1

Here’s my code. Never did I command it to not animate, let alone stop allowing me to move left and right completely, when holding W and S. I can, however, hold A and D and move up and down…

UPDATE
It doesn’t even recognize when I’m pressing A or D under said circumstances.

using UnityEngine;
using System.Collections;

public class PlayerController : MonoBehaviour {

	public float Speed;
	public Animator AnimatorGet;
	private bool Up;
	private bool Left;
	private bool Down;
	private bool Right;
	private bool UpDown;
	private bool LeftRight;

	void FixedUpdate () {
		// Movement Controls and Animation Initiation
		if (Input.GetKey (KeyCode.W))
		{
			transform.position += Vector3.up * Speed * Time.deltaTime;
			Up = true;
		}
		else
		{
			Up = false;
		}
		if (Input.GetKey (KeyCode.A))
		{ 
			transform.position += Vector3.left * Speed * Time.deltaTime;
			Left = true;
		}
		else
		{
			Left = false;
		}
		if (Input.GetKey (KeyCode.S))
		{
			Down = true;
			transform.position += Vector3.down * Speed * Time.deltaTime;
		}
		else
		{
			Down = false;
		}
		if (Input.GetKey (KeyCode.D))
		{
			Right = true;	
			transform.position += Vector3.right * Speed * Time.deltaTime;
		}
		else
		{
			Right = false;
		}
2

You might experience a phenomenom called “ghosting” (http://www.microsoft.com/appliedsciences/antighostingexplained.mspx ). it means some keyboards cant recognize more than 2 keys pressed. most computers will greet you with a warning sound when ghosting occurs. if i press w and s and then d i get a beep.

you might add some debug output to output the values your input gives you (some Debug.Log("w: … which then outputs “w:true s:true a:false d:false” so you can make sure that the key isnt registered (oh i just saw you already checked and a and d are not recognized)

also use the normal update for input handling unity game engine - Is it really wrong to use Input.GetKey() on FixedUpdate? - Stack Overflow

3

That’s an awful lot of redundant if’s.

It’s really hard to figure out what EXACTLY you want to do by looking at code that doesn’t do that. But I tried to guess…

Here’s your code simplified

    public float Speed;
	public Animator AnimatorGet;
	private bool Up;
	private bool Left;
	private bool Down;
	private bool Right;
	private bool UpDown;
	private bool LeftRight;
	
	void FixedUpdate () {
		Up 	= Input.GetKey(KeyCode.W);
		Left 	= Input.GetKey(KeyCode.A);
		Down 	= Input.GetKey(KeyCode.S);
		Right 	= Input.GetKey(KeyCode.D);

		bool isWalking = false;
		if (Up != Down) // if only up or down is pressed...
		{
                    // ...we know we are walking
			isWalking = true;
			if (Up) // up
			{
				transform.position += Vector3.up * Speed * Time.deltaTime;
			}
			else if (Down) // or down
			{
				transform.position += Vector3.down * Speed * Time.deltaTime;
			}
		}
		if (Left != Right) // same with left & right
		{
			isWalking = true;
			if (Left)
			{ 
				transform.position += Vector3.left * Speed * Time.deltaTime;
			}
			else if (Right)
			{
				transform.position += Vector3.right * Speed * Time.deltaTime;
			}
		}
		AnimatorGet.SetBool ("Is Walking", isWalking);

		bool anyUp = Input.GetKeyUp(KeyCode.W) || Input.GetKeyUp(KeyCode.A) || Input.GetKeyUp(KeyCode.S) || Input.GetKeyUp(KeyCode.D);
		bool anyDown = Input.GetKeyDown(KeyCode.W) || Input.GetKeyDown(KeyCode.A) || Input.GetKeyDown(KeyCode.S) || Input.GetKeyDown(KeyCode.D);

		if (anyUp || anyDown) // if any movement key was released or pressed...
		{
                    // ...change direction to current movement direction
			if (Up != Down)
			{
				if (Up)
				{
					AnimatorGet.SetInteger ("Direction", 1);
				}
				else if (Down)
				{
					AnimatorGet.SetInteger ("Direction", 3);
				}
			}
                    // no diagonal directions. 
                    // If we move Up and Left, direction is "4" because this Left/Right if is after Up/Down if                           			
			if (Left != Right)
			{
				if (Left)
				{ 
					AnimatorGet.SetInteger ("Direction", 4);
				}
				else if (Right)
				{
					AnimatorGet.SetInteger ("Direction", 2);
				}
			}
		}
	}