[Lập Trình Game] Lesson 10: Create In-Game Enemies with Godot - Part 1 - AnonyViet

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.

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And let’s get started.

Creating Enemies in Godot

First we will create a button KinematicBody2D change name to enemy. LIVE enemy > more AnimatedSprite because it is of form 1 and Collision gives it as normal.

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 SpriteFrame new

Create Animation is move

Here is the blurry picture, please re-import it

I have re-imported it and it looks better

Next set collision for it, here I set below not set above so that the upper part can let the character jump up and destroy it.

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

We will create the following variables

const vitri = 1
const chuyendong = vector2
const tocdo = tùy bạn
const trongluc = tùy bạn
const  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 that number and never be able to edit its value.

Physical motion code

Next we will create a physical motion function

And will code like this

Assign change the x-axis = with tocdo * with vitri (* leave positive speed on the right and negative speed on the left)

Call the animation just created above: $AnimatedSprite.play(“tênanmation’)

Assign chuyendong trục y += trongluc

And call the move_and_slide command so that the enemy can move.

And here we will need a function for the enemy to detect the wall and it will move in reverse.

For example: The enemy moves to the wall, then detects that wall and then it will move back. It’s like when you reach the wall, you will simply turn around.

And we will use the if statement to check the wall: if is_on_wall():

inside if wall would be: vitri = vitri * -1

Above you have seen tocdo * vitri then positive speed is on the right and negative speed will be on the left when vitri * with -1 then it will reverse and the enemy will move in reverse when hitting the wall and right again vice versa.

And it was successful, but you notice that our enemy doesn’t change direction but stays in one direction and now we will correct it.

You code like this

if vitri == 1: (vitri = 1 = positive number where positive = move to the right)

$AnimatedSprite.flip_h = false (flip_h is the command used to rotate the sprite to the right or left)

else: (opposite of above)

$AnimatedSprite.flip_h = true (flip_h = false is it won’t rotate will stay the same,true = vice versa)

And it moved backwards

Ok so that’s the end of part 1, creating enemies for the character. Part 2 will help you code the enemy to move back and forth on the map as shown below