unity 使用CharacterController实现人物模拟力作用的跳跃加移动方案_unity character controller 跳跃

在做人物跳跃功能的时候发现官方的方法在视觉效果上很差，其他一些方案比如加刚体等等都效果不好，于是自己写了一个模拟力作用的跳跃算法。
首先定义了5个全局变量来完成跳跃算法的实现

    public float jumpSpeed = 2;//跳跃速度
    public float gravity = 2;//模拟重力
    public bool isJump = false;//是否在跳跃
    public float jumpTime= 0.5f;//跳跃时间
    public float jumpTimeFlag = 0;//累计跳跃时间用来判断是否结束跳跃
1
2
3
4
5

在Update()方法中实现在按下相应按键的时候改变人物状态

if(Input.GetKey(KeyCode.W)&& Input.GetKeyDown(KeyCode.Space)&& !isJump)
        {
            isJump = true;
            playState = PlayState.Jump;
            characterController.Move(transform.forward * speed*Time.deltaTime);            
        }
        else if (Input.GetKey(KeyCode.W))
        {
            isMoving = true;
            playState = PlayState.Moving;
            characterController.Move(transform.forward * speed * Time.deltaTime);
        }
        else if (Input.GetKeyDown(KeyCode.Space)&&!isJump)
        {
            isJump = true;            
            playState = PlayState.Jump;
        }else
        {
            playState = PlayState.Idle;
            isMoving = false;
        }
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

** 如果在跳跃状态，并且当前时间没有到达跳跃时间，则持续向上移动如果到达跳跃时间，那么持续下降直到遇到地面**

if (isJump)
        {
            if (jumpTimeFlag<jumpTime)
            {
                characterController.Move(transform.up * jumpSpeed*Time.deltaTime);
                jumpTimeFlag += Time.deltaTime;
            }else if(jumpTime < jumpTimeFlag)
            {
                characterController.Move(transform.up * -gravity * Time.deltaTime);
            }
            if(characterController.collisionFlags == CollisionFlags.Below)
            {
                jumpTimeFlag = 0;
                isJump = false;
            }
        }
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

在不是跳跃状态的时候使人物始终接触地面

else
        {
            if (characterController.collisionFlags != CollisionFlags.Below)
                characterController.Move(transform.up * -gravity * Time.deltaTime);
        }
1
2
3
4
5

附完整代码

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

public enum PlayState
{
    Moving,
    Idle,
    Jump
}

public class PlayerMove : MonoBehaviour
{    
    //private PlayerDir dir;
    private CharacterController characterController;

    public float speed = 3;
    public float jumpSpeed = 2;//跳跃速度
    public float gravity = 2;//模拟重力
    public PlayState playState = PlayState.Idle;
    public bool isMoving = false;
    public bool isJump = false;//是否在跳跃
    public float jumpTime= 0.5f;//跳跃时间
    public float jumpTimeFlag = 0;//累计跳跃时间用来判断是否结束跳跃

    private void Start()
    {
        //dir = this.GetComponent<PlayerDir>();
        characterController = this.GetComponent<CharacterController>();
    }
    // Update is called once per frame
    void Update()
    {
        //float distance = Vector3.Distance(dir.GetTargetPosition(),this.transform.position);
        if(Input.GetKey(KeyCode.W)&& Input.GetKeyDown(KeyCode.Space)&& !isJump)
        {
            isJump = true;
            playState = PlayState.Jump;
            characterController.Move(transform.forward * speed*Time.deltaTime);            
        }
        else if (Input.GetKey(KeyCode.W))
        {
            isMoving = true;
            playState = PlayState.Moving;
            characterController.Move(transform.forward * speed * Time.deltaTime);
        }
        else if (Input.GetKeyDown(KeyCode.Space)&&!isJump)
        {
            isJump = true;            
            playState = PlayState.Jump;
        }else
        {
            playState = PlayState.Idle;
            isMoving = false;
        }
        if (isJump)
        {
            if (jumpTimeFlag<jumpTime)
            {
                characterController.Move(transform.up * jumpSpeed*Time.deltaTime);
                jumpTimeFlag += Time.deltaTime;
            }else if(jumpTime < jumpTimeFlag)
            {
                characterController.Move(transform.up * -gravity * Time.deltaTime);
            }
            if(characterController.collisionFlags == CollisionFlags.Below)
            {
                jumpTimeFlag = 0;
                isJump = false;
            }
        }
        else
        {
            if (characterController.collisionFlags != CollisionFlags.Below)
                characterController.Move(transform.up * -gravity * Time.deltaTime);
        }
    }
}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79