private static void GeneratePackTextureImpl(CNode node, ref PackTextureAttrSet packTextureAttrSet)
{
if (node != null &&
packTextureAttrSet != null &&
packTextureAttrSet.packTexture)
{
if (node.IsFilled)
{
TextureVertexAttr attri = node.refTextureInfo;
CalcVertexAtrribute(
packTextureAttrSet.packTexWidth,
packTextureAttrSet.packTexHeight,
ref attri
);
packTextureAttrSet.texVertexAttrList.Add(attri);
Fill2PackTexture(packTextureAttrSet.packTexture, attri);
}
if (node.leftChild != null)
{
GeneratePackTextureImpl(node.leftChild, ref packTextureAttrSet);
}
if (node.rightChild != null)
{
GeneratePackTextureImpl(node.rightChild, ref packTextureAttrSet);
}
}
}
public void CopyForm(PackTextureAttrSet other)
{
if (other != null)
{
packTexture = other.packTexture;
packSprite = other.packSprite;
texVertexAttrList = new List <TextureVertexAttr>(other.texVertexAttrList);
}
}
private static void GeneratePackTexture(CNode root, out PackTextureAttrSet outPackTextureAttrSet)
{
outPackTextureAttrSet = null;
if (root != null)
{
outPackTextureAttrSet = ScriptableObject.CreateInstance <PackTextureAttrSet>();
outPackTextureAttrSet.texVertexAttrList = new List <TextureVertexAttr>();
//后面的格式指定
outPackTextureAttrSet.packTexture = new Texture2D(root.refTextureInfo.blockDetail.rect.w, root.refTextureInfo.blockDetail.rect.h, TextureFormat.RGBA32, false);
SetDefaultColor(ref outPackTextureAttrSet.packTexture, mDefaultColor);
GeneratePackTextureImpl(root, ref outPackTextureAttrSet);
}
}
public static void Pack(Texture2D[] splitTexs, int width, int height, out PackTextureAttrSet outPackTextureAttrSet)
{
outPackTextureAttrSet = null;
if (splitTexs != null)
{
SortTexture(ref splitTexs);
CNode rootNode = GenerateRootNode(splitTexs, width, height);
if (rootNode != null)
{
//插一插
for (int i = 0; i < splitTexs.Length; ++i)
{
if (rootNode.Insert(splitTexs[i]) == null)
{
string assetPath = AssetDatabase.GetAssetPath(splitTexs[i]);
Debug.LogWarning(string.Format("no suitable area:{0}", assetPath));
}
}
//遍历一下节点树生成图集
GeneratePackTexture(rootNode, out outPackTextureAttrSet);
}
}
}
public static void Pack(Sprite[] sprites, int packTexWidth, int packTexHeight, out PackTextureAttrSet outPackTextureAttrSet)
{
outPackTextureAttrSet = null;
if (sprites != null)
{
Texture2D[] textures = new Texture2D[sprites.Length];
for (int i = 0; i < sprites.Length; ++i)
{
Texture2D readyTex = sprites[i].texture;;
textures[i] = readyTex;
SetTextureReadble(readyTex, true);
}
Pack(textures, packTexWidth, packTexHeight, out outPackTextureAttrSet);
//复原不可读
for (int i = 0; i < textures.Length; ++i)
{
Texture2D readyTex = textures[i];
if (readyTex != null)
{
SetTextureReadble(readyTex, false);
}
}
}
}