[SOLVED] Realistic player movement

Help & Support
,
1

So, I was making a first person movement script, but I have come to a problem. So, I need it to completely stop moving when the key is not pressed. For example when the W key is pressed you move forward, if not then you stop moving, like in normal FPS games. Here is my script if anyone can help me.

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

PlayerMovement.attributes.add('camera', {
    type: 'entity',
    description: 'Optional. Assign a camera entity.'
});

PlayerMovement.attributes.add('power', {
    type: 'number',
    default: 2500,
    description: 'Adjust the speed of the player movement.'
});

PlayerMovement.attributes.add('lookSpeed', {
    type: 'number',
    default: 0.25,
    description: 'Adjusts the camera sensitivity.'
})

// initialize code called once per entity
PlayerMovement.prototype.initialize = function() {
    this.force = new pc.Vec3();
    this.eulers = new pc.Vec3();

    var app = this.app

    app.mouse.on("mousemove", this._onMouseMove, this);

    app.mouse.on("mousedown", function() {
        app.mouse.enablePointerLock();
    }, this)

    if (!this.entity.collision) {
        console.error("Collision componet not found in entity 'Player'")
    }

    if (!this.entity.rigidbody || this.entity.rigidbody.type !== pc.BODYTYPE_DYNAMIC) {
        console.error("Either Rigidbody componet is not found, or the Rigidbody is not correctly configured! It needs to be set to 'Dynamic'")
    }
};

// update code called every frame
PlayerMovement.prototype.update = function(dt) {
    if (!this.camera) {
        this._createCamera();
    }

    var force = this.force;
    var app = this.app;

    var forward = this.camera.forward;
    var right = this.camera.right;
    var up = this.camera.up;

    var x = 0;
    var z = 0;
    var y = 0;

    if (app.keyboard.isPressed(pc.KEY_A)) {
        x -= right.x
        z -= right.z
    }

    if (app.keyboard.isPressed(pc.KEY_D)) {
        x += right.x;
        z += right.z;
    }

    if (app.keyboard.isPressed(pc.KEY_W)) {
        x += forward.x;
        z += forward.z;
    }

    if (app.keyboard.isPressed(pc.KEY_S)) {
        x -= forward.x;
        z -= forward.z;
    }

    if (app.keyboard.isPressed(pc.KEY_SPACE)) {
        var pos = this.entity.getPosition();
        if (pos.y < 2) {
            y += up.y
        }
    }

    if (x !== 0 || z !== 0 || y !== 0) {
        force.set(x, y, z).normalize().scale(this.power);
        this.entity.rigidbody.applyForce(force)
    }

    this.camera.setLocalEulerAngles(this.eulers.y, this.eulers.x, 0);
};

PlayerMovement.prototype._onMouseMove = function (e) {
    if (pc.Mouse.isPointerLocked() || e.buttons[0]) {
        this.eulers.x -= this.lookSpeed * e.dx;
        this.eulers.y -= this.lookSpeed * e.dy;
    }
}

PlayerMovement.prototype._createCamera = function () {
    this.camera = new pc.Entity();
    this.camera.setName("FPC");
    this.entity.addChild(this.camera)
    this.camera.translateLocal(0, 0.5, 0)
}
2

As far I can see the script is already working like that.

3

Sorry, must have explained it wrong. Right now, it feels like you are walking on ice. I don’t want it to act like that.

4

You can try to set the friction of the rigidbody component to 1.

5

I̶t̶ s̶t̶i̶l̶l̶ d̶o̶e̶s̶n̶’t̶ s̶t̶o̶p̶ a̶s̶ f̶a̶s̶t̶ a̶s̶ I̶’d̶ l̶i̶k̶e̶ i̶t̶ t̶o̶o̶. I̶t̶ d̶o̶e̶s̶ s̶t̶o̶p̶ f̶a̶s̶t̶e̶r̶ t̶h̶o̶u̶g̶h̶
Never mind, I just set the linear damping to 0.99

1 Like
6

Have a look at our new FPS template for some inspiration! PlayCanvas 3D HTML5 Game Engine