preliminary improvement system

dfhack/include/modules/Items.h

@@ -33,6 +33,24 @@ struct t_item
 	int32_t quality;
 };
 
+struct t_improvement
+{
+	t_material matdesc;
+	int32_t quality;
+};
+
+class DFHACK_EXPORT ItemImprovementDesc
+{
+private:
+	Accessor * AType;
+	Process * p;
+public:
+	ItemImprovementDesc(uint32_t VTable, Process * p);
+	bool getImprovement(uint32_t descptr, t_improvement & imp);
+	uint32_t vtable;
+	uint32_t maintype;
+};
+
 class DFHACK_EXPORT ItemDesc
 {
 private:
@@ -49,6 +67,7 @@ public:
 	std::string className;
 	uint32_t vtable;
 	uint32_t mainType;
+	std::vector<ItemImprovementDesc> improvement;
 };
 
 class DFHACK_EXPORT Items

examples/dfitemdump.cpp

@@ -178,6 +178,8 @@ int main ()
                     uint32_t dqual = p->readWord(decoration + 20);
                     if ( (dtypefunct&0xFFFFFFFFFFFF00FFLL) == 0xCCCCC300000000B8LL)
                         dtype = (dtypefunct>>8)&0xfffffff;
+                    else if ( dtypefunct == 0xCCCCCCCCCCC3C033LL)
+                        dtype = 0;
 		    else
                         printf("bad decoration type function, address=%p\n", (void*) dtypefunc);
                     if (sep)

output/Memory.xml

@@ -1510,7 +1510,10 @@ map_data_1b60_offset          0x1B9c
 	<Offset name="item_quality_accessor">0x238</Offset>
 
 	<Offset name="item_improvement_vector">0xA0</Offset>
+	<Offset name="item_improvement_subindex">0x4</Offset> 
+	<Offset name="item_improvement_index">0x8</Offset> 
 	<Offset name="item_improvement_quality">0x14</Offset> 
+	<Offset name="item_type_accessor">0x14</Offset>  (in the vtable)
         
     </Entry>
                             .-"""-.