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Guardar todos los sprites de una textura recortados dentro de la herramienta de Unity como imagenes separadas png para usarlo en otra herramienta
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEditor;
using System.IO;
public class SpriteToTexture : EditorWindow
{
private Texture2D Atlas;
[MenuItem("Window/SpriteToTexture")]
public static void Init()
{
EditorWindow.GetWindow(typeof(SpriteToTexture), true, "Sprite To Texture");
}
void OnGUI()
{
Atlas = (Texture2D)EditorGUILayout.ObjectField("Atlas", Atlas, typeof(Texture2D), false);
if (Atlas) //Ya se asigno una textura?
{
if (GUILayout.Button("Convert"))
{
ConvertAtlas2Prefabs();
}
}
}
void ConvertAtlas2Prefabs()
{
string path= AssetDatabase.GetAssetPath(Atlas);
//Se puede leer?
try
{
Atlas.GetPixel(0, 0);
}
catch(UnityException e)
{
if(e.Message.StartsWith("Texture '" + Atlas.name + "' is not readable"))
{
//No se puede leer, avisamos y preguntamos si convertimos o cancelamos
bool Convertir = EditorUtility.DisplayDialog ("Error", "La imagene tiene que estar habilitado 'Read/Write Enabled'", "Convertir", "Cancelar");
if (Convertir)
{
//Lo hacemos que se puede leer
TextureImporter importer = AssetImporter.GetAtPath (path) as TextureImporter;
importer.isReadable = true;
AssetDatabase.ImportAsset (path);
}
else
{
//Cancelo
return;
}
}
}
//Tomamos todos los sprites
Object[] atlasAssets = AssetDatabase.LoadAllAssetsAtPath(path);
//Convertimos a png y guardamos
float progressActual = 0;
foreach (Object asset in atlasAssets)
{
EditorUtility.DisplayProgressBar("Converting", "Converting Sprites to Textures", progressActual / atlasAssets.LongLength);
if (AssetDatabase.IsSubAsset(asset))
{
//Convertimos
Texture2D img = ConvertSpriteToTexture (asset as Sprite);
//Generamos PNG
byte[] pngData = img.EncodeToPNG();
if (pngData != null)
{
//Guardamos imagen
File.WriteAllBytes(path + asset.name + ".png", pngData);
}
}
progressActual++;
}
if (progressActual != 0)
EditorUtility.ClearProgressBar();
AssetDatabase.Refresh();
this.Close();
}
//Ayuda obtener la carpeta
string GetFolder(string _path)
{
return _path.Remove(_path.LastIndexOf("/"));
}
//Covnierte el sprite a textura
static Texture2D ConvertSpriteToTexture(Sprite sprite)
{
try
{
if (sprite.rect.width != sprite.texture.width)
{
Texture2D newText = new Texture2D((int)sprite.rect.width, (int)sprite.rect.height);
Color[] newColors = sprite.texture.GetPixels((int)System.Math.Ceiling(sprite.textureRect.x),
(int)System.Math.Ceiling(sprite.textureRect.y),
(int)System.Math.Ceiling(sprite.textureRect.width),
(int)System.Math.Ceiling(sprite.textureRect.height));
newText.SetPixels(newColors);
newText.Apply();
return newText;
}
else
return sprite.texture;
}catch
{
return sprite.texture;
}
}
}
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