unity3 人物上坡代码

以下是一个基本的Unity3D上坡代码示例，用于控制角色在斜坡上移动：

public class SlopeController : MonoBehaviour {

    public float moveSpeed;
    public float slopeForce;
    public float slopeForceRayLength;

    private Rigidbody2D rb2d;

    void Start () {
        rb2d = GetComponent<Rigidbody2D>();
    }

    void FixedUpdate () {
        float horizontalInput = Input.GetAxis("Horizontal");

        // Move the player horizontally
        rb2d.velocity = new Vector2(horizontalInput * moveSpeed, rb2d.velocity.y);

        // Check if player is on a slope
        RaycastHit2D hit = Physics2D.Raycast(transform.position, Vector2.down, slopeForceRayLength, LayerMask.GetMask("Ground"));

        if (hit.collider != null && hit.normal != Vector2.up) {
            // Apply slope force to move player up the slope
            float slopeAngle = Vector2.Angle(hit.normal, Vector2.up);
            if (slopeAngle < rb2d.gravityScale * 90f) {
                Vector2 slopeForceVector = new Vector2(hit.normal.x * slopeForce, hit.normal.y * slopeForce);
                rb2d.AddForce(slopeForceVector);
            }
        }
    }
}

该代码使用了Unity的物理引擎，在FixedUpdate函数中检测角色是否在斜坡上，并根据斜坡的角度和重力大小计算一个斜坡力，从而让角色在斜坡上移动。同时，代码还包括了一个基本的水平移动控制，可由玩家通过键盘输入控制。