public static (Scene, bool) LoadScene(string proPath, ISkyBoxAble skyBox)
{
bool readed = true;
string basePath = Path.GetDirectoryName(proPath);
string fname = Path.Combine(proPath);
string[] lines = File.ReadAllLines(fname);
HashSet <string> mtlFiles = new HashSet <string>();
Scene result = new Scene(skyBox);
int linenum = 0;
try {
foreach (string line in lines)
{
linenum++;
if (string.IsNullOrWhiteSpace(line) || line.StartsWith("#"))
{
continue;
}
string[] cmds = line.Split(' ');
if (cmds.Length != 3)
{
throw new Exception("错误的行指令数量: " + fname);
}
RenderObject robj;
switch (cmds[0])
{
case "mt": // mashtrigle
{
string mtfile = Path.Combine(basePath, cmds[1] + ".mritri");
robj = GetMashTrigle(mtfile);
}
break;
case "l.p": // point light
{
PointLight p = new PointLight();
string[] values = cmds[1].Split(',');
if (values.Length != 4)
{
throw new Exception("错误的描述信息");
}
float x = 0.0f, y = 0.0f, z = 0.0f, r = 0.0f;
float.TryParse(values[0], out x);
float.TryParse(values[1], out y);
float.TryParse(values[2], out z);
float.TryParse(values[3], out r);
p.Position = new Vector3f(x, y, z);
p.R = r;
robj = p;
}
break;
default:
throw new Exception("未知的实体类型" + cmds[0]);
//break;
}
string mtlPath = Path.Combine(basePath, cmds[2] + ".mrimtl");
Material material = GetMaterial(mtlPath);
robj.Material = material;
result.Objects.Add(robj);
}
}
catch (Exception ex) {
Console.WriteLine($"error on line {linenum} : {ex.Message}");
readed = false;
}
return(result, readed);
}
public Scene(ISkyBoxAble skyBox)
{
SkyBox = skyBox;
}
