/* $Id: weaponhookcut.cpp,v 1.7 2005/10/17 15:13:39 pohlt Exp $ */

#include "weaponhookcut.hpp"
#include "world.hpp"
#include "avatar.hpp"
#include "rope.hpp"
#include "hook.hpp"

bool WeaponHookCut::reallyShoot( World* world, Avatar* avatar,
                                 const StationaryGun* gun ) const {
	Rope* rope = selectRopeForAction( avatar );
	if( rope ) {
		rope->setRemoveMeAfterUpdate( true );
		return true;
	}

	return false;
}

/*############################################################################*/

Rope* WeaponHookCut::selectRopeForAction( const Avatar* avatar ) const {
	const int nAttachedObjects = avatar->getNAttachedObjects();

	// prepare different rope classes
	const int N_ROPE_CLASSES = 4;
	Rope* ropeClass[N_ROPE_CLASSES];
	for( int a = 0; a < N_ROPE_CLASSES; a++ ) ropeClass[a] = NULL;

	// go through list of attached objects
	for( int a = 0; a < nAttachedObjects; a++ ) {

		// find a rope which avatar owns
		if( avatar->getAttachedObject( a )->getID() != ROPE ||
		    (dynamic_cast<Rope*>(avatar->getAttachedObject( a )))->getOwner() !=
		    avatar->getPlayer()->getPlayerOrTeamID() )
			continue;

		// what's at the other end of the rope?
		const Object* otherAttachedObject = (dynamic_cast<Rope*>(avatar->getAttachedObject( a )))->getOtherAttachedObject( avatar );

		// nothing? strange, but don't touch
		if( ! otherAttachedObject ) continue; // rope will be deleted soon

		// set currentClass according to rope state
		int currentClass;
		if( otherAttachedObject->getID() == HOOK )
			if( ((Hook*)otherAttachedObject)->isGrounded() )
				currentClass = 1;
			else
				currentClass = 0;
		else
			if( otherAttachedObject->getID() == BALL )
				currentClass = 3;
			else
				currentClass = 2;
		if( ! ropeClass[currentClass] ) ropeClass[currentClass] = dynamic_cast<Rope*>(avatar->getAttachedObject( a ));
	}

	// cut the rope with the lowest class and stop
	for( int a = 0; a < N_ROPE_CLASSES; a++ ) {
		if( ropeClass[a] ) return ropeClass[a];
	}

	return NULL;
}