using UnityEngine; using System.Collections; using System.Collections.Generic; namespace CommandPattern { public class InputHandler : MonoBehaviour { //The box we control with keys public Transform boxTrans; //The different keys we need private Command buttonW, buttonS, buttonA, buttonD, buttonB, buttonZ, buttonR; //Stores all commands for replay and undo public static List<Command> oldCommands = new List<Command>(); //Box start position to know where replay begins private Vector3 boxStartPos; //To reset the coroutine private Coroutine replayCoroutine; //If we should start the replay public static bool shouldStartReplay; //So we cant press keys while replaying private bool isReplaying; void Start() { //Bind keys with commands buttonB = new DoNothing(); buttonW = new MoveForward(); buttonS = new MoveReverse(); buttonA = new MoveLeft(); buttonD = new MoveRight(); buttonZ = new UndoCommand(); buttonR = new ReplayCommand(); boxStartPos = boxTrans.position; } void Update() { if (!isReplaying) { HandleInput(); } StartReplay(); } //Check if we press a key, if so do what the key is binded to public void HandleInput() { if (Input.GetKeyDown(KeyCode.A)) { buttonA.Execute(boxTrans, buttonA); } else if (Input.GetKeyDown(KeyCode.B)) { buttonB.Execute(boxTrans, buttonB); } else if (Input.GetKeyDown(KeyCode.D)) { buttonD.Execute(boxTrans, buttonD); } else if (Input.GetKeyDown(KeyCode.R)) { buttonR.Execute(boxTrans, buttonZ); } else if (Input.GetKeyDown(KeyCode.S)) { buttonS.Execute(boxTrans, buttonS); } else if (Input.GetKeyDown(KeyCode.W)) { buttonW.Execute(boxTrans, buttonW); } else if (Input.GetKeyDown(KeyCode.Z)) { buttonZ.Execute(boxTrans, buttonZ); } } //Checks if we should start the replay void StartReplay() { if (shouldStartReplay && oldCommands.Count > 0) { shouldStartReplay = false; //Stop the coroutine so it starts from the beginning if (replayCoroutine != null) { StopCoroutine(replayCoroutine); } //Start the replay replayCoroutine = StartCoroutine(ReplayCommands(boxTrans)); } } //The replay coroutine IEnumerator ReplayCommands(Transform boxTrans) { //So we can't move the box with keys while replaying isReplaying = true; //Move the box to the start position boxTrans.position = boxStartPos; for (int i = 0; i < oldCommands.Count; i++) { //Move the box with the current command oldCommands[i].Move(boxTrans); yield return new WaitForSeconds(0.3f); } //We can move the box again isReplaying = false; } } }