Question How can I stop the player at specific position after jump ?

Hi,
This is an endless runner script. I am using character controller. My player default "y axis" position is 3 (He will be floating without any support). But after Jumping he will go below the "y axis" position 3 .

I want the player "y axis" position to be in position 3 after jumping.

Someone please help me with this script. How to stop the player "y axis" position at 3 after jumping.

Code (CSharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5.  
6. public class myplayer : MonoBehaviour
7. {
8.  
9.     private const float LaneDistance = 2f;
10.     private CharacterController controller;
11.     private float jumpforce = 7f;
12.     private float speed = 18f;
13.     private float verticalvelocity = 0f;
14.     public float gravity = 12f;
15.     public int desiredLane = 1;
16.     public int verticalLane = 1;
17.     private Animator anim;
18.     bool jumped;
19.     // Start is called before the first frame update
20.     void Start()
21.     {
22.         controller = GetComponent<CharacterController>();
23.         anim = GetComponent<Animator>();
24.         jumped = false;
25.     }
26.  
27.     // Update is called once per frame
28.     void Update()
29.     {
30.  
31.  
32.         if (MobileInput.Instance.SwipeLeft)
33.         {
34.             MoveLane(false);
35.             anim.SetTrigger("moveleft");
36.  
37.         }
38.         if (MobileInput.Instance.SwipeRight)
39.         {
40.             MoveLane(true);
41.             anim.SetTrigger("moveright");
42.  
43.  
44.         }
45.  
46.         Vector3 targetPosition = transform.position.z * Vector3.forward;
47.  
48.         if (desiredLane == 0)
49.         {
50.             targetPosition += Vector3.left * LaneDistance;
51.             print("des0");
52.         }
53.         else if (desiredLane == 2)
54.         {
55.             targetPosition += Vector3.right * LaneDistance;
56.             print("des2");
57.         }
58.  
59.  
60.         if (transform.position.y == 3)
61.         {
62.             verticalvelocity = 0f;
63.             if (MobileInput.Instance.SwipeUp)
64.             {
65.                 //jump code
66.                 jumped = true;
67.                 verticalvelocity = jumpforce;
68.             }
69.  
70.         }
71.         else
72.         {
73.             //I tried to stop the player at position 3. But he stops at 2.9 or 2.5 some values below 3
74.             if (transform.position.y > 3 && jumped)
75.             {
76.  
77.                 verticalvelocity -= (gravity * Time.deltaTime);
78.             }
79.             else
80.             {
81.                 verticalvelocity = 0;
82.             }
83.            
84.         }
85.  
86.  
87.         Vector3 movevector = Vector3.zero;
88.         movevector.x = (targetPosition.x - transform.position.x) * speed;
89.         movevector.y = verticalvelocity;
90.         movevector.z = speed;
91.         controller.Move(movevector * Time.deltaTime);
92.  
93.     }
94.  
95.  
96.     private void MoveLane(bool goright)
97.     {
98.  
99.  
100.         if (!goright)
101.         {
102.             desiredLane--;
103.  
104.             if (desiredLane == -1)
105.             {
106.                 desiredLane = 0;
107.             }
108.         }
109.         else
110.         {
111.             desiredLane++;
112.  
113.             if (desiredLane == 3)
114.             {
115.                 desiredLane = 2;
116.             }
117.         }
118.     }
119. }
120.  
121.  

 

usualy you have an terrain with a collider , also the player,

with that you shouldnt go under your terrain

 

I have downjump also, So cannot add terrain there.
If we swipe down , the player will reach the ground and he should be back in position 3 of y axis.

 

You can still use a collider on an invisible game object that acts as your ground

 

I have downjump. If there is a collider then I cannot go down when I swipe down.

if (MobileInput.Instance.SwipeDown)
{
jumpeddown = true;
verticalvelocity = -jumpforce;
// anim.SetTrigger("Jump");
}