/// <summary>
/// Creates and saves the Scriptable Object as an asset in the Editor. Adapted from Unity3D wiki:
/// http://wiki.unity3d.com/index.php?title=CreateScriptableObjectAsset
/// </summary>
/// <returns>"Reference to the created asset instance</returns>
/// <typeparam name="T">The type of the Scriptable Object to create.</typeparam>
public static T CreateAsset <T>() where T : ScriptableObject
{
T scriptableObjectInstance = ScriptableObject.CreateInstance <T>();
string currentPath = SelectionUtility.GetDirectoryOfSelection();
string path = currentPath;
string typeName = typeof(T).ToString();
string typeWithoutNamespace = typeName.Split('.').Last();
string uniqueAssetPath = AssetDatabase.GenerateUniqueAssetPath(path + "New " + typeWithoutNamespace + ".asset");
AssetDatabaseUtility.SaveAndSelectObject(scriptableObjectInstance, currentPath, Path.GetFileName(uniqueAssetPath));
return(scriptableObjectInstance);
}
/// <summary>
/// Generates a clip from this SpriteAnim
/// </summary>
/// <param name="savePath">Save path.</param>
/// <param name="filenamePrefix">Filename prefix.</param>
public void GenerateClip(string savePath, string filenamePrefix)
{
// Output nothing if there is no clip name
if (string.IsNullOrEmpty(this.clipName))
{
return;
}
// Output nothing if no frames are defined
if (this.animationKeyframes == null || this.animationKeyframes.Length == 0)
{
return;
}
// Get the clip to add our Sprite Animation into, or create a new one.
AnimationClip builtClip;
bool clipIsNew;
if (this.savedClip == null)
{
builtClip = new AnimationClip();
clipIsNew = true;
}
else
{
builtClip = this.savedClip;
clipIsNew = false;
}
builtClip.name = this.clipName;
builtClip.frameRate = this.Samples;
// Set the Looping status of the clip
AnimationClipSettings clipSettings = new AnimationClipSettings();
clipSettings.loopTime = this.isLooping;
AnimationUtility.SetAnimationClipSettings(builtClip, clipSettings);
// Clear ALL existing sprite bindings in the clip
EditorCurveBinding[] existingObjectBinding = AnimationUtility.GetObjectReferenceCurveBindings(builtClip);
for (int i = 0; i < existingObjectBinding.Length; i++)
{
EditorCurveBinding currentBinding = existingObjectBinding[i];
if (currentBinding.type == typeof(SpriteRenderer))
{
AnimationUtility.SetObjectReferenceCurve(builtClip, currentBinding, null);
}
}
// Clear existing Scale since it will be replaced
EditorCurveBinding[] existingValueBindings = AnimationUtility.GetCurveBindings(builtClip);
for (int i = 0; i < existingValueBindings.Length; i++)
{
EditorCurveBinding currentBinding = existingValueBindings[i];
if (currentBinding.type == typeof(Transform) && currentBinding.propertyName == "m_LocalScale.x")
{
builtClip.SetCurve(currentBinding.path, typeof(Transform), "m_LocalScale", null);
break;
}
}
// Initialize the curve property
EditorCurveBinding curveBinding = new EditorCurveBinding();
curveBinding.propertyName = "m_Sprite";
curveBinding.path = this.PathToSpriteRenderer;
curveBinding.type = typeof(SpriteRenderer);
// Build keyframes for the property
Sprite[] sprites = AssetDatabaseUtility.LoadSpritesInTextureSorted(this.SourceTexture);
ObjectReferenceKeyframe[] keys = this.CreateKeysForKeyframeRanges(sprites, this.animationKeyframes, this.Samples);
// Build the clip if valid
if (keys != null && keys.Length > 0)
{
// Set the keyframes to the animation
AnimationUtility.SetObjectReferenceCurve(builtClip, curveBinding, keys);
// Add scaling to mirror sprites
// Need to also restore scale in case a clip was previously mirrored and then unflagged
AnimationCurve normalCurve = AnimationCurve.Linear(0.0f, 1.0f, builtClip.length, 1.0f);
AnimationCurve mirrorCurve = AnimationCurve.Linear(0.0f, -1.0f, builtClip.length, -1.0f);
AnimationCurve xCurve = this.isMirroredX ? mirrorCurve : normalCurve;
AnimationCurve yCurve = this.isMirroredY ? mirrorCurve : normalCurve;
builtClip.SetCurve(this.PathToSpriteRenderer, typeof(Transform), "localScale.x", xCurve);
builtClip.SetCurve(this.PathToSpriteRenderer, typeof(Transform), "localScale.y", yCurve);
builtClip.SetCurve(this.PathToSpriteRenderer, typeof(Transform), "localScale.z", normalCurve);
// Create or replace the file
string filenameSansExtension = filenamePrefix + "_" + this.clipName;
if (clipIsNew)
{
string filename = filenameSansExtension + ".anim";
string fullpath = savePath + filename;
AssetDatabase.CreateAsset(builtClip, fullpath);
}
else
{
string pathToAsset = AssetDatabase.GetAssetPath(this.savedClip);
// renaming file doesn't expect extension for some reason
AssetDatabase.RenameAsset(pathToAsset, filenameSansExtension);
}
// Store reference to created clip to allow overwriting / renaming
this.savedClip = builtClip;
}
else
{
if (keys == null)
{
Debug.LogWarning("Skipping clip due to no keys found: " + this.clipName);
}
else
{
Debug.LogWarning("Encountered invalid clip. Not enough keys. Skipping clip: " + this.clipName);
}
}
}
