using UnityEngine;

public class PlayerAnimController : MonoBehaviour
{
    Animator animator;

    void Start()
    {
        animator = GetComponent<Animator>();
    }

    void Update()
    {
        // Note: Uses legacy Input Manager for simplicity. See unity-input for the new Input System.
        float h = Input.GetAxis("Horizontal");
        float v = Input.GetAxis("Vertical");
        bool fire = Input.GetButtonDown("Fire1");

        animator.SetFloat("Forward", v);
        animator.SetFloat("Strafe", h);
        animator.SetBool("Fire", fire);
    }

    void OnCollisionEnter(Collision col)
    {
        if (col.gameObject.CompareTag("Enemy"))
        {
            animator.SetTrigger("Die");
        }
    }
}

public class AttackState : StateMachineBehaviour
{
    public AudioClip attackSound;
    override public void OnStateEnter(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
    {
        AudioSource.PlayClipAtPoint(attackSound, animator.transform.position);
    }
    override public void OnStateExit(Animator animator, AnimatorStateInfo stateInfo, int layerIndex)
    {
        // Cleanup when leaving state
    }
}

// Driving a locomotion blend tree from script
void Update()
{
    float speed = new Vector3(rb.velocity.x, 0, rb.velocity.z).magnitude;
    float direction = Vector3.SignedAngle(transform.forward,
        rb.velocity.normalized, Vector3.up);

    animator.SetFloat("Speed", speed, 0.1f, Time.deltaTime);
    animator.SetFloat("Direction", direction, 0.1f, Time.deltaTime);
}

// Custom root motion handling
using UnityEngine;

[RequireComponent(typeof(Animator))]
public class RootMotionController : MonoBehaviour
{
    Animator animator;
    CharacterController controller;

    void Start()
    {
        animator = GetComponent<Animator>();
        controller = GetComponent<CharacterController>();
        animator.applyRootMotion = false; // We handle it manually
    }

    void OnAnimatorMove()
    {
        // Apply root motion through CharacterController
        Vector3 deltaPosition = animator.deltaPosition;
        deltaPosition.y -= 9.81f * Time.deltaTime; // Add gravity
        controller.Move(deltaPosition);
        transform.rotation *= animator.deltaRotation;
    }
}

using UnityEngine;

public class FootstepHandler : MonoBehaviour
{
    public AudioClip[] footstepSounds;
    public GameObject dustPrefab;

    // Called by animation event -- function name must match event
    public void PlayFootstep(int footIndex)
    {
        if (footstepSounds.Length > 0)
        {
            int clipIndex = Random.Range(0, footstepSounds.Length);
            AudioSource.PlayClipAtPoint(footstepSounds[clipIndex], transform.position);
        }
    }

    // Called by animation event passing an Object parameter
    public void SpawnEffect(Object effectPrefab)
    {
        Instantiate((GameObject)effectPrefab, transform.position, Quaternion.identity);
    }
}

using UnityEngine;

public class IKController : MonoBehaviour
{
    Animator animator;
    public bool ikActive = true;
    public Transform rightHandTarget;
    public Transform lookTarget;

    void Start()
    {
        animator = GetComponent<Animator>();
    }

    void OnAnimatorIK()
    {
        if (animator == null || !ikActive) return;

        // Look at target
        animator.SetLookAtWeight(1f);
        animator.SetLookAtPosition(lookTarget.position);

        // Right hand IK
        animator.SetIKPositionWeight(AvatarIKGoal.RightHand, 1f);
        animator.SetIKRotationWeight(AvatarIKGoal.RightHand, 1f);
        animator.SetIKPosition(AvatarIKGoal.RightHand, rightHandTarget.position);
        animator.SetIKRotation(AvatarIKGoal.RightHand, rightHandTarget.rotation);
    }
}

// Play state immediately
animator.Play("Attack");

// Play with normalized time offset (start at 50%)
animator.Play("Attack", 0, 0.5f);

// Crossfade into state over 0.25 seconds
animator.CrossFadeInFixedTime("Run", 0.25f);

// Crossfade using normalized time
animator.CrossFade("Run", 0.1f);

AnimatorStateInfo stateInfo = animator.GetCurrentAnimatorStateInfo(0);

if (stateInfo.IsName("Attack"))
{
    Debug.Log("Currently attacking");
}

if (stateInfo.normalizedTime >= 1.0f && !animator.IsInTransition(0))
{
    Debug.Log("Animation finished");
}

// Use hash for performance
int runHash = Animator.StringToHash("Run");
if (animator.HasState(0, runHash))
{
    animator.Play(runHash);
}

// Match character's hand to a ledge position during climb animation
animator.MatchTarget(ledgePosition, Quaternion.identity, AvatarTarget.RightHand,
    new MatchTargetWeightMask(Vector3.one, 0f), 0.1f, 0.4f);

using UnityEngine;

[RequireComponent(typeof(Animator))]
public class LocomotionController : MonoBehaviour
{
    Animator animator;
    static readonly int SpeedHash = Animator.StringToHash("Speed");
    static readonly int GroundedHash = Animator.StringToHash("Grounded");
    static readonly int JumpHash = Animator.StringToHash("Jump");

    void Start()
    {
        animator = GetComponent<Animator>();
    }

    void Update()
    {
        float speed = Input.GetAxis("Vertical");
        animator.SetFloat(SpeedHash, Mathf.Abs(speed), 0.1f, Time.deltaTime);
        animator.SetBool(GroundedHash, IsGrounded());

        if (Input.GetButtonDown("Jump") && IsGrounded())
        {
            animator.SetTrigger(JumpHash);
        }
    }

    bool IsGrounded()
    {
        return Physics.Raycast(transform.position + Vector3.up * 0.1f, Vector3.down, 0.2f);
    }
}

using UnityEngine;

public class WeaponAnimSwap : MonoBehaviour
{
    public AnimatorOverrideController swordOverride;
    public AnimatorOverrideController bowOverride;
    Animator animator;

    void Start()
    {
        animator = GetComponent<Animator>();
    }

    public void EquipSword()
    {
        animator.runtimeAnimatorController = swordOverride;
    }

    public void EquipBow()
    {
        animator.runtimeAnimatorController = bowOverride;
    }
}