Add a plugin implementing 'add spatter to item' reactions.

NEWS

@@ -60,4 +60,7 @@ DFHack v0.34.11-r2 (UNRELEASED)
     and restricting operator skill range like with ordinary workshops.
     Disclaimer: not in any way to undermine the future siege update from Toady, but the aiming
     logic of existing engines hasn't been updated since 2D, and is almost useless as/is.
-
+  New Add Spatter plugin:
+    Detects reactions with certain names in the raws, and changes them from adding
+    improvements to adding item contaminants. This allows directly covering items
+    with poisons. The added spatters are immune both to water and 'clean items'.

library/include/modules/Materials.h

@@ -131,6 +131,11 @@ namespace DFHack
         bool findPlant(const std::string &token, const std::string &subtoken);
         bool findCreature(const std::string &token, const std::string &subtoken);
 
+        bool findProduct(df::material *material, const std::string &name);
+        bool findProduct(const MaterialInfo &info, const std::string &name) {
+            return findProduct(info.material, name);
+        }
+
         std::string getToken();
         std::string toString(uint16_t temp = 10015, bool named = true);
 

library/modules/Materials.cpp

@@ -283,6 +283,19 @@ bool MaterialInfo::findCreature(const std::string &token, const std::string &sub
     return decode(-1);
 }
 
+bool MaterialInfo::findProduct(df::material *material, const std::string &name)
+{
+    if (!material || name.empty())
+        return decode(-1);
+
+    auto &pids = material->reaction_product.id;
+    for (size_t i = 0; i < pids.size(); i++)
+        if ((*pids[i]) == name)
+            return decode(material->reaction_product.material, i);
+
+    return decode(-1);
+}
+
 std::string MaterialInfo::getToken()
 {
     if (isNone())

plugins/CMakeLists.txt

@@ -47,6 +47,9 @@ install(DIRECTORY lua/
 install(DIRECTORY raw/
         DESTINATION ${DFHACK_DATA_DESTINATION}/raw
         FILES_MATCHING PATTERN "*.txt")
+install(DIRECTORY raw/
+        DESTINATION ${DFHACK_DATA_DESTINATION}/raw
+        FILES_MATCHING PATTERN "*.diff")
 
 # Protobuf
 FILE(GLOB PROJECT_PROTOS ${CMAKE_CURRENT_SOURCE_DIR}/proto/*.proto)
@@ -120,6 +123,7 @@ if (BUILD_SUPPORTED)
     DFHACK_PLUGIN(steam-engine steam-engine.cpp)
     DFHACK_PLUGIN(power-meter power-meter.cpp LINK_LIBRARIES lua)
     DFHACK_PLUGIN(siege-engine siege-engine.cpp LINK_LIBRARIES lua)
+    DFHACK_PLUGIN(add-spatter add-spatter.cpp)
     # not yet. busy with other crud again...
     #DFHACK_PLUGIN(versionosd versionosd.cpp)
 endif()