#pick up / push mechanics for 3d character body

42 messages · Page 1 of 1 (latest)

brave geode
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i want to make it so my 3d character body can pick up / push rigid bodys like whats in the game "portal"

urban jasper
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I got push mechanics working (but a little janky) using an Area3D that's this wide circle around the bean and this script which finds all the bodies the Area is colliding with, then checks if it is a RigidBody3D, then applies a force in the direction between the player and the body. I have an export called PUSH_FORCE that controls how strong of a force to apply (I have it set to 0.2)

func _push_objects():
    var bodies = $Pusher.get_overlapping_bodies()
    for body in $Pusher.get_overlapping_bodies():
        if body is RigidBody3D:
            var force: Vector3 = -PUSH_FORCE * (position - body.position).normalized() * min(1.0, velocity.length())
            body.apply_force(force)
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I don't know about grabbing but I could try to put something together

brave geode
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bump

brave geode
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@urban jasper i have somehow found this and it pushes it but its very very glitchy but it does move it

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urban jasper
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I tried that, but I found my code to work better 🤷

brave geode
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idk

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im guessing that wont work

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brave geode
urban jasper
brave geode
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no

urban jasper
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Try replacing line 82 with c.apply_force(force). The force is being applied to the thing you're trying to push, not to the character (which $"." is referencing)

brave geode
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it doesnt crash but it doesnt push it

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urban jasper
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Why are you using $"."?

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Try replacing it with c

brave geode
urban jasper
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Can you send the complete code?

brave geode
brave geode
urban jasper
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Oh I see, so basically for my project I had an Area3D called "Pusher" with a hitbox that extended around the player and so the bodies that got the force applied to them were the ones colliding with the Pusher Area3D

brave geode
urban jasper
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This is my player nodetree

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This circle around the player is the pusher's hitbox

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brave geode
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i know im trying to do it without using the area3d

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thats why im using

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so if i collide into a rigidbody3d

urban jasper
brave geode
urban jasper
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body is one of the nodes the Area3D is colliding with

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You can get rid of the bodies variable declaration, I accidentally left it in there

brave geode
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i have it very slightly working but no clue what i did

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@urban jasper i have some how made it chuck itself

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ahhh its checking for a slide count right?

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so it will only push it if i move side to side

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so close

brave geode
urban jasper
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Why doesn't it work?

brave geode
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does not push it

urban jasper
# brave geode

The collisionshape has a warning, can you tell me what it is please?

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brave geode
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to be honest ive just gave up doing it way because i would say it isnt the best way to do it and i cant seem to get to correct