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Silveira Neto Posts

Chess Puzzles

Published by Silveira on 2022-01-20
https://lichess.org/training/qkjAy

https://lichess.org/training/aTolD

https://lichess.org/training/yzAtI

Lego Powered UP fibonacci

Published by Silveira on 2021-11-24

Version 1. Stores fibonacci(n) and fibonacci(n+1) in the variables a and b up to n=10. Waits 1 second between each iteration for visibility.

Pseudocode:

a = 0
b = 1
for (10) {
  wait(1)
  b = a + b
  a = b - a
}

Version 2. Blinks a powered up hub (88009 or any other). The led blinks the number of times of fibonacci(n) sequence.

Pseudocode:

a = 0
b = 1
light(RED)
for (10) {
  wait(1)
  b = a + b
  a = b - a
  c = b
  while (c!=0) {
    light(GREEN)
    wait(0.5)
    light(RED)
    c = c - 1
  }
}

It may look like a wait is needed at the second red light but in practice each block takes a little delay to execute.

flatten directory structure

Published by Silveira on 2021-11-16

Move files in current subdirectories to the current directory.

find . -mindepth 2 -type f -exec mv -t . -i '{}' +

Delete local folders that are empty.

 find . -empty -type d -delete

Crysis Remastered on the Switch

Published by Silveira on 2021-06-15

Although the original Crysis was launched in 2007 I have never played it until the Crysis Remastered edition on the Nintendo Switch. I have to say I’m quite impressed and delighted with the experience after finished the main game campaign.

The game

The game is comprised of 10 missions. In the first 6 missions you fight against the Korean People’s Army forces in a island. Those are the best missions. The human enemy is intelligent and powerful yet you slowly learn different ways to approach them. There is a sense of progress and experience gained. Each map is fairly large and you can decide many different ways and routes to approach the missions from more stealth to more powerful. Some of these maps like 2:Recovery, 3:Relic and 4:Assault are masterpieces of level design.

On missions 7 to 10 you fight aliens. While the change is welcome after 6 missions against the KPA, the level design becomes much more linear and the game feels hand-holding. The gameplay devolves into the classic FPS campaign cycle of die, reload last checkpoint, advance a little, and repeat. There is nothing intrinsically wrong with this cycle but after tasting the excellent level design of the first six levels this change feels like a regression.

Aside from the main campaign there is not a multiplayer mode. Replayability comes from the different difficulty levels (easy, normal, hard and delta). You can also replay specific missions from the campaign with adjusted difficulty.

The game on the Switch

Back in the day Crysis was the benchmark on the graphical capabilities of a computer system. Hence the meme “But Can It Run Crysis?”. You needed a beefy computer in order to run Crysis, a feat that my machine could not pull it off. But can the Nintendo Switch run Crysis? Yes, it can. Actually, surprisingly well given this little handheld tablet console limitations.

To this moment Crysis has the best graphics I have ever seen on this console. The lights in the forests are specially realistic. The excellent graphics combined with a smooth refresh rate, tress and buildings you can destroy, enemy intelligence, and excellent level design makes this a great game. There are frame and resolution drops here and there but these were much more forgivable than I was expecting. The game runs really well in docked mode as well specially because the smaller screen is much more forgivable than the big screen I usually play.

Gyro aiming is there and after a few settings adjustments to make it more sensitive it becomes perfect. You use the analog sticks for aiming and the gyro to fine aiming. Similar to what Splatoon does.

Conclusion

I don’t really care about impressive graphics in a game unless they are bundled with a fun game experience. Crysis Remastered is the whole package.

Infinity Boss.three bicycle

Published by Silveira on 2021-06-14

Information retrieved from manufacturer Infinity Cycle Works product page:

Frame Size700C x 18″ Diamond Frame
Frame MaterialAlloy
Front ForkMode 700c Rigid Blade
Drive TrainShimano 7-Speed
ShiftersShimano Revo Twist Shifter 7-Speed
Front DerailleurN/A
Rear DerailleurRD-TX-300 6/7-Speed W/O Bracket
Free WheelShimano TZ21 14-28T
Chain RingsGTS21 170mm 36T 1/2 x 3/32″ Arms Silver No Logo
BrakesYake Mechanical Dual Disc Brakes Front and Rear
Brake LeversDISC BRAKE Brake Levers
ComponentsHybrid Sports-Fit Men’s
SaddleVD842E-01 with silver sides Vader logo
Seat PostSP-005 27.2 x 350mm NO Infinity logo
PedalsMX-606, 9/16″ , Steel Axle Reflector With Ball Berrings
Handle BarsYL-811 Steel Type 620mm 30 Deg.
RimsZLA-021 700Cx1.5 13Gx36H A/V Double wall 1.7mm THICK with size decal, Black
TiresInnova I2209 700 x 38c City Tire A/V Innova Tubes ,Innova black factory logo
Front HubSF-A210F 13Gx36H 3/8″(S45C)X135x 155mm QR, Fits Disc
Rear HubSF-A210R 13Gx36H 3/8″(S45C)X135x 170mm , Fits Disc Nutted Fange
Spokes13 Gauge Steel

USD 219.99 at Costco on 2021-Jun-11.