/// <summary>
/// 更新动图 :将需要动图更新的地方,单独提出来更新(不变的就不更新)(优化4)
/// </summary>
void ChangeSprites()
{
listSprite.Clear(); //容器要清空,性能巨提升(优化5)
int listTagInfo_Count = listTagInfo.Count; //List.Count 循环的话 消耗也比较大,所以做个函数内局部缓存(优化6)
int spriteAsset_ListSpriteInfo_Count = m_spriteAsset.listSpriteInfo.Count;
for (int i = 0; i < listTagInfo_Count; i++)
{
listTagInfo_i = listTagInfo[i];
for (int j = 0; j < spriteAsset_ListSpriteInfo_Count; j++)
{
//通过标签的名称去索引spriteAsset里所对应的sprite的名称
if (listTagInfo[i].ID == m_spriteAsset.listSpriteInfo[j].ID)//这儿用字符串比较,消耗比较大 所以换做ID来判断
{
if (listTagInfo_i.count >= emojiId)
{
spriteRect = m_spriteAsset.listSpriteInfo[emojiId + m_spriteAsset.listSpriteInfo[j].ID].rect;
}
else
{
spriteRect = m_spriteAsset.listSpriteInfo[listTagInfo_i.count + m_spriteAsset.listSpriteInfo[j].ID].rect;
}
}
}
Vector2 texSize = new Vector2(m_spriteAsset.texSource.width, m_spriteAsset.texSource.height);
ExSpriteInfo tempSprite = tempSprites[i];
tempSprite.uv = new Vector2[4];
tempSprite.uv[0] = new Vector2(spriteRect.x / texSize.x, spriteRect.y / texSize.y);
tempSprite.uv[1] = new Vector2((spriteRect.x + spriteRect.width) / texSize.x, (spriteRect.y + spriteRect.height) / texSize.y);
tempSprite.uv[2] = new Vector2((spriteRect.x + spriteRect.width) / texSize.x, spriteRect.y / texSize.y);
tempSprite.uv[3] = new Vector2(spriteRect.x / texSize.x, (spriteRect.y + spriteRect.height) / texSize.y);
listSprite.Add(tempSprite);
}
}
/// <summary>
/// 解析quad标签 主要清除quad乱码 获取表情的位置
/// </summary>
/// <param name="verts"></param>
void CalcQuadTag(IList <UIVertex> verts)
{
//通过标签信息来设置需要绘制的图片的信息
if (null == listSprite)
{
listSprite = new List <ExSpriteInfo>();
}
else
{
listSprite.Clear();
}
for (int i = 0; i < listTagInfo.Count; i++)
{
ExSpriteInfo tempSprite = new ExSpriteInfo();
// tempSprite = new ExSpriteInfo();
//获取表情的第一个位置,则计算他的位置为quad占位的第四个点 顶点绘制顺序:
// 0 1
// 3 2
SpriteTagInfo listTagInfo_i = listTagInfo[i];
tempSprite.textpos = verts[((listTagInfo_i.index + 1) * 4) - 1].position;
//Debug.Log("listTagInfo_i.index "+ listTagInfo_i.index + "listTagInfo.Count " + listTagInfo.Count);
//设置图片的位置
tempSprite.vertices = new Vector3[4];
tempSprite.vertices[0] = new Vector3(0, 0, 0) + tempSprite.textpos;
tempSprite.vertices[1] = new Vector3(listTagInfo_i.size.x, listTagInfo_i.size.y, 0) + tempSprite.textpos;
tempSprite.vertices[2] = new Vector3(listTagInfo_i.size.x, 0, 0) + tempSprite.textpos;
tempSprite.vertices[3] = new Vector3(0, listTagInfo_i.size.y, 0) + tempSprite.textpos;
tempSprites.Add(tempSprite);
//计算其uv //spriteRect只是需要一个uv模板,具体是谁的并不关心
//spriteRect = m_spriteAsset.listSpriteInfo[0].rect;
for (int j = 0; j < m_spriteAsset.listSpriteInfo.Count; j++)
{
//通过标签的名称去索引spriteAsset里所对应的sprite的名称
if (listTagInfo_i.name == m_spriteAsset.listSpriteInfo[j].name)//这里用emoji的名称判断,然后记录ID,供后面用ID对比更新.(之所以不直接用ID判断是为了,可以通过发送#+名称 来发送表情) (优化3)
{
listTagInfo_i.ID = m_spriteAsset.listSpriteInfo[j].ID;
spriteRect = m_spriteAsset.listSpriteInfo[j].rect;
}
Vector2 texSize = new Vector2(m_spriteAsset.texSource.width, m_spriteAsset.texSource.height);
tempSprite.uv = new Vector2[4];
tempSprite.uv[0] = new Vector2(spriteRect.x / texSize.x, spriteRect.y / texSize.y);
tempSprite.uv[1] = new Vector2((spriteRect.x + spriteRect.width) / texSize.x, (spriteRect.y + spriteRect.height) / texSize.y);
tempSprite.uv[2] = new Vector2((spriteRect.x + spriteRect.width) / texSize.x, spriteRect.y / texSize.y);
tempSprite.uv[3] = new Vector2(spriteRect.x / texSize.x, (spriteRect.y + spriteRect.height) / texSize.y);
//声明三角顶点所需要的数组
tempSprite.triangles = new int[6];
listSprite.Add(tempSprite);
}
}
}