private void UpdateTextAnimation()
{
dialogueBoxLabel.ForceMeshUpdate();
TMP_TextInfo textInfo = dialogueBoxLabel.textInfo;
Vector3[] vertices = dialogueBoxLabel.mesh.vertices;
Matrix4x4 matrix;
Color32[] vertexColors;
bool areAllCharactersFullAlpha = true;
for (int i = 0; i < dialogueBoxLabel.textInfo.characterCount; i++)
{
TMP_CharacterInfo charInfo = textInfo.characterInfo[i];
// Skip this character if it is not visible
if (!charInfo.isVisible)
{
continue;
}
int vertexIndex = charInfo.vertexIndex;
int materialIndex = charInfo.materialReferenceIndex;
vertexColors = textInfo.meshInfo[materialIndex].colors32;
// Calculate the current alpha for each letter depending on whether it is fading/faded in or out
float alpha = 0f;
if (showText)
{
if (typewriterInProgress && textAnimationData != null)
{
TextAnimationData animationData = textAnimationData[i];
float animationTime = Time.unscaledTime - typewriterStartTime - animationData.fadeInDelay;
alpha = Mathf.Clamp01(animationTime / animationData.fadeInDuration);
}
else
{
alpha = 1f;
}
}
else
{
float animationTime = Time.unscaledTime - fadeOutStartTime;
alpha = 1f - Mathf.Clamp01(animationTime / fadeOutDuration);
}
// Keep track of whether all characters are fully visible for the sake of knowing when
// the typewriter animation has finished.
if (areAllCharactersFullAlpha && !Mathf.Approximately(alpha, 1f))
{
areAllCharactersFullAlpha = false;
}
// Set the character's alpha
Color32 color = charInfo.color;
color.a = (byte)(255 * alpha);
vertexColors[vertexIndex + 0] = color;
vertexColors[vertexIndex + 1] = color;
vertexColors[vertexIndex + 2] = color;
vertexColors[vertexIndex + 3] = color;
// Animate vertex positions
if (textAnimationData != null && textAnimationData[i].animationStyle != null)
{
TextAnimationData animationData = textAnimationData[i];
float typewriterTime = Time.unscaledTime - typewriterStartTime - animationData.fadeInDelay;
DialogueManager.TextAnimationStyle style = animationData.animationStyle;
// We want character animations to pivot at the character's center, so offset
// the vertices before we do any transformations
Vector3 offset = (charInfo.topLeft + charInfo.bottomRight) / 2;
vertices[vertexIndex + 0] -= offset;
vertices[vertexIndex + 1] -= offset;
vertices[vertexIndex + 2] -= offset;
vertices[vertexIndex + 3] -= offset;
// Calculate the animated translation, rotation and scale of the character
Vector3 translation = Vector3.zero;
if (style.translation.type != DialogueManager.TextAnimationStyle.Type.None)
{
float animationFactor = Mathf.Sin((Time.time - style.translation.delayPerCharacter * i) * Mathf.PI / style.translation.duration);
if (style.translation.type == DialogueManager.TextAnimationStyle.Type.Bounce)
{
animationFactor = Mathf.Abs(animationFactor);
}
translation = style.translation.offset * animationFactor;
}
if (style.translateIn.x.length > 0 && typewriterTime > 0f && typewriterTime <= style.translateIn.x.keys[style.translateIn.x.length - 1].time)
{
translation.x += style.translateIn.x.Evaluate(typewriterTime);
}
if (style.translateIn.y.length > 0 && typewriterTime > 0f && typewriterTime <= style.translateIn.y.keys[style.translateIn.y.length - 1].time)
{
translation.y += style.translateIn.y.Evaluate(typewriterTime);
}
Quaternion rotation = Quaternion.identity;
float angle = 0f;
if (style.rotation.type != DialogueManager.TextAnimationStyle.Type.None)
{
float animationFactor = Mathf.Sin((Time.time - style.rotation.delayPerCharacter * i) * Mathf.PI / style.rotation.duration);
if (style.rotation.type == DialogueManager.TextAnimationStyle.Type.Bounce)
{
animationFactor = Mathf.Abs(animationFactor);
}
angle = style.rotation.startAngle + style.rotation.angleOffset * animationFactor;
}
if (style.rotateIn.length > 0 && typewriterTime > 0f && typewriterTime <= style.rotateIn.keys[style.rotateIn.length - 1].time)
{
angle += style.rotateIn.Evaluate(typewriterTime);
}
rotation = Quaternion.Euler(0f, 0f, angle);
Vector3 scale = Vector3.one;
if (style.scale.type != DialogueManager.TextAnimationStyle.Type.None)
{
float animationFactor = Mathf.Sin((Time.time - style.scale.delayPerCharacter * i) * Mathf.PI / style.scale.duration);
if (style.scale.type == DialogueManager.TextAnimationStyle.Type.Bounce)
{
animationFactor = Mathf.Abs(animationFactor);
}
scale = style.scale.startScale + style.scale.scaleOffset * animationFactor;
scale.z = 1f;
}
if (style.scaleIn.x.length > 0 && typewriterTime > 0f && typewriterTime <= style.scaleIn.x.keys[style.scaleIn.x.length - 1].time)
{
scale.x *= style.scaleIn.x.Evaluate(typewriterTime);
}
if (style.scaleIn.y.length > 0 && typewriterTime > 0f && typewriterTime <= style.scaleIn.y.keys[style.scaleIn.y.length - 1].time)
{
scale.y *= style.scaleIn.y.Evaluate(typewriterTime);
}
// Apply the calculated transformations
matrix = Matrix4x4.TRS(translation, rotation, scale);
vertices[vertexIndex + 0] = matrix.MultiplyPoint3x4(vertices[vertexIndex + 0]);
vertices[vertexIndex + 1] = matrix.MultiplyPoint3x4(vertices[vertexIndex + 1]);
vertices[vertexIndex + 2] = matrix.MultiplyPoint3x4(vertices[vertexIndex + 2]);
vertices[vertexIndex + 3] = matrix.MultiplyPoint3x4(vertices[vertexIndex + 3]);
// Undo the offset to put the character back in the right place
vertices[vertexIndex + 0] += offset;
vertices[vertexIndex + 1] += offset;
vertices[vertexIndex + 2] += offset;
vertices[vertexIndex + 3] += offset;
}
}
// Mark the typewriter animation as over once all characters are fully visible
if (typewriterInProgress && areAllCharactersFullAlpha)
{
typewriterInProgress = false;
}
// Update the mesh
dialogueBoxLabel.mesh.vertices = vertices;
dialogueBoxLabel.UpdateVertexData(TMP_VertexDataUpdateFlags.Colors32);
}
private void InitCharacterAnimationDataFromText(string sourceText)
{
textAnimationData = new List <TextAnimationData>();
// Define animation properties shared between multiple characters
float totalFadeInDelay = 0f;
float delayMultiplier = 1f;
float fadeInDuration = typewriterFadeInDuration;
bool readingRichTextMarkup = false;
DialogueManager.TextAnimationStyle animationStyle = null;
for (int sourceIndex = 0; sourceIndex < sourceText.Length; sourceIndex++)
{
// Define one-time animation properties for this character
float pauseDuration = 0f;
// Process character animation markup
while (sourceText[sourceIndex] == '{')
{
// Read the command from the source text
TextAnimationCommand command = new TextAnimationCommand(sourceText, sourceIndex);
// Skip the source index ahead to the end of the command
if (command.fullText.Length > 0)
{
sourceIndex += command.fullText.Length;
}
else
{
break;
}
// Process the command:
switch (command.command.ToLower())
{
// Add a one-time pause between characters with the the indicated duration.
case "pause":
{
bool success = (command.args.Length > 0 && float.TryParse(command.args[0], out pauseDuration));
if (!success)
{
Debug.Log("Invalid argument(s) for command 'Pause'.");
}
}
break;
// Multiply the delay duration between characters until the end of the line (or until this command is called again).
case "multiplydelay":
{
bool success = (command.args.Length > 0 && float.TryParse(command.args[0], out delayMultiplier));
if (!success)
{
Debug.Log("Invalid argument for command 'MultiplyDelay'.");
}
}
break;
// Multiply the fade-in duration for each character until the end of the line (or until this command is called again).
case "fadeintime":
{
bool success = (command.args.Length > 0 && float.TryParse(command.args[0], out fadeInDuration));
if (!success)
{
Debug.Log("Invalid argument for command 'FadeInTime'.");
}
}
break;
// Set the animation style for this character and following characters
case "animationstyle":
{
animationStyle = null;
if (command.args.Length > 0)
{
for (int styleIndex = 0; styleIndex < DialogueManager.Instance.textAnimationStyles.Length; styleIndex++)
{
if (DialogueManager.Instance.textAnimationStyles[styleIndex].name == command.args[0])
{
animationStyle = DialogueManager.Instance.textAnimationStyles[styleIndex];
break;
}
}
}
if (animationStyle == null)
{
Debug.LogWarningFormat("Invalid text animation style '{0}'.", command.args[0]);
}
}
break;
// Clear the animation style for this character and following characters
case "clearanimationstyle":
{
animationStyle = null;
}
break;
default:
{
Debug.LogWarningFormat("Unknown command '{0}'.", command.command);
}
break;
}
}
// Skip this character if it is rich text markup
if (sourceText[sourceIndex] == '<')
{
readingRichTextMarkup = true;
}
else if (sourceText[sourceIndex] == '>')
{
readingRichTextMarkup = false;
continue;
}
if (readingRichTextMarkup)
{
continue;
}
// Calculate the delay duration for this character (time between the full text's
// animation beginning and this character appearing).
totalFadeInDelay += pauseDuration > 0f ? pauseDuration : typewriterCharacterDelay * delayMultiplier;
// Create the animation data for this character
TextAnimationData characterData = new TextAnimationData();
characterData.animationStyle = animationStyle;
characterData.fadeInDelay = totalFadeInDelay;
characterData.fadeInDuration = fadeInDuration;
textAnimationData.Add(characterData);
}
}
