ComboText.cs

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class ComboText : MonoBehaviour {

	public static List<ComboEntry> Entries = new List<ComboEntry>();
	public float Speed = 10;
	public static float Offset = 90;
	
	public static void AddEntry(int Number, Vector2 ScreenPos)
	{
		Entries.Add(new ComboEntry(Number, ScreenPos));
	}
	
	public static void AddEntry(int Number, Transform Target)
	{
		Vector2 Pos = Camera.main.WorldToScreenPoint(Target.position);
		AddEntry(Number, new Vector2(Pos.x, Screen.height - Pos.y));
	}
	
	void Start () 
	{
		
	}
	
	void Update () 
	{
		List<ComboEntry> EntriesToDelete = new List<ComboEntry>();
		
		foreach(ComboEntry C in Entries)
		{
			C.Lifetime -= Time.deltaTime;
			C.ScreenPos = Vector2.Lerp(C.ScreenPos, C.EndPos, Time.deltaTime * Speed);
			//C.ScreenPos = new Vector2(C.ScreenPos.x, C.ScreenPos.y - (Time.deltaTime * Speed));
			
			if(C.Lifetime < 0f)
			{
				EntriesToDelete.Add (C);
			}
		}
		
		foreach(ComboEntry C in EntriesToDelete)
		{
			Entries.Remove(C);
			//C = null;
		}
	}
	
	void OnGUI()
	{
		foreach(ComboEntry C in Entries)
		{
			GUI.Label(new Rect(C.ScreenPos.x, C.ScreenPos.y, 50, 50), C.Number + "");
		}
	}
}

public class ComboEntry
{
	public int Number;
	public float Lifetime;
	public Vector2 ScreenPos;
	public Vector2 EndPos;
	
	public ComboEntry(int _Number, Vector2 _ScreenPos, float _Lifetime = 1f)
	{
		Number = _Number;
		ScreenPos = _ScreenPos;
		EndPos = new Vector2(_ScreenPos.x, _ScreenPos.y - ComboText.Offset);
		Lifetime = _Lifetime;
	}
}