Gravity for game not working

[Jacob_McBride2]

Here is the editor and this is what the game looks like from the only current planets ground:

I want to have a dynamic player impelemnted to the game, and give it the tags “111” so the script will then get the player entity then pull the player towards the planet with a feild of gravity but the current script is not functional even when I disabled gravity. The script SHOULD get the entity with the tag “111” and pull it to the planet. Here is the current script:

var GravityScript = pc.createScript('gravityScript');

GravityScript.attributes.add('pullForce', { type: 'number', default: 5 }); // Adjust the pullForce value as needed

// Called every frame
GravityScript.prototype.update = function(dt) {
    var entities = this.app.root.findByTag('111');

    for (var i = 0; i < entities.length; i++) {
        var entity = entities[i];
        var direction = this.entity.getPosition().clone().sub(entity.getPosition()).normalize();
        var force = direction.scale(this.pullForce * dt);

        entity.rigidbody.applyForce(force);
    }
};

If anyone knows what’s wrong please let me know!

[Leonidas]

Hi @Jacob_McBride2,

Your Box entity that has this script attached has a Static rigidbody. You will need to set it to dynamic to be able to apply forces/impulses and changes in its velocity.

[Jacob_McBride2]

except the entity with the script should be still, and the other entity should be pulled by the entity with the script.

[Leonidas]

Try doing a forum search, there have been some posts on the subject, for example:

Gravity Force on Spherical Surface

Hi Everyone, I’m new in PlayCanvas and I’m looking for some guidance in how to approach the following challenge: I’m moving a car along a spherical surface using the Keyboard Arrows, but I’m having trouble to keep the Car/entity “stick” to the ground . The Gravity from the general settings is 0 and I’m using this code to force the “Car” stay on the surface, but at some point the rotation gets crazy, this.planet = this.app.root.findByName("FakePlanet"); var gravity = new pc.Vec3(); gravity = t…

[Jacob_McBride2]

I’ve seen that one but it did not help. I just need the dynamic entity pulled to the static entity.

[Leonidas]

There isn’t an API to do that, so you will need to implement it in code e.g. using some of the ideas shared in that post.

[Jacob_McBride2]

Nah I fixed it just now. All I had to do was make the planet stop rotating so I could get a good view of what happens, then I gave the planet gravity, and now the planet has gravity.

[Jacob_McBride2]

However it does have a weird effect at the bottom of the planet, the boxes orbit under the plaet strangly, this is not what I need. i need gravity pulling from all sides to the ground.