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55 行
2.0 KiB
55 行
2.0 KiB
using System;
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using UnityEngine;
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using UnityEngine.Playables;
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[Serializable]
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public class DialogueBehaviour : PlayableBehaviour
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{
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[SerializeField] private DialogueLineSO _dialogueLine = default;
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[SerializeField] private bool _pauseWhenClipEnds = default; //This won't work if the clip ends on the very last frame of the Timeline
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[HideInInspector] public CutsceneManager cutsceneManager;
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private bool _dialoguePlayed;
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/// <summary>
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/// Displays a line of dialogue on screen by interfacing with the <c>CutsceneManager</c>. This happens as soon as the playhead reaches the clip.
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/// </summary>
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public override void OnBehaviourPlay(Playable playable, FrameData info)
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{
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if (_dialoguePlayed)
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return;
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// Need to ask the CutsceneManager if the cutscene is playing, since the graph is not actually stopped/paused: it's just going at speed 0
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// This check is needed because when two clips are side by side and the first one stops the cutscene,
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// the OnBehaviourPlay of the second clip is still called and thus its dialogueLine is played (prematurely). This check makes sure it's not.
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if (playable.GetGraph().IsPlaying()
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&& cutsceneManager.IsCutscenePlaying)
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{
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//TODO: Find a way to "play" dialogue lines even when scrubbing the Timeline not in Play Mode
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if (_dialogueLine != null)
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{
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cutsceneManager.PlayDialogueFromClip(_dialogueLine);
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_dialoguePlayed = true;
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}
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else
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{
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Debug.LogWarning("This clip contains no DialogueLine");
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}
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}
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}
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public override void OnBehaviourPause(Playable playable, FrameData info)
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{
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// The check on _dialoguePlayed is needed because OnBehaviourPause is called also at the beginning of the Timeline,
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// so we need to make sure that the Timeline has actually gone through this clip (i.e. called OnBehaviourPlay) at least once before we stop it
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if (Application.isPlaying
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&& playable.GetGraph().IsPlaying()
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&& !playable.GetGraph().GetRootPlayable(0).IsDone()
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&& _dialoguePlayed)
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{
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if (_pauseWhenClipEnds)
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cutsceneManager.PauseTimeline();
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}
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}
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}
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