2D游戏知识点二Unity 2D游戏主角基本功能和动画

Posted 2021-10-07 シ゛甜虾

地图添加Tilemap Collider 2D

快速创建主角及动画 

起个名字保存一下 

界面上已经有人物了，点击运行，可以看到idle动画，给人物idle添加Circle Collider 2d和Rigidbody 2D，然后将idle重命名为player,设置Rigidbody 2D的z轴锁定，防止移动时翻跟头

动画拖不进去的解决办法，不知道为什么，教程可以直接拖进去，我的就是不行，应该是没找对方法，可以通过另种方法实现动画制作

拖动所有素材到Hierarchy

起个名字

删掉没有的动画等

修改playerAnimation动画,run后期修改成了runing类型改成float了，方便动画切换

把条件统统设置上去，并且动画切换时间改为0

run->idle

idle->run

jump->idle

idle->jump

run->jump

jump->run

给主角添加脚本

安装屏幕方向组件，assetstore搜索Joystick Pack添加到我的资源，导入到项目

添加Canvas并将Variable joystick拖动给Canvas

调整分辨率和Joystick位置

Cravity Scale重力修改为3方便快速下落

添加一个Background图层

将地图设置到Background图层

将资源幅值给player中的脚本

代码

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

public class PlayerControler : MonoBehaviour
{
    [SerializeField] private Rigidbody2D PlayerRd;
    [SerializeField] private Animator PlayerAnimator;
    public Collider2D PlayerCollider;
    public float Speed;
    public float Jumpforce;
    public LayerMask Ground;
    public VariableJoystick variableJoystick;
    // Start is called before the first frame update
    void Start()
    {
        PlayerRd = GetComponent<Rigidbody2D>();
        PlayerAnimator = GetComponent<Animator>();
    }

    // Update is called once per frame
    void Update()
    {
        Movement();
        SwithcAnim();
    }

    void Movement()
    {
        float horizontalMove = variableJoystick.Horizontal;
        float verticalMove = variableJoystick.Vertical;
        #region 设置

        PlayerRd.velocity = new Vector2(horizontalMove * Speed * Time.deltaTime, PlayerRd.velocity.y);
        PlayerAnimator.SetFloat("runing", Mathf.Abs(PlayerRd.velocity.x));

        //跳跃和落地
        if (verticalMove > 0.5f && ((PlayerCollider.IsTouchingLayers(Ground))))
        {
            PlayerRd.velocity = new Vector2(PlayerRd.velocity.x, Jumpforce);
        }

        if (horizontalMove > 0)
        {
            transform.localScale = new Vector3(1, 1, 1);
        }
        else if (horizontalMove < 0)
        {
            transform.localScale = new Vector3(-1, 1, 1);
        }
        #endregion
    }

    void SwithcAnim()
    {
        if (PlayerCollider.IsTouchingLayers(Ground))
        {
            PlayerAnimator.SetBool("jump", false);
        }
        else if(Mathf.Abs(PlayerRd.velocity.y) > 10)
        {
            PlayerAnimator.SetBool("jump", true);
        }
    }
}

最终效果

有时走动会发现忽快忽慢，是因为碰撞器产生了向上的力后地面的摩擦力就小了，有一种比较简单的解决办法，就是直接改变player的位置，修改后的代码

void Movement()
    {
        float horizontalMove = variableJoystick.Horizontal;
        float verticalMove = variableJoystick.Vertical;
        #region 设置

        PlayerRd.transform.position = new Vector2(horizontalMove * Speed * Time.deltaTime + PlayerRd.transform.position.x, PlayerRd.transform.position.y);
        PlayerAnimator.SetFloat("runing", Mathf.Abs(horizontalMove));

        //跳跃和落地
        if (verticalMove > 0.5f && ((PlayerCollider.IsTouchingLayers(Ground))))
        {
            PlayerRd.velocity = new Vector2(PlayerRd.velocity.x, Jumpforce);
        }

        if (horizontalMove > 0)
        {
            transform.localScale = new Vector3(1, 1, 1);
        }
        else if (horizontalMove < 0)
        {
            transform.localScale = new Vector3(-1, 1, 1);
        }
        #endregion
    }

需要调整一下速度值