Unity类原神小地图

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

public class MiniMap : MonoBehaviour
{
    public Transform miniMapRange;
    private RectTransform rectMap;
    private RectTransform playerPoint;
    private RectTransform miniMapMaskRect;
    public float miniMapRauid;
    public Transform player;
    private Vector3 localPos;
    private Vector3 localRotation;
    public LayerMask ground;
    private float mapHalfWeight;
    private float mapHalfHeight;
    private float mapMaskHalfWeight;
    private float mapMaskHalfHeight;
    private void Awake()
    {
        rectMap = transform.Find("Map").GetComponent<RectTransform>();
        playerPoint = transform.Find("playerPoint").GetComponent<RectTransform>();
        miniMapMaskRect = transform.GetComponent<RectTransform>();
        mapHalfWeight = rectMap.sizeDelta.x * 0.5f;
        mapHalfHeight = rectMap.sizeDelta.y * 0.5f;
        mapMaskHalfWeight = miniMapMaskRect.sizeDelta.x * 0.5f;
        mapMaskHalfHeight = miniMapMaskRect.sizeDelta.y * 0.5f;

    }
    private void FixedUpdate()
    {
        CaculateMiniMapPos(CaculateMapPos());
        CaculateplayerPointRotation();
    }
    //世界位置相对地图像素位置
    public Vector2 CaculateMapPos()
    {
        localPos = miniMapRange.InverseTransformPoint(player.position);
        localPos = new Vector3(Mathf.Clamp(localPos.x, -1, 1), localPos.y, Mathf.Clamp(localPos.z, -1, 1));
        float x = mapHalfWeight * localPos.x + mapHalfWeight;
        float y = mapHalfHeight * localPos.z + mapHalfHeight;
        return new Vector2(x,y);
    }
    //屏幕像素转换到世界位置
    public Vector3 CaculateMapToWorldPos(Vector2 vector2)
    {
        Vector3 pos = Vector3.zero;
        float x = vector2.x / rectMap.sizeDelta.x;
        float y = vector2.y / rectMap.sizeDelta.y;
        x -= 0.5f;
        y -= 0.5f;
        pos.x = x;
        pos.z = y;
        pos.y = 1000;
        pos= miniMapRange.TransformPoint(pos);
        if (Physics.Raycast(pos,-Vector3.up,out RaycastHit hit,3000,ground))
        {
            pos.y= hit.point.y;
        }
        else
            pos = Vector3.zero;
        

        return pos;
    }

    //计算小地图的位置
    public void CaculateMiniMapPos(Vector2 pos)
    {
        float x = -(pos.x - mapMaskHalfWeight);
        float y = -(pos.y - mapMaskHalfHeight);
        rectMap.anchoredPosition = new Vector2(x,y);
    }
    //计算地图player旋转
    public void CaculateplayerPointRotation()
    {
        localRotation = (miniMapRange.rotation * player.rotation).eulerAngles;
        Vector3 euler = new Vector3(0,0,360- localRotation.y);
        playerPoint.localRotation = Quaternion.Euler(euler);
    }
}

 

 

角色旋转后角色小地图的视野也会跟着旋转。

上方对应世界+z方向

右方对应世界+x方向