Unity 2D 角色控制器

2D Platformer 是一种玩家在平台之间跳跃、避开障碍物、与敌人战斗的游戏，所有这一切都是从 2D 侧视视角观察的。

Sharp Coder 视频播放器

要在 Unity 中制作 2D 平台游戏角色控制器，请按照以下步骤操作。

该控制器将基于物理并使用 Rigidbody2D 组件。

脚步

使用 2D 关卡打开场景（确保关卡精灵附加了 2D 碰撞器，这样玩家就不会掉下来）
创建一个新的 GameObject 并调用它 "Player"
创建另一个 GameObject，将其命名为 "player_sprite" 并向其添加 Sprite Renderer 组件
将您的精灵分配给 "player_sprite" 并将其移动到 "Player" 对象内

创建一个新脚本，将其命名为 "CharacterController2D" 并将以下代码粘贴到其中：

角色控制器2D.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
[RequireComponent(typeof(Rigidbody2D))]
[RequireComponent(typeof(CapsuleCollider2D))]
public class CharacterController2D : MonoBehaviour
    // Move player in 2D space
    public float maxSpeed = 3.4f;
    public float jumpHeight = 6.5f;
    public float gravityScale = 1.5f;
    public Camera mainCamera;
    bool facingRight = true;
    float moveDirection = 0;
    bool isGrounded = false;
    Vector3 cameraPos;
    Rigidbody2D r2d;
    CapsuleCollider2D mainCollider;
    Transform t;
    // Use this for initialization
    void Start()
        t = transform;
        r2d = GetComponent<Rigidbody2D>();
        mainCollider = GetComponent<CapsuleCollider2D>();
        r2d.freezeRotation = true;
        r2d.collisionDetectionMode = CollisionDetectionMode2D.Continuous;
        r2d.gravityScale = gravityScale;
        facingRight = t.localScale.x > 0;
        if (mainCamera)
            cameraPos = mainCamera.transform.position;
    // Update is called once per frame
    void Update()
        // Movement controls
        if ((Input.GetKey(KeyCode.A) || Input.GetKey(KeyCode.D)) && (isGrounded || Mathf.Abs(r2d.velocity.x) > 0.01f))
            moveDirection = Input.GetKey(KeyCode.A) ? -1 : 1;
            if (isGrounded || r2d.velocity.magnitude < 0.01f)
                moveDirection = 0;
        // Change facing direction
        if (moveDirection != 0)
            if (moveDirection > 0 && !facingRight)
                facingRight = true;
                t.localScale = new Vector3(Mathf.Abs(t.localScale.x), t.localScale.y, transform.localScale.z);
            if (moveDirection < 0 && facingRight)
                facingRight = false;
                t.localScale = new Vector3(-Mathf.Abs(t.localScale.x), t.localScale.y, t.localScale.z);
        // Jumping
        if (Input.GetKeyDown(KeyCode.W) && isGrounded)
            r2d.velocity = new Vector2(r2d.velocity.x, jumpHeight);
        // Camera follow
        if (mainCamera)
            mainCamera.transform.position = new Vector3(t.position.x, cameraPos.y, cameraPos.z);
    void FixedUpdate()
        Bounds colliderBounds = mainCollider.bounds;
        float colliderRadius = mainCollider.size.x * 0.4f * Mathf.Abs(transform.localScale.x);
        Vector3 groundCheckPos = colliderBounds.min + new Vector3(colliderBounds.size.x * 0.5f, colliderRadius * 0.9f, 0);
        // Check if player is grounded
        Collider2D[] colliders = Physics2D.OverlapCircleAll(groundCheckPos, colliderRadius);
        //Check if any of the overlapping colliders are not player collider, if so, set isGrounded to true
        isGrounded = false;
        if (colliders.Length > 0)
            for (int i = 0; i < colliders.Length; i++)
                if (colliders[i] != mainCollider)
                    isGrounded = true;
                    break;
        // Apply movement velocity
        r2d.velocity = new Vector2((moveDirection) * maxSpeed, r2d.velocity.y);