Activa JavaScript para disfrutar de los vídeos de la Mediateca.
06 pointing - Contenido educativo
Ajuste de pantallaEl ajuste de pantalla se aprecia al ver el vídeo en pantalla completa. Elige la presentación que más te guste:
in today's video tutorial we're going to
00:00:00
be learning how to use the point
00:00:03
toward an the point in direction blocks under the
00:00:04
motion tab in the online version of
00:00:07
scratch
00:00:09
as you can see i have a
00:00:11
new project open and i have it
00:00:12
named and saved we're going to start
00:00:14
off by selecting our sprites
00:00:17
for today's tutorial i'm going to be
00:00:20
using the shark sprite and i'm also
00:00:23
going to use the fish sprite
00:00:25
the purpose of using that point towards
00:00:32
and the point in direction blocks is
00:00:35
to have one sprite point in the
00:00:37
direction of another sprite so for the
00:00:39
purpose of today's tutorial what i want
00:00:42
is for my shark to point in
00:00:44
the direction of my fish and i
00:00:46
want him to chase my fish
00:00:48
so let's begin programming that
00:00:50
i'm going to need under the events
00:00:54
tab though when clicked block i'm going
00:00:57
to need under the motion the move
00:01:00
block the point into the direction and
00:01:04
point towards block before we get started
00:01:07
with a point towards block let's take
00:01:10
a look at the
00:01:12
point in direction block
00:01:13
so as you can see when i
00:01:17
click on this my shark is moving
00:01:18
to the right
00:01:20
so we're just saying what direction we
00:01:22
want him to point in you can
00:01:24
plug in any number between zero and
00:01:25
three hundred and sixty if i plug
00:01:28
in one eighty i'm saying that i
00:01:30
want him to point in and in
00:01:33
the direction downward
00:01:34
if i put in a negative ninety
00:01:37
going be pointing to the left
00:01:40
and if i plug in zero is
00:01:44
going to be pointing upward
00:01:45
for today's tutorial i'm going to put
00:01:49
him back at ninety degrees so he
00:01:52
is facing the right
00:01:53
now we can throw this point in direction
00:01:57
block back and take a look at
00:01:59
the point towards and addition of these
00:02:01
blocks i need to go to control
00:02:04
and i need to take out the
00:02:06
wait block and also the forever block
00:02:08
i'm going to be putting in my
00:02:12
point towards block my move ten steps
00:02:13
block and my wait one second block
00:02:17
all within the forever block what i'm
00:02:19
saying is that when clicked i want
00:02:22
my shark to point toward my fish
00:02:24
the other option would be your mouse
00:02:28
pointer but for today i'm going to
00:02:30
do
00:02:31
fish and i want him to move
00:02:32
toward the fish ten steps continuously with
00:02:34
one minute or one second intervals
00:02:38
now let's program our fish
00:02:41
i'm going to need the wait
00:02:44
the forever block under control and then
00:02:47
i'm going to need that when clicked
00:02:51
block and i'm also going to need
00:02:54
the move block under motion
00:02:57
i'm going to put my wait and
00:03:05
my move blocks within the forever tab
00:03:07
and as you can see with the
00:03:10
fish i have my wait one second
00:03:11
placed above my ten steps that's because
00:03:13
when the shark is moving i want
00:03:16
my fish to wait so that the
00:03:18
timing between them
00:03:20
is put together better let's see what
00:03:21
happens with the shark when i click
00:03:25
on this
00:03:26
ok perfect that's exactly what i want
00:03:29
him to do
00:03:31
and when i click on my fish
00:03:34
perfect and now let's see when we
00:03:38
have them both going at the same
00:03:40
time if we can achieve that chase
00:03:42
perfect
00:03:50
you also have the option of course
00:03:52
to change the timing for my fish
00:03:53
i want him to go faster than
00:03:56
the shark i'm going to change the
00:03:58
timing from one second to point two
00:04:00
five and then i'm going to change
00:04:02
the timing from a shark to point
00:04:05
fifties there is a little slower than
00:04:07
my fish let's take a look
00:04:09
and that concludes our video tutorial for
00:04:17
it today
00:04:19
- Idioma/s:
- Autor/es:
- David Gonzalez Arroyo
- Subido por:
- David G.
- Licencia:
- Reconocimiento - No comercial - Compartir igual
- Visualizaciones:
- 431
- Fecha:
- 22 de febrero de 2021 - 14:45
- Visibilidad:
- Público
- Centro:
- IES MARIE CURIE Loeches
- Duración:
- 04′ 20″
- Relación de aspecto:
- 1.91:1
- Resolución:
- 1448x758 píxeles
- Tamaño:
- 21.37 MBytes