计时器 unity3d col.gameObject.name

Question

我尝试创建一个计时器，它可以在玩家销毁对象时启动吗？ 我需要，当玩家销毁对象调用 "test" 时，启动一个计时器，玩家速度从 5f 变为 10f 10 秒。当计时器为 10 或更多时，我需要玩家速度回到 5f。

这是我的代码：

using UnityEngine;
using UnityEngine.UI;
using UnitySampleAssets.CrossPlatformInput;

namespace CompleteProject
{
    public class PlayerMovement : MonoBehaviour
    {
        public static float speed = 5f;  
        public float timer = 5.0f;
        float timerMin = 1.0f;

        Vector3 movement;                   // The vector to store the direction of the player's movement.
        Animator anim;                      // Reference to the animator component.
        Rigidbody playerRigidbody;          // Reference to the player's rigidbody.
        #if !MOBILE_INPUT
        int floorMask;                      // A layer mask so that a ray can be cast just at gameobjects on the floor layer.
        float camRayLength = 100f;          // The length of the ray from the camera into the scene.
        #endif




        void Awake ()
        {
            #if !MOBILE_INPUT
            // Create a layer mask for the floor layer.
            floorMask = LayerMask.GetMask ("Floor");
            #endif

            // Set up references.
            anim = GetComponent <Animator> ();
            playerRigidbody = GetComponent <Rigidbody> ();

        }



        void FixedUpdate ()
        {

            timer += Time.deltaTime;
            // Store the input axes.
            float h = CrossPlatformInputManager.GetAxisRaw("Horizontal");
            float v = CrossPlatformInputManager.GetAxisRaw("Vertical");

            // Move the player around the scene.
            Move (h, v);

            // Turn the player to face the mouse cursor.
            Turning ();

            // Animate the player.
            Animating (h, v);

        }


        void Move (float h, float v)
        {
            // Set the movement vector based on the axis input.
            movement.Set (h, 0f, v);

            // Normalise the movement vector and make it proportional to the speed per second.
            movement = movement.normalized * speed * Time.deltaTime;

            // Move the player to it's current position plus the movement.
            playerRigidbody.MovePosition (transform.position + movement);


        }



        void Update () 
        { 
            if(Input.GetKeyUp(KeyCode.Space))
            { 

            } 
        }




        void OnCollisionEnter (Collision col)
        {


            if(col.gameObject.name == "coin10")
            {
                Destroy(col.gameObject);
                CoinManager.coin=CoinManager.coin+10;

            }
            if(col.gameObject.name == "coin5")
            {
                Destroy(col.gameObject);
                CoinManager.coin=CoinManager.coin+5;

            }
            if(col.gameObject.name == "coin1")
            {
                Destroy(col.gameObject);
                CoinManager.coin=CoinManager.coin+1;

            }
            if(col.gameObject.name == "eterium1")
            {
                Destroy(col.gameObject);
                EteriumManager.eterium=EteriumManager.eterium+1;

            }
            if(col.gameObject.name == "test")
            {

            }

        }

        void Turning ()
        {
            #if !MOBILE_INPUT
            // Create a ray from the mouse cursor on screen in the direction of the camera.
            Ray camRay = Camera.main.ScreenPointToRay (Input.mousePosition);

            // Create a RaycastHit variable to store information about what was hit by the ray.
            RaycastHit floorHit;

            // Perform the raycast and if it hits something on the floor layer...
            if(Physics.Raycast (camRay, out floorHit, camRayLength, floorMask))
            {
                // Create a vector from the player to the point on the floor the raycast from the mouse hit.
                Vector3 playerToMouse = floorHit.point - transform.position;

                // Ensure the vector is entirely along the floor plane.
                playerToMouse.y = 0f;

                // Create a quaternion (rotation) based on looking down the vector from the player to the mouse.
                Quaternion newRotatation = Quaternion.LookRotation (playerToMouse);

                // Set the player's rotation to this new rotation.
                playerRigidbody.MoveRotation (newRotatation);
            }
            #else

            Vector3 turnDir = new Vector3(CrossPlatformInputManager.GetAxisRaw("Mouse X") , 0f , CrossPlatformInputManager.GetAxisRaw("Mouse Y"));

            if (turnDir != Vector3.zero)
            {
                // Create a vector from the player to the point on the floor the raycast from the mouse hit.
                Vector3 playerToMouse = (transform.position + turnDir) - transform.position;

                // Ensure the vector is entirely along the floor plane.
                playerToMouse.y = 0f;

                // Create a quaternion (rotation) based on looking down the vector from the player to the mouse.
                Quaternion newRotatation = Quaternion.LookRotation(playerToMouse);

                // Set the player's rotation to this new rotation.
                playerRigidbody.MoveRotation(newRotatation);
            }
            #endif
        }


        void Animating (float h, float v)
        {
            // Create a boolean that is true if either of the input axes is non-zero.
            bool walking = h != 0f || v != 0f;

            // Tell the animator whether or not the player is walking.
            anim.SetBool ("IsWalking", walking);
        }
    }
}

这是我需要启动计时器的部分：

if(col.gameObject.name == "test")
        {

        }

我尝试使用定时器 -= time.deltatime 但 time.deltatime 不是定时器。计时器的值是对象销毁的值。 大家可以帮我做这个定时器吗？

示例：

if(timer<=10){
speed=10f;
}
else
{
speed=5f;
}

Answer 1

使用 Coroutine.

1. 启动协程。
2. 更改player_speed。
3. 等你的时间。
4. 重置速度。

---

if(col.gameObject.name == "test")
{
    StartCoroutine("SlowSpeed");
}

private IEnumerator SlowSpeed()
{
    player_speed = 10;

    yield return new WaitForSeconds(10f);

    player_speed = 5;
}