我试图让用户输入使用相同的输入键执行两种不同的行为。
像这样： if (Input.GetKeyDown(KeyCode.D) || Input.GetKey(KeyCode.D))
制作俄罗斯方块游戏：目标是，轻敲“D”一次，我希望tetromino每次移动一个世界单位。并且当按住相同的键“D”时，我希望块连续向右移动直到它到达游戏板的边缘，而不必点击。
这种方法适用于上面的代码但是，我遇到的问题是点击一次移动2或3个世界单位而不是一次，因为在团结意识到我按住键之前没有延迟。
我希望Unity在激活“Input.GetKey（KeyCode.D）”之前等待.5秒，以便我可以保持行为“Input.GetKeyDown（KeyCode.D）”
底线，
我该怎么做？
Tetromino.cs的完整代码：
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Tetromino : MonoBehaviour {
//#####################################################################################################
//#####################################################################################################
float fallTimer = 0f; // timer counting the seconds to check if mino needs to fall
public float fallSpeed = 1f; // variable to determine how fast the mino needs to fall
public bool allowRotation = true;
public bool limitRotation = false;
//#####################################################################################################
//#####################################################################################################
// Use this for initialization
void Start () {
}
//#####################################################################################################
//#####################################################################################################
// Update is called once per frame
void Update ()
{
CheckUserInput(); // --------------------------- // Checks the user input every frames
FallBehavior(); // checks if the block needs to fall and increments the timer
}
//#####################################################################################################
//#####################################################################################################
void CheckUserInput()
{
if (Input.GetKeyDown(KeyCode.D)) // moves the mino to the right
{
transform.position += new Vector3(1,0,0);
if (CheckIsValidPosition()) // if minos is not in a valid position, the transform pushes the minos
{ // back to the left, to keep it inside the grid
}
else
{
transform.position += new Vector3(-1, 0, 0); // this counters the first attempt to move
}
}
else if (Input.GetKeyDown(KeyCode.A)) // moves the mino to the left
{
transform.position += new Vector3(-1, 0, 0);
if (CheckIsValidPosition())
{
}
else
{
transform.position += new Vector3(1, 0, 0);
}
}
else if (Input.GetKeyDown(KeyCode.W)) // rotates the mino
{
if (allowRotation)
{
if (limitRotation) //limited rotation ON, to prevent rotating outside the grid
{ // after the tetromino landed at the bottom
if (transform.rotation.eulerAngles.z >= 90)
{
transform.Rotate(0, 0, -90);
}
else
{
transform.Rotate(0, 0, 90);
}
}
else
{
transform.Rotate(0, 0, 90); // 90 degrees rotation on the mino
}
if (CheckIsValidPosition())
{
}
else
{
if (limitRotation)
{
if (transform.rotation.eulerAngles.z >= 90)
{
transform.Rotate(0, 0, -90);
}
else
{
transform.Rotate(0, 0, 90);
}
}
else
{
transform.Rotate(0, 0, -90);
}
}
}
}
else if (Input.GetKeyDown(KeyCode.S))
{
transform.position += new Vector3(0, -1, 0); // makes the mino go down when pressing
if (CheckIsValidPosition())
{
}
else
{
transform.position += new Vector3(0, 1, 0);
}
}
}
//#####################################################################################################
//#####################################################################################################
/// <summary>
/// Makes the block fall by 1 unit and checks how fast it needs to fall
/// </summary>
void FallBehavior()
{
if (Time.time - fallTimer >= fallSpeed) // on the first frame, Time.time = 0 & fallTimer = 0
// so 0 - 0 = 0, is it >= then fallSpeed = 1? no
// so the if statement does not exectute, block dont fall
// after 1 sec, Time.time = 1 & fallTimer = 0
// so 1 - 0 = 1, is it >= then fallSpeed = 1? yes
// so block falls after 1 sec, because we increment it
// in the if statment also
{
transform.position += new Vector3(0, -1, 0); // moves the mino down
fallTimer = Time.time; // Time.time check the time since game started and is assigned
} // to fallTimer so that the timer updates every frame
// when called in the Update method. fallTimer = 0, 1, 2, 3 ...
if (CheckIsValidPosition()) // also helps checking if the Y is invalid, which tells the game to spawn
{ // the next tetromino when Y is less <= to the bottom of the grid
}
else
{
transform.position += new Vector3(0, 1, 0);
enabled = false; // disables the current piece, because it is at the bottom. So that the controls are not still
// attached to the current piece, after the next one spawned
FindObjectOfType<Game>().SpawnNextTetromino(); // spawns the next tetromino after the last one reached the bottom
}
}
//#####################################################################################################
//#####################################################################################################
/// <summary>
/// check the position of the individual tiles of the minos (children of the prefab)
/
/// </summary>
/// <returns></returns>
bool CheckIsValidPosition()
{
foreach (Transform mino in transform)
{
Vector2 pos = FindObjectOfType<Game>().RoundingTheMinoPosition (mino.position);
if (FindObjectOfType<Game>().CheckIsInsideGrid(pos) == false)
{
return false;
}
}
return true;
}
}
Game.cs的完整代码
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Game : MonoBehaviour {
public static int gridWidth = 10; // fixed grid size varibles
public static int gridHeight = 20; // for the blocks to fall in
// the grid need to be in a 2d array and we want to store all the x and y values for each world unit of the grid
// so that we can know which point on the grid are beind occupied by tetrominos that fell in.
//
// the array is gonna store the transforms so we use "gridWidth" and "gridHeight" to define the size of the array.
public static Transform[,] grid = new Transform[gridWidth, gridHeight];
// Use this for initialization
void Start () {
SpawnNextTetromino(); // spawns the first tetromino in the game
}
// Update is called once per frame
void Update () {
}
public void SpawnNextTetromino() // the Resources folder is included when the game compiles, we placed our prefabs
{ // in "Assets\Resources\Prefabs" to allow instantiation in the code.
// we cast a gameobject -> "(GameObject)" to let "Instantiate" know what we want to instantiate.
GameObject nextTetromino = (GameObject)Instantiate(Resources.Load(GetRandomTetromino(), typeof(GameObject)), new Vector2(5.0f, 20.0f), Quaternion.identity);
}
//gonna pass in the mino position in this method to see
// if it is still in the grid
public bool CheckIsInsideGrid(Vector2 pos)
{
return ((int)pos.x >= 0 && (int)pos.x < gridWidth && (int)pos.y >= 0);
}
public Vector2 RoundingTheMinoPosition(Vector2 pos)
{
return new Vector2(Mathf.Round(pos.x), Mathf.Round(pos.y));
}
/// <summary>
/// Genreates a random int and assings a teromino prefab to the outcome
/// </summary>
/// <returns></returns>
string GetRandomTetromino()
{
int randomTetromino = Random.Range(1, 8); //
string randomTetrominoName = null;
switch (randomTetromino)
{
case 1:
randomTetrominoName = "Prefabs/Tetromino_T";
break;
case 2:
randomTetrominoName = "Prefabs/Tetromino_Long";
break;
case 3:
randomTetrominoName = "Prefabs/Tetromino_Square";
break;
case 4:
randomTetrominoName = "Prefabs/Tetromino_J";
break;
case 5:
randomTetrominoName = "Prefabs/Tetromino_L";
break;
case 6:
randomTetrominoName = "Prefabs/Tetromino_S";
break;
case 7:
randomTetrominoName = "Prefabs/Tetromino_Z";
break;
}
return randomTetrominoName;
}
}
答案 0 :(得分：0)
看起来我误解了原来的问题。您只想按下“D”键，但按住“D”键时移动到达到Edge。按住键时需要一个计时器，这可以通过{{{ 1}}。使用- (UIViewController *)viewController {
for (UIView* next = [self superview]; next; next = next.superview) {
UIResponder *nextResponder = [next nextResponder];
if ([nextResponder isKindOfClass:[UIViewController class]]) {
return (UIViewController *)nextResponder;
}
}
return nil;
}
按住键时检查，如果计时器达到您认为按下的值的数量，那么您就知道按键已被按下。
另外，检查密钥是否随Time.deltaTime一起发布。如果钥匙被释放但是计时器没有达到您认为的值，那么它只是一个按键。值得在协程函数中执行此操作而不是Input.GetKey函数来简化它，并减少执行此操作所需的变量数量。
Input.GetKeyUp(KeyCode.D)