In my game, the player controller has a crouch feature. Currently, you must hold left control in order to crouch. How can I make it so that if you press left control once, the crouch mechanic is activated and if it’s pressed again, it is inactivated? Here is the code:
using UnityEngine;
public class Crouch : MonoBehaviour
{
public KeyCode key = KeyCode.LeftControl;
[Header("Slow Movement")]
[Tooltip("Movement to slow down when crouched.")]
public FirstPersonMovement movement;
[Tooltip("Movement speed when crouched.")]
public float movementSpeed = 2;
[Header("Low Head")]
[Tooltip("Head to lower when crouched.")]
public Transform headToLower;
[HideInInspector]
public float? defaultHeadYLocalPosition;
public float crouchYHeadPosition = 1;
[Tooltip("Collider to lower when crouched.")]
public CapsuleCollider colliderToLower;
[HideInInspector]
public float? defaultColliderHeight;
public bool IsCrouched { get; private set; }
public event System.Action CrouchStart, CrouchEnd;
void Reset()
{
// Try to get components.
movement = GetComponentInParent<FirstPersonMovement>();
headToLower = movement.GetComponentInChildren<Camera>().transform;
colliderToLower = movement.GetComponentInChildren<CapsuleCollider>();
}
void LateUpdate()
{
if (Input.GetKey(key))
{
// Enforce a low head.
if (headToLower)
{
// If we don't have the defaultHeadYLocalPosition, get it now.
if (!defaultHeadYLocalPosition.HasValue)
{
defaultHeadYLocalPosition = headToLower.localPosition.y;
}
// Lower the head.
headToLower.localPosition = new Vector3(headToLower.localPosition.x, crouchYHeadPosition, headToLower.localPosition.z);
}
// Enforce a low colliderToLower.
if (colliderToLower)
{
// If we don't have the defaultColliderHeight, get it now.
if (!defaultColliderHeight.HasValue)
{
defaultColliderHeight = colliderToLower.height;
}
// Get lowering amount.
float loweringAmount;
if(defaultHeadYLocalPosition.HasValue)
{
loweringAmount = defaultHeadYLocalPosition.Value - crouchYHeadPosition;
}
else
{
loweringAmount = defaultColliderHeight.Value * .5f;
}
// Lower the colliderToLower.
colliderToLower.height = Mathf.Max(defaultColliderHeight.Value - loweringAmount, 0);
colliderToLower.center = Vector3.up * colliderToLower.height * .5f;
}
// Set IsCrouched state.
if (!IsCrouched)
{
IsCrouched = true;
SetSpeedOverrideActive(true);
CrouchStart?.Invoke();
}
}
else
{
if (IsCrouched)
{
// Rise the head back up.
if (headToLower)
{
headToLower.localPosition = new Vector3(headToLower.localPosition.x, defaultHeadYLocalPosition.Value, headToLower.localPosition.z);
}
// Reset the colliderToLower's height.
if (colliderToLower)
{
colliderToLower.height = defaultColliderHeight.Value;
colliderToLower.center = Vector3.up * colliderToLower.height * .5f;
}
// Reset IsCrouched.
IsCrouched = false;
SetSpeedOverrideActive(false);
CrouchEnd?.Invoke();
}
}
}
#region Speed override.
void SetSpeedOverrideActive(bool state)
{
// Stop if there is no movement component.
if(!movement)
{
return;
}
// Update SpeedOverride.
if (state)
{
// Try to add the SpeedOverride to the movement component.
if (!movement.speedOverrides.Contains(SpeedOverride))
{
movement.speedOverrides.Add(SpeedOverride);
}
}
else
{
// Try to remove the SpeedOverride from the movement component.
if (movement.speedOverrides.Contains(SpeedOverride))
{
movement.speedOverrides.Remove(SpeedOverride);
}
}
}
float SpeedOverride() => movementSpeed;
#endregion
},My player controller script has a crouch feature. Currently, you have to hold the left control button to crouch. How can I make it so that if the player presses left control, the crouch mechanic will be activated until the button is pressed again? Here is the code:
using UnityEngine;
public class Crouch : MonoBehaviour
{
public KeyCode key = KeyCode.LeftControl;
[Header("Slow Movement")]
[Tooltip("Movement to slow down when crouched.")]
public FirstPersonMovement movement;
[Tooltip("Movement speed when crouched.")]
public float movementSpeed = 2;
[Header("Low Head")]
[Tooltip("Head to lower when crouched.")]
public Transform headToLower;
[HideInInspector]
public float? defaultHeadYLocalPosition;
public float crouchYHeadPosition = 1;
[Tooltip("Collider to lower when crouched.")]
public CapsuleCollider colliderToLower;
[HideInInspector]
public float? defaultColliderHeight;
public bool IsCrouched { get; private set; }
public event System.Action CrouchStart, CrouchEnd;
void Reset()
{
// Try to get components.
movement = GetComponentInParent<FirstPersonMovement>();
headToLower = movement.GetComponentInChildren<Camera>().transform;
colliderToLower = movement.GetComponentInChildren<CapsuleCollider>();
}
void LateUpdate()
{
if (Input.GetKey(key))
{
// Enforce a low head.
if (headToLower)
{
// If we don't have the defaultHeadYLocalPosition, get it now.
if (!defaultHeadYLocalPosition.HasValue)
{
defaultHeadYLocalPosition = headToLower.localPosition.y;
}
// Lower the head.
headToLower.localPosition = new Vector3(headToLower.localPosition.x, crouchYHeadPosition, headToLower.localPosition.z);
}
// Enforce a low colliderToLower.
if (colliderToLower)
{
// If we don't have the defaultColliderHeight, get it now.
if (!defaultColliderHeight.HasValue)
{
defaultColliderHeight = colliderToLower.height;
}
// Get lowering amount.
float loweringAmount;
if(defaultHeadYLocalPosition.HasValue)
{
loweringAmount = defaultHeadYLocalPosition.Value - crouchYHeadPosition;
}
else
{
loweringAmount = defaultColliderHeight.Value * .5f;
}
// Lower the colliderToLower.
colliderToLower.height = Mathf.Max(defaultColliderHeight.Value - loweringAmount, 0);
colliderToLower.center = Vector3.up * colliderToLower.height * .5f;
}
// Set IsCrouched state.
if (!IsCrouched)
{
IsCrouched = true;
SetSpeedOverrideActive(true);
CrouchStart?.Invoke();
}
}
else
{
if (IsCrouched)
{
// Rise the head back up.
if (headToLower)
{
headToLower.localPosition = new Vector3(headToLower.localPosition.x, defaultHeadYLocalPosition.Value, headToLower.localPosition.z);
}
// Reset the colliderToLower's height.
if (colliderToLower)
{
colliderToLower.height = defaultColliderHeight.Value;
colliderToLower.center = Vector3.up * colliderToLower.height * .5f;
}
// Reset IsCrouched.
IsCrouched = false;
SetSpeedOverrideActive(false);
CrouchEnd?.Invoke();
}
}
}
#region Speed override.
void SetSpeedOverrideActive(bool state)
{
// Stop if there is no movement component.
if(!movement)
{
return;
}
// Update SpeedOverride.
if (state)
{
// Try to add the SpeedOverride to the movement component.
if (!movement.speedOverrides.Contains(SpeedOverride))
{
movement.speedOverrides.Add(SpeedOverride);
}
}
else
{
// Try to remove the SpeedOverride from the movement component.
if (movement.speedOverrides.Contains(SpeedOverride))
{
movement.speedOverrides.Remove(SpeedOverride);
}
}
}
float SpeedOverride() => movementSpeed;
#endregion
}