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using UnityEngine;

public class PlayerController : MonoBehaviour
{
public float speed = 10f;         // Movement speed
public float jumpForce = 10f;     // Jump force
private bool canJump = true;      // Flag to check if the player can jump

private CharacterController controller;
private Vector3 velocity;        // Used to apply gravity and jump force

public Transform groundCheck;     // Position for ground detection
public float groundDistance = 0.3f;  // Radius of ground check sphere (adjustable)
public LayerMask groundMask;      // Layer mask for ground detection

void Start()
{
controller = GetComponent();
}

void Update()
{
// Ground check using Physics.CheckSphere
bool isGrounded = Physics.CheckSphere(groundCheck.position, groundDistance, groundMask);

// Debugging: Output whether the player is grounded and the position of groundCheck
Debug.Log("Is Grounded: " + isGrounded + " | GroundCheck Position: " + groundCheck.position);

// When grounded, reset downward velocity and allow jumping
if (isGrounded)
{
if (velocity.y < 0)
{
velocity.y = -2f;  // Small downward force to keep player grounded
}
canJump = true;    // Allow jumping when grounded
}
else
{
canJump = false;  // Disable jumping when not grounded
}

// Player movement
float moveX = Input.GetAxis("Horizontal");
float moveZ = Input.GetAxis("Vertical");

Vector3 move = transform.right * moveX + transform.forward * moveZ;
controller.Move(move * speed * Time.deltaTime);

// Jumping logic (only allow jump when grounded)
if (Input.GetButtonDown("Jump") && canJump)
{
// Apply jump force
velocity.y = Mathf.Sqrt(jumpForce * -2f * Physics.gravity.y);

// Disable jumping until grounded again
canJump = false;
}

// Apply gravity to simulate falling
velocity.y += Physics.gravity.y * Time.deltaTime;
controller.Move(velocity * Time.deltaTime);
}

void OnCollisionEnter(Collision collision)
{
// If the player collides with the ground, set canJump to true
if (collision.gameObject.CompareTag("Ground"))
{
canJump = true;  // Allow jumping again when touching the ground
}
}

// Visualize the ground check area
void OnDrawGizmos()
{
if (groundCheck != null)
{
Gizmos.color = Color.green;
Gizmos.DrawWireSphere(groundCheck.position, groundDistance);  // Visualize the ground check area
}
}
}