#include "SGameUtil.h"


void GetDirection( K3DMatrix &Out, const K3DVector &StartPos, const K3DVector &EndPos )
{
	K3DVector xVector, yVector, zVector;
	yVector = StartPos-EndPos;
	yVector.Normalize();
	zVector = K3DVector( 0, 0, 1 );

	K3DVectorCross( xVector, zVector, yVector );
	xVector.Normalize();
	K3DVectorCross( zVector, xVector, yVector );
	zVector.Normalize();

	K3DMatrixIdentity( Out );

	Out._11 = xVector.x; Out._12 = xVector.y; Out._13 = xVector.z;
	Out._21 = yVector.x; Out._22 = yVector.y; Out._23 = yVector.z;
	Out._31 = zVector.x; Out._32 = zVector.y; Out._33 = zVector.z;
}


float GetAniPlayRate( DWORD attack_speed, DWORD dwMaxTime, bool bRealTime )
{
	float fAniRate = 4.8f;
	float fBaseAttackRate;

	//msec 변환
	if( bRealTime == false )
		fBaseAttackRate = dwMaxTime/fAniRate; //SMTP
	else
		fBaseAttackRate = (float)dwMaxTime; //msec

	fAniRate = fBaseAttackRate/(attack_speed);

	if( dwMaxTime == 0 )
		fAniRate = 1.f;

	return fAniRate; //기본 배율이 4.8f 는 1배
}