/// <summary>
/// 生成新的UV，用帧动画
/// </summary>
/// <param name="sprite"></param>
/// <param name="tempUv"></param>
/// <returns></returns>
protected TextMeshInfo GenerateNewUv(TexturePackSprite sprite, ref TextMeshInfo tempUv)
{
//TexUvInfo tempUv = new TexUvInfo();
//计算其uv
Vector2 texSize = Vector2.zero;
texSize = new Vector2(textSpriteAsset.spriteSheet.width, textSpriteAsset.spriteSheet.height);
tempUv.uv[0] = new Vector2(sprite.x / texSize.x, sprite.y / texSize.y);
tempUv.uv[1] = new Vector2((sprite.x + sprite.width) / texSize.x, (sprite.y + sprite.height) / texSize.y);
tempUv.uv[2] = new Vector2((sprite.x + sprite.width) / texSize.x, sprite.y / texSize.y);
tempUv.uv[3] = new Vector2(sprite.x / texSize.x, (sprite.y + sprite.height) / texSize.y);
return(tempUv);
}
private static Vertex ConvertTextVertexToUIRVertex(TextMeshInfo info, int index, Vector2 offset, VertexFlags flags = VertexFlags.IsText)
{
float dilate = 0.0f;
// If Bold, dilate the shape (this value is hardcoded, should be set from the font actual bold weight)
if (info.uvs2[index].y < 0.0f)
{
dilate = 1.0f;
}
return(new Vertex
{
position = new Vector3(info.vertices[index].x + offset.x, info.vertices[index].y + offset.y, UIRUtility.k_MeshPosZ),
uv = new Vector2(info.uvs0[index].x, info.uvs0[index].y),
tint = info.colors32[index],
flags = new Color32((byte)flags, (byte)(dilate * 255), 0, 0)
});
}
internal static void MakeText(TextMeshInfo meshInfo, Vector2 offset, AllocMeshData meshAlloc, VertexFlags flags = VertexFlags.IsText)
{
int vertexCount = LimitTextVertices(meshInfo.vertexCount);
int quadCount = vertexCount / 4;
var mesh = meshAlloc.Allocate((uint)(quadCount * 4), (uint)(quadCount * 6));
for (int q = 0, v = 0; q < quadCount; ++q, v += 4)
{
mesh.SetNextVertex(ConvertTextVertexToUIRVertex(meshInfo, v + 0, offset, flags));
mesh.SetNextVertex(ConvertTextVertexToUIRVertex(meshInfo, v + 1, offset, flags));
mesh.SetNextVertex(ConvertTextVertexToUIRVertex(meshInfo, v + 2, offset, flags));
mesh.SetNextVertex(ConvertTextVertexToUIRVertex(meshInfo, v + 3, offset, flags));
mesh.SetNextIndex((UInt16)(v + 0));
mesh.SetNextIndex((UInt16)(v + 1));
mesh.SetNextIndex((UInt16)(v + 2));
mesh.SetNextIndex((UInt16)(v + 2));
mesh.SetNextIndex((UInt16)(v + 3));
mesh.SetNextIndex((UInt16)(v + 0));
}
}
/// <summary>
/// 生成uv信息
/// </summary>
/// <param name="info"></param>
/// <param name="startVertex"></param>
/// <param name="unitsPerPixel"></param>
/// <returns></returns>
public int GenerateVertices(QuadPlaceholder info, Vector3 postion, int startVertex, float unitsPerPixel)
{
TextMeshInfo tempUv = new TextMeshInfo();
tempUv.startPos = postion * unitsPerPixel;
//设置图片的位置
tempUv.vertices = new Vector3[4];
tempUv.vertices[0] = new Vector3(0, 0, 0) + tempUv.startPos;
tempUv.vertices[1] = new Vector3(info.size.x, info.size.y, 0) + tempUv.startPos;
tempUv.vertices[2] = new Vector3(info.size.x, 0, 0) + tempUv.startPos;
tempUv.vertices[3] = new Vector3(0, info.size.y, 0) + tempUv.startPos;
TexturePackSprite sprite = null;
if (info.isAnimate)
{
RichTextAnimate textAnimate = textSpriteAsset.GetAnimateListByName(info.animateName);
if (textAnimate != null)
{
sprite = textAnimate.spriteList[0];
}
}
else if (textSpriteAsset.spriteInfoList != null)
{
int index = int.Parse(info.sprite);
if (textSpriteAsset.spriteInfoList.Count > index)
{
sprite = textSpriteAsset.spriteInfoList[index];
}
}
Vector2 texSize = Vector2.zero;
if (sprite == null)
{
startVertex += 4 * info.length - 1;
return(startVertex);
}
//计算其uv
texSize = new Vector2(textSpriteAsset.spriteSheet.width, textSpriteAsset.spriteSheet.height);
tempUv.uv = new Vector2[4];
if (!sprite.rotated)
{
tempUv.uv[0] = new Vector2(sprite.x / texSize.x, sprite.y / texSize.y);
tempUv.uv[1] = new Vector2((sprite.x + sprite.width) / texSize.x, (sprite.y + sprite.width) / texSize.y);
tempUv.uv[2] = new Vector2((sprite.x + sprite.width) / texSize.x, sprite.y / texSize.y);
tempUv.uv[3] = new Vector2(sprite.x / texSize.x, (sprite.y + sprite.width) / texSize.y);
}
else
{
tempUv.uv[0] = new Vector2(sprite.x / texSize.x, sprite.y / texSize.y);
tempUv.uv[1] = new Vector2((sprite.x + sprite.width) / texSize.x, (sprite.y + sprite.width) / texSize.y);
tempUv.uv[2] = new Vector2((sprite.x + sprite.width) / texSize.x, sprite.y / texSize.y);
tempUv.uv[3] = new Vector2(sprite.x / texSize.x, (sprite.y + sprite.width) / texSize.y);
}
//声明三角顶点所需要的数组
tempUv.triangles = new int[6];
startVertex += 4 * info.length - 1;
RendererInfo rendererInfo = new RendererInfo();
rendererInfo.uvInfo = tempUv;
rendererInfo.placeholder = info;
m_RendererInfo.Add(rendererInfo);
return(startVertex);
}