(svn r15027) -Merge: tomatos and bananas left to be, here is NoAI for all to see.
NoAI is an API (a framework) to build your own AIs in. See: http://wiki.openttd.org/wiki/index.php/AI:Main_Page With many thanks to: - glx and Rubidium for their syncing, feedback and hard work - Yexo for his feedback, patches, and AIs which tested the system very deep - Morloth for his feedback and patches - TJIP for hosting a challenge which kept NoAI on track - All AI authors for testing our AI API, and all other people who helped in one way or another -Remove: all old AIs and their cheats/hacks
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src/ai/api/ai_abstractlist.hpp
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263
src/ai/api/ai_abstractlist.hpp
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/* $Id$ */
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/** @file ai_abstractlist.hpp A list which can keep item/value pairs, which you can walk. */
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/** @defgroup AIList Classes that create a list of items. */
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#ifndef AI_ABSTRACTLIST_HPP
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#define AI_ABSTRACTLIST_HPP
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#include "ai_object.hpp"
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#include <map>
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#include <set>
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class AIAbstractListSorter;
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/**
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* Class that creates a list which can keep item/value pairs, which you can walk.
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*/
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class AIAbstractList : public AIObject {
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public:
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static const char *GetClassName() { return "AIAbstractList"; }
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/** Type of sorter */
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enum SorterType {
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SORT_BY_VALUE, ///< Sort the list based on the value of the item.
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SORT_BY_ITEM, ///< Sort the list based on the item itself.
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};
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private:
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AIAbstractListSorter *sorter;
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SorterType sorter_type;
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bool sort_ascending;
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bool initialized;
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public:
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typedef std::set<int32> AIItemList; //!< The list of items inside the bucket
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typedef std::map<int32, AIItemList> AIAbstractListBucket; //!< The bucket list per value
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typedef std::map<int32, int32> AIAbstractListMap; //!< List per item
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AIAbstractListMap items; //!< The items in the list
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AIAbstractListBucket buckets; //!< The items in the list, sorted by value
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protected:
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/**
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* Add a single item to the list.
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* @param item the item to add. Should be unique, otherwise it is ignored.
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* @note the value is set to 0 by default.
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*/
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void AddItem(int32 item);
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/**
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* Remove a single item from the list.
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* @param item the item to remove. If not existing, it is ignored.
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*/
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void RemoveItem(int32 item);
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public:
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AIAbstractList();
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~AIAbstractList();
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/**
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* Clear the list, making Count() returning 0 and IsEmpty() returning true.
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*/
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void Clear();
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/**
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* Check if an item is in the list.
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* @param item the item to check for.
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* @return true if the item is in the list.
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*/
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bool HasItem(int32 item);
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/**
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* Go to the beginning of the list.
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* @return the item value of the first item.
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*/
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int32 Begin();
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/**
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* Go to the next item in the list.
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* @return the item value of the next item.
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* @note returns 0 if beyond end-of-list. Use HasNext() to check for end-of-list.
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*/
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int32 Next();
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/**
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* Check if a list is empty.
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* @return true if the list is empty.
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*/
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bool IsEmpty();
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/**
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* Check if there is a next element. In other words, if this is true,
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* Next() will return a valid item.
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* @return true if there is a next item.
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*/
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bool HasNext();
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/**
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* Returns the amount of items in the list.
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* @return amount of items in the list.
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*/
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int32 Count();
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/**
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* Get the value that belongs to this item.
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* @param item the item to get the value from
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* @return the value that belongs to this item.
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*/
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int32 GetValue(int32 item);
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/**
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* Set a value of an item directly.
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* @param item the item to set the value for.
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* @param value the value to give to the item
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* @return true if we could set the item to value, false otherwise.
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* @note Changing values of items while looping through a list might cause
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* entries to be skipped. Be very careful with such operations.
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*/
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bool SetValue(int32 item, int32 value);
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/**
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* Sort this list by the given sorter and direction.
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* @param sorter the type of sorter to use
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* @param ascending if true, lowest value is on top, else at bottom.
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* @note the current item stays at the same place.
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*/
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void Sort(SorterType sorter, bool ascending);
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/**
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* Add one list to an other one.
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* @param list The list that will be added to the caller.
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* @post The list to be added ('list') stays unmodified.
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* @note All added items keep their value as it was in 'list'.
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* @note If the item already exists inside the caller, the value of the
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* list that is added is set on the item.
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*/
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void AddList(AIAbstractList *list);
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/**
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* Removes all items with a higher value than 'value'.
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* @param value the value above which all items are removed.
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*/
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void RemoveAboveValue(int32 value);
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/**
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* Removes all items with a lower value than 'value'.
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* @param value the value below which all items are removed.
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*/
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void RemoveBelowValue(int32 value);
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/**
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* Removes all items with a value above start and below end.
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* @param start the lower bound of the to be removed values (exclusive).
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* @param end the upper bound of the to be removed valuens (exclusive).
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*/
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void RemoveBetweenValue(int32 start, int32 end);
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/**
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* Remove all items with this value.
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* @param value the value to remove.
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*/
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void RemoveValue(int32 value);
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/**
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* Remove the first count items.
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* @param count the amount of items to remove.
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*/
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void RemoveTop(int32 count);
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/**
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* Remove the last count items.
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* @param count the amount of items to remove.
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*/
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void RemoveBottom(int32 count);
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/**
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* Remove everything that is in the given list from this list (same item index that is).
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* @param list the list of items to remove.
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* @pre list != NULL
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*/
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void RemoveList(AIAbstractList *list);
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/**
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* Keep all items with a higher value than 'value'.
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* @param value the value above which all items are kept.
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*/
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void KeepAboveValue(int32 value);
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/**
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* Keep all items with a lower value than 'value'.
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* @param value the value below which all items are kept.
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*/
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void KeepBelowValue(int32 value);
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/**
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* Keep all items with a value above start and below end.
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* @param start the lower bound of the to be kept values (exclusive).
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* @param end the upper bound of the to be kept values (exclusive).
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*/
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void KeepBetweenValue(int32 start, int32 end);
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/**
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* Keep all items with this value.
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* @param value the value to keep.
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**/
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void KeepValue(int32 value);
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/**
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* Keep the first count items, i.e. remove everything except the first count items.
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* @param count the amount of items to keep.
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*/
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void KeepTop(int32 count);
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/**
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* Keep the last count items, i.e. remove everything except the last count items.
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* @param count the amount of items to keep.
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*/
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void KeepBottom(int32 count);
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/**
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* Keeps everything that is in the given list from this list (same item index that is).
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* @param list the list of items to keep.
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* @pre list != NULL
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*/
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void KeepList(AIAbstractList *list);
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#ifndef DOXYGEN_SKIP
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/**
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* Used for 'foreach()' and [] get from Squirrel.
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*/
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SQInteger _get(HSQUIRRELVM vm);
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/**
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* Used for 'foreach()' from Squirrel.
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*/
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SQInteger _nexti(HSQUIRRELVM vm);
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/**
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* The Valuate() wrapper from Squirrel.
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*/
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SQInteger Valuate(HSQUIRRELVM vm);
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#else
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/**
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* Give all items a value defined by the valuator you give.
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* @param valuator_function The function which will be doing the valuation.
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* @param params The params to give to the valuators (minus the first param,
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* which is always the index-value we are valuating).
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* @note You can write your own valuators and use them. Just remember that
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* the first parameter should be the index-value, and it should return
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* an integer.
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* @note Example:
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* list.Valuate(AIBridge.GetPrice, 5);
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* list.Valuate(AIBridge.GetMaxLength);
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* function MyVal(bridge_id, myparam) {
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* return myparam * bridge_id; // This is silly
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* }
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* list.Valuate(MyVal, 12);
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*/
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void Valuate(void *valuator_function, int params, ...);
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#endif /* DOXYGEN_SKIP */
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};
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#endif /* AI_LIST_HPP */
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