Matteo Cominetti
96 lines
3.0 KiB
C#
96 lines
3.0 KiB
C#
using UnityEngine;
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public class Crouch : MonoBehaviour
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{
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public float crouchSpeed = 2;
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public float crouchYLocalPosition = 1;
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[Tooltip("Head to lower when we crouch")]
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public Transform head;
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[HideInInspector]
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public float defaultHeadYLocalPosition;
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[Tooltip("Capsule collider to lower when we crouch.\nCan be empty.")]
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public CapsuleCollider capsuleCollider;
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[HideInInspector]
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public float defaultCapsuleColliderHeight;
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public GroundCheck groundCheck;
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public FirstPersonMovement character;
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public KeyCode key = KeyCode.LeftControl;
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public bool IsCrouched { get; private set; }
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public event System.Action CrouchStart, CrouchEnd;
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void Reset()
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{
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head = GetComponentInChildren<Camera>().transform;
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capsuleCollider = GetComponentInChildren<CapsuleCollider>();
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character = GetComponentInParent<FirstPersonMovement>();
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// Get or create the groundCheck object.
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groundCheck = GetComponentInChildren<GroundCheck>();
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if (!groundCheck)
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groundCheck = GroundCheck.Create(transform);
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}
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void Start()
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{
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defaultHeadYLocalPosition = head.localPosition.y;
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if (capsuleCollider)
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defaultCapsuleColliderHeight = capsuleCollider.height;
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}
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void LateUpdate()
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{
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if (Input.GetKey(key))
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{
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// Enforce crouched y local position of the head.
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head.localPosition = new Vector3(head.localPosition.x, crouchYLocalPosition, head.localPosition.z);
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// Lower the capsule collider.
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if (capsuleCollider)
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{
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capsuleCollider.height = defaultCapsuleColliderHeight - (defaultHeadYLocalPosition - crouchYLocalPosition);
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capsuleCollider.center = Vector3.up * capsuleCollider.height * .5f;
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}
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// Set state.
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if (!IsCrouched)
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{
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IsCrouched = true;
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SetSpeedOverrideActive(true);
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CrouchStart?.Invoke();
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}
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}
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else if (IsCrouched)
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{
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// Reset the head to its default y local position.
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head.localPosition = new Vector3(head.localPosition.x, defaultHeadYLocalPosition, head.localPosition.z);
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// Reset the capsule collider's position.
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if (capsuleCollider)
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{
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capsuleCollider.height = defaultCapsuleColliderHeight;
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capsuleCollider.center = Vector3.up * capsuleCollider.height * .5f;
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}
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// Reset state.
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IsCrouched = false;
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SetSpeedOverrideActive(false);
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CrouchEnd?.Invoke();
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}
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}
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void SetSpeedOverrideActive(bool state)
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{
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if (state && !character.speedOverrides.Contains(SpeedOverride))
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character.speedOverrides.Add(SpeedOverride);
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if (!state && character.speedOverrides.Contains(SpeedOverride))
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character.speedOverrides.Remove(SpeedOverride);
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}
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float SpeedOverride() => crouchSpeed;
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}
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