[Lập Trình Game] Lesson 10: Creating Enemies in Godot Programming – Part 1

In this article, I will guide you to create enemies for our characters with Godot game programmer. Enemies will cause the character to lose blood or you have to fight the enemy. And this part has some parts that can be very difficult and unsuccessful, so be prepared.

And let’s get started.

Create an enemy

First create a new Sense and include the 2D kinematicbody the child node is AnimatedSprite and CollsionShape2D then press Ctrl + WILL save.

If you are using anonyviet’s assets, there are enemy assets at: asset-player > NPC > enemy assets

Asset download link

You can choose any one.

Create a new SpriteFrame

Creating Animation is a move

If the photo is blurry, you guys Import come back

Next set collision for it, here I set the lower part not the upper one so that the upper part can let the character jump and destroy it

Lock it and create a new script and this script will be named enemy

We will create the following variables

var Vitri = 1
var  vantoc = Vector2.ZERO //hoặc Vector2() đều giống như nhau
var  Tocdo = tùy bạn
var Trongluc = tùy bạn
var  FLOOR = Vector2(0,-1)

here const is the statement used to lock the number, that is, when you declare a variable with const, it will lock the number and never be able to modify its value.

Next we will create a physical motion function

And will code like this

Assign gravity to it

vantoc.y  =  trongluc

Assign speed to it

vantoc.x  += tocdo * delta * vitri (Here * delta to reduce enemy speed)

Add move_and_slide statement to be able to move

vantoc = move_and_slide(vantoc)

Next you will instance it outside of our sence:

And instance it out

Run the game and you will see it move

Here, I set the collection mode to see it, so there’s nothing wrong

Next we will code so it can move left, and animation

And here I will have 1 command is:

if is_on_wall() : is_on_wall() is a statement that returns true if the Body is on the Wall, and it only executes when called with move_and_slide

And next below if is_on_wall() we will add one more line of code:

vitri = vitri * -1 and this line when touching something vitri is 1 then it will * -1 and it will move backwards

Oh and if you run the game and see that the character is running slowly, check if move_and_slide has FLOOR, if not, add it if it is but still slow, adjust the speed to about 20-30

And next we will code the animation for it

if vitri == 1:
$AnimatedSprite.flip_h = false
else:
$AnimatedSprite.flip_h = true

The above 2 lines are the 2 lines that will change the image of the enemy, flip_h = false the picture will flip to the right flip_h = true is to the left

if vitri == 1 : means that the position is equal to 1 but = 1, it will move to the right but our enemy moves to the right first, so flip_h will = false

And vice versa

Then please call animation move for me

$AnimatedSprite.play("Move")

Mine is fine after running the game

And in the next post, I will guide you to create raycast so that the enemy can move on the tilemap as shown below without dropping.