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SOLID-принципы. Введение в ООП на Python.

SOLID-принципы. Введение в ООП на Python.

Channel: Тимофей Хирьянов

Практика программирования на Python 3, лекция №5

Практика программирования на Python 3, лекция №5

Channel: Тимофей Хирьянов

мфти

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информатика

00:00:02

please sit down, we are in the 9th lecture and but

00:00:11

again, it’s more like a master class format,

00:00:13

I don’t want to tell you a lot as much

00:00:15

as I want to show you,

00:00:18

but there will be a little more stories last

00:00:23

time last time procos told them about the

00:00:28

last time I told you about the course

00:00:31

and I don’t remember the students, I remember exactly

00:00:35

that they factored, we did

00:00:39

object-oriented, just last

00:00:41

time the ball was remade, they stuffed the

00:00:44

bolt class, they did it, I remember exactly, but

00:00:51

the value of

00:00:52

object-oriented

00:00:53

programming is not only that it

00:00:56

allows all the complexity of the work of the

00:00:59

Daud object to be shoved under some kind of cover and under a

00:01:01

certain hood and thereby factoring to

00:01:06

separate this complexity into a separate

00:01:08

entity one of the most important tasks in

00:01:13

organizing the work of a programmer in

00:01:16

organizing program code

00:01:18

is precisely to scatter all the complexity

00:01:22

into some separate

00:01:23

components so that the big one is more or less a

00:01:26

large project could be supported,

00:01:29

read and understood, in short, the value of the

00:01:36

a.p. not only that it allows you to

00:01:39

push data and code into a class to

00:01:43

encapsulate the data along with the code

00:01:45

that serves this data, but also

00:01:48

that

00:01:51

object-oriented

00:01:52

programming perfectly turns

00:01:54

into object-oriented

00:01:55

design as a tool for actually

00:01:59

inventing and, in principle, for the last time

00:02:02

when I began to describe the

00:02:05

attributes and methods of the ball class to the corner,

00:02:09

you already saw that I deliberately did not do it

00:02:12

right away on the computer, but I took it and

00:02:14

drew it until I drew a

00:02:16

rectangle like this in which I wrote,

00:02:19

I have a class ball, here it is there are

00:02:22

some properties

00:02:24

before attributes, here it has some

00:02:29

methods, I won’t even try to

00:02:31

repeat myself now until there’s no need now it’s that

00:02:38

besides this, there are

00:02:42

relationships between classes in

00:02:48

last week in the past worked at

00:02:51

work you already have elements of opium,

00:02:53

in fact, there was a gun that

00:02:56

needed to be rewritten so that it would

00:03:00

work, it would work with this

00:03:03

gun, you will work two more

00:03:08

paws,

00:03:09

that is, this is a week and another

00:03:12

week for those who have Monday off and

00:03:14

I say in any case, do this, you

00:03:17

need will expand adding

00:03:21

functionality gradually, we are now

00:03:24

reaching the level where you

00:03:27

yourself must begin to propose

00:03:29

and change the project your side, you want

00:03:32

something

00:03:33

because what remains is essentially laboratory

00:03:36

work, a cannon and there is such artillery, it’s allotted for a

00:03:40

single week, maybe

00:03:42

even mother will take a bite so that the artillery

00:03:44

dacha and more, it is essentially such a

00:03:46

modernized cannon,

00:03:49

and then your

00:03:52

semester project begins, which you

00:03:54

yourself must conduct like this, but still,

00:03:58

apparently we will start group work in a

00:04:01

week because now

00:04:04

you still need to do it yourself my project

00:04:07

to cook and I won’t say anything today

00:04:10

about the organizational

00:04:12

component,

00:04:13

so the trick is that it turns out that

00:04:15

these are the drawings that I draw of

00:04:17

water and people, I am for communication, but now

00:04:22

communication should be both vertical and so there are

00:04:26

different classes and just

00:04:31

imagine that I’ll take these 2nd grade

00:04:33

several classes and draw them side by side

00:04:35

just on a piece of paper or on the board,

00:04:37

and for example I’ll take and do what

00:04:40

this very eve

00:04:42

Ogan gun was called, it’s called the banking one, it

00:04:45

will be gun, to me the difference is let it be gun,

00:04:50

well, here’s an object, or rather an object class

00:04:54

first turn, yes, the class of guns gave me

00:04:57

one copy of this gun, at

00:05:01

least in the current version, yes, but you

00:05:03

understand, remember which ball this time and

00:05:05

multiplied as soon as it was wrapped

00:05:08

in the class, I created many copies

00:05:10

at all, did not present it to any service, and

00:05:12

I already have a list on created and they all fly,

00:05:16

in principle, with guns, the same thing

00:05:18

will happen, and so I will also write down

00:05:22

some properties and their methods will

00:05:26

not be so few, let’s now

00:05:28

even discuss another thing and is there

00:05:31

any kind of relationship between

00:05:33

them here is the simplest relationship

00:05:39

that can exist is called an

00:05:41

association, an association it draws, it’s just

00:05:45

that a stick connected everything, so you

00:05:47

drew an association, but the most

00:05:49

primitive features we design,

00:05:51

imagine yes, this is a completely living

00:05:53

situation,

00:05:54

choco does not have 2 classes, but he has these classes,

00:05:57

that is, he distinguishes entities from

00:05:58

subject area, etc., and in general,

00:06:00

what kind of business

00:06:01

logic will we have, and he begins

00:06:03

to do object-oriented analysis,

00:06:04

and so this is an object, this is an object, this is an

00:06:06

object, so what is it connected with, and

00:06:10

there is such a thing as an association,

00:06:14

respectively, I have a cannon and a

00:06:18

ball before the target I will have a ball

00:06:22

as a target, it should be somehow,

00:06:24

although no wait, the target is still

00:06:29

unknown what will be the target, yes, in

00:06:31

principle, I can draw a 3rd grade here,

00:06:34

yes, because, well, probably a cannon, it

00:06:36

shoots before a cannon, a

00:06:38

projectile and a target, must be created yes, I’ll call it here as

00:06:42

target target, I honestly don’t know what it

00:06:46

will be like now, I need to look at the

00:06:48

project since it’s better to organize it,

00:06:51

but I see it so far until gumball

00:06:55

target, well, really, it would be more likely to

00:06:59

call ball something, not a bunch of

00:07:02

ball ball, but something like a

00:07:04

projectile, how can you call it a projectile, gone,

00:07:08

for example, yes, probably, but you can call it at

00:07:12

least no, what can you call a

00:07:14

projectile, I’m in the corner, I don’t immediately have the

00:07:21

usual thoughts in my head, but what grannies will add, you can

00:07:26

call it, yes, really,

00:07:30

well, for example, good, but I’ll leave the bolt for now

00:07:33

In short, here’s the thing: my gun, the

00:07:38

mixing doesn’t interact directly,

00:07:40

to be honest, there’s still no direct

00:07:44

association,

00:07:45

imagine a gun pulling the

00:07:48

star method of Gita or a target pulling some

00:07:51

method from Pushkin, it’s strange before these targets

00:07:54

of there are a lot of I can’t imagine somewhere there

00:07:56

are displayed on the map yes there is a possibility of them showing there

00:07:58

maybe they have, well let’s say

00:08:01

they have a show method

00:08:02

let’s say they have a move method for

00:08:05

these trades to move yes they

00:08:07

will be flying there for example conditionally what will

00:08:10

happen to them there will be injections there

00:08:13

naturally By the way,

00:08:15

our method of some kind must have disappeared, it was going to be

00:08:17

displayed, yes, and even then, if now I don’t

00:08:19

divide it into displaying the physics of

00:08:22

the model to the model of the

00:08:24

actual behavior, there should also be

00:08:26

movement accordingly, but once again

00:08:30

the trick is that I have an association,

00:08:33

here it is yes, in fact, before the cannon

00:08:39

fires, the projectile hurts,

00:08:44

and, accordingly, this one hurts,

00:08:47

but I still left wisely, I called it

00:08:48

before, I don’t know what it is here, it’s

00:08:51

called something here or not,

00:08:55

the target is not called ball here in this

00:08:58

version I don’t like the way the

00:09:00

project is being done here now, we’ll

00:09:01

correct it now, in short, I won’t

00:09:04

correct the name right now, although I don’t

00:09:06

like it, in fact, the sooner you

00:09:08

correct the name to adequately, the

00:09:10

better, because then it will

00:09:12

appear many times in the project, it will be

00:09:14

more difficult fix it, pull it out and

00:09:17

rename it, in short, I have an

00:09:22

indirect association like this,

00:09:23

the question arises: is there

00:09:27

a direction of the association?

00:09:29

Well, in short, here I have a target,

00:09:33

these same points are flying to me, balls are

00:09:37

flying from a cannon,

00:09:39

and these balls are they have to check whether they

00:09:44

hit the target and or you have to bid

00:09:47

closely for real I have a

00:09:48

list of

00:09:50

flying projectiles there is a list of targets

00:09:53

I have to go over the target has to

00:09:57

go through the list of projectiles and

00:09:59

say the asset hit it hollow like or the

00:10:02

projectiles should pull the target method and

00:10:05

held there check k-lite for example yes yes

00:10:09

who whom there is such a thing as

00:10:14

the direction of association, that is, we have

00:10:17

a gun, it is obvious that it essentially

00:10:20

generates it was on the floor exactly

00:10:23

generates well, as the object appears, we are

00:10:25

unlikely to store this bolt in the

00:10:28

stash guns there are already created

00:10:30

objects lying around somewhere strange, but

00:10:32

rather we will generate this object at the

00:10:34

moment of the shot, it is logical and

00:10:35

corresponded to what it generates

00:10:39

and, moreover, that is, I can

00:10:43

draw an arrow like this to

00:10:45

which will display

00:10:47

the direction of this association at the same

00:10:50

time the gender does not belong to the gun itself, it

00:10:54

is not its fight, how to say it is a

00:10:56

representative of a special case,

00:10:59

it is not just, well, the class between

00:11:03

which there is an association, it is more difficult to

00:11:09

choose this direction,

00:11:13

this situation may even happen, I am very sorry

00:11:16

that I did not draw it very well,

00:11:18

to the point of redrawing it for

00:11:20

greater clarity,

00:11:22

although I feel sorry for the time, I want to say

00:11:30

that my focus can be

00:11:32

realized in such a way

00:11:34

that I, accordingly, seem to be

00:11:37

amazed, that is, they destroy and

00:11:41

hit,

00:11:46

and accordingly, with such a project, I

00:11:49

project these are my thoughts for now about these

00:11:52

objects and with this approach me that from

00:11:55

some method

00:11:57

there is a polo movement or there I don’t know the

00:12:00

target check there is something else there yes I

00:12:03

will have to go through these trades you try to

00:12:05

check there I get in I don’t get in I understand

00:12:09

option 2

00:12:11

why not you can take it and accordingly they

00:12:14

all get in as if yes but in the sense that they are

00:12:16

amazed, yes they can be vulnerable, until they are amazed, they are

00:12:20

defeated and that they are

00:12:24

amazed, although it’s not really about that they are

00:12:26

amazed envy, make an association like this, that

00:12:29

is, they will go over whether there is

00:12:31

some kind of projectile that

00:12:34

just hit me like a soap

00:12:37

ball, that’s it ready to burst at an hour,

00:12:40

you can program it this way, and why not,

00:12:44

you can program it this way, although it would probably be

00:12:46

more logical to go there,

00:12:49

but what’s interesting is that the third

00:12:53

situation is possible, first of all, according to the principle of keep it

00:12:56

simple stupid,

00:12:59

you can not do it at all, leave a piece

00:13:06

in a purely structural paradigm, then do it

00:13:10

function of the game

00:13:12

function of the game which will be responsible for

00:13:15

checking whether the ball hits the target,

00:13:19

you can do this, you can, I’m telling

00:13:22

you again, it’s very inconvenient, I really want to erase a piece right now,

00:13:25

at least so that I can

00:13:26

free up a little space, I now

00:13:28

need it next to this line, I

00:13:32

drew it unsuccessfully in any case, the properties there, the

00:13:37

methods, in short, don’t even matter, what’s important is that

00:13:41

this association can

00:13:44

be undirected if the relationship

00:13:47

between classes is put into a separate

00:13:49

function that deals with their association, it

00:13:54

pulls from this coordinates, it

00:13:57

pulls from this

00:13:59

one atom, it takes them there, check but what’s the

00:14:02

downside is that the whole complexity of their

00:14:07

relationships with each other will be

00:14:11

hidden inside this function,

00:14:13

that is, to receive and we wanted when we

00:14:16

created the class in general and talked about

00:14:19

responsibility, our class is responsible for and the

00:14:22

question is, who should be responsible for

00:14:27

this rather complicated perhaps the

00:14:29

task of checking for a hit and, well, the

00:14:32

actual call for destruction, where

00:14:35

should this complexity be hidden, who

00:14:37

encapsulates this responsibility in themselves,

00:14:40

you understand a very interesting question, why is

00:14:45

it especially complex, yes, because I

00:14:49

can have many different options

00:14:52

for projectiles, that is, I am drawing class 1 bull, but

00:14:56

in fact, I can

00:14:58

have many of these classes and a gun can generate no

00:15:01

single variant of projectile, but many variants of

00:15:03

projectiles, and there

00:15:08

can be quite a lot of different targets, so

00:15:11

let’s say this thing and say how

00:15:14

this whole association of them can be

00:15:18

made in a separate association class there

00:15:23

may well be one that will

00:15:27

deal specifically with relationships,

00:15:30

that is, it will receive a specific

00:15:32

instance of the ball and a specific target in

00:15:34

order to check if they

00:15:37

match, so that accordingly the target can be

00:15:40

taken away as much the halls and how much it has,

00:15:43

so check whether it has his shields

00:15:45

against this type of score, do

00:15:48

they have the same color on the green ball, does it

00:15:51

only hit green targets,

00:15:52

is it something else, how are you, this is the complexity of

00:15:54

relationships, it can be hidden

00:15:56

inside this I don’t know stake and joker

00:16:01

conditionally and again

00:16:05

you can find some arguments for

00:16:07

some people are against this decision, yes, that

00:16:10

is, conventionally, I will call him before k-lite

00:16:13

checker, but nevertheless, yes, you can

00:16:18

come up with limiting his responsibility to

00:16:20

some task so that he is responsible for a

00:16:23

specific thing and it corresponds so

00:16:25

that it does not work out so what are he something

00:16:27

internal things go too deep into

00:16:30

it, too deep into it, the nose itself goes in there, the

00:16:34

fact that we can, without writing a single

00:16:36

line in a programming language,

00:16:39

discuss architectural issues like this on a piece of paper, this is

00:16:42

already very

00:16:44

cool, it’s true, and it’s possible if you have

00:16:49

some

00:16:50

programming experience, then you can how to

00:16:53

imagine yourself what consequences this

00:16:56

will have

00:16:58

one more thing I’ll also draw now I’ll

00:17:01

erase the properties and methods

00:17:02

here it’s just clean here it’s cool

00:17:05

I’m writing everything to myself yes

00:17:08

we’re all without a rectangle and here’s a certain association I

00:17:10

’ll remove the k-lite checker now because I wo

00:17:14

n’t actually implement it now,

00:17:16

I will have all the complexity hidden

00:17:18

inside the ball, and the direction of this

00:17:20

association will be there, that is, it

00:17:22

will hit in the sense of hitting,

00:17:28

so I said that there are many

00:17:33

different options for projectiles, but how can I

00:17:36

actually display this, that is to do

00:17:39

what a cannon is supposed to shoot a projectile in

00:17:42

any case means there must be a wildly

00:17:44

basic association but it generates

00:17:47

of course I can appear with combinatorial

00:17:52

complexity yes I will draw here y besides

00:17:54

the bolt there are several boxes of

00:17:57

vegetables throwing boxes very much you

00:18:02

now here we will draw a rocket laser yes y

00:18:05

accordingly, one or two and something else will appear for me, and

00:18:08

again there 1 and 2,

00:18:12

my picture will become sharply more complicated and

00:18:14

the number of lines by which this is all

00:18:16

generated, but the cold will multiply,

00:18:19

but I can make the next one among all all all

00:18:21

all projectiles

00:18:23

among all all all all all all all projectiles

00:18:26

I I can take it and, well, isolate it globally,

00:18:31

but it’s global,

00:18:34

maybe it wasn’t a projectile at all, but I’ll still call it

00:18:38

shell and I have these variants of [ __ ], there

00:18:45

can be many different classes of projectiles,

00:18:50

balls, boxes, missiles, lasers, and so I

00:18:55

go and say, here I have there is a bolt, yes, but

00:18:58

there is some kind,

00:19:04

let's say a laser every day, let's say the launch laser will be a

00:19:07

laser gun, in the sense of dragging this is the laser

00:19:09

ray

00:19:11

laser ray, well, somehow they are not glued, it is not

00:19:18

clear that they are a special case

00:19:21

of a projectile and this matter is reflected as

00:19:25

follows, I say these guys, yes, they

00:19:29

are a special case of him

00:19:36

and I’m drawing, I’m just now drawing

00:19:40

this direction of the arrow, but in

00:19:42

my opinion I’m drawing correctly, and in

00:19:44

my opinion I’m not painting it over, it’s just

00:19:47

drawn like this, I’m not sure, to be

00:19:50

honest but the trick is that these and

00:19:54

this relationship is not an association,

00:19:57

this is another relationship, this is just such

00:20:01

a situation that this is a special case of shells, a

00:20:04

specific implementation of this conditionally

00:20:07

abstract one, it has reached well, some kind of

00:20:10

ammunition, it’s clear, it’s unclear, the implementation

00:20:17

is like an abstract class, but they are a class then

00:20:21

yes, I can make objects of

00:20:23

type bool, many different ones, up to objects of type

00:20:26

lazer, kinder, I can also do a lot of them and the

00:20:29

spool of those here and

00:20:31

there, these objects will live for me, fly,

00:20:34

move, but they will be special

00:20:38

cases of this show, it can be

00:20:43

formulated as follows: that

00:20:45

I have a parent class and child

00:20:50

classes, I have a

00:20:53

hierarchy of classes, hierarchy, moreover,

00:20:59

my child classes can inherit the

00:21:04

properties and methods of the parent class and

00:21:08

this is also very cool because then

00:21:11

if there is inheritance, that is, just

00:21:14

like the program code that was written for the

00:21:16

sheila, it will be both here and there then

00:21:19

it turns out that it’s really cool for me, I don’t

00:21:27

have to rewrite this program

00:21:29

code, it’s clear that inheritance is very cool,

00:21:32

this includes the mechanism of

00:21:34

dry programming until the morning Peter

00:21:36

sat down,

00:21:37

but there is such a trick, it’s very important

00:21:41

to think through the abstraction correctly so that it doesn’t

00:21:44

arise that you have a target there but he

00:21:47

looks a bit like a gan there, let me make

00:21:49

a target, this is the most special case, that’s not how it is

00:21:53

depicted this thing is like this, yes, often

00:21:55

in the case of a gan,

00:21:59

you understand, there

00:22:01

is a principle in this madness, I won’t go

00:22:06

deeper into this matter now, the setting

00:22:08

criterion for barbar risks on

00:22:11

but the point is that there should be a

00:22:14

correct abstraction, yes, that is, these are

00:22:17

special cases of

00:22:21

this class and

00:22:24

they should not require anything

00:22:27

additional based on what

00:22:31

their parent class required. Now

00:22:34

let’s say again, let’s not go too

00:22:35

deep into the details, so I

00:22:38

drew a little before

00:22:39

it became clear what a hierarchy is, yes, I

00:22:42

said the words inherited by the way, it may

00:22:45

well be 5 heir of us heir of the

00:22:48

heir of the child may be a

00:22:49

daughter, there may be some kind of

00:22:51

gravity there, it may well be that the bolt is

00:22:55

not necessarily a gravity [ __ ] you will die to the

00:22:58

bolts a modified movement was given

00:23:00

in a different way I was able to move, a special

00:23:05

case of a ball, because everything else is

00:23:06

done in the same way as a ball

00:23:08

bounces off conditionally, a loser doesn’t

00:23:11

bounce off, flies away like we did

00:23:18

last time, we didn’t touch this didcot, this is

00:23:21

the code that you all had, so

00:23:25

I’m now lagging behind you. this is an

00:23:28

unfinished gun, well, first of all, I told you

00:23:32

that there is such a guy here,

00:23:34

so you can ask him to take it here,

00:23:36

say while listening, turn half a turn, he

00:23:38

only monitors the syntax, he didn’t do

00:23:41

any inspections of the knife, the inspector

00:23:43

came to us only errors in this

00:23:46

situation, he will only show there are some

00:23:48

errors there, I don’t see

00:23:52

anything, they don’t show errors, in

00:23:54

fact there are, well, in short, I turned it around, I

00:23:57

really love it when

00:23:58

the interpreter in this case is not

00:24:00

just an interpreter development environment,

00:24:02

it does a detailed inspection, it helps you

00:24:06

see many things that will inevitably lead to

00:24:09

errors in fact, but there is

00:24:12

red, moreover, here on the right on

00:24:16

this

00:24:17

scale, I can actually see the

00:24:20

paint and right here, right here, seriously, in

00:24:24

regions, also explain what’s wrong to Rome

00:24:27

Frida on

00:24:28

parenthesis, remove unnecessary brackets,

00:24:32

okay, let’s start with these same

00:24:37

mistakes, I don’t like the way the

00:24:42

class is named here for dad 8 should

00:24:44

start with a capital letter.

00:24:52

takumi mode past

00:24:59

further class gun

00:25:05

means further further further class target

00:25:16

oh now just a second

00:25:21

close to get

00:25:23

so now it’s not yet but he tells

00:25:26

me that

00:25:27

why are there empty parentheses here there’s

00:25:29

really no need what else is wrong here are the

00:25:32

red errors they require of course

00:25:34

primary then there is how I can’t do this

00:25:36

actually in the committee,

00:25:37

well, here’s a simple thing I have here for now, the

00:25:40

stub function is still there, I even have a

00:25:42

re-therm fall of the

00:25:43

wrong men, so now I

00:25:45

quickly corrected it, so we look at the

00:25:49

ball, everything is more or less yes, it’s red

00:25:52

such errors are not visible, well, what is there in

00:25:56

green, he underlines the arts grid

00:25:58

nuka nuka nuka nuka hit counting test

00:26:01

underline until throw a gun

00:26:04

underline in red what's the matter here because

00:26:08

new attributes are created in the

00:26:10

Asia constructor here I create them at the level of the entire

00:26:12

class well like like in this m2 power of

00:26:15

what is by the way in 2 power interesting this is

00:26:18

not help but

00:26:25

what what am I doing right now.

00:26:30

I just can’t get used to the fact that my

00:26:33

bypass mode is here so well, and actually there you

00:26:42

also need to create a line to the one

00:26:45

that will display the gun

00:26:48

so wonderful conf so teal so can

00:27:02

fix me don’t you hold us this yes there are of

00:27:06

course not so few of us here apparently before the luck

00:27:09

start why the luck of releasing the

00:27:16

mouse button ball

00:27:18

new God yes now we’ll fix it again

00:27:21

for now and now I’ll fix the red errors

00:27:24

so that this thing will basically start then

00:27:26

we’ll clean up the functionality of the target well

00:27:29

as you can see here already yes in

00:27:32

order to write such code you also have to

00:27:34

code there’s a lot to write and

00:27:36

you can start to get confused in it if you don’t

00:27:39

structure it, but nevertheless it’s

00:27:40

structured well and what’s also quite

00:27:43

valuable is that you can collapse it, it also

00:27:46

allows you to hide the complexity, you do

00:27:48

n’t look at it

00:27:49

for the time being, then you don’t need to delve into this matter

00:27:51

or leave it alone that is, here is

00:27:54

the method once and you hid all the contents of the method,

00:27:57

they are also very convenient, okay, I wanted, I

00:28:01

wanted what to do with a constructor and I don’t have the strength,

00:28:09

yes, here and there, six of these lines need to be

00:28:13

shifted to the right to the villages in points sal liv

00:28:20

is equal to 1 so don' t work out of an object

00:28:24

is created in ukraine oval new sales

00:28:30

points above

00:28:32

this apparently there will be points written like this

00:28:35

initialization of the new target all on screw y

00:28:47

red we also look at what errors it still

00:28:50

sees so t1 equals target means we have

00:28:54

here here dev new green yes that is,

00:28:57

there is a function here that creates a

00:29:00

new game and this function is new game, it is

00:29:03

hung on the timer root author 750

00:29:07

new game that is, it is spinning, but again,

00:29:10

most likely not the south, and I should probably

00:29:11

name it, but if it is a spinning

00:29:15

function, it should probably be called let

00:29:18

's warm it up like this somehow now let's

00:29:24

look again at global gant t1 who are

00:29:28

you one target screen 1 aa hair for a long time I have

00:29:38

n't seen this code actually a year without seeing the

00:29:42

objects of the bottom boiler let's still

00:29:44

correct major errors so

00:29:54

here we are stupid for this it’s clear rutman onion

00:30:01

so new game and went to mail.ru

00:30:04

and where is the initialization and the initialization is

00:30:08

somewhere here so well, I don’t like that

00:30:13

I don’t have goals here there is a piece

00:30:17

that creates something and there is

00:30:20

a piece that is also something creates I

00:30:24

would really like to have one place

00:30:26

where everything is created, at least yes, so

00:30:29

I’ll make a function that will be

00:30:31

called like for example, in reality

00:30:38

it will most likely

00:30:39

not be, but nevertheless

00:30:43

global I will need globally who is the

00:30:45

root widget because I’m on I’ll

00:30:48

create it and there will be one canvas for the

00:30:52

entire module,

00:30:53

so I’ll have a global

00:30:55

variable so, well, and accordingly these are

00:30:57

the shuffles and work, what happened there, I

00:31:14

wonder what’s wrong

00:31:19

and

00:31:27

stopped responding to me, I don’t understand

00:31:31

what’s wrong and not on my keyboard once again

00:31:36

and stop watch a bunch maybe the keyboard

00:31:38

popped out stupidly no the keyboard something

00:31:45

flew off so okay I'm

00:31:55

sorry there's a meme or

00:31:57

emulation it's given so

00:32:15

honestly what's wrong I pressed the

00:32:20

mouse wrong the keyboard is reacting the keyboard is dead

00:32:22

and it seems to be on the plane apparently there's still

00:32:25

something there Once again, let's put you down, you're not a fornicator,

00:33:05

some kind of mode, apparently I can't

00:33:08

do anything at all, everything is normal, everything is like that, five

00:33:17

lines to the right, everything is okay, so why do

00:33:27

I have a root frame, why am

00:33:30

I interested in a frame, but I wanted the visible buttons

00:33:32

there in this example, a teacher with a frame

00:33:34

to put it this way the canvas is called Congo so

00:33:38

he’s also comfortable here he’s not

00:33:40

happy that I don’t have an empty line

00:33:42

additional so well look at

00:33:50

the blots we look at the blots that he doesn’t

00:33:58

instance it likes x define out site and

00:34:01

no so look look how

00:34:04

really I have neither at Target should

00:34:08

happen in a good way, but obviously not here,

00:34:12

well, that is, the X-axis of the game

00:34:14

should not be created for me, in theory, here they

00:34:17

can change dates engineers Target

00:34:20

itself here is the model I don’t really

00:34:22

like this orbit that how it

00:34:25

is generated new actually sells in fact,

00:34:31

I don’t have it and now I’m taking into account the code that I

00:34:34

wrote, it’s not about it won’t solve I wrote, but in

00:34:37

my opinion I wrote this code, after all, two

00:34:40

years ago, it seems I wrote it, but a year

00:34:42

ago I looked again, in general, this is the

00:34:45

situation with some outdated code

00:34:48

that still doesn’t work, it’s

00:34:51

actually quite typical and instead of

00:34:53

designing from scratch and writing, I’m

00:34:55

poking around in it. Another big question is what’s

00:34:57

faster, but honestly, my experience tells me

00:34:59

that it won’t be fast for a writer either,

00:35:02

so it’s better and I’ll dig deeper,

00:35:05

especially since it doesn’t cause disgust in it bright

00:35:07

until obviously and special flaws are

00:35:10

sketched and on a special obvious yes the

00:35:12

first class has a constructor 2 3 no

00:35:15

guess why yes so that you can

00:35:18

look at the 1st class and do it like that in the

00:35:21

second or third the same as in the first in the

00:35:24

first there is a line document in the second in the

00:35:26

third there are them at the dacha in the second what else

00:35:29

is there and in the third they are not at all well ok

00:35:32

almost not at all so in short hitting

00:35:39

the balls the target oh so they gathered conf

00:35:48

cowards

00:35:49

targeting your target does not depend on

00:35:52

the position mouse, this is our corner

00:35:54

on the idea of working creed line

00:36:04

I don’t see any obvious errors, I’ll try

00:36:12

to run some as is, yes, I understand

00:36:15

that it’s unlikely that you got it to work, let’s

00:36:18

run it, let’s run the circuit shift of 10 then

00:36:26

throwing is not be fine, well, show me why do

00:36:31

I have a piece there that is still

00:36:34

taken out separately, yes, well, let’s go five

00:36:37

lines from here, they gave them in the afternoon, we’ll drag them to

00:36:41

where we have, by the way, I don’t call the cops,

00:36:44

so yes, let’s call so

00:36:52

main here on we insert

00:36:57

these five lines here

00:37:01

and you need to call it, that is, I

00:37:04

’ll call it naturally before

00:37:07

making a call new game main new game

00:37:16

Rutman onion, so again, I do

00:37:19

n’t like new game, what should I do? You don’t

00:37:22

like some kind of identifier in the

00:37:25

charme share, there is the possibility of global

00:37:27

replacements but at the same time, the intelligent one will find

00:37:29

such a replacement for which it will find this particular

00:37:34

identifier, that is, nowhere there in the

00:37:37

namespace of another but also

00:37:39

called exactly where the extended to it

00:37:42

syntactically analyzes

00:37:44

where this function is called from and

00:37:47

so I can now take by the way I can

00:37:50

kontrol

00:37:51

if I’m not mistaken not kontrol b how can I

00:37:55

jump to the definition of gou that declaration

00:38:01

from the womb

00:38:04

after I had to jump again I’ll

00:38:08

try again,

00:38:09

well, counter that contour shift b she

00:38:13

go out to interrogate my Zimov mode

00:38:16

kontrol b come on, come on, he doesn’t want to

00:38:25

poison to the definition okay with the mouse I'll remove the

00:38:29

Shumovsky mode next time for newspapers

00:38:32

goal the declaration of users

00:38:36

I ended up where I get to the declaration, that

00:38:39

is, to the place where this function is described

00:38:41

new game there are a couple of extra lines that

00:38:45

can be deleted painlessly so yes there is

00:38:53

such a text editor you've already seen it

00:38:55

called wine but the UN it's specific

00:39:01

to Linux, it's a very old text

00:39:04

editor, but it works like a complete

00:39:07

meal and, in fact, many many

00:39:10

things can be done in it, but I

00:39:13

personally really like it,

00:39:15

last time I worked in Rome, conclusion,

00:39:18

we saw this thing last time, but system administrators

00:39:25

love him, some programmers,

00:39:27

so I got hooked on him a long time ago

00:39:29

and I don’t really like him, but in the Punch

00:39:33

Army there’s even one in charme

00:39:35

when you install a patch within the framework of te

00:39:37

desnude, he just suggested it to me

00:39:39

when I installed it a new time, he suggested

00:39:41

a if you want vim mode I want it, well, I have an appetite

00:39:46

for some combinations, but they stop

00:39:48

earning money until they live to jump to the

00:39:50

original one, it’s inconvenient for

00:39:53

sure there is another one, too,

00:39:56

probably Tito’s dimmers have already been done so that

00:39:58

they, too, all work with the standard

00:40:02

configuration, too, these are for the keyboard

00:40:04

combinations

00:40:07

dad, so that’s the same targeting g1

00:40:13

power-up it’s generally not clear that it’s normal

00:40:17

to call variables like that, but it turns out that it’s

00:40:24

Tagan 1 ha Nazin, it turns out,

00:40:29

well, wait, I’m going to go through

00:40:31

all the texts now, rename them, tell me,

00:40:36

it’s clear, nothing is clear, it’s

00:40:39

not true, I’m real, I’m not looking at it right now -

00:40:41

it’s clear in fact, but what

00:40:46

should I do when I don’t like something

00:40:48

there is such an opportunity to take it and

00:40:51

rename it actively by the way it’s created

00:40:53

below where it’s created I don’t see in May it’s not

00:40:58

created one yes so no we’re a little

00:41:06

also 1 equals gun so first of all with

00:41:10

big letter gun so secondly,

00:41:13

yes, naturally, since that’s the case, my gun

00:41:17

should be global, yes, but once

00:41:21

again, I have some kind of

00:41:23

module-level variable, I really don’t like it, I do

00:41:26

n’t even like it, to be honest, yes, I’d

00:41:29

rather let it be canvas like be here in

00:41:33

the charme there is a possibility

00:41:35

of intelligent renaming here there

00:41:37

is there such a 3rd factor right-

00:41:41

clicked on the identifier reflector ren

00:41:44

him and please do so on the sound on you

00:41:50

and he ran through the entire project

00:41:55

wherever canvas he found and replaced

00:41:57

if where - in the comment I came across the

00:41:59

words ends, he didn’t replace if

00:42:02

a variable that is not directly related to

00:42:05

this one, then he didn’t replace it, it’s

00:42:07

called a variable that

00:42:09

contains longer ones, discarding it didn’t

00:42:12

replace it, it’s a very neat

00:42:14

intellectual search with a replacement,

00:42:16

in fact, well, and accordingly,

00:42:19

this one here I also want to replace

00:42:23

ren and it turns out that it’s 1 hectare on 1 hectare in some

00:42:30

places there’s only one gun, I actually have only

00:42:34

one gun, I don’t know if it makes sense why

00:42:38

generate extra ones, let it be just gun,

00:42:43

maybe I want then I refactored

00:42:48

what is actually complicated there not to

00:42:51

be limited to just the fact of presence,

00:42:53

it will be necessary to have 2 guns, too, there will be no

00:42:56

control whether the next move is so

00:43:02

interesting where the numbers will then be needed

00:43:07

this canvas is done on this, but what if

00:43:12

it is not needed well now we’ll see

00:43:16

with everyone somewhere or not so

00:43:21

nothing MT-10 define

00:43:23

everything is clear t1 is equal to target it should

00:43:27

be a global gun target well,

00:43:32

actually let’s rename t1 and

00:43:39

the factor of lines with a small letter

00:43:45

accordingly target so me that

00:43:48

on us open

00:43:50

wow that is, it can’t find t1 which and

00:44:01

you’re the only one

00:44:12

I didn’t understand

00:44:31

even I don’t understand now let’s try again ren

00:44:37

im target it seems to have worked the

00:44:52

bidding is trampling the treasury and tribute to Aida the target was

00:45:00

not created by the ID

00:45:03

dag uncomment well create it

00:45:06

naturally not in zeros yes I need something to

00:45:08

pass into the constructor the actual

00:45:11

parameters before the

00:45:12

target is created where in a specific x and y

00:45:16

and yes and there shouldn’t be anything else, well, a certain

00:45:21

radius is obvious, let’s look at the

00:45:24

floor and the target, because it’s basically similar to me

00:45:29

x y a r that the calamus is always 10 different colors,

00:45:39

so the bow

00:45:56

didn’t reach right here,

00:46:00

no gaze, which one is where,

00:46:05

but by the way, the trick, yes, it turns out that We have a

00:46:13

method, but it’s not written there, well, apparently

00:46:17

this new target is called

00:46:19

to change these values to new ones, but

00:46:25

you can probably look for this, I

00:46:28

can stand on the new target, press alt f7

00:46:31

and it shouldn’t highlight all the

00:46:34

staples, how is this curvature, please show me

00:46:39

alt and all fingers another

00:46:44

keyboard combination is pinching,

00:46:45

here it is the only place of use

00:46:51

we love, but there is only one on still

00:46:54

used there, here you are one Newt orbits

00:47:01

what is love is not clear and the root of the

00:47:09

new game that is, the new game is called

00:47:12

repeatedly and every time what happens is the

00:47:15

binding is garbage some kind of truth, well, who is

00:47:22

looping new guy fashion there is no button

00:47:28

accordion again why stick it repeatedly that is, the

00:47:32

new game function it clearly does strange things

00:47:35

why is it looped there

00:47:36

should be a function that ticks like this

00:47:39

in time kitty for example there is a

00:47:42

fund timer time handler well something like that so yes,

00:47:46

which one will hold the game loop for itself,

00:47:49

well, it’s clear that it

00:47:51

needs to be something there, consider it such a

00:47:53

grid, I don’t know what it won’t say about z local

00:47:58

believed z is not you at

00:48:00

all, I don’t know why we need this z so

00:48:04

at-1 what is it there was such a thing, there was a trade,

00:48:08

we could now rename it, let's have

00:48:15

an effect than the clock where now through and he doesn't

00:48:25

want to,

00:48:40

I'll try now,

00:48:46

in fact, I see that I'm still here in some

00:48:50

places forgot this matter to 151

00:48:54

country line,

00:48:55

so I'll make a replacement for 151 what other

00:48:59

line 162

00:49:05

yes I will make a replacement a.a.

00:49:10

no there's already tarver there it won't work

00:49:15

162 replace t1 with target and do it

00:49:23

globally in every line

00:49:26

so great

00:49:34

little power vemo we're stupid refuse oh

00:49:43

listen forgive me please I he

00:49:48

he didn't open Oleg 8 UAH l I managed to

00:49:53

get into this one in that one which I already

00:49:58

checked, now let’s get in and

00:50:04

see everything has already been fixed, the hardware has already been fixed for me, I apologize,

00:50:07

it’s my

00:50:09

carelessness, I didn’t notice that the file

00:50:12

has changed, the frame does

00:50:16

n’t seem to be needed on the crap screen 1k lord

00:50:29

what I like in cowards

00:50:31

typewriter says an error you have some kind of

00:50:34

spit these are little things, it

00:50:45

seems to me that yes, everything is more or less, but

00:50:48

it’s not like that, and it’s not in order that it’s new target

00:50:51

is called from there, so I’ll try to

00:50:55

remove it and write it here, here’s

00:51:00

the initialization of the new target great wall but it

00:51:07

corresponded, but I what’s the situation for

00:51:10

what and the text I I’ll do this whole thing

00:51:22

after I’ve visualized the creation of

00:51:26

visual objects after I’ve

00:51:27

chosen x y and the radius. By the way, pay

00:51:30

attention here I’m using a

00:51:32

tram assignment, you know why,

00:51:34

but in order to make it

00:51:39

easier to work with this x y here and for me to write

00:51:42

a virgin, that is, I’m doing synonymous with the name x y&r,

00:51:46

respectively, for not glad tardis,

00:51:50

what do I get in one place and there is no

00:51:53

rental sink

00:51:58

if x y parameters started trading should be

00:52:02

born where not in a random position,

00:52:08

let it be and once again I will now connect my

00:52:11

task so that the department, in principle,

00:52:12

starts working when it if we make money, we

00:52:15

will be able to move something further,

00:52:20

even if factoring doesn’t make sense to do it on a

00:52:23

working course, Katya sometimes, I’m now

00:52:26

in a sense doing or

00:52:28

factoring on a non-working one, this is

00:52:30

just such that it’s not possible

00:52:32

to work normally, but why am I forcibly

00:52:42

trying to start it, that’s what he says

00:52:45

the parameter is not data, but let me remove it,

00:52:47

let the target when creating a trade, then it

00:52:50

appears in a random place, it will be

00:52:53

quite logical, well, the contour shift and at

00:53:01

10 the target inject knows the guys trade,

00:53:06

let's see where it is called from here

00:53:09

it is called, remove control shift and at

00:53:18

10 then yes what do you even see, the gun

00:53:24

is growing and some kind of projectile appears, obviously

00:53:27

multi-colored, you see 1 233 something is, the

00:53:31

target is in stock, even

00:53:34

fused together, yes, the very thing they read at

00:53:39

work, yes, this is the direction of the

00:53:42

barrel itself towards the mouse as long as the mouse is

00:53:45

pointing somewhere in a reasonable place and there

00:53:48

is like this problem of division by zero,

00:53:50

but nevertheless it

00:53:53

works globally, then the projectile itself will interfere, it does

00:53:57

n’t fly anywhere well, the football was flying z there was no

00:54:03

need to delete it,

00:54:06

so we need to, I

00:54:10

have this one, we don’t know how to

00:54:13

restart it for some reason it

00:54:15

restarts obviously new game does not

00:54:16

belong to the cycle, but you can clearly

00:54:20

see this while target.

00:54:22

lego bows for being voice shield test

00:54:28

target give something is happening here clearly and

00:54:30

it must be a check of the relationship

00:54:33

must clearly be in time in

00:54:36

time dotsya time

00:54:38

handler here he is being torn out from the same time

00:54:42

handler and at this time finn or in this

00:54:49

function please me I’ll actually be

00:54:52

dealing with the fact that I’ll touch this very

00:54:55

form inbox boobs global variable

00:54:59

then the target should be global,

00:55:03

but where not replace

00:55:21

replace with time handler on foot I want to

00:55:24

restart and I specify it without

00:55:27

parentheses, that is, I pass it as a link to

00:55:30

this function so that they can call well and

00:55:34

750 this is strange the calculation should

00:55:38

happen more often oh 50 microseconds

00:55:48

milliseconds well now the muzzle has stopped

00:55:58

growing the muzzle has stopped growing

00:56:06

target shadow

00:56:14

gun power up and I have some kind of

00:56:18

heyner in general on the mouse

00:56:20

and I time the handler called him at all

00:56:25

didn’t call it time to call ours

00:56:31

so that it works at least once,

00:56:32

after which we can talk about something at all.

00:56:35

Now it’s actually growing in a

00:56:39

good way. Russia needs an event

00:56:42

from the mouse, that is, when it came from the mouse from the

00:56:44

other side and when the mouse has already been pressed for a

00:56:47

new event at this doesn’t happen, but

00:56:49

I need a time cut-off here, it

00:56:52

was actually somehow implemented, I

00:56:55

remembered the moment of clicking the mouse,

00:56:58

the moment of releasing the mouse, and accordingly,

00:57:01

you can now shift escape to minimize the

00:57:08

lower cat fire, but

00:57:17

finally I don’t remember listen, what a tough

00:57:25

f2 what is in 2 we cosine and sine of the angle

00:57:35

you were able to win them from it, but is it necessary to use this

00:57:46

horn,

00:57:50

you know, look,

00:57:53

let’s say it even seems to work, but I

00:57:58

don’t understand how it’s very difficult for me to

00:58:01

exploit the fact that I don’t know

00:58:04

how it works, but yes, but the point is that a

00:58:12

I don’t have a clearly defined task right now,

00:58:16

what exactly should I do, I’m

00:58:19

trying to fix something right now, frantically,

00:58:22

by the way, so

00:58:23

that it’s less frantic, this time

00:58:26

the program is launched, it

00:58:28

can, in principle, be launched, you can try to

00:58:32

fix specific things, that is, for

00:58:34

example, so that the ball flies now it

00:58:37

doesn’t flies, so what do I need to

00:58:40

find out how it’s still an error crashes there at the end and

00:58:46

run periodically a movie where obviously

00:58:49

I should have this tank for

00:58:52

which hangs on time

00:58:54

what

00:58:59

forbo

00:59:00

husband bane bulls listen again this kind of

00:59:04

[ __ ] is not good before the floor should be so

00:59:18

okay

00:59:19

furball inbox bulbule hit test old

00:59:23

pull the ball checks whether

00:59:26

it has collided brackets accepts the target and the

00:59:29

target itself is basically alive in this case life

00:59:33

and and we turn 0 and bidding hit you

00:59:41

why is there a binding

00:59:47

you destroyed the target oh there confit

00:59:58

[music]

01:00:05

when maybe the theme of war needs to be returned

01:00:08

here

01:00:21

now a good solution is not born,

01:00:31

let’s let them fly for what is

01:00:33

happening to you here here nested

01:00:36

loops are moving accordingly while there is

01:00:42

while there is and now he has a

01:00:45

ball to 1 to wave ator no and so he doesn’t

01:00:51

wash until salmov exists, he’s twitching,

01:00:56

which means apparently the whole problem is that

01:00:58

he had a husband, all sorts of [ __ ], well, of course, here it is,

01:01:02

it’s [ __ ] fix me describes

01:01:06

moving the sword in one frame redrawing

01:01:08

we can steal this thing became the ball to

01:01:10

which we actually did and what is

01:01:12

missing is missing apparently he you x and

01:01:15

you y see they are zero are set

01:01:18

well when the ball appears it should

01:01:21

appear in what place the layer needs to be

01:01:26

transferred actually some initial

01:01:28

you x and y for not lysing that’s if I

01:01:37

really want to give

01:01:38

it out in general, 4450 is actually quite

01:01:41

strange, some default values

01:01:45

where the trick is that it should

01:01:51

appear from the barrel of a gun,

01:01:55

let's buy an analyte now and

01:01:58

stick it in so that it appears at the

01:02:00

tip of the gun barrel,

01:02:01

but first of all, now even if I

01:02:04

register to him you have their traces here under the

01:02:07

default value 0 and

01:02:08

here go and this shouldn’t

01:02:12

really happen

01:02:23

what are they being issued from there I need to

01:02:28

transfer them from there I need to go where the

01:02:32

gun class is located

01:02:34

here from the gun class and in the gun class when

01:02:37

we fire a shot with a sword,

01:02:40

actually here, here’s a lucky break and I’ll be honest,

01:02:46

look, this is what f2 he

01:02:52

f2 he is such a flag he marks the

01:02:58

pressed button so that when the

01:03:01

button is pressed, he doesn’t know that it was pressing and

01:03:04

accumulating some variable there,

01:03:06

apparently

01:03:17

in short fair to and do he should that new

01:03:22

was you x nor was looking out let's see

01:03:24

what he's doing

01:03:25

sat down in . 2 of 2 power so multiply by the

01:03:31

cosine with l n and n this is probably

01:03:35

anvil obviously before n this is engl let’s

01:03:40

rename it and so I’m getting confused in

01:03:44

this so new you were their set they

01:04:01

but here’s what else is the trick look yes I

01:04:06

immediately them I’m registering

01:04:09

in general, I’m trying to change them from here because

01:04:13

they are not in order, they must be registered, these

01:04:16

same x and y must be registered

01:04:18

inside the class constructor, that is,

01:04:21

here, when I create a new ball,

01:04:24

I must already tell it that x xor y

01:04:30

and the radius in fact these too. r is also

01:04:33

written plus is equal to the general plus and it’s

01:04:38

strange again, so

01:04:45

now I’ll figure it out

01:04:56

in short, I’ll put it here underscores and

01:04:59

there will be a local variable which I’m

01:05:01

now creating a ball not Ebola,

01:05:06

here I’ll create it so I’ll give it to him

01:05:11

accordingly whom

01:05:13

xan and bitterly vyksa

01:05:17

you and bitterly drying let me I’ll call vyksa

01:05:23

y here locally and this is vx

01:05:34

again for the bolt knew bull p

01:05:44

I also wasn’t deleted here

01:05:54

oh

01:06:00

so very good so eng I’m counting

01:06:04

yes it will be luck and the moment of the end of

01:06:07

pressing the button now I think it should be

01:06:18

calculated by the angle and

01:06:21

radius of this very thing Pushkin water

01:06:24

muzzle creed line ah di yes go stores this

01:06:32

very live aid he config so targeting

01:06:38

this function that is triggered by

01:06:39

aiming at mouse movement is hung

01:06:42

the ranking aiming

01:06:46

so and look, yes this is it. 24 this is

01:06:53

the location of the cannon by the way, you also

01:06:56

see that the cannon is hard-coded always

01:06:58

in these coordinates, this is bad, it should

01:07:01

be able to, well, let these constants

01:07:03

be named by them and let them lie

01:07:05

right in my class itself, even if as

01:07:08

properties of the class, but in any case not like

01:07:11

that so now let’s figure out that

01:07:17

we have this one here, one two, these are the

01:07:22

coordinates I need, I take

01:07:25

these two lines and drag them fair and i x y,

01:07:34

here I’ll write something like this, yes this is x,

01:07:46

click ah fur coat, not

01:07:56

so much yet ok, so x y I have now

01:08:02

registered the center of the tip of the muzzle, here is the tip of the

01:08:05

muzzle that I should fly, the

01:08:07

projectile will be so engl and here it

01:08:10

is calculated yes this tunngle is

01:08:18

interesting

01:08:24

sex y these x y should

01:08:32

actually be sat down. xlv. y this is exactly

01:08:36

the location of this

01:08:39

gun itself, the centers

01:08:41

and it doesn’t have them, these are the numbers

01:08:52

before they exist just like that,

01:09:03

we fix it, we insert that, well, let’s do it the

01:09:06

old fashioned way until it breaks 20 by

01:09:09

X 450 by Y where else is that

01:09:12

hardcoat I’m still I don’t know, but it’s a mess

01:09:16

in a good way, we need to remove it, so what’s

01:09:19

interesting is the second one, and this is the second piece,

01:09:27

x and y sat down, and this is the second chamber, the starting

01:09:33

position is the position of the gun until the mouse arrives,

01:09:38

since I’m starting this thing, control

01:09:41

shift of 10, I’m learning

01:09:47

oh-oh-oh what's the matter

01:09:53

canvas creed oval says I can't tables

01:09:58

in who do I need the pool army or something

01:10:02

tapu

01:10:03

how so electron is not taboo

01:10:07

x to pull the pool intex I have tapu

01:10:15

how so my bulldozer is being created at the

01:10:23

moment when they began to create a new ball

01:10:25

I, as a CSO, had a line thrown here

01:10:35

so hide, obviously it was done by the gun

01:10:41

at the moment the shot ended, so it

01:10:45

makes ball

01:10:46

x y in x and y and x are two, sorry

01:10:55

guys, you see, at the end there is a

01:11:00

syntax error oh, I accidentally

01:11:03

closed it, not very scary, but stop andron,

01:11:19

come on, well, and the komono appears at the tip of the muzzle, it’s

01:11:24

true that this is a

01:11:28

serial advantage, the same garbage

01:11:30

remains to tell him the speed

01:11:33

now, I don’t have the

01:11:35

correct speed yet, so we find

01:11:38

the speed at the moment of this fire 2 yes you

01:11:44

x and y as they are I think yes,

01:11:49

I see the second chip, yes, here it is in your mouth

01:11:53

and you are here in x and y, let's

01:11:57

see, to start debugging printing,

01:12:00

let's print them, and what kind of speed is

01:12:04

there, in principle, forgive again, closed it's

01:12:10

fun, since the machine came out as an ulcer in May

01:12:18

let's now it will generate on the radio and

01:12:22

print the speed to its 36 29 look at the

01:12:32

ball you ball set forth moss seems to be

01:12:39

there, it seems like there is a movie and let's

01:12:42

see if it is called or not, that

01:12:46

is, in my main loop where I have

01:12:49

this time hander

01:12:59

exactly - of course, redrawing it is one

01:13:03

thing, changing the coordinates is another thing,

01:13:06

let’s counter if I don’t don’t want okay hunger,

01:13:11

this very declaration resource is in this in

01:13:22

this batch, let’s redraw it

01:13:28

to 3, touched something, there was something for

01:13:32

this,

01:13:38

what’s it called?

01:13:45

cord sense,

01:13:47

exactly yes, I can just sit down

01:13:52

the mesh ort to do really yes,

01:14:02

come on dear,

01:14:05

which one is even too well flying

01:14:13

through yes well global they are flying globally they are

01:14:16

already flying

01:14:17

okay I see that now we won’t

01:14:23

be able to do anything significant for

01:14:25

let me at least send this it's a

01:14:27

commit thing, let's look at the noise we

01:14:31

made in the end, I'll git div look at how

01:14:36

many lines I have globally

01:14:38

changed, I'm not happy with what has

01:14:41

happened so far I don't like it and the

01:14:50

balls are flying, that's good, they don't fly in the

01:14:54

first stages of gravity we

01:14:58

looked here, here is the obfuscated

01:15:00

version, they don’t reflect from the walls,

01:15:03

they don’t hit the target, I don’t get

01:15:08

the experience, it’s not reflected anywhere how many

01:15:11

balls I shot down or how much they cost,

01:15:14

my balls fly perfectly, but these goals

01:15:19

should be generated new ones, and it

01:15:24

would be nice to have goals so that they move, so that they

01:15:26

fly, ideally, so that they also

01:15:29

collide according to the law of conservation of

01:15:31

momentum in the background, let’s say

01:15:33

they have the same mass, an absolutely elastic

01:15:35

collision in which they will

01:15:37

exchange speeds, but it

01:15:39

will be cool, in fact, it’s not so

01:15:44

difficult to add it’s not so it’s difficult to

01:15:47

write, but the point is that now

01:15:52

maybe I should really

01:15:53

start, I wanted it to be like yours

01:15:56

in the same conditions, to pee in order to find

01:16:04

fault with the code before understanding the essence,

01:16:08

this is an important part of the work, to be able to

01:16:11

understand the essence of the program code

01:16:13

is considered figure it out, fix it,

01:16:18

understandably, tinker with this matter to

01:16:23

force it

01:16:24

so that the target or waist up,

01:16:27

respectively, there

01:16:29

must be some kind of servicing function

01:16:31

now there is this function time handler

01:16:35

up in which all the complexity is hidden,

01:16:38

listen and well, let it even be hidden in it,

01:16:40

it’s okay, you

01:16:44

clean code, write documentation for

01:16:46

each method, what it does, what

01:16:49

task it has, and all the legacy so-

01:16:51

called old code that is outdated

01:16:55

is better to just throw it out, that is, if

01:16:58

something is not working, something that is

01:17:01

not used, but it’s lying around,

01:17:04

it’s better to just delete it so that it doesn’t just

01:17:07

lie around like that, now I

01:17:09

just wrote this as a toy that fell apart,

01:17:12

oh, where is this approach going to end up here,

01:17:15

yes, I was fixing it like this,

01:17:17

tell me, but I’m wondering, you’ve

01:17:20

already been tinkering with this code

01:17:22

correctly

01:17:23

until what stage you got there and everything is

01:17:28

flying out of gravity, reflected from the walls

01:17:31

and the goal is amazed to do what is normal,

01:17:46

well, cool, cool, this is very good, it means

01:17:51

you are ahead of me, how much time did it

01:17:54

take you to do this, and again in

01:18:10

different ways up to 2 pairs 2 hours three,

01:18:18

well, what can I say, you have a fresh

01:18:21

brain, so it’s good that you

01:18:24

are coping more or less wisely, everything is fine, and

01:18:26

what else I want to say now is the

01:18:36

project, I should have

01:18:39

calculated it in advance so that it would be easier to navigate in

01:18:42

it so that I could spend less time, but

01:18:44

these are the memories with on the other hand,

01:18:46

this is picking, this is

01:18:49

nitpicking, and my well, who is this anyway,

01:18:52

what is this attribute, this is important

01:18:54

to understand, because otherwise these

01:18:57

stupid names

01:18:58

they don’t etch out, you will think

01:19:00

the spirit is why not naming what not to name t1

01:19:04

a.n .

01:19:05

something about nothing at all, f2 power of

01:19:09

2, it’s absolutely terrible, it’s impossible to

01:19:12

write like that, the way it’s

01:19:14

organized now, I still really don’t

01:19:16

like the code, the explicitness of such a smell

01:19:19

needs to be highlighted and isolated from, and it’s

01:19:22

unreadable in many places,

01:19:24

having no I completely understand the network, I

01:19:27

don’t have a clue about how

01:19:29

the mode is switched, pressed the

01:19:31

mouse, released the mouse, again I don’t

01:19:34

like it yet, how I did it, it

01:19:38

needs to be isolated, makes it more readable,

01:19:41

okay, look, I’m finished with this

01:19:46

matter now, in any case, I’ll do it commit

01:19:51

your task will be to

01:19:55

do a good modular refactoring, that is, to

01:20:00

tear off the physics of the ongoing process, the

01:20:03

physics class associated, for example, with

01:20:08

targets or with targets and a ball, and even

01:20:14

tear off the gun into a separate module,

01:20:18

but as for tkinter,

01:20:22

let you separate these things into a separate module there will be a

01:20:27

model a little independently of

01:20:30

the display so that the

01:20:34

class score is not responsible for its display

01:20:37

so that it is not his responsibility to

01:20:39

pull the colors so that he knows about the

01:20:43

canvas in general so that he does not know anything

01:20:46

essentially about the volume of the canvas, well,

01:20:49

let him have a tabula identifier there or

01:20:51

stored in yeah, but

01:20:54

somehow get this thing out, think

01:20:58

maybe some other way will come up with how to

01:21:00

divide it into a module, and in fact,

01:21:04

this is the idea of

01:21:05

separating the model from the display, that is, there’s

01:21:10

also a controller on

01:21:12

model-view-controller, this is one of such

01:21:14

fundamental things that allow you to

01:21:16

separate the complexity

01:21:17

of why because very often

01:21:20

the display can be different, that is,

01:21:27

you can display this way or that way, you

01:21:30

can complicate this display as

01:21:32

if it’s getting closer, moving away, and whether

01:21:35

you have a field on which all this flies, like in the

01:21:37

game worms, it’s more than the screen and you can go back and

01:21:40

forth to look at what’s happening, it’s

01:21:44

clear at gunpoint just to

01:21:47

get closer and move away, that’s why, in

01:21:50

principle, this is the idea of the gap between

01:21:52

the display and the model, it’s very expensive, the

01:21:55

transition of coordinates is also now there is

01:21:57

absolutely no one killed, I haven’t touched the

01:22:00

coordinate seeds, okay, let’s forget it for

01:22:03

clarity, let’s do it commit for today we

01:22:05

finish with you thank you for your attention

01:22:07

and see you next time

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