// Copyright (c) 2019-2022 Andreas Atteneder, All Rights Reserved.

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

// http://www.apache.org/licenses/LICENSE-2.0

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

using KtxUnity;

using UnityEngine;

using UnityEngine.UI;

public class LoadBasisFileSpriteDemo : MonoBehaviour

{

async void Start() {

// Create a basis universal texture instance

var texture = new BasisUniversalTexture();

// Load file from Streaming Assets folder

var result = await texture.LoadFromStreamingAssets("dachstein.basis");

if (result != null) {

// Calculate correct size

var pos = new Vector2(0,0);

var size = new Vector2(result.texture.width, result.texture.height);

// Flip Sprite, if required

if(result.orientation.IsXFlipped()) {

pos.x = size.x;

size.x *= -1;

}

if(result.orientation.IsYFlipped()) {

pos.y = size.y;

size.y *= -1;

}

// Create a Sprite and assign it to the Image

GetComponent<Image>().sprite = Sprite.Create(result.texture, new Rect(pos, size), Vector2.zero);

// Preserve aspect ratio:

// Flipping the sprite by making the size x or y negative (above) breaks Image's `Preserve Aspect` feature

// You can/have to calculate the RectTransform size yourself. Example:

// Calculate correct size and assign it to the RectTransform

const float scale = 0.5f; // Set this to whatever size you need it - best make it a serialized class field

var rt = GetComponent<RectTransform>();

rt.sizeDelta = new Vector2(result.texture.width*scale, result.texture.height*scale);

}

}

}