My player falls only once and translateLocal is with delay

[smokys]

1. As you can see on the photo my player never fall down(He has rigidbody and collider component), he only falls when i set his starting position above the architecture at the very beginning, but the he is not falling at all… also when i put him above the water he falls right on the water.

2. My translateLocal has delay like 2-3 seconds till it istart working, then working fine, but when i turn off collider component it works right away.(ofc i dont want to remove my collider cause i need it

Here is a link for my game : https://playcanvas.com/editor/scene/1025730

Thanks for the answers…

[DevilZ]

Hey @smokys,

Just had a look. Main issue here is you cannot use translate and rotate for dynamic rigidbodies; you will have to move them using the Physics engine, i.e using Forces and Impulses. Take a look at https://developer.playcanvas.com/en/tutorials/Using-forces-on-rigid-bodies/ for more information.

Hope this helps!

[smokys]

@DevilZ thanks, now it is working properly, but when i use force or impulse and i release running button my player keeps moving even though im not giving more impulses or force. i tried to set linearVelocity to 0 but it didnt help.

[DevilZ]

So detect was Released on the keyboard. Once the key is released, then set linear and angular velocity to pc.Vec3.ZERO, and not the number.

[smokys]

Still no success

are these lines good?

this.entity.rigidbody.linearVelocity.set(pc.Vec3.ZERO);
this.entity.rigidbody.angularVelocity.set(pc.Vec3.ZERO);

I used wasReleased function

[DevilZ]

You’ve got the idea, but I’m not sure if set is a keyword to be used here. You would want to do
this.entity.rigidbody.linearVelocity = pc.Vec3.ZERO, and same for angularVelocity as well.

[smokys]

Thanks for that it works now i have learnt something… the last thing, while holding run button, players speed is exponentionaly growing, should i set max linear velocity while running?

[DevilZ]

Yes, that should work.

[smokys]

The thing is thath linear velocity looks like this while moving Vec3
{x: 0.00017046311404556036, y: 0.0006771385669708252, z: 0.00018634350271895528}

[smokys]

How should code looks like when i want to change for example Z axis?

edit: as i have noticed Z axis is exponentionaly increasing so i want to set Z axis only

[DevilZ]

So you would get the currentX and currentY values, and set linearVelocity equal to something like new pc.Vec3 (currentX, currentY, whatever value of Z).

[smokys]

console log says: this.entity.rigidbody.linearVelocity is not a function

there is somewhere certain reason why it doesnt take as a function

[DevilZ]

Is this the exact dump from the console, or did you miss the t while copying it? If it is the exact dump, send the code that’s causing the issue.

[smokys]

I missed the T

[smokys]

Summary

var PlayerMovement = pc.createScript('plyerMovement');

//Rychlost behu hraca
var playerSpeed = 10;
var playerMaxVelocitySpeed = 2;
 

PlayerMovement.states = {
    //nacitanie stavu animacii
    idle : {
        animation: 'standing.glb'
    },
    
    running : {
        
        animation: 'running.glb'
    },
    
    dance : {
        
        animation: 'dance.glb'
    },
    
    falling : {
        
        animation: 'falling.glb'
    }
    
};

// initialize code called once per entity
PlayerMovement.prototype.initialize = function() {
    //rychlost prechodu animacie
    this.blendTime = 0.2;
    //nastavenie stavu 'necinny'
    this.setState('idle');
    
    
};

// update code called every frame
PlayerMovement.prototype.update = function(dt) {
    
    var currentX = this.entity.rigidbody.linearVelocity.x;
    var currentY = this.entity.rigidbody.linearVelocity.y;
    console.log(this.entity.rigidbody.linearVelocity);
    
    //Ovladanie hraca
    if(this.app.keyboard.wasPressed(pc.KEY_UP)){
        
        this.setState('running');
    }
    if(this.app.keyboard.isPressed(pc.KEY_UP)){
        this.entity.rigidbody.applyImpulse(0, 0,playerSpeed*dt);
        this.entity.rigidbody.linearVelocity(new pc.Vec3(currentX,currentY, playerMaxVelocitySpeed));
    }
    
    if(this.app.keyboard.wasReleased(pc.KEY_UP)){
        this.entity.rigidbody.linearVelocity = pc.Vec3.ZERO;
        this.entity.rigidbody.angularVelocity = pc.Vec3.ZERO;
        this.setState('idle');
    }
};

//vytvorenie funkcie setState pre ulahcenie nastavenia animacii v kode
PlayerMovement.prototype.setState = function(state){
  
    var states = PlayerMovement.states;
    
    this.state = state;
    
    this.entity.animation.play(states[state].animation, this.blendTime);
    
    
    
};

// swap method called for script hot-reloading
// inherit your script state here
// PlyerMovement.prototype.swap = function(old) { };

// to learn more about script anatomy, please read:
// http://developer.playcanvas.com/en/user-manual/scripting/

[DevilZ]

Ah, the screenshot has loaded now. What you are doing is trying to call the LinearVelocity as a function, which won’t work. In my previous post, I had said equate it to the new pc.Vec3, which means you use the equals to sign to assign the vector.

EDIT - I can’t see you declare and/or set the currentX and currentY values anywhere?

[smokys]

Those are the first lines in update function it is working now finally, thanks you did a good help

[smokys]

But there must be something wrong with currentx/y

are u able to play? try to get yourself on platform

https://launch.playcanvas.com/1025730?debug=true

edit: maybe not wrong with the code but i should be still getting impulses even when in the air, because once he is falling you cant move forward anymore

edit2: fixed, probably.

Issue 2: if you try to go on a platforms you can see that its like invisible collider in the center and you actually cant get on the other side to the finish

[DevilZ]

Hmm, the second issue shouldn’t be due to the movement script. Will check it out after work.

[DevilZ]

@smokys

Those are the first lines in update function

Ah, I had not seen that, I was on mobile. Sorry for the false alarm.