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/* $Id$ */

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/** @file ai_execmode.hpp class to switch the AI to Execute mode */

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#ifndef AI_EXECMODE_HPP

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#define AI_EXECMODE_HPP

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#include "ai_object.hpp"

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/**

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 * Class to switch current mode to Execute mode.

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 * If you create an instance of this class, the mode will be switched to

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 *   Execute. The original mode is stored and recovered from when ever the

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 *   instance is destroyed.

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 * In Execute mode all commands you do are executed for real.

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 */

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class AIExecMode : public AIObject {

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private:

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	AIModeProc *last_mode;

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	AIObject *last_instance;

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protected:

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	/**

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	 * The callback proc for Execute mode.

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	 */

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	static bool ModeProc(TileIndex tile, uint32 p1, uint32 p2, uint procc, int32 costs);

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public:

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	/**

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	 * Creating instance of this class switches the build mode to Execute.

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	 * @note when the instance is destroyed, he restores the mode that was

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	 *   current when the instance was created!

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	 */

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	AIExecMode();

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	/**

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	 * Destroying this instance reset the building mode to the mode it was

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	 *   in when the instance was created.

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	 */

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	~AIExecMode();

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};

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#ifdef DEFINE_SQUIRREL_CLASS

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namespace SQConvert {

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	/* Allow AIExecMode to be used as Squirrel parameter */

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	template <> AIExecMode *GetParam(ForceType<AIExecMode *>, HSQUIRRELVM vm, int index) { SQUserPointer instance; sq_getinstanceup(vm, index, &instance, 0); return (AIExecMode *)instance; }

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}; // namespace SQConvert

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void SQAIExecModeRegister(Squirrel *engine) {

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	DefSQClass <AIExecMode> SQAIExecMode("AIExecMode");

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	SQAIExecMode.PreRegister(engine);

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	SQAIExecMode.AddConstructor(engine);

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	SQAIExecMode.PostRegister(engine);

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}

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#endif /* DEFINE_SQUIRREL_CLASS */

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#endif /* AI_EXECMODE_HPP */