Building hacks changes.

Fixed buildings not consuming correct value of power. Added way to ignore unpowered state. Added setPower/getPower to change how much power building uses on the fly.

Lua API.rst

@@ -3329,21 +3329,26 @@ Functions
 ``registerBuilding(table)`` where table must contain name, as a workshop raw name, the rest are optional:
  1. name -- custom workshop id e.g. ``SOAPMAKER``
  2. fix_impassible -- if true make impassible tiles impassible to liquids too
- 3. consume -- how much machine power is needed to work. Disables reactions if not supplied enough
+ 3. consume -- how much machine power is needed to work. Disables reactions if not supplied enough and needs_power=1
- 4. produce -- how much machine power is produced. Use discouraged as there is no way to change this at runtime
+ 4. produce -- how much machine power is produced.
- 5. gears -- a table or ``{x=?,y=?}`` of connection points for machines
+ 5. needs_power -- if produced in network < consumed stop working, default true
- 6. action -- a table of number (how much ticks to skip) and a function which gets called on shop update
+ 6. gears -- a table or ``{x=?,y=?}`` of connection points for machines
- 7. animate -- a table of frames which can be a table of:
+ 7. action -- a table of number (how much ticks to skip) and a function which gets called on shop update
+ 8. animate -- a table of frames which can be a table of:
 
     a. tables of 4 numbers ``{tile,fore,back,bright}`` OR
     b. empty table (tile not modified) OR
     c. ``{x=<number> y=<number> + 4 numbers like in first case}``, this generates full frame useful for animations that change little (1-2 tiles)
- 8. canBeRoomSubset -- a flag if this building can be counted in room. 1 means it can, 0 means it can't and -1 default building behaviour
+ 9. canBeRoomSubset -- a flag if this building can be counted in room. 1 means it can, 0 means it can't and -1 default building behaviour
 
 Animate table also might contain:
  1. frameLenght -- how many ticks does one frame take OR
  2. isMechanical -- a bool that says to try to match to mechanical system (i.e. how gears are turning)
 
+``getPower(building)`` returns two number - produced and consumed power if building can be modified and returns nothing otherwise
+
+``setPower(building,produced,consumed)`` sets current productiona and consumption for a building.
+
 Examples
 --------
 

NEWS

@@ -10,6 +10,7 @@ DFHack Future
     Fixes
         Made PRELOAD_LIB more extensible on Linux
         add-spatter/eventful: Fixed crash on world load
+        building-hacks: made buildings produce/consume correct amount of power
         Gave add-thought a proper subthought arg.
         fix-armory compiles and is available again (albeit with issues)
         gui/gm-editor: Added search option (accessible with "s")
@@ -24,6 +25,7 @@ DFHack Future
         tradereq-pet-gender: Displays pet genders on the trade request screen
     Removed
     Misc Improvements
+        building-hacks: Added a way to allow building to work even if it consumes more power than is available. Added setPower/getPower functions.
         catsplosion: Can now trigger pregnancies in (most) other creatures
         exportlegends: 'info' and 'all' exports legends_plus xml with more data for legends utilities
         remotefortressreader: Exposes more information

plugins/building-hacks.cpp

@@ -19,6 +19,8 @@
 #include "df/coord.h"
 #include "df/tile_building_occ.h"
 #include "df/building_drawbuffer.h"
+#include "df/general_ref_creaturest.h" // needed for power information storage
+#include "modules/Buildings.h"
 
 #include <map>
 
@@ -42,6 +44,7 @@ struct workshop_hack_data
     //machine stuff
     df::machine_tile_set connections;
     df::power_info powerInfo;
+	bool needs_power;
     //animation
     std::vector<std::vector<graphic_tile> > frames;
     bool machine_timing; //6 frames used in vanilla
@@ -60,6 +63,7 @@ DFHACK_PLUGIN_LUA_EVENTS {
     DFHACK_LUA_EVENT(onUpdateAction),
     DFHACK_LUA_END
 };
+
 struct work_hook : df::building_workshopst{
     typedef df::building_workshopst interpose_base;
 
@@ -77,6 +81,54 @@ struct work_hook : df::building_workshopst{
     {
         return getBuildStage() >= getMaxBuildStage();
     }
+	bool get_current_power(df::power_info* info)
+	{
+		if (workshop_hack_data* def = find_def())
+		{
+			df::general_ref_creaturest* ref = static_cast<df::general_ref_creaturest*>(DFHack::Buildings::getGeneralRef(this, general_ref_type::CREATURE));
+			if (ref)
+			{
+				info->produced = ref->anon_1;
+				info->consumed = ref->anon_2;
+				return true;
+			}
+			else
+			{
+				info->produced = def->powerInfo.produced;
+				info->consumed = def->powerInfo.consumed;
+				return true;
+			}
+			//try getting ref, if not return from def
+		}
+		return false;
+	}
+	void set_current_power(int produced, int consumed)
+	{
+		if(machine.machine_id != -1) //if connected to machine, update the machine network production
+		{
+			df::machine* target_machine = df::machine::find(machine.machine_id);
+			if (target_machine)
+			{
+				df::power_info old_power;
+				get_current_power(&old_power);
+				target_machine->min_power += consumed - old_power.consumed;
+				target_machine->cur_power += produced - old_power.produced;
+			}
+		}
+		df::general_ref_creaturest* ref = static_cast<df::general_ref_creaturest*>(DFHack::Buildings::getGeneralRef(this, general_ref_type::CREATURE));
+		if (ref)
+		{
+			ref->anon_1 = produced;
+			ref->anon_2 = consumed;
+		}
+		else
+		{
+			ref = df::allocate<df::general_ref_creaturest>();
+			ref->anon_1 = produced;
+			ref->anon_2 = consumed;
+			general_refs.push_back(ref);
+		}
+	}
     DEFINE_VMETHOD_INTERPOSE(uint32_t,getImpassableOccupancy,())
     {
         if(auto def = find_def())
@@ -91,11 +143,10 @@ struct work_hook : df::building_workshopst{
     {
 		if (auto def = find_def())
 		{
-            info->produced = def->powerInfo.produced;
+			df::power_info power;
-            info->consumed = def->powerInfo.consumed;
+			get_current_power(info);
 			return;
 		}
-
         INTERPOSE_NEXT(getPowerInfo)(info);
     }
     DEFINE_VMETHOD_INTERPOSE(df::machine_info*, getMachineInfo, ())
@@ -108,7 +159,9 @@ struct work_hook : df::building_workshopst{
     DEFINE_VMETHOD_INTERPOSE(bool, isPowerSource, ())
     {
         workshop_hack_data* def=find_def();
-        if (def && def->powerInfo.produced>0)
+		df::power_info power;
+		get_current_power(&power);
+        if (def && power.produced>0)
             return true;
 
         return INTERPOSE_NEXT(isPowerSource)();
@@ -164,7 +217,11 @@ struct work_hook : df::building_workshopst{
     {
         if (auto def = find_def())
         {
-            if(def->powerInfo.consumed==0)
+			if (!def->needs_power)
+				return false;
+			df::power_info power;
+			get_current_power(&power);
+			if (power.consumed == 0)
                 return false;
             if(machine.machine_id==-1)
                 return true;
@@ -257,6 +314,9 @@ IMPLEMENT_VMETHOD_INTERPOSE(work_hook, isUnpowered);
 IMPLEMENT_VMETHOD_INTERPOSE(work_hook, canBeRoomSubset);
 IMPLEMENT_VMETHOD_INTERPOSE(work_hook, updateAction);
 IMPLEMENT_VMETHOD_INTERPOSE(work_hook, drawBuilding);
+
+
+
 void clear_mapping()
 {
     hacked_workshops.clear();
@@ -318,9 +378,10 @@ static int addBuilding(lua_State* L)
     newDefinition.impassible_fix=luaL_checkint(L,2);
     newDefinition.powerInfo.consumed=luaL_checkint(L,3);
     newDefinition.powerInfo.produced=luaL_checkint(L,4);
+	newDefinition.needs_power = luaL_optinteger(L, 5, 1);
     //table of machine connection points
-    luaL_checktype(L,5,LUA_TTABLE);
+    luaL_checktype(L,6,LUA_TTABLE);
-    lua_pushvalue(L,5);
+    lua_pushvalue(L,6);
     lua_pushnil(L);
     while (lua_next(L, -2) != 0) {
         lua_getfield(L,-1,"x");
@@ -337,12 +398,12 @@ static int addBuilding(lua_State* L)
     }
     lua_pop(L,1);
     //updates
-    newDefinition.skip_updates=luaL_optinteger(L,6,0);
+    newDefinition.skip_updates=luaL_optinteger(L,7,0);
     //animation
-    if(!lua_isnil(L,7))
+    if(!lua_isnil(L,8))
     {
-        loadFrames(L,newDefinition,7);
+        loadFrames(L,newDefinition,8);
-        newDefinition.frame_skip=luaL_optinteger(L,8,-1);
+        newDefinition.frame_skip=luaL_optinteger(L,9,-1);
         if(newDefinition.frame_skip==0)
             newDefinition.frame_skip=1;
         if(newDefinition.frame_skip<0)
@@ -350,12 +411,41 @@ static int addBuilding(lua_State* L)
         else
             newDefinition.machine_timing=false;
     }
-    newDefinition.room_subset=luaL_optinteger(L,9,-1);
+    newDefinition.room_subset=luaL_optinteger(L,10,-1);
     hacked_workshops[newDefinition.myType]=newDefinition;
     return 0;
 }
+static void setPower(df::building_workshopst* workshop, int power_produced, int power_consumed)
+{
+	work_hook* ptr = static_cast<work_hook*>(workshop);
+	if (workshop_hack_data* def = ptr->find_def())//check if it's really hacked workshop
+	{
+		ptr->set_current_power(power_produced, power_consumed);
+	}
+}
+static int getPower(lua_State*L)
+{
+	auto workshop = Lua::CheckDFObject<df::building_workshopst>(L, 1);
+	work_hook* ptr = static_cast<work_hook*>(workshop);
+	if (!ptr)
+		return 0;
+	if (workshop_hack_data* def = ptr->find_def())//check if it's really hacked workshop
+	{
+		df::power_info info;
+		ptr->get_current_power(&info);
+		lua_pushinteger(L, info.produced);
+		lua_pushinteger(L, info.consumed);
+		return 2;
+	}
+	return 0;
+}
+DFHACK_PLUGIN_LUA_FUNCTIONS{
+	DFHACK_LUA_FUNCTION(setPower),
+	DFHACK_LUA_END
+};
 DFHACK_PLUGIN_LUA_COMMANDS{
     DFHACK_LUA_COMMAND(addBuilding),
+	DFHACK_LUA_COMMAND(getPower),
     DFHACK_LUA_END
 };
 static void enable_hooks(bool enable)

plugins/lua/building-hacks.lua

@@ -3,6 +3,8 @@ local _ENV = mkmodule('plugins.building-hacks')
     from native:
         addBuilding(custom type,impassible fix (bool), consumed power, produced power, list of connection points,
         update skip(0/nil to disable),table of frames,frame to tick ratio (-1 for machine control))
+        getPower(bld) -- 2 or 0 returns, produced and consumed
+        setPower(bld,produced, consumed)
     from here:
         registerBuilding{
             name -- custom workshop id e.g. SOAPMAKER << required!
@@ -85,6 +87,7 @@ function registerBuilding(args)
     end
     local consume=args.consume or 0
     local produce=args.produce or 0
+    local needs_power=args.needs_power or 1
     local gears=args.gears or {}
     local action=args.action --could be nil
     local updateSkip=0
@@ -103,7 +106,7 @@ function registerBuilding(args)
         frames=processFrames(shop_def,animate.frames)
     end
     local roomSubset=args.canBeRoomSubset or -1
-    addBuilding(shop_id,fix_impassible,consume,produce,gears,updateSkip,frames,frameLength,roomSubset)
+    addBuilding(shop_id,fix_impassible,consume,produce,needs_power,gears,updateSkip,frames,frameLength,roomSubset)
 end
 
 return _ENV