A game about forced loneliness, made by TACStudios
tacstudios.tngl.sh
1#if TEXT_TRACK_REQUIRES_TEXTMESH_PRO
2
3using TMPro;
4using UnityEngine;
5using UnityEngine.Playables;
6
7namespace Timeline.Samples
8{
9 // The runtime instance of a the TextTrack. It is responsible for blending and setting the final data
10 // on the Text binding
11 public class TextTrackMixerBehaviour : PlayableBehaviour
12 {
13 Color m_DefaultColor;
14 float m_DefaultFontSize;
15 string m_DefaultText;
16
17 TMP_Text m_TrackBinding;
18
19 // Called every frame that the timeline is evaluated. ProcessFrame is invoked after its' inputs.
20 public override void ProcessFrame(Playable playable, FrameData info, object playerData)
21 {
22 SetDefaults(playerData as TMP_Text);
23 if (m_TrackBinding == null)
24 return;
25
26 int inputCount = playable.GetInputCount();
27
28 Color blendedColor = Color.clear;
29 float blendedFontSize = 0f;
30 float totalWeight = 0f;
31 float greatestWeight = 0f;
32 string text = m_DefaultText;
33
34 for (int i = 0; i < inputCount; i++)
35 {
36 float inputWeight = playable.GetInputWeight(i);
37 ScriptPlayable<TextPlayableBehaviour> inputPlayable = (ScriptPlayable<TextPlayableBehaviour>)playable.GetInput(i);
38 TextPlayableBehaviour input = inputPlayable.GetBehaviour();
39
40 blendedColor += input.color * inputWeight;
41 blendedFontSize += input.fontSize * inputWeight;
42 totalWeight += inputWeight;
43
44 // use the text with the highest weight
45 if (inputWeight > greatestWeight)
46 {
47 text = input.text;
48 greatestWeight = inputWeight;
49 }
50 }
51
52 // blend to the default values
53 m_TrackBinding.color = Color.Lerp(m_DefaultColor, blendedColor, totalWeight);
54 m_TrackBinding.fontSize = Mathf.RoundToInt(Mathf.Lerp(m_DefaultFontSize, blendedFontSize, totalWeight));
55 m_TrackBinding.text = text;
56 }
57
58 // Invoked when the playable graph is destroyed, typically when PlayableDirector.Stop is called or the timeline
59 // is complete.
60 public override void OnPlayableDestroy(Playable playable)
61 {
62 RestoreDefaults();
63 }
64
65 void SetDefaults(TMP_Text text)
66 {
67 if (text == m_TrackBinding)
68 return;
69
70 RestoreDefaults();
71
72 m_TrackBinding = text;
73 if (m_TrackBinding != null)
74 {
75 m_DefaultColor = m_TrackBinding.color;
76 m_DefaultFontSize = m_TrackBinding.fontSize;
77 m_DefaultText = m_TrackBinding.text;
78 }
79 }
80
81 void RestoreDefaults()
82 {
83 if (m_TrackBinding == null)
84 return;
85
86 m_TrackBinding.color = m_DefaultColor;
87 m_TrackBinding.fontSize = m_DefaultFontSize;
88 m_TrackBinding.text = m_DefaultText;
89 }
90 }
91}
92
93#endif