public static SpriteFrame CreateWithFrameDict(FrameDataDict frameDataDict, Texture2D bigTexture, string textureType)
{
Texture2D texture;
if (textureType == TextureType.Restore)
{
texture = Restore(frameDataDict, bigTexture);
}
else
{
texture = JustSplit(frameDataDict, bigTexture);
}
Rect rect = new Rect(new Vector2(0, 0), new Vector2(texture.width, texture.height));
Sprite sprite = Sprite.Create(texture, rect, new Vector2(0.5f, 0.5f));
sprite.name = frameDataDict.name;
SpriteFrame spriteFrame = new SpriteFrame();
spriteFrame.sprite = sprite;
spriteFrame.name = frameDataDict.name;
spriteFrame.rect = rect;
spriteFrame.size = new Vector2(frameDataDict.width, frameDataDict.height);
return(spriteFrame);
}
// 从大图裁剪出小图，并还原到原始大小(恢复其四周被裁剪的透明像素)
public static Texture2D Restore(FrameDataDict frameDataDict, Texture2D bigTexture)
{
int sampleWidth = frameDataDict.width;
int sampleHeight = frameDataDict.height;
int destWidth = frameDataDict.sourceSizeWidth;
int destHeight = frameDataDict.sourceSizeHeight;
//计算偏移值(不受旋转影响)
int offsetLX = frameDataDict.offsetWidth + frameDataDict.sourceSizeWidth / 2 - frameDataDict.width / 2;
int offsetBY = -(-frameDataDict.offsetHeight + frameDataDict.height / 2 - frameDataDict.sourceSizeHeight / 2);
Texture2D destTexture = new Texture2D(destWidth, destHeight, bigTexture.format, false);
if (frameDataDict.rotated)
{
sampleWidth = frameDataDict.height;
sampleHeight = frameDataDict.width;
}
// 起始位置(Y轴需变换，受旋转影响)
int startPosx = frameDataDict.x;
int startPosY = bigTexture.height - (frameDataDict.y + sampleHeight);
Color[] colors = bigTexture.GetPixels(startPosx, startPosY, sampleWidth, sampleHeight);
// 设置像素，采样
for (int x = 0; x < destWidth; x++)
{
for (int y = 0; y < destHeight; y++)
{
if (x >= offsetLX && x < frameDataDict.width + offsetLX && y >= offsetBY && y < frameDataDict.height + offsetBY)
{
if (frameDataDict.rotated)
{
//旋转时，目标图中的坐标(x, y),对应采样区坐标为(y-offsetY, height - 1- (x-offsetLX))
int index = (sampleHeight - 1 - (x - offsetLX)) * sampleWidth + (y - offsetBY);
destTexture.SetPixel(x, y, colors[index]);
}
else
{
// 没有旋转时，目标图中(x, y) 对应采样区(x-offsetLX, y-offsetBY)
int index = (y - offsetBY) * sampleWidth + (x - offsetLX);
destTexture.SetPixel(x, y, colors[index]);
}
}
else
{
//四周颜色透明
destTexture.SetPixel(x, y, new Color(0, 0, 0, 0));
}
}
}
destTexture.Apply();
return(destTexture);
}
// 仅从大图中裁剪出小图
public static Texture2D JustSplit(FrameDataDict frameDataDict, Texture2D bigTexture)
{
int sampleWidth = frameDataDict.width;
int sampleHeight = frameDataDict.height;
int destWidth = sampleWidth;
int destHeight = sampleHeight;
Texture2D destTexture = new Texture2D(destWidth, destHeight, bigTexture.format, false);
//旋转时，宽高互换
if (frameDataDict.rotated)
{
sampleWidth = frameDataDict.height;
sampleHeight = frameDataDict.width;
}
//起始位置(Y轴需变换, 受旋转影响)
int startPosX = frameDataDict.x;
int startPosY = bigTexture.height - (frameDataDict.y + sampleHeight);
//(x,y)对应 y*width + x
Color[] colors = bigTexture.GetPixels(startPosX, startPosY, sampleWidth, sampleHeight);
// 设置像素，采样
for (int x = 0; x < destWidth; x++)
{
for (int y = 0; y < destHeight; y++)
{
if (frameDataDict.rotated) // 顺时针旋转
{
// 旋转时，目标图中的坐标(x, y) 对应采样区坐标为(y, height-1-x)
int index = (sampleHeight - 1 - x) * sampleHeight + y;
destTexture.SetPixel(x, y, colors[index]);
}
else
{
//没有旋转时，目标图中的坐标(x, y), 对应采样区坐标为(x, y)
int index = y * sampleWidth + x;
destTexture.SetPixel(x, y, colors[index]);
}
}
}
destTexture.Apply();
return(destTexture);
}
private static List <FrameDataDict> ParseFrames(PlistDictionary dFrames, int format)
{
List <FrameDataDict> frames = new List <FrameDataDict>();
foreach (KeyValuePair <string, object> kv in dFrames)
{
if (kv.Value is PlistDictionary)
{
FrameDataDict frameDataDict = new FrameDataDict();
frameDataDict.name = kv.Key;
PlistDictionary frameDict = kv.Value as PlistDictionary;
if (format == 2)
{
RectInt frame = PlistDictionary.ParseRectInt(frameDict["frame"] as string);
frameDataDict.x = frame.x;
frameDataDict.y = frame.y;
frameDataDict.width = frame.width;
frameDataDict.height = frame.height;
}
else
{
RectInt frame = PlistDictionary.ParseRectInt(frameDict["textureRect"] as string);
frameDataDict.x = frame.x;
frameDataDict.y = frame.y;
frameDataDict.width = frame.width;
frameDataDict.height = frame.height;
}
if (format == 2)
{
Vector2 offset = PlistDictionary.ParseVector2(frameDataDict["offset"] as string);
frameDataDict.offsetHeight = (int)offset.y;
frameDataDict.offsetWidth = (int)offset.x;
}
else
{
Vector2 offset = PlistDictionary.ParseVector2(frameDataDict["spriteOffset"] as string);
frameDataDict.offsetHeight = (int)offset.y;
frameDataDict.offsetWidth = (int)offset.x;
}
if (format == 2)
{
frameDataDict.rotated = (bool)frameDict["rotated"];
}
else
{
frameDataDict.rotated = (bool)frameDict["textureRotated"];
}
if (format == 2)
{
Vector2 size = PlistDictionary.ParseVector2(frameDict["sourceSize"] as string);
frameDataDict.sourceSizeWidth = (int)size.x;
frameDataDict.sourceSizeHeight = (int)size.y;
}
else
{
Vector2 size = PlistDictionary.ParseVector2(frameDict["spriteSourceSize"] as string);
frameDataDict.sourceSizeWidth = (int)size.x;
frameDataDict.sourceSizeHeight = (int)size.y;
}
frames.Add(frameDataDict);
}
}
return(frames);
}