Task in UnrealEngine

 https://www.youtube.com/watch?v=1lBadANnJaw

One Frame Animation

SkeletalMesh->PlayAnimation(MyAnim, false);
SkeletalMesh->bPauseAnims = true;
UAnimSingleNodeInstance* Inst = Cast<UAnimSingleNodeInstance>(AnimInstance);
if ( Inst )
{
    Inst->SetPosition(AnimTime);
}

Compile MD5 using openssl on linux

 cc digestMD5.c -o digestMd5 -L/usr/openssl/lib64 -lssl -lcrypto -ldl

I installed openssl into /usr/openssl

Or openssl is located in /opt/openssl

The Greek Alphabet, english pronunciation for math

 https://www.youtube.com/watch?v=PStgY5AcEIw

Baseball terms

심판 - Umpire

투수 - Pitcher

포수 - Catcher

타자 - Batter

지명타자 - Designated hitter

1루수 - First baseman

2루수 - Second baseman

3루수 - Third baseman

유격수 - Shortstop

좌익수 - Left fielder

중견수 - Center fielder

우익수 - Right fielder

중간계투/구원투수 - Bullpen pitcher

마무리투수 - Closer

주자 - Runner

​

눈치채셨겠지만

1루는 First base

2루는 Second base

3루는 Third base 입니다.

공을던지다 - Pitch the ball

공을 치다 - Hit the ball

파울 - foul ball

1루타 - single

2루타 - double

3루타 - triple

내야안타 - infield hit

홈런 - homerun

만루홈런 - grand slam

도루 - Stolen base

볼넷 - base on balls

삼진 - Strike out

직구 - Fast ball

변화구 - Breaking ball

내야 땅볼 - Ground out

직선타구 - Line drive

뜬공 - Fly ball

견제구 - Pick-off throw

땅볼 - Ground ball

VisualStudio : Find a location in Solution Explorer

 Ctrl + [, S

Collision detection : Circle vs Rectangle

detection only

int CheckHit( F_RECT *prcRect1, F_CIRCLE *pcrCircle2 )

{

    int             nResult = false;

    float           ar;

    if ( ( pcrCircle2->x > prcRect1->fLeft   - pcrCircle2->r ) &&

         ( pcrCircle2->x < prcRect1->fRight  + pcrCircle2->r ) &&

         ( pcrCircle2->y > prcRect1->fTop    - pcrCircle2->r ) &&

         ( pcrCircle2->y < prcRect1->fBottom + pcrCircle2->r ) )

    {

        nResult = true;

        ar = pcrCircle2->r;

        if ( pcrCircle2->x < prcRect1->fLeft ) {

            if ( ( pcrCircle2->y < prcRect1->fTop ) )

            {

                if ( ( DistanceSqr( prcRect1->fLeft,  prcRect1->fTop,

                                    pcrCircle2->x, pcrCircle2->y ) >= ar * ar ) ) {

                    nResult = false;

                }

            }

            else {

                if ( ( pcrCircle2->y > prcRect1->fBottom ) )

                {

                    if ( ( DistanceSqr( prcRect1->fLeft,  prcRect1->fBottom,

                                        pcrCircle2->x, pcrCircle2->y ) >= ar * ar ) ) {

                        nResult = false;

                    }

                }

            }

        }

        else {

            if ( pcrCircle2->x > prcRect1->fRight ) {

                if ( ( pcrCircle2->y < prcRect1->fTop ) )

                {

                    if ( ( DistanceSqr( prcRect1->fRight,  prcRect1->fTop,

                                        pcrCircle2->x, pcrCircle2->y ) >= ar * ar ) ) {

                        nResult = false;

                    }

                }

                else {

                    if ( ( pcrCircle2->y > prcRect1->fBottom ) )

                    {

                        if ( ( DistanceSqr( prcRect1->fRight,  prcRect1->fBottom,

                                            pcrCircle2->x, pcrCircle2->y ) >= ar * ar ) ) {

                            nResult = false;

                        }

                    }

                }

            }

        }

    }

    return nResult;

}