How count last position?

Questions & Answers
1

Need to count last mouse position, how to do it?

Tile.cs
using UnityEngine;
using System.Collections;

public class Tile : MonoBehaviour {

	public Texture[] texture;//laikinai
	public Material mat; //laikinai

	public Vector3 gridPosition = Vector3.zero;
	public Vector3 lastGridPosition = Vector3.zero;


	
	void Start () {
		mat = renderer.material;
		mat.mainTexture = texture [0];
		
	}
	
	void Update()
	{

	}
	
	void OnMouseEnter() {

		float X1 = gridPosition.x;
		float Y1 = gridPosition.y;

		float X2 = lastGridPosition.x;
		float Y2 = lastGridPosition.y;



		//Cia kad judetu ne istrizai
		if (X1*X1 > Y1*Y1){
			new Vector2 (X1,0);
		} else {
			new Vector2 (0,Y1);
		}

		//Debug.Log("my position is " + gridPosition.x + "," + gridPosition.z);

		//Cia kad sektu peles bisena lentoj
		GameManager.instance.moveCurrentPlayer(this);

		//nereikia
		lastGridPosition.x = gridPosition.x + transform.position.y;
		lastGridPosition.y = gridPosition.y + transform.position.z;

		if (X1<X2 && Y1==Y2){
			mat.mainTexture = texture [1];
		}else if(X1>X2 && Y1==Y2){
			mat.mainTexture = texture [2];
		}else if(X1==X2 && Y1<Y2){
			mat.mainTexture = texture [3];
		}else if(X1==X2 && Y1>Y2){
			mat.mainTexture = texture [4];
		}

		//Debug.Log("my position was " + lastGridPosition.x + "," +lastGridPosition.y);

		//Debug.Log("Transform position" + transform.position.x + "," + transform.position.y + "," + transform.position.z);

		Debug.Log("X And Y " + X1+ ","+ X2+ "," +Y1+ "," +Y2);

	}
	
	void OnMouseExit() {
	}
	

	void OnMouseDown() {

	}

}

GameManager.cs

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

public class GameManager : MonoBehaviour {
	public static GameManager instance;
	
	public GameObject TilePrefab;
	public GameObject UserPlayerPrefab;
	
	public int mapLength = 9;
	public int mapHeigth = 7;
	
	List <List<Tile>> map = new List<List<Tile>>();
	List <Player> players = new List<Player>();
	int currentPlayerIndex = 0;
	
	void Awake() {
		instance = this;
	}
	
	// Use this for initialization
	void Start () {		
		generateMap();
		generatePlayers();
	}
	
	// Update is called once per frame
	void Update () {
		
		players[currentPlayerIndex].TurnUpdate();
	}
	
	public void nextTurn() {
		if (currentPlayerIndex + 1 < players.Count) {
			currentPlayerIndex++;
		} else {
			currentPlayerIndex = 0;
		}
	}
	
	public void moveCurrentPlayer(Tile destTile) {
		players[currentPlayerIndex].moveDestination = destTile.transform.position + 0.95f * Vector3.up;
	}
	
	void generateMap() {
		map = new List<List<Tile>>();
		for (int i = 0; i < mapLength; i++) {
			List <Tile> row = new List<Tile>();
			for (int j = 0; j < mapHeigth; j++) {
				Tile tile = ((GameObject)Instantiate(TilePrefab, new Vector3(i - Mathf.Floor(mapLength/2),0, -j + Mathf.Floor(mapHeigth/2)), Quaternion.Euler(new Vector3(0,180,0)))).GetComponent<Tile>();
				tile.gridPosition = new Vector3(i,0,j);
				tile.lastGridPosition = new Vector3 (i,0,j);
				row.Add (tile);
			}
			map.Add(row);
		}
	}
	
	void generatePlayers() {
		UserPlayer player;
		
		player = ((GameObject)Instantiate(UserPlayerPrefab, new Vector3(0 - Mathf.Floor(mapLength/2),0.95f, -0 + Mathf.Floor(mapHeigth/2)), Quaternion.Euler(new Vector3(0,180,0)))).GetComponent<UserPlayer>();
	players.Add(player);
//		
//		player = ((GameObject)Instantiate(UserPlayerPrefab, new Vector3((mapLength-1) - Mathf.Floor(mapLength/2),1.5f, -(mapHeigth-1) + Mathf.Floor(mapHeigth/2)), Quaternion.Euler(new Vector3(0,180,0)))).GetComponent<UserPlayer>();
//		
//		players.Add(player);
//		
//		player = ((GameObject)Instantiate(UserPlayerPrefab, new Vector3(4 - Mathf.Floor(mapLength/2),1.5f, -4 + Mathf.Floor(mapHeigth/2)), Quaternion.Euler(new Vector3(0,180,0)))).GetComponent<UserPlayer>();
//		
//		players.Add(player);

//		AIPlayer aiplayer = ((GameObject)Instantiate(AIPlayerPrefab, new Vector3(6 - Mathf.Floor(mapSize/2),1.5f, -4 + Mathf.Floor(mapSize/2)), Quaternion.Euler(new Vector3()))).GetComponent<AIPlayer>();
//
//		players.Add(aiplayer);
	}
	
}
2

you can know your previous position if you create a variable that your stock position before moving your example:

public Vector2 previousPosition;
public Vector2 nextPosition;

void Start(){
previousPosition= Input.mousePosition;
}

void Update(){
if ( previousPosition != Input.mousePosition){
nextPosition = Input.mousePosition;
}

// you can do this for the start but after that you can do something like that :

if ( nextPosition!=Input.mousePosition){
previousPosition = nextPosition;
}
}

I hope it will give you an idea to find your solution