| | | 1 | | using System; |
| | | 2 | | using System.Collections; |
| | | 3 | | using UnityEngine; |
| | | 4 | | |
| | | 5 | | namespace DCL |
| | | 6 | | { |
| | | 7 | | /// <summary> |
| | | 8 | | /// Player for a Gif Asset. |
| | | 9 | | /// Player will stop if Gif Asset is disposed. |
| | | 10 | | /// Is not this player responsibility to dispose Gif Asset. Gif Asset should be explicitly disposed. |
| | | 11 | | /// </summary> |
| | | 12 | | public class GifPlayer : IDisposable |
| | | 13 | | { |
| | | 14 | | public event Action<Texture2D> OnFrameTextureChanged; |
| | | 15 | | |
| | 0 | 16 | | public bool isPlaying { get; private set; } = false; |
| | | 17 | | |
| | | 18 | | private Asset_Gif gifAsset = null; |
| | | 19 | | private int currentFrameIdx = 0; |
| | | 20 | | private Coroutine updateRoutine = null; |
| | | 21 | | private float currentTimeDelay = 0; |
| | | 22 | | |
| | 0 | 23 | | public GifPlayer(Asset_Gif asset) { SetGif(asset); } |
| | | 24 | | |
| | 0 | 25 | | public GifPlayer() { } |
| | | 26 | | |
| | | 27 | | /// <summary> |
| | | 28 | | /// Set gif asset for the player |
| | | 29 | | /// </summary> |
| | | 30 | | /// <param name="asset">gif asset</param> |
| | | 31 | | public void SetGif(Asset_Gif asset) |
| | | 32 | | { |
| | 0 | 33 | | gifAsset = asset; |
| | | 34 | | |
| | 0 | 35 | | if (isPlaying && IsValidAsset()) |
| | | 36 | | { |
| | 0 | 37 | | if (currentFrameIdx >= asset.frames.Length) |
| | | 38 | | { |
| | 0 | 39 | | currentFrameIdx = 0; |
| | | 40 | | } |
| | 0 | 41 | | SetFrame(currentFrameIdx); |
| | | 42 | | } |
| | 0 | 43 | | } |
| | | 44 | | |
| | | 45 | | public void Play(bool reset = false) |
| | | 46 | | { |
| | 0 | 47 | | if (reset) |
| | | 48 | | { |
| | 0 | 49 | | currentFrameIdx = 0; |
| | 0 | 50 | | currentTimeDelay = 0; |
| | 0 | 51 | | Stop(); |
| | | 52 | | } |
| | | 53 | | |
| | 0 | 54 | | isPlaying = true; |
| | | 55 | | |
| | 0 | 56 | | if (updateRoutine == null && gifAsset != null) |
| | | 57 | | { |
| | 0 | 58 | | updateRoutine = CoroutineStarter.Start(UpdateRoutine()); |
| | | 59 | | } |
| | 0 | 60 | | } |
| | | 61 | | |
| | | 62 | | public void Stop() |
| | | 63 | | { |
| | 0 | 64 | | isPlaying = false; |
| | | 65 | | |
| | 0 | 66 | | if (updateRoutine != null) |
| | | 67 | | { |
| | 0 | 68 | | CoroutineStarter.Stop(updateRoutine); |
| | 0 | 69 | | updateRoutine = null; |
| | | 70 | | } |
| | 0 | 71 | | } |
| | | 72 | | |
| | 0 | 73 | | public void Dispose() { Stop(); } |
| | | 74 | | |
| | | 75 | | private IEnumerator UpdateRoutine() |
| | | 76 | | { |
| | 0 | 77 | | while (isPlaying) |
| | | 78 | | { |
| | 0 | 79 | | yield return WaitForSecondsCache.Get(currentTimeDelay); |
| | 0 | 80 | | UpdateFrame(); |
| | | 81 | | } |
| | 0 | 82 | | } |
| | | 83 | | |
| | 0 | 84 | | private bool IsValidAsset() { return gifAsset?.frames != null && gifAsset.frames.Length > 0; } |
| | | 85 | | |
| | | 86 | | private void UpdateFrame() |
| | | 87 | | { |
| | 0 | 88 | | if (!IsValidAsset()) |
| | | 89 | | { |
| | 0 | 90 | | return; |
| | | 91 | | } |
| | | 92 | | |
| | 0 | 93 | | currentFrameIdx++; |
| | | 94 | | |
| | 0 | 95 | | if (currentFrameIdx >= gifAsset.frames.Length) |
| | | 96 | | { |
| | 0 | 97 | | currentFrameIdx = 0; |
| | | 98 | | } |
| | | 99 | | |
| | 0 | 100 | | SetFrame(currentFrameIdx); |
| | 0 | 101 | | } |
| | | 102 | | |
| | | 103 | | private void SetFrame(int frameIdx) |
| | | 104 | | { |
| | 0 | 105 | | currentTimeDelay = gifAsset.frames[frameIdx].delay; |
| | 0 | 106 | | OnFrameTextureChanged?.Invoke(gifAsset.frames[frameIdx].texture); |
| | 0 | 107 | | } |
| | | 108 | | } |
| | | 109 | | } |