HitBox doesnt seem to update after setSize()

[NikRetaNCAM]

(ik that offset is wrong)

the player (this gets called in player script) is 32x32 but does not actually take that whole space, so it would be reasonable to change the hitbox, but it doesnt seem to work

[Geokureli]

can you be specific about what is happening vs what you're expecting to happen? setSize sets width and height, which affects the hitbox but doesn't change the graphic, offset moves the graphic in relation to the hitbox

[NikRetaNCAM]

what im expecting to happen is hitbox to become smaller so player wont float when visually they dont touch the ground and they'll be able to squeeze in spaces they should be able to, but cant cuz hitBox size is too big.
what is happening that nothing changes. like at all

[Geokureli]

My guess is, the hitbox is changing but it seems like your expecting some visual change to coincide with changing the hitbox when that is not the case. Either that or something is setting the hitbox after you call setSize, for instance calling loadGraphic will set the sprites width and height to the graphics size.

If you build in debug there's ways to verify the actual size of the hitbox. by pressing the ~ key you can bring up the debug menu which has a way to show hitboxes, and watched variables.

to showhitboxes press this button in the top-right corner

To watch the sprite's hitbox vars:

FlxG.watch.add(mySprite, "width");
FlxG.watch.add(mySprite, "height");

you can also add trace(width, height); calls to see if anything is actually changing and being reverted later

[Naruto0]

Hi, I have a similar issue.
I fully disclose I am currently doing the Tutorial: 6 Loading The Tile Map and the problem is step 10.

The tutorial suggests the setSize should shrink to collisionBox 8 pixels, and offset.set(4, 4) shoul shift the start of the collisionBox.

 public function new(x:Float  = 0, y:Float = 0)
    {
        super(x,y);

		drag.x = drag.y = 800;

		setSize(4, 4);
		offset.set(4, 4);

I added

FlxG.watch.add(player, "width");
FlxG.watch.add(player, "width");

And the screen looks like.

That suggest setSize does not have any effect while offset apparently does.

my current haxelib setup is:

actuate: [1.9.0]
box2d: [1.2.3]
flixel-addons: [3.2.1]
flixel-demos: [3.1.0]
flixel-templates: [2.6.6]
flixel-tools: [1.5.1]
flixel-ui: [2.5.0]
flixel: [5.6.2]
format: 3.5.0 [3.7.0]
hashlink: [0.1.0]
haxelib: 3.3.0 [4.1.0]
heaps: 1.9.1 [2.0.0]
hldx: 1.10.0 [1.14.0]
hlopenal: [1.5.0]
hlsdl: 1.10.0 [1.14.0]
hscript: [2.5.0]
hxcpp: [4.3.2]
layout: [1.2.1]
lime-samples: [7.0.0]
lime: [8.1.1]
openfl-samples: [8.7.0]
openfl: [9.3.2]
systools: [1.1.0]

[Naruto0]

I',m on Ubuntu, see below

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 22.04.4 LTS
Release:        22.04
Codename:       jammy

[moxie-coder]

you need to do updateHitbox(); after

[moxie-coder]

what im expecting to happen is hitbox to become smaller so player wont float when visually they dont touch the ground and they'll be able to squeeze in spaces they should be able to, but cant cuz hitBox size is too big. what is happening that nothing changes. like at all

you also need to do updateHitbox();

[Naruto0]

So from what I have investigated, somehow it does not work in public function new

I moved setSize and offset.set to PlayState.placeEntities under player.setPosition

class PlayState extends FlxState
{
	var player:Player;
	var map:FlxOgmo3Loader;
	var walls:FlxTilemap;

	function placeEntities(entity:EntityData)
	{
		if (entity.name == "player")
		{
			player.setPosition(entity.x, entity.y);
			player.setSize(8, 8);
			player.offset.set(4, 4);
		}
	}
...

And suddenly it works. It has to have something to do with how haxe initializes class and what not, but I'm not sure, what I'm doing there.
I'm satisfied with this dirty workaround as of now but hope will figure it out.

[Geokureli]

@Naruto0 Note that calling loadGraphic will set the width and height to the size of the loaded graphic, it looks like you're calling loadGraphic after setSize, where the tutorial does the opposite, I believe

[Naruto0]

That is 100% correct.

Then, in the constructor, after you call makeGraphic(), we need to add some drag:

makeGraphic() is later replaced by loadGraphic(AssetPaths.player__png, true, 16,16);

So I mixed it up. Thank you!