Magnet script for UNITY 3D

问题:

I'm working on a Google Cardboard project, right now i have a demo for Android where u can look around in a special scene i build in UNITY 3D, everything is working fine & looking good, but what I really want is:

I want to walk forward when I press the Google Cardboard magnet button.

I found a few script's on the web, but I do not know exactly how to make these scripts work in my UNITY project.

Can anybody help me further with this?

回答1:

Assuming you are able to read the magnet input correctly. This is how I did an FPS style controller script:

1. In Unity5 import the asset package Standard Assets/Characters.
2. Create an instance of RigidBodyFPSController.prefab from that package.
3. Remove it's child object, "MainCamera"
4. Import the Google cardboard unitypackage.
5. Replace the "MainCamera" you removed in step #3 with CardboardMain.prefab
6. Update or modify a copy of RigidbodyFirstPersonController.cs GetInput() method.

GetInput() with Google Cardboard forward movement fallback:

private Vector2 GetInput()
{
    Vector2 input = new Vector2
    {
        x = Input.GetAxis("Horizontal"),
        y = Input.GetAxis("Vertical")
    };

    // If GetAxis are empty, try alternate input methods.
    if (Math.Abs(input.x) + Math.Abs(input.y) < 2 * float.Epsilon)
    {
        if (IsMoving) //IsMoving is the flag for forward movement. This is the bool that would be toggled by a click of the Google cardboard magnet
        {
            input = new Vector2(0, 1); // go straight forward by setting positive Vertical
        }
    }
    movementSettings.UpdateDesiredTargetSpeed(input);
    return input;
}

Google's SDK only support's detecting a magnet "click". If you want to hold down the magnet to move forward, I recommend using Cardboard Controls+ from the Unity3D Asset Store.