using UnityEngine; using System.Collections; using System.Collections.Generic; [RequireComponent(typeof(Rigidbody))] [RequireComponent(typeof(UnitState))] [RequireComponent(typeof(CapsuleCollider))] public class PlayerMovement : MonoBehaviour { [Header("Linked Components")] private UnitAnimator animator; private Rigidbody rb; private UnitState playerState; private CapsuleCollider capsule; [Header("Settings")] public float walkSpeed = 3f; public float runSpeed = 6f; public float ZSpeed = 1.5f; public float JumpForce = 8f; public bool AllowDepthJumping; public float AirAcceleration = 3f; public float AirMaxSpeed = 3f; public float rotationSpeed = 15f; public float jumpRotationSpeed = 30f; public float lookAheadDistance = .2f; public float landRecoveryTime = .1f; public float landTime = 0; public LayerMask CollisionLayer; [Header("Audio")] public string jumpUpVoice = ""; public string jumpLandVoice = ""; [Header("Stats")] public DIRECTION currentDirection; public Vector2 inputDirection; public bool jumpInProgress; private bool isDead = false; public bool JumpNextFixedUpdate; private float jumpDownwardsForce = .3f; private float lastJumpTime = 0f; public int playerNumber; //a list of states where movement can take place private List MovementStates = new List { UNITSTATE.IDLE, UNITSTATE.WALK, UNITSTATE.RUN, UNITSTATE.JUMPING, UNITSTATE.JUMPKICK, UNITSTATE.LAND, UNITSTATE.DEFEND, }; //-- void OnEnable() { InputManager.onInputEvent += OnInputEvent; InputManager.onDirectionInputEvent += OnDirectionInputEvent; } void OnDisable() { InputManager.onInputEvent -= OnInputEvent; InputManager.onDirectionInputEvent -= OnDirectionInputEvent; } void Start(){ //find components if(!animator) animator = GetComponentInChildren(); if(!rb) rb = GetComponent(); if(!playerState) playerState = GetComponent(); if(!capsule) capsule = GetComponent(); //error messages for missing components if(!animator) Debug.LogError("No animator found inside " + gameObject.name); if(!rb) Debug.LogError("No Rigidbody component found on " + gameObject.name); if(!playerState) Debug.LogError("No UnitState component found on " + gameObject.name); if(!capsule) Debug.LogError("No Capsule Collider found on " + gameObject.name); } void FixedUpdate() { if(!MovementStates.Contains(playerState.currentState) || isDead) return; //defend if(playerState.currentState == UNITSTATE.DEFEND){ TurnToCurrentDirection(); return; } //start a jump if(JumpNextFixedUpdate){ Jump(); return; } //land after a jump if(jumpInProgress && IsGrounded()){ HasLanded(); return; } //A short recovery time after landing if(playerState.currentState == UNITSTATE.LAND && Time.time - landTime > landRecoveryTime) playerState.SetState(UNITSTATE.IDLE); //air and ground Movement bool isGrounded = IsGrounded(); animator.SetAnimatorBool("isGrounded", isGrounded); if(isGrounded) animator.SetAnimatorBool("Falling", false); if(isGrounded){ MoveGrounded(); } else { MoveAirborne(); } //always turn towards the current direction TurnToCurrentDirection(); } //movement on the ground void MoveGrounded(){ //do nothing when landing if(playerState.currentState == UNITSTATE.LAND) return; //move when there is no wall in front of us and input is detected if(rb != null && (inputDirection.sqrMagnitude>0 && !WallInFront())) { //set movement speed to run speed or walk speed depending on the current state float movementSpeed = playerState.currentState == UNITSTATE.RUN? runSpeed : walkSpeed; rb.velocity = new Vector3( inputDirection.x * -movementSpeed, rb.velocity.y + Physics.gravity.y * Time.fixedDeltaTime, inputDirection.y * -ZSpeed); if(animator) animator.SetAnimatorFloat("MovementSpeed", rb.velocity.magnitude); } else { //stop moving, but still apply gravity rb.velocity = new Vector3(0, rb.velocity.y + Physics.gravity.y * Time.fixedDeltaTime, 0); if(animator) animator.SetAnimatorFloat("MovementSpeed", 0); playerState.SetState(UNITSTATE.IDLE); } //sets the run state in the animator to true or false animator.SetAnimatorBool("Run", playerState.currentState == UNITSTATE.RUN); } //movement in the air void MoveAirborne(){ //falling down if(rb.velocity.y < 0.1f && playerState.currentState != UNITSTATE.KNOCKDOWN) animator.SetAnimatorBool("Falling", true); if(!WallInFront()) { //movement direction based on current input int dir = Mathf.Clamp(Mathf.RoundToInt(-inputDirection.x), -1, 1); float xpeed = Mathf.Clamp(rb.velocity.x + AirMaxSpeed * dir * Time.fixedDeltaTime * AirAcceleration, -AirMaxSpeed, AirMaxSpeed); float downForce = rb.velocity.y>0? 0 : jumpDownwardsForce; //adds a small downwards force when going down //apply movement if(AllowDepthJumping) { rb.velocity = new Vector3(xpeed, rb.velocity.y - downForce, -inputDirection.y * ZSpeed); } else { rb.velocity = new Vector3(xpeed, rb.velocity.y - downForce, 0); } } } //perform a jump void Jump(){ playerState.SetState(UNITSTATE.JUMPING); JumpNextFixedUpdate = false; jumpInProgress = true; rb.velocity = Vector3.up * JumpForce; lastJumpTime = Time.time; //play animation animator.SetAnimatorBool("JumpInProgress", true); animator.SetAnimatorBool("Run", false); animator.SetAnimatorTrigger("JumpUp"); animator.ShowDustEffectJump(); //play sfx if(jumpUpVoice != "") GlobalAudioPlayer.PlaySFXAtPosition(jumpUpVoice, transform.position); } //player has landed after a jump void HasLanded(){ jumpInProgress = false; playerState.SetState(UNITSTATE.LAND); rb.velocity = Vector2.zero; landTime = Time.time; //set animator properties animator.SetAnimatorFloat("MovementSpeed", 0f); animator.SetAnimatorBool("JumpInProgress", false); animator.SetAnimatorBool("JumpKickActive", false); animator.SetAnimatorBool("Falling", false); animator.ShowDustEffectLand(); //sfx GlobalAudioPlayer.PlaySFX("FootStep"); if(jumpLandVoice != "") GlobalAudioPlayer.PlaySFXAtPosition(jumpLandVoice, transform.position); } #region controller input //set current direction to input direction void OnDirectionInputEvent(Vector2 dir, bool doubleTapActive, int playerNum) { if (playerNum != this.playerNumber) return; //ignore input when we are dead or when this state is not active if(!MovementStates.Contains(playerState.currentState) || isDead) return; //set current direction based on the input vector. Mathf.sign is used because we want the player to stay in the left or right direction when moving up/down) int dir2 = Mathf.RoundToInt(Mathf.Sign((float)-inputDirection.x)); if(Mathf.Abs(inputDirection.x) > 0) SetDirection((DIRECTION)dir2); inputDirection = dir; //start running on double tap if(doubleTapActive && IsGrounded() && Mathf.Abs(dir.x)>0) playerState.SetState(UNITSTATE.RUN); } public bool JumpIsRecent() { return lastJumpTime > Time.time - PlayerCombat.SIMULTANEOUS_BUTTON_SPACING; } //input actions void OnInputEvent(string action, BUTTONSTATE buttonState, int playerNum) { if (playerNum != playerNumber) return; //special attack (jump + attack) if jump is hit second PlayerCombat pc = GetComponent(); if (action == "Jump" && buttonState == BUTTONSTATE.PRESS && playerState.currentState == UNITSTATE.PUNCH && pc.AttackIsRecent()) { pc.DoSpecialAttack(this); } //ignore input when we are dead or when this state is not active if (!MovementStates.Contains(playerState.currentState) || isDead) return; if (action == "Jump" && buttonState == BUTTONSTATE.PRESS && IsGrounded() && playerState.currentState != UNITSTATE.JUMPING) JumpNextFixedUpdate = true; //start running when a run button is pressed (e.g. Joypad controls) if(action == "Run") playerState.SetState(UNITSTATE.RUN); } #endregion //interrups an ongoing jump public void CancelJump(){ jumpInProgress = false; } //set current direction public void SetDirection(DIRECTION dir) { currentDirection = dir; if(animator) animator.currentDirection = currentDirection; } //returns the current direction public DIRECTION getCurrentDirection() { return currentDirection; } //returns true if the player is grounded public bool IsGrounded() { //check for capsule collisions with a 0.1 downwards offset from the capsule collider Vector3 bottomCapsulePos = transform.position + (Vector3.up) * (capsule.radius - 0.1f); return Physics.CheckCapsule(transform.position + capsule.center, bottomCapsulePos, capsule.radius, CollisionLayer); } //look (and turns) towards a direction public void TurnToCurrentDirection() { if(currentDirection == DIRECTION.Right || currentDirection == DIRECTION.Left) { float turnSpeed = jumpInProgress? jumpRotationSpeed : rotationSpeed; Vector3 newDir = Vector3.RotateTowards(transform.forward, Vector3.forward * -(int)currentDirection, turnSpeed * Time.fixedDeltaTime, 0.0f); transform.rotation = Quaternion.LookRotation(newDir); } } //update the direction based on the current input public void updateDirection() { TurnToCurrentDirection(); } //the player has died void Death() { isDead = true; rb.velocity = Vector3.zero; } //returns true if there is a environment collider in front of us bool WallInFront() { var MovementOffset = new Vector3(inputDirection.x, 0, inputDirection.y) * lookAheadDistance; var c = GetComponent(); Collider[] hitColliders = Physics.OverlapSphere(transform.position + Vector3.up * (c.radius + .1f) + -MovementOffset, c.radius, CollisionLayer); int i = 0; bool hasHitwall = false; while(i < hitColliders.Length) { if(CollisionLayer == (CollisionLayer | 1 << hitColliders[i].gameObject.layer)) hasHitwall = true; i++; } return hasHitwall; } //draw a lookahead sphere in the unity editor #if UNITY_EDITOR void OnDrawGizmos() { var c = GetComponent(); Gizmos.color = Color.yellow; Vector3 MovementOffset = new Vector3(inputDirection.x, 0, inputDirection.y) * lookAheadDistance; Gizmos.DrawWireSphere(transform.position + Vector3.up * (c.radius + .1f) + -MovementOffset, c.radius); } #endif } public enum DIRECTION { Right = -1, Left = 1, Up = 2, Down = -2, };