113 lines
4.2 KiB
C#
113 lines
4.2 KiB
C#
using System;
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using Sirenix.OdinInspector;
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using UnityEngine;
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namespace Cielonos.MainGame.Characters
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{
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public class GroundDetector
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{
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[ShowInInspector]
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private CharacterBase character;
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[ShowInInspector]
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private Transform characterTransform;
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public bool isOnGround;
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public float groundedLength;
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public float groundedRadius;
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public float groundedOffset;
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public LayerMask groundLayers;
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public GroundDetector()
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{
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}
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public GroundDetector(CharacterBase character, float groundedLength, float groundedRadius, float groundedOffset, LayerMask groundLayers)
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{
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this.character = character;
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this.characterTransform = character.transform;
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this.groundedLength = groundedLength;
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this.groundedRadius = groundedRadius;
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this.groundedOffset = groundedOffset;
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this.groundLayers = groundLayers;
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}
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private bool CheckOnGround(float length, float radius = -1f)
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{
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radius = radius < 0 ? groundedRadius : radius;
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Vector3 centerPosition = characterTransform.position - new Vector3(0, groundedOffset, 0);
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Vector3 startPosition = centerPosition + new Vector3(0, length / 2, 0);
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Vector3 endPosition = centerPosition - new Vector3(0, length / 2, 0);
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return Physics.CheckCapsule(startPosition, endPosition, radius, groundLayers, QueryTriggerInteraction.Ignore);
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}
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public bool DetectGround()
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{
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float predictDistance = -character.movementSc.finalMovementVelocity.y;
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float adjustedGroundedLength = groundedLength + Mathf.Max(0, predictDistance);
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return isOnGround = CheckOnGround(adjustedGroundedLength);
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}
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public bool DetectGround(float multiplier, float offset = 0f)
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{
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float predictDistance = -character.movementSc.finalMovementVelocity.y;
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float adjustedGroundedLength = (groundedLength + Mathf.Max(0, predictDistance)) * multiplier;
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return CheckOnGround(adjustedGroundedLength + offset);
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}
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public bool DetectGroundByFixedLength(float fixedLength, bool withPrediction = false, float overrideRadius = -1f)
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{
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float adjustedGroundedLength = fixedLength;
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if (withPrediction)
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{
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float predictDistance = -character.movementSc.finalMovementVelocity.y;
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adjustedGroundedLength = fixedLength + Mathf.Max(0, predictDistance);
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}
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return CheckOnGround(adjustedGroundedLength, overrideRadius);
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}
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/// <summary>
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/// 获取一个实体到地面的距离，如果返回Infinity则说明实体的下方没有地面
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/// </summary>
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/// <returns>实体到地面的距离</returns>
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public float GetDistanceToGround()
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{
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Vector3 rayOrigin = characterTransform.position - new Vector3(0, groundedOffset, 0);
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Ray ray = new Ray(rayOrigin, Vector3.down);
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if (Physics.Raycast(ray, out RaycastHit hit, Mathf.Infinity, groundLayers))
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{
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return hit.distance;
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}
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return Mathf.Infinity;
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}
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/// <summary>
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/// 忽略空中高度，获取一个实体在地面上的位置，如果返回false则说明实体的下方没有地面
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/// </summary>
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/// <param name="groundPosition">返回地面位置</param>
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/// <returns>实体下方是否有地面</returns>
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public bool GetGroundPosition(out Vector3 groundPosition)
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{
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if (isOnGround)
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{
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groundPosition = characterTransform.position;
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return true;
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}
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Vector3 rayOrigin = characterTransform.position - new Vector3(0, groundedOffset, 0);
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Ray ray = new Ray(rayOrigin, Vector3.down);
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if (Physics.Raycast(ray, out RaycastHit hit, Mathf.Infinity, groundLayers))
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{
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groundPosition = hit.point;
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return true;
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}
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groundPosition = characterTransform.position;
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return false;
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}
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}
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}
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