)
{
if (pmagma)
*pmagma = df::coord(x,y,z-1);
if (pwater->isValid())
return true;
}
else
{
*pwater = df::coord(x,y,z-1);
if (!pmagma || pmagma->isValid())
return true;
}
}
}
return false;
}
// Absorbs a water item produced by stoke reaction into the engine.
bool absorb_unit(steam_engine_workshop *engine, df::item_liquid_miscst *liquid)
{
// Consume liquid inputs
df::coord water, magma;
if (!find_liquids(&water, &magma, engine->is_magma, 1))
{
// Destroy the item with enormous wear amount.
liquid->addWear(WEAR_TICKS*5, true, false);
return false;
}
decrement_flow(water, 1);
if (engine->is_magma)
decrement_flow(magma, 1);
// Update flags
liquid->flags.bits.in_building = true;
liquid->mat_state.whole |= liquid_hook::BOILING_FLAG;
liquid->temperature.whole = liquid->getBoilingPoint()-1;
liquid->temperature.fraction = 0;
// This affects where the steam appears to come from
if (engine->hearth_tile.isValid())
liquid->pos = df::coord(x1+engine->hearth_tile.x, y1+engine->hearth_tile.y, z);
// Enable block temperature updates
enable_updates_at(liquid->pos, false, true);
return true;
}
bool boil_unit(df::item_liquid_miscst *liquid)
{
liquid->wear = 4;
liquid->flags.bits.in_building = false;
liquid->temperature.whole = liquid->getBoilingPoint() + 10;
return liquid->checkMeltBoil();
}
void suspend_jobs(bool suspend)
{
for (size_t i = 0; i < jobs.size(); i++)
if (jobs[i]->job_type == job_type::CustomReaction)
jobs[i]->flags.bits.suspend = suspend;
}
// Scan contained items for boiled steam to absorb.
df::item_liquid_miscst *collect_steam(steam_engine_workshop *engine, int *count)
{
df::item_liquid_miscst *first = NULL;
*count = 0;
for (int i = contained_items.size()-1; i >= 0; i--)
{
auto item = contained_items[i];
if (item->use_mode != 0)
continue;
auto liquid = strict_virtual_cast<df::item_liquid_miscst>(item->item);
if (!liquid)
continue;
if (!liquid->flags.bits.in_building)
{
if (liquid->mat_type != builtin_mats::WATER ||
liquid->age > 1 ||
liquid->wear != 0)
continue;
// This may destroy the item
if (!absorb_unit(engine, liquid))
continue;
}
if (*count < engine->max_capacity)
{
first = liquid;
++*count;
}
else
{
// Overpressure valve
boil_unit(liquid);
suspend_jobs(true);
}
}
return first;
}
void random_boil()
{
int cnt = 0;
for (int i = contained_items.size()-1; i >= 0; i--)
{
auto item = contained_items[i];
if (item->use_mode != 0 || !item->item->flags.bits.in_building)
continue;
auto liquid = strict_virtual_cast<df::item_liquid_miscst>(item->item);
if (!liquid)
continue;
if (cnt == 0 || rand() < RAND_MAX/2)
{
cnt++;
boil_unit(liquid);
}
}
}
int classify_component(df::building_actual::T_contained_items *item)
{
if (item->use_mode != 2 || item->item->isBuildMat())
return -1;
switch (item->item->getType())
{
case item_type::TRAPPARTS:
case item_type::CHAIN:
return 0;
case item_type::BARREL:
return 2;
default:
return 1;
}
}
bool check_component_wear(steam_engine_workshop *engine, int count, int power)
{
int coeffs[3] = { 0, power, count };
for (int i = contained_items.size()-1; i >= 0; i--)
{
int type = classify_component(contained_items[i]);
if (type < 0)
continue;
df::item *item = contained_items[i]->item;
int melt_temp = item->getMeltingPoint();
if (coeffs[type] == 0 || melt_temp >= engine->wear_temp)
continue;
// let 500 degree delta at 4 pressure work 1 season
float ticks = coeffs[type]*(engine->wear_temp - melt_temp)*3.0f/500.0f/4.0f;
if (item->addWear(int(8*(1 + ticks)), true, true))
return true;
}
return false;
}
float get_component_quality(int use_type)
{
float sum = 0, cnt = 0;
for (size_t i = 0; i < contained_items.size(); i++)
{
int type = classify_component(contained_items[i]);
if (type != use_type)
continue;
sum += contained_items[i]->item->getQuality();
cnt += 1;
}
return (cnt > 0 ? sum/cnt : 0);
}
int get_steam_use_rate(steam_engine_workshop *engine, int dimension, int power_level)
{
// total ticks to wear off completely
float ticks = WEAR_TICKS * 4.0f;
// dimension == days it lasts * 100
ticks /= 1200.0f * dimension / 100.0f;
// true power use
float power_rate = 1.0f;
// check the actual load
if (auto mptr = df::machine::find(machine.machine_id))
{
if (mptr->cur_power >= mptr->min_power)
power_rate = float(mptr->min_power) / mptr->cur_power;
else
power_rate = 0.0f;
}
// waste rate: 1-10% depending on piston assembly quality
float piston_qual = get_component_quality(1);
float waste = 0.1f - 0.016f * 0.5f * (piston_qual + get_component_quality(2));
float efficiency_coeff = 1.0f - 0.02f * piston_qual;
// apply rate and waste factor
ticks *= (waste + 0.9f*power_rate)*power_level*efficiency_coeff;
// end result
return std::max(1, int(ticks));
}
void update_under_construction(steam_engine_workshop *engine)
{
if (machine.machine_id != -1)
return;
int cur_count = 0;
if (auto first = collect_steam(engine, &cur_count))
{
if (add_wear_nodestroy(first, WEAR_TICKS*4/10))
{
boil_unit(first);
cur_count--;
}
}
set_steam_amount(cur_count);
}
void update_working(steam_engine_workshop *engine)
{
int old_count = get_steam_amount();
int old_power = std::min(engine->max_power, old_count);
int cur_count = 0;
if (auto first = collect_steam(engine, &cur_count))
{
int rate = get_steam_use_rate(engine, first->dimension, old_power);
if (add_wear_nodestroy(first, rate))
{
boil_unit(first);
cur_count--;
}
if (check_component_wear(engine, old_count, old_power))
return;
}
if (old_count < engine->max_capacity && cur_count == engine->max_capacity)
suspend_jobs(true);
else if (cur_count <= engine->max_power+1 && old_count > engine->max_power+1)
suspend_jobs(false);
set_steam_amount(cur_count);
int cur_power = std::min(engine->max_power, cur_count);
if (cur_power != old_power)
{
auto mptr = df::machine::find(machine.machine_id);
if (mptr)
mptr->cur_power += (cur_power - old_power)*100;
}
}
// Furnaces need architecture, and this is a workshop
// only because furnaces cannot connect to machines.
DEFINE_VMETHOD_INTERPOSE(bool, needsDesign, ())
{
if (get_steam_engine())
return true;
return INTERPOSE_NEXT(needsDesign)();
}
// Machine interface
DEFINE_VMETHOD_INTERPOSE(void, getPowerInfo, (df::power_info *info))
{
if (auto engine = get_steam_engine())
{
info->produced = std::min(engine->max_power, get_steam_amount())*100;
info->consumed = 10 - int(get_component_quality(0));
return;
}
INTERPOSE_NEXT(getPowerInfo)(info);
}
DEFINE_VMETHOD_INTERPOSE(df::machine_info*, getMachineInfo, ())
{
if (get_steam_engine())
return &machine;
return INTERPOSE_NEXT(getMachineInfo)();
}
DEFINE_VMETHOD_INTERPOSE(bool, isPowerSource, ())
{
if (get_steam_engine())
return true;
return INTERPOSE_NEXT(isPowerSource)();
}
DEFINE_VMETHOD_INTERPOSE(void, categorize, (bool free))
{
if (get_steam_engine())
{
auto &vec = world->buildings.other[buildings_other_id::ANY_MACHINE];
insert_into_vector(vec, &df::building::id, (df::building*)this);
}
INTERPOSE_NEXT(categorize)(free);
}
DEFINE_VMETHOD_INTERPOSE(void, uncategorize, ())
{
if (get_steam_engine())
{
auto &vec = world->buildings.other[buildings_other_id::ANY_MACHINE];
erase_from_vector(vec, &df::building::id, id);
}
INTERPOSE_NEXT(uncategorize)();
}
DEFINE_VMETHOD_INTERPOSE(bool, canConnectToMachine, (df::machine_tile_set *info))
{
if (auto engine = get_steam_engine())
{
int real_cx = centerx, real_cy = centery;
bool ok = false;
for (size_t i = 0; i < engine->gear_tiles.size(); i++)
{
// the original function connects to the center tile
centerx = x1 + engine->gear_tiles[i].x;
centery = y1 + engine->gear_tiles[i].y;
if (!INTERPOSE_NEXT(canConnectToMachine)(info))
continue;
ok = true;
break;
}
centerx = real_cx; centery = real_cy;
return ok;
}
else
return INTERPOSE_NEXT(canConnectToMachine)(info);
}
// Operation logic
DEFINE_VMETHOD_INTERPOSE(bool, isUnpowered, ())
{
if (auto engine = get_steam_engine())
{
df::coord water, magma;
return !find_liquids(&water, &magma, engine->is_magma, 3);
}
return INTERPOSE_NEXT(isUnpowered)();
}
DEFINE_VMETHOD_INTERPOSE(void, updateAction, ())
{
if (auto engine = get_steam_engine())
{
if (is_fully_built())
update_working(engine);
else
update_under_construction(engine);
if (flags.bits.almost_deleted)
return;
}
INTERPOSE_NEXT(updateAction)();
}
DEFINE_VMETHOD_INTERPOSE(void, drawBuilding, (df::building_drawbuffer *db, int16_t unk))
{
INTERPOSE_NEXT(drawBuilding)(db, unk);
if (auto engine = get_steam_engine())
{
if (!is_fully_built())
return;
// If machine is running, tweak gear assemblies
auto mptr = df::machine::find(machine.machine_id);
if (mptr && (mptr->visual_phase & 1) != 0)
{
for (size_t i = 0; i < engine->gear_tiles.size(); i++)
{
auto pos = engine->gear_tiles[i];
db->tile[pos.x][pos.y] = 42;
}
}
// Use the hearth color to display power level
if (engine->hearth_tile.isValid())
{
auto pos = engine->hearth_tile;
int power = std::min(engine->max_power, get_steam_amount());
db->fore[pos.x][pos.y] = hearth_colors[power][0];
db->bright[pos.x][pos.y] = hearth_colors[power][1];
}
// Set liquid indicator state
if (engine->water_tile.isValid() || engine->magma_tile.isValid())
{
df::coord water, magma;
find_liquids(&water, &magma, engine->is_magma, 3);
df::coord dwater, dmagma;
find_liquids(&dwater, &dmagma, engine->is_magma, 5);
if (engine->water_tile.isValid())
{
if (!water.isValid())
db->fore[engine->water_tile.x][engine->water_tile.y] = 0;
else if (!dwater.isValid())
db->bright[engine->water_tile.x][engine->water_tile.y] = 0;
}
if (engine->magma_tile.isValid() && engine->is_magma)
{
if (!magma.isValid())
db->fore[engine->magma_tile.x][engine->magma_tile.y] = 0;
else if (!dmagma.isValid())
db->bright[engine->magma_tile.x][engine->magma_tile.y] = 0;
}
}
}
}
DEFINE_VMETHOD_INTERPOSE(void, deconstructItems, (bool noscatter, bool lost))
{
if (get_steam_engine())
{
// Explode if any steam left
if (int amount = get_steam_amount())
{
make_explosion(
df::coord((x1+x2)/2, (y1+y2)/2, z),
40 + amount * 20
);
random_boil();
}
}
INTERPOSE_NEXT(deconstructItems)(noscatter, lost);
}
};
IMPLEMENT_VMETHOD_INTERPOSE(workshop_hook, needsDesign);
IMPLEMENT_VMETHOD_INTERPOSE(workshop_hook, getPowerInfo);
IMPLEMENT_VMETHOD_INTERPOSE(workshop_hook, getMachineInfo);
IMPLEMENT_VMETHOD_INTERPOSE(workshop_hook, isPowerSource);
IMPLEMENT_VMETHOD_INTERPOSE(workshop_hook, categorize);
IMPLEMENT_VMETHOD_INTERPOSE(workshop_hook, uncategorize);
IMPLEMENT_VMETHOD_INTERPOSE(workshop_hook, canConnectToMachine);
IMPLEMENT_VMETHOD_INTERPOSE(workshop_hook, isUnpowered);
IMPLEMENT_VMETHOD_INTERPOSE(workshop_hook, updateAction);
IMPLEMENT_VMETHOD_INTERPOSE(workshop_hook, drawBuilding);
IMPLEMENT_VMETHOD_INTERPOSE(workshop_hook, deconstructItems);
/*
* Hook for the dwarfmode screen. Tweaks the build menu
* behavior to suit the steam engine building more.
*/
struct dwarfmode_hook : df::viewscreen_dwarfmodest
{
typedef df::viewscreen_dwarfmodest interpose_base;
steam_engine_workshop *get_steam_engine()
{
if (ui->main.mode == ui_sidebar_mode::Build &&
ui_build_selector->stage == 1 &&
ui_build_selector->building_type == building_type::Workshop &&
ui_build_selector->building_subtype == workshop_type::Custom)
{
return find_steam_engine(ui_build_selector->custom_type);
}
return NULL;
}
void check_hanging_tiles(steam_engine_workshop *engine)
{
using df::global::cursor;
if (!engine) return;
bool error = false;
int x1 = cursor->x - engine->def->workloc_x;
int y1 = cursor->y - engine->def->workloc_y;
for (int x = 0; x < engine->def->dim_x; x++)
{
for (int y = 0; y < engine->def->dim_y; y++)
{
if (ui_build_selector->tiles[x][y] >= 5)
continue;
auto ptile = Maps::getTileType(x1+x,y1+y,cursor->z);
if (ptile && !isOpenTerrain(*ptile))
continue;
ui_build_selector->tiles[x][y] = 6;
error = true;
}
}
if (error)
{
const char *msg = "Hanging - cover channels with down stairs.";
ui_build_selector->errors.push_back(new std::string(msg));
}
}
DEFINE_VMETHOD_INTERPOSE(void, feed, (set<df::interface_key> *input))
{
steam_engine_workshop *engine = get_steam_engine();
// Selector insists that workshops cannot be placed hanging
// unless they require magma, so pretend we always do.
if (engine)
engine->def->needs_magma = true;
INTERPOSE_NEXT(feed)(input);
// Restore the flag
if (engine)
engine->def->needs_magma = engine->is_magma;
// And now, check for open space. Since these workshops
// are machines, they will collapse over true open space.
check_hanging_tiles(get_steam_engine());
}
};
IMPLEMENT_VMETHOD_INTERPOSE(dwarfmode_hook, feed);
/*
* Scan raws for matching workshop buildings.
*/
static bool find_engines(color_ostream &out)
{
engines.clear();
auto &wslist = world->raws.buildings.workshops;
for (size_t i = 0; i < wslist.size(); i++)
{
if (strstr(wslist[i]->code.c_str(), "STEAM_ENGINE") == NULL)
continue;
steam_engine_workshop ws;
ws.def = wslist[i];
ws.id = ws.def->id;
int bs = ws.def->build_stages;
for (int x = 0; x < ws.def->dim_x; x++)
{
for (int y = 0; y < ws.def->dim_y; y++)
{
switch (ws.def->tile[bs][x][y])
{
case 15:
ws.gear_tiles.push_back(df::coord2d(x,y));
break;
case 19:
ws.hearth_tile = df::coord2d(x,y);
break;
}
if (ws.def->tile_color[2][bs][x][y])
{
switch (ws.def->tile_color[0][bs][x][y])
{
case 1:
ws.water_tile = df::coord2d(x,y);
break;
case 4:
ws.magma_tile = df::coord2d(x,y);
break;
}
}
}
}
ws.is_magma = ws.def->needs_magma;
ws.max_power = ws.is_magma ? 5 : 3;
ws.max_capacity = ws.is_magma ? 10 : 6;
ws.wear_temp = ws.is_magma ? 12000 : 11000;
if (!ws.gear_tiles.empty())
engines.push_back(ws);
else
out.printerr("%s has no gear tiles - ignoring.\n", wslist[i]->code.c_str());
}
return !engines.empty();
}
DFHACK_PLUGIN_IS_ENABLED(is_enabled);
static void enable_hooks(bool enable)
{
is_enabled = enable;
INTERPOSE_HOOK(liquid_hook, getItemDescription).apply(enable);
INTERPOSE_HOOK(liquid_hook, adjustTemperature).apply(enable);
INTERPOSE_HOOK(liquid_hook, checkTemperatureDamage).apply(enable);
INTERPOSE_HOOK(workshop_hook, needsDesign).apply(enable);
INTERPOSE_HOOK(workshop_hook, getPowerInfo).apply(enable);
INTERPOSE_HOOK(workshop_hook, getMachineInfo).apply(enable);
INTERPOSE_HOOK(workshop_hook, isPowerSource).apply(enable);
INTERPOSE_HOOK(workshop_hook, categorize).apply(enable);
INTERPOSE_HOOK(workshop_hook, uncategorize).apply(enable);
INTERPOSE_HOOK(workshop_hook, canConnectToMachine).apply(enable);
INTERPOSE_HOOK(workshop_hook, isUnpowered).apply(enable);
INTERPOSE_HOOK(workshop_hook, updateAction).apply(enable);
INTERPOSE_HOOK(workshop_hook, drawBuilding).apply(enable);
INTERPOSE_HOOK(workshop_hook, deconstructItems).apply(enable);
INTERPOSE_HOOK(dwarfmode_hook, feed).apply(enable);
}
DFhackCExport command_result plugin_onstatechange(color_ostream &out, state_change_event event)
{
switch (event) {
case SC_WORLD_LOADED:
if (find_engines(out))
{
out.print("Detected steam engine workshops - enabling plugin.\n");
enable_hooks(true);
}
else
enable_hooks(false);
break;
case SC_WORLD_UNLOADED:
enable_hooks(false);
engines.clear();
break;
default:
break;
}
return CR_OK;
}
DFhackCExport command_result plugin_init ( color_ostream &out, std::vector <PluginCommand> &commands)
{
if (Core::getInstance().isWorldLoaded())
plugin_onstatechange(out, SC_WORLD_LOADED);
return CR_OK;
}
DFhackCExport command_result plugin_shutdown ( color_ostream &out )
{
enable_hooks(false);
return CR_OK;
}
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