/// <summary>
/// 绘制一个幻影
/// </summary>
/// <param name="propertyBlock"></param>
/// <param name="afterimageData"></param>
private void DrawAfterimageItem(MaterialPropertyBlock propertyBlock, AfterimageData afterimageData)
{
for (int i = 0; i < afterimageData.AM4x4List.Count; i++)
{
AfterimageMatrix4x4 item = afterimageData.AM4x4List[i];
//设置贴图
propertyBlock.SetTexture(idMainTex, item.sprite.texture);
//获得网格
var mesh = SpriteToMesh(item.sprite);
buffer.DrawMesh(mesh, Matrix4x4.TRS(item.position, item.rotation, item.localScale), item.material, 0, 0, propertyBlock);
}
}
/// <summary>
/// 绘制所有幻影
/// </summary>
/// <param name="afterimageDatas"></param>
private void DrawAfterimage(List <AfterimageData> afterimageDatas)
{
buffer = new CommandBuffer();
var propertyBlock = new MaterialPropertyBlock();
for (int i = 0; i < afterimageDatas.Count; i++)
{
AfterimageData item = afterimageDatas[i];
//绘制一张幻影
//设置颜色
propertyBlock.SetColor(idColor, item.color);
//设置绘制数据
DrawAfterimageItem(propertyBlock, item);
}
}
/// <summary>
/// 幻影数据刷新
/// </summary>
private void DataUptate()
{
if ((transform.position - lastPosition).magnitude < spacing)
{
return;
}
lastPosition = transform.position;
AfterimageData afterimageData = new AfterimageData();
//设置时间
afterimageData.live = live;
afterimageData.color = color;
//遍历所有精灵创建一个幻影
for (int i = 0; i < spriteList.Count; i++)
{
var item = spriteList[i];
//获得当前精灵的信息
AfterimageMatrix4x4 afterimageMatrix4X4 = new AfterimageMatrix4x4(
item.transform.position,
item.transform.rotation,
item.transform.lossyScale,
item.sprite,
item.material);
//添加当前精灵到幻影中
afterimageData.AM4x4List.Add(afterimageMatrix4X4);
}
//将新的幻影添加到数据中
AfterimageDataList.Add(afterimageData);
}