109 lines
3.5 KiB
C#
109 lines
3.5 KiB
C#
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using UnityEngine;
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using NeoFPS.Constants;
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using NeoFPS.CharacterMotion;
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using UnityEngine.Events;
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namespace NeoFPS
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{
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[RequireComponent (typeof (MotionController), typeof (ICharacterAudioHandler))]
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[HelpURL("https://docs.neofps.com/manual/audioref-mb-surfacefootstepaudiosystem.html")]
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public class SurfaceFootstepAudioSystem : MonoBehaviour
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{
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private MotionController m_MotionController = null;
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private ICharacterAudioHandler m_AudioHandler = null;
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private ISurfaceFootstepAudio m_AudioSetup = null;
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private RaycastHit m_Hit = new RaycastHit();
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private FpsSurfaceMaterial m_LastSurfaceId = FpsSurfaceMaterial.Default;
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public event UnityAction<FpsSurfaceMaterial> onFootStep;
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public enum Direction
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{
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Down,
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InverseGroundNormal,
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LocalVector,
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WorldVector,
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WorldParameter,
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WorldParameterInverse,
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LocalParameter,
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LocalParameterInverse
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}
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public FpsSurfaceMaterial lastStepMaterial
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{
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get;
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private set;
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}
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private void Awake()
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{
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m_MotionController = GetComponent<MotionController>();
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m_AudioHandler = GetComponent<ICharacterAudioHandler>();
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}
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public void SetFootstepAudio(ISurfaceFootstepAudio audio)
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{
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// Subscribe to step tracking
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if (m_AudioSetup == null && audio != null && audio.footstepAudio != null)
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m_MotionController.onStep += OnStep;
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// Unsubscribe from step tracking
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if (m_AudioSetup != null && audio == null)
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m_MotionController.onStep -= OnStep;
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m_AudioSetup = audio;
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}
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void OnStep()
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{
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float sqrSpeed = m_MotionController.characterController.velocity.sqrMagnitude;
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float minSpeed = m_AudioSetup.minimumSpeed;
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if (sqrSpeed > minSpeed * minSpeed)
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{
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// Get the surface
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var surface = GetGroundSurface();
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// Play the audio
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float volume;
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AudioClip clip = m_AudioSetup.footstepAudio.GetAudioClip(surface, out volume);
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if (clip != null)
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m_AudioHandler.PlayClip(clip, FpsCharacterAudioSource.Feet, volume);
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// Fire footstep event
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if (onFootStep != null)
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onFootStep(surface);
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}
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}
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FpsSurfaceMaterial GetGroundSurface()
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{
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FpsSurfaceMaterial result = m_LastSurfaceId;
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// Get charactercontroller info
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var cc = m_MotionController.characterController;
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var radius = cc.radius;
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var normalisedHeight = radius / cc.height;
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// Raycast for surface type
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if (cc.RayCast(normalisedHeight, m_AudioSetup.castDirection * (m_AudioSetup.castRange + radius), m_AudioSetup.castSpace, out m_Hit, PhysicsFilter.Masks.BulletBlockers, QueryTriggerInteraction.Ignore))
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{
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// Get surface ID from ray hit
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Transform t = m_Hit.transform;
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if (t != null)
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{
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BaseSurface s = t.GetComponent<BaseSurface>();
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if (s != null)
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result = s.GetSurface(m_Hit);
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else
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result = FpsSurfaceMaterial.Default;
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}
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m_LastSurfaceId = result;
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}
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return result;
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}
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}
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}
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