App Development Exam > App Development Videos > Swift in Xcode: The Complete iOS Development Guide > Animating Images! (SpriteKit : Swift in Xcode)
Animating Images! (SpriteKit : Swift in Xcode) Video Lecture | Swift in Xcode: The Complete iOS Development Guide - App Development
FAQs on Animating Images! (SpriteKit : Swift in Xcode) Video Lecture - Swift in Xcode: The Complete iOS Development Guide - App Development
| 1. How do I animate images using SpriteKit in Swift? |  |
Ans. To animate images using SpriteKit in Swift, you can follow these steps:
1. Create a new SpriteKit project in Xcode.
2. Import SpriteKit framework and add an SKView to your view controller.
3. Create an SKSpriteNode and set its texture to the first frame of your animation.
4. Create an SKAction sequence that changes the texture of the sprite node to different frames of your animation.
5. Run the action on the sprite node using the run() method.
| 2. Can I animate multiple images in SpriteKit? | |
Ans. Yes, you can animate multiple images in SpriteKit. You can create an array of SKTexture objects, each representing a frame of your animation, and then use an SKAction sequence to run through these textures in order. This will create an animation with multiple images.
| 3. How can I control the speed of the animation in SpriteKit? | |
Ans. You can control the speed of the animation in SpriteKit by adjusting the duration of the SKAction sequence that runs through the texture frames. You can increase or decrease the duration to make the animation faster or slower, respectively.
| 4. Can I make my animated images loop indefinitely in SpriteKit? | |
Ans. Yes, you can make your animated images loop indefinitely in SpriteKit. To do this, you can use the SKAction repeatForever() method on your SKAction sequence. This will cause the animation to repeat continuously until you stop it.
| 5. How can I stop or pause the animation in SpriteKit? | |
Ans. To stop or pause the animation in SpriteKit, you can use the SKAction removeFromParent() method on the sprite node that is running the animation. This will remove the sprite node from its parent node and effectively stop the animation. Alternatively, you can use the SKAction runBlock() method to execute a custom block of code that stops or pauses the animation when triggered.
Text Transcript from Video
hey what's going on everybody today I'm
going to show you how to animate images
with first sprite kit and then we'll
move on into the normal Xcode in the
second part of this tutorial so if you
want to skip to either part of the
tutorial be sure to hit the annotations
now anyway without any further ado let's
get started alright so let's say you
have these 16 images right here and each
of these images you want to put in order
and you want to take these images and
make an animation out of them so in
order to do this let's open up Xcode
create a new Xcode project this will be
a game this time click Next enter
product name I'm just going to combine
images click Next and create now I'm
just going to make this a bit bigger and
head over to our game scene swift I'm
going to delete everything that I have
in my did move to view and everything
that I have in my touches began now
first thing we're going to do is go back
to our main desktop here or basically
where you're all your images are stored
we're going to click on all of these
images that you see right here and we're
going to right click and say new folder
with selection now we're going to call
all our images something like images dot
atlas now this atlas basically puts all
of these images you get to get this as
all of these images are now on one sheet
of paper and then we want to take that
one sheet of paper and we want to place
that on our main person and do an
animation accordingly and I'm just going
to go ahead back over to my project and
make this smaller and drag in my images
that atlas into my hierarchy right over
here
now finish head over to our game scene
dot Swift and inside of this we're going
to do a texture atlas so we're going to
save our texture atlas and i'm be making
this a public texture atlas just so we
can access this and such as the touch it
began or basically any other function in
which you want to start the animation
and we're going to make this texture
Atlas equal to an SK texture atlas like
so then open parentheses close
parentheses just so that we have Crete
that created now right underneath this
where you also want to create a texture
array so we're going to save our texture
array
we'll be equal to and this is actually
going to be an open bracket close
bracket and inside of this we're going
to have an array of textures so we're
going to type in SK texture like so and
then open parentheses close parentheses
now inside of our did move to view I'm
just going to type in our texture Atlas
will be equal to and we're going to make
this equal to an sk texture atlas open
parentheses and this is going to be a
texture atlas named and this is going to
be our folder name right up here so just
type in open quotation mark close
quotation mark images like I did right
up here make sure it's capitalized the
proper way
it also will not grab the right thing
and then just tab all that in and now we
want to take all of these images that
are inside of our texture atlas and
apply that to our texture array so we're
going to say for I in 0 dot dot dot and
this is going to be our texture Atlas
dot texture names dot count so it has
all of the names stored inside of this
texture atlas and we're just counting
that and then after this we're going to
say open curly bracket enter close curly
bracket and now we want to grab out of
these names and put them into our
texture array but one thing you will
notice if I build and run this right now
I'd say I do an NS log capital NS log
like so open quotation mark close
quotation mark slash open parentheses
close parentheses and inside of this I
put my texture Atlas texture names this
texture names in itself would actually
be an array but the problem is we need a
sort that array if I were to build and
run this right now you will see how that
texture Atlas texture names is actually
organized so let's head back over here
and you can see it goes nine eight ten
seven thirteen it's not organized
properly so this is essentially what
we're doing in this four statement down
here so now inside of this four
statement we're just going to save our
name is equal to and this is going to be
an open quotation mark close quotation
mark slash open parenthesis closed
parenthesis and this will be equal to
and let's open up our files real quick
as you can see I named them all win
underscore one two three and so on and
so forth so when we take these images be
sure to do that or this will not work
properly if you're trying to organize
things so we need to have our name as
win underscore and this is going to be
right inside of these
parentheses are I value so it's going to
grab all of the wind images inside of
our images Atlas dot PNG be sure to add
that if you have that in your file name
up here and now what we want to do is
place all of these images into our
texture array so in order to do this
we're going to type in texture array dot
append and we're going to append a new
value or basically put inside of our
array a new element and this new element
is going to be an sk texture texture
open parentheses and this is going to be
our image name and then just type in the
capital n am E that you just built right
up here and now this is going to apply
everything that we have inside of our
texture array and now let's actually
apply this to a sprite so let's go down
here and I'm just going to create a new
sprite so let's go up here and I'm going
to make this sprite public so I'm going
to save our main guy will be equal to
and this is going to be an S case sprite
node and then open parentheses close
parentheses and now inside of I did move
to view we want to apply all of our
textures into this main guy so we're
going to say main guide will be equal to
and this is going to be an S case bright
node open parentheses image named and
this image name will be texture Atlas
this time be sure to do that dot text
your names open square bracket close
bracket and we're going to grab the
first image out of our texture atlas and
then just cast this as a string like so
then we can say main guy dot size will
be equal to and this is going to be
equal to a CG size open parentheses a
with a width you can make this whatever
you want mine is going to be 70 by 140
he's about twice as tall as he is wide
so that's what I'm setting him as then
I'm going to set the main guide position
equal to and this is going to be just
the CG point open parentheses and our x
value will be equal to self dot size
width divided by two and our Y value
will be equal to self dot size dot
height divided by two so I'm just
placing them right in the center and
then where you want to add this child on
to our scene so I'm just going to say
self dot and
and this will be our main guy and right
now if I were to build and run this you
will see that he's going to pop up in
the center of our screen everything's
going to be fine but there's no
animation going on so let's apply this
animation to him so go down here to our
touches began and I'm going to make this
animation start as soon as he is touched
or the screen is touched so I'm just
going to say main guide to run action
and this action will be in SK action
repeat action forever and this action
that we will repeat forever is going to
be SK action dot animate dot animate
with textures and this textures is going
to be basically all of this texture
array that we have right up here so I'm
going to go into these textures and I'm
just going to say texture array and then
time per frame how long would you like
each of these images to appear for him
I'm just going to make mine 0.1 you can
make it however fast or slow you want it
to be now let's build and run and as you
can see it builds and runs fine and as
soon as I touch the screen now as you
can see there is a red X that appears
every now and then so let's actually go
back to our texture Atlas and right up
here is the four I in zero so this zero
is actually incorrect this should start
at one as I don't have win underscore
zero so now let's build and run this and
as you can see I will touch the screen
and no more red X appears all right now
let's say you want to do this with a
uiimageview or basically just with any
normal project
let's open up Xcode and create a new
Xcode project this will be a single View
application although this applies to
other things our product name I'm just
going to call mine image language which
will be set to Swift Android devices
will be such a universal click next and
create now let's make this a bit bigger
and head over to our main dot storyboard
and now inside of our main dot
storyboard this animation is very easy
if you just use a UI image view so I'm
just going to click and drag a UI image
view onto my scene like so I'm going to
make it a bit smaller put it right into
the center of our scene and then I'm
going to right click control click and
drag Center vertically and Center
horizontally in the container now let's
open up our assistant editor and we want
to right-click or control click and drag
from our UI image view
the viewcontroller.swift and this will
be our image view and connect and now
that that's all done we need to head
into our viewdidload and this is where
we're going to manage all the animation
so let's go down here and I'm just going
to first create an array of images so
I'm going to save our images names will
be equal to and this will be an open
square bracket close square bracket open
quotation mark close quotation mark
comma and this is where you would put
all your names I have them all done
right now so I'm just going to copy and
paste them all in there but you will
want to do them in order and also just
make sure that all your images are in
there so as you can see I have win one
two three four five six they're all in
order and that's how I want it to
animate so put them in the order as
which you want to animate them now next
thing we need to do is actually create
another array so we're going to save our
images and this will be equal to an
array of UI images like so then after
that you go open parentheses close
parentheses and then enter and we're
going to say for I in 0 dot dot and then
less sign and then we're going to type
in our images names dot count so we're
counting the amount of images in here
and then we're going to have a for
statement accordingly so after this
we're going to say open curly bracket
enter close curly bracket and then and
then instead of this we're going to say
images dot append and we're going to
basically add some more images into here
so we're going to put inside of this
we're going to say UI image open
parenthesis name to end this will be
images names open parentheses close
parentheses eye
so we're grabbing win 1 win 2 and then
we're going to apply those all into our
images append and then we're going to
apply them all into our images right
here and it looks like it's expecting an
exclamation point so just add that in
there now right outside of this we can
say image view dots animation images and
we're going to set this equal to our
images array that we created right up
here so this will be the set of images
that we are going to animate through and
then we're going to easily say image
view dot start animating
and now let's build and run and voila
you have your person animating now if
this is too fast or too slow for you you
can head right back here and you can say
image view and be sure to put it right
above your start animating you can say
image view dot animation duration and
we're going to set this equal to 5
seconds now let's build and run and now
it's going to take five seconds to
animate through all the images that I
have thank you all so much for watching
if you enjoyed this tutorial be sure to
hit that like button down below and if
you want to see more tutorials like this
for me in the future be sure to
subscribe if you want to catch updates
on myself go be sure to check me out on
Twitter anyway thanks again and I will
see you in the next one
and then we're going to just easily say
imageview and then we're just going to
easily say imageview not that
going to show you how to animate images
with first sprite kit and then we'll
move on into the normal Xcode in the
second part of this tutorial so if you
want to skip to either part of the
tutorial be sure to hit the annotations
now anyway without any further ado let's
get started alright so let's say you
have these 16 images right here and each
of these images you want to put in order
and you want to take these images and
make an animation out of them so in
order to do this let's open up Xcode
create a new Xcode project this will be
a game this time click Next enter
product name I'm just going to combine
images click Next and create now I'm
just going to make this a bit bigger and
head over to our game scene swift I'm
going to delete everything that I have
in my did move to view and everything
that I have in my touches began now
first thing we're going to do is go back
to our main desktop here or basically
where you're all your images are stored
we're going to click on all of these
images that you see right here and we're
going to right click and say new folder
with selection now we're going to call
all our images something like images dot
atlas now this atlas basically puts all
of these images you get to get this as
all of these images are now on one sheet
of paper and then we want to take that
one sheet of paper and we want to place
that on our main person and do an
animation accordingly and I'm just going
to go ahead back over to my project and
make this smaller and drag in my images
that atlas into my hierarchy right over
here
now finish head over to our game scene
dot Swift and inside of this we're going
to do a texture atlas so we're going to
save our texture atlas and i'm be making
this a public texture atlas just so we
can access this and such as the touch it
began or basically any other function in
which you want to start the animation
and we're going to make this texture
Atlas equal to an SK texture atlas like
so then open parentheses close
parentheses just so that we have Crete
that created now right underneath this
where you also want to create a texture
array so we're going to save our texture
array
we'll be equal to and this is actually
going to be an open bracket close
bracket and inside of this we're going
to have an array of textures so we're
going to type in SK texture like so and
then open parentheses close parentheses
now inside of our did move to view I'm
just going to type in our texture Atlas
will be equal to and we're going to make
this equal to an sk texture atlas open
parentheses and this is going to be a
texture atlas named and this is going to
be our folder name right up here so just
type in open quotation mark close
quotation mark images like I did right
up here make sure it's capitalized the
proper way
it also will not grab the right thing
and then just tab all that in and now we
want to take all of these images that
are inside of our texture atlas and
apply that to our texture array so we're
going to say for I in 0 dot dot dot and
this is going to be our texture Atlas
dot texture names dot count so it has
all of the names stored inside of this
texture atlas and we're just counting
that and then after this we're going to
say open curly bracket enter close curly
bracket and now we want to grab out of
these names and put them into our
texture array but one thing you will
notice if I build and run this right now
I'd say I do an NS log capital NS log
like so open quotation mark close
quotation mark slash open parentheses
close parentheses and inside of this I
put my texture Atlas texture names this
texture names in itself would actually
be an array but the problem is we need a
sort that array if I were to build and
run this right now you will see how that
texture Atlas texture names is actually
organized so let's head back over here
and you can see it goes nine eight ten
seven thirteen it's not organized
properly so this is essentially what
we're doing in this four statement down
here so now inside of this four
statement we're just going to save our
name is equal to and this is going to be
an open quotation mark close quotation
mark slash open parenthesis closed
parenthesis and this will be equal to
and let's open up our files real quick
as you can see I named them all win
underscore one two three and so on and
so forth so when we take these images be
sure to do that or this will not work
properly if you're trying to organize
things so we need to have our name as
win underscore and this is going to be
right inside of these
parentheses are I value so it's going to
grab all of the wind images inside of
our images Atlas dot PNG be sure to add
that if you have that in your file name
up here and now what we want to do is
place all of these images into our
texture array so in order to do this
we're going to type in texture array dot
append and we're going to append a new
value or basically put inside of our
array a new element and this new element
is going to be an sk texture texture
open parentheses and this is going to be
our image name and then just type in the
capital n am E that you just built right
up here and now this is going to apply
everything that we have inside of our
texture array and now let's actually
apply this to a sprite so let's go down
here and I'm just going to create a new
sprite so let's go up here and I'm going
to make this sprite public so I'm going
to save our main guy will be equal to
and this is going to be an S case sprite
node and then open parentheses close
parentheses and now inside of I did move
to view we want to apply all of our
textures into this main guy so we're
going to say main guide will be equal to
and this is going to be an S case bright
node open parentheses image named and
this image name will be texture Atlas
this time be sure to do that dot text
your names open square bracket close
bracket and we're going to grab the
first image out of our texture atlas and
then just cast this as a string like so
then we can say main guy dot size will
be equal to and this is going to be
equal to a CG size open parentheses a
with a width you can make this whatever
you want mine is going to be 70 by 140
he's about twice as tall as he is wide
so that's what I'm setting him as then
I'm going to set the main guide position
equal to and this is going to be just
the CG point open parentheses and our x
value will be equal to self dot size
width divided by two and our Y value
will be equal to self dot size dot
height divided by two so I'm just
placing them right in the center and
then where you want to add this child on
to our scene so I'm just going to say
self dot and
and this will be our main guy and right
now if I were to build and run this you
will see that he's going to pop up in
the center of our screen everything's
going to be fine but there's no
animation going on so let's apply this
animation to him so go down here to our
touches began and I'm going to make this
animation start as soon as he is touched
or the screen is touched so I'm just
going to say main guide to run action
and this action will be in SK action
repeat action forever and this action
that we will repeat forever is going to
be SK action dot animate dot animate
with textures and this textures is going
to be basically all of this texture
array that we have right up here so I'm
going to go into these textures and I'm
just going to say texture array and then
time per frame how long would you like
each of these images to appear for him
I'm just going to make mine 0.1 you can
make it however fast or slow you want it
to be now let's build and run and as you
can see it builds and runs fine and as
soon as I touch the screen now as you
can see there is a red X that appears
every now and then so let's actually go
back to our texture Atlas and right up
here is the four I in zero so this zero
is actually incorrect this should start
at one as I don't have win underscore
zero so now let's build and run this and
as you can see I will touch the screen
and no more red X appears all right now
let's say you want to do this with a
uiimageview or basically just with any
normal project
let's open up Xcode and create a new
Xcode project this will be a single View
application although this applies to
other things our product name I'm just
going to call mine image language which
will be set to Swift Android devices
will be such a universal click next and
create now let's make this a bit bigger
and head over to our main dot storyboard
and now inside of our main dot
storyboard this animation is very easy
if you just use a UI image view so I'm
just going to click and drag a UI image
view onto my scene like so I'm going to
make it a bit smaller put it right into
the center of our scene and then I'm
going to right click control click and
drag Center vertically and Center
horizontally in the container now let's
open up our assistant editor and we want
to right-click or control click and drag
from our UI image view
the viewcontroller.swift and this will
be our image view and connect and now
that that's all done we need to head
into our viewdidload and this is where
we're going to manage all the animation
so let's go down here and I'm just going
to first create an array of images so
I'm going to save our images names will
be equal to and this will be an open
square bracket close square bracket open
quotation mark close quotation mark
comma and this is where you would put
all your names I have them all done
right now so I'm just going to copy and
paste them all in there but you will
want to do them in order and also just
make sure that all your images are in
there so as you can see I have win one
two three four five six they're all in
order and that's how I want it to
animate so put them in the order as
which you want to animate them now next
thing we need to do is actually create
another array so we're going to save our
images and this will be equal to an
array of UI images like so then after
that you go open parentheses close
parentheses and then enter and we're
going to say for I in 0 dot dot and then
less sign and then we're going to type
in our images names dot count so we're
counting the amount of images in here
and then we're going to have a for
statement accordingly so after this
we're going to say open curly bracket
enter close curly bracket and then and
then instead of this we're going to say
images dot append and we're going to
basically add some more images into here
so we're going to put inside of this
we're going to say UI image open
parenthesis name to end this will be
images names open parentheses close
parentheses eye
so we're grabbing win 1 win 2 and then
we're going to apply those all into our
images append and then we're going to
apply them all into our images right
here and it looks like it's expecting an
exclamation point so just add that in
there now right outside of this we can
say image view dots animation images and
we're going to set this equal to our
images array that we created right up
here so this will be the set of images
that we are going to animate through and
then we're going to easily say image
view dot start animating
and now let's build and run and voila
you have your person animating now if
this is too fast or too slow for you you
can head right back here and you can say
image view and be sure to put it right
above your start animating you can say
image view dot animation duration and
we're going to set this equal to 5
seconds now let's build and run and now
it's going to take five seconds to
animate through all the images that I
have thank you all so much for watching
if you enjoyed this tutorial be sure to
hit that like button down below and if
you want to see more tutorials like this
for me in the future be sure to
subscribe if you want to catch updates
on myself go be sure to check me out on
Twitter anyway thanks again and I will
see you in the next one
and then we're going to just easily say
imageview and then we're just going to
easily say imageview not that
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Nov 22, 2024 Last updated |
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