init: version 1
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152
Assets/Prefabs/Player/Scripts/MovementController.cs
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152
Assets/Prefabs/Player/Scripts/MovementController.cs
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using UnityEngine;
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/// <summary>
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/// PlayerController moves the player based on user input.
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/// </summary>
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[RequireComponent(typeof(Rigidbody2D), typeof(Collider2D), typeof(Animator))]
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public class PlayerController : MonoBehaviour
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{
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[Header("Movement Speed")]
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public float movementSpeed = 8f;
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public float jumpForce = 450f;
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[Header("Air Control")]
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public float normalGravityScale = 0.9f;
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public float fastFallGravityScale = 2f;
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public float airControlMultiplier = 0.3f;
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public float airControlLerpStart = 1.2f;
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public float airControlLerpSpeed = 1f;
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[Header("Jump Acceleration Time")]
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public float hangTime = .2f;
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[Header("Coyote Time")]
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public float coyoteTime = 0.2f;
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private Rigidbody2D _rb;
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private Animator _animator;
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private TrailRenderer _trail;
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private bool _isGrounded;
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private int _isGroundedCounter;
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private float _jumpTimer;
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private bool _isJumping;
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private float _moveHorizontal;
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private float _lastGroundedHorizontalInput;
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private float _airControlLerpTimer;
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private void Awake()
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{
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_rb = GetComponent<Rigidbody2D>();
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_animator = GetComponent<Animator>();
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_trail = GetComponentInChildren<TrailRenderer>();
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}
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private void Update()
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{
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// Get horizontal input
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_moveHorizontal = Input.GetAxis("Horizontal");
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// Update player state
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_animator.SetBool("IsWalking", _moveHorizontal != 0);
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if (_moveHorizontal != 0)
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{
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Vector3 scale = transform.localScale;
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scale.x = _moveHorizontal > 0 ? -1 : 1;
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transform.localScale = scale;
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}
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// Get vertical input for jump
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if ((Input.GetKeyDown(KeyCode.W) || Input.GetKeyDown(KeyCode.Space)) && (_isGrounded || _jumpTimer < coyoteTime))
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{
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_rb.AddForce(Vector2.up * jumpForce, ForceMode2D.Force);
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_isJumping = true;
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_jumpTimer = 0f;
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_lastGroundedHorizontalInput = _moveHorizontal;
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}
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// Variable jump height: if jump key released early, cut upward velocity
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if (_isJumping && (Input.GetKeyUp(KeyCode.W) || Input.GetKeyUp(KeyCode.Space)) && _rb.linearVelocity.y > 0f)
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{
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_rb.linearVelocity = new Vector2(_rb.linearVelocity.x, _rb.linearVelocity.y * 0.3f);
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_isJumping = false;
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}
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// Fast fall with S
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_rb.gravityScale = Input.GetKey(KeyCode.S) ? fastFallGravityScale : normalGravityScale;
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// Timer countdown
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if (!_isGrounded)
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{
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_jumpTimer += Time.deltaTime;
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}
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}
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private void FixedUpdate()
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{
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float input;
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if (_isGrounded)
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{
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input = _moveHorizontal;
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}
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else
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{
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_airControlLerpTimer -= _airControlLerpTimer > 0 ? Time.deltaTime * airControlLerpSpeed : 0f;
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input = (_isJumping && _jumpTimer < hangTime ? _lastGroundedHorizontalInput : _moveHorizontal) *
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Mathf.Lerp(airControlMultiplier, airControlLerpStart, _airControlLerpTimer);
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}
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_rb.linearVelocity = new Vector2(input * movementSpeed, _rb.linearVelocity.y);
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}
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private void OnCollisionEnter2D(Collision2D collision)
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{
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if (collision.gameObject.CompareTag("Unjumpable")) return;
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_isGroundedCounter++;
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_isGrounded = true;
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if (_isGrounded)
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{
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_animator.SetFloat("JumpTime", _jumpTimer);
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_animator.SetBool("IsJumping", false);
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_trail.emitting = false;
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_isJumping = false;
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_jumpTimer = 0f;
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_airControlLerpTimer = 1f;
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}
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}
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private void OnCollisionExit2D(Collision2D collision)
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{
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if (collision.gameObject.CompareTag("Unjumpable")) return;
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_isGroundedCounter = Mathf.Max(0, _isGroundedCounter - 1);
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if (_isGroundedCounter <= 0)
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{
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_isGrounded = false;
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_animator.SetBool("IsJumping", true);
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_trail.emitting = true;
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}
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}
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private void OnEnable()
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{
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GameManager manager = GameManager.Instance;
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manager.onMapSwitch.AddListener(OnMapSwitch);
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}
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private void OnDisable()
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{
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GameManager manager = GameManager.Instance;
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manager.onMapSwitch.RemoveListener(OnMapSwitch);
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}
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private void OnMapSwitch(int idx, Vector3 o)
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{
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transform.position += o;
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_trail.Clear();
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}
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}
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