public TextureData CombineTexture2D(Texture2D[] textures)
{
//清理数据
TextureData data = new TextureData();
TextureListData textureListData = clearTextures(textures);
textures = textureListData.textures;
Texture2D[] newTextures = new Texture2D[textureListData.textures.Length];
for (int i = 0; i < newTextures.Length; i++)
{
Texture2D tx2D = new Texture2D(textures[i].width, textures[i].height, TextureFormat.ARGB32, false);
tx2D.SetPixels(textures[i].GetPixels(0, 0, textures[i].width, textures[i].height));
tx2D.Apply();
newTextures[i] = tx2D;
}
int acreage = 0;
int size = 1024;
bool doubleFlag = false;
for (int i = 0; i < newTextures.Length; i++)
{
acreage = acreage + newTextures[i].width * newTextures[i].height;
}
for (int i = 0; i < sizes.Length; i++)
{
if (acreage < sizes[i] * sizes[i])
{
size = sizes[i];
break;
}
}
if (acreage < (size * size / 2))
{
doubleFlag = true;
}
Texture2D texture = new Texture2D(size, doubleFlag ? (size / 2) : size);
Rect[] rects = texture.PackTextures(newTextures, 0);
data.texture = texture;
data.rects = rects;
data.indexs = textureListData.indexs;
return(data);
}
//清理相同的图集，保证不会打进同一张图
private TextureListData clearTextures(Texture2D[] textures)
{
TextureListData textureListData = new TextureListData();
List <Texture2D> newTextures = new List <Texture2D>();
int[] indexs = new int[textures.Length];
for (int i = 0; i < textures.Length; i++)
{
int index = getTextureIndex(newTextures, textures[i]);
if (index == -1)
{
newTextures.Add(textures[i]);
indexs[i] = newTextures.Count - 1;
}
else
{
indexs[i] = index;
}
}
textureListData.textures = newTextures.ToArray();
textureListData.indexs = indexs;
return(textureListData);
}