gistfile1.cs

using UnityEngine;
using System;
using System.Collections;

public class MoveToAttackCommand : ICommand {
  	
	public GameObject target;
	
	public MoveToAttackCommand(GameObject target) {
		this.target = target;
	}
	
	public IEnumerator ExecuteOn(GameObject actor) {
		UnitProperties unit = actor.GetComponent<UnitProperties>();
		if (unit == null) {
			throw(new Exception("Can't execute on object without UnitProperties"));
		}
		
		actor.animation.Play("run");
		
		while (Vector3.Distance(actor.transform.position, target.transform.position) > unit.attackRange) {
			Vector3 moveTowardPos = Vector3.MoveTowards(actor.transform.position,
										 		        target.transform.position,
													    unit.moveSpeed * Time.deltaTime);
			actor.transform.position = moveTowardPos;
			
			Quaternion direction = Quaternion.LookRotation(
									   Vector3.RotateTowards(actor.transform.forward,
					 				   						 target.transform.position - actor.transform.position,
										  					 unit.rotationSpeed * Time.deltaTime,
										  					 0.0f));
			actor.transform.rotation = direction;
			
			yield return null;
		}
		
		actor.animation.Play("attack");
		
		yield return new WaitForSeconds(unit.attackStartDelay);
		
		target.animation.Play("gethit");
		
		
		yield break;
	}
}