private void ValidateSpriteList()
{
if (m_Sprites.hasMultipleDifferentValues)
{
return;
}
if (m_Sprites.arraySize <= 1)
{
return;
}
Texture texture = null;
for (int i = 0; i < m_Sprites.arraySize; i++)
{
SerializedProperty spriteData = m_Sprites.GetArrayElementAtIndex(i);
SerializedProperty prop = spriteData.FindPropertyRelative("sprite");
Sprite sprite = prop.objectReferenceValue as Sprite;
if (sprite != null)
{
// Find the sprite atlas asset for this texture, if it has one
var spriteAtlas = SpriteEditorExtension.GetActiveAtlas(sprite);
if (spriteAtlas != null)
{
if (spriteAtlas.GetPackingSettings().enableTightPacking)
{
EditorGUILayout.HelpBox("Tightly packed Sprite Atlases are not supported.", MessageType.Error, true);
break;
}
}
if (texture == null)
{
texture = sprite.GetTextureForPlayMode();
}
else if (texture != sprite.GetTextureForPlayMode())
{
if (EditorSettings.spritePackerMode == SpritePackerMode.Disabled)
{
EditorGUILayout.HelpBox("To use multiple sprites, enable the Sprite Packer Mode in the Editor Project Settings, and create a Texture Atlas.", MessageType.Error, true);
}
else if (EditorSettings.spritePackerMode == SpritePackerMode.SpriteAtlasV2 || EditorSettings.spritePackerMode == SpritePackerMode.AlwaysOnAtlas || EditorSettings.spritePackerMode == SpritePackerMode.BuildTimeOnlyAtlas)
{
EditorGUILayout.HelpBox("All Sprites must share the same Texture Atlas. Also check that all your sprites fit onto 1 texture of the Sprite Atlas.", MessageType.Error, true);
}
else
{
EditorGUILayout.HelpBox("All Sprites must share the same texture. Either pack all Sprites into one Texture by setting the Packing Tag, or use a Multiple Mode Sprite.", MessageType.Error, true);
}
break;
}
else if (sprite.border != Vector4.zero)
{
EditorGUILayout.HelpBox("Sprite borders are not supported. They will be ignored.", MessageType.Warning, true);
break;
}
}
}
}
internal static Texture2D GetAtlasTexture(this Sprite sprite)
{
var texture = SpriteEditorExtension.GetActiveAtlasTexture(sprite);
if (null == texture || !texture)
{
return(null);
}
return(texture.GetInstanceID() == sprite.texture.GetInstanceID() ? null : texture);
}
internal static Vector2 GetAtlasTextureRectOffset(this Sprite sprite)
{
return(SpriteEditorExtension.GetActiveAtlasTextureRectOffset(sprite));
}
internal static Texture2D GetAtlasAlphaTexture(this Sprite sprite)
{
return(SpriteEditorExtension.GetActiveAtlasAlphaTexture(sprite));
}
internal static SpriteAtlas GetAtlas(this Sprite sprite)
{
return(SpriteEditorExtension.GetActiveAtlas(sprite));
}
