Lets BoneESP

void DrawBone( int StartBone, int EndBone, IClientEntity* target, Color drawCol )
    {
        Vector StartBonePos, EndBonePos;
        Vector StartDrawPos, EndDrawPos;
        if(!target)
          return;

        StartBonePos =GetBonePos(target, StartBone);

        EndBonePos = GetBonePos(target, EndBone);

        if(!WorldToScreen(StartBonePos, StartDrawPos))
            return;

        if(!WorldToScreen(EndBonePos, EndDrawPos))
            return;

       pSurface->DrawSetColor( drawCol );
       pSurface->DrawLine( StartDrawPos.x, StartDrawPos.y, EndDrawPos.x, EndDrawPos.y );
    }

static BYTE iBoneLegL[] = { 24, 23, 22, 1 };
    static BYTE iBoneLegR[] = { 27, 26, 25, 1 };

    static BYTE iBoneBody[] = { 5, 4, 3, 2, 1 };

    static BYTE iBoneArmL[] = { 9, 8, 7, 5 };
    static BYTE iBoneArmR[] = { 15, 14, 13, 5 };

    for(int i = 0; i < 4; i++)
    {    
        DrawBone(iBoneBody[i], iBoneBody[i+1], pBaseEntity, espColor);
    }

    for(int i = 0; i < 3; i++)
    {    
        DrawBone(iBoneLegL[i], iBoneLegL[i+1], pBaseEntity, espColor);
        DrawBone(iBoneLegR[i], iBoneLegR[i+1], pBaseEntity, espColor);

        DrawBone(iBoneArmL[i], iBoneArmL[i+1], pBaseEntity, espColor);
        DrawBone(iBoneArmR[i], iBoneArmR[i+1], pBaseEntity, espColor);
    }