[SOLVED] Vehicle Physics - Detect head touches to the ground?

Help & Support
1

Hello,
How i can detect Head touches to the ground?
image

I added spear model and collision on hitHead
image

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But CarPhysics have compound collision where it turn every child’s collision into rigidbody. So as you can see the hitHead entity also linked with it.

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I just simply want to check spear touches to the ground…
How i can do this?

Thanks

2

I would use a trigger volume to represent the head.

1 Like
3

@yaustar Do you mean this?
https://developer.playcanvas.com/en/user-manual/physics/trigger-volumes/

I try this but it does not work

// init...
this.headPartEntity.collision.on('triggerenter', this.onCollisionHeadStart, this);

// call...
VehicleControls.prototype.onCollisionHeadStart = function () {
    
    console.log("headshot");
    
};

===============

And according to doc…

Do not add a rigidbody component to your trigger volume entity.

So I think of this…

What you say? :thinking:
Any other way to solve it?

4

You add another entity that is a child of the vehicle for the trigger to represent the head.

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5

Do you mean this?

Please correct me if i am not getting… :roll_eyes:

Edit:
@yaustar I am sorry but i think i didn’t get it…

Please anyone can help? anyone?

6

Hello @Ketan_ATA! What is your result so far?

1 Like
7

Hello @Albertos, Glad you asked… :slightly_smiling_face:

After some experiments, As i come to know that there is no direct solution for this question…
So jumped out of box…

I mean this way
image

I placed hitHead (collision - triggerenter) outside of CarPhysics.

In update i did this…

this.hitHeadEntity.setPosition(this.headEntity.getPosition());

image
So problem is solved… :slight_smile:

Thanks for help @yaustar, @Albertos

8

Great! I also learned something, because to understand your problem I had to delve into the ‘compound collision type’. Thanks.

1 Like