93 lines
2.7 KiB
C#
93 lines
2.7 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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[System.Serializable]
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public enum StepType {
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Left,
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Right
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}
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public class CameraBobber : MonoBehaviour {
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public Options Options;
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public Transform CameraTransform;
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public AnimationCurve HeadBobCurve = AnimationCurve.Constant(0, 1, 0);
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public float StepDuration;
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public float BobMagnitude;
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public bool Moving = false;
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public bool InAir = false;
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public AudioSource FootstepSource;
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// TODO: Vary by ground material
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public AudioClip[] LandingFootstepClips;
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public AudioClip[] RightFootstepClips;
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public AudioClip[] LeftFootstepClips;
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[Header("Runtime values")]
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public StepType LastStep;
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private float StepTime = 0;
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private bool WasMoving = false;
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private bool WasInAir = false;
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private Vector3 BasePosition;
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private void Start() {
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BasePosition = CameraTransform.localPosition;
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}
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private void Update() {
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if (Moving) {
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StepTime += Time.deltaTime;
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if (StepTime >= StepDuration) {
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StepTime -= StepDuration;
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if (!InAir) {
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AlternateStep();
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PlayStepSound(GetClips(LastStep), 1f);
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}
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}
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} else {
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StepTime = 0;
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}
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Vector3 TargetPosition = BasePosition;
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if (Options.CameraBobbing) {
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if (InAir) {
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TargetPosition = BasePosition + Vector3.up * HeadBobCurve.Evaluate(0.5f) * BobMagnitude;
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} else {
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TargetPosition = BasePosition + Vector3.up * HeadBobCurve.Evaluate(StepTime / StepDuration) * BobMagnitude;
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}
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}
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CameraTransform.localPosition = Vector3.Lerp(CameraTransform.localPosition, TargetPosition, 10f * Time.deltaTime);
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if (Moving != WasMoving && !InAir) {
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AlternateStep();
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PlayStepSound(GetClips(LastStep), 0.7f);
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} else if (WasInAir != InAir) {
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AlternateStep();
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PlayStepSound(LandingFootstepClips, 1f);
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}
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WasMoving = Moving;
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WasInAir = InAir;
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}
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private void AlternateStep() {
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LastStep = LastStep == StepType.Left ? StepType.Right : StepType.Left;
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}
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private AudioClip[] GetClips(StepType stepType) {
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switch (stepType) {
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default:
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case StepType.Left:
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return LeftFootstepClips;
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case StepType.Right:
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return RightFootstepClips;
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}
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}
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private void PlayStepSound(AudioClip[] clips, float volumeModifier) {
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if (clips.Length > 0) {
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FootstepSource.PlayOneShot(clips[Random.Range(0, clips.Length)], volumeModifier);
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}
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}
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}
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