76 lines
2.6 KiB
C#
76 lines
2.6 KiB
C#
using Ichni.RhythmGame.Beatmap;
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using UnityEngine;
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namespace Ichni.RhythmGame
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{
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public class CameraShakeEffect : EffectBase
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{
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#region [效果参数] Effect Parameters
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public float duration;
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public float frequency;
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public float amplitudeX;
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public float amplitudeY;
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public float amplitudeZ;
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private Transform _cameraTransform;
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#endregion
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#region [初始化] Initialization
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public CameraShakeEffect(float duration, float frequency, float amplitudeX, float amplitudeY, float amplitudeZ)
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: base(duration)
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{
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this.duration = duration;
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this.frequency = frequency; // 数值越大抖动越跳跃
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this.amplitudeX = amplitudeX;
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this.amplitudeY = amplitudeY;
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this.amplitudeZ = amplitudeZ;
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}
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#endregion
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#region [效果逻辑覆盖] Effect Pattern Overrides
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public override void PreExecute()
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{
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// 抓取摄像机 Transform
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if (_cameraTransform == null)
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{
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_cameraTransform = GameManager.Instance.cameraManager.gameCamera.cam.transform;
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}
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}
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public override void Execute()
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{
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if (_cameraTransform != null)
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{
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// 一套基于柏林噪声和音乐进展时间的稳固伪随机位移计算
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// 因为基于 effectProgressPercent 产生，所以录像回退或者暂停时，位置百分百受控复现
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float timeFactor = effectProgressPercent * frequency;
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// 随着时间推移，让震动平滑消退 (1.0 -> 0.0)
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float dampening = 1.0f - effectProgressPercent;
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float offsetX = (Mathf.PerlinNoise(timeFactor, 0) - 0.5f) * 2f * amplitudeX * dampening;
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float offsetY = (Mathf.PerlinNoise(0, timeFactor) - 0.5f) * 2f * amplitudeY * dampening;
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float offsetZ = (Mathf.PerlinNoise(timeFactor, timeFactor) - 0.5f) * 2f * amplitudeZ * dampening;
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// 这次应用仅在局部空间偏移，非常干净轻量
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_cameraTransform.localPosition = new Vector3(offsetX, offsetY, offsetZ);
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}
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}
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public override void Adjust() { ResetEffect(); }
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public override void Recover() { ResetEffect(); }
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public override void Disrupt() { ResetEffect(); }
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private void ResetEffect()
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{
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if (_cameraTransform != null)
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{
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_cameraTransform.localPosition = Vector3.zero;
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}
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}
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#endregion
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}
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}
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