From c6111ba0172da91dbcc8c70dc723378e31bf4593 Mon Sep 17 00:00:00 2001
From: Myk Taylor <myk.taylor@gmail.com>
Date: Sun, 20 Sep 2020 16:38:26 -0700
Subject: [PATCH] expose if buildingplan is enabled to lua

---
 docs/Lua API.rst             | 5 +++--
 plugins/buildingplan.cpp     | 5 +++++
 plugins/lua/buildingplan.lua | 1 +
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/docs/Lua API.rst b/docs/Lua API.rst
index 633ae2278..31e48015a 100644
--- a/docs/Lua API.rst	
+++ b/docs/Lua API.rst	
@@ -3616,8 +3616,9 @@ buildingplan
 
 Native functions:
 
-* ``bool isPlannableBuilding(df::building_type type)`` returns whether the building type is handled by buildingplan
-* ``void addPlannedBuilding(df::building *bld)`` suspends the building jobs and adds the building to the monitor list
+* ``bool isEnabled()`` returns whether the plugin is enabled.
+* ``bool isPlannableBuilding(df::building_type type)`` returns whether the building type is handled by buildingplan.
+* ``void addPlannedBuilding(df::building *bld)`` suspends the building jobs and adds the building to the monitor list.
 * ``void doCycle()`` runs a check for whether buildlings in the monitor list can be assigned items and unsuspended. This method runs automatically twice a game day, so you only need to call it directly if you want buildingplan to do a check right now.
 
 burrows
diff --git a/plugins/buildingplan.cpp b/plugins/buildingplan.cpp
index c42aeac53..4b91d0f84 100644
--- a/plugins/buildingplan.cpp
+++ b/plugins/buildingplan.cpp
@@ -418,6 +418,10 @@ DFhackCExport command_result plugin_onstatechange(color_ostream &out, state_chan
 
 // Lua API section
 
+static bool isEnabled() {
+    return is_enabled;
+}
+
 static bool isPlannableBuilding(df::building_type type) {
     return planner.isPlanableBuilding(type);
 }
@@ -431,6 +435,7 @@ static void doCycle() {
 }
 
 DFHACK_PLUGIN_LUA_FUNCTIONS {
+    DFHACK_LUA_FUNCTION(isEnabled),
     DFHACK_LUA_FUNCTION(isPlannableBuilding),
     DFHACK_LUA_FUNCTION(addPlannedBuilding),
     DFHACK_LUA_FUNCTION(doCycle),
diff --git a/plugins/lua/buildingplan.lua b/plugins/lua/buildingplan.lua
index 071c07395..6bf60f4b8 100644
--- a/plugins/lua/buildingplan.lua
+++ b/plugins/lua/buildingplan.lua
@@ -4,6 +4,7 @@ local _ENV = mkmodule('plugins.buildingplan')
 
  Native functions:
 
+ * bool isEnabled()
  * bool isPlannableBuilding(df::building_type type)
  * void addPlannedBuilding(df::building *bld)
  * void doCycle()