public RegionAttachment NewRegionAttachment(Skin skin, string name, string path)
{
RegionAttachment regionAttachment = new RegionAttachment(name);
Texture2D texture = this.sprite.texture;
int instanceID = texture.GetInstanceID();
AtlasRegion atlasRegion;
if (!SpriteAttachmentLoader.atlasTable.TryGetValue(instanceID, out atlasRegion))
{
Material material = new Material(this.shader);
if (this.sprite.packed)
{
material.name = "Unity Packed Sprite Material";
}
else
{
material.name = this.sprite.name + " Sprite Material";
}
material.mainTexture = texture;
atlasRegion = new AtlasRegion();
AtlasPage atlasPage = new AtlasPage();
atlasPage.rendererObject = material;
atlasRegion.page = atlasPage;
SpriteAttachmentLoader.atlasTable[instanceID] = atlasRegion;
}
Rect textureRect = this.sprite.textureRect;
textureRect.x = Mathf.InverseLerp(0f, (float)texture.width, textureRect.x);
textureRect.y = Mathf.InverseLerp(0f, (float)texture.height, textureRect.y);
textureRect.width = Mathf.InverseLerp(0f, (float)texture.width, textureRect.width);
textureRect.height = Mathf.InverseLerp(0f, (float)texture.height, textureRect.height);
Bounds bounds = this.sprite.bounds;
Vector2 vector = bounds.min;
Vector2 vector2 = bounds.max;
Vector2 vector3 = bounds.size;
float num = 1f / this.sprite.pixelsPerUnit;
bool rotate = false;
if (this.sprite.packed)
{
rotate = (this.sprite.packingRotation == SpritePackingRotation.Any);
}
regionAttachment.SetUVs(textureRect.xMin, textureRect.yMax, textureRect.xMax, textureRect.yMin, rotate);
regionAttachment.RendererObject = atlasRegion;
regionAttachment.SetColor(Color.white);
regionAttachment.ScaleX = 1f;
regionAttachment.ScaleY = 1f;
regionAttachment.RegionOffsetX = this.sprite.rect.width * (0.5f - SpriteAttachmentLoader.InverseLerp(vector.x, vector2.x, 0f)) * num;
regionAttachment.RegionOffsetY = this.sprite.rect.height * (0.5f - SpriteAttachmentLoader.InverseLerp(vector.y, vector2.y, 0f)) * num;
regionAttachment.Width = vector3.x;
regionAttachment.Height = vector3.y;
regionAttachment.RegionWidth = vector3.x;
regionAttachment.RegionHeight = vector3.y;
regionAttachment.RegionOriginalWidth = vector3.x;
regionAttachment.RegionOriginalHeight = vector3.y;
regionAttachment.UpdateOffset();
return(regionAttachment);
}
