Add cleanitems by Q.

plugins/cleanitems.cpp

@@ -0,0 +1,82 @@
+// Clean Items : Remove contaminants from all objects
+#include <iostream>
+#include <iomanip>
+#include <sstream>
+#include <climits>
+#include <vector>
+#include <set>
+using namespace std;
+
+#include <dfhack/Core.h>
+#include <dfhack/Console.h>
+#include <dfhack/Export.h>
+#include <dfhack/PluginManager.h>
+#include <vector>
+#include <string>
+#include <algorithm>
+#include <dfhack/modules/Items.h>
+
+using namespace DFHack;
+
+DFhackCExport command_result df_cleanitems (Core * c, vector <string> & parameters);
+
+DFhackCExport const char * plugin_name ( void )
+{
+	return "cleanitems";
+}
+
+DFhackCExport command_result plugin_init ( Core * c, std::vector <PluginCommand> &commands)
+{
+	commands.clear();
+	commands.push_back(PluginCommand("cleanitems", "Removes contaminants from items.", df_cleanitems));
+	return CR_OK;
+}
+
+DFhackCExport command_result plugin_shutdown ( Core * c )
+{
+	return CR_OK;
+}
+
+DFhackCExport command_result df_cleanitems (Core * c, vector <string> & parameters)
+{
+	if(parameters.size() > 0)
+	{
+		string & p = parameters[0];
+		if(p == "?" || p == "help")
+		{
+			c->con.print("This utility removes all contaminants from all objects in your fortress.\n");
+			return CR_OK;
+		}
+	}
+	c->Suspend();
+	DFHack::Items * Items = c->getItems();
+
+	vector <t_item*> p_items;
+	if(!Items->readItemVector(p_items))
+	{
+		c->con.printerr("Can't access the item vector.\n");
+		c->Resume();
+		return CR_FAILURE;
+	}
+	std::size_t numItems = p_items.size();
+
+	int cleaned_items = 0, cleaned_total = 0;
+	for (std::size_t i = 0; i < numItems; i++)
+	{
+		t_item * itm = p_items[i];
+		// TODO - get peterix to expand the item base class so it includes this pointer
+		uint32_t cont_ptr = *(uint32_t *)((int8_t *)itm + 0x0064);
+		if (!cont_ptr)
+			continue;
+		std::vector<void *> *contaminants = (std::vector<void *> *)cont_ptr;
+		if (contaminants->size())
+		{
+			cleaned_items++;
+			cleaned_total += contaminants->size();
+			contaminants->clear();
+		}
+	}
+	c->Resume();
+	c->con.print("Done. %d items cleaned of %d contaminants.\n", cleaned_items, cleaned_total);
+	return CR_OK;
+}