ICEY/Assets/GameAssets/Games/icey/Scripts/AtlasAsset.cs

/******************************************************************************
 * Spine Runtimes Software License
 * Version 2.1
 * 
 * Copyright (c) 2013, Esoteric Software
 * All rights reserved.
 * 
 * You are granted a perpetual, non-exclusive, non-sublicensable and
 * non-transferable license to install, execute and perform the Spine Runtimes
 * Software (the "Software") solely for internal use. Without the written
 * permission of Esoteric Software (typically granted by licensing Spine), you
 * may not (a) modify, translate, adapt or otherwise create derivative works,
 * improvements of the Software or develop new applications using the Software
 * or (b) remove, delete, alter or obscure any trademarks or any copyright,
 * trademark, patent or other intellectual property or proprietary rights
 * notices on or in the Software, including any copy thereof. Redistributions
 * in binary or source form must include this license and terms.
 * 
 * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL ESOTERIC SOFTARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *****************************************************************************/

using System;
using System.IO;
using UnityEngine;
using Spine;

/// <summary>Loads and stores a Spine atlas and list of materials.</summary>
public class AtlasAsset : ScriptableObject
{
    public TextAsset atlasFile;
    public Material[] materials;
    private Atlas atlas;

    public void Reset()
    {
        atlas = null;
    }

    /// <returns>The atlas or null if it could not be loaded.</returns>
    public Atlas GetAtlas()
    {
        if (atlasFile == null)
        {
            Debug.LogError("Atlas file not set for atlas asset: " + name, this);
            Reset();
            return null;
        }

        if (materials == null || materials.Length == 0)
        {
            Debug.LogError("Materials not set for atlas asset: " + name, this);
            Reset();
            return null;
        }

        if (atlas != null)
            return atlas;

        try
        {
            atlas = new Atlas(new StringReader(atlasFile.text), "", new MaterialsTextureLoader(this));
            atlas.FlipV();
            return atlas;
        }
        catch (Exception ex)
        {
            Debug.LogError("Error reading atlas file for atlas asset: " + name + "\n" + ex.Message + "\n" + ex.StackTrace, this);
            return null;
        }
    }
}

public class MaterialsTextureLoader : TextureLoader
{
    AtlasAsset atlasAsset;

    public MaterialsTextureLoader(AtlasAsset atlasAsset)
    {
        this.atlasAsset = atlasAsset;
    }

    public void Load(AtlasPage page, String path)
    {
        String name = Path.GetFileNameWithoutExtension(path);
        Material material = null;
        foreach (Material other in atlasAsset.materials)
        {
            if (other.mainTexture == null)
            {
                Debug.LogError("Material is missing texture: " + other.name, other);
                return;
            }
            if (other.mainTexture.name == name)
            {
                material = other;
                break;
            }
        }
        if (material == null)
        {
            Debug.LogError("Material with texture name \"" + name + "\" not found for atlas asset: " + atlasAsset.name, atlasAsset);
            return;
        }
        page.rendererObject = material;

        // Very old atlas files expected the texture's actual size to be used at runtime.
        if (page.width == 0 || page.height == 0)
        {
            page.width = material.mainTexture.width;
            page.height = material.mainTexture.height;
        }
    }

    public void Unload(object texture)
    {
    }
}