Artificial Intelligence like zombie

[rakesh]

Hello,

I just want to create a zombie which follows the player.

I have seen the tutorials of unity 3d but failed to convert it into BABYLON JS form.( I don't know the how to convert Quaterian.LookRotation in unity 3d can be used in babylon js)

Can someone please give me an idea how to achieve this.

[Temechon]

It's typescript but it work : 

    private _update() {
        // get the direction vector toward the player
        var colliderPosition = this._game.player.position;
        var dir = colliderPosition.subtract(this.position);
        dir.normalize();
        dir.y = 0;
        // get the next position of the zombie
        var dest = dir.scale(0.015).scale(this.speed*2);
        // the zombie is a mesh
        this.look(this._game.player.position);
        this.moveWithCollisions(dest); // or zombie.position.addInPlace(dest)
    }


     /** Make this mesh look at the given position (only along the y axis) */
     public look (pos) {
        var dv = pos.subtract(this.position);
        var yaw = -Math.atan2(dv.z, dv.x) - Math.PI / 2;
        this.rotationQuaternion = BABYLON.Quaternion.RotationYawPitchRoll(yaw, 0, 0);
    }

my 'update' function is called with scene.registerBeforeRender(update);

FYI, the whole source code is here: https://github.com/Temechon/infection, and the project is currently abandoned.