Enemy phasing through everything and black rectangle appears randomly [Solved]

[_Forix]

Godot Version

Godot 4.2.2

Question

I recently started learning how to make games and I choose my first engine to be Godot. So I picked this tutorial by Brackeys (https://www.youtube.com/watch?v=LOhfqjmasi0) Everything was going great until I started learning to make enemy’s.

First of all when I try to make the enemy move left and right it just goes through the whole map. Lastly sometimes I see a tiny black rectangle appear on top of my enemy for a frame and then disappears.(It also appears when I’m viewing the game scene without actually running the game but the black rectangle doesn’t appear often compared to when I run the game)
I’ve been trying to fix this problem for a while but I honestly have no idea what I’m doing wrong. Any help would be really appreciated, thank you😊

I was going to add a video showing the problem but I can’t since the Godot forums say I’m new user, but you can still view the video through this drive link —> (Help me – Google Drive)

You can also view the project if the video didn’t provide enough detail.

[herrspaten]

EDIT: Second answer is important

Im not sure about the black bar that appears, but regarding the enemy phasing through the walls: If you want your enemy to collide with walls, it has to be a physicsbody aka a “CharacterBody2D”. But you do the collision-testing with raycasts i guess → you have to make sure the raycast collision_mask has the same layers set as the object its supposed to detect (i assume thats the area2Ds in your level-scene)

[herrspaten]

I could tell from the video that you mixed up your left/right raycasts. You have to switch the names of the raycasts then the collision should work

[_Forix]

You’re right! the raycasts were mixed but it still didn’t seem to fix the collision issue

[_Forix]

I just tried making my enemy a characterbody2d but strangely it still continued to phase through everything. I also tried making the layer of my enemy have the same layer as my player and titlemap, I now could collide with the enemy but it was still phasing through my map

[herrspaten]

Can you tell me what the collisionlayer and the collisionmask of your tilemap is?

[_Forix]

both the collision layer and collision mask of my tilemap are 1 and 4

[herrspaten]

And the collisionmask of the raycast is also set to 1 and/or 4?

[_Forix]

yh it is

[herrspaten]

In your green_slime.gd script you have to use the direction in your movement-method:

position.x += SPEED * delta * direction

[_Forix]

Thank you so much!!, you fix the problem I forgot to add the direction variable to the movement method😓

[_Forix]

Turns out that black bar I was talking about was because I didn’t size the sprite sheet correctly. I fixed the problem by adjusting the offset when loading in the frames of my enemy. Got the answer from here (https://www.reddit.com/r/godot/comments/1cmd4vn/weird_black_line_showing_up_when_jumping/)