Cancel a transform.translate in progress?

Questions & Answers
1

using UnityEngine;
using System.Collections;

public class Movement : MonoBehaviour
{
	//NEXT TO DO!  Make movement immediately change directions/stop with user commands, not keep going for a bit THEN change
	
	public float walkSpeed = 3.5f;
	public bool moving = true;
	public bool snapToGrid = false;
	public float offset = 0.5f;
	public char lastDirection = 'n';
	
	//these 3 used for positioning back onto the grid
	float x;
	float y;
	float z;
	
	// Use this for initialization
	void Start ()
	{
	}
	
	// Update is called once per frame
	void Update ()
	{
		if(Input.GetAxis("Vertical") > 0.0) //w
		{
			if(lastDirection == 'a' || lastDirection == 's' || lastDirection == 'd')
				reset();
			lastDirection = 'w';
			transform.rotation = new Quaternion(0,0,0,0);
			if(moving)
				transform.Translate(0,0,walkSpeed * Time.deltaTime);
			animation.CrossFade ("run");
		}
		else if(Input.GetAxis("Vertical") < 0.0) //s
		{
			if(lastDirection == 'w' || lastDirection == 'a' || lastDirection == 'd')
				reset();
			lastDirection = 's';
			transform.rotation = new Quaternion(0,1,0,0);
			if(moving)
				transform.Translate(0,0,walkSpeed * Time.deltaTime);
			animation.CrossFade ("run");
		}
		else if(Input.GetAxis("Horizontal") > 0.0) //d
		{
			if(lastDirection == 'w' || lastDirection == 'a' || lastDirection == 's')
				reset();
			lastDirection = 'd';
			transform.rotation = new Quaternion(0,1,0,1);
			if(moving)
				transform.Translate(0,0,walkSpeed * Time.deltaTime);
			animation.CrossFade ("run");
		}
		else if(Input.GetAxis("Horizontal") < 0.0) //a
		{
			if(lastDirection == 'w' || lastDirection == 's' || lastDirection == 'd')
				reset();
			lastDirection = 'a';
			transform.rotation = new Quaternion(0,-1,0,1);
			if(moving)
				transform.Translate(0,0,walkSpeed * Time.deltaTime);
			animation.CrossFade ("run");
		}
		else
		{
			reset();
		}
	}
	
	void reset()
	{
		transform.Translate(0,0,0);
		animation.CrossFade ("idle");
		
		//put character back onto the grid -- have to do - as well as + because + doesn't work correctly when the position value is negative
		if((int) transform.position.x >= 0)
		{
			x = transform.position.x - 0.5f; //this way instead of 10.1 -> 10 and 10.6 -> 11, all 10 values will go to 10, because 10.1 -> 9.6 -> 10, 10.6 -> 10.1 -> 10
			x = Mathf.RoundToInt(x) + offset;
		}
		else
		{
			x = transform.position.x + 0.5f;
			x = Mathf.RoundToInt(x) - offset;
		}
		
		if((int) transform.position.z >= 0)
		{
			z = transform.position.z - 0.5f;
			z = Mathf.RoundToInt(z) + offset;
		}
		else
		{
			z = transform.position.z + 0.5f;
			z = Mathf.RoundToInt(z) - offset;
		}
		
		y = transform.position.y;
		
		transform.position = new Vector3(x,y,z);
	}
	
	void OnCollisionEnter(Collision col)
	{
		if(col.gameObject.tag == "Wall")
			moving = false;
	}
	
	void OnCollisionExit(Collision col)
	{
		if(col.gameObject.tag == "Wall")
			moving = true;
	}
}

Right now I have a “game” with a top-down view of a box and a character running in it. What I’m TRYING to do is keep the character on a grid, which is why whenever he stops running I round his position ont he x-z plane to n.5 (so 10.2 goes to 10.5, 9.8 goes to 9.5, etc).
However I’m running into a problem: Whenever i try to change directions immediately, rather than go one direction, wait… then go another direction, it won’t immediately change. Instead it keeps running for a little bit, THEN changes. So how can I stop the movement in mid-movement? I tried to “overwrite” it with the (0,0,0) line at the top of Reset, but that didn’t help

Thanks for any/all help!

2

GetAxis has a built-in slowdown. It’s a special feature meant to look like a real guy reversing direction or stopping. It also ramps up the value – if you lean on W, getAxis Vert goes from 0 to 1 over a few frames, then gradually drops to 0 when you let go.

You can change the speeds with the Input Manager settings (there’s a “snap reverse direction” toggle, which maybe is off for you?)

But, if you never want that at all, just read the keys directly: if(Input.GetKey("w"))...

Also, FYI, Translate takes the amount to move. So Translate(0,0,0) does nothing. It adds (0,0,0) to where you are.